Heating disc assembly and food processor

Abstract

The application provides a heating disc assembly and a food processor. The heating disc assembly comprises a heating disc, a heating element, and a composite heat-conducting plate. The heating disc comprises a contact surface for contacting food materials. The heating element is arranged on a side of the heating disc away from the contact surface. The composite heat-conducting plate is arranged between the heating disc and the heating element. The composite heat-conducting plate comprises a first heat-conducting layer and a second heat-conducting layer arranged in layers. The thermal conductivity of the second heat-conducting layer is less than that of the first heat-conducting layer. The heating element comprises a heating body, a first cold needle, and a second cold needle. The heating body comprises a main body section, a first end, and a second end connected to the main body section. The first cold needle is arranged on the first end, and the second cold needle is arranged on the second end. The heating body extends in a ring shape. The first end is located inside the second end. The first end and the second end at least partially overlap in the circumferential direction, and the first end and the second end are arranged in a spaced manner. In this way, the heating disc is evenly heated to reduce the risk of burning.

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] With the continuous improvement of people's living standards, many different types of food processors have appeared on the market. The functions of food processors mainly include, but are not limited to, making soy milk, juicing, rice paste, mincing meat, shaved ice, making coffee, and / or preparing face masks. Existing food processors typically use heating plates to heat ingredients; however, heating plates suffer from uneven heat distribution. Utility Model Content

[0003] This application provides a heating plate assembly and a food processor that provides more even heating.

[0004] This application provides a heating plate assembly, which includes: a heating plate including a contact surface for contacting food; and a heating element disposed on the side of the heating plate away from the contact surface; a composite heat-conducting plate disposed between the heating plate and the heating element, the composite heat-conducting plate including a first heat-conducting layer and a second heat-conducting layer stacked together, the thermal conductivity of the second heat-conducting layer being less than that of the first heat-conducting layer; wherein, the heating element includes a heating body, a first cold needle and a second cold needle, the heating body including a main body segment, a first end and a second end connected to the main body segment, the first cold needle being disposed at the first end, the second cold needle being disposed at the second end, the heating body extending circumferentially along the heating plate, the first end being located inside the second end, the first end and the second end at least partially overlapping circumferentially, and the first end and the second end being spaced apart. Since the first and second ends overlap at least partially along the circumference and are spaced apart, no cold spots are generated, and the heating plate is heated evenly during the operation of the food processor. Furthermore, since the thermal conductivity of the second heat-conducting layer is lower than that of the first heat-conducting layer, the heat generated by the heating element is slowed down by the second heat-conducting layer, allowing the heat to be further homogenized in the second heat-conducting layer, thereby making the heating plate heat more evenly and effectively reducing the risk of burning.

[0005] Furthermore, the first end is connected to the main body segment via a bent section. Thus, by providing the bent section, the first end is located inside the second end, thereby achieving a spaced-out arrangement between the first and second ends.

[0006] Furthermore, the angle between the first end and the bent section is between 90 degrees and 125 degrees, thus preventing the bent section from breaking and making the heating element structure more stable and reliable. The arc length of the first end is not less than 25 mm, thus ensuring high heating power and facilitating more even heat transfer from the heating element to the heating plate. The arc length of the bent section is not less than 15 mm. This also prevents the bent section from breaking, making the heating element structure more stable and reliable.

[0007] Furthermore, the first and second cold needles are perpendicular to the heating plate. This results in a smaller area occupied by the first and second cold needles on one side of the heating plate, allowing the heating element to be set longer, which promotes more uniform heat distribution and increases the heating power of the heating plate.

[0008] Furthermore, the distance between the first end and the second end is not less than 5 millimeters. This meets the safety requirements.

[0009] Furthermore, the heating plate assembly also includes a thermostat, with the heating element arranged around the thermostat. Thus, the temperature of the heating plate assembly is controlled by the thermostat, preventing overheating and improving safety.

[0010] Furthermore, the thermostat is provided with a first clearance portion, and the heating plate assembly includes a temperature sensor disposed at the first clearance portion, the temperature sensor passing through the heating plate; and / or, the thermostat is provided with a second clearance portion, the first end being located within the second clearance portion. This results in a more compact and rational structure.

[0011] Furthermore, the temperature controller includes a wiring plug, a temperature-sensing spring, and a fuse. The wiring plug is used for power connection. The temperature-sensing spring disconnects when a first preset temperature is reached, causing the heating element to stop heating. The fuse melts when a second preset temperature is reached, causing the heating element to stop heating. The first preset temperature is lower than the second preset temperature. Thus, the temperature is controlled by the disconnection of the temperature-sensing spring, and when the temperature-sensing spring fails, the melting of the fuse causes the heating element to stop heating, thereby ensuring safe operation.

[0012] Furthermore, the composite heat-conducting plate includes a third heat-conducting layer, the thermal conductivity of which is greater than that of the second heat-conducting layer. The third heat-conducting layer is fixed to the heating plate, the first heat-conducting layer is fixed to the heating element, and the second heat-conducting layer is disposed between the first heat-conducting layer and the third heat-conducting layer. By providing the third heat-conducting layer, heat can be further homogenized, allowing heat to be transferred to the heating plate more evenly.

[0013] This application provides a food processor comprising a blending cup assembly, including the blending cup and a heating plate assembly as described above. The heating plate assembly is assembled at the bottom of the blending cup, forming a food processing chamber together with the blending cup. This heating plate assembly provides even heat distribution and minimizes the risk of food burning. Attached Figure Description

[0014] Figure 1 This is a front view of a food processor shown in an exemplary embodiment of this application; Figure 2 yes Figure 1 A cross-sectional view of the mixing cup assembly shown; Figure 3 yes Figure 2 A cross-sectional view of the heating plate assembly and stirring blade assembled together; Figure 4 yes Figure 2 Front view of the heating plate assembly and stirring blade shown; Figure 5 yes Figure 2 The front view of the heating element assembly shown; Figure 6 yes Figure 2 The front view of the heating element is shown. Figure 7 yes Figure 2 An exploded 3D view of the heating plate assembly shown. Figure 8 yes Figure 4 The front view of the thermostat shown. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1 and Figure 2 The food processor 100 of this application includes a blending cup assembly 70, which includes a blending cup 60, a heating plate assembly 50, and a lid 69. The heating plate assembly 50 is assembled at the bottom of the blending cup 60, and together with the blending cup 60, they form a food processing chamber 601. The lid 69 is placed on top of the blending cup 60.

[0017] The food processor 100 also includes a mixing blade 59, which is rotatably disposed in the food processing chamber 101 to blend the food within the food processing chamber 601. Specifically, the blade shaft of the mixing blade 59 passes through and is rotatably mounted on the heating plate assembly 50. The axial direction of the blade shaft is aligned with the height direction of the cup body 10. The blades of the mixing blade 59 are connected to the blade shaft and located within the food processing chamber 601 for crushing and blending ingredients. The mixing blade 59 enables the mixing cup assembly 70 to have a blending function, allowing it to make various applications such as soy milk and rice paste.

[0018] It should be noted that the food processor may also include a main unit 80. For example, the main unit 80 may be a base-type main unit, and the blending cup assembly 70 may be detachably assembled to the base-type main unit. Alternatively, the main unit 80 may be a head-type main unit, which is assembled on top of the blending cup assembly 70.

[0019] Please see Figures 2 to 8 The heating plate assembly 50 includes a heating plate 10, a heating element 20, and a composite heat-conducting plate 30. The heating plate 10 includes a contact surface 11 for contacting food. The heating element 20 is disposed on the side of the heating plate 10 opposite to the contact surface 11, and the heating element 20 generates heat when energized. The contact surface 11 is the bottom surface of the food processing cavity 601.

[0020] A composite heat-conducting plate 30 is disposed between the heating plate 10 and the heating element 20. The composite heat-conducting plate 30 includes a first heat-conducting layer 31 and a second heat-conducting layer 32 stacked together. The thermal conductivity of the second heat-conducting layer 32 is less than that of the first heat-conducting layer 31.

[0021] The heating element 20 includes a heating body 21, a first cold needle 22, and a second cold needle 23. The heating body 21 includes a main body segment 210, a first end 211 and a second end 212 connected to the main body segment 210. The first cold needle 22 is disposed at the first end 211, and the second cold needle 23 is disposed at the second end 212. The heating body 21 extends circumferentially along the heating plate 10. The first end 211 is located inside the second end 212. The first end 211 and the second end 212 overlap at least partially in the circumferential direction, and the first end 211 and the second end 212 are spaced apart.

[0022] Since the first end 211 and the second end 212 overlap at least partially in the circumferential direction and are spaced apart, no cold zone is generated. During the operation of the food processor 100, the heating plate 10 is heated evenly. Furthermore, since the thermal conductivity of the second heat-conducting layer 32 is less than that of the first heat-conducting layer 31, the heat generated by the heating element 20 is slowed down by the second heat-conducting layer 32, so that the heat can be further uniformized in the second heat-conducting layer 32, thereby making the heating plate 10 heated more evenly and effectively reducing the risk of burning.

[0023] The heating power calculation formula of the heating element 20 is: P=U²(RXL), where L is the length of the heating element 20. The first end 211 of the heating element 20 extends to the inside of the second end 212, which is equivalent to increasing the length of the heating element 20, thereby increasing the heating power of the heating plate 10.

[0024] The first end 211 is connected to the main body segment 210 via a bent section 213. Thus, by setting the bent section 213, the first end 211 is located inside the second end 212, thereby achieving an interval between the first end 211 and the second end 212.

[0025] Preferably, the angle between the first end 211 and the bent section 213 is between 90 degrees and 125 degrees. This prevents the bent section 213 from breaking, thereby making the structure of the heating element 21 more stable and reliable.

[0026] In some embodiments, the included angle β between the first end 211 and the bent segment 213 can be 90 degrees, 95 degrees, 100 degrees, 105 degrees, 110 degrees, 115 degrees, 120 degrees, 125 degrees, or any value between any two adjacent of the above.

[0027] Preferably, the arc length L2 of the first end 211 is not less than 25 mm. This facilitates a more even transfer of heat generated by the heating element 20 to the heating plate 10.

[0028] In some embodiments, the arc length of the first end 211 can be 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, or any value between any two of the above.

[0029] Preferably, the arc length of the bent section 213 is not less than 15 mm. This prevents the bent section 213 from breaking, thereby making the structure of the heating element 21 more stable and reliable.

[0030] In some embodiments, the arc length L1 of the bent segment 213 can be 15 mm, 18 mm, 21 mm, 24 mm, 27 mm, 30 mm, or any value between any two of the above.

[0031] In the illustrated embodiment, the first cold needle 22 and the second cold needle 23 are perpendicular to the heating plate 10. Thus, the area occupied by the first cold needle 22 and the second cold needle 23 on one side of the heating plate 10 is small, allowing the heating element 21 to be set longer, which is beneficial for more uniform heat distribution and also helps to increase the power of the heating element 21.

[0032] Preferably, the distance D between the first end 211 and the second end 212 is not less than 5 mm. This satisfies the safety requirements.

[0033] The distance D between the first end 211 and the second end 212 can be 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm or any value between any two adjacent ends mentioned above.

[0034] The heating plate assembly 50 also includes a temperature controller 40, with the heating element 20 arranged around the temperature controller 40. Thus, the temperature of the heating plate assembly 50 is controlled by the temperature controller 40, preventing overheating and improving safety. In some embodiments, the temperature controller 40 can be fixed to the composite heat-conducting plate 30 using fasteners or other means, but is not limited thereto.

[0035] The temperature controller 40 is provided with a first clearance portion 41, and the heating plate assembly 50 includes a temperature sensor 49 disposed at the first clearance portion 41, the temperature sensor 49 passing through the heating plate 10. This results in a more compact and rational structure. The temperature sensor 49 is used to extend into the food processing chamber 601 to sense the temperature within the food processing chamber 601.

[0036] The temperature controller 40 is provided with a second clearance portion 42, and the first end 211 is located within the second clearance portion 42. This makes the overall structure of the heating plate assembly 50 more compact and rational. The curvature α of the second clearance portion 42 ranges from 90 degrees to 150 degrees.

[0037] The temperature controller 40 includes a connector 43, a temperature-sensing spring 44, and a fuse 45. The connector 43 is used for power connection. The temperature-sensing spring 44 disconnects when a first preset temperature is reached, causing the heating element 20 to stop heating; or, the fuse 45 melts when a second preset temperature is reached, causing the heating element 20 to stop heating. The first preset temperature is lower than the second preset temperature. When the temperature-sensing spring 44 disconnects at the first preset temperature, the heating element 20 stops heating; when the temperature-sensing spring 44 disconnects below the first preset temperature, the heating element 20 restarts heating. Thus, the temperature is controlled by the disconnection of the temperature-sensing spring 44, and when the temperature-sensing spring 44 fails, the fuse 45 melts to stop the heating element 20, thereby ensuring safe operation.

[0038] Preferably, the first preset temperature can be set between 110 degrees and 200 degrees, and the second preset temperature can be set to not less than 280 degrees.

[0039] The composite heat-conducting plate 30 includes a third heat-conducting layer 33, the thermal conductivity of which is greater than that of the second heat-conducting layer 32. The third heat-conducting layer 33 is fixed to the heating plate 10, the first heat-conducting layer 31 is fixed to the heating element 20, and the second heat-conducting layer 32 is disposed between the first heat-conducting layer 31 and the third heat-conducting layer 33. By providing the third heat-conducting layer 33, the heat from the second heat-conducting layer 32 can be efficiently transferred to the heating plate 10, and the heat can also be further homogenized.

[0040] The first thermally conductive layer 31 and the third thermally conductive layer 33 are made of materials with high thermal conductivity, such as aluminum, but not limited to these. The second thermally conductive layer 32 is made of materials with low thermal conductivity, such as stainless steel or graphite, but not limited to these.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A heating plate assembly, characterized in that, include: Heating plate (10) includes a contact surface (11) for contacting food. A heating element (20) is disposed on the side of the heating plate (10) opposite to the contact surface (11); and A composite heat-conducting plate (30) is disposed between the heating plate (10) and the heating element (20). The composite heat-conducting plate (30) includes a first heat-conducting layer (31) and a second heat-conducting layer (32) stacked together. The thermal conductivity of the second heat-conducting layer (32) is less than that of the first heat-conducting layer (31). The heating element (20) includes a heating body (21), a first cold needle (22), and a second cold needle (23). The heating body (21) includes a main body segment (210), a first end (211) and a second end (212) connected to the main body segment (210). The first cold needle (22) is disposed at the first end (211), and the second cold needle (23) is disposed at the second end (212). The heating body (21) extends circumferentially along the heating plate (10). The first end (211) is located inside the second end (212). The first end (211) and the second end (212) overlap at least partially in the circumferential direction, and the first end (211) and the second end (212) are spaced apart.

2. The heating plate assembly according to claim 1, characterized in that, The first end (211) is connected to the main body segment (210) via a bent section (213).

3. The heating plate assembly according to claim 2, characterized in that, The angle between the first end (211) and the bent section (213) is between 90 degrees and 125 degrees; and / or, the arc length of the first end (211) is not less than 25 mm; and / or, the arc length of the bent section (213) is not less than 15 mm.

4. The heating plate assembly according to claim 1, characterized in that, The first cold needle (22) and the second cold needle (23) are perpendicular to the heating plate (10).

5. The heating plate assembly according to claim 1, characterized in that, The distance between the first end (211) and the second end (212) is not less than 5 mm.

6. The heating plate assembly according to claim 1, characterized in that, The heating plate assembly also includes a temperature controller (40), and the heating element (20) is arranged around the temperature controller (40).

7. The heating plate assembly according to claim 6, characterized in that, The temperature controller (40) is provided with a first clearance portion (41), and the heating plate assembly includes a temperature sensor (49) disposed at the first clearance portion (41), the temperature sensor (49) passing through the heating plate (10); and / or, The temperature controller (40) is provided with a second air-proof part (42), and the first end (211) is located inside the second air-proof part (42).

8. The heating plate assembly according to claim 6, characterized in that, The temperature controller (40) includes a wiring plug (43), a temperature sensing spring (44), and a fuse (45), wherein the wiring plug (43) is used for power connection; The temperature-sensing spring (44) disconnects when it reaches the first preset temperature, causing the heating element (20) to stop heating; or, the fuse (45) melts when it reaches the second preset temperature, causing the heating element (20) to stop heating, wherein the first preset temperature is lower than the second preset temperature.

9. The heating plate assembly according to any one of claims 1 to 8, characterized in that, The composite heat-conducting plate (30) includes a third heat-conducting layer (33), the thermal conductivity of the third heat-conducting layer (33) is greater than that of the second heat-conducting layer (32), the third heat-conducting layer (33) is fixed to the heating plate (10), the first heat-conducting layer (31) is fixed to the heating element (20), and the second heat-conducting layer (32) is disposed between the first heat-conducting layer (31) and the third heat-conducting layer (33).

10. A food processor, characterized in that, It includes a mixing cup assembly (70), comprising a mixing cup (60) and a heating plate assembly (50) as described in any one of claims 1 to 9, wherein the heating plate assembly (50) is assembled at the bottom of the mixing cup (60) and together with the mixing cup (60) forms a food processing chamber (601).

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