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 disc cover. The heating disc comprises a disc face facing the food processing cavity. The heating element is arranged on one side, opposite to the disc 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 disc cover is arranged corresponding to the first heating area, the disc cover is fan-shaped and is a shell-shaped component, the peripheral edge of the disc cover is connected with the disc surface, and a heat transfer cavity is formed between the disc cover and the disc surface. The heating disc assembly is balanced in heat, and the risk of bottom pasting is small.

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 uniform heat distribution and reduces the risk of food burning.

[0004] A heating plate assembly, comprising:

[0005] Heating plate, including a plate surface for facing the food processing chamber;

[0006] A heating element is disposed on the side of the heating plate facing away from the plate surface. The heating element can generate heat when energized. The heating element includes 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.

[0007] A cover is provided corresponding to the first heating zone. The cover is fan-shaped and is a shell-shaped component. The cover is connected to the plate surface at its four edges, and a heat transfer cavity is formed between the cover and the plate surface.

[0008] The heating plate assembly and food processor provided in this application can reduce the heat transfer from the first heating zone to the plate cover by setting a heat transfer cavity in the first heating zone, so that the heat is relatively even and the local overheating is avoided, which would cause the bottom to burn.

[0009] Optionally, the cover includes an arc-shaped edge furthest from the center of the disc surface, and the arc-shaped edge is directly opposite the first heating area. This configuration not only covers the area on the disc surface directly opposite the first heating area, but also covers the area adjacent to the first heating area, resulting in better heat insulation. Simultaneously, the cover can absorb some heat, preventing the heating element from melting in the first heating area.

[0010] Optionally, the central angle corresponding to the disc cover is β, where 30°≤β≤270°. Within this angle range, the disc cover can be made to roughly match the circumferential length of the first heating zone, resulting in better heat insulation of the disc cover.

[0011] Optionally, the thermal conductivity of the cover is the same as that of the heating plate. Thus, corresponding to the first heating zone, the heating plate and cover can act as a double-layer heat barrier, further reducing the rate at which heat is transferred upwards from the first heating zone. Furthermore, the cover and heating plate can be made of the same material, facilitating procurement and manufacturing.

[0012] Optionally, both the lid and the heating plate are made of food-grade stainless steel. This material is low in cost, high in strength, and has a long service life.

[0013] Optionally, the heating plate assembly further includes a heat-conducting element disposed between the heating element and the heating plate, wherein the thermal conductivity of the heat-conducting element is greater than that of the heating plate. In this way, heat from both the first and second heating zones can be quickly transferred to the heat-conducting element, which itself can quickly exchange heat to reduce the heat difference and make the heat transferred to the heating plate more even.

[0014] Optionally, the heat-conducting element and the heat-generating element are configured as an integral structure. This can reduce the thermal resistance at the connection and improve the heat transfer rate.

[0015] Optionally, the plate surface is provided with multiple protrusions. These protrusions can, on the one hand, thicken the heating plate and improve the prevention of food burning; on the other hand, they can also separate the food from the plate surface, reducing the contact area between the food and the plate surface and making it easier to clean.

[0016] Optionally, the upper surface of the disc cover is provided with multiple protrusions. These protrusions can thicken the disc cover and also facilitate cleaning.

[0017] A food processor includes a cup body and a heating plate assembly as described in any of the preceding claims. The heating plate assembly is assembled at the bottom of the cup body, forming a food processing chamber together with the cup body. This heating plate assembly provides even heat distribution and minimizes the risk of food burning.

[0018] Optionally, the food processor also includes a mixing blade rotatably disposed in the food processing chamber to blend the food within the chamber. This food processor also features a blending function, making it suitable for various applications such as preparing slurries and rice pastes. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the cup assembly of a food processor shown in an exemplary embodiment of this application;

[0020] Figure 2 This is a bottom view of the heating element assembly;

[0021] Figure 3 This is an exploded view of the heating element assembly;

[0022] Figure 4 This is a cross-sectional view of the heating element assembly;

[0023] Figure 5 This is the front view of the disc cover;

[0024] Figure 6 This is a top view of the heating element assembly. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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 it, allowing the cup body 10 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.

[0029] 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.

[0030] exist Figure 1In 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 for crushing and agitating the ingredients. In one embodiment, the heating plate assembly 30 has a central hole at its center for the blade shaft to pass through.

[0031] 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 to the bottom of the cup assembly 100 and can be detachably assembled with the cup assembly 100. Alternatively, the main unit may be a head-type main unit, which is assembled to the top of the cup assembly 100.

[0032] Please refer to Figures 2 to 5 , 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 This is a cross-sectional view of the heating plate assembly 30. Figure 5 This is the front view of the cover 33.

[0033] The heating plate assembly 30 includes a heating plate 31, a heating element 32, and a plate cover 33. The heating plate 31 includes a plate surface 310 facing the food processing chamber. The heating element 32 is disposed on the side of the heating plate 31 facing away from the plate surface 310, and the heating element 32 generates heat when energized. The heating plate 31, the heating element 32, and the plate cover 33 can be welded together using welding processes such as lead soldering, but are not limited to these methods. The heating plate 31 can be a stainless steel plate, and the plate cover 33 can be a stainless steel cover, but are not limited to these methods.

[0034] The heating element 32 includes a first heating zone 321 and a second heating zone 322, wherein the heat of the first heating zone 321 is higher than that of the second heating zone 322. The heating element 32 is generally ring-shaped and includes a first terminal (L terminal) and a second terminal (N terminal), wherein the L terminal is used to connect to the live wire and the N terminal is used to connect to the neutral wire.

[0035] 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 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.

[0036] The cover 33 corresponds to the first heating zone 321. The cover 33 is fan-shaped and is a shell-shaped component. The cover 33 is connected to the disk surface 310 at its four edges. A heat transfer cavity 300 is formed between the cover 33 and the disk surface 310.

[0037] As can be seen from the above description, by setting a heat transfer cavity 300 in the first heating zone 321, the heat transfer from the first heating zone 321 to the plate cover 33 can be slowed down, so that the heat of the plate surface 310 corresponding to the second heating zone 322 is relatively balanced with the heat of the plate cover 33, thus avoiding local overheating and causing the bottom to burn.

[0038] In one embodiment, the cover 33 includes an arcuate edge 330 furthest from the center of the disc surface 310, which is directly opposite the first heating area 321. This configuration not only covers the area on the disc surface 310 directly opposite the first heating area 321, but also covers the area on the disc surface 310 adjacent to the first heating area 321, resulting in better heat insulation. Simultaneously, the cover 33 can absorb some heat, preventing the heating element 32 from melting in the first heating area 321.

[0039] In one embodiment, such as Figure 5 As shown, the central angle corresponding to the cover 33 is β, where 30°≤β≤270°. Within this angle range, the circumferential length of the cover 33 can be approximately matched with that of the first heating zone 321, resulting in better heat insulation of the cover 33. In an optional embodiment, the central angle β can be 30°, 60°, 90°, 100°, 120°, 150°, 180°, 200°, 240°, or 270°, but is not limited to these.

[0040] In one embodiment, the thermal conductivity of the cover 33 is the same as that of the heating plate 31. Thus, corresponding to the first heating zone 321, the heating plate 31 and the cover 33 can act as a double-layer heat barrier, further reducing the rate at which heat is transferred upwards from the first heating zone 321. Furthermore, the cover 33 and the heating plate 31 can be made of the same material, facilitating procurement and manufacturing.

[0041] In an alternative embodiment, both the lid 33 and the heating plate 31 are made of food-grade stainless steel, which is low in cost, high in strength, and has a long service life.

[0042] Please continue to refer to this. Figure 3 In one embodiment, the heating plate assembly 30 further includes a heat-conducting element 34 disposed between the heating element 32 and the heating plate 31. The heat-conducting element 34 can simultaneously contact both the first heating area 321 and the second heating area 322, and the thermal conductivity of the heat-conducting element 34 is greater than that of the heating plate 31. Thus, heat from both the first heating area 321 and the second heating area 322 can be quickly transferred to the heat-conducting element 34, which itself can quickly exchange heat to reduce the heat difference and make the heat transferred to the heating plate 31 more even.

[0043] In one embodiment, the heat-conducting element 34 and the heating element 32 are configured as an integral structure. This reduces the thermal resistance at the connection and improves the heat transfer rate. Of course, the heat-conducting element 34 can also be fixed to the heating element 32 by welding.

[0044] Please refer to Figure 6 , Figure 6 This is a top view of the heating plate assembly 30.

[0045] In one embodiment, the plate surface 310 is provided with a plurality of protrusions 310a. The plurality of protrusions 310a can, on the one hand, thicken the heating plate 31, improving the prevention of scorching; on the other hand, the protrusions 310a can also separate the food from the plate surface 310, reducing the contact area between the food and the plate surface 310, making it easier to clean. The protrusions 310a can be circular, but are not limited to this. Of course, protrusions can also be provided on the upper surface 331 of the plate cover 33, serving the same function as the protrusions 310a, and will not be elaborated further here.

[0046] 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 a plate surface (310) facing the food processing cavity; A heating element (32) is disposed on the side of the heating plate (31) facing away from the plate surface. The heating element (32) can generate heat when powered on. 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 cover (33) is provided corresponding to the first heating zone (321). The cover (33) is fan-shaped and a shell-shaped component. The cover (33) is connected to the disk surface (310) at its four edges. A heat transfer cavity (300) is formed between the cover (33) and the disk surface (310).

2. The heat disc assembly of claim 1, wherein, The cover (33) includes an arcuate edge (330) furthest from the center of the disc surface (310), which is directly opposite the first heating area (321).

3. The heat disc assembly of claim 1, wherein, The central angle corresponding to the disc cover (33) is β, 30°≤β≤270°.

4. The heat disc assembly of claim 1, wherein, The thermal conductivity of the cover (33) is the same as that of the heating plate (31).

5. The heat disc assembly of claim 1, wherein, Both the lid (33) and the heating plate (31) are made of food-grade stainless steel.

6. The heat disc assembly according to any one of claims 1 to 5, wherein, The heating plate assembly (30) further includes a heat-conducting element (34) disposed between the heating element (32) and the heating plate (31), wherein the thermal conductivity of the heat-conducting element (34) is greater than that of the heating plate (31).

7. The heat disc assembly of claim 6, wherein, The heat-conducting component (34) and the heat-generating component (32) are configured as an integral structure.

8. The heat disc assembly according to any one of claims 1 to 5, wherein, The disk surface (310) is provided with a plurality of protrusions (310a); and / or The upper surface (331) of the disc cover (33) is provided with a plurality of protrusions.

9. 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 8, wherein 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).

10. The food processor of claim 9, wherein, The food processor also includes a mixing blade (50), which is rotatably disposed in the food processing chamber (101) to mix the food in the food processing chamber (101).

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