Heating disc assembly and food processor
By introducing a layered structure of heat-conducting, heat-insulating, and heat-uniforming components into the heating plate assembly, and by setting heat exchange channels and gaps on the heat-insulating components, the problem of uneven heat distribution in the heating plate assembly is solved, thereby achieving heat uniformity and reducing the risk of scorching.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHAOXING SUPOR DOMESTIC ELECTRICAL APPLIANCE CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-21
AI Technical Summary
Existing food processor heating plate components suffer from uneven heat distribution, resulting in cold spots near the wiring terminals where heat is low, making it prone to burning.
It adopts a layered structure of heating plate, heat conduction component, heat insulation component and heat uniform component. By setting multiple heat exchange channels and intervals on the heat insulation component, combined with the high thermal conductivity of the heat uniform component, heat uniformity is achieved and the risk of scorching is reduced.
It achieves balanced heat distribution in the heating plate assembly, reduces scorching, and improves heating uniformity and ease of cleaning.
Smart Images
Figure CN224140660U_ABST
Abstract
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 that provides more even heat distribution and reduces or even eliminates the risk of food burning.
[0004] This application provides a heating plate assembly, including:
[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] Between the heating plate and the heating element, there are stacked heat-conducting components, heat-insulating components, and heat-uniforming components. The heat-insulating components and the heat-uniforming components are located between the heat-conducting components and the heating plate. The thermal conductivity of the heat-insulating components is less than that of the heat-conducting components and the heat-uniforming components. The heat-insulating components include a first heat-insulating portion corresponding to the first heating area. The first heat-insulating portion has multiple heat exchange channels and a spacer between adjacent heat exchange channels.
[0008] The heating plate assembly and food processor provided in this application have multiple heat exchange channels and intervals in the first heat insulation part, which makes the thermal resistance of the first heat insulation part relatively large. During the heat transfer process, the heat of the first heating zone can be slowed down by the first heat insulation part, and the heat-uniforming component has high thermal conductivity and low thermal resistance, which can uniformly distribute the heat transferred from the heat insulation component and the heat-conducting component while avoiding heat loss. It can achieve a small heat difference in a short time, so that the heating plate is heated evenly, thereby reducing the risk of burning.
[0009] Optionally, the heat insulation component further includes a second heat insulation portion corresponding to the second heating zone, wherein the thermal resistance of the second heat insulation portion is less than that of the first heat insulation portion. The second heat insulation portion can appropriately reduce the heat transferred from the second heating zone, further ensuring that the heating plate is heated evenly.
[0010] Optionally, the plurality of heat exchange channels and the plurality of spacers are located at the outer edge of the heat insulation member and distributed around the center of the heating plate, corresponding to the first heating zone. In this way, the plurality of heat exchange channels and spacers can achieve uniform heat transfer to all parts of the first heating zone, avoiding localized overheating of the first heating zone.
[0011] Optionally, the spacing portion is configured as a plurality of protruding teeth that are radially protruding and spaced apart along the heat insulation member, with the angle β between the two farthest protruding teeth being 30°≤β≤270°. Within this angle range, it is possible to avoid losing too much heat from the first heating zone and to effectively block the heat from the first heating zone, thus preventing localized overheating of the heating plate.
[0012] Optionally, the angle α between two adjacent protrusions is 5° ≤ α ≤ 60°. This angle α can provide a suitable heat dissipation gap for the protrusions.
[0013] Optionally, the width of each of the protrusions in the circumferential direction of the heat insulation element is D, where 1mm ≤ D ≤ 3mm. This dimension D can prevent the protrusions from breaking and also ensures the heat transfer effect.
[0014] Optionally, the thermal conductivity of the heat-uniforming element is greater than or equal to that of the heat-conducting element. The higher the thermal conductivity of the heat-uniforming element, the better the thermal balance effect and the more evenly the heating plate is heated.
[0015] Optionally, the heat-conducting component, heat-insulating component, and heat-uniforming component have the same shape, matching the shape of the bottom of the heating plate. This ensures a more neat and consistent structure and less heat loss when the three components are stacked.
[0016] 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.
[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, which is rotatably disposed in the food processing chamber to blend the food within the chamber. Thus, the food processor also has a blending function, adaptable to various applications such as making purees and rice pastes. Attached Figure Description
[0019] Figure 1This 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 plate assembly;
[0021] Figure 3 This is an exploded view of the heating plate assembly;
[0022] Figure 4 This is a cross-sectional view of the heating plate assembly;
[0023] Figure 5 This is the front view of the thermal insulation component;
[0024] Figure 6 This is a top view of the heating plate 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 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.
[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 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.
[0033] The heating plate assembly 30 includes a heating plate 31, a heating element 32, a heat-conducting element 33, a heat-insulating element 34, and a heat-uniforming element 35. 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, heating element 32, and heat-uniforming element 35 can be welded together using lead soldering, but are not limited to this method. The heating plate 31 can be made of food-grade stainless steel, the heat-conducting element 33 and the heat-uniforming element 35 can be made of aluminum, and the heat-insulating element 34 can be made of stainless steel, but are not limited to this method.
[0034] 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 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.
[0035] A heat-conducting element 33, a heat-insulating element 34, and a heat-uniforming element 35 are stacked between the heating plate 31 and the heating element 32. The heat-conducting element 33 is in contact with the heating element 32, and the heat-insulating element 34 and the heat-uniforming element 35 are located between the heat-conducting element 33 and the heating plate 31. The thermal conductivity of the heat-insulating element 34 is lower than that of the heat-conducting element 33 and the heat-uniforming element 35. Figure 3 In the embodiment shown, the heat insulation element 34 is located between the heat conduction element 33 and the heat equalization element 35.
[0036] The heat insulation component 34 includes a first heat insulation portion 341 corresponding to the first heat-generating area 321. The first heat insulation portion 341 is provided with a plurality of heat exchange channels 341a and a spacer portion 341b located between adjacent heat exchange channels 341a.
[0037] As described above, the first heat insulation part 341 is provided with multiple heat exchange channels 341a and spacers 341b, which makes the thermal resistance of the first heat insulation part 341 relatively large. During the heat transfer process, the heat of the first heating zone can be slowed down by the first heat insulation part 341. Furthermore, the heat homogenizing element 35 has high thermal conductivity and low thermal resistance, which can homogenize the heat transferred from the heat conducting element 33 and the heat insulation element 34, while also avoiding heat loss. It can achieve a small heat difference in a short time, so that the heating plate 31 is heated evenly, thereby reducing the risk of burning.
[0038] In one embodiment, the heat insulation component 34 further includes a second heat insulation portion 342 corresponding to the second heating zone 322, wherein the thermal resistance of the second heat insulation portion 342 is less than that of the first heat insulation portion 341. That is, by utilizing the second heat insulation portion 342, the heat transferred from the second heating zone 322 can be appropriately reduced, thereby achieving a balance between the heat transferred from the second heating zone 321 and the heat transferred from the first heating zone 321, further ensuring that the heating plate 31 is heated evenly.
[0039] In one embodiment, an opening may not be required in the second heat insulation portion 342, or the opening area may be smaller than the area of the heat exchange channel 341a, thereby making the thermal resistance of the second heat insulation portion 342 less than that of the first heat insulation portion 341. In this embodiment, the second heat insulation portion 342 is provided with a clearance opening 3420 to avoid the first terminal and the second terminal, and the area of the clearance opening 3420 is smaller than the area of the heat exchange channel 341a.
[0040] In one embodiment, such as Figure 3As shown, the plurality of heat exchange channels 341a and the plurality of spacers 341b are located at the outer edge of the heat insulation member 34 and are distributed around the center of the heat insulation member 34, corresponding to the position of the first heating zone 321. In this way, the plurality of heat exchange channels 341a and spacers 341b can achieve uniform heat transfer to all parts of the first heating zone 321, avoiding localized overheating of the first heating zone 321. The heat insulation member 34 can be a circular component, and its outer diameter can be set to be the same as the outer diameter of the bottom of the heating plate 31, but is not limited to this.
[0041] Please refer to Figure 5 , Figure 5 This is the front view of the thermal insulation component 34.
[0042] In one embodiment, the spacing portion 341b is configured as a plurality of protruding and spaced teeth that protrude radially along the heat insulation member 34, with the two farthest protruding teeth spaced apart by an angle β, 30°≤β≤270°. This angle β is set according to the size of the first heating zone 321. Within this angle range, it can both avoid excessive heat loss from the first heating zone 321 and effectively block heat from the first heating zone 321, preventing local overheating of the heating plate 31. In an alternative embodiment, the angle β can be set to 30°, 50°, 80°, 100°, 120°, 150°, 200°, 230°, or 270°, but is not limited to these.
[0043] In one embodiment, the angle α between two adjacent protrusions is 5° ≤ α ≤ 60°. This angle α provides a suitable heat dissipation gap for the protrusions, which is the heat exchange channel 341a. In an alternative embodiment, the angle α can be set to 5°, 10°, 20°, 30°, 40°, 50°, or 60°, but is not limited to these.
[0044] Each of the protruding teeth has a circumferential width D around the center O of the heat-conducting element, where 1 mm ≤ D ≤ 3 mm. This dimension D prevents the protruding teeth from breaking and also ensures effective heat dissipation. In an alternative embodiment, the dimension D can be set to 1 mm, 1.5 mm, 2 mm, 2.5 mm, or 3 mm.
[0045] In one embodiment, the heat-conducting component 33, the heat-insulating component 34, and the heat-uniforming component 35 have the same shape, matching the shape of the bottom of the heating plate 31, that is, matching the shape of the plate body of the heating plate 31. This ensures that the three components have a more neat structure, better consistency, and less heat loss when stacked. The fact that the heat-conducting component 33, the heat-insulating component 34, and the heat-uniforming component 35 have the same shape means that all three are disc-shaped.
[0046] In one embodiment, the thermal conductivity of the heat-uniforming element 35 is greater than or equal to that of the heat-conducting element 33. The higher the thermal conductivity of the heat-uniforming element 35, the better the thermal balance effect and the more evenly the heating of all parts of the heating plate 31. The heat-uniforming element 35 can be made of aluminum or copper, but is not limited to these.
[0047] Please refer to Figure 6 , Figure 6 This is a top view of the heating plate assembly 30.
[0048] 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.
[0049] 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). Between the heating plate (31) and the heating element (32), there are stacked heat-conducting elements (33), heat-insulating elements (34), and heat-uniforming elements (35). The heat-insulating elements (34) and the heat-uniforming elements (35) are located between the heat-conducting elements (33) and the heating plate (31). The thermal conductivity of the heat-insulating elements (34) is less than that of the heat-conducting elements (33) and the heat-uniforming elements (35). The heat-insulating elements (34) include a first heat-insulating portion (341) corresponding to the first heating area (321). The first heat-insulating portion (341) is provided with multiple heat exchange channels (341a) and multiple spacers (341b) located between adjacent heat exchange channels (341a).
2. The heat disc assembly of claim 1, wherein, The heat insulation component (34) further includes a second heat insulation portion (342) corresponding to the second heat-generating area (322), and the thermal resistance of the second heat insulation portion (342) is less than the thermal resistance of the first heat insulation portion (341).
3. The heat disc assembly of claim 1, wherein, The plurality of heat exchange channels (341a) and the plurality of spacers (341b) are located at the outer edge of the heat insulation member (34) and are distributed around the center of the heating plate (31), corresponding to the first heating zone (321).
4. The heat disc assembly of claim 3, wherein, The plurality of spacers (341b) are configured as a plurality of protruding teeth that are radially protruding and spaced apart along the heat insulation member (34), with the distance between the two farthest protruding teeth being 30°≤β≤270°.
5. The heat disc assembly of claim 4, wherein, The angle α between two adjacent protrusions is 5° ≤ α ≤ 60°; and / or The width dimension of each of the protrusions in the circumferential direction of the heat insulation member (34) is D, 1mm≤D≤3mm.
6. The heat disc assembly according to any one of claims 1 to 5, wherein, The thermal conductivity of the heat-uniforming element (35) is greater than or equal to the thermal conductivity of the heat-conducting element (33).
7. The heat disc assembly according to any one of claims 1 to 5, wherein, The heat-conducting component (33), the heat-insulating component (34), and the heat-uniforming component (35) have the same shape, which matches the shape of the bottom of the heating plate (31).
8. The heat disc assembly according to any one of claims 1 to 5, wherein, The contact surface (310) is provided with multiple 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).