Electric pressure cooker

Abstract

An electric pressure cooker, comprising: a pot body, including an outer pot, a heat preservation cover and an inner pot which are arranged in sequence from outside to inside, and pot teeth are arranged on the heat preservation cover; a pot lid, which forms a sealed cooking cavity with the inner pot, and lid teeth which are matched with the pot teeth are arranged on the pot lid so that the pot lid can be locked on the heat preservation cover; an electromagnetic heating device, which is located between the bottom of the heat preservation cover and the bottom of the inner pot, and there is a distance between the electromagnetic heating device and the inner pot to heat the inner pot; a support member, which is arranged on the heat preservation cover, and part of the support member passes through upward from the electromagnetic heating device to support the inner pot, and coils are arranged on both the inner side and the outer side of the support member. Applying the technical solution of the present invention can effectively solve the problem of poor support effect of the inner pot of the electric pressure cooker in the prior art.

Description

Technical Field

[0001] The present invention relates to an electric pressure cooker, and more particularly to an improvement of the pot body of an electric pressure cooker. Background Art

[0002] At present, the electric pressure cookers on the market include a pot body and a pot cover covering the pot body. The pot body includes an outer shell, a heat preservation cover and an inner pot which are arranged in sequence from outside to inside. The pot cover is provided with a cover tooth, and the heat preservation cover is provided with a pot tooth which is matched with the cover tooth. The side wall of the inner pot is supported by the bottom of the heat preservation cover. Although the above structure can prevent the heating device from being affected by the upper pressure on the pot body, the above structure makes the support effect of the inner pot poor and the support unstable. Summary of the Invention

[0003] The main object of the present invention is to provide an electric pressure cooker to solve the problem of poor support effect of the inner pot of the electric pressure cooker in the prior art.

[0004] To achieve the above object, the present invention provides an electric pressure cooker, including: a pot body, including an outer pot, a heat preservation cover and an inner pot which are arranged in sequence from outside to inside, and the heat preservation cover is provided with a pot tooth; a pot cover, forming a sealed cooking cavity with the inner pot, and the pot cover is provided with a cover tooth which is matched with the pot tooth so that the pot cover can be locked on the heat preservation cover; an electromagnetic heating device, located between the bottom of the heat preservation cover and the bottom of the inner pot, and there is a distance between the electromagnetic heating device and the inner pot to heat the inner pot; a support member, arranged on the heat preservation cover, and the support portion of the support member passes through the electromagnetic heating device so that the inner pot is supported on the heat preservation cover through the support portion, and coils are arranged on both the inner side and the outer side of the support portion.

[0005] Applying the technical solution of the present invention, the electric pressure cooker includes a support member which is arranged on the heat preservation cover. The support portion of the support member passes through the electromagnetic heating device, and the above structure enables the inner pot to be supported on the heat preservation cover through the support portion. In addition, applying the technical solution of this embodiment, coils are arranged on both the inner side and the outer side of the support portion, that is, the support portion does not have to be arranged outside the entire coil. Therefore, the above structure makes the support point where the inner pot is supported closer to the axis of the inner pot, so that the inner pot can be supported more stably, thus solving the problem of poor support effect of the inner pot of the electric pressure cooker in the prior art. In addition, the above structure enables the inner pot to maintain the original electromagnetic induction area, or even makes the electromagnetic induction area larger, so that the heating efficiency is higher.

[0006] Further, the ratio between the distance from the support portion to the vertical center line of the inner pot and the radius of the inner pot is between 0.3 and 0.8.

[0007] Further, the support member includes a support member body arranged at the bottom of the heat preservation cover and a support cylinder arranged on the support member body and extending upward, the support cylinder forms the support portion, and the support cylinder passes through the electromagnetic heating device and then supports the inner pot.

[0008] Further, there are a plurality of support cylinders, and the plurality of support cylinders are arranged at intervals along the circumferential direction of the inner pot.

[0009] Further, the electric pressure cooker further includes: a decorative member disposed between the bottom of the inner pot and the top of the electromagnetic heating device to shield the electromagnetic heating device, and the decorative member does not generate heat in a magnetic field environment.

[0010] Further, the inner pot and the decorative member are supported by a support member.

[0011] Further, the bottom surface of the inner pot is a curved surface, and the decorative member has a mating surface adapted to the curved surface.

[0012] Further, the decorative member includes a bottom wall and an arc-shaped side wall, the upper surface of the bottom wall and the upper surface of the arc-shaped side wall form a mating surface, and a support platform adapted to the support member is disposed on the lower surface of the bottom wall.

[0013] Further, the decorative member further includes a convex edge disposed at the edge of the arc-shaped side wall and extending towards the inner wall of the heat preservation cover.

[0014] Further, the electromagnetic heating device includes a heating device body and a coil disposed on the heating device body, and the distance L1 between the bottom wall and the coil in the vertical direction is less than the distance L2 between the coil and the bottom of the heat preservation cover.

[0015] Further, the electric pressure cooker further includes: a temperature sensing device, and an avoidance hole for avoiding the temperature sensing device is disposed on the decorative member so that the temperature sensing device can measure the temperature of the inner pot.

[0016] Further, the support member includes a support member body disposed inside the bottom of the heat preservation cover and a guiding cylinder disposed on the support member body and extending upward, and the temperature sensing device is floatably disposed in the guiding cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0018] Figure 1 shows a longitudinal sectional structure schematic diagram of an embodiment of an electric pressure cooker according to the present invention;

[0019] Figure 2 shows Figure 1 an enlarged structure schematic diagram of part A of the electric pressure cooker;

[0020] Figure 3 shows Figure 1 a three-dimensional structure schematic diagram of the heat preservation cover of the electric pressure cooker; and

[0021] Figure 4 shows Figure 1 a three-dimensional structural schematic diagram of the lid of an electric pressure cooker.

[0022] Among them, the above-mentioned drawings include the following reference numerals:

[0023] 1. Cooking cavity; 10. Pot body; 11. Outer pot; 12. Heat preservation cover; 121. Pot tooth; 13. Inner pot; 20. Lid; 21. Lid tooth; 30. Electromagnetic heating device; 31. Heating device body; 32. Coil; 40. Decorative part; 41. Bottom wall; 42. Arc-shaped side wall; 43. Convex edge; 44. Support platform; 45. Avoidance hole; 50. Temperature sensing device; 70. Support member; 71. Support member body; 72. Support cylinder; 73. Guide cylinder. Detailed implementation manners

[0024] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0025] It should be pointed out that the following detailed description is exemplary and is intended to provide further description of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0026] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] As Figures 1 to 4 shown, the electric pressure cooker of this embodiment includes: a pot body 10, a lid 20, an electromagnetic heating device 30, and a support member 70. Among them, the pot body 10 includes an outer pot 11, a heat preservation cover 12, and an inner pot 13 arranged in sequence from outside to inside. The heat preservation cover 12 is provided with a pot tooth 121. A sealed cooking cavity 1 is formed between the lid 20 and the inner pot 13. The lid 20 is provided with a lid tooth 21 that cooperates with the pot tooth 121 so that the lid 20 can be locked on the heat preservation cover 12. The electromagnetic heating device 30 is located between the bottom of the heat preservation cover 12 and the bottom of the inner pot 13, and there is a distance between the electromagnetic heating device 30 and the inner pot 13 to heat the inner pot 13. The support member 70 is arranged on the heat preservation cover 12, and the support part of the support member 70 passes through the electromagnetic heating device 30, so that the inner pot 13 is supported on the heat preservation cover 12 through the support part, and coils 32 are provided on both the inner side and the outer side of the support part.

[0028] Applying the technical solution of this embodiment, the electric pressure cooker includes a support member 70, and the support member 70 is arranged on the heat preservation cover 12. The support portion of the support member 70 passes through the electromagnetic heating device 30, and the above structure enables the inner pot 13 to be supported on the heat preservation cover 12 through the support portion. In addition, applying the technical solution of this embodiment, both the inner side and the outer side of the support portion are provided with coils 32, that is, the support portion does not have to be arranged outside the entire coil 32. Therefore, the above structure makes the support points where the inner pot 13 is supported closer to the axis of the inner pot 13, so that the inner pot 13 can be supported more stably, thus solving the problem of poor support effect of the inner pot of the electric pressure cooker in the prior art. In addition, the above structure enables the inner pot to maintain the original electromagnetic induction area, or even makes the electromagnetic induction area larger, so that the heating efficiency is higher.

[0029] It should be noted that the "inner side of the support portion" mentioned above refers to the side of the support portion close to the central axis of the inner pot 13, and the "outer side of the support portion" refers to the side of the support portion far from the central axis of the inner pot 13.

[0030] As Figure 1 and Figure 2 shown, in this embodiment, the ratio between the distance from the support portion to the vertical center line of the inner pot 13 and the radius of the inner pot 13 is between 0.3 and 0.8. The above structure makes the distance between the support point and the vertical center line of the inner pot 13 appropriate, so that the inner pot 13 can be supported more stably.

[0031] As Figure 1 and Figure 2 shown, in this embodiment, the support member 70 includes a support member body 71 arranged at the bottom of the heat preservation cover 12 and a support cylinder 72 arranged on the support member body 71 and extending upward. The support cylinder 72 forms the support portion, and the support cylinder 72 passes through the electromagnetic heating device 30 and then supports the inner pot 13. The above structure is simple and convenient for processing. In addition, in this embodiment, the electromagnetic heating device 30 is provided with an avoidance hole corresponding to the support cylinder 72, and the support cylinder 72 passes through the avoidance hole and then supports the inner pot 13. Preferably, in this embodiment, a downward installation cylinder is arranged at the avoidance hole, and the support cylinder 72 extends into the installation cylinder. The above structure enables the electromagnetic heating device 30 to be positioned when assembling the electromagnetic heating device 30, avoiding the electromagnetic heating device 30 from moving in the radial direction, thereby improving the installation efficiency.

[0032] It should be noted that in other embodiments not shown in the figure, the support member may include a support member body arranged between the inner pot and the electromagnetic heating device and a support cylinder arranged at the bottom of the support member body and extending downward, and the bottom of the support cylinder is supported on the heat preservation cover.

[0033] It should be noted that in this embodiment, the wall of the installation cylinder is of different lengths. Figure 2 As shown, the wall near the vertical center line of the inner pot 13 is shorter than that away from the inner pot 13. The above structure increases the supporting points of the electromagnetic heating device 30.

[0034] like Figure 1 As shown, in this embodiment, there are multiple support tubes 72, and the multiple support tubes 72 are arranged at intervals along the circumference of the inner pot 13. The above structure can increase the supporting points, so that the inner pot 13 can be supported more stably.

[0035] like Figure 1 and Figure 2 As shown, in this embodiment, the electric pressure cooker further includes a decorative member 40, which is disposed between the bottom of the inner pot 13 and the top of the electromagnetic heating device 30 to shield the electromagnetic heating device 30, and the decorative member 40 does not generate heat in a magnetic field environment. The above structure can cover the electromagnetic heating device 30, and can prevent water overflowing from the inner pot 13 from entering the electromagnetic heating device 30 as much as possible, thereby protecting the service life of the electromagnetic heating device 30.

[0036] like Figure 1 and Figure 2 As shown, in this embodiment, the inner pot 13 and the decorative member 40 are supported by a support member 70 .

[0037] like Figure 1 and Figure 2 As shown, in this embodiment, the bottom surface of the inner pot 13 is a curved surface, and the decorative member 40 has a matching surface adapted to the curved surface. The electromagnetic heating device 30 includes a heating device body 31 and a coil 32 arranged on the heating device body 31, and the shape of the surface of the heating device body 31 close to the inner pot 13 is adapted to the shape of the matching surface. The above structure makes the inner pot 13 heated more evenly. Preferably, in this embodiment, the inner pot 13 is a spherical pot, and the above structure makes the cooking effect better.

[0038] like Figure 1 and Figure 2 As shown, in this embodiment, the decorative member 40 includes a bottom wall 41 and an arc-shaped side wall 42, the upper surface of the bottom wall 41 and the upper surface of the arc-shaped side wall 42 form a mating surface, and the lower surface of the bottom wall 41 is provided with a support platform 44 that cooperates with the support member 70. The above structure enables the support member 70 to provide an upward supporting force for the support platform 44.

[0039] like Figure 1 and Figure 2As shown, in this embodiment, the decorative member 40 further includes a flange 43 disposed at the edge of the arc-shaped side wall 42 and extending toward the inner wall of the heat insulation cover 12. On the one hand, the above structure can further prevent the water overflowing from the inner pot 13 from entering the electromagnetic heating device 30, thereby protecting the service life of the electromagnetic heating device 30. On the other hand, the user will not observe the structurally complex electromagnetic heating device 30 after picking up the inner pot 13, making the electric pressure cooker more beautiful.

[0040] As Figure 1 and Figure 2 shown, in this embodiment, the electromagnetic heating device 30 includes a heating device body 31 and a coil 32 disposed on the heating device body 31. The distance L1 between the bottom wall 41 and the coil 32 in the vertical direction is less than the distance L2 between the coil 32 and the bottom of the heat insulation cover 12, so as to ensure the minimum loss of heat energy, make the electric pressure cooker more energy-efficient and have a higher heating efficiency. Preferably, in this embodiment, the distance of L1 is in the range of 3-12 mm, and the distance of L2 is in the range of 7-30 mm.

[0041] As Figure 1 and Figure 2 shown, in this embodiment, the electric pressure cooker further includes a temperature sensing device 50, and an avoidance hole 45 for avoiding the temperature sensing device 50 is provided on the decorative member 40. The above structure enables the temperature sensing device 50 to directly measure the temperature of the inner pot 13, making the detected data more accurate.

[0042] As Figure 1 shown, in this embodiment, the support member 70 includes a support member body 71 disposed inside the bottom of the heat insulation cover 12 and a guide cylinder 73 disposed on the support member body 71 and extending upward. The temperature sensing device 50 is movably disposed in the guide cylinder 73. When the inner pot 13 is placed on the decorative member 40, the temperature sensing device 50 can move downward under the action of the gravity of the inner pot 13, so that the outer surface of the inner pot 13 can better cooperate with the inner surface of the decorative member and avoid the inner pot 13 from being displaced.

[0043] As Figure 1 shown, in this embodiment, an elastic device is disposed between the temperature sensing device 50 and the heat insulation cover 12. The above structure enables the temperature sensing device 50 to abut against the inner pot through the elastic device, making the detected data more accurate.

[0044] As Figure 1 shown, in this embodiment, a sealing rubber ring is provided on the pot cover 20. When the pot cover 20 is covered on the pot body 10, the sealing rubber ring abuts against the inner pot 13 to ensure the tightness of the cooking cavity.

[0045] As Figure 1As shown, in this embodiment, a support ring is provided between the pot thread 121 and the lid thread 21. The support ring is disposed within the pot thread 121 and can increase the strength of the pot thread 121. The support ring is made of a heat-resistant material with poor thermal conductivity, which can effectively isolate the heat of the heat preservation cover, preventing the outer shell from getting too hot to touch or melting. The heat preservation cover is provided with ribs for positioning the inner pot, and the ribs can increase the strength of the heat preservation cover.

[0046] As Figure 1 shown, in this embodiment, the electric pressure cooker includes a pressure limiting device. The lid 20 has an exhaust passage communicating with the cooking cavity 1, and the pressure limiting device is disposed at the exhaust passage. When the pressure in the cooking cavity 1 is greater than a predetermined value, the pressure limiting device can open the exhaust passage to communicate the cooking cavity 1 with the outside atmosphere.

[0047] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, so that the embodiments of this application described here can be implemented in an order other than those illustrated or described here.

[0048] In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0049] For ease of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" etc. can be used here to describe the spatial position relationship between a device or feature and other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device shown in the figures.

[0050] For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations are made for the spatial relative descriptions used here.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An electric pressure cooker, characterized in that, Comprising: A pot body (10), including an outer pot (11), a heat preservation cover (12), and an inner pot (13) arranged from outside to inside in sequence. A pot tooth (121) is provided on the heat preservation cover (12); A pot lid (20), forming a sealed cooking cavity (1) with the inner pot (13). A lid tooth (21) matching with the pot tooth (121) is provided on the pot lid (20) so that the pot lid (20) can be locked on the heat preservation cover (12); An electromagnetic heating device (30), located between the bottom of the heat preservation cover (12) and the bottom of the inner pot (13). There is a distance between the electromagnetic heating device (30) and the inner pot (13) to heat the inner pot (13). The electromagnetic heating device (30) includes a heating device body (31) and a coil (32) arranged on the heating device body (31); A support member (70), arranged on the heat preservation cover (12). A support portion of the support member (70) passes through the electromagnetic heating device (30) so that the inner pot (13) is supported on the heat preservation cover (12) through the support portion. The coil (32) is provided on both the inner side and the outer side of the support portion.

2. The electric pressure cooker according to claim 1, characterized in that, The ratio between the distance from the support portion to the vertical center line of the inner pot (13) and the radius of the inner pot (13) is between 0.3 and 0.

8.

3. The electric pressure cooker according to claim 1, characterized in that, The support member (70) includes a support member body (71) arranged at the bottom of the heat preservation cover (12) and a support cylinder (72) arranged on the support member body (71) and extending upward. The support cylinder (72) forms the support portion, and the support cylinder (72) supports the inner pot (13) after passing through the electromagnetic heating device (30).

4. The electric pressure cooker according to claim 3, characterized in that, The support cylinders (72) are multiple, and the multiple support cylinders (72) are arranged at intervals along the circumference of the inner pot (13).

5. The electric pressure cooker according to claim 1, characterized in that, The electric pressure cooker further includes: A decorative member (40), arranged between the bottom of the inner pot (13) and the top of the electromagnetic heating device (30) to shield the electromagnetic heating device (30). The decorative member (40) does not generate heat in a magnetic field environment.

6. The electric pressure cooker according to claim 5, characterized in that, The inner pot (13) and the decorative member (40) are supported by the support member (70).

7. The electric pressure cooker according to claim 6, characterized in that, The bottom surface of the inner pot (13) is a curved surface, and the decorative member (40) has a mating surface adapted to the curved surface.

8. The electric pressure cooker according to claim 7, characterized in that, The decorative member (40) includes a bottom wall (41) and an arc-shaped side wall (42). The upper surface of the bottom wall (41) and the upper surface of the arc-shaped side wall (42) form the mating surface. A support platform (44) matching with the support member (70) is arranged on the lower surface of the bottom wall (41).

9. The electric pressure cooker according to claim 8, characterized in that, The decorative member (40) further includes a convex edge (43) arranged at the edge of the arc-shaped side wall (42) and extending towards the inner wall of the heat preservation cover (12).

10. The electric pressure cooker according to claim 8, characterized in that, The distance L1 between the bottom wall (41) and the coil (32) in the vertical direction is less than the distance L2 between the coil (32) and the bottom of the heat preservation cover (12).

11. The electric pressure cooker according to claim 6, characterized in that, The electric pressure cooker further includes: A temperature sensing device (50), and an avoidance hole (45) for avoiding the temperature sensing device (50) is provided on the decorative member (40) so that the temperature sensing device (50) can measure the temperature of the inner pot (13).

12. The electric pressure cooker according to claim 11, characterized in that, The support member (70) includes a support member body (71) provided on the inner side of the bottom of the heat preservation cover (12) and a guide cylinder (73) provided on the support member body (71) and extending upward, and the temperature sensing device (50) is floatingly provided in the guide cylinder (73).

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