Heating disc assembly and cooking utensil
By incorporating a combination of heat exchange channels and heat-conducting components into the heating plate assembly, the problem of scorching caused by uneven heating is solved, achieving temperature uniformity and shortening cooking time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-03-10
AI Technical Summary
In existing heating plate assemblies, the part near the wiring terminal generates less heat and forms a cold zone, while the part far from the wiring terminal generates more heat and forms a hot zone, resulting in uneven plate temperature and burnt bottom. Existing technologies cannot effectively solve this problem by reducing power.
The heating element, heat-conducting element, and plate are stacked in sequence, and a heat exchange channel is set in the heat-conducting element. Both ends of the heat exchange channel are covered by the plate and the hot end to ensure 0.4≤s/S≤1.2. The heat at the cold end is transferred through the heat-conducting element, and the heat at the hot end is transferred to the plate through the heat exchange channel. The high conductivity of the heat-conducting element is used to achieve temperature uniformity.
It achieves uniform temperature distribution within the pan, preventing scorching, and does not require reducing the heating power of the heating plate assembly, resulting in shorter cooking times.
Smart Images
Figure CN223979723U_ABST
Abstract
Description
Technical Field
[0001] This application relates to small household appliances, and more particularly to heating plate assemblies and cooking utensils. Background Technology
[0002] Cooking appliances typically use heating plate assemblies to heat food. These assemblies consist of a plate and heating elements. However, the heating elements generate heat unevenly; the portion near the wiring terminals generates less heat, forming a cold zone, while the portion further away from the wiring terminals generates more heat, forming a hot zone. During cooking, the portion of the plate corresponding to the hot zone gets hotter, leading to food burning.
[0003] Existing technologies typically reduce the power of the heating plate assembly to reduce scorching, but this results in longer cooking times and does not effectively prevent scorching. Utility Model Content
[0004] The purpose of this application is to disclose a heating plate assembly and a cooking appliance. The heating plate assembly helps to prevent scorching and reduces cooking time.
[0005] In a first aspect, this application discloses a heating plate assembly. The heating plate assembly includes a plate body, a heat-conducting element, and a heating element. The heating element includes a cold end and a hot end; the heating element, the heat-conducting element, and the plate body are sequentially overlapped; the heating plate assembly is provided with a heat exchange channel. The heat exchange channel extends through the heat-conducting element; both ends of the heat exchange channel are covered by the plate body and the hot end; the projected area of the heat exchange channel on the plate body is s, and the area of the heat exchange channel obstructed by the hot end is S, where 0.4 ≤ s / S ≤ 1.2. The heat from the cold end is transferred to the plate body via the heat-conducting element; the heat from the hot end is transferred to the plate body via the heat exchange channel.
[0006] As described above, since the heating element, the heat-conducting element, and the plate are arranged in a sequentially overlapping manner, the heat from the cold end is transferred to the corresponding part of the plate corresponding to the cold end through the heat-conducting element. Because the heat exchange channel runs through the heat-conducting element, and both ends of the heat exchange channel are covered by the hot end and the plate, and the heat exchange velocity is 0.4 ≤ s / S ≤ 1.2, the heat from the hot end is also transferred to the corresponding part of the plate corresponding to the hot end through the heat exchange channel. Although the heat output of the cold end is less than that of the hot end, heat is transferred faster in the heat-conducting element than in the air of the heat exchange channel (i.e., the heat conduction capacity of the heat-conducting element is greater than that of the heat exchange channel). Ultimately, the temperature of the part of the plate corresponding to the cold end is equal to or only slightly different from the temperature of the part corresponding to the hot end, preventing the formation of separate cold and hot zones. The plate is heated evenly, which helps reduce or avoid scorching. Because this helps reduce or avoid scorching, the heating power of the heating plate assembly does not need to be reduced, resulting in a relatively shorter cooking time.
[0007] In some embodiments, the shape of the heat exchange channel is the same as the shape of the hot end.
[0008] As described above, due to the identical shape, the heat from the hot end can be transferred to the plate body through the heat exchange channel, which is beneficial for the plate body to be heated evenly and helps to reduce or avoid the phenomenon of burning at the bottom.
[0009] In some embodiments, the hot end and the heat exchange channel are both arc-shaped along the circumference of the heating plate assembly; the central angle corresponding to the heat exchange channel is greater than or equal to the central angle corresponding to the hot end, and the difference between the two central angles is a, where 0 degrees ≤ a ≤ 10 degrees.
[0010] As described above, since both the hot end and the heat exchange channel are arc-shaped, and the central angle corresponding to the heat exchange channel is greater than or equal to the central angle corresponding to the hot end, and the difference 'a' of the central angles satisfies 0 degrees ≤ a ≤ 10 degrees, on the one hand, the shape of the hot end matches the shape of the heat exchange channel, and the heat from the hot end can be transferred to the disk body through the heat exchange channel, making the disk body heat-evenly and helping to reduce or avoid the phenomenon of burning at the bottom; on the other hand, the arc shape is longer than the straight shape, increasing the heat conduction length of the air along the circumference, which is more conducive to the slow transfer of heat from the hot end to the disk body. Ultimately, this is conducive to the uniform heating of the disk body and helps to reduce or avoid the phenomenon of burning at the bottom.
[0011] In some embodiments, along the direction toward the disk body, the hot end includes a hot end top surface, a portion of which is in contact with the heat-conducting element, and another portion of which covers the heat exchange channel.
[0012] As described above, since a portion of the top surface of the hot end is in contact with the heat-conducting element, and another portion of the top surface of the hot end covers the heat exchange channel, combined with 0.4 ≤ s / S ≤ 1.2, a portion of the heat from the hot end of the heating element is transferred to the disk body through the air in the heat exchange channel, while the other portion is transferred to the disk body through the heat-conducting element. The heat-conducting element has a higher thermal conductivity than air, which helps to transfer the heat from the hot end to the disk body in a timely manner, preventing the hot end from melting due to overheating. This is because if all the heat from the hot end were transferred through the air, the slower heat transfer would likely lead to the hot end melting due to insufficient heat transfer.
[0013] In some embodiments, the heat exchange channel includes a notch located at the edge of the heat-conducting element.
[0014] As described above, the heat exchange channel includes a notch, simplifying the structure of the heat-conducting component and facilitating its manufacture. This shape of heat-conducting component makes assembly with the hot end of the heating element easier, allowing another part of the heating element to more easily cover the heat exchange channel. When the notch is arc-shaped, its longer length compared to a straight notch increases the circumferential heat conduction length, facilitating slower heat transfer from the hot end to the plate. Ultimately, this promotes more uniform heating of the plate and helps reduce or avoid scorching.
[0015] In some embodiments, the heat exchange channel includes a through groove located in the heat-conducting element, with the outline of the heat-conducting element as the outer direction, the through groove includes an outer side wall, and the outer side wall and the outline of the heat-conducting element form a fitting portion; the fitting portion is in contact with the top surface of the hot end.
[0016] As described above, the heat exchange channel includes the through groove, which simplifies the structure of the heat-conducting component and facilitates manufacturing. This shape of heat-conducting component makes assembly with the hot end top surface of the heating element easier, allowing another part of the heating element to more easily cover the heat exchange channel. When the through groove is arc-shaped, its longer length compared to a straight notch increases the circumferential heat conduction length, which is more conducive to the slower transfer of heat from the hot end to the plate. Ultimately, this promotes uniform heating of the plate and helps reduce or avoid scorching.
[0017] In some embodiments, the other portion of the top surface of the hot end is a covering surface, the width of the covering surface is w1, and the width of the top surface of the hot end is W; 1 / 2 ≤ w1 / W ≤ 2 / 3.
[0018] As set up above, since 1 / 2≤w1 / W≤2 / 3, the width of the contact between the hot end and the heat-conducting component is sufficient, which can better prevent the hot end from melting while ensuring that the plate is heated evenly.
[0019] In some embodiments, the through groove includes an inner sidewall, and another portion of the top surface of the hot end is a covering surface. The covering surface and the inner sidewall form a partition opening, and the heat exchange channel separates the hot end and the inner sidewall through the partition opening.
[0020] As described above, by setting the partition opening, the hot end is separated from the interior of the heat-conducting component, preventing the heat from the hot end from being transferred radially into the interior of the heat-conducting component, thus avoiding high-temperature areas on the plate and helping to reduce or avoid the phenomenon of burning at the bottom.
[0021] In some embodiments, the width of the opening is H, where 1mm ≤ H ≤ 2mm, along a direction parallel to the covering surface.
[0022] As described above, since the width H of the partition opening satisfies 1mm ≤ H ≤ 2mm, it further ensures that no high-temperature areas appear on the disk body, which helps to reduce or avoid scorching. If H is larger, the covering surface will be narrower, the contact surface will be relatively wider, and more heat from the hot end will be transferred to the disk body through the heat-conducting component, which is not conducive to reducing or avoiding scorching.
[0023] Secondly, this application discloses a cooking utensil. The cooking utensil includes a cooking cup and any of the aforementioned heating plate components, the heating plate component being located at the bottom of the cooking cup and forming a food processing space with the cooking cup.
[0024] As described above, the cooking appliance has at least the beneficial effects of the heating plate assembly, which will not be elaborated further. Attached Figure Description
[0025] Figure 1 This is an exploded view of the first heating plate assembly of this application;
[0026] Figure 2 yes Figure 1 The heating plate assembly shown is a cross-sectional view in its assembled state;
[0027] Figure 3 yes Figure 1 A top view of the heat-conducting component of the heating plate assembly shown;
[0028] Figure 4 This is an exploded view of the second type of heating plate assembly in this application;
[0029] Figure 5 yes Figure 4 The heating plate assembly shown is a cross-sectional view in its assembled state;
[0030] Figure 6 yes Figure 4 A top view of the heat-conducting component of the heating plate assembly shown;
[0031] Figure 7 This is a bottom view of the heating plate assembly in related technologies. Detailed Implementation
[0032] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0033] If the embodiments of this application contain terms relating to directional indications or positional relationships (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 relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.
[0034] See Figure 7 The inventors of this application, in analyzing the cause of the scorching phenomenon in the heating plate assembly, discovered that the heating element 3 includes a cold end 31 and a hot end 32. The cold end 31 is the part of the heating element 3 near the terminal 3101. The hot end 32 is connected to the cold end 31 and is the part away from the terminal 3101. The heating element 3 is, for example, a heating tube. The cold end 31 generates less heat and forms a cold area on the plate body 1. The hot end 32 generates more heat and forms a hot area on the plate body 1. Figure 7 In the diagram, the heating element 3 is arc-shaped, with the dotted line serving as the dividing line. The cold end 31 and the cold zone are both located below the dotted line. The hot end 32 and the hot zone are both located above the dotted line.
[0035] During the cooking process, the temperature of the hot zone is higher than that of the cold zone, which causes the food on plate 1 to burn (known in the industry as burnt bottom).
[0036] To address the aforementioned problems, this application... Figure 1 and Figure 2 The first heating plate assembly 10 is disclosed. Figure 3 and Figure 4A second type of heating plate assembly 10 is disclosed. The heating plate assembly 10 includes a plate body 1, a heat-conducting element 2, and a heating element 3. The heating element 3 includes a cold end 31 and a hot end 32. The heating element 3 can be a heating tube, etc., as long as it results in unequal heat generation at the cold end 31 and the hot end 32. The material of the plate body 1 is not limited. The plate body 1 can directly contact food, or a contact layer can be provided on the plate body 1, with the contact layer contacting the food. In this application, the material of the plate body 1 is stainless steel. The heating element 3, the heat-conducting element 2, and the plate body 1 are arranged in an overlapping manner, so that the heat from the cold end 31 can be transferred to the corresponding part of the plate body 1 and the cold end 31 through the heat-conducting element 2. The material of the heat-conducting element 2 is not limited, as long as it can conduct heat; for example, the heat-conducting element 2 is an aluminum plate made of aluminum. Regarding the layered arrangement, on the one hand, based on the function of the heat-conducting element 2, the heat-conducting element 2 may not be limited to a single layer as shown in the figure; on the other hand, there may be layers made of other materials between the heat-conducting element 2 and the cold end 31, and between the heat-conducting element 2 and the disk body 1.
[0037] See Figure 2 and Figure 5 The heating plate assembly 10 is provided with a heat exchange channel 21. The heat exchange channel 21 extends through the heat-conducting element 2 along the thickness direction of the heating plate assembly 10. Both ends of the heat exchange channel 21 are covered by the plate body 1 and the hot end 32. The projected area of the heat exchange channel 21 on the disk body 1 is s, and the area of the heat exchange channel 21 obstructed by the hot end 32 is S, where 0.4 ≤ s / S ≤ 1.2, for example, 0.4, 0.45, 0.5, 0.53, 0.55, 0.57, 0.6, 0.62, 0.65, 0.68, 0.7, 0.73, 0.75, 0.78, 0.8, 0.82, 0.85, 0.88, 0.9, 0.92, 0.95, 0.97, 1, 1.02, 1.05, 1.08, 1.1, 1.12, 1.15, 1.18, or 1.2. By providing the heat exchange channel 21, the heat from the hot end 32 is transferred to the corresponding part of the disk body 1 and the hot end 32 through the heat exchange channel 21. The obstruction can be complete or partial. Figure 5 The partial covering is shown. Based on the function of the heat exchange channel 21, one embodiment of the covering is that the heat exchange channel 21 extends from the hot end 32 through the heat-conducting element 2 to the disk body 1. Another embodiment of the covering is that the heat exchange channel 21 does not start from the hot end 32, but rather extends from another layer between the heat-conducting element 2 and the hot end 32, or does not extend to the disk body 1.
[0038] As described above, since the cold end 31, the heat-conducting element 2, and the plate 1 are arranged in an overlapping manner, the heat from the cold end 31 is transferred to the corresponding part of the plate 1 via the heat-conducting element 2. Because the heat exchange channel 21 runs through the heat-conducting element 2, and both ends of the heat exchange channel 21 are covered by the hot end 32 and the plate 1, and the heat exchange rate is 0.4 ≤ s / S ≤ 1.2, the heat from the hot end 32 is transferred to the corresponding part of the plate 1 via the heat exchange channel 21. Although the heat output of the cold end 31 is less than that of the hot end 32, the heat is transferred faster in the heat-conducting element 2 than in the air of the heat exchange channel 21 (i.e., the heat conduction capacity of the heat-conducting element 2 is greater than that of the heat exchange channel 21). Ultimately, the temperature of the part of the plate 1 corresponding to the cold end 31 is equal to or only slightly different from the temperature of the part corresponding to the hot end 32. There will be no cold area corresponding to the cold end 31 and a hot area corresponding to the hot end 32. The plate 1 is heated evenly, which helps to reduce or avoid scorching. Because it helps reduce or avoid scorching, there is no need to reduce the heating power of the heating plate assembly 10, and the cooking time is relatively short.
[0039] In some embodiments, the shape of the heat exchange channel 21 is the same as the shape of the hot end 32. This same shape is not limited to the arc shape shown in the figure. When the hot end 32 is serpentine, the heat exchange channel 21 is also serpentine. Of course, in other embodiments, the shape of the heat exchange channel 21 may differ from the shape of the hot end 32 (for example, the heat exchange channel 21 may be square, and the hot end 32 may be curved). In short, as long as the heat from the hot end 32 is transferred to the disk body 1 through the heat exchange channel 21, it is acceptable.
[0040] As described above, since the shapes are the same, the heat from the hot end 32 can be transferred to the plate 1 through the heat exchange channel 21, which is beneficial for the plate 1 to be heated evenly and helps to reduce or avoid the phenomenon of burning at the bottom.
[0041] See Figure 1 , Figure 3 , Figure 4 and Figure 6Along the circumference of the heating plate assembly 10, both the hot end 32 and the heat exchange channel 21 are arc-shaped (i.e., they have the same shape as described above). The central angle corresponding to the heat exchange channel 21 is greater than or equal to the central angle corresponding to the hot end 32. The difference between the two central angles is 'a', where 0 degrees ≤ a ≤ 10 degrees, for example, 0 degrees, 0.5 degrees, 1 degree, 1.3 degrees, 1.6 degrees, 2 degrees, 2.3 degrees, 2.5 degrees, 2.8 degrees, 3 degrees, 3.3 degrees, 3.8 degrees, 4 degrees, 4.3 degrees, 4.6 degrees, 4.8 degrees, 5 degrees, 5.2 degrees, 5.5 degrees, 5.7 degrees, 6 degrees, 6.2 degrees, 6.5 degrees, 6.8 degrees, 7 degrees, 7.3 degrees, 7.5 degrees, 7.8 degrees, 8 degrees, 8.2 degrees, 8.5 degrees, 8.8 degrees, 9 degrees, 9.2 degrees, 9.5 degrees, 9.8 degrees, or 10 degrees. Figure 1 and Figure 4 The diagram shows a heating plate assembly of 10, which includes a plate body 1, a heat-conducting component 2, and a heating component 3. The heat exchange channel 21 can be considered to be only provided on the heat-conducting component 2.
[0042] As described above, since both the hot end 32 and the heat exchange channel 21 are arc-shaped, and the central angle corresponding to the heat exchange channel 21 is greater than or equal to the central angle corresponding to the hot end, and the difference 'a' of the central angles satisfies 0 degrees ≤ a ≤ 10 degrees, on the one hand, the shape of the hot end 32 matches the shape of the heat exchange channel 21, and the heat from the hot end 32 can be transferred to the disk 1 through the heat exchange channel 21, which makes the disk 1 heat-uniform and helps to reduce or avoid the phenomenon of burning at the bottom; on the other hand, the arc shape is longer than the straight shape, which increases the heat conduction length of the air along the circumference, which is more conducive to the heat from the hot end 32 being transferred to the disk 1 more slowly. Ultimately, this is conducive to the uniform heating of the disk 1 and helps to reduce or avoid the phenomenon of burning at the bottom.
[0043] See Figure 3 and Figure 6 The central angle corresponding to the heat exchange channel 21 is A, where 60 degrees ≤ A ≤ 180 degrees, for example, 60 degrees, 62 degrees, 65 degrees, 68 degrees, 70 degrees, 75 degrees, 78 degrees, 80 degrees, 83 degrees, 85 degrees, 88 degrees, 90 degrees, 93 degrees, 95 degrees, 98 degrees, 100 degrees, 102 degrees, 105 degrees, 108 degrees, 110 degrees, 113 degrees, and 115 degrees. 118 degrees, 120 degrees, 123 degrees, 125 degrees, 128 degrees, 130 degrees, 135 degrees, 138 degrees, 140 degrees, 143 degrees, 145 degrees, 148 degrees, 150 degrees, 152 degrees, 155 degrees, 158 degrees, 160 degrees, 163 degrees, 165 degrees, 168 degrees, 170 degrees, 172 degrees, 175 degrees, 178 degrees, or 180 degrees.
[0044] See Figure 1 , Figure 2 , Figure 4 andFigure 5 Along the direction toward the disk body 1, the hot end 32 includes a hot end top surface 321. A portion of the hot end top surface 321 (shown as contact surface 3211 in the figure) is in contact with the heat-conducting element 2. This contact can be direct as shown in the figure, or indirect contact including other layers in between. Another portion of the hot end top surface 321 (shown as covering surface 3212 in the figure) covers the heat exchange channel 21.
[0045] As described above, due to its orientation towards the disk body, a portion of the top surface 321 of the hot end is in contact with the heat-conducting element 2, while another portion of the top surface 321 of the hot end covers the heat exchange channel 21. Combined with a coefficient of 0.4 ≤ s / S ≤ 1.2, a portion of the heat from the hot end 32 of the heating element 3 is transferred to the disk body 1 via the air, and another portion is transferred to the disk body 1 via the heat-conducting element 2. The heat-conducting element 2 has a higher thermal conductivity than air, which facilitates the timely transfer of heat from the hot end 32 to the disk body 1, preventing the hot end 32 from melting due to overheating. This is because if all the heat from the hot end 32 were transferred through the air, the slower heat transfer could lead to the hot end 32 melting due to delayed heat transfer.
[0046] See Figures 1 to 3 The heat exchange channel 21 includes a notch 211 located at the edge of the heat-conducting element 2. In embodiments of this application, the heating plate assembly 10 only includes a plate body 1, a heat-conducting element 2, and a heating element 3, and the heat exchange channel 21 is the notch 211. When there are other layers between the plate body 1 and the heat-conducting element 2, and / or between the heat-conducting element 2 and the heating element 3, the heat exchange channel 21 also includes a notch formed in the other layer. In short, in this embodiment, the heat exchange channel 21 is at least a notch 211 that extends through the edge of the heat-conducting element 2.
[0047] As described above, the heat exchange channel 21 includes a notch 211, which simplifies the structure of the heat conductor 2 and facilitates its manufacture. This shape of the heat conductor 2 makes assembly easier with the hot end top surface 321 of the heating element 3, allowing another part of the heating element 3 to more easily cover the heat exchange channel 21. When the notch is arc-shaped, the arc-shaped notch is longer than a straight notch, increasing the circumferential heat conduction length of the air. This facilitates a slower transfer of heat from the hot end 32 to the disk 1, ultimately resulting in more uniform heating of the disk 1 and reducing or preventing scorching.
[0048] See Figure 4 , Figure 5 and Figure 6 The heat exchange channel 21 includes a through groove 212 located in the heat-conducting element 2. With the contour edge of the heat-conducting element 2 as the outer edge (e.g., ...), the heat exchange channel 21 is... Figure 4(Arrow r points outwards) The through groove 212 includes an outer side wall 2121. The outer side wall 2121 and the contour edge of the heat-conducting element 2 form a fitting portion 213; the fitting portion 213 is in contact with the top surface 321 of the hot end (more specifically with the contact surface 3211).
[0049] As described above, the heat exchange channel 21 includes the through groove, which simplifies the structure of the heat-conducting element 2 and facilitates its manufacture. This shape of the heat-conducting element 2 makes it easier to assemble with the hot end top surface 321 of the heating element 3, allowing another part of the heating element 3 to more easily cover the heat exchange channel. When the through groove is arc-shaped, the arc-shaped through groove is longer than a straight notch, increasing the circumferential heat conduction length of the air. This facilitates a slower transfer of heat from the hot end 32 to the disk 1, ultimately resulting in more uniform heating of the disk 1 and reducing or preventing scorching.
[0050] See Figure 2 and Figure 5 When the contact surface 3211 of the hot end top surface 321 is in contact with the heat-conducting element 2, and the covering surface 3212 (that is, another part of the hot end top surface 321) covers the heat exchange channel 21, the width of the covering surface 3212 is w1 and the width of the hot end top surface 321 is W in the direction parallel to the heat-conducting element 2; 1 / 2≤w1 / W≤2 / 3.
[0051] As set up above, since 1 / 2≤w1 / W≤2 / 3, the width of the hot end 32 in contact with the heat-conducting component 2 is sufficient, which can better prevent the hot end 32 from melting while ensuring that the plate 1 is heated evenly.
[0052] See Figure 4 , Figure 5 and Figure 6 The through groove 212 includes an inner sidewall 2122. Another portion of the top surface 321 of the hot end is a covering surface 3212, and an opening 214 is formed between the covering surface 3212 and the inner sidewall 2122. The heat exchange channel 21 separates the hot end 32 from the inner sidewall 2122 through the opening 214. One function of this separation is to prevent heat from the hot end 32 from being radially transferred to the interior of the heat-conducting element 2; therefore, any function that can be achieved is acceptable.
[0053] As described above, by setting the partition opening 214, the hot end 32 is separated from the interior of the heat-conducting component 2, preventing the heat of the hot end 32 from being transferred radially into the interior of the heat-conducting component 2, thus avoiding high-temperature areas in the plate body 1 and helping to reduce or avoid the phenomenon of burning at the bottom.
[0054] See Figure 5Along the direction parallel to the covering surface 3212, the width of the partition opening 214 is H, 1mm≤H≤2mm, for example, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm or 2mm.
[0055] As described above, since the width H of the opening 214 satisfies 1mm≤H≤2mm, it further ensures that no high-temperature area appears on the disk body 1, which helps to reduce or avoid the phenomenon of burning. If H is larger, the covering surface 3212 will be narrower, the contact surface 3211 will be relatively wider, and more heat from the hot end 32 will be transferred to the disk body 1 through the heat conductor 2, which is not conducive to reducing or avoiding the phenomenon of burning.
[0056] This application also discloses a cooking utensil. The cooking utensil includes a cooking cup and any of the aforementioned heating plate assemblies, the heating plate assembly being located at the bottom of the cooking cup and forming a food processing space with the cooking cup.
[0057] As described above, the cooking appliance has at least the beneficial effects of the heating plate assembly 10, which will not be elaborated further.
[0058] It should be noted that the technical solutions or 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 should be included within the scope of protection of this application.
Claims
1. A heat disc assembly, characterized by, The heat generating disc assembly comprises a disc body (1), a heat conducting member (2) and a heat generating member (3), wherein: The heat generating member (3) comprises a cold end (31) and a hot end (32); the heat generating member (3), the heat conducting member (2) and the disc body (1) are sequentially overlapped; the heat generating disc assembly (10) is provided with a heat exchange channel (21); The heat exchange channel (21) penetrates through the heat conducting member (2); both ends of the heat exchange channel (21) are covered by the disc body (1) and the hot end (32); the projection area of the heat exchange channel (21) on the disc body (1) is s, the area of the hot end (32) covering the heat exchange channel (21) is S, 0.4≤s / S≤1.2, the heat of the cold end (31) is transmitted to the disc body (1) through the heat conducting member (2); the heat of the hot end (32) is transmitted to the disc body (1) through the heat exchange channel (21).
2. The heat disc assembly of claim 1, wherein, The shape of the heat exchange channel (21) is the same as that of the hot end (32).
3. The heat disc assembly of claim 2, wherein, Along the circumference of the heat generating disc assembly (10), the hot end (32) and the heat exchange channel (21) are both arc-shaped; the corresponding central angle of the heat exchange channel (21) is greater than or equal to that of the hot end (32), the difference between the two central angles is a, 0°≤a≤10°.
4. The heat disc assembly of claim 1, wherein, Along the direction towards the disc body (1), the hot end (32) comprises a hot end top surface (321), a part of the hot end top surface (321) is attached to the heat conducting member (2), and another part of the hot end top surface (321) covers the heat exchange channel (21).
5. The heat disc assembly of claim 4, wherein, The heat exchange channel (21) comprises a notch (211) located at the edge of the heat conducting member (2).
6. The heat disc assembly of claim 4, wherein, The heat exchange channel (21) comprises a through groove (212) located at the heat conducting member (2); the through groove (212) comprises an outer side wall (2121) outside the profile edge direction of the heat conducting member (2), and a fit part (213) is formed between the outer side wall (2121) and the profile edge of the heat conducting member (2); the fit part (213) is attached to the hot end top surface (321).
7. A heat disc assembly according to any one of claims 4 to 6, wherein, The other part of the hot end top surface (321) is a covering surface (3212), the width of the covering surface (3212) is w1, and the width of the hot end top surface (321) is W; 1 / 2≤w1 / W≤2 / 3.
8. The heat disc assembly of claim 6, wherein, The through groove (212) comprises an inner side wall (2122), the other part of the hot end top surface (321) is a covering surface (3212), and a separation opening (214) is formed between the covering surface (3212) and the inner side wall (2122), the heat exchange channel (21) separates the hot end (32) and the inner side wall (2122) through the separation opening (214).
9. The heat disc assembly of claim 8, wherein, Along the direction parallel to the covering surface (3212), the width of the separation opening (214) is H, 1mm≤H≤2mm.
10. A cooking appliance characterized by, The cooking appliance comprises a cooking cup and the heating disc assembly (10) according to any one of claims 1 to 9, which is located at the bottom of the cooking cup and encloses a food processing space with the cooking cup.