Heating disc and food processor

Abstract

The utility model relates to a heating plate and a food processor. The heating disc comprises a disc body, a heating part, a first temperature sensor and a second temperature sensor. The disc body and the cup body jointly define a cup cavity. The heating part is attached to the outer wall of the tray body, the heating part comprises a heating pipe and a heat conduction piece which is in heat conduction with the heating pipe, the heat conduction piece comprises a tray bottom located in the center and a side wall connected to the peripheral edge of the tray bottom, and the tray bottom and / or the side wall are / is in heat conduction with the tray body. The first temperature sensor is arranged at the tray bottom and used for detecting the temperature of the tray bottom, and the second temperature sensor penetrates through the tray body and the tray bottom and used for detecting the temperature in a cup cavity. According to the scheme, the temperature measurement accuracy can be improved.

Description

Technical Field

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

[0002] Existing heating-type food processors typically feature a heating plate at the bottom of the cup body. This plate is equipped with a heating tube, which generates heat to heat the food. A temperature sensor is also typically located at the bottom of the plate to detect the temperature of the food at the bottom of the cup. However, when food accumulates thickly at the bottom of the cup, the sensor can become engulfed by the food, resulting in inaccurate temperature measurements. Summary of the Invention

[0003] The present application provides a heating plate and a food processor.

[0004] A heating plate, comprising:

[0005] The disc body is used to enclose a cup cavity together with the cup body;

[0006] a heating portion attached to the outer wall of the tray, the heating portion comprising a heating pipe and a heat conducting member thermally connected to the heating pipe, the heat conducting member comprising a tray bottom located at the center and side panels connected to the edges of the tray bottom, the tray bottom and / or the side panels being thermally connected to the tray body;

[0007] A first temperature sensor and a second temperature sensor, wherein the first temperature sensor is arranged at the bottom of the plate to detect the temperature of the bottom of the plate, and the second temperature sensor is arranged through the plate body and the bottom of the plate to detect the temperature in the cup cavity.

[0008] The heating plate in the present application includes at least two temperature sensors, the first temperature sensor is used to detect the temperature of the bottom of the plate, and the second temperature sensor is used to detect the temperature inside the cup cavity. With this arrangement, even if the second temperature sensor is wrapped by the food in the cup cavity, the first temperature sensor can still be used to assist in detecting the temperature of the bottom of the plate, thereby improving the accuracy of temperature measurement and reducing the occurrence of the problem of food sticking to the bottom.

[0009] Optionally, the heating tube extends around the side panel and is in thermal communication with the side panel, with a gap between the ends of the heating tube. The first temperature sensor is located within an angle γ around the tray where the heating tube surrounds the tray. The tray heats faster within the angle γ around the heating tube, and the tray temperature within this angle γ is relatively high. Therefore, locating the first temperature sensor at the point where the temperature rises can more easily prevent burnt bottoms.

[0010] Optionally, the first temperature sensor is located at 1 / 2 of the angle of the disk surrounded by the heating tube. The temperature at this location is more stable and has less fluctuation, so that the temperature collected by the first temperature sensor is more accurate.

[0011] Optionally, the second temperature sensor is provided through the plate body and the plate bottom at the interval, so that the space between the two ends of the heating tube can be effectively utilized, and the installation of the second temperature sensor is convenient.

[0012] Optionally, the dish body includes a bottom wall located at the center and side walls connected to the edges of the bottom wall. The bottom wall is configured as a circular bottom wall. When the dish body is cut by a plane containing the central axis of the bottom wall, the intersection of the plane and the inner surface of the side walls is an arc-shaped curve convex away from the central axis, or an oblique line gradually away from the central axis from the bottom wall. In this configuration, the diameter of the top of the side wall is greater than the diameter of the bottom wall, and the dish body has a tapered shape that is larger at the top and smaller at the bottom. The bottom wall area is relatively small, which is beneficial for preventing the bottom from becoming sticky.

[0013] Optionally, the angle formed between the line connecting the lowest point and the highest point of the intersection line and the bottom wall is α, 90°≤α≤160°. If the angle is of appropriate size, the inclination of the side wall toward the outside is appropriate accordingly.

[0014] Optionally, the heating plate is further provided with a stirring blade, comprising a blade shaft and a first blade disposed on the blade shaft. The blade shaft is rotatably mounted at the center of the bottom wall and extends from the lower end of the bottom wall. The first blade is located above the plate body. The distance between the end of the first blade and the bottom wall along the axial direction of the blade shaft is L1. The distance between the uppermost end of the heat conductor and the bottom wall along the axial direction of the blade shaft is L2, with 1 / 4 ≤ L1: L2 ≤ 3 / 4. This proportional size allows for an appropriate gap between the first blade and the bottom wall. The stirring of the first blade can prevent the bottom from becoming sticky, avoid contact with the bottom wall, and ensure high heat transfer efficiency.

[0015] Optionally, 8mm≤L1≤15mm, 6mm≤L2≤20mm. In this configuration, L1 and L2 are relatively small, which allows for an appropriate gap between the first blade and the bottom wall, and an appropriate height of the side wall, ensuring high heat transfer efficiency.

[0016] Optionally, 5mm≤L1≤25mm, 6mm≤L2≤60mm. In this configuration, L1 and L2 are relatively large, which can ensure an appropriate gap between the first blade and the bottom wall, increase the height of the side wall, and increase the heating area.

[0017] Optionally, the distance between the tip of the first blade and the side wall along the blade axis radial direction is P1, and in orthographic projection along the blade axis axial direction, the single-side dimension of the side wall in the blade axis radial direction is P2, and 1 / 10≤P1:P2≤3 / 5. This proportional dimension ensures an appropriate clearance between the first blade and the side wall to avoid contact with the side wall.

[0018] Optionally, 3mm≤P1≤25mm, 5mm≤P2≤30mm. In this configuration, the gap between the first blade and the side wall is smaller, which can increase the turbulence range and reduce the occurrence of food sticking to the side wall.

[0019] Optionally, 3mm≤P1≤25mm, 5mm≤P2≤60mm. In this way, the size of the bottom wall is reduced, the size of the side wall is appropriately increased, and the heating area is increased.

[0020] Optionally, the wall thickness of the heat conducting member is uniformly set, with a wall thickness D, 0.5 mm ≤ D ≤ 5 mm. A relatively small wall thickness D can reduce heat loss accordingly.

[0021] A food processor, comprising:

[0022] base;

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

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

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

[0026] Figure 3 This is an exploded view of the heating plate and stirring blade;

[0027] Figure 4 This is a cross-sectional view of the heating plate and stirring blade in the assembled state;

[0028] Figure 5 It is a top view of the heating plate. DETAILED DESCRIPTION

[0029] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0030] If there are terms related to directional indications or positional relationships in the embodiments of this application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of this application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.

[0031] Please refer to Figure 1 , Figure 1 An exploded view of a food processor 100 is shown according to an exemplary embodiment of the present application.

[0032] The present application provides a food processor 100, which includes a base 10 and a cup assembly 20. The cup assembly 20 is assembled above the base 10. For example, the cup assembly 20 is detachably assembled above the base 10. The cup assembly 20 includes a cup body 21 and a cup cover 22. The cup cover 22 covers the mouth of the cup body 21.

[0033] Please refer to Figure 2 , Figure 2 An exploded view of a cup assembly 20 is shown in accordance with an exemplary embodiment of the present application.

[0034] The cup body 21 includes a cup body 210, a heating plate 211 and a cup base 212. The bottom of the cup body 210 is provided with an opening. The heating plate 211 is assembled at the bottom of the cup body 210 and is sealed with the cup body 210 at the opening. The two together form a cup cavity, which is used to hold food.

[0035] The cup holder 212 supports and is connected to the bottom of the cup body 210, and the heating plate 211 is fixed in the cup holder 212. The cup holder 212 includes a bottom shell 2120 located at the bottom, and an upper coupler 213 is provided on the bottom shell. The upper coupler 213 is used to electrically connect to the lower coupler (not shown in the figure) of the machine base 10. A cup handle 2100 is provided on the side of the cup body 210. The cup handle 2100 includes an inner handle 2100a integrally formed with the cup body 210 and an outer handle 2100b separately provided from the cup body 210. The outer handle 2100b covers the inner handle 2100a. The outer handle 2100b can be made of a material with a low thermal conductivity to prevent burns.

[0036] exist Figure 2In the embodiment shown, the cup assembly 20 also includes a stirring knife 23, which is rotatably disposed on the heating plate 211. The blade shaft of the stirring knife 23 passes through the heating plate 211 and is used to engage with the motor shaft in the machine base 10. The blades of the stirring knife 23 are located in the cup cavity and are used to whip and crush the food.

[0037] Please refer to Figure 3 and Figure 4 , Figure 3 It is an exploded view of the heating plate 211 and the stirring blade 23. Figure 4 It is a cross-sectional view of the heating plate 211 and the stirring blade 23 in an assembled state.

[0038] The heating plate 211 includes a plate body 25 and a heating portion 26. The plate body 25 is sealed and joined to the bottom end of the cup body 210, serving as the bottom of the cup body 210. The plate body 25 and the cup body 210 together form a cup cavity. The heating portion 26 can generate heat. The heating portion 26 is electrically connected to the plate body 25 and can transfer heat to the plate body 25. The heating plate 211 also includes a sealing ring 27 and a thermostat 28. The sealing ring 27 is used to seal the gap between the plate body 25 and the cup body 210 at the open end. The thermostat 28 can control the power on and off of the heating portion 26 according to the temperature threshold.

[0039] The heating portion 26 is attached to the outer wall of the tray 25 and includes a heating tube 260 and a heat conductor 261. The heating tube 260 generates heat when energized, and is thermally conductive to the heat conductor 261. The heating tube 260 can be welded to the lower surface of the heat conductor 261, but is not limited thereto. The heat conductor 261 includes a tray base 2610 located at the center and side panels 2611 connected to the edges of the tray base 2610. The tray base 2610 and side panels 2611 together form a concave cavity. The tray 25 is disposed within the concave cavity and is connected to the heat conductor 261. The connection method includes, but is not limited to, welding. The tray 25 can be welded to the tray base 2610 and / or the side panels 2611 for thermal conductivity.

[0040] The heating plate 211 also includes a first temperature sensor 24 and a second temperature sensor 29. The first temperature sensor 24 is provided on the bottom 2610 of the plate for detecting the temperature of the bottom 2610 of the plate. The second temperature sensor 29 is provided through the plate body 25 and the bottom 2610 for detecting the temperature in the cup cavity.

[0041] According to the above description, the heating plate 211 of the present application includes at least two temperature sensors. The first temperature sensor 24 is used to detect the temperature of the bottom of the plate 2610, and the second temperature sensor 29 is used to detect the temperature inside the cup cavity. Therefore, even if the second temperature sensor 29 is wrapped by the food in the cup cavity, the first temperature sensor 24 can still be used to assist in detecting the temperature of the bottom of the plate 2610 and output a temperature signal, thereby improving the accuracy of temperature measurement and reducing and preventing the occurrence of the bottom burning problem.

[0042] Please combine Figures 3 to 5 , Figure 5 It is a top view of the heating plate 211.

[0043] In one embodiment, the heating tube 260 extends around the side panel 2611 and is in thermal communication with the side panel 2611. A gap of angle β is left between the ends of the heating tube 260. The first temperature sensor 24 is located within the angle γ surrounding the tray 25 by the heating tube 260. In other words, within the 360° range of the tray 25, the tray 25 heats faster within the angle γ surrounded by the heating tube 260, resulting in a relatively higher temperature within this angle γ. Therefore, placing the first temperature sensor 24 at the point where the temperature rises can more effectively prevent burnt bottoms.

[0044] In an alternative embodiment, the first temperature sensor 24 is located at a position halfway along the angle γ formed by the heating tubes surrounding the disk 25. Alternatively, the first temperature sensor 24 can be positioned at the bisector of the angle γ. This position corresponds to the middle of the heating tube 260 and is equidistant from both ends of the heating tube 260. Therefore, the temperature at this location is more stable and exhibits minimal fluctuations, resulting in more accurate temperature measurements by the first temperature sensor 24.

[0045] In one embodiment, the second temperature sensor 29 is disposed through the gap between the tray body 25 and the tray bottom 2610. In other words, the second temperature sensor 29 is disposed between the ends of the heating tube 260, corresponding to the angle β region. This effectively utilizes the space between the ends of the heating tube 260, facilitating the placement of the second temperature sensor 29.

[0046] Please combine Figure 4 and Figure 5 The tray body 25 includes a bottom wall 251 located at the center and side walls 252 connected to the edges of the bottom wall 251. The side walls 252 are tilted relative to the bottom wall 251, giving the tray body 25 a downwardly protruding disc-shaped structure. The tray body 25 and the heat conducting member 261 are shaped to match each other, which can improve the fit when welding the two. In this embodiment, the bottom wall 251 of the tray body 25 is welded to the tray bottom 2610 and thermally connected to it. The side walls 252 of the tray body 25 are also welded to the side circumference 2611 and thermally connected to it.

[0047] The bottom wall 251 is configured as a circular bottom wall. The plane containing the central axis O of the bottom wall 251 intersects the dish body 25. The intersection line A of this plane and the inner surface of the side wall 252 forms an arc-shaped curve convex away from the central axis O, or a slanted line gradually away from the central axis O from the bottom wall 251. This configuration results in a larger diameter at the top of the side wall 252 than at the bottom wall 251, resulting in the dish body 25 having a tapered shape with a larger top and smaller bottom. The bottom wall 251 has a smaller area, which helps prevent the bottom from becoming smeared.

[0048] In one embodiment, Figure 4 As shown, the angle α formed by the line L connecting the lowest and highest points of the intersection line A with the bottom wall is 90°≤α≤160°. This angle is appropriately sized, and accordingly, the inclination of the side wall 252 toward the outside is appropriately sized. Furthermore, 105°≤α≤135°. In a specific embodiment, α can be 90°, 100°, 105°, 110°, 120°, 130°, 135°, 140°, 150°, or 160°, but is not limited thereto.

[0049] In one embodiment, Figure 4 As shown, the heating plate 211 is provided with a stirring blade 23, which includes a blade shaft 230 and a first blade 231 provided on the blade shaft 230. The blade shaft 230 is rotatably mounted at the center of the bottom wall 251 and the plate bottom 2610, and extends from the side of the plate bottom 2610 facing away from the bottom wall 251. The first blade 231 is located above the bottom wall 251. The axis of the blade shaft 230 coincides with the central axis O.

[0050] The distance between the end of the first blade 231 and the bottom wall 251 along the axial direction of the blade shaft is L1, and the distance between the uppermost end of the heat conductor 261 and the bottom wall 251 along the axial direction of the blade shaft is L2, wherein 1 / 4≤L1:L2≤3 / 4. This proportional size can ensure an appropriate gap between the first blade 231 and the bottom wall 251. The stirring of the first blade 231 can prevent the bottom from sticking, avoid contact with the bottom wall 251, and ensure high heat transfer efficiency. Furthermore, 0.3≤L1:L2≤0.6. L1:L2 can be 0.25, 0.3, 0.4, 0.5, 0.6, or 0.75.

[0051] Specifically, in one embodiment, 8mm≤L1≤15mm, and 6mm≤L2≤20mm. For example, L1 can be set to, but is not limited to, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, or 15mm. L2 can be set to, but is not limited to, 6mm, 10mm, 12mm, 14mm, 16mm, 18mm, or 20mm. With this configuration, L1 and L2 are relatively small, ensuring an appropriate gap between the first blade 231 and the bottom wall 251 and an appropriate height of the side wall 252, thereby ensuring high heat transfer efficiency.

[0052] In one embodiment, 5mm≤L1≤25mm, and 6mm≤L2≤60mm. For example, L1 can be set to 5mm, 8mm, 12mm, 14mm, 16mm, 18mm, 20mm, or 25mm, but is not limited thereto. L2 can be set to 6mm, 10mm, 20mm, 30mm, 40mm, 50mm, or 60mm, but is not limited thereto. With this configuration, L1 and L2 are relatively large, which increases the gap between the first blade 231 and the bottom wall 251, increases the height of the side wall 252, and increases the heat generation area.

[0053] In one embodiment, the distance between the tip of the first blade 231 and the disk body 25 along the blade axis radial direction is P1. In the orthographic projection along the blade axis axial direction, the single-side dimension of the sidewall 252 along the blade axis radial direction is P2, and 1 / 10 ≤ P1:P2 ≤ 3 / 5. This proportional dimension ensures an appropriate gap between the first blade 231 and the sidewall 252 of the disk body 25, preventing contact with the sidewall 252. Furthermore, 0.15 ≤ P1:P2 ≤ 0.4. P1:P2 can be 0.1, 0.15, 0.2, 0.3, 0.4, 0.5, or 0.6.

[0054] In one embodiment, 3mm ≤ P1 ≤ 25mm, and 5mm ≤ P2 ≤ 30mm. This arrangement reduces the gap between the first blade 231 and the sidewall 252, thereby increasing the range of turbulence and minimizing the risk of food sticking to the sidewall 252. For example, P1 can be set to, but is not limited to, 3mm, 5mm, 10mm, 15mm, 20mm, or 25mm. P2 can be set to, but is not limited to, 5mm, 10mm, 20mm, or 30mm.

[0055] In one embodiment, 3mm≤P1≤25mm, and 5mm≤P2≤60mm. This arrangement reduces the gap between the first blade 231 and the sidewall 252, allowing the sidewall 252 to be appropriately enlarged on one side, thereby increasing the heating area. For example, P1 can be set to, but is not limited to, 3mm, 5mm, 10mm, 15mm, 20mm, or 25mm. P2 can be set to, but is not limited to, 5mm, 10mm, 20mm, 30mm, 40mm, 50mm, or 60mm.

[0056] In one embodiment, the mixing blade 23 may include multiple blades, such as a second blade, a third blade, etc. The multiple blades can be arranged axially along the blade shaft, or symmetrically arranged in pairs about the axis of the blade shaft. The specific setting can be selected according to the actual application scenario.

[0057] In one embodiment, the wall thickness of the heat conducting member 261 is uniform, with the wall thickness D ranging from 0.5 mm to 5 mm. For example, 0.5 mm, 1 mm, 2 mm, 3 mm, 4 mm, and 5 mm. A relatively small wall thickness D can reduce heat loss. Furthermore, 0.5 mm to 3 mm is sufficient.

[0058] exist Figure 4 In the illustrated embodiment, the tray body 25 is further provided with a bent portion 250 provided on the outer periphery, and the bent portion 250 is used for positioning and cooperating with the cup holder 212 .

[0059] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A heating plate, characterized in that: include: The disc body (25) is used to enclose a cup cavity together with the cup body; A heating portion (26) is attached to the outer wall of the disk body (25), the heating portion (26) comprising a heating pipe (260) and a heat conducting member (261) thermally conductive with the heating pipe (260), the heat conducting member (261) comprising a disk bottom (2610) located at the center and side panels (2611) connected to the edges of the disk bottom (2610), the disk bottom (2610) and / or the side panels (2611) being thermally conductive with the disk body; A first temperature sensor (24) and a second temperature sensor (29), wherein the first temperature sensor (24) is provided on the bottom of the tray (2610) for detecting the temperature of the bottom of the tray (2610), and the second temperature sensor (29) is provided through the tray body (25) and the bottom of the tray (2610) for detecting the temperature in the cup cavity.

2. The heating plate according to claim 1, characterized in that The heating tube (260) extends around the side enclosure (2611) and is thermally connected to the side enclosure (2611), a gap is left between the two ends of the heating tube (260), and the first temperature sensor (24) is arranged within the angle of the disk (25) surrounded by the heating tube (260).

3. The heating plate according to claim 2, characterized in that The first temperature sensor (24) is located at 1 / 2 of the angle of the disk (25) surrounded by the heating tube (260); and / or The second temperature sensor (29) is provided through the disk body (25) and the disk bottom (2610) from the interval.

4. The heating plate according to any one of claims 1 to 3, characterized in that The disk body (25) includes a bottom wall (251) located at the center and side walls (252) connected to the edges of the bottom wall (251). The bottom wall (251) is set as a circular bottom wall. The disk body (25) is cut with a plane where the central axis of the bottom wall (251) is located. The intersection line of the plane and the inner surface of the side wall (252) is an arc curve convex away from the central axis, or an oblique line gradually away from the central axis from the bottom wall (251).

5. The heating plate according to claim 4, characterized in that: The angle formed between the line connecting the lowest point and the highest point of the intersection line and the bottom wall is α, and 90°≤α≤160°.

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

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

8. The heating plate according to claim 6, characterized in that The distance between the end of the first blade (231) and the side wall (252) along the radial direction of the blade axis is P1. In the orthographic projection along the axial direction of the knife axis, the single-side dimension of the side wall (252) in the radial direction of the knife axis is P2, 1 / 10≤P1:P2≤3 / 5.

9. The heating plate according to claim 8, characterized in that 3mm≤P1≤25mm, 5mm≤P2≤30mm; or 3mm≤P1≤25mm, 5mm≤P2≤60mm.

10. The heating plate according to any one of claims 1 to 3, characterized in that: The wall thickness of the heat conducting member (261) is uniformly set, and the wall thickness is D, 0.5mm≤D≤5mm.

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

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