Heating disc assembly and food processor

Abstract

The utility model relates to a heating disc assembly and a food processor. The heating disc assembly comprises a heating disc, a heating piece and a heat conduction piece. The heating plate comprises a contact face used for making contact with food materials. The heating element is arranged on one side, opposite to the contact surface, of the heating disc, the heating element can generate heat after being electrified, the heating element comprises a first heating area and a second heating area, and the heat of the first heating area is higher than that of the second heating area. The heat conduction piece is arranged between the heating piece and the heating disc and comprises a first heat conduction part corresponding to the first heating area and a second heat conduction part corresponding to the second heating area, and the thickness of the first heat conduction part is equal to that of the second heat conduction part. And the first heat conduction part is arranged between the first heating area and the heating disc. The heat insulation piece, the heat conduction piece and the heating disc are arranged in a stacked mode and correspond to the first heating area, and the shape of the heat insulation piece is matched with that of the first heating area. The heating disc assembly is balanced in heat and small in bottom pasting risk.

Description

Technical Field

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

[0002] Current food processors typically use heating elements, but these elements suffer from uneven heat distribution. For example, the area near the two terminals receives less heat, creating a cold zone, while the area between the terminals receives more heat, forming a hot zone. When cooking, food in these hot zones is prone to burning. Summary of the Invention

[0003] This application provides a heating plate assembly and a food processor. The heating plate assembly provides more even heat distribution across all parts, reducing the risk of food burning.

[0004] A heating plate assembly, comprising:

[0005] Heating plate, including contact surfaces for contacting food;

[0006] A heating element is disposed on the side of the heating plate facing away from the contact surface. The heating element can generate heat when energized. The heating element includes a first heating area and a second heating area, wherein the heat of the first heating area is higher than that of the second heating area.

[0007] A heat-conducting component is disposed between the heating element and the heating plate. The heat-conducting component includes a first heat-conducting portion corresponding to the first heating area and a second heat-conducting portion corresponding to the second heating area. The first heat-conducting portion and the second heat-conducting portion have the same thickness. The first heat-conducting portion is disposed between the first heating area and the heating plate, and the second heat-conducting portion is disposed between the second heating area and the heating plate.

[0008] A heat insulation component is stacked on top of the heat-conducting component and the heating plate, and is disposed corresponding to the first heating area. The shape of the heat insulation component is adapted to the first heating area.

[0009] The heating plate assembly and food processor provided in this application transfer heat from the first heating zone to the heating plate via the first heat-conducting part, and heat from the second heating zone to the heating plate via the second heat-conducting part. The heat insulation component is provided corresponding to the first heating zone and is stacked with the heat-conducting part and the heating plate. The heat insulation component can block or slow down the heat transfer from the first heating zone, so that the overall heat difference of the heating plate assembly is small. This allows the food in the food processing cavity to be heated more evenly, and the risk of burning is reduced.

[0010] Optionally, the surface of the first heat-conducting part facing the heating element and the surface of the second heat-conducting part facing the heating element are flush; the heat insulation member is disposed below the first heat-conducting part and in contact with the surface of the first heat-conducting part facing the heating element. In this embodiment, the heat insulation member is in direct contact with the first heating area and the first heat-conducting part, used to block or slow down the heat transfer of the first heating area, thereby reducing the heat transferred to the first heat-conducting part and ensuring that the heating plate is heated evenly.

[0011] Optionally, the heat insulation element is disposed between the first heat-conducting part and the heating plate. The two side surfaces of the heat insulation element are in contact with the first heat-conducting part and the heating plate, respectively, which can also reduce heat transfer and make the heating plate heatd evenly.

[0012] Optionally, the heat insulation element is disposed on the contact surface. The heat insulation element thickens the portion of the heating plate corresponding to the first heating area, thereby achieving heat insulation and preventing localized overheating of the heating plate.

[0013] Optionally, the thermal conductivity of the insulation element is lower than that of the heat-conducting element. The lower the thermal conductivity, the greater the thermal resistance, and the greater the ability of the insulation element to block or slow down heat transfer, which is more conducive to achieving thermal balance in the food processing cavity.

[0014] Optionally, the insulation element is a solid component. Solid insulation elements have high strength, are not easily damaged, and have good insulation performance.

[0015] Optionally, the heat insulation element is configured as a hollow component. In this way, the heat insulation element forms a heat transfer cavity, and an air layer is formed inside the heat transfer cavity, which slows down heat transfer, increases thermal resistance, and improves the heat insulation effect.

[0016] Optionally, when the heat insulation component is a hollow member and is located between the first heat-conducting part and the heating plate, the heat insulation component and the heating plate or the first heat-conducting part together form a heat transfer cavity; or when the heat insulation component is a hollow member and is located on the contact surface, the heat insulation component and the heating plate together form a heat transfer cavity. In this way, the heat insulation component is a hollow member with an opening on one side, which is simple to manufacture. The side with the opening is covered by the first heat-conducting part or closed by the heating plate, thereby forming a heat transfer cavity and increasing thermal resistance.

[0017] Optionally, the heat insulation element extends around the center of the heating plate in an arc-shaped strip structure. This allows the heat insulation element to cover the first heating area, resulting in better heat insulation.

[0018] Optionally, the central angle corresponding to the heat insulation element is β, where 30°≤β≤270°. Within this angle range, heat from the first heating zone can be effectively blocked, preventing localized overheating.

[0019] Optionally, when the heat insulation element is disposed on the contact surface, the upper surface of the heat insulation element has rounded corners at its four edges, and the upper surface smoothly transitions from the central region to the four peripheral regions. This improves the smoothness of the upper surface of the heat insulation element, which not only facilitates cleaning but also prevents food residue from accumulating on the upper surface 340 of the heat insulation element 34.

[0020] Optionally, the thickness of the central region of the insulation component is D, where 0.5mm ≤ D ≤ 3mm. This prevents the insulation component from being too thin and melting through.

[0021] Optionally, the contact surface is provided with multiple protrusions. These protrusions can, on the one hand, thicken the heating plate and improve the prevention of scorching; on the other hand, they can separate the food from the contact surface, reducing the contact area and making cleaning easier.

[0022] A food processor includes a cup body and a heating plate assembly as described in any of the preceding claims, the heating plate assembly being assembled at the bottom of the cup body and forming a food processing chamber together with the cup body.

[0023] The food processor also includes a mixing blade, which is rotatably mounted in the food processing chamber to blend the food within. The heating plate assembly provides even heat distribution, minimizing the risk of food burning. This food processor also features a blending function, making it suitable for various applications such as preparing purees and rice pastes. Attached Figure Description

[0024] Figure 1 This is a cross-sectional view of the cup assembly of a food processor shown in an exemplary embodiment of this application;

[0025] Figure 2 This is a bottom view of the heating element assembly;

[0026] Figure 3 This is an exploded view of the heating element assembly;

[0027] Figure 4 This is a cross-sectional view of the heating element assembly;

[0028] Figure 5 This is a schematic diagram of the thermal insulation component;

[0029] Figure 6 This is a top view of the heating element assembly. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] Please refer to Figure 1 , Figure 1 A cross-sectional view of the cup assembly 100 of a food processor shown as an exemplary embodiment of this application.

[0033] The cup assembly 100 includes a cup body 10, a cup base 20, a heating plate assembly 30, and a cup lid 40. The cup body 10 is hollow, forming a food processing cavity 101 within the hollow space, which is used to hold food. The cup base 20 is installed at the bottom of the cup body 10 to support the cup body 10, allowing it to be placed stably on a countertop. The gap between the cup body 10 and the cup base 20 can be sealed with a sealing ring. The cup lid 40 covers the top of the cup body 10.

[0034] The heating plate assembly 30 is housed and assembled within the cup holder 20, serving as the base of the cup body 10. The heating plate assembly 30 and the cup body 10 together form a food processing cavity 101. A sealing ring may be provided between the heating plate assembly 30 and the cup body 10 to seal the gap between them.

[0035] exist Figure 1 In the illustrated embodiment, the cup assembly 100 further includes a stirring blade 50, which is rotatably disposed in the food processing chamber 101 to agitate the food within the chamber. Specifically, the blade shaft of the stirring blade 50 passes through and is rotatably mounted on the heating plate assembly 30. The axial direction of the blade shaft is aligned with the height direction of the cup body 10. The blades of the stirring blade 50 are connected to the blade shaft and located within the food processing chamber 101, used for crushing and agitating ingredients. The stirring blade 50 enables the cup assembly 100 to have a agitation function, allowing it to prepare various applications such as soy milk and rice paste.

[0036] It should be noted that the food processor may also include a main unit (not shown). For example, the main unit may be a base-type main unit, which is assembled at the bottom of the cup assembly 100 and can be detachably assembled with the cup assembly 100. Of course, the main unit may also be fixedly connected to the cup assembly 100 as an integrated structure. Alternatively, the main unit may be a head-type main unit, which is assembled at the top of the cup assembly 100.

[0037] Please refer to Figures 2 to 4 , Figure 2 This is a bottom view of the heating plate assembly 30. Figure 3 This is an exploded view of the heating plate assembly 30. Figure 4 yes Figure 3 The image shows a cross-sectional view of the heating plate assembly 30.

[0038] The heating plate assembly 30 includes a heating plate 31, a heating element 32, a heat-conducting element 33, and a heat-insulating element 34. The heating plate 31 includes a contact surface 310 for contacting food, which is the bottom surface of the food processing cavity 101. The heating plate 31, heat-conducting element 33, heat-insulating element 34, and heating element 32 can be welded together using a lead soldering process, but are not limited to this method. The heating plate 31 can be made of food-grade stainless steel, the heat-conducting element 33 can be made of aluminum, and the heat-insulating element 34 can be made of stainless steel, but are not limited to this method.

[0039] The heating element 32 is disposed on the side of the heating plate 31 facing away from the contact surface 310. The heating element 32 is generally annular and includes a first terminal (L terminal) and a second terminal (N terminal). The L terminal is used to connect the live wire, and the N terminal is used to connect the neutral wire. The heating element 32 generates heat when energized. The heating element 32 includes a first heating area 321 and a second heating area 322. The heat generated by the first heating area 321 is higher than that generated by the second heating area 322.

[0040] exist Figure 2 In the embodiment shown, the region of the heating element 32 near the L end and N end is the second heating region 322. Figure 2 The unshaded area on the left side of the middle section), the middle area of ​​the heating element 32 is the first heating zone 321 ( Figure 2 (The shaded area on the right side). A gap exists between the two terminals of the heating element 32. Therefore, the area of ​​the heating element 32 near the L and N terminals is conducive to heat dissipation, and the heat generated here is relatively less than in the middle area. This results in the heating element 32 forming a first heating zone 321 and a second heating zone 322 with uneven heat distribution. It should be noted that the first heating zone 321 and the second heating zone 322 may differ depending on the structural form of the heating element 32.

[0041] A heat-conducting component 33 is disposed between the heating element 32 and the heating plate 31. The heat-conducting component 33 includes a first heat-conducting portion 331 corresponding to the first heating area 321 and a second heat-conducting portion 332 corresponding to the second heating area 322. The first heat-conducting portion 331 and the second heat-conducting portion 332 have the same thickness. The first heat-conducting portion 331 is disposed between the first heating area 321 and the heating plate 31, and the second heat-conducting portion 332 is disposed between the second heating area 322 and the heating plate 31, so that the heat transfer distance through the first heat-conducting portion 331 and the second heat-conducting portion 332 is the same, and the heat transfer efficiency of the two is the same.

[0042] The heat insulation component 34, the heat conduction component 33, and the heating plate 31 are stacked and arranged in a manner corresponding to the first heating zone 321. The shape of the heat insulation component 34 matches the shape of the first heating zone.

[0043] As described above, the heat from the first heating zone 321 is transferred to the heating plate 31 via the first heat-conducting part 331, and the heat from the second heating zone 322 is transferred to the heating plate 31 via the second heat-conducting part 332. The heat insulation component 34 is provided corresponding to the first heating zone 321 and is stacked with the heat-conducting part 33 and the heating plate 31. The heat insulation component 34 can block or slow down the heat transfer from the first heating zone 321, so that the overall heat difference of the heating plate assembly 30 is small. This makes the food in the food processing cavity 101 heat more evenly and reduces the risk of burning.

[0044] In this embodiment, the heat-conducting component 33 has a flat plate structure, with both the upper and lower surfaces being flat (i.e., without recesses), and the first heat-conducting part 331 and the second heat-conducting part 332 have the same thickness.

[0045] In one embodiment, the surface of the first heat-conducting portion 331 facing the heating element 32 and the surface of the second heat-conducting portion 332 facing the heating element 32 are flush; the heat insulation member 34 is disposed below the first heat-conducting portion 331 and in contact with the surface of the first heat-conducting portion 331 facing the heating element 32. In this embodiment, the heat insulation member 34 is in direct contact with the first heating area 321 and the first heat-conducting portion 331, and is used to block or slow down the heat transfer of the first heating area 321, thereby reducing the heat transferred to the first heat-conducting portion 331 and ensuring that the heating plate 31 is heated evenly.

[0046] In some other embodiments, the heat insulation member 34 is disposed between the first heat-conducting part 331 and the heating plate 31. That is, the two side surfaces of the heat insulation member 34 are in contact with the first heat-conducting part 331 and the heating plate 31 respectively, which can also reduce heat transfer and make the heating plate 31 heated evenly.

[0047] In this embodiment, the heat insulation element 34 is disposed on the contact surface 310. The heat insulation element 34 thickens the portion of the heating plate 31 corresponding to the first heating area 321, thereby achieving heat insulation and preventing local overheating of the heating plate 31.

[0048] In one embodiment, the thermal conductivity of the heat insulation element 34 is lower than that of the heat conduction element 33. The lower the thermal conductivity, the greater the thermal resistance, and the greater the ability of the heat insulation element 34 to block or slow down heat transfer, which is more conducive to achieving thermal balance in the food processing cavity 101.

[0049] In one embodiment, the heat insulation element 34 is a solid component. A solid heat insulation element 34 has high strength, is not easily damaged, and provides good heat insulation. In another embodiment, the heat insulation element 34 is a hollow component. In this way, a heat transfer cavity is formed inside the heat insulation element 34, and an air layer is formed within this cavity, resulting in slower heat transfer and greater thermal resistance.

[0050] In one embodiment, the heat insulation member 34 is disposed between the first heat-conducting part 331 and the heating plate 31. The heat insulation member 34 is a hollow member. In this case, the heat insulation member 34 is a hollow member with an opening on one side. The side of the heat insulation member 34 with the opening is covered by the first heat-conducting part 331 or closed by the heating plate 31, thereby forming a heat transfer cavity and increasing the thermal resistance.

[0051] In another embodiment, the heat insulation element 34 is disposed on the contact surface 310, and the side of the heat insulation element 34 with an opening is closed by the contact surface 310, thereby forming a heat transfer cavity and increasing the thermal resistance.

[0052] In one embodiment, such as Figure 3 As shown, the heat insulation element 34 extends around the center of the heating plate 31 and has an arc-shaped strip structure. In this way, the heat insulation element 34 covers the first heating area 321, resulting in better heat insulation.

[0053] In one embodiment, the central angle corresponding to the heat insulation element 34 is β, where 30°≤β≤270°. This angle β is set according to the first heating zone 321. Within this angle range, the heat from the first heating zone 321 can be effectively blocked, preventing local overheating. In an optional embodiment, the angle β can be set to 30°, 50°, 80°, 100°, 120°, 150°, 200°, 230°, or 270°, but is not limited to these.

[0054] In one embodiment, the thickness of the heat insulation element 34 is D, where 0.5mm ≤ D ≤ 3mm. This prevents the heat insulation element 34 from being too thin and melting through. In an alternative embodiment, the dimension D can be set to 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, or 3mm, but is not limited to these values.

[0055] Please refer to Figure 5 , Figure 5 This is the front view of the thermal insulation component 34.

[0056] In one embodiment, the heat insulation element 34 is disposed on the contact surface 310, and the upper surface 340 of the heat insulation element 34 has rounded corners at its periphery, and the upper surface 340 smoothly transitions from the central region to the periphery. This improves the smoothness of the upper surface 340, making it easier to clean and preventing food residue from accumulating on the upper surface 340 of the heat insulation element 34.

[0057] Please refer to Figure 6 , Figure 6 This is a top view of the heating plate assembly 30.

[0058] In one embodiment, the contact surface 310 of the heating plate 31 has a plurality of protrusions 310a. These protrusions 310a can, on the one hand, thicken the heating plate 31 and improve the prevention of food burning; on the other hand, the protrusions 310a can separate the food from the contact surface 310, reducing the contact area between the food and the contact surface 310 and facilitating cleaning. The protrusions 310a can be circular, but are not limited to this.

[0059] 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 heat disc assembly, characterized by, include: Heating plate (31), including contact surface (310) for contacting food; A heating element (32) is disposed on the side of the heating plate (31) facing away from the contact surface (310). The heating element (32) can generate heat when energized. The heating element (32) includes a first heating area (321) and a second heating area (322). The heat of the first heating area (321) is higher than that of the second heating area (322). A heat-conducting component (33) is disposed between the heating element (32) and the heating plate (31). The heat-conducting component (33) includes a first heat-conducting part (331) corresponding to the first heating area (321) and a second heat-conducting part (332) corresponding to the second heating area (322). The first heat-conducting part (331) and the second heat-conducting part (332) have the same thickness. The first heat-conducting part is disposed between the first heating area (321) and the heating plate (31), and the second heat-conducting part (332) is disposed between the second heating area (322) and the heating plate (31). A heat insulation component (34) is stacked on top of the heat conduction component (33) and the heating plate (31) and is disposed corresponding to the first heating area (321). The shape of the heat insulation component (34) matches the first heating area (321).

2. The heat disc assembly of claim 1, wherein, The surface of the first heat-conducting part (331) facing the heating element (32) and the surface of the second heat-conducting part (332) facing the heating element (32) are flush; the heat insulation member (34) is disposed below the first heat-conducting part (331) and is in contact with the surface of the first heat-conducting part (331) facing the heating element (32).

3. The heat disc assembly of claim 1, wherein, The heat insulation element (34) is disposed between the first heat-conducting part (331) and the heating plate (31); or The heat insulation element (34) is disposed on the contact surface (310).

4. The heat disc assembly according to any one of claims 1 to 3, wherein, The thermal conductivity of the heat insulation element (34) is less than that of the heat conduction element (33).

5. The heat disc assembly according to any one of claims 1 to 3, wherein, The heat insulation element (34) is configured as a solid component; or The heat insulation component (34) is configured as a hollow component.

6. The heat disc assembly of claim 5, wherein, The heat insulation component (34) is configured as a hollow component. When the heat insulation component (34) is disposed between the first heat-conducting part (331) and the heating plate (31), the heat insulation component (34) together with the heating plate (31) or the first heat-conducting part (331) forms a heat transfer cavity. Alternatively, if the heat insulation component (34) is configured as a hollow component and is located on the contact surface (310), the heat insulation component (34) and the heating plate (31) together form a heat transfer cavity.

7. The heat disc assembly according to any one of claims 1 to 3, wherein, The heat insulation element (34) extends around the center of the heating plate (31) and has an arc-shaped strip structure.

8. The heat disc assembly of claim 7, wherein, The central angle corresponding to the heat insulation component (34) is β, 30°≤β≤270°.

9. The heat disc assembly of claim 3, wherein, When the heat insulation element (34) is provided on the contact surface (310), the upper surface (340) of the heat insulation element (34) has rounded corners at its four edges, and the upper surface (340) smoothly transitions from the central region to the four edge regions.

10. The heat disc assembly according to any one of claims 1 to 3, wherein, The thickness of the heat insulation component (34) is D, where 0.5mm ≤ D ≤ 3mm.

11. The heat disc assembly according to any one of claims 1 to 3, wherein, The contact surface (310) is provided with a plurality of protrusions (310a).

12. A food processor, characterized in that, The food processor includes a cup body (10) and a heating plate assembly (30) as described in any one of claims 1 to 11. The heating plate assembly (30) is assembled at the bottom of the cup body (10) and together with the cup body (10) forms a food processing cavity (101). The food processor also includes a mixing blade (50), which is rotatably disposed in the food processing cavity (101) to mix the food in the food processing cavity (101).

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