CN-121985441-A - Electromagnetic heating assembly and electric cooking appliance

CN121985441ACN 121985441 ACN121985441 ACN 121985441ACN-121985441-A

Abstract

The invention discloses an electromagnetic heating assembly and an electric cooking appliance, and relates to the technical field of electromagnetic heating devices, wherein the electromagnetic heating assembly comprises a mounting bracket which is configured into an arc shape and forms an accommodating groove, and a coil structure which comprises a first coil and a second coil, wherein the first coil is fixed in the accommodating groove and is coaxially arranged with the accommodating groove, the second coil is provided with a plurality of second coils, the second coils are circumferentially arrayed outside the first coil, two adjacent second coils are connected in series or in parallel, the first coil is connected in series or in parallel with one of the second coils, and the first coil and the second coil are formed by coiling aluminum-based graphene wires. The technical scheme provided by the invention expands the heating range, reduces the manufacturing cost and reduces the occupied volume.

Inventors

LIU WEIYE
ZHANG JIAWEI
Bi Baojin
ZHANG AI

Assignees

中山市海耐得电器科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260317

Claims (10)

1. An electromagnetic heating assembly, comprising: a mounting bracket configured in an arc shape and forming a receiving groove, and The coil structure comprises a first coil and a second coil, wherein the first coil is fixed in the accommodating groove and is coaxially arranged with the accommodating groove, a plurality of second coils are arranged, a plurality of second coil circumferential arrays are arranged outside the first coil, two adjacent second coils are connected in series or in parallel, and the first coil is connected in series or in parallel with one of the second coils; the first coil and the second coil are formed by winding aluminum-based graphene wires.
2. The electromagnetic heating assembly of claim 1, wherein the aluminum-based graphene wire comprises a wire core comprising a plurality of aluminum-based graphene wires braided in strands to form the wire core.
3. The electromagnetic heating assembly of claim 2, wherein the aluminum-based graphene wire comprises: an aluminum-based graphene wire, wherein the aluminum-based graphene wire is made of an aluminum-based graphene composite material, and And the insulating layer is coated outside the aluminum-based graphene wire.
4. The electromagnetic heating assembly of claim 3, wherein the weight percent of graphene in the aluminum-based graphene composite material is 5wt% to 10wt%.
5. The electromagnetic heating assembly of claim 3, wherein the aluminum-based graphene wire further comprises a copper layer disposed between the aluminum-based graphene wire and the insulating layer and wrapped outside the aluminum-based graphene wire.
6. The electromagnetic heating assembly of claim 2, wherein the aluminum-based graphene wire further comprises a waterproof layer, the waterproof layer being wrapped outside the wire core.
7. The electromagnetic heating assembly of claim 1, wherein the winding center of the second coil is disposed outside of the first coil and the second coil has a plurality of arcuate segments, each of the arcuate segments being disposed coaxially with the first coil, and/or, The coil structure further comprises two outgoing lines, one of the outgoing lines is connected with one of the second coils, the other outgoing line is connected with the first coil, and the two outgoing lines are all aluminum-based graphene wires.
8. The electromagnetic heating assembly of claim 1, wherein the inner wall of the accommodating groove is provided with a plurality of first assembling grooves which are arranged in concentric rings and first openings which are communicated with the plurality of first assembling grooves, the first assembling grooves and the accommodating groove are coaxially arranged, the aluminum-based graphene wires are sequentially penetrated in the plurality of first assembling grooves to wind and form the first coil, and/or, The inner wall of the accommodating groove is provided with a plurality of second assembly grooves which are configured into concentric rings and second openings which are communicated with the second assembly grooves, the center of the second assembly grooves is far away from the center of the accommodating groove, and the aluminum-based graphene wires sequentially penetrate through the second assembly grooves to form the second coil in a winding mode.
9. The electromagnetic heating assembly of claim 1, further comprising a magnetic strip secured to an outer wall of the mounting bracket facing away from the receiving recess, the magnetic strip having a plurality of magnetic strips spaced circumferentially about the mounting bracket, each of the magnetic strips extending radially of the first coil, and/or, The mounting bracket is also provided with a heat dissipation port which is communicated with the inside and the outside of the accommodating groove.
10. An electric cooking appliance comprising an electromagnetic heating assembly as claimed in any one of claims 1 to 9.

Description

Electromagnetic heating assembly and electric cooking appliance Technical Field The invention relates to the technical field of electromagnetic heating devices, in particular to an electromagnetic heating assembly and an electric cooking appliance. Background The electromagnetic heating technology is widely applied to various electric cooking appliances such as electric chafing dish, electric kettle, electric cooker, etc. by virtue of the advantages of high heating efficiency, accurate temperature control, cleanness, environmental protection, etc. Currently, an electromagnetic heating assembly on the market generally comprises a mounting bracket and a coil, the mounting bracket is mostly in a flat plate shape, the coil is wound on the mounting bracket in a concentric circle mode, and the coil is made of pure copper or pure aluminum. Such electromagnetic heating assemblies tend to suffer from several problems: (1) Only bottom heating is performed, and the heating area is limited; (2) The copper material has higher cost, so that the production cost of the copper coil is higher; (3) In order to ensure sufficient conductivity, the aluminum material needs to have a larger wire diameter, which results in a larger volume occupied by the aluminum coil. Disclosure of Invention The invention mainly aims to provide an electromagnetic heating assembly and an electric cooking appliance, and aims to solve at least one of the technical problems. To achieve the above object, an electromagnetic heating assembly according to the present invention includes: a mounting bracket configured in an arc shape and forming a receiving groove, and The coil structure comprises a first coil and a second coil, wherein the first coil is fixed in the accommodating groove and is coaxially arranged with the accommodating groove, a plurality of second coils are arranged, a plurality of second coil circumferential arrays are arranged outside the first coil, two adjacent second coils are connected in series or in parallel, and the first coil is connected in series or in parallel with one of the second coils; the first coil and the second coil are formed by winding aluminum-based graphene wires. In an embodiment, the aluminum-based graphene wire comprises a wire core, the wire core comprises a plurality of aluminum-based graphene wires, and the plurality of aluminum-based graphene wires are braided into a strand to form the wire core. In one embodiment, the aluminum-based graphene wire includes: an aluminum-based graphene wire, wherein the aluminum-based graphene wire is made of an aluminum-based graphene composite material, and And the insulating layer is coated outside the aluminum-based graphene wire. In an embodiment, the weight percentage of graphene in the aluminum-based graphene composite material is 5-10 wt%. In an embodiment, the aluminum-based graphene wire further comprises a copper layer, wherein the copper layer is arranged between the aluminum-based graphene wire and the insulating layer and is coated outside the aluminum-based graphene wire. In an embodiment, the aluminum-based graphene wire further comprises a waterproof layer, and the waterproof layer is coated on the outer portion of the wire core. In one embodiment, the winding center of the second coil is arranged outside the first coil, and the second coil is provided with a plurality of arc-shaped sections, each arc-shaped section is coaxially arranged with the first coil, and/or, The coil structure further comprises two outgoing lines, one of the outgoing lines is connected with one of the second coils, the other outgoing line is connected with the first coil, and the two outgoing lines are all aluminum-based graphene wires. In one embodiment, the inner wall of the accommodating groove is provided with a plurality of first assembling grooves which are arranged in concentric rings and first openings which are communicated with the plurality of first assembling grooves, the first assembling grooves and the accommodating groove are coaxially arranged, the aluminum-based graphene wires are sequentially arranged in the plurality of first assembling grooves in a penetrating manner so as to wind and form the first coil, and/or, The inner wall of the accommodating groove is provided with a plurality of second assembly grooves which are configured into concentric rings and second openings which are communicated with the second assembly grooves, the center of the second assembly grooves is far away from the center of the accommodating groove, and the aluminum-based graphene wires sequentially penetrate through the second assembly grooves to form the second coil in a winding mode. In one embodiment, the electromagnetic heating assembly further comprises a magnetic strip fixed on the outer wall of the mounting bracket facing away from the accommodating groove, wherein the magnetic strip is provided with a plurality of magnetic strips which are arranged at intervals along the circumfere