Heating disc assembly and food processor
By combining the dual heating element design and blade rotation in the heating plate assembly of the cooking machine, the problem of uneven heating is solved, and uniform heating of food and a safe and reliable cooking process are achieved.
Patent Information
- Application Number
- CN202422708321.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-06
AI Technical Summary
The heating plate components of the existing cooking machine have uneven heating problems, resulting in poor cooking results in food, which may damage the material of the container and cause safety hazards.
The design of double heating parts is adopted, the first heating part is arranged on the side wall of the disc body, and the second heating part is arranged on the circumference of the projection, and the rotation of the blade drives food movement, achieving multiple heating and uniform heat transfer.
Ensure that the food is heated evenly, avoid local overcooked or undercooked, prevent the side walls and bottom walls of the plate from burning, improve cooking effect and save heating time.
Smart Images
Figure CN223248062U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of small household appliances, and in particular to a heating plate assembly and a food processor. Background Art
[0002] The food processor includes a drive device, a blender cup, a heating plate assembly, and a control panel. The heating plate assembly includes a plate body and a heating element. The plate body includes a bottom wall and a side wall surrounding the bottom wall. The heating element is disposed on the bottom wall of the plate body. The bottom wall and the side wall of the plate body form a plate body cavity. The blade assembly includes a blade shaft rotatably connected to the bottom wall of the plate body and a plurality of blades assembled to the blade shaft. When the blade assembly is driven by the drive device, the blades rotate within the plate body cavity.
[0003] In the above-mentioned food processor, the heating element is arranged on the bottom wall of the dish body, and can only heat a single area, which may easily lead to uneven heating of the liquid or food inside the dish body cavity, affecting the cooking effect; furthermore, after long-term use, hot spots are likely to form in the heating area, which may not only damage the container material but also cause safety hazards; finally, uneven heating may cause some ingredients to be overcooked or undercooked, affecting the taste and quality of the final product. Utility Model Content
[0004] The purpose of the present application is to disclose a heating plate assembly and a food processor. The heating plate assembly can heat food evenly.
[0005] In the first aspect, the present application discloses a heating plate assembly. The heating plate assembly includes a plate body, a knife assembly, a first heating element, and a second heating element. The plate body includes a bottom wall and a side wall of the plate body, and the bottom wall and the side wall of the plate body form a plate body cavity; the knife assembly includes a knife shaft rotatably assembled with the bottom wall of the plate body and a plurality of knife blades assembled with the knife shaft, and at least part of the plurality of knife blades is located in the plate body cavity; the first heating element is arranged in the circumference of the side wall of the plate body; within the rotation range of the knife blade, the bottom wall of the plate body is provided with a protrusion protruding toward the knife blade; the knife shaft is rotatably assembled with the protrusion, and the second heating element is arranged in the circumference of the protrusion.
[0006] As described above, since the first heating element is arranged on the side wall of the disk body around the circumference of the side wall of the disk body, the heat generated by the first heating element diffuses along the side wall of the disk body and is transferred to the bottom wall of the disk body. Since within the rotation range of the blade, the bottom wall of the disk body is provided with a protrusion toward the blade, the second heating element is arranged in the circumference of the protrusion. In this way, the heat generated by the second heating element diffuses toward the side wall of the disk body and toward the blade shaft. Compared with heating the dish body with one heating element at one position, by heating in multiple places and transferring heat along the aforementioned path, the food is heated evenly, and the rotation of the blade drives the movement of the food, which further makes the food heated evenly. Finally, the food is heated evenly. Thus, on the one hand, the cooking effect is ensured, and no hot spots will be formed after long-term use, and it is not easy to cause some ingredients to be overcooked or undercooked; on the other hand, uniform heating is conducive to avoiding local high temperature, and the side walls and bottom walls of the dish body are not easily burnt; on the third hand, because heating is carried out by the first heating element and the second heating element, for the same dish body cavity, the heating power of any one of the first heating element and the second heating element will be smaller than the heating power of the aforementioned only one heating element, and it can ensure that the side walls and bottom walls of the dish body will not be burnt; on the fourth hand, in the above-mentioned heating dish assembly, a second heating element is arranged on the bottom wall of the dish body, which can quickly heat the bottom wall of the dish body, thereby accelerating the entire heating process and saving time.
[0007] In some embodiments, in the radial plane of the blade shaft, the distance between the second heating element and the center of the blade shaft is d, the radius of the bottom wall of the disk is D, and 1 / 5≤d / D≤3 / 5.
[0008] As set above, since 1 / 5≤d / D≤3 / 5, the distance between the second heating element and the side wall of the dish body and the knife axis is relatively small, which can better ensure that the heat of the second heating element diffuses more evenly toward the side wall of the dish body and the knife axis, which is ultimately conducive to uniform heating of food.
[0009] In some embodiments, the disc cavity includes a disc cavity bottom surface; along the axial direction of the blade shaft, the height difference between the bottom of the first heating element and the disc cavity bottom surface is greater than or equal to 5 mm.
[0010] As set above, the height difference is greater than or equal to 5 mm, ensuring that the heat of the first heating element is transferred to the bottom wall of the dish body instead of directly heating the bottom wall of the dish body, ultimately facilitating uniform heating of food.
[0011] In some embodiments, the heating power of the second heating element is less than the heating power of the first heating element.
[0012] As set up above, if the bottom wall of the dish is heated with a higher power, the bottom wall of the dish is easy to burn. Therefore, the heating power of the second heating element is less than the heating power of the first heating element, which can prevent the bottom wall of the dish from being burnt while ensuring uniform heating of the food.
[0013] In some embodiments, the tray body includes a heat-conducting tray, which includes a heat-conducting tray bottom wall and a heat-conducting tray side wall. The heat-conducting tray side wall surrounds the heat-conducting tray bottom wall, and the thickness of the heat-conducting tray side wall is greater than the thickness of the heat-conducting tray bottom wall.
[0014] As described above, since the thickness of the side wall of the heat conducting plate is greater than the thickness of the bottom wall of the heat conducting plate, the greater the thickness, the slower the heat transfer. Combined with the fact that the heating power of the first heating element is greater than the heating power of the second heating element, the food is ensured to be heated evenly.
[0015] In some embodiments, the first heating element includes a relative first cold end, and the second heating element includes a relative second cold end; for the projections of the first heating element and the second heating element on the radial plane of the knife axis, the midpoint between the two relative first cold ends and the center of the knife axis constitute a first connecting line; the midpoint between the two second cold ends and the center of the knife axis constitute a second connecting line; the angle formed by the first connecting line and the second connecting line is b, 90 degrees ≤ b ≤ 180 degrees.
[0016] As set up above, regardless of whether it is the first heating element or the second heating element, during the heating process, the temperature of the area of the side wall of the dish corresponding to the first cold end will be lower than the temperature of the area of the side wall of the dish corresponding to other parts of the first heating element. Correspondingly, the temperature of the area of the bottom wall of the dish corresponding to the second cold end will be lower than the temperature of the area of the bottom wall of the dish corresponding to other parts of the second heating element, and the temperature will be 90 degrees ≤ b ≤ 180 degrees to ensure that the areas with relatively low temperatures will not be too concentrated, and ultimately, ensure that the food is heated evenly.
[0017] In some embodiments, the disk body includes a raised portion located in the middle of the disk body, and a groove is formed between the raised portion and the side wall of the disk body; the raised portion includes an accommodating cavity; the knife shaft is rotatably assembled with the raised portion, and the knife shaft extends into the accommodating cavity; the second heating element is arranged on the side of the accommodating cavity.
[0018] As described above, since the blade shaft extends into the accommodating cavity, and the bearing and driven member 520 are located within the accommodating cavity, the side of the accommodating cavity is spaced a certain distance from the blade shaft. Positioning the second heating element 22 on the side of the accommodating cavity ensures that the heat generated by the second heating element is evenly diffused toward the side walls of the dish and the blade shaft, ensuring uniform heating of the food and preventing the bottom wall of the dish from being burned. Furthermore, positioning the second heating element on the side of the accommodating cavity facilitates placement of the second heating element and facilitates the layout of other components.
[0019] In some embodiments, the plurality of blades include a first blade, which extends into the groove; along the axial direction of the blade shaft, the tip of the first blade is located between the top of the first heating element and the bottom of the second heating element.
[0020] As described above, since the second heating element is arranged on the side of the accommodating cavity, and the first heating element is arranged on the side wall of the dish body, after the first blade extends into the groove and the tip of the blade is located between the top of the first heating element and the bottom of the second heating element, the turbulence generated by the rotation of the blade can enhance the fluidity of the food in the groove, preventing the food from sticking to the protrusion and the parts of the side and bottom of the dish body cavity corresponding to the groove, thereby preventing the bottom and sides of the dish body cavity from being burned.
[0021] In some embodiments, the diameter of the protrusion is D1, the diameter of the opening of the disc cavity is D2, and 0.1≤D1 / D2≤0.65.
[0022] As set above, since 0.1≤D1 / D2≤0.65, it is equivalent to limiting the distance between the second heating element and the first heating element, as well as the distance between the second heating element and the blade shaft, thereby ensuring that there is no risk of collision between the blade tip and the side of the dish cavity and that the food is heated evenly. If the above ratio is less than 0.1, the distance between the tip of the blade (such as the tip of the first blade) and the side of the dish cavity is small, and there is a risk of collision; if the above ratio is greater than 0.1, the corresponding accommodating cavity is smaller, which is not conducive to heat transfer on the one hand, and the length of the second heating element is smaller on the other hand, which is not conducive to heating. Ultimately, D1 / D2≤0.65 is conducive to uniform heating of food and avoidance of collision risks.
[0023] In some embodiments, along the axial direction of the blade shaft, the protruding height of the protrusion is H, 3mm≤H≤25mm.
[0024] As set up above, since 3mm≤H≤25mm, the height of the raised portion will not be too high, and the second heating element is arranged on the side of the accommodating cavity of the raised portion, which will also make the second heating element not high relative to the bottom end of the side wall of the dish body (which can also be understood as the bottom of the groove), thereby ensuring diffusion toward the side wall of the dish body 12 and toward the knife shaft 52, and evenly heating the food.
[0025] In some embodiments, the heating plate assembly includes at least one of the following features:
[0026] a) The dish cavity includes a dish cavity bottom surface and a dish cavity side surface surrounding the dish cavity bottom surface, the dish cavity side surface includes a bottom edge connected to the dish cavity bottom surface and a top edge opposite to the bottom edge; the angle formed by the tangent plane passing through the top edge and the bottom edge and the dish cavity bottom surface is a, 90 degrees ≤ a ≤ 170 degrees; as set above, when 90 degrees ≤ a ≤ 170 degrees, the turbulence generated by the blades achieves a good stirring effect, improves the fluidity of food, and can prevent the dish cavity side surface and dish cavity bottom surface from being stained and burned.
[0027] b) Along the axial direction of the blade shaft, the multiple blades include a lowest blade tip, and the lowest blade tip is located in the disc cavity; the disc cavity includes a disc cavity bottom surface and a disc cavity side surface. The distance between the top of the first heating element and the disc cavity bottom surface is L2, and the distance between the lowest blade tip and the disc cavity bottom surface is L1, 0.25≤L1 / L2≤0.75. As set above, since 0.25≤L1 / L2≤0.75, the heating area of the disc cavity side surface of the disc side wall corresponding to the first heating element is heated by the first heating element, and this area is closer to the turbulence area of the blade, and the turbulence of the blade (at least the turbulence generated by the blade with the lowest blade tip) acts more effectively on the heating area, the blade has a good stirring effect, and the food has better fluidity, which can prevent the side surface of the disc cavity from being stained and burned, and correspondingly, can prevent the bottom surface of the disc cavity from being stained and burned.
[0028] c) The disc cavity includes a disc cavity bottom surface and a disc cavity side surface surrounding the disc cavity bottom surface; along the radial direction of the blade shaft, among the blade tips of the multiple blades, the distance between the lowest blade tip and the disc cavity side surface is P1; the disc cavity side surface is inclined toward the outside of the disc body, and the width of the projection on the radial plane of the blade shaft is P2, 0.1≤P1 / P2≤0.6; as described above, since 0.1≤P1 / P2≤0.6, the distance between the disc cavity side surface and the blade is not too far, so that the turbulence of the blade (at least The turbulence generated by the blade with the lowest blade tip) can more effectively act on the area corresponding to the first heating element and the heating area corresponding to the second heating element, and has a good stirring effect on the food, making the food fluidity good, thereby preventing the food from sticking to the side of the dish cavity and burning. In addition, the first heating element is arranged circumferentially around the side wall of the dish body, first heating the side wall of the dish body, and the heat is transferred to the bottom wall of the dish body through the side wall of the dish body. The bottom wall of the dish body is heated evenly, and the turbulence generated by the blade makes the food fluidity good, and the bottom surface of the dish cavity will not stick to the food and burn. In summary, the above arrangement can avoid the problem of food poor in fluidity and accumulation at the bottom of the dish and burning, thereby improving the user experience.
[0029] d) The disc cavity includes a disc cavity bottom surface and a disc cavity side surface surrounding the disc cavity bottom surface, the disc cavity side surface is inclined toward the outside of the disc body, and includes an arc-shaped surface, the center of the arc-shaped surface is located on the rotation center line of the knife assembly, or deviates from the rotation center line of the knife assembly. As described above, since the side surface of the dish cavity includes an arc-shaped surface, the side surface of the dish cavity is inclined toward the outside of the bottom surface of the dish cavity. On the one hand, the outward inclination of the side surface of the dish cavity can better utilize the turbulence generated by the blade, and the good turbulence effect allows the food to form an effective circulation path in the dish cavity, which helps to bring large pieces of food near the blade for cutting, so that the food has good fluidity, avoids the side surface of the dish cavity from getting stuck with food and being burned, and makes the thickness of the food more uniform. On the other hand, when the volume of the dish cavity is equal, the outward inclination of the side surface of the dish cavity can make the bottom surface of the dish cavity smaller, and the turbulence can maximize the fluidity of the food so that the liquid and solid mixture can circulate more smoothly in the dish cavity, so that the food has good fluidity and avoids the side surface of the dish cavity from getting stuck with food and being burned, because the bottom surface of the dish cavity heats the food through heat transfer from the side surface of the dish cavity. Combined with the turbulence of the blade, the above-mentioned setting can also prevent the bottom surface of the dish cavity from being burned. The center of the arc surface deviates from the rotation center line of the blade assembly, which is equivalent to the side of the disc cavity being tilted more toward the outside of the blade shaft. In this way, on the one hand, the center of the side of the disc cavity deviates from the rotation center line, and when beating, the food accumulated on the side of the disc cavity generates certain small vortices on the side. These small vortices are different from the large vortices generated around the rotation center line. The small vortices circulate in the up and down directions, which helps the food to be fully stirred and mixed more evenly. On the other hand, in the process of the blade beating to form turbulence, the water flow is better and the exchange is faster, and more water enters the bottom edge area of the disc cavity. Ultimately, the food in the bottom edge area of the disc cavity can be fully stirred and the food is mixed more evenly. In the case where the first heating element is provided on the side wall of the disc body, because the food at the bottom edge of the disc cavity can also be fully stirred, the food in the bottom edge area of the disc cavity is not ignored and can be effectively heated, so the overall heating efficiency is high.
[0030] In a second aspect, embodiments of the present application disclose a food processor, comprising a drive device, a control panel, and any of the aforementioned heating plate assemblies, wherein the control panel controls the drive device to rotate the plurality of blades and is electrically connected to the first and second heating elements to control heating of the first and second heating elements.
[0031] As configured above, the food processor at least has the beneficial effects of the heating plate assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 is an exploded view of a food processor according to an embodiment of the present application;
[0033] Figure 2 is an exploded view of a blender cup assembly according to an embodiment of the present application;
[0034] Figure 3 yes Figure 2 A cross-sectional view of the blender jar assembly in the assembled state is shown;
[0035] Figure 4 is an exploded view of a heating plate assembly according to an embodiment of the present application;
[0036] Figure 5 is a cross-sectional view of a heating plate assembly according to an embodiment of the present application;
[0037] Figure 6 is a bottom view of the heating plate assembly in an assembled state according to an embodiment of the present application;
[0038] Figure 7 This is the relationship between angle a and the number of meters;
[0039] Figure 8 It is a graph showing the relationship between the ratio of P1 to P2 and the number of rice stains. DETAILED DESCRIPTION
[0040] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0041] If there are terms related to directional indications or positional relationships in the embodiments of this application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of this application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.
[0042] See also Figure 4 、 Figure 5 and Figure 6, the present application discloses a heating plate assembly 10. The heating plate assembly 10 includes a plate body 1, a knife assembly 5, a first heating element 21 and a second heating element 22. The heating plate assembly 10 also includes an NTC component 91 and a thermostat 92. In an embodiment of the present application, the plate body 1 is a double-layer structure, including an inner plate body 141 and a heat-conducting plate 142. The heat-conducting plate 142 covers the inner plate body 141. The inner plate body 141 is made of, for example, a food-grade stainless steel plate. The heat-conducting plate 142 can be an aluminum plate as long as it can conduct heat. In some embodiments, the plate body 1 can also be a single-layer structure. Regardless of the structure of the plate body 1, the plate body 1 includes a plate body bottom wall 11 and a plate body side wall 12, and the plate body bottom wall 11 and the plate body side wall 12 form a plate body cavity 13.
[0043] The knife assembly 5 includes a knife shaft 52 rotatably assembled with the bottom wall 11 of the disk body and a plurality of knife blades assembled on the knife shaft (in the embodiment of the present application, the knife blades are marked as the first knife blade 531 and the second knife blade 532 for easy distinction), and the plurality of knife blades are at least partially located in the disk body cavity 13. In the embodiment of the present application, the knife assembly 5 includes a bearing seat 51, a knife shaft 52, a first knife blade 531 and a second knife blade 532. The bearing seat 51 can be welded to the bottom wall 11 of the disk body, or assembled in other ways. The knife shaft 52 is assembled with the bearing in the bearing seat 51 to realize the rotational assembly of the knife shaft 52 and the bottom wall 11 of the disk body. The first knife blade 531 and the second knife blade 532 each have two blades, so that the knife assembly 5 is a four-leaf knife. The number of knife blades is not limited to this, and in some cases it can also be two blades, three blades, etc. In the embodiment of the present application, at least part of the knife blades located in the disk body cavity 13 include: 1) as Figure 5 As shown, the tip of the first blade 531 (the lowest tip 5311) extends into the disc body cavity 13, and the tip of the second blade 532 (the highest tip 5321) extends out of the disc body cavity 13; 2) all the blades are located in the disc body cavity 13, which can be understood as the highest tip 5321 is located in the disc body cavity, and the highest tip 5321 is located in the disc body cavity 13, and naturally all the blades are located in the disc body cavity 13.
[0044] See also Figure 5 The first heating element 21 is disposed on the disk sidewall 12 around the circumference of the disk sidewall 12 (i.e., the first heating element 21 is disposed on the circumference of the disk sidewall 12). Within the rotation range of the blade, the disk bottom wall 11 is provided with a protrusion 15 protruding toward the blade; the blade shaft 52 is rotatably assembled with the protrusion 15. The second heating element 22 is disposed on the protrusion 15 around the circumference of the protrusion 15 (i.e., the second heating element 22 is disposed on the circumference of the protrusion 15).
[0045] As described above, since the first heating element 21 is arranged around the circumference of the disk side wall 12 and is higher than the disk bottom wall 11, the heat generated by the first heating element 21 diffuses along the disk side wall 12 and is transferred to the disk bottom wall 11. Figure 5 As shown by the dotted arrow y1, and because within the rotation range of the blade, the bottom wall 11 of the dish is provided with a protrusion 15 toward the blade, and the second heating element 22 is provided in the circumference of the protrusion 15, the heat generated by the second heating element 22 diffuses toward the side wall 12 of the dish (as indicated by the dotted arrow y2) and toward the blade shaft 52 (as indicated by the dotted arrow y3). Compared with heating the dish 1 at one location by one heating element, by heating at multiple locations and transferring the heat along the aforementioned path, the food is heated evenly, and the rotation of the blade drives the food to move, further making the food heated evenly. Ultimately, the food is heated evenly. Thus, on the one hand, the food is heated evenly to ensure the cooking effect, and hot spots will not be formed after long-term use, and it is not easy to cause some ingredients to be overcooked or undercooked; on the other hand, the even heating helps to avoid local high temperatures, and the side wall 12 and bottom wall 11 of the dish are not easily burnt; on the other hand, because the heating is performed by the first heating element 21 and the second heating element 22, for the same dish cavity 13, the first heating element 21 and the second heating element 2 The heating power of any one of them will be lower than the heating power of the aforementioned case where only one heating element is used (for example, assuming that both are heated at 2000W, when only one heating element is used, the heating power of the heating element is 2000W. After adopting the first heating element 21 and the second heating element 22, the heating power of the second heating element 22 can be 800W, and the heating power of the first heating element 21 can be 1200W), thereby ensuring that the side walls 12 of the dish and the bottom wall 11 of the dish will not be burnt; fourthly, in the aforementioned heating dish assembly, the second heating element 22 is provided on the bottom wall 11 of the dish, which can heat the bottom wall 11 of the dish quickly compared to when only the first heating element 22 is provided, thereby accelerating the entire heating process and saving time.
[0046] In some embodiments, in the radial plane of the blade shaft 52, the distance between the second heating element 22 and the center of the blade shaft 52 is d, the radius of the bottom wall 11 of the disk is D, 1 / 5≤d / D≤3 / 5, for example, 1 / 5, 1 / 4, 3 / 10, 7 / 20, 2 / 5, 9 / 20, 1 / 2 or 3 / 5, etc.
[0047] As set above, since 1 / 5≤d / D≤3 / 5, the distance between the second heating element 22 and the side wall of the dish 12 and the knife shaft 52 is relatively small, which can better ensure that the heat of the second heating element 22 diffuses more evenly toward the side wall of the dish 12 and the knife shaft 52, which is ultimately conducive to uniform heating of food.
[0048] In some embodiments, the heating power of the second heating element 22 is less than the heating power of the first heating element 21. For example, the heating power of the first heating element 21 is 800W-1500W, and the heating power of the second heating element 22 is 300W-800W.
[0049] As set up above, if the bottom wall 11 of the dish body is heated with a higher power, the bottom wall 11 of the dish body is easy to burn. Therefore, the heating power of the second heating element 22 is less than the heating power of the first heating element 21, which can prevent the bottom wall 11 of the dish body from being burnt while ensuring that the food is heated evenly.
[0050] See also Figure 5 The disc cavity 13 includes a disc cavity bottom surface 131; along the axial direction of the knife shaft, the height difference K between the bottom of the first heating element 21 and the disc cavity bottom surface 131 is greater than or equal to 5 mm.
[0051] As set above, the height difference K is greater than or equal to 5 mm, ensuring that the heat of the first heating element is transferred to the bottom wall of the dish body instead of directly heating the bottom wall of the dish body, ultimately facilitating uniform heating of food.
[0052] See also Figure 5 and Figure 4 The tray body 1 includes a heat conducting tray 142, which includes a heat conducting tray bottom wall 1421 and a heat conducting tray side wall 1422. The heat conducting tray side wall 1422 surrounds the heat conducting tray bottom wall 1421, and the thickness of the heat conducting tray side wall 1422 is greater than the thickness of the heat conducting tray bottom wall 1421.
[0053] As described above, since the thickness of the side wall 1422 of the heat conducting plate is greater than the thickness of the bottom wall 1421 of the heat conducting plate, the greater the thickness, the slower the heat transfer. Combined with the fact that the heating power of the first heating element 21 is greater than the heating power of the second heating element 22, the food is ensured to be heated evenly.
[0054] See also Figure 5 The thickness of the heat conducting plate side wall 1422 is S1, the thickness of the heat conducting plate bottom wall 1421 is S2, and 1 / 3≤S2 / S1≤7 / 10. For example, within the above ratio range, 1≤S1≤3.5mm, 0.5≤S1≤2.5mm.
[0055] As set above, 1 / 3≤S2 / S1≤7 / 10 can ensure that food is heated evenly.
[0056] See also Figure 6 and Figure 4 The first heating element 21 includes an opposite first cold end 211. The second heating element 22 includes an opposite second cold end 221. Figure 6For the projections of the first heating element 21 and the second heating element 22 on the radial plane of the blade shaft 52, the midpoint between the two opposite first cold ends 211 and the center of the blade shaft 52 form a first connecting line 231. The midpoint between the two second cold ends 221 and the center of the blade shaft 52 form a second connecting line 232. The angle formed by the first connecting line 231 and the second connecting line 232 is b. Figure 6 In the embodiment, b=180 degrees, however, in further embodiments, 90 degrees ≤ b ≤ 180 degrees, for example, 91 degrees, 93 degrees, 95 degrees, 98 degrees, 100 degrees, 103 degrees, 110 degrees, 115 degrees, 120 degrees, 123 degrees, 125 degrees, 130 degrees, 133 degrees, 135 degrees, 140 degrees, 143 degrees, 145 degrees, 148 degrees, 150 degrees, 154 degrees, 158 degrees, 160 degrees, 163 degrees, 165 degrees, 168 degrees, 170 degrees, 173 degrees, 175 degrees, 178 degrees or 180 degrees.
[0057] As set up as above, whether it is the first heating element 21 or the second heating element 22, during the heating process, the temperature of the area of the first cold end 211 corresponding to the side wall 12 of the dish body will be lower than the temperature of the area of the other parts of the first heating element 21 corresponding to the side wall 12 of the dish body. Correspondingly, the temperature of the area of the second cold end 221 corresponding to the bottom wall 11 of the dish body will be lower than the temperature of the area of the other parts of the second heating element 22 corresponding to the bottom wall 11 of the dish body, and the temperature will be 90 degrees ≤ b ≤ 180 degrees to ensure that the areas with relatively low temperatures will not be too concentrated, and ultimately, ensure that the food is heated evenly.
[0058] See also Figure 5 and Figure 6 The disc body 1 includes a raised portion 15 located in the middle of the disc body 1, so that a groove 150 is formed between the raised portion 15 and the disc body side wall 12. The raised portion 15 includes a receiving cavity 151. The knife shaft 52 is rotated and assembled with the raised portion 15, as shown in FIG. Figure 5 As shown, the blade shaft 52 is rotatably assembled with the protrusion 15 via the bearing seat 51. After assembly, the blade shaft 52 extends into the accommodating cavity 151, thereby connecting the blade shaft 52 to the driven member 520, which is a clutch in the embodiment of this application. In the embodiment using magnetic drive, the driven member 520 includes a magnet. The second heating element 22 is disposed on the side of the accommodating cavity 151.
[0059] As described above, since the blade shaft 52 extends into the accommodating cavity 151, the accommodating cavity 151 contains a bearing and a driven member 520, so that the side of the accommodating cavity 151 is at a certain distance from the blade shaft 52, the second heating element 22 is arranged on the side of the accommodating cavity 151, which can ensure that the heat generated by the second heating element 22 is dissipated along the accommodating cavity 151. Figure 5The uniform diffusion in the directions y2 and y3 shown ensures that the food is heated evenly and that the bottom wall 11 of the dish body is not burnt. In addition, since the second heating element 22 is arranged on the side of the accommodating cavity 151, it is also convenient to place the second heating element 22 and to arrange other components.
[0060] See also Figure 5 The plurality of blades includes a first blade 531, which extends into the groove 150. Along the axial direction of the blade shaft 52, the tip of the first blade 531 is located between the top of the first heating element 21 and the bottom of the second heating element 22. In the embodiment of the present application, the tip of the first blade 531 is the lowest tip 5311. Technicians will understand that the tip of the first blade 531 is not necessarily the lowest tip, and it mainly refers to the tip of the blade that extends into the groove 150.
[0061] As described above, since the second heating element 22 is arranged on the side of the accommodating cavity 151, and combined with the first heating element 21 being arranged on the side wall 12 of the dish body, after the first blade 531 extends into the groove 150 and the tip of the blade is located between the top of the first heating element 21 and the bottom of the second heating element 22, the turbulence generated by the rotation of the blade can enhance the fluidity of the food in the groove 150, preventing the food from sticking to the protrusion 15 and the parts of the dish body cavity side 132 and the dish body cavity bottom corresponding to the groove 150, thereby preventing the dish body cavity bottom 131 and the dish body cavity side 132 from being burned.
[0062] See also Figure 5 The diameter of the protrusion 15 is D1, and the diameter of the cavity opening of the disc cavity 13 is D2, 0.1≤D1 / D2≤0.65. For example, the ratio of D1 / D2 can be: 0.1, 0.15, 0.18, 0.2, 0.23, 0.25, 0.28, 0.3, 0.33, 0.35, 0.38, 0.4, 0.42, 0.45, 0.48, 0.5, 0.53, 0.55, 0.58, 0.6, 0.63 or 0.65.
[0063] As set above, since 0.1≤D1 / D2≤0.65, it is equivalent to limiting the distance between the second heating element 22 and the first heating element 21 and the distance between the second heating element 22 and the blade shaft 52, thereby ensuring that there is no risk of collision between the blade tip and the side surface 132 of the disc cavity and that the food is heated evenly. If the above ratio is less than 0.1, the distance between the tip of the blade (such as the tip of the first blade) and the side surface 132 of the disc cavity is small, and there is a risk of collision; if the above ratio is greater than 0.65, the corresponding accommodating cavity 151 is smaller, which is not conducive to heat transfer on the one hand, and on the other hand, the length of the second heating element 22 is smaller, which is not conducive to heating. Ultimately, D1 / D2≤0.65 is conducive to uniform heating of food and avoidance of collision risks.
[0064] See also Figure 5 In some embodiments, the height of the protruding portion 15 along the axial direction of the blade shaft 52 is H, 3mm≤H≤25mm, for example, 3mm, 5mm, 7mm, 9mm, 10mm, 11mm, 12mm, 13mm, 15mm, 18mm, 20mm, 22mm or 25mm.
[0065] As set up above, since 3mm≤H≤25mm, the height of the raised portion 15 will not be too high, and the second heating element 22 is set on the side of the accommodating cavity 151 of the raised portion 15, which will also make the second heating element 22 not high relative to the bottom end of the dish side wall 12 (which can also be understood as the bottom of the groove 150), thereby ensuring that the food is diffused along the y2 direction toward the dish side wall 12 and along the y3 direction toward the knife shaft 52, and the food is heated evenly.
[0066] See also Figure 5 The disc cavity 13 includes a disc cavity bottom surface 131 and a disc cavity side surface 132 surrounding the disc cavity bottom surface 131. The disc cavity side surface 132 includes a bottom edge connected to the disc cavity bottom surface 131 and a top edge opposite to the bottom edge. The angle formed by the tangent plane passing through the top edge and the bottom edge and the disc cavity bottom surface 131 is a, 90 degrees ≤ a ≤ 170 degrees, for example, 90 degrees, 95 degrees, 100 degrees, 105 degrees, 110 degrees, 115 degrees, 120 degrees, 125 degrees, 130 degrees, 135 degrees, 140 degrees, 145 degrees, 150 degrees, 155 degrees, 160 degrees, 165 degrees or 170 degrees. See. Figure 7 , Figure 7 This is a chart based on the following table.
[0067] a 90 95 100 105 110 115 120 125 130 Number of rice 11 8 8 6 2 0 3 5 5 a 135 140 145 150 155 160 165 170 Number of rice 8 7 6 8 9 12 15 14
[0068] exist Figure 7As shown in the above table, when the angle a is around 105 degrees to 130 degrees, the number of rice particles is within 5, and when the angle a exceeds 130 degrees, the number of rice particles exceeds 5.
[0069] As set above, when 90 degrees ≤ a ≤ 170 degrees, the turbulence generated by the blades achieves a good stirring effect, improves the fluidity of food, and prevents the dish cavity side surface 132 and the dish cavity bottom surface 131 from being stained and burned.
[0070] See also Figure 5 Along the axial direction of the blade shaft 52, the multiple blades include a lowest blade tip 5311, and the lowest blade tip 5311 is located in the disc body cavity 13, including: a) in an embodiment of the present application, the lowest blade tip 5311 is located in the disc body cavity 13, and the highest blade tip 5321 is located outside the disc body cavity 13; b) the lowest blade tip 5311 and the highest blade tip 5321 are both located in the disc body cavity 13. The disc cavity 13 includes a disc cavity bottom surface 131 and a disc cavity side surface 132; the distance between the top of the first heating element 21 and the disc cavity bottom surface 131 is L2, and the distance between the lowest tip 5311 and the disc cavity bottom surface 131 is L1, 0.25≤L1 / L2≤0.75; for example, 0.25, 0.28, 0.3, 0.33, 0.35, 0.38, 0.4, 0.43, 0.45, 0.48, 0.5, 0.52, 0.55, 0.58, 0.6, 0.62, 0.65, 0.68, 0.7, 0.72, 0.73 or 0.75. It should be noted here that, Figure 5 In the figure, along the axial direction of the blade shaft 52, the lowest blade tip 5311 is located between the top and bottom edges of the contact surface formed by the first heating element 21 and the side wall 12 of the disk body. However, when 0.25≤L1 / L2≤0.75, the lowest blade tip 5311 may also be lower than the bottom edge of the contact surface or other situations.
[0071] In some embodiments, L1 and L2 satisfy at least one of the following conditions:
[0072] a) 0.3 ≤ L1 / L2 ≤ 0.6, for example, 0.3, 0.33, 0.35, 0.38, 0.4, 0.42, 0.45, 0.48, 0.5, 0.52, 0.55, 0.58 or 0.6;
[0073] b) 5mm≤L1≤25mm, for example, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm or 26mm;
[0074] c) 6mm≤L2≤60mm, for example, 6mm, 8mm, 10mm, 13mm, 15mm, 18mm, 20mm, 23mm, 25mm, 28mm, 30mm, 33mm, 35mm, 38mm, 40mm, 42mm, 45mm, 48mm, 50mm, 52mm, 55mm, 58mm or 60mm.
[0075] As set above, since 0.25≤L1 / L2≤0.75, the heating area corresponding to the disk cavity side surface 132 of the disk side wall 12 and the first heating element 21 is heated by the first heating element 21, and this area is close to the turbulence area of the blade, and the turbulence of the blade (at least the turbulence generated by the blade with the lowest blade tip) acts more effectively on the heating area. The stirring effect of the blade is good, which makes the food more fluid, and can prevent the disk cavity side surface 132 from being stained with food and burned. Correspondingly, it can prevent the disk cavity bottom surface 131 from being stained with food and burned.
[0076] See also Figure 5 The disc cavity 13 includes a disc cavity bottom surface 131 and a disc cavity side surface 132 around the disc cavity bottom surface 131; along the radial direction of the blade shaft 52, the distance between the lowest blade tip 5311 and the disc cavity side surface 132 is P1; the disc cavity side surface 132 is inclined toward the outside of the disc body 1, and the outward inclination includes: 1) the shape shown in the figure; 2) in the Figure 1 The shape shown may be increased by a cylindrical side, etc. The width of the projection on the radial plane of the blade shaft 52 is P2, 0.1≤P1 / P2≤0.6. For example, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55 or 0.6.
[0077] See also Figure 8 Combined with the following table, Figure 8 The chart is generated based on the following table:
[0078] P1 / P2 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 Number of rice 6 4 2 0 0 3 5 7 P1 / P2 0.5 0.55 0.6 0.65 0.7 Number of rice 11 13 13 18 25
[0079] from Figure 8As can be seen from the above table, when 0.1≤P1 / P2≤0.25, the number of rice sticking shows a downward trend. When the ratio of P1 / P2 is greater than 0.3, the number of rice sticking shows an upward trend. Furthermore, when the ratio is 0.15≤P1 / P2≤0.4, the number of rice sticking is less than or equal to 5, the anti-sticking effect is optimal, and the anti-sticking effect of level 2 is achieved. When the ratio of P1 / P2 is 0.45, the number of rice sticking is 7; at 0.5, the number of rice sticking is 11, when the ratio is 0.55, the number of rice sticking is 13, when the ratio is 0.6, the number of rice sticking is 13, when the ratio is 0.65, the number of rice sticking is 18, and when the ratio is 0.7, the number of rice sticking is 25. In summary, 0.1≤P1 / P2≤0.6.
[0080] As set up above, since 0.1≤P1 / P2≤0.6, the distance between the side surface 132 of the disc cavity and the blade will not be too far, so that the turbulence of the blade (at least the turbulence generated by the blade at the lowest blade tip 5311) can more effectively act on the heating area corresponding to the side surface 132 of the disc cavity and the first heating element 21 and the second heating element 22, which has a good stirring effect on the food and makes the food fluidity good, thereby preventing the food from sticking to the side surface 132 of the disc cavity and getting burnt. In addition, the first heating element 21 is arranged circumferentially around the side wall 12 of the disc body, first heating the side wall 12 of the disc body, and the heat is transferred to the bottom wall 11 of the disc body through the side wall 12 of the disc body. The bottom wall 11 of the disc body is evenly heated, and the turbulence generated by the blade makes the food fluidity good, and the bottom surface 131 of the disc cavity will not stick to the food and get burnt. In summary, the above setting can avoid the problem of food poor in fluidity accumulating at the bottom of the disc and getting burnt, thereby improving the user experience.
[0081] In some embodiments, 3mm≤P1≤25mm, for example, 3mm, 5mm, 8mm, 10mm, 12mm, 15mm, 17mm, 20mm, 22mm, 24mm or 25mm; 5mm≤P2≤60mm, for example, 5mm, 7mm, 9mm, 10mm, 15mm, 18mm, 20mm, 23mm, 25mm, 28mm, 30mm, 33mm, 35mm, 37mm, 40mm, 45mm, 48mm, 50mm, 53mm, 55mm, 57mm or 60mm.
[0082] See also Figure 5 The disc cavity 13 includes a disc cavity bottom surface 131 and a disc cavity side surface 132 surrounding the disc cavity bottom surface 131. The disc cavity side surface 132 is inclined toward the outside of the disc body 1 and includes an arc-shaped surface. Figure 5As shown, the disc cavity side surface 132 has only an arcuate surface. In another embodiment, the disc cavity side surface 132 includes a cylindrical surface connected to the arcuate surface in addition to the arcuate surface. It can be understood that in this case, the upper part of the disc cavity 13 is cylindrical, and the lower part is as shown. Figure 5 The shape shown. Figure 5 In the embodiment, the center O of the arcuate surface is located on the rotation center line of the knife assembly 5. In another embodiment, the center O of the arcuate surface deviates from the rotation center line of the knife assembly 5.
[0083] As described above, since the side surface 132 of the plate cavity includes an arcuate surface, the side surface 132 of the plate cavity is inclined toward the outside of the bottom surface 131 of the plate cavity. On the one hand, the outward inclination of the side surface 132 of the plate cavity can better utilize the turbulence generated by the blade, and the turbulence effect is good, so that the food can form an effective circulation path in the plate cavity 13, which helps to bring large pieces of food near the blade for cutting, so that the fluidity of the food is good, and the side surface 132 of the plate cavity is prevented from being stained by the food and being burned, and the thickness of the food is more uniform. On the other hand, when the volume of the dish cavity 13 is equal, the outward inclination of the dish cavity side surface can make the dish cavity bottom surface 131 smaller. The turbulence can maximize the fluidity of the food, allowing the liquid and solid mixture to circulate more smoothly in the dish cavity 13, making the food fluidity good, and preventing the dish cavity side surface 132 from being stained with food and burned. Because the dish cavity bottom surface 131 heats the food through heat transfer from the dish cavity side surface 132, combined with the turbulence of the blade, the above arrangement can also prevent the dish cavity bottom surface 131 from being burned.
[0084] The center of the arc surface deviates from the rotation centerline of the blade assembly 5, which is equivalent to the side of the disc cavity being tilted more toward the outside of the blade axis. In this way, on the one hand, the center of the disc cavity side surface 132 deviates from the rotation centerline, and when beating, the food accumulated on the disc cavity side surface 132 generates certain small vortices on the side. These small vortices are different from the large vortices generated around the rotation centerline. The small vortices circulate in the up and down directions, helping to fully stir the food and mix it more evenly. On the other hand, during the process of the blade beating to form turbulence, the water flow is better and the exchange is faster, and more water enters the bottom edge area of the disc cavity 13. Ultimately, the food in the bottom edge area of the disc cavity 13 can be fully stirred and the food is mixed more evenly. In the case where the first heating element 21 is provided on the side wall 12 of the disc body, because the food at the bottom edge of the disc cavity 13 can also be fully stirred, the food in the bottom edge area of the disc cavity 13 is not ignored and can be effectively heated, resulting in high overall heating efficiency.
[0085] Second, see Figure 1 、 Figure 2 and Figure 3The present application discloses a food processor. The food processor includes a driving device, a control panel, and any of the aforementioned heating plate assemblies 10. In the embodiment of the present application, the driving device is disposed in the main unit 200. The heating plate assembly 10, the blending cup 20, the cup cover 30, and other components constitute the blending cup assembly 100. Figure 2 , the blending cup assembly 100 also includes a cup holder 40, a bottom cover 50, a coupler 60 and a handle 70. The blending cup assembly 100 and the main unit 200 are split, and the blending cup assembly 100 is assembled to the main unit 200. In other embodiments, the blending cup assembly 100 and the main unit 200 may not be split. For non-split types, the blending cup assembly 100 and the main unit 200 cannot be clearly divided into the blending cup assembly 100 and the main unit 200 like the split type, but in most cases, the driving device is located at the lower end of the food processor. The control board controls the driving device to drive the multiple blades to rotate, so that the blades can process food. The control board is also electrically connected to the first heating element 21 and the second heating element 22 to control the heating of the first heating element 21 and the second heating element 22 to heat the food.
[0086] As configured above, the food processor at least has the beneficial effects of the heating plate assembly, which will not be described in detail.
[0087] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.
Claims
1. A heating plate assembly, characterized in that: The heating plate assembly comprises a plate body (1), a knife assembly (5), a first heating element (21) and a second heating element (22), wherein: The disk body (1) comprises a disk body bottom wall (11) and a disk body side wall (12), wherein the disk body bottom wall (11) and the disk body side wall (12) enclose a disk body cavity (13); The knife assembly (5) comprises a knife shaft (52) rotatably assembled with the bottom wall (11) of the disc body, and a plurality of knife blades assembled on the knife shaft (52), wherein at least a portion of the plurality of knife blades is located in the disc body cavity (13); The first heating element (21) is arranged in the circumferential direction of the disk side wall (12); Within the rotation range of the blade, the bottom wall (11) of the disc body is provided with a protrusion (15) convex toward the blade; the blade shaft (52) is rotationally assembled with the protrusion (15), and the second heating element (22) is arranged in the circumference of the protrusion (15).
2. The heating plate assembly according to claim 1, characterized in that: In the radial plane of the knife shaft (52), the distance between the second heating element (22) and the center of the knife shaft (52) is d, the radius of the bottom wall (11) of the disk is D, and 1 / 5≤d / D≤3 / 5; And / or, the disc cavity (13) includes a disc cavity bottom surface (131); along the axial direction of the knife shaft, the height difference between the bottom of the first heating element (21) and the disc cavity bottom surface (131) is greater than or equal to 5 mm.
3. The heating plate assembly according to claim 1, characterized in that: The heating power of the second heating element (22) is less than the heating power of the first heating element (21).
4. The heating plate assembly according to claim 3, characterized in that: The disk body (1) comprises a heat-conducting disk (142), and the heat-conducting disk (142) comprises a heat-conducting disk bottom wall (1421) and a heat-conducting disk side wall (1422), wherein the heat-conducting disk side wall (1422) surrounds the heat-conducting disk bottom wall (1421), and the thickness of the heat-conducting disk side wall (1422) is greater than the thickness of the heat-conducting disk bottom wall (1421).
5. The heating plate assembly according to claim 1, characterized in that: The first heating element (21) includes a first cold end (211) and a second heating element (22) includes a second cold end (221). For the projections of the first heating element (21) and the second heating element (22) on the radial plane of the knife shaft (52), the midpoint between the two opposite first cold ends (211) and the center of the knife shaft (52) form a first connecting line (231); the midpoint between the two second cold ends (221) and the center of the knife shaft (52) form a second connecting line (232); The angle formed by the first connecting line (231) and the second connecting line (232) is b, and 90 degrees ≤ b ≤ 180 degrees.
6. The heating plate assembly according to claim 1, characterized in that: A groove (150) is formed between the protrusion (15) and the side wall (12) of the disk body; the protrusion (15) includes a receiving cavity (151); The knife shaft (52) extends into the accommodating cavity (151); the second heating element (22) is arranged on the side of the accommodating cavity (151).
7. The heating plate assembly according to claim 6, characterized in that: The multiple blades include a first blade (531), which extends into the groove (150); along the axial direction of the blade shaft (52), the tip of the first blade (531) is located between the top of the first heating element (21) and the bottom of the second heating element (22).
8. The heating plate assembly according to claim 1, wherein: The diameter of the protrusion (15) is D1, the diameter of the opening of the disc cavity (13) is D2, and 0.1≤D1 / D2≤0.65; And / or, along the axial direction of the blade shaft (52), the protruding height of the protruding portion (15) is H, 3mm≤H≤25mm.
9. The heating plate assembly according to claim 1, wherein: The heating plate assembly includes at least one of the following features: a) the disc cavity (13) comprises a disc cavity bottom surface (131) and a disc cavity side surface (132) surrounding the disc cavity bottom surface (131); the disc cavity side surface (132) comprises a bottom edge connected to the disc cavity bottom surface (131) and a top edge relative to the bottom edge; an angle formed by a tangent plane passing through the top edge and the bottom edge and the disc cavity bottom surface (131) is a, 90 degrees ≤ a ≤ 170 degrees; b) along the axial direction of the blade shaft (52), the plurality of blades include a lowest blade tip (5311), and the lowest blade tip (5311) is located in the disc cavity (13); the disc cavity (13) includes a disc cavity bottom surface (131) and a disc cavity side surface (132); The distance between the top of the first heating element (21) and the bottom surface (131) of the disc cavity is L2, the distance between the lowest knife tip (5311) and the bottom surface (131) of the disc cavity is L1, and 0.25≤L1 / L2≤0.75; c) the disc cavity (13) comprises a disc cavity bottom surface (131) and a disc cavity side surface (132) surrounding the disc cavity bottom surface (131); along the radial direction of the blade shaft (52), the distance between the lowest blade tip (5311) of the plurality of blades and the disc cavity side surface (132) is P1; the disc cavity side surface (132) is inclined toward the outside of the disc body (1), and the width of its projection on the radial plane of the blade shaft (52) is P2, and 0.1≤P1 / P2≤0.6; d) The disc cavity (13) includes a disc cavity bottom surface (131) and a disc cavity side surface (132) surrounding the disc cavity bottom surface (131), wherein the disc cavity side surface (132) is inclined toward the outside of the disc body (1) and includes an arcuate surface, and the center of the arcuate surface is located on the rotation center line of the knife assembly (5) or deviates from the rotation center line of the knife assembly (5).
10. A food processor, characterized in that: The food processor includes a driving device, a control panel, and a heating plate assembly (10) according to any one of claims 1 to 9. The control panel controls the driving device to drive the multiple blades to rotate, and is also electrically connected to the first heating element (21) and the second heating element (22) to control the heating of the first heating element (21) and the second heating element (22).