A concave disc type electromagnetic oven

By adding a metal rim to the concave induction cooker to form a three-ring temperature zone structure, the problems of heat waste and heat preservation are solved, achieving rapid heating and long-term heat preservation.

CN224316243UActive Publication Date: 2026-06-02广东尚朋堂科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
广东尚朋堂科技有限公司
Filing Date
2025-06-24
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing concave induction cookers suffer from significant heat loss during use and are unable to effectively retain heat, causing the cookware to lose heat rapidly after heating is stopped.

Method used

By adding a metal rim to a concave induction cooker, a three-ring temperature zone structure is formed, from the concave coil to the metal rim and then to the cookware. The metal rim stores energy and absorbs heat, and continues to release heat after heating stops to maintain the heat preservation effect.

Benefits of technology

It enables cookware to heat up quickly and keep warm for a long time, reduces heat loss, and improves the efficiency and appearance of cookware.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224316243U_ABST
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Abstract

This utility model relates to a concave-plate induction cooker, including a cooker body. The cooker body has a non-metallic concave plate and a concave coil connected to the lower side of the concave plate. The top of the cooker body has an opening. At least part of the concave plate protrudes above the opening, and the outer edge of the top of the concave plate has a metal rim that absorbs, stores, and releases heat. The metal rim surrounds the outer periphery of the protruding part. This concave-plate induction cooker adds a metal rim, which, together with the gradient arrangement of the concave coil, naturally forms a three-ring temperature zone technology from the concave coil to the metal rim to the cookware. Through high-power rapid heating, the cookware can achieve waterless stir-frying with freshness locked in, rapid heating, preservation of food nutrients, and reduction of oxidation and yellowing. When in use, about half of the concave surface of the cookware is sunk into the concave plate and surrounded by the metal rim. The metal rim can store energy, thereby maintaining a longer heat preservation effect, preventing the heat from the heating part from dissipating, and surrounding the bottom of the cookware with heat.
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Description

Technical Field

[0001] This utility model relates to the field of induction cookers, specifically a concave induction cooker. Background Technology

[0002] The current concave-plate induction cooker structure is shown in Chinese patent document, application number: 201820641151.9, which discloses an improved induction cooker including a cooker body and a concave plate. The cooker body panel has mounting holes, and the concave plate is placed in the mounting holes. A support plate is provided inward of the mounting holes, and the edge of the concave plate is directly or indirectly supported by the support plate. In this induction cooker, the concave plate is completely embedded in the cooker body along its height. During use, when some of the heat from the concave coil and the concave plate dissipates to the surroundings, the heat dissipation system inside the cooker will dissipate the heat, resulting in heat waste. When heating stops, the only structures in contact with or close to the cookware are the concave plate made of microcrystalline glass and the cooker panel. However, microcrystalline glass does not absorb heat and has a fast heat dissipation efficiency, so it cannot provide a certain heat preservation effect for the cookware. Therefore, the applicant has improved and perfected the structure of the concave-plate induction cooker to solve the above problems and provide consumers with a choice for use. Utility Model Content

[0003] The purpose of this invention is to solve the aforementioned problems and provide a concave induction cooker with a simple and reasonable structure.

[0004] A concave induction cooker includes a cooker body, wherein a non-metallic concave plate and a concave coil connected to the lower side of the concave plate are provided inside the cooker body. The top of the cooker body has an opening, and at least a portion of the concave plate protrudes above the opening. The outer edge of the top of the concave plate is provided with a metal rim that absorbs heat, stores energy, and releases heat, and the metal rim surrounds the outer periphery of the protruding portion.

[0005] The objective of this utility model can also be achieved by the following technical measures:

[0006] As a more specific embodiment, the metal edging has an upper edging and a lower edging, the upper edging rests on the surface of the concave plate, and the lower edging rests against the top surface of the furnace body.

[0007] As a further embodiment, the entire ring of the metal edging has a C-shaped cross-section, including an arc-shaped main body, with the upper and lower edging integrally connected to the upper and lower ends of the arc-shaped main body, respectively.

[0008] As a further solution, a first adhesive layer is provided between the inner side of the upper rim and the plate surface, and a second adhesive layer is provided between the bottom surface of the lower rim and the top surface of the furnace body. Through the bonding of the first adhesive layer and the second adhesive layer, the metal rim is fixed between the concave plate and the furnace body.

[0009] As a further embodiment, the protruding portion of the concave disk is longer than the built-in portion of the concave disk; the height of the protruding portion of the concave disk exceeds two-thirds or more of the total height of the concave disk.

[0010] As a further embodiment, the furnace body includes a bottom shell, a top shell, and a panel. The top shell is fastened to the upper side of the bottom shell, the panel is adhered to the top surface of the bottom shell, and the opening is formed on the panel.

[0011] As a further embodiment, a concave disc support is connected to the faceplate, the concave disc support extends upward along the wall of the opening to the upper side of the opening, the top outer edge of the concave disc abuts against the concave disc support, and the metal edging surrounds the outer periphery of the concave disc support.

[0012] As a further embodiment, the bottom of the concave disc support base extends outward with a connecting plate. The connecting plate is located on the lower side of the face shell and has several evenly distributed through holes. A connecting post is provided on one side of the face shell corresponding to the through holes. The concave disc support base is assembled and connected to the face shell by passing through the through holes and the connecting post from bottom to top through the fastening unit.

[0013] As a further embodiment, the top inner side of the concave disc support is provided with an inclined support surface, and the top outer edge of the concave disc abuts against the inclined support surface; a filling groove is recessed on the inclined support surface, and an adhesive applicator notch communicating with the filling groove is provided on the concave disc support.

[0014] As a further embodiment, the concave disk is made of high-temperature resistant plastic or microcrystalline glass; the metal edging is made of aluminum alloy.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model relates to a concave induction cooker. This concave induction cooker adds a metal rim and, together with the gradient arrangement of the concave coil, naturally forms a three-ring temperature zone technology from the concave coil to the metal rim and then to the cookware. Through high power and rapid heating, the cookware can achieve waterless stir-frying with freshness locked in, and the rapid heating preserves the nutrients of the food and reduces oxidation and yellowing.

[0017] When in use, about half of the concave surface of the pot is sunk into the concave plate and surrounded by a metal rim. The metal rim can store energy and absorb heat. Even after the induction cooker stops heating, the metal rim can still release heat to the pot, thus maintaining a long-term heat preservation effect and preventing the heat from the heating part from dissipating. The heat surrounds the bottom of the pot. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an embodiment of the induction cooker of this utility model.

[0019] Figure 2This is a schematic diagram of the cross-sectional structure of the induction cooker in this utility model.

[0020] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle.

[0021] Figure 4 This is an exploded view of the induction cooker in this utility model.

[0022] Figure 5 This is a schematic diagram of the connection structure between the inner shell and the concave disk support base in this utility model.

[0023] Figure 6 This is a schematic cross-sectional view of the concave disc support base in this utility model. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] See Figures 1 to 6 As shown, a concave induction cooker includes a cooker body 1. The cooker body 1 has a concave plate 2 made of microcrystalline glass and a concave coil 3 connected to the lower side of the concave plate 2. The top of the cooker body 1 has an opening 101. At least a portion of the concave plate 2 protrudes above the opening 101, and the outer edge of the top of the concave plate 2 is provided with a metal rim 4 made of aluminum alloy, which surrounds the outer periphery of the protruding portion.

[0026] In this application, an induction cooker is equipped with a metal rim 4, which, together with the gradient arrangement of the concave coil 3, naturally forms a three-ring temperature zone technology from the concave coil 3 to the metal rim 4 and then to the cookware. Through high-power rapid heating, the cookware can achieve waterless stir-frying with freshness locked in, rapid heating, preservation of food nutrients, and reduction of oxidation and yellowing.

[0027] Moreover, when in use, about half of the concave surface of the pot is embedded in the concave plate 2 and surrounded by the metal rim 4. The metal rim 4 can store energy and absorb heat. After the induction cooker stops heating, the metal rim 4 can still release heat to the pot, thus maintaining a long-term heat preservation effect and preventing the heat from the heating part from dissipating. The heat surrounds the bottom of the pot.

[0028] The entire ring of the metal rim 4 has a C-shaped cross-section, including an arc-shaped main body 41. The upper end and lower end of the arc-shaped main body 41 are respectively provided with an upper rim 42 and a lower rim 43. The upper rim 42 rests on the surface 201 of the concave plate 2, and the lower rim 43 abuts against the top surface of the furnace body 1. The smooth metal rim 4 can enhance the aesthetics of the induction cooker and can also hide the protruding part of the concave plate 2.

[0029] The specific fixing method of the metal edging 4:

[0030] A first adhesive layer 51 is provided between the inner side of the upper rim 42 and the plate surface 201, and a second adhesive layer 52 is provided between the bottom surface of the lower rim 43 and the top surface of the furnace body 1. By bonding the first adhesive layer 51 and the second adhesive layer 52, the metal rim 4 is fixed between the concave plate 2 and the furnace body 1. The assembly method of fixing the metal rim 4 with adhesive is simple and direct.

[0031] The protruding portion H1 of the concave plate 2 is longer than the built-in portion H2 of the concave plate 2; the height of the protruding portion H1 of the concave plate 2 exceeds two-thirds or more of the total height of the concave plate 2; so that the heat dissipated from the concave plate 2 can be absorbed and stored by the metal edging 4, reducing heat waste and improving the heat preservation effect.

[0032] The furnace body 1 includes a bottom shell 10, a front shell 11 and a panel 12. The front shell 11 is fastened to the upper side of the bottom shell 10, the panel 12 is adhered to the top surface of the bottom shell 10, and the opening 101 is formed on the panel 12.

[0033] A concave support base 6 is connected to the shell 11. The concave support base 6 extends upward along the wall of the opening 101 to the upper side of the opening 101. The top outer edge of the concave disk 2 abuts against the concave support base 6. The metal rim 4 surrounds the outer periphery of the concave support base 6. The concave support base 6 is used to support the concave disk 2 protruding from the upper side of the opening.

[0034] The bottom of the concave support base 6 extends outward with a connecting plate 61. The connecting plate 61 is located on the lower side of the face shell 11 and has several evenly distributed through holes 611. A connecting post 111 is provided on one side of the face shell 11 corresponding to the through holes 611. Fastening units such as screws pass through the through holes 611 and the connecting post 111 from bottom to top, so that the concave support base 6 is assembled and connected to the face shell 11. This assembly method is simple and quick, can improve production efficiency, facilitate maintenance, and ensures a firm and stable connection.

[0035] The concave support base 6 has an inclined support surface 62 on its top inner side, and the top outer edge of the concave plate 2 abuts against the inclined support surface 62; the inclined support surface 62 has a recessed glue filling groove 621, and the concave support base 6 has a glue application notch 63 that communicates with the glue filling groove 621.

[0036] The concave plate 2 is mainly fixed to the concave plate support base 6 by glue. During installation, glue can be injected into the glue filling groove 621 first, and then the concave plate 2 can be placed on the inclined support surface 62 and fixed in contact with the glue at the same time; or, the concave plate 2 can be placed on the inclined support surface 62 first, and then glue can be injected into the space between the concave plate 2 and the glue filling groove 621 through the glue injection notch 63.

[0037] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A concave-plate induction cooker, comprising a cooker body (1), wherein a non-metallic concave plate (2) and a concave coil plate (3) connected to the lower side of the concave plate (2) are provided inside the cooker body (1), characterized in that: The furnace body (1) has an opening (101) at the top, and the concave plate (2) has at least a portion protruding above the opening (101). The outer edge of the top of the concave plate (2) is provided with a metal rim (4) that absorbs heat, stores energy, and releases heat. The metal rim (4) surrounds the outer periphery of the protruding portion.

2. A concave induction cooker according to claim 1, characterized in that: The metal edging (4) has an upper edging (42) and a lower edging (43). The upper edging (42) rests on the surface (201) of the concave plate (2), and the lower edging (43) abuts against the top surface of the furnace body (1).

3. A concave induction cooker according to claim 2, characterized in that: The entire ring of the metal edging (4) has a C-shaped cross-section, including an arc-shaped body (41), and the upper edging (42) and lower edging (43) are integrally connected to the upper and lower ends of the arc-shaped body (41), respectively.

4. A concave-plate induction cooker according to claim 2 or 3, characterized in that: A first adhesive layer (51) is provided between the inner side of the upper rim (42) and the plate surface (201), and a second adhesive layer (52) is provided between the bottom surface of the lower rim (43) and the top surface of the furnace body (1). Through the bonding of the first adhesive layer (51) and the second adhesive layer (52), the metal rim (4) is fixed between the concave plate (2) and the furnace body (1).

5. A concave induction cooker according to claim 1, characterized in that: The protruding portion (H1) of the concave disk (2) is longer than the built-in portion (H2) of the concave disk (2); the height of the protruding portion (H1) of the concave disk (2) exceeds two-thirds or more of the total height of the concave disk (2).

6. A concave induction cooker according to claim 1, characterized in that: The furnace body (1) includes a bottom shell (10), a front shell (11) and a panel (12). The front shell (11) is fastened to the upper side of the bottom shell (10), and the panel (12) is adhered to the top surface of the bottom shell (10). The opening (101) is opened on the panel (12).

7. A concave induction cooker according to claim 6, characterized in that: The faceplate (11) is connected to a concave plate support (6). The concave plate support (6) extends upward along the hole wall of the opening (101) to the upper side of the opening (101). The top outer edge of the concave plate (2) abuts against the concave plate support (6). The metal edging (4) surrounds the outer periphery of the concave plate support (6).

8. A concave induction cooker according to claim 7, characterized in that: The bottom of the concave support base (6) extends outward with a connecting plate (61). The connecting plate (61) is located on the lower side of the face shell (11) and has several evenly distributed through holes (611). A connecting post (111) is provided on one side of the face shell (11) corresponding to the through hole (611). The fastening unit passes through the through hole (611) and the connecting post (111) from bottom to top, so that the concave support base (6) is assembled and connected to the face shell (11).

9. A concave induction cooker according to claim 7, characterized in that: The top inner side of the concave plate support base (6) is provided with an inclined support surface (62), and the top outer edge of the concave plate (2) abuts against the inclined support surface (62); the inclined support surface (62) is recessed with a glue filling groove (621), and the concave plate support base (6) is provided with a glue filling notch (63) that connects to the glue filling groove (621).

10. A concave induction cooker according to claim 1, characterized in that: The concave plate (2) is made of high-temperature resistant plastic or microcrystalline glass; the metal edging (4) is made of aluminum alloy.