CN118102521A

CN118102521A - Electromagnetic heating assembly and electromagnetic cooking utensil

Info

Publication number: CN118102521A
Application number: CN202211497451.1A
Authority: CN
Inventors: 易亮; 张翼飞; 吴金华; 彭文斌; 刘博文
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2024-05-28

Abstract

The invention discloses an electromagnetic heating assembly and an electromagnetic cooking appliance. The electromagnetic heating assembly is used for an electromagnetic cooking appliance and comprises a panel, a plurality of winding structures and a plurality of coil windings, wherein the panel is provided with a first side surface and a second side surface which are opposite, and is a heat-resistant plastic panel, so that the first side surface of the panel can be used for placing a cooker for electromagnetic heating; the plurality of winding structures are arranged on the second side surface of the panel and are integrally arranged with the panel, and the plurality of winding structures are arranged on the second side surface of the panel at intervals so as to form a plurality of independent winding areas on the second side surface of the panel; the coil windings are respectively arranged in the winding areas. The electromagnetic heating assembly and the electromagnetic cooking utensil provided by the invention can realize uniform heating and improve the production efficiency.

Description

Electromagnetic heating assembly and electromagnetic cooking utensil

Technical Field

The invention relates to the technical field of electromagnetic heating, in particular to an electromagnetic heating assembly and an electromagnetic cooking utensil.

Background

In traditional electromagnetic cooking utensil, adopt the coil panel as magnetic field provider, the coil panel generally includes the coil panel support and installs the coil winding on the coil panel support, and the coil panel during operation has the inhomogeneous, the concentrated and burnt problem at the bottom of heating, and the coil panel support alone production, through coil panel support mounting in electromagnetic cooking utensil's base cover on the base and establish the panel, accomplish electromagnetic cooking utensil's assembly, it is loaded down with trivial details to consume the cost and install the process, and production efficiency is not ideal.

Disclosure of Invention

The invention mainly aims to provide an electromagnetic heating assembly and an electromagnetic cooking utensil, and aims to solve the problems of poor heating uniformity and non-ideal production efficiency of the electromagnetic cooking utensil in the work of the traditional coil panel.

In order to achieve the above object, the present invention provides an electromagnetic heating assembly for an electromagnetic cooking device, the electromagnetic heating assembly includes a panel, a plurality of winding structures and a plurality of coil windings, the panel has a first side and a second side opposite to each other, the panel is a heat-resistant plastic panel, so that the first side of the panel can be used for placing a pot for electromagnetic heating; the plurality of winding structures are arranged on the second side surface of the panel and are integrally arranged with the panel, and the plurality of winding structures are arranged on the second side surface of the panel at intervals so as to form a plurality of independent winding areas on the second side surface of the panel; the coil windings are respectively arranged in the winding areas.

Optionally, the winding structure includes a winding bracket, the winding bracket includes:

One end of the connecting part is integrally connected with the second side surface of the panel; and

And one end of the wire pressing part is integrally connected with the connecting part, and the other end of the wire pressing part extends towards the periphery of the panel so as to define a winding gap between the wire pressing part and the second side surface of the panel.

Optionally, the connecting portion is columnar.

Optionally, the wire pressing part is provided with a plurality of, and a plurality of wire pressing parts are distributed along the circumference of the connecting part.

Optionally, the width of the pressing line portion gradually increases from one end close to the connecting portion to one end far away from the connecting portion.

Optionally, the electromagnetic heating assembly includes a magnet, and the magnet is disposed on a side of the wire pressing portion facing away from the panel.

Optionally, the electromagnetic heating assembly includes a plurality of magnetic stripes, and a plurality of the magnetic stripes are located respectively a plurality of the line ball portion one side that deviates from the panel.

Optionally, the magnetic stripe is adhered and arranged on one side of the line pressing part, which is away from the panel.

Optionally, the material of the panel includes BMC (Bulk molding compounds) material or PPS (Polyphenylene sulfide) material.

The invention also provides an electromagnetic cooking appliance comprising an electromagnetic heating assembly as described above.

According to the technical scheme, the plurality of winding structures are arranged at intervals to form a plurality of independent winding areas, the plurality of coil windings are respectively arranged in the plurality of winding areas, so that the plurality of coil windings form a plurality of spatially independent magnetic fields, a plurality of independent heating units are formed, compared with a mode that a traditional coil panel only has one coil, the whole heating area of the coil panel is divided into a plurality of small heating areas, heating non-uniformity of the traditional coil panel and an electromagnetic cooking utensil can be effectively reduced, the problems of heating concentration and pasting bottom in the cooking process are solved, the panel is a heat-resistant plastic panel, the first side of the panel can be used for placing the cookware for electromagnetic heating, the plurality of winding structures and the panel are integrally arranged, the panel integrates the functions of a plurality of traditional coil panel brackets, the coil panel is manufactured and molded at one time, the assembly procedures of the coil panel brackets are omitted, the assembly procedures of the parts are reduced, and the production efficiency is improved while uniform heating is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an exploded perspective view of an embodiment of an electromagnetic cooking appliance provided by the present invention;

fig. 2 is a perspective view of an electromagnetic heating assembly of the electromagnetic cooking appliance of fig. 1;

FIG. 3 is an exploded perspective view of the electromagnetic heating assembly of FIG. 2;

FIG. 4 is a schematic cross-sectional view of the electromagnetic heating assembly of FIG. 2;

fig. 5 is a schematic cross-sectional view of the electromagnetic heating assembly of fig. 2 without coil windings.

Reference numerals illustrate:

Reference numerals	Name of the name	Reference numerals	Name of the name
				1000	Electromagnetic cooking utensil	212	Wire pressing part
100	Electromagnetic heating assembly	3	Coil winding
				1	Panel board	4	Winding gap
11	First side surface	5	Magnet body
				12	Second side surface	200	Blower fan
13	Winding area	300	Display panel
				2	Winding structure	400	Fan cover plate
21	Winding bracket	500	Circuit board
				211	Connecting part	600	Base seat

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

In view of the above, the invention provides an electromagnetic heating assembly and an electromagnetic cooking appliance, which aim to solve the problems of poor heating uniformity and non-ideal production efficiency of the electromagnetic cooking appliance in the prior coil panel work. Fig. 1 is an embodiment of an electromagnetic cooking device provided by the present invention. Fig. 2 to 5 are embodiments of an electromagnetic heating assembly provided by the present invention.

The invention provides an electromagnetic heating assembly which is used for an electromagnetic cooking appliance, wherein the electromagnetic cooking appliance can be an electromagnetic oven, an electric cooker or an electric pressure cooker; in this embodiment, the electromagnetic cooking device is an induction cooker.

In an embodiment of the present invention, referring to fig. 1 to 5, the electromagnetic heating assembly 100 is used on an electromagnetic cooking device 1000, the electromagnetic heating assembly 100 includes a panel 1, a plurality of winding structures 2 and a plurality of coil windings 3, the panel 1 has a first side 11 and a second side 12 opposite to each other, the panel 1 is a heat-resistant plastic panel, so that the first side 11 of the panel 1 can be used for placing a pot for electromagnetic heating; the plurality of winding structures 2 are arranged on the second side 12 of the panel 1 and are integrally arranged with the panel 1, and the plurality of winding structures 2 are arranged on the second side 12 of the panel 1 at intervals so as to form a plurality of independent winding areas 13 on the second side 12 of the panel 1; the plurality of coil windings 3 are provided in the plurality of winding regions 13, respectively.

According to the technical scheme, the plurality of winding structures 2 are arranged at intervals to form the plurality of independent winding areas 13, the plurality of coil windings 3 are respectively arranged in the plurality of winding areas 13, so that the plurality of coil windings 3 form a plurality of independent magnetic fields in space, and a plurality of independent heating units are formed.

As shown in the drawing, the number of the winding structures 2 is 4, the number of the winding structures is 4, the winding structures are uniformly distributed to form 4 independent winding areas 13, correspondingly, the number of the coil windings 3 is also 4, and after the winding is completed, 4 independent heating units which are uniformly distributed are formed, so that the heating uniformity is ensured. Of course, the number of the winding structures 2 may be 5, 6, 7 or more, and more winding structures 4 may be used to form more heating units, and the heating units are uniformly distributed, so that the heating uniformity can be better ensured, and the heating uniformity is selected according to actual needs, which is not limited by the present invention.

The specific structure of the winding structure 2 is not limited in the present invention, for example, the winding structure 2 may be configured as a simple column structure, the coil winding 3 is sleeved on the column structure, the column structure is configured in plurality, the column structures are distributed on the second side 12 of the panel 1, and the coil winding 3 is respectively wound on the column structures to form a plurality of independent heating units. The winding structure 2 may be further configured as a plurality of ribs, the plurality of ribs define a plurality of winding grooves that are separately disposed, and the plurality of coil windings 3 are respectively disposed in the plurality of winding grooves to form a plurality of independent heating units.

In this embodiment, the winding structure 2 includes a winding bracket 21, the winding bracket 21 includes a connection portion 211 and a pressing portion 212, one end of the connection portion 211 is integrally connected to the second side 12 of the panel 1, one end of the pressing portion 212 is integrally connected to the connection portion 211, and the other end extends toward the periphery of the panel 1, so as to define a winding gap 4 between the pressing portion 212 and the second side 12 of the panel 1. In this way, the coil winding 3 is wound around the circumference of the connection portion 211, so as to facilitate winding and forming, and the coil winding 3 is limited by the wire pressing portion 212 in the thickness direction thereof, and limited by the connection portion 211 in the extending direction from the inner side of the coil winding 3 to the outer circumference thereof, so that displacement is not easy to occur after the coil winding 3 is formed, and the overall layout of a plurality of coil windings 3 is ensured.

It can be understood that, during design and production, the winding number of the coil windings 3 can be controlled by controlling the interval between the wire pressing part 212 and the panel 1, and finally, the output power of the electromagnetic cooking appliance 1000 can be controlled; the coverage of the coil windings 3 can be controlled by controlling the extension length of the other end of the wire pressing part 212, so that the coil windings 3 are not interfered with each other and are independent in space, and the independence of a plurality of heating units correspondingly formed by the coil windings 3 is ensured.

In this embodiment, the connection portion 211 is disposed in a columnar shape, and the coil winding 3 is wound along a circumferential side of the connection portion 211 disposed in a columnar shape, so as to facilitate molding. It will be appreciated that, in order to save material, the connection portion 211 may be provided as a hollow cylinder while securing strength.

The specific structure of the wire pressing portion 212 is not limited in the present invention, the wire pressing portion 212 may be a flange that is disposed along the circumferential length of the connecting portion 211, that is, the wire pressing portion 212 is disposed in a ring shape, an inner ring end of the wire pressing portion 212 is integrally connected with the connecting portion 211, and an outer ring end of the wire pressing portion 212 extends toward the periphery of the panel 1, so that the coil winding 3 is prevented from being separated from the wire pressing portion 212 during winding, and a good wire pressing effect is ensured.

In this embodiment, the line ball portion 212 is provided with a plurality ofly, and is a plurality of line ball portion 212 is followed the circumference distribution of connecting portion 211, so, can be when realizing better line ball effect, save material, a plurality of the gap that forms between the line ball portion 212 can be used for the inspection wire winding condition, and is convenient for the drawing of patterns when winding structure 2 with panel 1 integrated into one piece improves production efficiency. It can be appreciated that the plurality of wire pressing portions 212 are distributed relatively uniformly along the circumferential direction of the connecting portion 211, so as to ensure a relatively good wire pressing effect. The extending distances from the outer ring end of the connecting portion 211 to the periphery of the panel 1 of the plurality of wire pressing portions 212 are equivalent, so that after the coil winding 3 is wound, the connecting portion 211 is just located at the center of the winding area 13, the center of the coil winding 3 is not deviated, the positioning is accurate, the plurality of coil windings 3 are formed into a preset layout, and the realization of the technical effect is ensured.

Further, the width of the pressing portion 212 is gradually increased from one end close to the connecting portion 211 to one end far from the connecting portion 211. It can be appreciated that the circumference of the coil winding 3 gradually increases from the inner side of the coil winding 3 to the outer peripheral direction thereof, and correspondingly, the width of the wire pressing portion 212 gradually increases from the end close to the connecting portion 211 to the end far from the connecting portion 211, so that the wire pressing length of the wire pressing portion 212 corresponding to the coil winding 3 gradually increases, and the wire pressing effect is further ensured. For example, when the connection portion 211 is columnar, the wire pressing portion 212 may be provided in a fan shape, a smaller arc of the fan shape is an integral connection end with the connection portion 211, and a larger arc of the fan shape extends toward the periphery of the panel 1, so as to gradually increase the wire pressing length along the radial direction of the fan shape. Of course, the pressing portion 212 may be provided in other shapes, such as a trapezoid, a triangle, etc.

In this embodiment, the electromagnetic heating assembly 100 includes the magnet 5, the magnet 5 is disposed on a side of the wire pressing portion 212 away from the panel 1, and by the arrangement of the magnet 5, magnetic force lines generated by the coil winding 3 can be guided, so that magnetic flux leakage of the coil winding 3 in a direction away from the panel 1 is reduced, more energy is concentrated on a side of the coil winding 3 toward the panel 1, that is, a magnetic field generated by the coil winding 3 acts on a pot on a first side 11 of the panel 1, so that on one hand, heating efficiency of the coil winding 3 on the pot can be improved, and on the other hand, electromagnetic interference generated by the coil winding 3 on a nearby circuit board and other devices on a side away from the panel 1 can be reduced, work stability of the devices is ensured, and product quality is improved.

After the coil winding 3 and the magnet 5 are assembled, the coil winding 3 and the magnet 5 are separated by the wire pressing part 212, and the wire pressing part 212 plays a role in insulating and separating the coil winding 3 and the magnet 5, so that the product quality of the electromagnetic heating assembly 100 is guaranteed.

The specific implementation manner of the magnet 5 in the press line portion 212 is not limited, for example, a clamping groove is formed in a side of the press line portion 212 facing the magnet 5, a buckling portion is correspondingly formed in a corresponding protruding portion on a side of the magnet 5 facing the press line portion 212, and the magnet 5 is mounted through cooperation of the buckling portion and the clamping groove. In this embodiment, silicone glue or other adhesive is coated on opposite sides of the magnet 5 and the pressing line portion 212, so that the magnet 5 is adhered to the pressing line portion 212, and therefore, the installation of the magnet 5 is simple, no special setting or other additional connecting pieces are required for the shapes of the magnet 5 and the pressing line portion 212, the process is simple, and the production efficiency is improved.

The invention does not limit the specific structure of the magnet 5, the magnet 5 can be a magnetic block, and the shape of the magnetic block is adapted to the shape setting of the coil winding 3, so that the corresponding area of the magnet 5 and the coil winding 3 is large, and the magnetic field is greatly concentrated and strengthened.

In this embodiment, the electromagnetic heating assembly 100 includes a plurality of magnetic strips, a plurality of the magnetic strips are respectively disposed on one side of the pressing line portion 212 away from the panel 1, the magnetic strips are relatively conventional and are cheap and easy to obtain, and the magnetic strips can be laid out according to different requirements to jointly form the magnet 5 meeting specific setting requirements. As shown in the drawing, 4 coil windings 3 are provided, each coil winding is provided with 6 magnetic strips, and the 6 magnetic strips are respectively provided with 6 wire pressing portions 212 and are uniformly distributed at intervals along the circumferential direction of the connecting portion 211. Of course, the number of the magnetic strips may be 4, 5, 7,8 or more, and the number of the pressing portions 212 may be 4, 5, 7,8 or more, and the invention is not limited thereto. The magnetic strips are respectively arranged on one sides of the pressing line parts 212, which are away from the panel 1, so that the magnetic strips and the corresponding coil windings 3 can be combined to form independent coil windings 3 and magnets 5, and the independence of the coil windings 3 is further ensured. In this embodiment, the shape of the magnetic stripe is similar to the shape of the corresponding wire pressing portion 212, and the size of the magnetic stripe is slightly smaller than the size of the wire pressing portion 212, when the magnetic stripe is mounted on the wire pressing portion 212, in the extending direction of the magnetic stripe and in the width direction of the wire pressing portion 212, the magnetic stripe does not exceed the wire pressing portion 212, so that the magnetic stripe is conveniently arranged, the wire pressing portion 212 supports the magnetic stripe sufficiently, and the separation effect of the wire pressing portion 212 on the magnetic stripe and the coil winding 3 can be ensured.

The specific implementation manner of the magnetic stripe on the pressing line portion 212 is not limited, for example, a clamping groove is formed on one side of the pressing line portion 212 facing the magnetic stripe, a buckling portion is correspondingly protruded on one side of the magnetic stripe facing the pressing line portion 212, and the magnetic stripe is installed through cooperation of the buckling portion and the clamping groove. In this embodiment, silicone adhesive or other adhesive is coated on opposite sides of the magnetic stripe and the pressing line portion 212, so that the magnetic stripe is adhered to the pressing line portion 212, and the installation of the magnetic stripe is simple, no special setting or other connecting pieces are required to be added to the shapes of the magnetic stripe and the pressing line portion 212, the process is simple, the production efficiency is improved, and it can be understood that each magnetic stripe is adhered to the corresponding pressing line portion 212, so that better technical effect can be achieved.

The traditional electromagnetic heating cooking utensil is covered with a ceramic material panel, the ceramic material panel belongs to high energy consumption and high pollution materials, the production process is long, the plasticity is low, a large amount of energy sources are required to be consumed in production, the environment is greatly affected, and the ceramic material panel is easy to crack due to improper operation and collision in the production assembly process, has a certain potential safety hazard, requires a complicated assembly process and affects the production efficiency.

It should be noted that, in this embodiment, the panel 1 is a heat-resistant plastic panel, so that the first side 11 of the panel 1 may be used for placing a pot to perform electromagnetic heating, that is, the heat distortion temperature of the plastic panel is relatively high, for example, greater than 300 ℃, so that the panel 1 may bear high temperature, and the panel 1 may not deform or denature when the coil winding 2 performs electromagnetic heating on the pot, so that it is ensured that the panel 1 is resistant to high temperature generated by electromagnetic heating, and meanwhile, the panel 1 and a plurality of winding structures 2 are conveniently injection molded integrally.

Further, the material of the panel 1 includes BMC (Bulk molding compounds) material or PPS (Polyphenylene sulfide) material, in an embodiment, the panel 1 is made of BMC (Bulk molding compounds) material, BMC material, i.e. bulk molding compound, commonly called as unsaturated polyester bulk molding compound in China, and the main raw materials of the material bulk prepreg are fully mixed by GF (chopped glass fiber), UP (unsaturated resin), MD (filler) and various additives, so that the material bulk prepreg has excellent electrical performance, mechanical performance, heat resistance, chemical corrosion resistance, and is suitable for various molding processes, and can meet the requirements of various products on performance. It can be appreciated that the BMC material may implement performance parameters in different aspects according to different material ratios, and in this embodiment, the BMC material is preferably adapted to the material ratio of the electromagnetic heating cooking appliance so as to implement electromagnetic heating resistance. In another embodiment, PPS (Polyphenylene sulfide) materials can be selected for the panel 1, PPS plastic is polyphenylene sulfide, which is a novel high-performance thermoplastic resin, and has the advantages of high mechanical strength, high temperature resistance, chemical resistance, flame resistance, good thermal stability, good electrical properties, and the like, and the high temperature resistance can also be adapted to the requirements of the electromagnetic heating assembly 100 in the application.

The present invention further provides an electromagnetic cooking device 1000, where the electromagnetic cooking device 1000 includes the electromagnetic heating assembly 100 as described above, and the specific structure of the electromagnetic heating assembly 100 refers to the foregoing embodiments, and since the electromagnetic cooking device 1000 of the present invention adopts all the technical solutions of all the foregoing embodiments, at least the technical solutions of all the foregoing embodiments have all the beneficial effects, and will not be described in detail herein. Referring to fig. 1, in the embodiment, the electromagnetic cooking device 1000 is an electromagnetic oven, and includes the electromagnetic heating assembly 100, the fan 200, the display panel 300, the fan cover 400, the circuit board 500, and the base 600, wherein the second side 12 of the panel 1 of the electromagnetic heating assembly 100 is covered on the base 600, and the specific settings of the fan 200, the display panel 300, the fan cover 400, the circuit board 500, and the base 600 are not limited, and are adjusted according to actual requirements.

The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather utilizing equivalent structural changes made in the present invention description and drawings or directly/indirectly applied to other related technical fields are included in the scope of the present invention.

Claims

1. An electromagnetic heating assembly for use in an electromagnetic cooking appliance, comprising:

a panel having opposed first and second sides, the panel being a heat resistant plastic panel such that the first side of the panel is capable of being electromagnetically heated for placement of a pan;

The plurality of winding structures are arranged on the second side surface of the panel and are integrally arranged with the panel, and the plurality of winding structures are arranged on the second side surface of the panel at intervals so as to form a plurality of independent winding areas on the second side surface of the panel; and

The coil windings are respectively arranged in the winding areas.

2. The electromagnetic heating assembly of claim 1, wherein the coil structure comprises a coil support, the coil support comprising:

3. The electromagnetic heating assembly of claim 2, wherein the connection is cylindrically configured.

4. The electromagnetic heating assembly as set forth in claim 2, wherein a plurality of said pressing portions are provided, and a plurality of said pressing portions are distributed along a circumferential direction of said connecting portion.

5. The electromagnetic heating assembly as set forth in claim 2, wherein the width of the pressing line portion is gradually increased from an end close to the connecting portion to an end far from the connecting portion.

6. The electromagnetic heating assembly of claim 2, wherein the electromagnetic heating assembly includes a magnet disposed on a side of the wire pressing portion facing away from the panel.

7. The electromagnetic heating assembly of claim 4, wherein the electromagnetic heating assembly comprises a plurality of magnetic strips, and the magnetic strips are respectively arranged on one sides of the pressing line parts, which are away from the panel.

8. The electromagnetic heating assembly of claim 7, wherein the magnetic stripe is adhesively disposed on a side of the wire pressing portion facing away from the panel.

9. The electromagnetic heating assembly of claim 1, wherein the material of the panel comprises BMC (Bulk molding compounds) or PPS (Polyphenylene sulfide) material.

10. An electromagnetic cooking appliance comprising an electromagnetic heating assembly as claimed in any one of claims 1 to 9.