Heating disc and food processor

Abstract

The application relates to a heating disc and a food processor. The heating disc comprises a disc body, a heating element and a heat-conducting plate. The disc body comprises a food material contact surface and a lower disc surface opposite to the food material contact surface. The heating element is arranged on the side of the disc body opposite to the food material contact surface, and the heating element can generate heat when electrified. The heating element comprises a first heating area and a second heating area, and the heat generation of the first heating area is higher than that of the second heating area. The heat-conducting plate is arranged between the disc body and the heating element, and the heat-conducting plate comprises an upper heat-conducting surface facing the disc body and a lower heat-conducting surface facing the heating element. An intermediate heat-conducting part is arranged between the upper heat-conducting surface and the lower heat-conducting surface and / or between the food material contact surface and the lower disc surface, and the intermediate heat-conducting part is provided with heat-conducting holes at least at the positions corresponding to the first heating area. The heating disc can reduce the risk of paste bottom.

Description

Technical Field

[0001] This application relates to the field of small household appliance technology, and more specifically, to a heating plate and a food processor. Background Technology

[0002] Some food processors have a heating element consisting of a stainless steel plate, a heat-conducting aluminum plate, and a heating element. When powered on, the heating element generates heat, which is transferred to the stainless steel plate via the heat-conducting aluminum plate, thus heating the food. However, because the heat-conducting aluminum plate is relatively thin, the area where it is in close contact with the heating element can generate localized high temperatures, causing food to easily burn and become difficult to clean. Summary of the Invention

[0003] This application provides a heating plate and a food processor that can reduce the risk of food burning.

[0004] A heating plate, comprising:

[0005] The plate body includes a food contact surface for contacting food and a lower plate surface facing away from the food contact surface;

[0006] A heating element is disposed on the side of the plate body opposite to the surface in contact with the food. The heating element can generate heat when powered on, and includes a first heating area and a second heating area. The heat generated by the first heating area is higher than that generated by the second heating area.

[0007] A heat-conducting plate is disposed between the plate and the heating element, the heat-conducting plate including an upper heat-conducting surface facing the plate and a lower heat-conducting surface facing the heating element;

[0008] An intermediate heat-conducting portion is provided between the upper heat-conducting surface and the lower heat-conducting surface and / or between the food contact surface and the lower plate surface, and a heat-conducting hole is provided at the part of the intermediate heat-conducting portion corresponding to the first heating zone.

[0009] The heating plate provided in this application has heat emitted by the heating element transferred to the plate body via a heat-conducting plate. At least one of the heat-conducting plates and / or the plate body has heat-conducting holes in the middle heat-conducting part corresponding to the first heating area. At least part of the heat generated in the first heating area is transferred through the heat-conducting holes. Since the heat transfer efficiency of the heat-conducting holes is low, the heat can be dispersed through the heat-conducting holes, thereby reducing the risk of burning.

[0010] Optionally, the intermediate heat-conducting portion has a honeycomb porous structure at least in the area corresponding to the first heating zone, and the pores of the honeycomb porous structure constitute the heat-conducting holes. The honeycomb porous structure has high porosity, resulting in better heat transfer reduction.

[0011] Optionally, at least the portion of the intermediate heat-conducting part corresponding to the first heating zone is made of foamed material. Foamed material has a loose structure, irregular pores, and high porosity, resulting in better heat transfer performance and also facilitating the lightweighting of the heating plate.

[0012] Optionally, the heat-conducting holes are laterally extending tubular holes. Laterally extending tubular holes disperse heat transfer, thereby mitigating heat generation.

[0013] Optionally, at least one end of the heat-conducting hole extends laterally through the intermediate heat-conducting portion. The heat-conducting hole can disperse some heat to the outside, enabling the heat-conducting plate to exchange heat with the outside environment.

[0014] Optionally, multiple heat-conducting holes are provided, with at least some of them arranged parallel to the disk body. Multiple heat-conducting holes can improve heat flow, thereby improving the heat exchange efficiency of the heat-conducting plate and resulting in better heat dispersion.

[0015] Optionally, the plurality of heat-conducting holes are arranged parallel to the disk body and divided into multiple groups, with each heat-conducting hole in each group arranged parallel to each other. This allows the heat in the first heating zone to be effectively dispersed, avoiding localized overheating.

[0016] Optionally, the heating element is annular, including two ends and a middle section located between the two ends. The middle section at least partially forms the first heating area. A plurality of heat-conducting holes are correspondingly disposed within a range of a central angle α corresponding to the middle section of the heating element, where 30°≤α≤180°. The multiple heat-conducting holes can be concentrated in the first heating area, resulting in better heat dissipation.

[0017] Optionally, the intermediate heat-conducting portion further includes auxiliary heat-conducting holes, which are laterally extending tubular holes that intersect and communicate with the heat-conducting holes. The auxiliary heat-conducting holes can further increase the area of ​​the heat-conducting holes and increase the flow path, thereby enhancing the heat dissipation effect.

[0018] Optionally, the heat-conducting hole is a vertically extending tubular hole, with both ends sealed by the upper heat-conducting surface and the lower heat-conducting surface, respectively. The vertically extending tubular hole can slow down heat transfer and prevent local overheating of the disk.

[0019] Optionally, multiple heat-conducting holes are provided, and these holes are spaced apart throughout the entire intermediate heat-conducting portion. The multiple vertically extending tubular holes can effectively slow down heat transfer across the entire heating element, further preventing localized overheating of the disc.

[0020] A food processor, comprising:

[0021] Host;

[0022] A cup assembly, assembled to the main unit, includes a cup body forming a cavity, the cup body including a heating plate as described in any of the preceding claims. This food processor has a low risk of food burning. Attached Figure Description

[0023] Figure 1This is a schematic diagram of a food processor shown in an exemplary embodiment of this application;

[0024] Figure 2 yes Figure 1 An exploded view of the cup assembly shown in the image;

[0025] Figure 3 yes Figure 1 The cross-sectional view of the cup assembly shown in the image;

[0026] Figure 4 This is an exploded view of the heating plate and the stirring blade;

[0027] Figure 5 This is a cross-sectional view of the heating plate and stirring blade in their assembled state;

[0028] Figure 6 This is a schematic diagram showing the arrangement of the heat-conducting holes relative to the heat-generating element;

[0029] Figure 7 This is another schematic diagram showing the formation of heat-conducting holes in the middle heat-conducting section;

[0030] Figure 8 This is a cross-sectional view of the heating plate and stirring blade assembled together, showing the heat conduction holes in the heat-conducting plate. Figure 7 The heat-conducting holes shown in the image;

[0031] Figure 9 This is another schematic diagram showing the formation of heat-conducting holes in the middle heat-conducting part. 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] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a food processor 100 shown as an exemplary embodiment of this application.

[0035] This application provides a food processor 100, which includes a main unit 10 and a cup assembly 20. The cup assembly 20 is assembled to the main unit 10, and the assembly method includes, but is not limited to, detachable assembly. The main unit 10 is located below the cup assembly 20, forming a base-type main unit 10.

[0036] Please refer to Figure 2 and Figure 3 , Figure 2 for Figure 1 An exploded view of the cup component 20 shown in the figure. Figure 3 yes Figure 1 The image shows a cross-sectional view of the cup assembly 20.

[0037] The cup assembly 20 includes a cup body 21 and a cup base 22 disposed at the bottom of the cup body 21. The cup body 21 includes a cup body 210 and a heating plate 212 connected to the bottom of the cup body 210. The cup body 210 and the heating plate 212 together form a cup cavity 200, which can hold food. The cup body 210 and the heating plate 212 can be sealed by a sealing ring 213 to prevent food leakage from the cup cavity 200. The cup body 210 may be provided with a handle 214 for easy handling. The cup body 210 includes, but is not limited to, a glass cup.

[0038] The cup holder 22 includes a cup holder housing 220 and a cup holder cover 222 disposed within the cup holder housing 220. The cup holder cover 222 is connected to the bottom of the cup holder housing 220 and is used to seal the opening at the bottom of the cup holder housing 220. The cup holder cover 222 is provided with a cup body coupler. The cup assembly 20 also includes a cup lid 23, which covers the top of the cup body 21. The cup lid 23 can be configured to screw onto the cup body 21, but is not limited to this configuration.

[0039] exist Figure 2 and Figure 3 In the embodiment shown, the cup assembly 20 also includes a stirring blade 26, which is rotatably mounted on the heating plate 212. The rotation axis of the stirring blade 26 is aligned with the height direction of the cup body 21. The blades of the stirring blade 26 are located inside the cup cavity 200 and are used to stir and crush food. The blade shaft of the stirring blade 26 is connected to a motor inside the main unit 10 to drive the stirring blade 26 to rotate.

[0040] Please refer to Figure 4 and Figure 5 , Figure 4 An exploded view of the heating plate 212 and the stirring blade 26. Figure 5 This is a cross-sectional view of the heating plate 212 and the stirring blade 26.

[0041] The heating plate 212 includes a plate body 2120, a heat-conducting plate 2122, and a heating element 2124. The plate body 2120, heat-conducting plate 2122, and heating element 2124 can be welded together. The plate body 2120 includes a food contact surface 2120a for contacting food and a lower plate surface 2120b facing away from the food contact surface 2120a. The plate body 2120, serving as the bottom of the cup cavity 200, can be made of food-grade stainless steel. A temperature sensor can be installed on the plate body 2120 for detecting its temperature.

[0042] A heating element 2124 is located on the side of the plate 2120 facing away from the food contact surface 2120a. The heating element 2124 generates heat when energized. In this embodiment, the heating element 2124 is approximately annular, including a first terminal (L terminal) and a second terminal (N terminal). The L terminal is used to connect to the live wire, and the N terminal is used to connect to the neutral wire. The heating element 2124 includes a first heating area 2124a and a second heating area 2124b. The heat generated by the first heating area 2124a is greater than that generated by the second heating area 2124b. The areas near the L terminal and N terminal at both ends of the heating element 2124 are the second heating area 2124b, and the middle area of ​​the heating element 2124 is the first heating area 2124a. A gap is left between the two terminals of the heating element 2124. Therefore, the area of ​​the heating element 2124 near the L and N terminals is conducive to heat dissipation, and the heat in this area is relatively smaller than that in the middle area. This results in the heating element 2124 forming a first heating area 2124a and a second heating area 2124b with uneven heat distribution. It should be noted that the first heating area 2124a and the second heating area 2124b may differ depending on the structural form of the heating element 2124.

[0043] A heat-conducting plate 2122 is located between the disk body 2120 and the heating element 2124, and is used to transfer the heat from the heating element 2124 to the disk body 2120. In some embodiments, the heat-conducting plate 2122 may be provided with multiple riveting holes for rivets to be inserted. The heat-conducting plate 2122 includes an upper heat-conducting surface 2122a facing the disk body 2120, a lower heat-conducting surface 2122b facing the heating element 2124, and an intermediate heat-conducting portion 2122c located between the upper heat-conducting surface 2122a and the lower heat-conducting surface 2122b. The intermediate heat-conducting portion 2122c is provided with heat-conducting holes 21220 at least at the portion corresponding to the first heating area 2124a. The intermediate heat-conducting portion (not shown) between the food contact surface 2120a and the lower plate surface 2120b of the plate body 2120 has heat-conducting holes 21220 at least corresponding to the first heating area 2124a. This application will take the provision of heat-conducting holes 21220 in the intermediate heat-conducting portion 2122c of the heat-conducting plate 2122 as an example for explanation.

[0044] As described above, the heat emitted by the heating element 2124 is transferred to the disk body 2120 via the heat-conducting plate 2122. At least one of the heat-conducting plate 2122 and / or the disk body 2120 has a heat-conducting hole 21220 in the middle heat-conducting part 2122c corresponding to the part of the first heating area 2124a. Therefore, at least part of the heat generated by the first heating area 2124a is transferred through the heat-conducting hole 21220. Since the heat transfer efficiency of the heat-conducting hole 21220 is low, the heat can be dispersed through the heat-conducting hole 21220, avoiding overheating of the part of the disk body 2120 corresponding to the first heating area 2124a and reducing the risk of burning.

[0045] It should be noted that heat conduction holes can also be provided in the middle heat conduction part 2122c corresponding to the second heating area 2124b.

[0046] Please refer to Figure 6 , Figure 6 This is a schematic diagram of the heat conduction hole 21220.

[0047] In one embodiment, the heat-conducting hole 21220 is configured as a laterally extending tubular hole. Here, "lateral" refers to a direction generally parallel to the upper heat-conducting surface 2122a. Figure 5 A tubular hole extending in the X direction (of the structure). The shape of the tubular hole is not limited; it can be round, square, triangular, polygonal, etc. The laterally extending tubular hole disperses heat transfer, thus slowing down heat dissipation.

[0048] In one specific embodiment where the heat-conducting hole 21220 is configured as a laterally extending tubular hole, at least one end of the heat-conducting hole 21220 laterally penetrates the intermediate heat-conducting portion 2122c. With this configuration, at least one end of the heat-conducting hole 21220 is connected to the outside, allowing it to disperse some heat to the outside, enabling heat exchange between the heat-conducting plate 2122 and the external environment. This reduces the heat exchange between the heat-conducting plate 2122 and the corresponding portion of the first heating zone 2124a, thereby preventing localized overheating and scorching of the plate 2120. In a more preferred embodiment, both ends of the heat-conducting hole 21220 are connected to the outside, further enhancing the heat dispersion effect.

[0049] In one specific embodiment where the heat-conducting holes 21220 are configured as laterally extending tubular holes, multiple heat-conducting holes 21220 are provided, at least a portion of which are arranged parallel to each other and parallel to the disk body 2120, and at least one end of each heat-conducting hole 21220 is connected to the outside. Thus, multiple heat-conducting holes 21220 can improve heat flow, thereby improving the heat exchange efficiency of the heat-conducting plate 2122 and resulting in better heat dispersion.

[0050] In this embodiment, the plurality of heat-conducting holes 21220 are parallel to the disk body 2120 and are divided into multiple groups, with each heat-conducting hole 21220 in each group arranged in parallel to each other. The multiple groups of heat-conducting holes 21220 can be distributed corresponding to the first heating zone 2124a, so that the heat of the first heating zone 2124a can be effectively dispersed and local overheating can be avoided.

[0051] exist Figure 6 In the illustrated embodiment, each group includes a plurality of parallel heat-conducting holes 21220, with the extending directions of the heat-conducting holes 21220 in adjacent groups intersecting. That is, the extending directions of the heat-conducting holes 21220 in each group are different, thus allowing for a reasonable arrangement of the plurality of heat-conducting holes 21220 according to the shape of the first heating area 2124a, facilitating heat dissipation between the heat-conducting plate 2122 and the corresponding portion of the first heating area 2124a. For example, the extending directions of the heat-conducting holes 21220 in adjacent groups can be perpendicular.

[0052] exist Figure 6 In the embodiment shown, the multiple heat conduction holes 21220 are divided into three groups. The middle group of heat conduction holes 21220 is set in the middle area of ​​the heating element 2124 and is perpendicular to the two groups of heat conduction holes 21220 on both sides. The two groups of heat conduction holes 21220 on both sides are set in parallel.

[0053] Of course, the placement of the heat conduction holes 21220 is not limited to... Figure 6 As shown in the figure. In some embodiments, the intermediate heat-conducting portion 2122c is further provided with auxiliary heat-conducting holes (not shown), which extend in a direction parallel to the upper heat-conducting surface 2122a and intersect and communicate with the heat-conducting hole 21220. The auxiliary heat-conducting holes can further increase the area of ​​the heat-conducting hole 21220 and increase the flow path, thereby enhancing the heat dissipation effect.

[0054] It should be noted that the heat conduction hole 21220 can be set in Figure 6 Within the range of α shown. Specifically, the heating element 2124 is annular, including two ends and a middle section located between the two ends, the two ends being the L end and the N end, respectively. The middle end at least partially forms a first heating zone, and a plurality of heat-conducting holes 21220 are correspondingly arranged within the range of the central angle α corresponding to the middle section of the heating element 2124, 30°≤α≤180°. The plurality of heat-conducting holes 21220 can be concentrated in the first heating zone 2124a, resulting in better heat dissipation. For example, α is the sum of the angles deflected clockwise and counterclockwise by α / 2 from the centerline of the heating element 2124. For example, α can be 30°, 45°, 60°, 90°, 120°, 135°, 180°, but is not limited to these.

[0055] Please refer to Figure 7 and Figure 8 , Figure 7 A schematic diagram of another embodiment in which a heat-conducting hole 21220 is formed for the intermediate heat-conducting portion 2122c. Figure 8 This is a cross-sectional view of the heating plate 212 and the stirring blade 26.

[0056] In another embodiment, the heat-conducting hole 21220 is configured as a vertically extending tubular hole, with both ends closed by the upper heat-conducting surface 2122a and the lower heat-conducting surface 2122b, respectively. Here, "vertical" refers to a direction approximately perpendicular to the upper heat-conducting surface 2122a. Figure 5 The heat-conducting hole 21220 extends in the Y direction. Specifically, the heat-conducting hole 21220 can be formed in the middle heat-conducting part 2122c by machining or integral casting. The heat-conducting hole 21220 can be a round hole, a square hole, a triangular hole, or other irregularly shaped hole. The vertically extending tubular hole can slow down heat transfer and prevent local overheating of the disk 2120.

[0057] In an optional embodiment, when the heat-conducting hole 21220 is a vertically extending tubular hole, multiple heat-conducting holes 21220 are provided, and the multiple heat-conducting holes 21220 are distributed at intervals in the intermediate heat-conducting portion 2122c, and are at least provided in the position corresponding to the first heating zone 2124a. The multiple vertically extending tubular holes can effectively slow down the heat transfer of the first heating zone 2124a, and further avoid local overheating of the disk body 2120.

[0058] In this embodiment, a plurality of heat-conducting holes 21220 are spaced apart throughout the intermediate heat-conducting portion 2122c. The plurality of vertically extending tubular holes can effectively slow down the heat transfer of the entire heating element 2124, further preventing the plate 2120 from overheating.

[0059] Please refer to Figure 9 , Figure 9 A schematic diagram of another embodiment in which a heat-conducting hole 21220 is formed for the intermediate heat-conducting portion 2122c.

[0060] In one embodiment, the intermediate heat-conducting portion 2122c, corresponding to the first heating zone 2124a, is provided with a honeycomb porous structure, and the pores of the honeycomb porous structure constitute the heat-conducting holes 21220. The honeycomb porous structure has high porosity, resulting in better heat transfer reduction. Specifically, the portion of the intermediate heat-conducting portion 2122c corresponding to the first heating zone 2124a is made of foamed material, including but not limited to foamed aluminum. Foamed materials have advantages such as loose structure, irregular pores, and high porosity, resulting in better heat transfer performance. The foamed material can form a large number of pores inside and out, which can serve as heat-conducting holes 21220, and also help to achieve a lightweight heating plate 212.

[0061] Alternatively, the heat-conducting plate 2122 may be provided with heat-conducting holes 21220 as described in the above embodiments at the locations corresponding to the first heating area 2124a and the second heating area 2124b. In this way, heat dissipation can be achieved through the heat-conducting holes 21220, ensuring that all parts of the plate 2120 are heated evenly.

[0062] As is known from the foregoing, the intermediate heat-conducting portion between the food contact surface 2120a and the lower plate surface 2120b may be provided with heat-conducting holes. The heat-conducting holes may be horizontally or vertically extending tubular holes or honeycomb holes. The heat-conducting holes on the plate body 2120 may also serve as heat dissipation or heat transfer pores, which can prevent the plate body 2120 from burning.

[0063] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any 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 heating plate, characterized in that, include: The plate body (2120) includes a food contact surface (2120a) for contacting food and a lower plate surface (2120b) facing away from the food contact surface (2120a); A heating element (2124) is disposed on the side of the plate body (2120) facing away from the food contact surface (2120a). The heating element (2124) can generate heat when energized, and includes a first heating area (2124a) and a second heating area (2124b). The heat generation of the first heating area (2124a) is higher than that of the second heating area (2124b). A heat-conducting plate (2122) is disposed between the plate (2120) and the heating element (2124). The heat-conducting plate (2122) includes an upper heat-conducting surface (2122a) facing the plate (2120) and a lower heat-conducting surface (2122b) facing the heating element (2124). An intermediate heat-conducting portion (2122c) is provided between the upper heat-conducting surface (2122a) and the lower heat-conducting surface (2122b) and / or between the food contact surface (2120a) and the lower plate surface (2120b); The intermediate heat-conducting portion (2122c) has heat-conducting holes (21220) at least at the location corresponding to the first heat-generating area (2124a).

2. The heating plate according to claim 1, characterized in that, The intermediate heat-conducting portion (2122c) has a honeycomb porous structure at least at the portion corresponding to the first heating zone (2124a), and the pores of the honeycomb porous structure constitute the heat-conducting holes (21220).

3. The heating plate according to claim 2, characterized in that, The intermediate heat-conducting portion (2122c) is made of foam material at least in the portion corresponding to the first heating zone (2124a).

4. The heating plate according to claim 1, characterized in that, The heat-conducting hole (21220) is a laterally extending tubular hole.

5. The heating plate according to claim 4, characterized in that, At least one end of the heat-conducting hole (21220) extends laterally through the intermediate heat-conducting portion (2122c).

6. The heating plate according to claim 5, characterized in that, Multiple heat-conducting holes (21220) are provided, and at least some of the heat-conducting holes (21220) are arranged parallel to the disk body (2120).

7. The heating plate according to claim 6, characterized in that, The multiple heat-conducting holes (21220) are arranged parallel to the disk body (2120) and divided into multiple groups, and the heat-conducting holes (21220) in each group are arranged in parallel to each other.

8. The heating plate according to claim 6, characterized in that, The heating element (2124) is annular, including two ends and a middle section located between the two ends. The middle section at least partially forms the first heating area (2124a). A plurality of heat-conducting holes (21220) are correspondingly arranged within the range of the central angle α corresponding to the middle section of the heating element (2124), where 30°≤α≤180°.

9. The heating plate according to any one of claims 4 to 8, characterized in that, The intermediate heat-conducting part (2122c) is also provided with auxiliary heat-conducting holes, which are laterally extending tubular holes and are cross-connected with the heat-conducting holes (21220).

10. The heating plate according to claim 1, characterized in that, The heat-conducting holes (21220) are vertically extending tubular holes. Multiple heat-conducting holes (21220) are provided and distributed at intervals. Both ends are closed by the upper heat-conducting surface (2122a) and the lower heat-conducting surface (2122b), respectively.

11. The heating plate according to claim 10, characterized in that, Multiple heat-conducting holes (21220) are spaced apart throughout the intermediate heat-conducting portion (2122c).

12. A food processor, characterized in that, include: Host (10); A cup assembly (20) is assembled to the host (10), the cup assembly (20) including a cup body (21) having a cup cavity (200) and the cup body (21) including a heating plate (212) as claimed in any one of claims 1 to 11.

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