An electric griddle

By designing a bevel gear set and a double locking mechanism, the problems of thermal expansion deformation and wear of the electric griddle were solved, achieving uniform heating of the baking pan and convenient disassembly and assembly.

CN224420825UActive Publication Date: 2026-06-30RUIAN CHENGYU FOOD MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUIAN CHENGYU FOOD MASCH CO LTD
Filing Date
2025-07-16
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The heating element and baking pan of existing electric griddles use a rigid connection structure, which leads to stress concentration and coating wear caused by thermal expansion deformation, making maintenance inconvenient.

Method used

The design incorporates a handle-driven bevel gear set, which, in conjunction with a connecting rod, drives the base plate to rotate. The heating rings at the bottom of the base plate are arranged in a three-layered ring pattern with 60-degree equidistant angles to achieve dynamic thermal compensation. A dual locking mechanism consisting of mechanical locking and magnetic fixing is also employed.

Benefits of technology

It reduces the temperature difference between the center and the edge of the baking pan, avoids stress concentration, and simplifies the disassembly and maintenance process of the baking pan.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an electric griddle, which includes a shell, a temperature equalization component at the bottom of the inner cavity of the shell, and a locking component at the top of the inner cavity of the shell. This electric griddle optimizes the thermal management system and designs a bevel gear set driven by the handle. The bevel gear set, in conjunction with the connecting rod, drives the base plate to rotate. The heating ring at the bottom of the base plate is arranged in a three-layer ring pattern with 60-degree equidistant angles. The base plate rotates and radiates heat to heat the griddle, achieving dynamic thermal compensation and reducing the temperature difference between the center and the edge of the griddle. This avoids stress concentration caused by local thermal expansion due to large temperature differences in the griddle. Secondly, a dual locking mechanism consisting of mechanical locking and magnetic fixing is designed. The mechanical locking mainly uses a wedge-shaped block to lock the griddle in conjunction with a locking block at the bottom of the griddle. The magnetic fixing uses an inner layer and a surface layer to magnetically fix the magnetic block at the bottom of the griddle. This design reduces the disassembly and assembly time compared to traditional fixed griddles, making it easier for users to disassemble and maintain.
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Description

Technical Field

[0001] This utility model relates to the field of food frying and cooking technology, specifically an electric griddle. Background Technology

[0002] An electric griddle is a kitchen cooking tool that uses an electric heating element to heat food. Its core function is to heat food on both sides or one side, and it is mainly used for cooking operations such as baking, grilling, and frying.

[0003] Although existing electric griddles offer many advantages, they still have the following problems: the heating element and the baking pan are rigidly connected, which causes thermal expansion and deformation under thermal cycling conditions, leading to an increase in the stress concentration coefficient at the coating interface. Secondly, the fixed baking pan causes increased annual wear of the Teflon coating due to localized friction, and maintenance is troublesome. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] 1. Technical problems to be solved:

[0006] To address the mechanical stress and wear maintenance issues mentioned above, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide an electric griddle with an optimized thermal management system. It features a handle-driven bevel gear assembly that, in conjunction with a connecting rod, rotates the base plate. The heating rings at the bottom of the base plate are arranged in a three-layered ring pattern with 60-degree equidistant angles. The rotation of the base plate and its radiant heat radiation heat the griddle, achieving dynamic thermal compensation and reducing the temperature difference between the center and edge of the griddle. This avoids stress concentration caused by localized thermal expansion due to large temperature differences. Furthermore, a dual locking mechanism consisting of mechanical locking and magnetic fixing is incorporated. The mechanical locking primarily uses wedge-shaped blocks in conjunction with locking blocks at the bottom of the griddle to lock it in place. The magnetic fixing utilizes an inner and outer layer superimposed to magnetically fix the magnetic blocks at the bottom of the griddle. This design results in shorter assembly and disassembly times compared to traditional fixed griddles, making it easier for users to disassemble and maintain.

[0008] 2. Technical Solution:

[0009] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0010] An electric griddle includes a shell, a temperature equalization component is provided at the bottom of the inner cavity of the shell, the temperature equalization component includes a main gear, a driven gear, a connecting block, a base plate and a heating ring, and a locking component is provided at the top of the inner cavity of the shell, the locking component includes a locking block and a magnetic suction element.

[0011] In a preferred embodiment of the electric griddle of this utility model, a control panel is provided on the side wall of the outer shell, the control panel is electrically connected to the heating ring, a baking tray is placed on the top of the outer shell, and a flip cover is hinged to the top of the outer shell.

[0012] In a preferred embodiment of the electric griddle of this utility model, the temperature equalization component includes a handle, a transmission rod welded to the output end of the handle, a main gear fixedly connected to the side wall of the transmission rod, a driven gear meshing with the outer circumferential wall of the main gear, a connecting rod fixedly connected to the top of the driven gear, a connecting block fixedly connected to the top of the connecting rod, a base plate fixedly connected to the top of the connecting block, and a plurality of heating rings fixedly connected to the bottom of the base plate.

[0013] In a preferred embodiment of the electric griddle of this utility model, the locking component includes a pull block, the side wall of the pull block passes through the outer shell and is connected to a connecting plate, the side wall of the connecting plate is fixedly connected to a plurality of springs, and the side wall of the connecting plate is fixedly connected to a plurality of locking blocks.

[0014] As a preferred embodiment of the electric griddle of this utility model, the bottom of the baking pan is integrally formed with multiple magnetic blocks, the bottom of the baking pan is integrally formed with multiple locking blocks, the side wall of the locking block is provided with a slot, and the bottom of the locking block is provided with a sloping structure.

[0015] In a preferred embodiment of the electric griddle of this utility model, both the main gear and the driven gear are bevel gears, the plurality of heating rings are distributed at 60-degree angles and are divided into three layers: inner, middle and outer, and the outer circumference of the connecting rod is fitted with a heat insulation plate.

[0016] In a preferred embodiment of the electric griddle of this utility model, the magnetic suction component includes a heat insulation layer, an inner layer is bonded to the inner wall of the heat insulation layer, and a surface layer is bonded to the inner wall of the inner layer.

[0017] 3. Beneficial effects:

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This type of electric griddle optimizes the thermal management system and designs a bevel gear set driven by the handle. The bevel gear set, together with the connecting rod, drives the base plate to rotate. The heating ring at the bottom of the base plate is arranged in a three-layer ring with an equal 60-degree angle. The base plate rotates and radiates heat to heat the griddle, achieving dynamic thermal compensation. This reduces the temperature difference between the center and the edge of the griddle and avoids stress concentration caused by local thermal expansion due to large temperature differences in the griddle.

[0020] This type of electric griddle features a dual locking mechanism consisting of mechanical locking and magnetic fixing. The mechanical locking mechanism uses a wedge-shaped block to engage with a locking block at the bottom of the griddle to lock the griddle in place. The magnetic fixing mechanism uses an inner and outer layer to magnetically fix the magnetic block at the bottom of the griddle. This design allows for faster assembly and disassembly compared to traditional fixed griddles, making it easier for users to disassemble and maintain the griddle. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0022] Figure 1 This is a schematic diagram of the overall structure of an electric griddle according to the present invention;

[0023] Figure 2 This is a schematic diagram of the second overall structure of an electric griddle according to the present invention;

[0024] Figure 3 This is a schematic diagram of the temperature equalization component structure of an electric griddle according to the present invention;

[0025] Figure 4 This is a schematic diagram of the locking component structure of an electric griddle according to the present invention;

[0026] Figure 5 This is a schematic diagram of the magnetic suction component of an electric griddle according to the present invention.

[0027] The following are the labeling instructions in the diagram: 100, outer shell; 101, control panel; 110, baking tray; 111, locking block; 120, flip cover; 200, temperature equalization component; 210, handle; 220, transmission rod; 230, main gear; 240, driven gear; 250, connecting rod; 260, connecting block; 270, base plate; 280, heating ring; 300, locking component; 310, pull block; 320, spring; 330, locking block; 340, magnetic clasp; 341, heat insulation layer; 342, inner layer; 343, outer layer. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0030] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0033] This utility model provides an overall structural diagram of an embodiment of an electric griddle, including:

[0034] Please see Figures 1-5 An electric griddle according to this embodiment includes a housing 100. A temperature equalization component 200 is provided at the bottom of the inner cavity of the housing 100. The temperature equalization component 200 includes a main gear 230, a driven gear 240, a connecting block 260, a base plate 270 and a heating ring 280. A locking component 300 is provided at the top of the inner cavity of the housing 100. The locking component 300 includes a locking block 330 and a magnetic suction element 340.

[0035] It is worth noting that, in order to facilitate the use of this type of electric griddle, a control panel 101 is provided on the side wall of the outer shell 100. The control panel 101 is electrically connected to multiple heating rings 280 through electrical connection wires and conductive slip rings, and is used to control the synchronous start and stop of multiple heating rings 280. A baking tray 110 is placed on the top of the outer shell 100, and a flip cover 120 is hinged to the top of the outer shell 100.

[0036] Next, to ensure uniform temperature distribution on the baking tray 110, the temperature distribution assembly 200 includes a handle 210. A transmission rod 220 is welded to the output end of the handle 210. A main gear 230 is welded to the side wall of the transmission rod 220. The outer circumference of the main gear 230 meshes with a driven gear 240. A connecting rod 250 is welded to the top of the driven gear 240. A connecting block 260 is fixedly connected to the top of the connecting rod 250 by bolts. The connecting block 260 is a copper-steel composite gasket used to connect the base plate 270 and perform thermal expansion self-compensation to maintain the flatness of the base plate 270. The top of the connecting block 260 is fixedly connected to the base plate 270. The base plate 270 is a ductile iron base plate. The base plate 270 does not directly contact the baking tray 110 and leaves an air gap. Six heating rings 280 are fixedly connected to the bottom of the base plate 270 by ceramic clips.

[0037] Meanwhile, to facilitate the locking and installation of the baking pan 110, the locking component 300 specifically includes a pull block 310 for controlling the movement of the locking block 330. The side wall of the pull block 310 passes through the housing 100 and is connected to a connecting plate. Multiple springs 320 are fixedly connected to the side wall of the connecting plate, and two locking blocks 330 are fixedly connected to the side wall of the connecting plate.

[0038] Furthermore, to facilitate the installation of the baking tray 110, specifically, the bottom of the baking tray 110 is integrally formed with four magnetic blocks. The magnetic blocks are made of magnetic metal and only cooperate with the magnetic component 340 for magnetic locking. They are not magnetic themselves. The bottom of the baking tray 110 is integrally formed with two locking blocks 111. The side wall of the locking block 111 has a slot, which cooperates with the locking block 330 for locking. The bottom of the locking block 111 has a sloping structure to facilitate the movement of the locking block 330.

[0039] It is worth noting that, in order to achieve uniform temperature of the baking pan 110, the main gear 230 and the driven gear 240 are both bevel gears. The six heating rings 280 are distributed at 60-degree angles and are divided into three layers: inner, middle and outer, to disperse the heat accumulation points. The outer circumference of the connecting rod 250 is fitted with a heat insulation plate to prevent the heating rings 280 from affecting the main gear 230 and the driven gear 240.

[0040] Finally, to facilitate the magnetic fixation of the baking tray 110, specifically, the magnetic component 340 includes a heat insulation layer 341 to prevent heat transfer from affecting the magnetism of the magnetic component 340. An inner layer 342 is bonded to the inner wall of the heat insulation layer 341. The inner layer 342 is a neodymium iron boron magnet used to provide basic magnetic attraction. A surface layer 343 is bonded to the inner wall of the inner layer 342. The surface layer 343 is a ferrite magnetic ring used to maintain the magnetic force in the high-temperature area.

[0041] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0042] Combination Figures 1-5 The electric griddle of this embodiment is used in the following specific way:

[0043] 1: Place the electric griddle in the work area, then align the magnetic block and locking block 111 of the baking tray 110 with the corresponding mounting slots, press down to ensure that the baking tray 110 is installed, then connect the external power supply and control the heating ring 280 to work through the control panel 101 to heat the baking tray 110.

[0044] 2: Rotating handle 210 drives main gear 230 to rotate, which in turn drives base plate 270 to rotate through meshing transmission with connecting rod 250 via gear 240. When base plate 270 rotates, six heating rings 280 rotate with it. After base plate 270 is heated, it radiates heat through air gaps to uniformly heat the bottom of baking pan 110, reducing the temperature difference between the center and edge areas of baking pan 110 and preventing local thermal expansion and stress concentration caused by large temperature differences.

[0045] 3: When disassembling the baking tray 110, the outer pull block 310 drives the locking block 330 to move out of the locking block 111's slot. Because the magnetic component 340 is magnetically fixed, the baking tray 110 can then be lifted upwards and disassembled directly for maintenance and cleaning.

[0046] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electric griddle, characterized in that, The device includes a housing (100), and a temperature equalization component (200) is provided at the bottom of the inner cavity of the housing (100). The temperature equalization component (200) includes a main gear (230), a driven gear (240), a connecting block (260), a base plate (270), and a heating ring (280). A locking component (300) is provided at the top of the inner cavity of the housing (100). The locking component (300) includes a locking block (330) and a magnetic suction element (340).

2. The electric griddle according to claim 1, characterized in that, The outer shell (100) has a control panel (101) on its side wall, the control panel (101) is electrically connected to the heating ring (280), a baking tray (110) is placed on the top of the outer shell (100), and a flip cover (120) is hinged to the top of the outer shell (100).

3. The electric griddle according to claim 1, characterized in that, The temperature equalization component (200) includes a handle (210), a transmission rod (220) is welded to the output end of the handle (210), the main gear (230) is fixedly connected to the side wall of the transmission rod (220), the driven gear (240) is meshed with the outer circumference of the main gear (230), a connecting rod (250) is fixedly connected to the top of the driven gear (240), a connecting block (260) is fixedly connected to the top of the connecting rod (250), the base plate (270) is fixedly connected to the top of the connecting block (260), and a plurality of heating rings (280) are fixedly connected to the bottom of the base plate (270).

4. The electric griddle according to claim 1, characterized in that, The locking assembly (300) includes a pull block (310), the sidewall of which is connected to a connecting plate through the housing (100), a plurality of springs (320) are fixedly connected to one sidewall of the connecting plate, and a plurality of latches (330) are fixedly connected to the other sidewall of the connecting plate.

5. The electric griddle according to claim 1, characterized in that, The bottom of the baking pan (110) is integrally formed with multiple magnetic blocks, and the bottom of the baking pan (110) is integrally formed with multiple locking blocks (111). The side wall of the locking block (111) is provided with a slot, and the bottom of the locking block (111) is provided with a sloping structure.

6. The electric griddle according to claim 3, characterized in that, Both the main gear (230) and the driven gear (240) are bevel gears. The multiple heating rings (280) are distributed at 60-degree intervals and are divided into three layers: inner, middle and outer. The outer circumference of the connecting rod (250) is fitted with a heat insulation plate.

7. The electric griddle according to claim 3, characterized in that, The magnetic attractor (340) includes a heat insulation layer (341), an inner layer (342) is bonded to the inner wall of the heat insulation layer (341), and a surface layer (343) is bonded to the inner wall of the inner layer (342).