Heating disc and food processor

Abstract

The utility model relates to a heating plate and a food processor. The heating disc comprises a disc body and a heating part. The plate body is used for making contact with food materials. The heating part comprises a heating pipe and a heat conduction piece, the heating pipe serves as an insert and is integrally formed with the heat conduction piece, the disc body is provided with a plurality of positioning parts, the heat conduction piece is provided with a plurality of positioning matching parts matched with the positioning parts in a one-to-one correspondence mode, one of the positioning parts and the positioning matching parts is a positioning hole, and the other one of the positioning parts and the positioning matching parts is a positioning hole. One of the positioning holes is a heat conduction piece, the other one is a hot-melt positioning core, the disc body is welded with the heat conduction piece, and in the welding state, the positioning core is melted and seals the positioning holes. According to the scheme, the processing difficulty of the heating disc is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of small household appliances, and more specifically, to a heating plate and a food processor. Background Art

[0002] Some heating-type food processors include a heating plate located at the bottom of the cup body. The heating plate includes a welded heating tube, a heat conducting plate, and a plate body. When the heating tube is energized, it generates heat, which is then transferred to the plate body through the heat conducting plate and then to the food. The heating tube, heat conducting plate, and plate body need to be positioned separately during welding, which increases the processing difficulty. Poor welding also affects the heating efficiency. Summary of the Invention

[0003] The present application provides a heating plate and a food processor, which can reduce the difficulty of processing the heating plate.

[0004] A heating plate, comprising:

[0005] The plate is used for contact with food;

[0006] The heating part includes a heating tube and a heat conductor. The heating tube is integrally formed with the heat conductor as an insert. The disk body is provided with a plurality of positioning parts. The heat conductor is provided with a plurality of positioning matching parts that correspond one-to-one with the plurality of positioning parts. One of the positioning parts and the positioning matching parts is a positioning hole, and the other is a heat-meltable positioning core. The disk body is welded to the heat conductor. In the welded state, the positioning core melts and seals the positioning hole.

[0007] In this application, the heating tube and heat conductor are integrally formed to form the heating element, which is then welded to the plate as a whole. Prior to welding, only the heat conductor and plate need to be positioned, reducing the difficulty of manufacturing the heating plate. Furthermore, the positioning hole is combined with a heat-fusible positioning core, which melts after welding. This not only achieves positioning but also seals the positioning hole through melting, making the heating plate manufacturing process simpler and more convenient.

[0008] Optionally, the hardness of the material of the disk body is greater than the hardness of the material of the heat conducting element; and / or

[0009] The disk body is configured as a stainless steel disk body, and the heat conducting member is configured as an aluminum alloy heat conducting member. The disk body does not need to be coated or hard-oxidized.

[0010] Optionally, the heat conducting member is disc-shaped, comprising a base located in the center and side panels located around the periphery. The heating pipes are disposed in the side panels, and the disc body is disposed within a recessed cavity defined by the base and side panels. The disc body is welded to the base and / or side panels. This arrangement allows the disc body to be housed within the recessed cavity, and after welding, its relative position to the heat conducting member is more stable. Furthermore, the disc body can be welded to at least one of the base and side panels, thereby increasing the welding area and thereby improving heat transfer efficiency.

[0011] Optionally, the side panel includes a bottom end connected to the periphery of the tray base and a top end located above the tray base. The outer surface of the top end is provided with a protruding annular flange extending circumferentially along the top end. The heating pipe is disposed within the annular flange. The annular flange includes a lower end surface located below the heating pipe. The shortest distance between the lower end surface and the inner surface of the tray base is H, where 0 < H ≤ 25 mm. This configuration appropriately reduces the thickness of the side panel, making the wall thickness of the side panel around the heating pipe more uniform and improving heat transfer.

[0012] Optionally, the bottom of the plate has a thickness D, 0.5 mm ≤ D ≤ 5 mm. A relatively small thickness of the bottom of the plate can appropriately reduce heat loss and improve heating efficiency.

[0013] Optionally, the tray body includes a bottom wall located in the center region and side walls connected to the edges of the bottom wall. The bottom wall is configured as a circular bottom wall, and the heat conducting member is intersected by a plane defined by the central axis of the bottom wall. The intersection of this plane and the inner surface of the side walls is an arcuate curve convex away from the central axis, or an oblique line gradually away from the central axis from the bottom wall. With this configuration, the diameter of the top of the side wall is greater than the diameter of the bottom wall, and the tray body has a tapered structure that is larger at the top and smaller at the bottom, which is beneficial for preventing the bottom from becoming sticky.

[0014] Optionally, the angle formed between the line connecting the lowest point and the highest point of the intersection line and the bottom wall is α, 90°≤α≤160°. If the angle is of appropriate size, the inclination of the side wall toward the outside is appropriate accordingly.

[0015] Optionally, the heating plate is further provided with a stirring blade, comprising a blade shaft and a first blade disposed on the blade shaft. The blade shaft is rotatably mounted at the center of the plate bottom, extending from the side of the plate bottom facing away from the plate body. The first blade is located within the plate body. The distance between the end of the first blade and the bottom wall along the axial direction of the blade shaft is L1, and the distance between the top end of the heat conductor and the bottom wall along the axial direction of the blade shaft is L2, with 1 / 4 ≤ L1: L2 ≤ 3 / 4. This proportional size allows for an appropriate gap between the first blade and the bottom wall, and the stirring of the first blade prevents the bottom from becoming sticky and avoids contact with the bottom of the plate body.

[0016] Optionally, 8mm≤L1≤15mm, 6mm≤L2≤20mm. In this configuration, L1 and L2 are relatively small, which can ensure an appropriate gap between the first blade and the bottom wall and an appropriate height of the side wall, thereby ensuring high heat transfer efficiency.

[0017] Optionally, 5mm≤L1≤25mm, 6mm≤L2≤60mm. In this configuration, L1 and L2 are relatively large, which can ensure an appropriate gap between the first blade and the bottom wall and an appropriate height of the side wall, thereby ensuring high heat transfer efficiency.

[0018] Optionally, the distance between the end of the first blade and the side wall along the radial direction of the blade axis is P1,

[0019] In the orthographic projection along the axial direction of the blade axis, the single-side dimension of the side wall in the radial direction of the blade axis is P2, 1 / 10≤P1:P2≤3 / 5. This proportional dimension ensures that the first blade has an appropriate gap from the side wall of the disc body to avoid contact with the side wall of the disc body.

[0020] Optionally, 3mm≤P1≤25mm, 5mm≤L2≤60mm. This size can ensure an appropriate gap between the first blade and the side wall of the disc.

[0021] A food processor, comprising:

[0022] base;

[0023] A cup assembly is assembled above the machine base, and the cup assembly includes a cup body, a cup base, and a heating plate as described above. The bottom of the cup body is provided with an opening, and the heating plate is assembled to the cup base and is sealed to the cup body at the opening. The cup base is also connected to the bottom of the cup body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is an exploded view of a food processor shown in an exemplary embodiment of the present application;

[0025] Figure 2 is an exploded view of a cup assembly shown in an exemplary embodiment of the present application;

[0026] Figure 3 yes Figure 2 An exploded view of the heating plate and stirring blade shown in FIG;

[0027] Figure 4 is a cross-sectional view of the heating portion;

[0028] Figure 5 This is a schematic diagram of the positioning and coordination of the disc body and the heating part;

[0029] Figure 6 This is a cross-sectional view of the heating plate and stirring blade in the assembled state;

[0030] Figure 7 This is another cross-sectional view of the heating plate and stirring blade in the assembled state. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] Please refer to Figure 1 , Figure 1 An exploded view of a food processor 100 is shown according to an exemplary embodiment of the present application.

[0034] The present application provides a food processor 100, which includes a base 10 and a cup assembly 20. The cup assembly 20 is assembled above the base 10. For example, the cup assembly 20 is detachably assembled above the base 10. The cup assembly 20 includes a cup body 21 and a cup cover 22. The cup cover 22 covers the mouth of the cup body 21.

[0035] Please refer to Figure 2 , Figure 2 An exploded view of a cup assembly 20 is shown in accordance with an exemplary embodiment of the present application.

[0036] The cup body 21 includes a cup body 210, a heating plate 211 and a cup base 212. The bottom of the cup body 210 is provided with an opening. The heating plate 211 is assembled at the bottom of the cup body 210 and is sealed with the cup body 210 at the opening. The two together form a cup cavity, which is used to hold food.

[0037] The cup holder 212 supports and is connected to the bottom of the cup body 210, and the heating plate 211 is fixed in the cup holder 212. The cup holder 212 includes a bottom shell 2120 located at the bottom, and an upper coupler 213 is provided on the bottom shell. The upper coupler 213 is used to electrically connect to the lower coupler (not shown in the figure) of the machine base 10. A cup handle 2100 is provided on the side of the cup body 210. The cup handle 2100 includes an inner handle 2100a integrally formed with the cup body 210 and an outer handle 2100b separately provided from the cup body 210. The outer handle 2100b covers the inner handle 2100a. The outer handle 2100b can be made of a material with a low thermal conductivity to prevent burns.

[0038] exist Figure 2 In the embodiment shown, the cup assembly 20 also includes a stirring knife 23, which is rotatably disposed on the heating plate 211. The blade shaft of the stirring knife 23 passes through the heating plate 211 and is used to engage with the motor shaft in the machine base 10. The blades of the stirring knife 23 are located in the cup cavity and are used to whip and crush the food.

[0039] Please refer to Figures 3 to 5 , Figure 3 for Figure 2 Exploded view of the heating plate 211 and the stirring blade 23 shown in FIG. Figure 4 2 is a cross-sectional view of the heat generating portion 26 . Figure 5 It is a schematic diagram showing the positioning and matching of the disc body 25 and the heating portion 26.

[0040] like Figure 3 As shown, the heating plate 211 includes a plate body 25 and a heating portion 26. The plate body 25 serves as the bottom of the cup body 210 and is used to contact the food. The heating portion 26 can generate heat and, in contact with the plate body 25, transfer heat to the plate body 25. The heating plate 211 also includes a sealing ring 27, a thermostat 28, and a temperature sensor 29. The sealing ring 27 is used to seal the gap between the plate body 25 and the cup body 210 at the open end. The thermostat 28 can control the power supply of the heating portion 26 according to the temperature threshold, and the temperature sensor 29 is used to detect the temperature within the cup cavity.

[0041] like Figure 4 As shown, the heating part 26 includes a heating pipe 260 and a heat conducting member 261, wherein the heating pipe 260 is formed integrally with the heat conducting member 261 as an insert, for example, by a die-casting process. Figure 4 In the embodiment shown, the heat conducting member 261 is in the shape of a disk, and the shape of the upper surface of the heat conducting member 261 matches the shape of the lower surface of the disk body 25. The upper surface of the heat conducting member 261 contacts the lower surface of the disk body 25 for heat transfer. Of course, in other embodiments, the heat conducting member 261 can be set to other shapes, such as a ring. The heat conducting member 261 is not limited to Figure 4 The structure shown in .

[0042] like Figure 5 As shown, the disk body 25 is provided with a plurality of positioning parts 250, and the heat conducting member 261 is provided with a plurality of positioning matching parts 2600 that match the plurality of positioning parts 250 one by one. One of the positioning parts 250 and the positioning matching parts 2600 is a positioning hole, and the other is a heat-meltable positioning core. The disk body 25 and the heat conducting member 261 are welded. In the welding state, the positioning core melts and seals the positioning hole. Figure 5 In the illustrated embodiment, the positioning portion 250 on the disk body 25 is configured as a positioning hole, and the positioning matching portion 2600 on the heat conducting member 261 is configured as a positioning core.

[0043] As can be seen from the above description, the heating tube 260 and the heat conductor 261 are integrally formed to form the heating portion 26, which is welded as a whole to the plate body 25. Prior to welding, it is only necessary to position the heat conductor 261 and the plate body 25, thus reducing the difficulty of processing the heating plate 211. Furthermore, the use of a structure in which the positioning hole is matched with a heat-meltable positioning core allows the positioning core to melt after welding, thus achieving both positioning and sealing the positioning hole through the melting of the positioning core, making the processing of the heating plate 211 simpler and more convenient.

[0044] In one embodiment, the hardness of the material of the tray body 25 is greater than the hardness of the material of the heat conductor 261. This configuration eliminates the need for coating or hard oxidation treatment of the tray body 25. In this embodiment, the tray body 25 is configured as a food-grade stainless steel tray body, and the heat conductor 261 is configured as an aluminum alloy heat conductor. The aluminum alloy heat conductor 261 has good heat transfer properties, while the stainless steel tray body 25 has high hardness.

[0045] Please refer to Figure 6 , Figure 6 It is a cross-sectional view of the heating plate 211 and the stirring blade 23 in an assembled state.

[0046] In one embodiment, the heat conducting member 261 is in the shape of a disc, and includes a disc bottom 2610 located in the central area and a side circumference 2611 located in the surrounding edge area. The side circumference 2611 is in a tubular structure, which can be a cylindrical tube or a tapered tube with the small end facing downward. The heating pipe 260 is arranged in the side circumference 2611, and the disc body 25 is arranged in a concave cavity surrounded by the disc bottom 2610 and the side circumference 2611. The disc body 25 is welded to the disc bottom 2610 and / or the side circumference 2611. With such a configuration, the disc body 25 is accommodated in the concave cavity, and its relative position with the heat conducting member 261 after welding is more stable. In addition, the disc body 25 can be welded to at least one of the disc bottom 2610 and the side circumference 2611, which can increase the welding area and thereby improve the heat transfer efficiency.

[0047] In one embodiment, the side panel 2611 includes a bottom end 2611a connected to the periphery of the tray base 2610 and a top end 2611b located above the tray base 2610. The outer surface of the top end 2611b is provided with a protruding annular flange 2611c extending circumferentially along the top end. The heating pipe 260 is disposed within the annular flange 2611c. The annular flange 2611c includes a lower end surface 2611d located below the heating pipe 260. The minimum distance between the lower end surface 2611d of the annular flange 2611c and the inner surface of the tray base 2610 is H, where 0 < H ≤ 25 mm. Specifically, the distance between the lower end surface 2611d and the inner surface of the tray base 2610 can be set to 5 mm, 10 mm, 15 mm, 20 mm, or 25 mm, but is not limited thereto. This configuration appropriately reduces the thickness of the side panels 2611, making the wall thickness of the side panels 2611 more uniform around the heating tubes 260 and improving heat transfer. In this embodiment, the lower end surface 2611d is flat and parallel to the inner surface of the tray bottom 2610. The distance between the lower end surface 2611d and the inner surface of the tray bottom 2610 is uniform.

[0048] In one embodiment, the thickness of the tray bottom 2610 is D, where 0.5 mm ≤ D ≤ 5 mm. Furthermore, 0.5 mm ≤ D ≤ 3 mm. In specific embodiments, the thickness of the tray bottom 2610 can be set to, but is not limited to, 0.5 mm, 1 mm, 2 mm, 3 mm, 4 mm, or 5 mm. The relatively small thickness of the tray bottom 2610 can appropriately reduce heat loss and improve heating efficiency.

[0049] Please refer to Figure 7 , Figure 7 This is another cross-sectional view of the heating plate 211 and the stirring blade 23 in the assembled state.

[0050] In one embodiment, the disk body 25 includes a bottom wall 251 and side walls 252 connected to the four edges of the bottom wall 251, wherein the shape of the disk body 25 is adapted to the shape of the heat conductor 261 to ensure the fit of the contact surface when the two are welded, and the disk body 25 is welded to the upper surface of the heat conductor 261.

[0051] The bottom wall 251 is configured as a circular bottom wall. The plane containing the central axis O of the bottom wall 251 intersects the heat conducting member 261. The intersection line A of this plane and the inner surface of the side wall 2611 is an arc-shaped curve convex away from the central axis O, or an oblique line gradually away from the central axis O from the bottom wall 251. With this configuration, the diameter of the top of the side wall 252 is greater than the diameter of the bottom wall 251, and the dish body 25 has a tapered shape that is larger at the top and smaller at the bottom, which helps prevent the bottom from becoming sticky.

[0052] In one embodiment, the angle α formed between the line L connecting the lowest point B and the highest point C of the intersection line A and the bottom wall 251 is 90°≤α≤160°. This angle is appropriately sized, and accordingly, the inclination of the side wall 252 toward the outside is appropriately sized. Furthermore, 105°≤α≤135°. In a specific embodiment, α can be 90°, 100°, 105°, 110°, 120°, 130°, 135°, 140°, 150°, or 160°, but is not limited thereto.

[0053] Please continue to refer to Figure 7 In one embodiment, the heating plate 211 is further provided with a stirring blade 23. The stirring blade 23 includes a blade shaft 230 and a first blade 231 provided on the blade shaft 230. The blade shaft 230 is rotatably mounted at the center of the bottom wall 251 and the plate bottom 2610, and extends from the side of the plate bottom 2610 facing away from the bottom wall 251. The first blade 231 is located above the plate body 25. The axis of the blade shaft 230 coincides with the central axis O.

[0054] The distance between the end of the first blade 231 and the bottom wall 251 along the axial direction of the blade shaft is L1, and the distance between the uppermost end of the heat conductor 261 and the bottom wall 251 along the axial direction of the blade shaft is L2, wherein 1 / 4≤L1:L2≤3 / 4. This proportional size can ensure an appropriate gap between the first blade 231 and the bottom wall 251. The stirring of the first blade 231 can prevent the bottom from sticking, avoid contact with the bottom wall 251, and ensure high heat transfer efficiency. Furthermore, 0.3≤L1:L2≤0.6. L1:L2 can be 0.25, 0.3, 0.4, 0.5, 0.6, or 0.75.

[0055] Specifically, in one embodiment, 8mm≤L1≤15mm, and 6mm≤L2≤20mm. For example, L1 can be set to, but is not limited to, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, or 15mm. L2 can be set to, but is not limited to, 6mm, 10mm, 12mm, 14mm, 16mm, 18mm, or 20mm. With this configuration, L1 and L2 are relatively small, ensuring an appropriate gap between the first blade 231 and the bottom wall 251 of the disk body 25 and an appropriate height of the sidewall 252, thereby ensuring high heat transfer efficiency.

[0056] In one embodiment, 5mm≤L1≤25mm, and 6mm≤L2≤60mm. For example, L1 can be set to 5mm, 8mm, 12mm, 14mm, 16mm, 18mm, 20mm, or 25mm, but is not limited thereto. L2 can be set to 6mm, 10mm, 20mm, 30mm, 40mm, 50mm, or 60mm, but is not limited thereto. With this configuration, L1 and L2 are relatively large, ensuring an appropriate gap between the first blade 231 and the bottom wall 251 of the disk body 25 and an appropriate height of the sidewall 252, thereby ensuring high heat transfer efficiency.

[0057] In one embodiment, the distance between the tip of the first blade 231 and the disk body 25 along the blade axis radial direction is P1. In the orthographic projection along the blade axis axial direction, the single-side dimension of the sidewall 252 along the blade axis radial direction is P2, and 1 / 10 ≤ P1:P2 ≤ 3 / 5. This proportional dimension ensures an appropriate gap between the first blade 231 and the sidewall 252 of the disk body 25, preventing contact with the side of the disk body 25. Furthermore, 0.15 ≤ P1:P2 ≤ 0.4. P1:P2 can be 0.1, 0.15, 0.2, 0.3, 0.4, 0.5, or 0.6.

[0058] In one embodiment, 3 mm ≤ P1 ≤ 25 mm, and 5 mm ≤ P2 ≤ 60 mm. This dimension allows for an appropriate clearance between the first blade 231 and the sidewall 252 of the disk 25. For example, P1 can be set to 3 mm, 5 mm, 10 mm, 15 mm, 20 mm, or 25 mm, but is not limited thereto. P2 can be set to 5 mm, 10 mm, 20 mm, 30 mm, 40 mm, 50 mm, or 60 mm, but is not limited thereto.

[0059] In one embodiment, the mixing blade 23 may include multiple blades, such as a second blade, a third blade, etc. The multiple blades can be arranged axially along the blade shaft, or symmetrically arranged in pairs about the axis of the blade shaft. The specific setting can be selected according to the actual application scenario.

[0060] exist Figure 7 In the illustrated embodiment, the tray body 25 is further provided with a bent portion 253 provided on the outer periphery, and the bent portion 253 is used for positioning and cooperating with the cup holder 212 .

[0061] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A heating plate, characterized in that: include: a plate body (25), for contacting with food; The heating part (26) includes a heating tube (260) and a heat-conducting member (261). The heating tube (260) is formed integrally with the heat-conducting member (261) as an insert. The disk body (25) is provided with a plurality of positioning parts (250). The heat-conducting member (261) is provided with a plurality of positioning matching parts (2600) that match the plurality of positioning parts (250) one by one. One of the positioning parts (250) and the positioning matching parts (2600) is a positioning hole, and the other is a heat-meltable positioning core. The disk body (25) and the heat-conducting member (261) are welded. In the welded state, the positioning core melts and seals the positioning hole.

2. The heating plate according to claim 1, characterized in that The hardness of the material of the disk (25) is greater than the hardness of the material of the heat conducting member (261); and / or The disk body (25) is configured as a stainless steel disk body, and the heat conducting member (261) is configured as an aluminum alloy heat conducting member.

3. The heating plate according to claim 1, wherein: The heat conducting member (261) is in the shape of a disk, comprising a disk bottom (2610) located in a central area and side enclosures (2611) located in surrounding edge areas; the heating pipe (260) is arranged on the side enclosures (2611); the disk body (25) is arranged in a concave cavity enclosed by the disk bottom (2610) and the side enclosures (2611); and the disk body (25) is welded to the disk bottom (2610) and / or the side enclosures (2611).

4. The heating plate according to claim 3, characterized in that The side circumference (2611) includes a bottom end (2611a) connected to the edges of the bottom (2610) and a top end (2611b) located above the bottom (2610); the outer surface of the top end (2611b) is provided with a protruding annular flange (2611c) extending circumferentially along the top end; the heating tube (260) is arranged in the annular flange (2611c); the annular flange (2611c) includes a lower end surface (2611d) located below the heating tube (260); the shortest distance between the lower end surface (2611d) and the inner surface of the bottom (2610) is H, 0<H≤25mm; and / or The thickness of the plate bottom (2610) is D, 0.5mm≤D≤5mm.

5. The heating plate according to claim 3, characterized in that The tray body (25) includes a bottom wall (251) located in the central area and side walls (252) connected to the edges of the bottom wall (251). The bottom wall (251) is configured as a circular bottom wall. The heat conducting member (261) is cut with a plane where the central axis of the bottom wall (251) is located, and the intersection line between the plane and the inner surface of the side wall (252) is an arc curve convex away from the central axis, or an oblique line gradually away from the central axis from the bottom wall (251).

6. The heating plate according to claim 5, characterized in that The angle formed between the line connecting the lowest point and the highest point of the intersection line and the bottom wall (251) is α, and 90°≤α≤160°.

7. The heating plate according to claim 5, characterized in that The heating plate (211) is also provided with a stirring blade (23), and the stirring blade (23) includes a blade shaft (230) and a first blade (231) provided on the blade shaft (230). The blade shaft (230) is rotatably mounted at the center of the plate bottom (2610) and extends from the side of the plate bottom (2610) facing away from the plate body (25). The first blade (231) is located inside the plate body (25). The distance between the end of the first blade (231) and the bottom wall (251) along the axial direction of the blade shaft is L1. The distance between the uppermost end of the heat conducting member (261) and the bottom wall (251) along the axial direction of the blade shaft is L2, and 1 / 4≤L1:L2≤3 / 4.

8. The heating plate according to claim 7, characterized in that 8mm≤L1≤15mm, 6mm≤L2≤20mm; or 5mm≤L1≤25mm, 6mm≤L2≤60mm.

9. The heating plate according to claim 7, characterized in that The distance between the end of the first blade (231) and the side wall (252) along the radial direction of the blade axis is P1. In the orthographic projection along the axial direction of the knife axis, the single-side size of the side wall (252) in the radial direction of the knife axis is P2, 1 / 10≤P1:P2≤3 / 5; and / or, 3mm≤P1≤25mm, 5mm≤L2≤60mm.

10. A food processor, characterized in that: include: Machine base (10); A cup assembly (20) is assembled above the machine base (10), and the cup assembly (20) includes a cup body (210), a cup seat (212), and a heating plate (211) as described in any one of claims 1 to 9, wherein the cup seat (212) is connected to the bottom of the cup body (210), and the bottom of the cup body (210) is provided with an opening, and the heating plate (211) is assembled to the cup seat (212) and is sealed to the cup body (210) at the opening.

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