Cushion frame and electric stewpot

Abstract

The utility model relates to a cushion frame and an electric stewpot, the cushion frame comprises a cushion plate and supporting legs arranged on the lower side of the cushion plate, the outer edge of the cushion plate is provided with a second blocking rib extending downwards, and the second blocking rib is provided with a plurality of first bubble breaking channels. Bubbles below the base plate flow towards the outer edge of the base plate under the action of buoyancy of the bubbles, the bubbles flowing to the outer edge of the base plate are blocked by the second blocking ribs, so that the bubbles escape through the first bubble breaking channel, and when passing through the first bubble breaking channel, the bubbles are extruded and broken into smaller bubbles; therefore, noise and impact force generated when bubbles emerge from the water surface and are broken can be reduced. Besides, as the first bubble breaking channel is arranged on the second blocking rib, the bubbles escape from the side face of the cushion frame, the bottom face of the stew cup cannot block the bubbles escaping from the first bubble breaking channel, and the bubbles can be prevented from being polymerized again on the bottom face of the stew cup.

Description

Technical Field

[0001] The present application relates to the technical field of cooking utensils, and in particular to a support frame and an electric stew pot. Background Art

[0002] When the electric stew pot is working, a large number of small bubbles will be generated on the surface of the heating plate. The bubbles will be blocked by the support and the stew pot during their rising process. The small bubbles will aggregate to form large bubbles and then break after floating to the surface, producing a loud bubble breaking sound. At the same time, the impact force generated by the bubble breaking acts on the stew pot, causing the stew pot to produce shaking noise. At present, some support racks are set as a whole pad, and bubbles are easy to aggregate under the bottom plate to form large bubbles, so that the electric stew pot is noisy during operation. Utility Model Content

[0003] Based on this, it is necessary to provide a support frame and an electric stew pot that can reduce noise.

[0004] The present application provides a pad frame, comprising a pad plate and a support leg arranged at the lower side of the pad plate, the outer edge of the pad plate is provided with a second barrier rib extending downward, and the second barrier rib is provided with a plurality of first bubble crushing channels.

[0005] The pad frame provided by the present application is used in an electric stew pot for water-insulated stewing. Since the outer edge of the pad is provided with a second rib extending downward, and a plurality of first bubble-breaking channels are provided on the second rib, the bubbles under the pad flow toward the outer edge of the pad due to their own buoyancy, and the bubbles flowing to the outer edge of the pad are blocked by the second rib, so that the bubbles escape through the first bubble-breaking channel. When passing through the first bubble-breaking channel, the bubbles are squeezed and broken into smaller bubbles. Since the larger the bubbles that float to the surface, the greater the noise, and the greater the impact force generated by the bubble breakage, the present application breaks the bubbles into smaller bubbles through the first bubble-breaking channel, which can reduce the noise and impact force generated by the bubbles floating to the surface and breaking. In addition, since the first bubble-breaking channel is provided on the second rib, the bubbles escape from the side of the pad frame, so that the bottom surface of the stew pot will not block the bubbles escaping from the first bubble-breaking channel, thereby preventing the bubbles from re-aggregating on the bottom surface of the stew pot.

[0006] In one embodiment, the second barrier rib is configured as a continuous annular barrier rib, and the first bubble breaking channel is configured as a through hole penetrating the second barrier rib.

[0007] In this way, the second baffle can effectively intercept the bubbles and prevent them from escaping directly from the outer edge of the pad, and the structure is very simple and easy to process.

[0008] In one of the embodiments, the second blocking rib includes a plurality of blocks, the plurality of blocks are distributed along the circumference of the pad, there are gaps between adjacent blocks, and the gaps constitute the first bubble breaking channel.

[0009] Thus, the second baffle rib structure is very simple and easy to process.

[0010] In one embodiment, the edge of the second baffle rib is wavy or serrated.

[0011] Thus, the wave units or serrated units of the second baffle rib can form the first bubble-breaking channel. The first bubble-breaking channel arranged in this way has a good bubble-breaking effect on bubbles, and has a simple structure and is easy to process.

[0012] In one embodiment, a guiding surface is provided on the lower surface of the backing plate, and the guiding surface is arranged in a rising shape from the center of the backing plate to the peripheral edges.

[0013] Thus, the bubbles below the backing plate can smoothly flow to the outer edge of the backing plate under the guidance of the guiding surface, and thus can escape from the first bubble-breaking channel.

[0014] In one embodiment, a plurality of second bubble-breaking channels penetrating the upper and lower surfaces are provided in the area of the backing plate close to the outer edge.

[0015] Thus, the bubbles guided by the guiding surface to the outer edge of the backing plate can also escape through the second bubble-breaking channels. In this way, the number of bubble-breaking channels is larger, and has a better bubble-breaking effect on bubbles, so that the cushion rack has a better noise reduction effect.

[0016] In one embodiment, the supporting feet include a first supporting foot connected to the lower end of the second baffle rib; and / or, the supporting feet include a second supporting foot connected to the lower surface of the backing plate.

[0017] Thus, the first supporting foot does not affect the flow of bubbles on the guiding surface, and the first supporting foot arranged at this position can stably support the backing plate, and thus stably support the stew pot. The second supporting foot does not affect the flow of bubbles on the guiding surface, and the second supporting foot arranged at this position can stably support the backing plate, and thus stably support the stew pot.

[0018] In one embodiment, a convection hole and a first baffle rib are provided in the central area of the backing plate, the first baffle rib surrounds the convection hole, and the first baffle rib protrudes downward relative to the lower surface of the backing plate.

[0019] When the electric slow cooker is working, a hot area with a relatively high water temperature is formed near the outer edge of the cushion plate, while a cold area with a relatively low temperature is formed in the area between the lower part of the stewing pot and the upper part of the cushion plate. Due to the intense activity of water molecules in the hot area, the density is relatively small, and it will flow upward. The water in the cold area will flow downward due to its relatively large density. By setting convection holes, the water in the cold area can flow through the convection holes to the lower part of the cushion plate and flow toward the outer edge of the cushion plate, so that the cold area and the hot area are interconnected to form a circulating heat convection, enabling the water body in the heating cavity to be heated faster and improving the overall thermal efficiency of the electric slow cooker. By setting the first baffle rib, air bubbles can be intercepted to prevent the air bubbles under the cushion plate from directly escaping from the convection holes.

[0020] In one embodiment, the bottom end of the first baffle rib is higher than the bottom end of the support leg.

[0021] In this way, when the cushion rack is placed in the heating cavity of the electric slow cooker, the first baffle rib does not contact the heating plate, so that the water flow flowing down from the convection holes can flow over the first baffle rib from below and flow toward the outer edge of the cushion plate, ensuring the heat convection cycle in the heating cavity.

[0022] This application also provides an electric slow cooker, including: a base, a stewing pot, an upper cover, and the above-mentioned cushion rack. A heating cavity is provided in the base, a heating plate is provided on the bottom wall of the heating cavity, the cushion rack is arranged in the heating cavity, the stewing pot is placed on the cushion rack, and the upper cover covers the base to cover the heating cavity.

[0023] By setting the above-mentioned cushion rack, the electric slow cooker can use the guiding surface to guide the air bubbles under the cushion plate to flow toward the outer edge of the cushion plate, and then the air bubbles escape through the first bubble-breaking channel. When passing through the first bubble-breaking channel, the air bubbles are squeezed and broken into smaller air bubbles, so that the noise and impact force generated by the air bubbles floating to the water surface and breaking can be reduced. In addition, since the first bubble-breaking channel is arranged on the second baffle rib, the air bubbles escape from the side of the cushion rack, so that the bottom surface of the stewing pot will not block the air bubbles escaping from the first bubble-breaking channel, thus avoiding the re-aggregation of air bubbles on the bottom surface of the stewing pot.

[0024] In one embodiment, the central area of the cushion plate is provided with convection holes and a first baffle rib. The first baffle rib surrounds the convection holes, and the first baffle rib protrudes downward relative to the lower surface of the cushion plate. The heating plate includes a plate body and a heating tube arranged below the plate body. The orthographic projection of the heating tube on the horizontal plane is located outside the orthographic projection of the first baffle rib on the horizontal plane.

[0025] In this way, when a large number of air bubbles generated by the heating tube heating the water body rise, they are located outside the first baffle rib, so that the first baffle rib can block the air bubbles and prevent the air bubbles from escaping from the convection holes. Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0027] Figure 1 Exploded view of an electric slow cooker according to an embodiment of the present application;

[0028] Figure 2 Cross-sectional view of an electric slow cooker according to an embodiment of the present application;

[0029] Figure 3 Stereogram of the back side view of a pad rack according to an embodiment of the present application;

[0030] Figure 4 Stereogram of the front side view of a pad rack according to an embodiment of the present application;

[0031] Figure 5 Cross-sectional view of a pad rack according to an embodiment of the present application;

[0032] Figure 6 Stereogram of the back side view of a pad rack according to another embodiment of the present application;

[0033] Figure 7 For Figure 6 Stereogram of the front side view of the shown pad rack;

[0034] Figure 8 Stereogram of the back side view of a pad rack according to yet another embodiment of the present application;

[0035] Figure 9 For Figure 8 Stereogram of the front side view of the shown pad rack.

[0036] Reference numerals: 100, base; 110, heating chamber; 120, hot zone; 130, cold zone; 200, stewing pot; 300, upper cover; 400, heating plate; 410, plate body; 420, heating tube; 500, pad rack; 10, backing plate; 11, flow guiding surface; 13, convection hole; 20, support leg; 21, first support leg; 22, second support leg; 30, first retaining rib; 40, second retaining rib; 41, retaining block; 51, first bubble breaking channel; 52, second bubble breaking channel; 60, support rib. Detailed implementation manners

[0037] To make the above objects, features, and advantages of the present application more apparent and understandable, the following describes the specific embodiments of the present application in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0038] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present application are only for the purpose of illustration and do not represent the only implementation manner.

[0039] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0040] In the present application, unless otherwise clearly defined and limited, the first feature may be in direct contact with the second feature "on" or "under" the second feature, or the first feature and the second feature may be in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature has a lower horizontal height than the second feature.

[0041] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more of the related listed items.

[0042] Please refer to Figures 1 to 5, this application provides a pad rack 500, which includes a base plate 10 and feet 20 provided on the lower side of the base plate 10. A second retaining rib 40 extending downward is provided on the outer edge of the base plate 10, and a plurality of first bubble-breaking channels 51 are provided on the second retaining rib 40. Thus, for the pad rack 500 provided in this application, when used in an electric slow cooker for waterless stewing, since a second retaining rib 40 extending downward is provided on the outer edge of the base plate 10 and a plurality of first bubble-breaking channels 51 are provided on the second retaining rib 40, the bubbles below the base plate 10 flow toward the outer edge of the base plate 10 due to their own buoyancy. The bubbles flowing to the outer edge of the base plate 10 are blocked by the second retaining rib 40, so that the bubbles escape through the first bubble-breaking channels 51. When passing through the first bubble-breaking channels 51, the bubbles are squeezed and broken into smaller bubbles. Since the larger the bubbles floating to the water surface, the greater the noise and the greater the impact force generated by the bubble breaking, this application breaks the bubbles into smaller bubbles through the first bubble-breaking channels 51, which can reduce the noise and impact force generated by the bubbles floating to the water surface and breaking. In addition, since the first bubble-breaking channels 51 are provided on the second retaining rib 40, the bubbles escape from the side of the pad rack 500, so that the bottom surface of the stewing pot 200 will not block the bubbles escaping from the first bubble-breaking channels 51, thus avoiding the bubbles from aggregating again on the bottom surface of the stewing pot 200.

[0043] Further, a guiding surface 11 is provided on the lower surface of the base plate 10, and the guiding surface 11 is arranged in an upward shape from the center of the base plate 10 to the outer edge. Thus, the bubbles below the base plate 10 can smoothly flow toward the outer edge of the base plate 10 under the guidance of the guiding surface 11, and thus can escape from the first bubble-breaking channels 51.

[0044] Please refer to Figure 2 , S represents the water level line; P represents the bubble path; Q represents the heat convection path. Since a large number of bubbles will be generated in the water body when the electric slow cooker is working, and the bubbles carry a large amount of heat energy, under the guiding action of the guiding surface 11, the bubbles below the base plate 10 will flow upward along the guiding surface 11 to the outer edge of the base plate 10. At the same time, the water flow below the base plate 10 will flow toward the outer edge of the base plate 10, so that a hot area 120 with a higher water temperature is formed near the outer edge of the base plate 10, while a cold area 130 with a lower temperature is formed in the area between the lower part of the stewing pot 200 and the upper part of the base plate 10. Thus, two areas with obvious temperature differences are formed in the water body of the electric slow cooker. Since the water molecules in the hot area 120 are active and have a smaller density, they will flow upward, and the water in the cold area 130 will flow downward due to its relatively larger density. In an embodiment, a convection hole 13 is provided in the central area of the base plate 10. Thus, the water in the cold area 130 can flow to the lower side of the base plate 10 through the convection hole 13 and flow toward the outer edge of the base plate 10, so that the cold area 130 and the hot area 120 are interconnected to form a circulating heat convection, enabling the water body in the heating cavity 110 to be heated faster and improving the overall thermal efficiency of the electric slow cooker.

[0045] Further, please refer to Figure 3 andFigure 5 The guide surface 11 is an inclined surface, a conical surface or an arc surface. In this way, under the guiding effect of the guide surface 11, the water flow and bubbles under the pad 10 are easy to flow to the outer edge of the pad 10, thereby facilitating the formation of a thermal convection cycle, and the bubbles can escape outward from the outer edge of the pad 10, reducing the occurrence of bubbles aggregating on the lower surface of the pad 10 and colliding with the lower surface of the pad 10.

[0046] For further information, see Figure 5 , the vertical section of the guide surface 11 is a first oblique line, the angle between the first oblique line and the horizontal plane is γ1, and γ1 is 1° to 30°, so that the guide surface 11 is conducive to guiding the bubbles to the outer edge of the pad 10. Specifically, γ1 can be 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19°, 20°, 21°, 22°, 23°, 24°, 25°, 26°, 27°, 28°, 29°, 30°, or any other value within the range of 1° to 30°.

[0047] Furthermore, the upper surface of the pad 10 is configured to be in a shape that matches the guide surface 11, so that the pad 10 rises from the center to the outer edge. In this way, the water flow above the pad 10 easily flows to the center of the pad 10, thereby facilitating the formation of a thermal convection cycle.

[0048] The upper surface of the pad 10 is arranged parallel to the guide surface 11 , which is beneficial to heat convection circulation and the structure of the pad 10 is also very simple.

[0049] For further information, see Figure 2 , Figure 3 and Figure 5 A first baffle 30 is provided in the central area of the pad 10. The first baffle 30 is arranged around the convection hole 13. The first baffle 30 protrudes downward relative to the lower surface of the pad 10. In this way, bubbles can be intercepted by setting the first baffle 30 to prevent bubbles under the pad 10 from escaping directly from the convection hole 13.

[0050] For further information, see Figure 5 The height of the first retaining rib 30 protruding from the lower surface of the pad 10 is H1, and H1 is 2 mm to 15 mm. In this way, it can be ensured that the first retaining rib 30 can intercept the bubbles on the lower surface of the pad 10 and prevent the bubbles from escaping from the convection holes 13 over the first retaining rib 30. Specifically, H1 can be 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, or any other value within the range of 2 mm to 15 mm.

[0051] For further information, see Figure 5, the height H2 of the second baffle rib 40 protruding from the lower surface of the backing plate 10 is 2 mm to 15 mm. In this way, it can be ensured that the second baffle rib 40 can intercept the air bubbles on the lower surface of the backing plate 10, preventing the air bubbles from directly escaping from the outer edge of the backing plate 10 and affecting the bubble-breaking efficiency. Specifically, H2 can be 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, or any other value within the range of 2 mm to 15 mm. Since partial aggregation of air bubbles occurs when flowing through the first flow guiding surface 11, preferably H2 ≥ H1 to ensure that the air bubbles do not directly escape from the outer edge of the backing plate 10, thereby ensuring the bubble-breaking effect of the first bubble-breaking channel 51 on the air bubbles.

[0052] Please refer to Figure 3 and Figure 4 , in one embodiment, the second baffle rib 40 is arranged as a continuous annular baffle rib, and the first bubble-breaking channel 51 is arranged as a through hole penetrating the second baffle rib 40. In this way, the second baffle rib 40 can effectively intercept the air bubbles, preventing the air bubbles from directly escaping from the outer edge of the backing plate 10, and the structure is very simple and easy to process.

[0053] Please refer to Figure 6 and Figure 7 , in another embodiment, the second baffle rib 40 includes a plurality of blocks 41, the plurality of blocks 41 are distributed along the circumferential direction of the backing plate 10, and there are gaps between adjacent blocks 41, and the gaps form the first bubble-breaking channel 51. In this way, the structure of the second baffle rib 40 is very simple and easy to process.

[0054] Furthermore, the edge of the second baffle rib 40 is wavy or serrated. In this way, the first bubble-breaking channel 51 can be formed between the wave units or serration units of the second baffle rib 40. The first bubble-breaking channel 51 arranged in this way has a good bubble-breaking effect on the air bubbles, and the structure is simple and easy to process.

[0055] Further, the stoppers 41 are semi-circular, semi-elliptical, trapezoidal or triangular. In this way, the gaps between adjacent stoppers 41 can form the first bubble-breaking channels 51, which have a good bubble-breaking effect on the bubbles. It can be understood that for the second baffle rib 40 with a wavy edge, the outer shape of each stopper 41 is semi-circular. For the second baffle rib 40 with a serrated edge, the outer shape of each stopper 41 is triangular. In this embodiment, the multiple stoppers 41 are connected in sequence, but it is not limited thereto. In other embodiments, the multiple stoppers 41 can also be arranged at intervals. In this way, the gaps between adjacent stoppers 41 can constitute the first bubble-breaking channels 51, and the structure is also simple. It can be understood that in order to ensure the bubble-breaking effect, the gaps between adjacent stoppers 41 should neither be too large to avoid being unable to squeeze the bubbles, nor be too small to avoid the bubbles passing through the gaps and causing multiple bubbles to aggregate on one side of the multiple stoppers 41 close to the guiding surface 11. When the multiple stoppers 41 are arranged at intervals, the shape of the stoppers 41 can be square, or semi-circular, semi-elliptical, trapezoidal or triangular as described above.

[0056] Further, please refer to Figure 8 and Figure 9 In one embodiment, a plurality of second bubble-breaking channels 52 penetrating the upper and lower surfaces are provided in the region of the backing plate 10 close to the outer edge. In this way, the bubbles diverted to the outer edge of the backing plate 10 by the guiding surface 11 can also escape through the second bubble-breaking channels 52. In this way, the number of bubble-breaking channels is larger, and the bubble-breaking effect on the bubbles is better, so that the cushion frame 500 has a better noise reduction effect.

[0057] Please refer to Figure 4 , Figure 7 and Figure 9 On the upper surface of the backing plate 10, a plurality of support ribs 60 are provided at intervals. The support ribs 60 are used to support the stew pot 200. Since the plurality of support ribs 60 are arranged at intervals, the support ribs 60 do not affect the convection of the water flow on the upper side of the backing plate 10. In this embodiment, the plurality of support ribs 60 are circumferentially arranged on the upper surface of the backing plate 10. In this way, the plurality of support ribs 60 can stably support the stew pot 200.

[0058] Please refer to Figure 3 In one embodiment, the support leg 20 includes a first support leg 21 connected to the lower end of the second baffle rib 40. In this way, the first support leg 21 does not affect the flow of the bubbles on the guiding surface 11, and the first support leg 21 arranged at this position can stably support the backing plate 10, thereby stably supporting the stew pot 200.

[0059] Please refer to Figure 6 In another embodiment, the support leg 20 includes a second support leg 22 connected to the lower surface of the backing plate 10. In this way, the second support leg 22 does not affect the flow of the bubbles on the guiding surface 11, and the second support leg 22 arranged at this position can stably support the backing plate 10, thereby stably supporting the stew pot 200.

[0060] As Figure 3 shown, the supporting feet 20 may simultaneously include a first supporting foot 21 and a second supporting foot 22 connected to the lower end of the second retaining rib 40. In this way, the cushion rack 500 can support a stew pot 200 with a greater weight, the cushion plate 10 is not easily deformed, and the support for the stew pot 200 is more stable.

[0061] Please refer to Figure 1 and Figure 2 , the present application also provides an electric stew pot, including: a base 100, a stew pot 200, an upper cover 300, and the above-mentioned cushion rack 500. A heating cavity 110 is provided in the base 100, a heating plate 400 is provided on the bottom wall of the heating cavity 110, the cushion rack 500 is arranged in the heating cavity 110, the stew pot 200 is placed on the cushion rack 500, and the upper cover 300 covers the base 100 to cover the heating cavity 110. In this way, by arranging the above-mentioned cushion rack 500, the electric stew pot can utilize the flow guiding surface 11 to guide the bubbles below the cushion plate 10 to the outer edge of the cushion plate 10, and then the bubbles escape through the first bubble breaking channel 51. When passing through the first bubble breaking channel 51, the bubbles are squeezed and broken into smaller bubbles, thereby reducing the noise and impact force generated by the bubbles floating out of the water surface and breaking. In addition, since the first bubble breaking channel 51 is arranged on the second retaining rib 40, the bubbles escape from the side of the cushion rack 500, so the bottom surface of the stew pot 200 will not block the bubbles escaping from the first bubble breaking channel 51, thereby avoiding the bubbles from aggregating again on the bottom surface of the stew pot 200.

[0062] Further, please refer to Figure 2 , the heating plate 400 includes a plate body 410 and a heating tube 420 arranged below the plate body 410. The orthographic projection of the heating tube 420 on the horizontal plane is located outside the orthographic projection of the first retaining rib 30 on the horizontal plane. In this way, when a large number of bubbles generated by the heating tube 420 heating the water body rise, they are located outside the first retaining rib 30, so that the first retaining rib 30 can block the bubbles and prevent the bubbles from escaping through the convection holes 13.

[0063] Further, the bottom end of the first retaining rib 30 is higher than the bottom end of the supporting feet 20. In this way, when the cushion rack 500 is placed in the heating cavity 110, the first retaining rib 30 does not contact the heating plate 400, so that the water flow flowing down from the convection holes 13 can flow over the first retaining rib 30 from below to the outer edge of the cushion plate 10, ensuring the heat convection cycle in the heating cavity 110.

[0064] Further, please refer to Figure 2The height difference between the bottom end of the first baffle rib 30 and the bottom end of the support leg 20 is L1, and L1 is 3 mm to 20 mm. It can be understood that if the height difference between the bottom end of the first baffle rib 30 and the bottom end of the support leg 20 is L1, then when the cushion rack 500 is placed in the heating cavity 110, the distance between the bottom end of the first baffle rib 30 and the top surface of the heating plate 400 is also L1. If this distance L1 is too small, the water flow flowing downward from the convection hole 13 is difficult to flow from below the first baffle rib 30 to the side wall of the heating cavity 110, thus affecting the thermal convection cycle; if this distance L1 is too large, the cushion rack 500 will occupy a relatively large space, resulting in the height of the stewing pot 200 not being able to be set too high or the need to increase the height dimension of the electric stew pot. In this embodiment, L1 is 3 mm to 20 mm, which neither affects the thermal convection cycle of the water flow nor has too much impact on the overall dimensions of the stewing pot 200 or the electric stew pot. Specifically, L1 can be 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, or any other arbitrary value within the range of 3 mm to 20 mm.

[0065] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered as the scope recorded in this specification.

[0066] The above-described embodiments merely represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but should not be construed as a limitation on the scope of the patented application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A cushion rack, characterized in that, It includes a backing plate (10) and feet (20) provided on the lower side of the backing plate (10). A second retaining rib (40) extending downward is provided on the outer edge of the backing plate (10), and a plurality of first bubble-breaking channels (51) are provided on the second retaining rib (40).

2. The underframe according to claim 1, wherein, The second retaining rib (40) is arranged as a continuous circular retaining rib, and the first bubble-breaking channels (51) are arranged as through holes penetrating the second retaining rib (40).

3. The pad rack according to claim 1, characterized in that, The second retaining rib (40) includes a plurality of retaining blocks (41). The plurality of retaining blocks (41) are distributed along the circumferential direction of the backing plate (10), and there are gaps between adjacent retaining blocks (41), and the gaps form the first bubble-breaking channels (51).

4. The mounting bracket according to claim 3, characterized in that, The edge of the second retaining rib (40) is wavy or serrated.

5. The pad rack according to claim 1, characterized in that, A guiding surface (11) is provided on the lower surface of the backing plate (10), and the guiding surface (11) is arranged to rise from the center of the backing plate (10) towards the outer edge.

6. The underframe according to claim 1, characterized in that, A plurality of second bubble-breaking channels (52) penetrating the upper and lower surfaces are provided in the area of the backing plate (10) close to the outer edge.

7. The pad rack according to claim 1, characterized in that, The feet (20) include a first foot (21) connected to the lower end of the second retaining rib (40); and / or, the feet (20) include a second foot (22) connected to the lower surface of the backing plate (10).

8. The pad rack according to claim 1, characterized in that, A convection hole (13) and a first retaining rib (30) are provided in the central area of the backing plate (10). The first retaining rib (30) surrounds the convection hole (13), and the first retaining rib (30) protrudes downward relative to the lower surface of the backing plate (10).

9. The cushion rack according to claim 8, characterized in that, The bottom end of the first retaining rib (30) is higher than the bottom end of the feet (20).

10. An electric slow cooker, characterized in that, It includes: A base (100), a stew pot (200), an upper cover (300), and a pad rack (500) as described in claim 1. A heating cavity (110) is provided in the base (100), a heating plate (400) is provided on the bottom wall of the heating cavity (110), the pad rack (500) is arranged in the heating cavity (110), the stew pot (200) is placed on the pad rack (500), and the upper cover (300) covers the base (100) to cover the heating cavity (110).

11. The electric slow cooker according to claim 10, characterized in that, A convection hole (13) and a first retaining rib (30) are provided in the central area of the backing plate (10). The first retaining rib (30) surrounds the convection hole (13), and the first retaining rib (30) protrudes downward relative to the lower surface of the backing plate (10), The heating plate (400) includes a plate body (410) and a heating tube (420) provided below the plate body (410). The orthographic projection of the heating tube (420) on the horizontal plane is located outside the orthographic projection of the first retaining rib (30) on the horizontal plane.

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