Electric cooker

Abstract

The utility model provides an electric cooker. The electric cooker comprises a shell, a plurality of inner pots, a heating device used for heating the inner pots and only one fan. Wherein the fan has a first orthographic projection on the bottom surface of the shell, and the inner pot has a second orthographic projection on the bottom surface of the shell; the first orthographic projection is provided with a first axis which is located on the bottom surface and passes through the center of the first orthographic projection, and the first axis extends in the width direction of the electric cooker; the center of the at least one second orthographic projection is located on one side of the first axis, and the center of the at least one second orthographic projection is located on the other side of the first axis; wherein the vertical distance between the center of any second orthographic projection and the first axis is smaller than or equal to a preset distance threshold value, and at least part of the first orthographic projection is located in at least one second orthographic projection. According to the electric cooker, the problem of temperature channeling between the inner pots can be effectively solved, the heat dissipation effect is guaranteed, meanwhile, the structure of the electric cooker can be simplified, and the size and cost of the multi-container electric cooker can be controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to an electric rice cooker. Background Art

[0002] The existing multi-pot rice cooker has a high overall temperature rise due to the large number of heat sources. When multiple pots work together, even the machine shell will be hot to the touch. At the same time, the temperature between the inner pots (or inner pots) is serious. When one pot is cooking, the temperature of the adjacent pot will be relatively high even if no cooking is done, affecting the user experience. When multiple pots work together, the cooking process of the adjacent pots will also be affected to a certain extent.

[0003] In order to improve the temperature transfer phenomenon, a partition can be set between the two inner pots to prevent heat from being transferred between the two pots. However, due to structural limitations, the partition in the middle cannot completely seal the two pots apart, resulting in a relatively serious temperature transfer problem. On the other hand, a cooling fan can also be set inside the multi-pot rice cooker to remove heat from the inside of the rice cooker through airflow, but this usually requires the installation of multiple fans, which easily leads to a large volume of the multi-pot rice cooker and a more complicated structure, which in turn leads to an increase in cost. Utility Model Content

[0004] Based on this, the utility model aims to provide an improved electric rice cooker to at least solve the problem of temperature crossover between inner pots in a multi-pot rice cooker and to control the volume and cost of the multi-pot rice cooker.

[0005] In a first aspect, the present application provides an electric rice cooker, comprising:

[0006] A housing, wherein a mounting cavity is formed in the housing, wherein the mounting cavity includes a plurality of heating cavities, and the housing is further provided with openings corresponding to and communicating with the heating cavities one by one;

[0007] a plurality of inner pots, each of the inner pots being placed in a corresponding heating cavity through the opening, each of the heating cavities being provided with a heating device for heating the inner pot; and,

[0008] There is only one fan, which is arranged in the installation cavity;

[0009] The fan has a first orthographic projection on the bottom surface of the shell, and the inner pot has a second orthographic projection on the bottom surface of the shell; the first orthographic projection has a first axis located on the bottom surface and passing through the center of the first orthographic projection, and the first axis extends along the width direction of the electric rice cooker; the center of at least one of the second orthographic projections is located on one side of the first axis, and the center of at least one of the second orthographic projections is located on the other side of the first axis;

[0010] Wherein, a vertical distance between a center of any second orthographic projection and the first axis is less than or equal to a preset distance threshold, and at least a portion of the first orthographic projection is located within at least one of the second orthographic projections.

[0011] The above-mentioned electric rice cooker, by arranging a fan in the inner cavity, can form an airflow between at least two adjacent inner pots to take the heat out to the outside of the electric rice cooker, thereby effectively solving the problem of temperature crossover between the inner pots; at the same time, only one fan is arranged in the electric rice cooker, and from the position distribution of the second orthographic projection of each inner pot on the bottom surface and the first orthographic projection of the fan on the bottom surface, it can be seen that the fan is located in the middle area of ​​the multiple inner pots, and at least one inner pot is arranged on the opposite sides of the fan, which is conducive to synchronously taking away the heat on the opposite sides of the fan when it is running, thereby improving the heat dissipation efficiency; in addition, at least part of the first orthographic projection is located in at least one second orthographic projection, indicating that at least part of the airflow formed by the fan can be directly blown to the inner pot, which is conducive to further improving the heat dissipation effect. In summary, the above-mentioned electric rice cooker can realize the cooling of multiple inner pots in the electric rice cooker by only arranging one fan, which simplifies the structure of the multi-pot electric rice cooker and is conducive to controlling the volume and cost of the multi-pot electric rice cooker.

[0012] In one embodiment, the distance threshold is less than half of the length of the electric rice cooker, wherein the length of the electric rice cooker is greater than or equal to the width of the electric rice cooker.

[0013] In one embodiment, the first axis passes through the center of the bottom surface of the housing.

[0014] In one of the embodiments, the shell is provided with an air inlet corresponding to the fan and at least two air outlets, and the air inlet has a first side and a second side relative to each other; wherein at least one of the air outlets is located on the first side of the air inlet, and at least one of the air outlets is located on the second side of the air inlet; wherein the total area of ​​the air outlets is greater than the area of ​​the air inlet, and the ratio of the total area of ​​the air outlets to the area of ​​the air inlet is in the range of 1.5 to 3.

[0015] In one of the embodiments, the air inlet and the at least two air outlets are disposed on the bottom surface of the shell and are arranged along the circumference of the bottom surface.

[0016] In one of the embodiments, at least one of the air outlets is arranged opposite to the air inlet.

[0017] In one embodiment, the center of any one of the second orthographic projections is offset from the center of the first orthographic projection.

[0018] In one of the embodiments, it also includes: a display panel assembly, which is located on the same side of the fan as the heating device in the height direction of the rice cooker; wherein the center of the fan is located between the center of the display panel assembly and the center of the heating device in the width direction of the rice cooker.

[0019] In one of the embodiments, an axis passing through the center of the fan and perpendicular to the plane where the fan is located does not pass through the display panel assembly and the heating device.

[0020] In one embodiment, the display panel assembly includes a control board and a power board and a connecting bracket for connecting the control board and the power board; wherein the control board, the power board, and the connecting bracket together form an airflow channel; or, the control board and the connecting bracket together form a first airflow channel, and the power board and the connecting bracket together form a second airflow channel.

[0021] In one of the embodiments, the distance between the fan and the heating device in the height direction of the rice cooker ranges from 15 mm to 30 mm.

[0022] In one embodiment, the heating device has a third orthographic projection on the bottom surface of the shell, the third orthographic projection overlaps with the first orthographic projection in the width direction of the rice cooker, and the overlapping area is 1 / 5 of the area of ​​the first orthographic projection.

[0023] In one embodiment, the plurality of inner pots are spaced apart along the length direction of the electric rice cooker, and at least two of the plurality of inner pots have different shapes.

[0024] In one embodiment, the orthographic projection of each inner pot on the bottom surface has at least one lateral projection boundary parallel to the width direction of the rice cooker, and the lateral projection boundaries of the orthographic projections of two adjacent inner pots on the bottom surface are arranged opposite to each other.

[0025] In one embodiment, each of the inner pots has at least one vertical side parallel to the width direction of the rice cooker, the vertical side surfaces of two adjacent inner pots are arranged opposite to each other and the distance between the two vertical side surfaces ranges from 20 mm to 40 mm.

[0026] In a second aspect, the present application provides an electric rice cooker, comprising: a shell, a mounting cavity formed in the shell, the mounting cavity including a plurality of heating cavities, the shell also having openings formed therein that are in one-to-one communication with each of the heating cavities; a plurality of inner pots, each of the inner pots being placed in a corresponding heating cavity through the opening, each of the heating cavities being provided with a heating device to heat the inner pot; and, one and only one fan being provided in the mounting cavity; wherein an air inlet and at least two air outlets corresponding to the fan are provided on the bottom surface of the shell, the air inlet having a second axis located on the bottom surface and passing through the center of the air inlet; wherein the center of at least one of the inner pots and the center of at least one of the air outlets are located on one side of the second axis, and the center of at least one of the inner pots and the center of at least one of the air outlets are located on the other side of the second axis.

[0027] The above-mentioned electric rice cooker, by providing a fan in the inner cavity, can form an airflow between at least two adjacent inner pots to carry the heat out to the outside of the electric rice cooker, thereby effectively solving the problem of temperature crossover between the inner pots; at the same time, the bottom surface is provided with an air inlet and an air outlet corresponding to the fan, and the air outlets are located on opposite sides of the air inlet, which can not only ensure a beautiful shape, but also ensure that the airflow formed by the fan fully traverses the internal space of the electric rice cooker and simultaneously takes away the heat on both sides of the fan, thereby improving the heat dissipation effect and heat dissipation efficiency. In summary, the above-mentioned electric rice cooker can achieve cooling of multiple inner pots in the electric rice cooker by only providing one fan, which simplifies the structure of the multi-pot electric rice cooker and is conducive to controlling the volume and cost of the multi-pot electric rice cooker.

[0028] In a third aspect, the present application provides an electric rice cooker, comprising: a shell, a mounting cavity formed in the shell, the mounting cavity including a plurality of heating cavities, the shell also having openings formed therein that are in one-to-one communication with each of the heating cavities; a plurality of inner pots, each of the inner pots being placed in a corresponding heating cavity through the opening, each of the heating cavities being provided with a heating device to heat the inner pot; and, one and only one fan being provided in the mounting cavity; wherein the shell is provided with an air inlet and at least two air outlets corresponding to the fan, the air inlet having a first side and a second side opposite to each other; wherein the center of at least one of the inner pots and the center of at least one of the air outlets are located on a first side of the air inlet, and the center of at least one of the inner pots and the center of at least one of the air outlets are located on a second side of the air inlet.

[0029] The above-mentioned electric rice cooker, by providing a fan in the inner cavity, can form an airflow between at least two adjacent inner pots to take the heat out to the outside of the electric rice cooker, thereby effectively solving the problem of temperature crossover between the inner pots; at the same time, by providing an air inlet and an air outlet located on opposite sides of the air inlet, it is helpful to ensure that the airflow formed by the fan synchronously takes away the heat on both sides of the fan, thereby improving the heat dissipation effect and heat dissipation efficiency. In summary, the above-mentioned electric rice cooker can achieve cooling of multiple inner pots in the electric rice cooker by only providing one fan, which simplifies the structure of the multi-pot electric rice cooker and is helpful to control the volume and cost of the multi-pot electric rice cooker. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the implementation methods of this specification or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0031] Figure 1 A schematic top view of an embodiment of the present application;

[0032] Figure 2 A side view schematic diagram of an embodiment of the present application;

[0033] Figure 3 for Figure 2 Schematic diagram of the cross section of the AA surface;

[0034] Figure 4 for Figure 1 Schematic diagram of the cross section of the middle BB surface;

[0035] Figure 5 This is a schematic diagram of the distribution of the orthographic projections of the fan and multiple inner pots on the bottom surface of the embodiment of the present application;

[0036] Figure 6 A bottom view schematic diagram of an embodiment of the present application;

[0037] Figure 7 for Figure 1 Schematic diagram of the cross section of the middle CC plane;

[0038] Figure 8 A schematic diagram of a control circuit of a fan according to an embodiment of the present application;

[0039] Fig. 9 It is a partial schematic diagram of the base cavity of the embodiment of the present application;

[0040] Fig.10 This is a schematic diagram of the connection structure between the heating device and the inner pot in the embodiment of the present application;

[0041] Fig.11 It is a partial cross-sectional schematic diagram of the central cover assembly of the embodiment of the present application;

[0042] Fig.12 for Fig.11 A bottom view of the center cover assembly.

[0043] Component number description:

[0044] 100, electric rice cooker, 110, mounting cavity, 111-113, heating cavity;

[0045] 10. housing, 11. bottom surface, 12. air inlet, 13. air outlet;

[0046] 21-23, inner pot, 21'-23', second orthographic projection;

[0047] 30. Heating device;

[0048] 40, fan, 40', first orthographic projection;

[0049] 50. Display panel assembly, 51. Control board, 510. First air flow channel, 52. Power board, 520. Second air flow channel, 53. Connecting bracket;

[0050] AX1, first axis, AX2, second axis. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0055] The main reason for the temperature leakage problem in multi-pot rice cookers is that the heating plate type rice cooker heats itself and then transfers the heat to the inner pot, which will cause a large amount of heat loss; secondly, due to manufacturing errors and other reasons, the inner pot and the heating plate are not fitted together in an ideal gapless manner, which hinders the transfer of heat and aggravates the heat loss. This heat loss not only causes the high temperature rise of the rice cooker, but also causes serious temperature leakage between the inner pots, and also makes the temperature resistance requirements of the injection molded parts and electrical components of the whole machine higher, and also affects the service life of the electrical components.

[0056] In view of this, an embodiment of the present application provides an electric rice cooker, in which only one fan is arranged inside, and combined with the setting orientation of the fan, when the fan is turned on, the hot air between multiple inner pots in the inner cavity of the rice cooker is synchronously discharged to the outside of the rice cooker, thereby effectively dissipating the heat of each inner pot, improving the temperature crossover problem of the multi-pot rice cooker and the problem that when multiple pots are used at the same time, the temperature in the installation cavity is too high, resulting in inaccurate temperature measurement of electrical components, and the like.

[0057] like Figures 1 to 5 As shown, the embodiment of the present application provides an electric rice cooker 100, comprising: a housing 10; a plurality of inner pots, located inside the housing 10; a plurality of heating devices 30, configured to heat the plurality of inner pots; and one and only one fan 40, located inside the housing 10. In which, a mounting cavity 110 is formed inside the housing 10, and the mounting cavity 110 includes a plurality of heating cavities. The housing 10 is also formed with openings corresponding to and connected to each heating cavity. Each inner pot is respectively placed in the corresponding heating cavity through the opening. A heating device 30 is provided in each heating cavity to heat the inner pot, and the fan 40 is provided inside the mounting cavity 110. In which, the aa direction represents the length direction of the electric rice cooker 100, the bb direction represents the width direction of the electric rice cooker 100, and the cc direction represents the height direction of the electric rice cooker 100.

[0058] For example, Figure 3 and Figure 4 As shown, the multiple inner pots include inner pot 21, inner pot 22, and inner pot 23, and the multiple heating chambers include heating chamber 111, heating chamber 112, and heating chamber 113. The inner pot 21 is placed in the heating chamber 111 through an opening, the inner pot 22 is placed in the heating chamber 112 through an opening, and the inner pot 23 is placed in the heating chamber 113 through an opening.

[0059] Optional, such as Fig. 9 and Fig.10 As shown, after removing the inner pot, it can be seen that the rice cooker 100 also includes a heat preservation cover arranged on the outside of the inner pot, a heating plate and a center cover assembly arranged at the bottom of the inner pot, wherein the heating device 30 may include a heating plate and a heating tube arranged in the heating plate, and the heating tube transfers heat to the heating plate after being energized and heated to heat the inner pot, and the center cover assembly passes through the center hole of the heating plate and can float up and down (i.e., in the cc direction). Optionally, each inner pot can be respectively provided with a corresponding heating plate for heating. Optionally, the front of the heating plate can be in full contact with the bottom surface of the inner pot. Optionally, studs are evenly arranged on the back of the heating plate, which can be connected with screws corresponding to the screw holes and studs on the heat preservation cover. Optionally, the heating plate can be assembled as a component with the heat preservation cover, and then assembled to the middle frame. Optionally, the heating plate is an aluminum die-casting structure.

[0060] For example, Figure 3 and Figure 4 As shown, the fan 40 may be in the form of a component, for example, it may include a fan blade, a rotating shaft connected to the fan blade, and a motor, and may also include a bracket for mounting itself to the housing 10. After being turned on, the fan 40 may draw cold air from the environment into each cavity of the electric rice cooker 100 to absorb the heat in the cavity, and discharge it from the air outlet after passing through each cavity, taking away the heat in the electric rice cooker 100, wherein the cavities of the electric rice cooker 100 are interconnected. Optionally, the fan 40 may be arranged at the bottom of the housing 10, so that the formed airflow passes through each component in the cavity of the electric rice cooker 100 at least from bottom to top, thereby taking the heat out to the outside of the electric rice cooker 100.

[0061] For further information, see Figures 3 to 5 The fan 40 has a first orthographic projection 40' on the bottom surface 11 of the shell 10, and the inner pot 21, the inner pot 22, and the inner pot 23 have second orthographic projections 21', 22', and 23' on the bottom surface 11 of the shell 10 respectively; the first orthographic projection 40' has a first axis AX1 located on the bottom surface and passing through the center of the first orthographic projection 40', and the first axis AX1 extends along the width direction (i.e., bb direction) of the rice cooker 100, the center of at least one second orthographic projection is located on one side of the first axis AX1, and the center of at least one second orthographic projection is located on the other side of the first axis AX1.

[0062] For example, Figure 5 As shown, along the length direction (i.e., aa direction) of the electric rice cooker 100, the center of a second orthographic projection 21' is located on the right side of the first axis AX1 of the first orthographic projection 40', the center of another second orthographic projection 23' is located on the left side of the first axis AX1 of the first orthographic projection 40', and the center of another second orthographic projection 22' is on the first axis AX1. Optionally, the first orthographic projection 40' can be circular or square. Optionally, the first axis AX1 passes through the center of the bottom surface 11, which is conducive to making the airflow blown by the fan 40 flow synchronously through the cavities on both sides of the electric rice cooker 100, thereby realizing effective heat dissipation of the entire electric rice cooker 100 by one fan 40.

[0063] For example, see Figure 3 and Figure 5 , multiple inner pots are arranged at intervals along the length direction (i.e., the aa direction) of the electric rice cooker 100, and at least two of the multiple inner pots have different shapes. It can be seen that the second orthographic projection 21', the second orthographic projection 22', and the second orthographic projection 23' are arranged in sequence along the length direction aa direction of the electric rice cooker 100 to reduce the influence of temperature crossover between adjacent inner pots. In addition, the shapes of the inner pots 21 and 23 on the two sides and the inner pot 22 in the middle can be different, so as to reduce the influence of temperature crossover between adjacent inner pots. Figure 5 As shown in the example, the inner pot 21 and the inner pot 22 in the middle of the inner pot can adopt a rectangular inner pot design to fully utilize the space and ensure the volume of the inner pot 22. In addition, the inner pots 21 and 23 on both sides can adopt a D-shaped inner pot design to match the edge contour of the rice cooker 100 while having a certain volume.

[0064] Optional, continue to see Figure 5 , the orthographic projection of each inner pot on the bottom surface 11 has at least one lateral projection boundary parallel to the width direction (i.e., bb direction) of the electric rice cooker 100, and the lateral projection boundaries of the orthographic projections of two adjacent inner pots on the bottom surface 11 are arranged opposite to each other. It can be seen that the second orthographic projection 21' is adjacent to the second orthographic projection 22', and the lateral projection boundary m1 on the second orthographic projection 21' is arranged opposite to the lateral projection boundary m2 on the second orthographic projection 22'; and the second orthographic projection 22' is adjacent to the second orthographic projection 23', and the lateral projection boundary m3 on the second orthographic projection 22' is arranged opposite to the lateral projection boundary m4 on the second orthographic projection 23'. Optionally, the numerical range of the spacing between the two opposite lateral projection boundaries is 20mm to 40mm, for example, it can be any one of 20mm, 25mm, 30mm, 35mm, and 40mm, so as to fully utilize the internal space of the electric rice cooker 100 while reducing the influence of temperature crossover, ensure the volume of the inner pot, and simplify the preparation process.

[0065] Optional, continue to see Figure 3Each inner pot has at least one vertical side parallel to the width direction (i.e., bb direction) of the electric rice cooker 100. The vertical sides of two adjacent inner pots are arranged opposite to each other, and the value range of the spacing H between the two vertical sides is 20 mm to 40 mm. It can be seen that the inner pot 22 has a vertical side on the side facing the inner pot 21 and the inner pot 23 respectively, the inner pot 21 has a vertical side on the side facing the inner pot 22, and the inner pot 23 also has a vertical side on the side facing the inner pot 22. Two adjacent vertical sides on different inner pots are arranged opposite to each other; and the spacing between two adjacent vertical sides on different inner pots can be any one of 20 mm, 25 mm, 30 mm, 35 mm, and 40 mm, so as to fully utilize the internal space of the electric rice cooker 100 while reducing the influence of temperature crossover, ensure the volume of the inner pot, and simplify the preparation process.

[0066] Furthermore, a vertical distance between the center of any second orthographic projection and the first axis AX1 is less than or equal to a preset distance threshold, and at least a portion of the first orthographic projection 40 ′ is located within at least one second orthographic projection.

[0067] For example, Figure 5 As shown, the vertical distance L1 from the center of the second orthographic projection 21' to the first axis AX1 is less than or equal to the preset distance threshold M, the vertical distance L2 from the center of the second orthographic projection 23' to the first axis AX1 is also less than or equal to the preset distance threshold M, and the vertical distance from the center of the second orthographic projection 22' to the first axis AX1 is 0, which is necessarily less than the preset distance threshold M. Optionally, the distance threshold M is less than half of the length of the electric rice cooker 100, wherein the length of the electric rice cooker 100 is greater than or equal to the width of the electric rice cooker 100, so that it is conducive to further ensuring that the fan 40 is located in the middle area of ​​the multiple inner pots, thereby ensuring the heat dissipation efficiency and heat dissipation effect of the electric rice cooker 100.

[0068] Exemplarily, the first orthographic projection 40' overlaps with the second orthographic projection 22' in the shadow area, that is, the first orthographic projection 40' of the shadow area is located within the second orthographic projection 22', indicating that part of the airflow formed by the fan 40 can be directly blown toward the inner pot to quickly dissipate the heat of the inner pot. Optionally, the power of the heating device of the inner pot can be greater than the power of the heating device of other inner pots. Optionally, the first orthographic projection 40' can be entirely located within the second orthographic projection 22'; optionally, the first orthographic projection 40' can also be partially located within the second orthographic projection 21' and / or the second orthographic projection 23', and this application does not limit this.

[0069] The electric rice cooker 100 is provided with a fan 40 in the inner cavity, so that an airflow that takes heat out of the electric rice cooker 100 can be formed at least between two adjacent inner pots, thereby effectively solving the problem of temperature crossover between the inner pots. Meanwhile, only one fan 40 is provided in the electric rice cooker 100, and from the position distribution of the second orthographic projections 21', 22', 23' of each inner pot on the bottom surface 11 and the first orthographic projection 40' of the fan 40 on the bottom surface 11, it can be seen that the fan 40 is located in the middle area of ​​the plurality of inner pots, and at least one inner pot is provided on the opposite sides of the fan 40, respectively, which is conducive to synchronously taking away the heat on the opposite sides of the fan 40 when it is running, thereby improving the heat dissipation efficiency. In addition, at least part of the first orthographic projection 40' is located in at least one second orthographic projection, indicating that at least part of the airflow formed by the fan 40 can be directly blown to the inner pot, which is conducive to further improving the heat dissipation effect. In summary, the electric rice cooker 100 can cool down multiple inner pots in the electric rice cooker 100 through one fan 40, which simplifies the structure of the multi-pot rice cooker and helps to control the volume and cost of the multi-pot rice cooker.

[0070] The various components of the rice cooker provided in the embodiment of the present application and the positional relationship of the components will be described in detail below with reference to the accompanying drawings.

[0071] In some embodiments of the present application, Figure 6 As shown, the housing 10 is provided with an air inlet 12 corresponding to the fan 40 and at least two air outlets 13, the air inlet 12 having a first side and a second side opposite to each other; wherein at least one air outlet 13 is located on the first side of the air inlet 12, and at least one air outlet 13 is located on the second side of the air inlet 12; wherein the total area of ​​the air outlets 13 is greater than the area of ​​the air inlet 12, and the ratio of the total area of ​​the air outlets 13 to the area of ​​the air inlet 12 is in the range of 1.5 to 3. For example, Figure 6 As shown, the bottom surface 11 is formed with an air inlet 12 and three air outlets 13, one of the air outlets 13 is arranged opposite to the air inlet 12 and its area is larger than the area of ​​the air inlet 12, and the other two air outlets 13 are respectively arranged on both sides of the air inlet 12. For example, Figure 6As shown, the air inlet 12 can be a grid formed on the housing 10, and the air outlet 13 can also be a grid formed on the housing 10. When the fan 40 is running, the cold air in the air can be sucked into the housing 10 through the grid at the air inlet 12, and the hot air in the housing 10 can be discharged to the outside of the housing 10 through the grid at the air outlet 13 after the air flow absorbs heat, thereby reducing the temperature of the inner cavity of the electric rice cooker 100. Through the above arrangement, the air outlet 13 is located on the opposite sides of the air inlet 12, so that the air flow formed by the fan 40 can synchronously take away the heat on both sides of the fan 40, which is conducive to ensuring the heat dissipation effect and heat dissipation efficiency; at the same time, the total area of ​​the air outlet 13 is larger than the area of ​​the air inlet 12, which is conducive to the rapid discharge of hot air in the cavity of the electric rice cooker 100 and improves the heat dissipation efficiency. Optionally, the ratio of the total area of ​​the air outlet 13 to the area of ​​the air inlet 12 can be any one of 1.5, 1.8, 2, 2.2, 2.4, 2.6, 2.8, and 3. Optionally, the area of ​​at least one air outlet 13 of the electric rice cooker 100 is larger than the area of ​​the air inlet, so that the hot air in the cavity of the electric rice cooker 100 can be discharged faster, which is conducive to further improving the heat dissipation efficiency. Optionally, the area of ​​multiple air outlets 13 can also be larger than the area of ​​the air inlet 12 to further improve the heat dissipation efficiency.

[0072] For further information, see Figure 6 The air inlet 12 and at least two air outlets 13 are arranged on the bottom surface of the housing 10 and are arranged along the circumference of the bottom surface 10. In this way, the airflow formed by the fan 40 is conducive to fully traversing the internal space of the rice cooker 100 from bottom to top and then from top to bottom, and finally the heat on both sides of the fan 40 is synchronously taken away from each air outlet 13, thereby improving the heat dissipation efficiency and heat dissipation effect.

[0073] For further information, see Figure 6 , at least one air outlet 13 is arranged opposite to the air inlet 12. This is conducive to avoiding the air outlets 13 being concentrated on one side of the air inlet 12, thereby making full use of the bottom area, allowing hot air to be discharged from different directions, and improving heat dissipation efficiency.

[0074] In some embodiments of the present application, Figure 5 As shown, the center of any second orthographic projection is offset from the center of the first orthographic projection 40'. It can be seen that the centers of the second orthographic projections 21', 22', and 23' are all offset from the center of the first orthographic projection 40'. In this way, it is possible to avoid the fan 40 being set directly below the inner pot, so as to avoid the user's misoperation, so that water is not poured into the electric rice cooker 100 without the inner pot, causing the water to flow to the fan 40 and damage the fan 40.

[0075] In some embodiments of the present application, Figure 7As shown, the electric rice cooker 100 further includes: a display panel assembly 50, which is located on the same side of the fan 40 as the heating device 30 in the height direction of the electric rice cooker 100; wherein the center of the fan 40 is located between the center of the display panel assembly 50 and the center of the heating device 30 in the width direction of the electric rice cooker 100. Exemplarily, the display panel assembly 50 may include a display screen to facilitate the user to set the cooking program, and also to distinguish the inner pots of the multi-pot rice cooker. Through the above arrangement, it is beneficial to make the cold air blown out by the fan 40 partially blow toward the heating device 30, and partially blow toward the display panel assembly 50 (indicated by the dotted arrow), so as to take away the heat in the space near the heating device 30, and also take away the heat in the space near the display panel assembly 50, so as to make full use of the function of the fan 40, avoid the additional installation of other heat dissipation devices to dissipate the heat of the display panel assembly 50, and save the installation space in the cavity of the electric rice cooker 100. Optionally, as Figure 3 As shown, the center of the fan 40 is also located on the central axis of the electric rice cooker 100 extending along its width direction. In this way, even with only one fan 40, uniform heat dissipation of the electric rice cooker 100 can be achieved, thereby ensuring the heat dissipation effect of the multi-pot rice cooker.

[0076] Optionally, the axis passing through the center of the fan 40 and perpendicular to the plane where the fan 40 is located does not pass through the display panel assembly 50 and the heating device 30. In this way, it can be avoided that the fan 40 deviates too much toward the display panel assembly 50 or the heating device 30, resulting in a poor heat dissipation effect on one side of the fan 40, that is, the heat dissipation effect of the fan 40 on the display panel assembly 50 and the heating device 30 can be better guaranteed.

[0077] Optional, continue to see Figure 7 The display panel assembly 50 includes a control board 51, a power board 52, and a connecting bracket 53 for connecting the control board 51 and the power board 52; wherein the control board 51, the power board 52, and the connecting bracket 53 together enclose an airflow channel. Through the above arrangement, the airflow (indicated by the dotted arrow) formed by the fan 40 can flow through the first airflow channel 510 and the second airflow channel 520 at the same time, thereby dissipating heat from the control board 51 and the power board 52 at the same time.

[0078] Optionally, the power board 52 is arranged opposite to the control board 51 , and the power board 52 is arranged between the control board 51 and the fan 40 , so that the power board 52 is closer to the fan 40 , thereby ensuring the heat dissipation effect of the fan 40 on the power board 52 .

[0079] Optionally, the control board 51 and the connecting bracket 53 are enclosed to form a first airflow channel 510, and the power board 52 and the connecting bracket 53 are enclosed to form a second airflow channel 520. At this time, the two ends of the connecting bracket 53 are hollowed out and connected to the control board 51 and the power board 52 respectively, which is conducive to improving the overall connection strength of the display panel assembly 50; at the same time, the airflow formed by the fan 40 can also flow through the first airflow channel 510 and the second airflow channel 520 to simultaneously dissipate heat for the control board 51 and the power board 52, thereby ensuring the heat dissipation effect. Optionally, the numerical range of the ratio a of the hollow area of ​​the connecting bracket 53 to the total surface area of ​​the connecting bracket 53 is 0.3<a<1, for example, a can be any one of 0.35, 0.5, 0.65, 0.8, and 0.95, which is conducive to ensuring the contact area of ​​the airflow with the control board 51 and the power board 52 when the airflow flows through the first airflow channel 510 and the second airflow channel 520, thereby ensuring that one fan 40 effectively dissipates heat for the control board 51 and the power board 52.

[0080] Optionally, the center of the fan 40 is located between the center of the heating device 30 and the center of the power board 52, so that uniform heat dissipation can be achieved for the two main heat sources, further ensuring the heat dissipation effect when there is only one fan 40. Optionally, the axis passing through the center of the fan 40 and perpendicular to the plane where the fan 40 is located does not pass through the power board 52 and the heating device 30, so that the fan 40 can be prevented from deviating too much toward the power board 52 or the heating device 30, resulting in poor heat dissipation on one side of the fan 40, thereby further ensuring the heat dissipation effect of the power board 52 and the heating device 30 when there is only one fan 40.

[0081] In some embodiments of the present application, Figure 7 As shown, the numerical range of the distance d between the fan 40 and the heating device 30 in the height direction of the rice cooker 100 is 15 mm to 30 mm, for example, it can be 15 mm, 17 mm, 19 mm, 22 mm, 25 mm, 28 mm, 30 mm. By controlling the distance between the fan 40 and the heating device 30 to meet the above range, the heat lost by the heating device 30 can be taken away well, and the components of the fan 40 will not be damaged by the high heat generated by the heating device 30.

[0082] In some embodiments of the present application, the heating device 30 has a third orthographic projection on the bottom surface of the housing, and the third orthographic projection overlaps with the first orthographic projection in the width direction of the rice cooker 100, and the overlapping area is 1 / 5 of the area of ​​the first orthographic projection. By controlling the size of the overlapping area of ​​the orthographic projections of the heating device 30 and the fan 40 in the bb direction, it is beneficial to stagger the fan 40 and the heating device 30 while ensuring the heat dissipation effect of the fan 40 on the heating device 30.

[0083] In some embodiments of the present application, Figure 3 and Figure 4 As shown, the fan 40 can be fixed on a base by buckling or screwing, and a buckle is provided on the base. The base is buckled to the fan 40 by the buckle, and the buckle is buckled to the upper surface of the fan 40, which is convenient for operation when installing or replacing the fan 40. Further, the fan 40 can also be fixed to the base by screws, and screw holes can be provided at the four corners of the fan bracket. In this way, the connection strength between the fan 40 and the base can be increased by the joint action of the buckle and the screw; and due to the dual action of the buckle and the screw, when the buckle is damaged (for example, the buckle is damaged during installation), there are screws to fix the fan 40 on the base, so as to avoid the fan 40 from being separated from the base when the buckle is damaged, so that the electric rice cooker cannot work normally. Optionally, the diameter or length and width of the fan 40 is within 100mm, the thickness is 15mm to 35mm, and the rotation speed is 1000r / min to 5000r / min. Optionally, the fan 40 uses an axial flow fan to reduce the thickness of the fan 40 and save the installation space in the cavity of the electric rice cooker 100.

[0084] In some embodiments of the present application, Figure 8 As shown, the control circuit of the fan 40 mainly includes a controller J3, a transistor Q1 and a transistor Q2. Among them, the first electrode of the fan 40 is connected to the DC voltage ground terminal; the collector of the transistor Q1 is connected to the second electrode of the fan 40, and the emitter of the transistor Q1 is connected to the DC voltage positive output terminal (+12V); the collector of the transistor Q2 is connected to the base of the transistor Q1, the emitter of the transistor Q2 is connected to the ground terminal of the controller, and the first terminal of the controller is connected to the base of the transistor Q2. The controller can control the operation of the fan 40 through the joint action of the two transistors Q1 and Q2.

[0085] In some embodiments of the present application, Fig.11 and Fig.12 As shown, the center cover assembly includes a heat-conductive cover, an inner card and an outer card disposed inside the heat-conductive cover, and a spring and a rolled strip for binding the wires to make the center cover assembly float up and down. Optionally, the heat-conductive cover is made of aluminum and has two steps. The diameter of the first step is smaller and can extend out of the center hole of the heating plate to abut against the back of the heating plate assembly. The diameter of the second step is larger and cannot extend out of the center hole of the heating plate to abut against the back of the heating plate. One end of the spring abuts against the first step surface inside the heat-conductive cover, and the other end abuts against the middle spring groove hole of the thermal insulation cover, so that the center cover assembly can float up and down. Optionally, as Fig.12 As shown, positioning notches are provided on both sides of the center cover assembly, which can cooperate with the columns on both sides of the center hole of the heating plate to prevent the center cover assembly 60 from shaking and shifting.

[0086] In some embodiments of the present application, a temperature measuring unit is provided in the central cover assembly to collect the temperature of the bottom of the inner pot. On the other hand, the electric rice cooker 100 further includes a controller (not shown) for controlling the operation of the fan 40, the controller is electrically connected to the temperature measuring unit, and at least two operation modes are preset for the fan 40, and different opening temperatures and closing temperatures are set for the fan 40 in the at least two operation modes.

[0087] For example, in one of the operation modes, when the controller determines that there is an inner pot in the quick cooking program, the opening temperature of the fan 40 can be determined to be 110°C and the closing temperature can be determined to be 105°C. Then, when the temperature measuring unit detects that the temperature at the bottom of the inner pot reaches 110°C, the controller controls the fan 40 to turn on, and when the temperature measuring unit detects that the temperature at the bottom of the inner pot drops to 105°C, the controller controls the fan 40 to turn off. For another example, in another operation mode, when the controller determines that there are two or more inner pots in the quick cooking program or no inner pot is in the quick cooking program, the opening temperature of the fan 40 can be determined to be 100°C and the closing temperature can be determined to be 90°C. Then, when the temperature measuring unit detects that the temperature at the bottom of the inner pot reaches 100°C, the controller controls the fan 40 to turn on, and when the temperature measuring unit detects that the temperature at the bottom of the inner pot drops to 90°C, the controller controls the fan 40 to turn off.

[0088] Optionally, during actual operation, the controller may first determine whether only one of the operating programs of all inner pots is a quick cooking program. If the determination result is yes, the fan 40 is turned on at 110°C and turned off at 105°C, and then the air in the cavity of the rice cooker 100 is circulated under the rotation of the fan 40, and the excess hot air is discharged from the air outlet. Figure 3 As shown, the inner pot 22 with a larger volume in the middle can be set to perform fast cooking, while the inner pots 21 and 23 on both sides cannot perform fast cooking. In this case, only whether the inner pot 22 is in the fast cooking program can be determined during operation. If the determination result is yes, the fan 40 is turned on at 110°C and turned off at 105°C. Optionally, the heating power of the heating device 30 of the middle inner pot 22 is 600W, and the heating power of the heating devices 30 of the inner pots 21 and 23 on both sides is 400W. Optionally, the heating device 30 is heated at full power during fast cooking and ordinary cooking. The difference is that during fast cooking, the duty cycle of the heating time of the heating device 30 is larger.

[0089] The present application also provides an electric rice cooker, the structure of which can be referred to as Figure 3 , Figure 4 and Figure 6, comprising: a shell 10; a plurality of inner pots, located inside the shell 10; a plurality of heating devices 30, configured to heat the plurality of inner pots; and one and only one fan 40, located inside the shell 10; wherein an installation cavity 110 is formed inside the shell 10, the installation cavity 110 includes a plurality of heating cavities, and openings are also formed on the shell 10 that are connected to each heating cavity in a one-to-one correspondence, each inner pot is respectively placed in the corresponding heating cavity through the opening, each heating cavity is provided with a heating device 30 to heat the inner pot, and the fan 40 is arranged inside the installation cavity 110; an air inlet 12 and at least two air outlets 13 corresponding to the fan 40 are opened on the bottom surface 11 of the shell 10, and the air inlet 13 has a second axis AX2 located on the bottom surface 11 and passing through the center of the air inlet 12; wherein the center of at least one inner pot and the center of at least one air outlet 13 are located on one side of the second axis AX2, and the center of at least one inner pot and the center of at least one air outlet 13 are located on the other side of the second axis AX2.

[0090] The above-mentioned electric rice cooker, by arranging a fan 40 in the inner cavity, can form an airflow between at least two adjacent inner pots to take the heat out to the outside of the electric rice cooker, thereby effectively solving the problem of temperature crossover between the inner pots; at the same time, the bottom surface 11 is provided with an air inlet 12 and an air outlet 13 corresponding to the fan 40, and the air outlet 13 is located on the opposite sides of the air inlet 12, so that the electric rice cooker can be beautiful in shape, and the airflow formed by the fan 40 can be fully traversed through the internal space of the electric rice cooker and then take away the heat on both sides of the fan 40, thereby improving the heat dissipation effect and heat dissipation efficiency. In summary, the above-mentioned electric rice cooker can realize the cooling of multiple inner pots in the electric rice cooker through a fan 40, simplifying the structure of the multi-pot electric rice cooker, which is conducive to controlling the volume and cost of the multi-pot electric rice cooker.

[0091] In some embodiments of the present application, the total area of ​​the air outlet 13 is larger than the area of ​​the air inlet 12, and the ratio of the total area of ​​the air outlet 13 to the area of ​​the air inlet 12 is in the range of 1.5 to 3. In this way, the hot air in the cavity of the electric rice cooker can be discharged faster, thereby improving the heat dissipation efficiency. Optionally, the ratio of the total area of ​​the air outlet 13 to the area of ​​the air inlet 12 can be any one of 1.5, 1.8, 2, 2.2, 2.4, 2.6, 2.8, and 3. Optionally, the area of ​​at least one air outlet 13 is larger than the area of ​​the air inlet 12, so that the hot air in the cavity of the electric rice cooker 100 can be discharged faster, which is conducive to further improving the heat dissipation efficiency. Optionally, the area of ​​multiple air outlets 13 can be larger than the area of ​​the air inlet 12 to further improve the heat dissipation efficiency.

[0092] In some embodiments of the present application, the air inlet 12 and at least two air outlets 13 are arranged along the circumference of the bottom surface. In this way, the airflow formed by the fan 40 can fully traverse the internal space of the rice cooker from bottom to top and then from top to bottom, and finally the heat on both sides of the fan 40 is synchronously taken away from each air outlet 13, thereby improving the heat dissipation efficiency and heat dissipation effect.

[0093] In some embodiments of the present application, at least one air outlet 13 is arranged opposite to the air inlet 12. This helps to avoid the air outlets 13 being concentrated on one side of the air inlet 12, thereby making full use of the bottom surface area, allowing hot air to be discharged from different directions, and improving heat dissipation efficiency.

[0094] The present application also provides an electric rice cooker, the structure of which can be referred to as Figure 3 , Figure 4 and Figure 6 , comprising: a shell 10; a plurality of inner pots, located inside the shell 10; a heating device 30, configured to heat the plurality of inner pots; and one and only one fan 40, located inside the shell 10; wherein an installation cavity 110 is formed inside the shell 10, the installation cavity 110 includes a plurality of heating cavities, and openings are also formed on the shell 10 that are connected to each heating cavity in a one-to-one correspondence, each inner pot is respectively placed in the corresponding heating cavity through the opening, each heating cavity is provided with a heating device 30 to heat the inner pot, and the fan 40 is arranged inside the installation cavity 110; wherein the shell 10 is provided with an air inlet 12 and at least two air outlets 13 corresponding to the fan 40, and the air inlet 12 has a first side and a second side opposite to each other; wherein the center of at least one inner pot and the center of at least one air outlet 13 are located on the first side of the air inlet 12, and the center of at least one inner pot and the center of at least one air outlet 13 are located on the second side of the air inlet 12.

[0095] The electric rice cooker, by providing a fan 40 in the inner cavity, can form an airflow between at least two adjacent inner pots to take the heat out to the outside of the electric rice cooker, thereby effectively solving the problem of temperature crossover between the inner pots; at the same time, by providing an air inlet 12 and an air outlet 13 located on opposite sides of the air inlet 12, it is helpful to ensure that the airflow formed by the fan 40 synchronously takes away the heat on both sides of the fan 40, thereby improving the heat dissipation effect and heat dissipation efficiency. In summary, the electric rice cooker can achieve cooling of multiple inner pots in the electric rice cooker through a fan 40, simplifying the structure of the multi-pot electric rice cooker, and helping to control the volume and cost of the multi-pot electric rice cooker.

[0096] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0097] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An electric rice cooker, characterized in that: include: A housing, wherein a mounting cavity is formed in the housing, wherein the mounting cavity includes a plurality of heating cavities, and the housing is further provided with openings corresponding to and communicating with the heating cavities one by one; A plurality of inner pots, each of the inner pots is placed in a corresponding heating cavity through the opening, and each of the heating cavities is provided with a heating device to heat the inner pot; as well as, There is only one fan, which is arranged in the installation cavity; The fan has a first orthographic projection on the bottom surface of the shell, and the inner pot has a second orthographic projection on the bottom surface of the shell; the first orthographic projection has a first axis located on the bottom surface and passing through the center of the first orthographic projection, and the first axis extends along the width direction of the electric rice cooker; the center of at least one of the second orthographic projections is located on one side of the first axis, and the center of at least one of the second orthographic projections is located on the other side of the first axis; Wherein, a vertical distance between a center of any second orthographic projection and the first axis is less than or equal to a preset distance threshold, and at least a portion of the first orthographic projection is located within at least one of the second orthographic projections.

2. The electric rice cooker according to claim 1, characterized in that: The distance threshold is less than half of the length of the electric rice cooker, wherein the length of the electric rice cooker is greater than or equal to the width of the electric rice cooker.

3. The electric rice cooker according to claim 1 or 2, characterized in that: The first axis passes through the center of the bottom surface of the housing.

4. The electric rice cooker according to claim 1, characterized in that: The housing is provided with an air inlet corresponding to the fan and at least two air outlets, and the air inlet has a first side and a second side opposite to each other; Wherein, at least one of the air outlets is located on a first side of the air inlet, and at least one of the air outlets is located on a second side of the air inlet; The total area of ​​the air outlets is greater than the area of ​​the air inlet, and the ratio of the total area of ​​the air outlets to the area of ​​the air inlet is in the range of 1.5 to 3.

5. The electric rice cooker according to claim 4, characterized in that: The air inlet and the at least two air outlets are arranged on the bottom surface of the shell and along the circumference of the bottom surface.

6. The electric rice cooker according to claim 5, characterized in that: At least one of the air outlets is arranged opposite to the air inlet.

7. The electric rice cooker according to claim 1, characterized in that: The center of any one of the second orthographic projections is offset from the center of the first orthographic projection.

8. The electric rice cooker according to claim 1 or 7, characterized in that: Also includes: A display panel assembly is located on the same side of the fan as the heating device in the height direction of the electric rice cooker; Wherein, the center of the fan is located between the center of the display panel assembly and the center of the heating device in the width direction of the rice cooker.

9. The electric rice cooker according to claim 8, characterized in that An axis passing through the center of the fan and perpendicular to the plane where the fan is located does not pass through the display panel assembly and the heating device.

10. The electric rice cooker according to claim 8, characterized in that The display panel assembly includes a control board and a power board and a connecting bracket for connecting the control board and the power board; Wherein, the control board, the power board and the connecting bracket together enclose an air flow channel; or, The control board and the connecting bracket are enclosed to form a first airflow channel, and the power board and the connecting bracket are enclosed to form a second airflow channel.

11. The electric rice cooker according to claim 1, characterized in that: The numerical range of the distance between the fan and the heating device in the height direction of the rice cooker is 15 mm to 30 mm.

12. The electric rice cooker according to claim 1, characterized in that: The heating device has a third orthographic projection on the bottom surface of the shell, and the third orthographic projection overlaps with the first orthographic projection in the width direction of the rice cooker, and the overlapping area is 1 / 5 of the area of ​​the first orthographic projection.

13. The electric rice cooker according to claim 1, characterized in that The plurality of inner pots are arranged at intervals along the length direction of the electric rice cooker, and at least two of the plurality of inner pots have different shapes.

14. The electric rice cooker according to claim 13, characterized in that: The orthographic projection of each inner pot on the bottom surface has at least one lateral projection boundary parallel to the width direction of the electric rice cooker, and the lateral projection boundaries of the orthographic projections of two adjacent inner pots on the bottom surface are arranged opposite to each other.

15. The electric rice cooker according to claim 13, characterized in that: Each inner pot has at least one vertical side parallel to the width direction of the electric rice cooker, the vertical side of two adjacent inner pots are arranged opposite to each other and the distance between the two vertical side is in the range of 20 mm to 40 mm.

16. An electric rice cooker, characterized in that: include: A housing, wherein a mounting cavity is formed in the housing, wherein the mounting cavity includes a plurality of heating cavities, and the housing is further provided with openings corresponding to and communicating with the heating cavities one by one; A plurality of inner pots, each of the inner pots is placed in a corresponding heating cavity through the opening, and each of the heating cavities is provided with a heating device to heat the inner pot; as well as, There is only one fan, which is arranged in the installation cavity; The bottom surface of the housing is provided with an air inlet corresponding to the fan and at least two air outlets, and the air inlet has a second axis located on the bottom surface and passing through the center of the air inlet; Among them, the center of at least one of the inner pots and the center of at least one of the air outlets are located on one side of the second axis, and the center of at least one of the inner pots and the center of at least one of the air outlets are located on the other side of the second axis.

17. An electric rice cooker, characterized in that: include: A housing, wherein a mounting cavity is formed in the housing, wherein the mounting cavity includes a plurality of heating cavities, and the housing is further provided with openings corresponding to and communicating with the heating cavities one by one; A plurality of inner pots, each of the inner pots is placed in a corresponding heating cavity through the opening, and each of the heating cavities is provided with a heating device to heat the inner pot; as well as, There is only one fan, which is arranged in the installation cavity; The housing is provided with an air inlet corresponding to the fan and at least two air outlets, and the air inlet has a first side and a second side opposite to each other; Among them, the center of at least one of the inner pots and the center of at least one of the air outlets are located on the first side of the air inlet, and the center of at least one of the inner pots and the center of at least one of the air outlets are located on the second side of the air inlet.

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