Coil assembly and induction cookware

Abstract

The present invention discloses a coil assembly and an induction cooker, wherein the coil assembly includes a mounting carrier having two opposing mounting surfaces, a coil winding mounted on one of the mounting surfaces, and a magnet mounted on the other mounting surface and intended for mounting on an induction cooker.

Description

[Technical Field]

[0001] This invention claims priority from a Chinese patent application with application number 202210660523.3, filed on June 10, 2022, the entire contents of which are incorporated herein by reference.

[0002] The present invention relates to the technical field of cooking appliances, and more particularly to a coil assembly and an induction cooking appliance. [Background technology]

[0003] Electromagnetic heating is now widely used in home appliances. In particular, multi-head stoves and induction stoves that use electromagnetic heating are typically limited to one or a few fixed locations, with no heating coils elsewhere on the heating panel. This means localized heating is possible, and the heating location must be adjusted accordingly. Any misalignment can affect the cooking effect. Therefore, multiple heating points are required to heat the entire area. Conventional electromagnetic heating coil disks require a combination of magnets and coil windings, resulting in a complex structure that makes them unsuitable for use on induction stoves that heat the entire area. Summary of the Invention [Problem to be solved by the invention]

[0004] The main object of the present invention is to propose a coil assembly and an electromagnetic cooking appliance, with a primary focus on providing an electromagnetic heating coil disk structure suitable for attachment to an IH stove that heats the entire area. [Means for solving the problem]

[0005] In order to achieve the above object, the coil assembly of the present invention includes a mounting carrier having two opposing mounting surfaces, a coil winding attached to one of the mounting surfaces, and a magnet provided on the other mounting surface for attachment to an induction cookware.

[0006] Furthermore, the electromagnetic cooking appliance of the present invention includes a housing including a mounting base on which a plurality of mounting stations are provided and a panel covering the mounting base, and a plurality of coil assemblies that are attached to the plurality of mounting stations, the coil assembly including a mounting carrier having two opposing mounting surfaces, a coil winding attached to one of the mounting surfaces, and a magnet provided on the other mounting surface for attachment to the electromagnetic cooking appliance, and at each mounting station, the coil winding, the mounting carrier, and the magnet are stacked in order along the direction from the panel to the mounting base.

[0007] In one embodiment, at each of the mounting stations, the magnet is fixedly fitted to the corresponding mounting station.

[0008] In one embodiment, the mounting base is provided with a protrusion that forms the mounting station, and the magnet is provided with a first through-hole that passes through and is fitted into the protrusion.

[0009] In one embodiment, a snap member is further attached to one of the mounting surfaces of the mounting carrier on which the magnet is attached, and a snap fit portion is provided on the mounting base, and the snap member passes through a first through hole of the magnet and snaps into the snap fit portion.

[0010] In one embodiment, the mounting base is provided with a snap-fit ​​groove that forms the corresponding snap-fit ​​portion.

[0011] In one embodiment, the snap-fit ​​groove is provided as an elongated groove, and correspondingly, the snap member is provided in an elongated shape.

[0012] In one embodiment, a first rib forming the protrusion is provided on the periphery of the snap-fit ​​groove on the side of the mounting base closer to the magnet.

[0013] In one embodiment, the mounting carrier has a second through-hole, the snap member is hollow, and the second through-hole and the cavity of the snap member communicate with each other to form an electric wire passage.

[0014] In one embodiment, a second rib is provided around the periphery of the second through hole on one of the mounting surfaces of the mounting carrier to which the coil winding is attached, and the second rib is semi-encircling so as to form an electric wire passage communicating with the second through hole.

[0015] In one embodiment, the mounting base includes a base and a plurality of mounting bars spaced apart within the base, each of the mounting bars having a plurality of the snap-fit ​​grooves.

[0016] In one embodiment, each of the mounting bars is movable along a direction from the base to the panel, and at least one elastic abutment is provided between the mounting bar and the base.

[0017] In one embodiment, at least one sliding portion is provided on the side of each mounting bar closer to the base, and at least one sliding groove is provided in the base corresponding to the sliding portion, and the sliding portion is configured to move within the corresponding sliding groove and guide the movement of the corresponding mounting bar.

[0018] In one embodiment, the mounting base is provided with a groove forming a mounting station, and the magnet is correspondingly fitted into the groove.

[0019] In one embodiment, the mounting base includes a base and a plurality of mounting bars spaced apart within the base, and a plurality of the grooves are recessed into each of the mounting bars on the side closest to the base. [Effects of the Invention]

[0020] In the technical solution of the present invention, the coil assembly is intended for mounting on an induction cooktop, which has multiple mounting stations, each of which can mount one of the coil assemblies, forming a heating unit within the cooktop. To heat a pot placed on a panel, the coil winding is mounted on one mounting surface of the mounting carrier so that it is adjacent to the panel of the induction cooktop when the mounting carrier is mounted on the corresponding mounting station. The magnet is mounted on the other mounting surface of the mounting carrier. When the mounting carrier is mounted on the corresponding mounting station, the magnet is independently mounted on the mounting station, thereby concentrating magnetic flux on the corresponding coil winding and improving the heating efficiency of the pot. In the prior art, mounting a coil winding and a magnet together on an electromagnetic heating coil disk requires a separate fixed carrier between the coil winding and the magnet to separate them. In contrast, in the present invention, the magnet and the mounting carrier are independent of each other, allowing the magnet to be directly mounted on the corresponding mounting station, allowing for a variety of mounting configurations and positions. The magnet is attached in a simple manner, and there is no need to attach the magnet to the attachment carrier, and the assembly structure of the coil assembly is also simple.

[0021] In order to more clearly explain the technical solutions in the embodiments of the present invention or the prior art, the following will briefly describe the drawings necessary for describing the embodiments or the prior art. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on the structures shown in these drawings without any creative efforts. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a schematic exploded perspective view showing an embodiment of an electromagnetic cooking appliance according to the present invention. [Figure 2] 2 is a schematic diagram showing an attachment structure of an embodiment of the coil assembly and attachment bar of FIG. 1. FIG. [Figure 3] 3 is a schematic exploded view of the attachment structure of the coil assembly and attachment bar of FIG. 2. FIG. [Figure 4] FIG. 3 is an exploded schematic view showing the structure of the coil assembly of FIG. 2. [Figure 5] 1. FIG. 4 is a schematic diagram showing a mounting structure of another embodiment of the coil assembly and mounting bar of FIG. [Figure 6] FIG. 6 is an exploded schematic view showing the structure of the coil assembly of FIG. 5. DETAILED DESCRIPTION OF THE INVENTION

[0023] The realization of the objects, functional features and advantages of the present invention will be further explained in combination with the embodiments and with reference to the drawings.

[0024] Hereinafter, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, and not all embodiments, and all other embodiments that can be obtained by those skilled in the art based on the embodiments of the present invention without any creative efforts are all within the protection scope of the present invention.

[0025] It should be noted that, when an embodiment of the present invention has directional instructions (e.g., up, down, left, right, front, back, etc.), the directional instructions are only used to interpret the relative positional relationships, movement conditions, etc. between each part in a certain specific posture (e.g., as shown in the figure), and when the specific posture changes, the directional instructions also change accordingly.

[0026] Furthermore, when the terms "first," "second," etc. appear in the embodiments of the present invention, they are used for explanatory purposes only and should not be construed as indicating or implying the relative importance of the features or as implicitly specifying the number of technical features presented. Accordingly, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. Furthermore, the term "and / or" used throughout the text means that three parallel alternatives are included. For example, "A and / or B" includes alternative A, alternative B, or alternatives where both A and B are satisfied. Furthermore, the technical solutions in each embodiment may be combined with one another, but this is based on the feasibility of those skilled in the art. If a combination of technical solutions is mutually inconsistent or impractical, it should be understood that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0027] Electromagnetic heating is now widely used in home appliances. In particular, multi-head stoves and induction stoves that use electromagnetic heating are typically limited to one or a few fixed locations, with no heating coils elsewhere on the heating panel. This means localized heating is possible, and the heating location must be adjusted accordingly. Any misalignment can affect the cooking effect. Therefore, multiple heating points are required to heat the entire area. Conventional electromagnetic heating coil disks require a combination of magnets and coil windings, resulting in a complex structure that makes them unsuitable for use on induction stoves that heat the entire area.

[0028] In view of this, the present invention provides a coil assembly, and FIGS. 1 to 6 show one embodiment of the present invention.

[0029] 1 to 3, the coil assembly 3 comprises a mounting carrier 302 having two opposing mounting surfaces, a coil winding 301 mounted on one of the mounting surfaces, and a magnet 2 provided on the other mounting surface and intended to be attached to the induction cooker 100.

[0030] In the technical solution of the present invention, the coil assembly 3 is for mounting on an induction cookware 100, which has multiple mounting stations, each of which can mount one coil assembly 3, and each coil assembly 3 forms a heating unit in the induction cookware 100. Here, in order to heat a pot placed on a panel 102, the coil winding 301 is mounted on one of the mounting surfaces of the mounting carrier 302 so as to be adjacent to the panel 102 of the induction cookware 100 when the mounting carrier 302 is mounted on the corresponding mounting station, and the magnet 2 is mounted on the other mounting surface of the mounting carrier 302, so that when the mounting carrier 302 is mounted on the corresponding mounting station, the magnet 2 is independently mounted on the mounting station, thereby concentrating magnetic flux on the corresponding coil winding 301 and improving the heating efficiency of the pot. In the prior art, when combining a coil winding and a magnet and mounting them on an electromagnetic heating coil disk, a separate fixed carrier must be installed between the coil winding and the magnet to separate the magnet from the coil winding. In contrast, in the present invention, the magnet 2 and the mounting carrier 302 are independent of each other, and the magnet 2 can be directly mounted on the corresponding mounting station, allowing for a variety of mounting forms and positions. The mounting method of the magnet 2 is simple, there is no need to mount the magnet 2 on the mounting carrier 302, and the assembly structure of the coil assembly 3 is also simple.

[0031] Furthermore, the induction cookware 100 to which the coil assembly 3 is applied is provided with a plurality of mounting stations, and the coil assembly 3 is mounted corresponding to each mounting station. That is, the plurality of coil assemblies 3 are densely arranged inside the panel 102 so that pots can be placed and heated over the entire area of ​​the panel 102. The larger the size of the coil assemblies 3, the wider the heating dead zone between two adjacent coil assemblies 3, which affects the heating effect of the induction cookware 100 on pots. Therefore, the outer diameter of the coil assembly 3 is preferably 80 mm or less.

[0032] 1 to 3, the present invention further provides an induction cooker 100, which includes a housing 1 and a plurality of coil assemblies 3. The housing 1 includes a mounting base 101 and a panel 102 covering the mounting base 101. The mounting base 101 is provided with a plurality of mounting stations, and the plurality of coil assemblies 3 are mounted corresponding to the plurality of mounting stations. Here, at each mounting station, the coil winding 301, the mounting carrier 302, and the magnet 2 are stacked in order along the direction from the panel 102 to the mounting base 101. The specific structure of the coil assembly 3 is based on the above-mentioned embodiments, and the present induction cooker 100 employs all the technical solutions of the above-mentioned embodiments and similarly achieves the beneficial effects of the technical solutions of the above-mentioned embodiments, so a description thereof will be omitted here.

[0033] That is, a plurality of mounting stations are provided on the mounting base 101, and the coil assembly 3 is attached to each mounting station to form one heating unit in the induction cooker 100. Here, the coil assembly 3 includes the mounting carrier 302 and the coil winding 301, and in order to heat a pot placed on a panel 102, the coil winding 301 is attached to the mounting carrier 302 so as to be located close to the panel 102 when the mounting carrier 302 is attached to the corresponding mounting station. The magnet 2 is independently attached to each mounting station and is located on the side of the coil winding 301 closer to the mounting base 101, thereby concentrating magnetic flux on the corresponding coil winding 301 and improving the heating efficiency of the pot. In the prior art, when combining a coil winding and a magnet and mounting them on an electromagnetic heating coil disk, a separate fixed carrier must be installed between the coil winding and the magnet to separate the magnet from the coil winding. In contrast, in the present invention, the magnet 2 and the mounting carrier 302 are independent of each other, and the magnet 2 can be directly mounted on the corresponding mounting station, allowing for a variety of mounting forms and positions. The mounting method of the magnet 2 is simple, there is no need to mount the magnet 2 on the mounting carrier 302, and the assembly structure of the coil assembly 3 is also simple.

[0034] Here, the specific type of the induction cooker 100 is not limited, and in this embodiment, the induction cooker 100 may specifically be an IH stove. After each mounting carrier 302 is mounted to the corresponding mounting station, the coil winding 301, the mounting carrier 302, and the magnet 2 are stacked in order, that is, the mounting carrier 302 is correspondingly disposed between the magnet 2 and the coil winding 301, and can separate the magnet 2 from the coil winding 301. Therefore, when the mounting distance between the magnet 2 and the coil winding 301 is too close and an AC current flows when the coil winding 301 is operating, discharge breakdown due to the influence of the magnet 2 can be avoided.

[0035] Furthermore, since the magnets 2 are independently mounted on the mounting stations, the magnets 2 are fixed by snapping into the corresponding mounting stations to prevent misalignment with the corresponding coil assemblies 3 during use of the induction cookware 100, which would affect the magnetic flux concentration effect of the corresponding coil windings 301. By snapping into the corresponding mounting stations, the magnets 2 are mechanically abutted and snapped into the mounting stations, which limits relative misalignment between the magnets 2 and the coil windings 301 in multiple directions, compared to the prior art, which fixes the magnets 2 by gluing. To achieve a better fixation effect, the magnets 2 may be glued to the contact surfaces when fitted into the mounting stations.

[0036] Here, in one embodiment, the mounting base 101 is provided with a protrusion 4 to form the mounting station, and the magnet 2 is provided with a first through-hole 5 to be fitted through the protrusion 4. By providing the protrusion 4 on each mounting station, when the protrusion 4 is fitted into the corresponding first through-hole 5, its outer periphery abuts against the hole wall of the first through-hole 5, and the magnet 2 can be positioned and fixed.

[0037] In contrast, in another embodiment, the mounting base 101 is provided with grooves 13 to form the mounting stations, and correspondingly, the grooves 13 are used to fit and insert the magnets 2. Since each mounting station is provided with the grooves 13 to fit the magnets 2, the groove walls abut against the outer periphery of the magnets 2 to restrain the outer periphery of the magnets 2, thereby achieving the effect of positioning and fixing the magnets 2.

[0038] In the two embodiments described above, there are no limitations on the installation form or number of the magnets 2, regardless of whether the mounting station is provided with the protrusions 4 or the recesses 13 to position and fix the magnets 2. For example, when the mounting of the magnets 2 and the coil assemblies 3 is completed in one mounting station, it is sufficient that at least a portion of the projection of the coil windings 301 located on the coil assembly 3 in the direction from the panel 102 to the mounting base 101 is located on the magnets 2 mounted in the same mounting station, and the magnets 2 have a magnetic flux concentrating effect on the corresponding coil windings 301, and the magnetic flux lines of the coil windings 301 are more concentrated, further improving heating efficiency and reducing the electromagnetic field radiation to the mounting base 101.

[0039] 3 and 4, in the above embodiment, in addition to the first through-hole 5 provided in the magnet 2, a snap member 6 is attached to the mounting carrier 302 on the side closer to the magnet 2, and a snap-fit ​​portion 7 is attached to the mounting base 101, and the snap member 6 passes through the first through-hole 5 of the magnet 2 and snap-fits into the snap-fit ​​portion 7. The coil assembly 3 is fixedly mounted by snap-fitting the snap member 6 to the mounting base 101. Here, since the magnet 2 is sandwiched between the mounting carrier 302 and the mounting base 101, a first through-hole 5 is provided through which the snap member 6 can directly pass through the magnet 2 so that the snap member 6 can pass through the magnet 2 and snap-fit ​​into the mounting station when the mounting carrier 302 is mounted to the mounting station. On the premise that the first through-holes 5 are used to fit the corresponding protrusions 4, the snap members 6 can also pass through them, diversifying their functions and improving the compactness of the installation of the entire device. The form of the snap-fit ​​portion 7 provided on the installation station is not limited, and it may be such that a single snap-fit ​​groove is provided at a position corresponding to the snap member 6 so that the snap member 6 passes through it and snaps into it, or a single locking portion is provided so that when the snap member 6 snaps into the snap-fit ​​portion 7, the tip of the snap member 6 snaps into the outer periphery of the corresponding locking portion.

[0040] Here, the number of snap members 6 to be installed is not limited and may be one or more. When one snap member 6 is provided, the snap member 6 can be attached to the center position of the mounting carrier 302, thereby improving the stability when the mounting carrier 302 is installed. When multiple snap members 6 are provided, the multiple snap members 6 can be provided around the mounting carrier 302, thereby improving the stability when the mounting carrier 302 is installed. Preferably, in this embodiment, one snap member 6 is provided, and is attached to the center of the mounting carrier 302. Compared with a technical solution in which multiple snap members 6 are provided, the mounting carrier 302 and the mounting base 101 only need to be connected at one location, which makes it easier to remove the mounting carrier 302 and the mounting base 101, provided that the mounting carrier 302 and the mounting base 101 are securely fastened together.

[0041] Preferably, in this embodiment, the mounting base 101 is provided with snap-fit ​​grooves 7a to form the corresponding snap-fit ​​portions 7. When the coil assembly 3 is mounted on the mounting station, the snap members 6 of the mounting carrier 302 can be directly snap-fitted into the corresponding snap-fit ​​grooves 7a, that is, the coil assembly 3 and the mounting bar 10b are mechanically engaged and mounted, improving the robustness of the connection between them.

[0042] Furthermore, the snap-fit ​​groove 7a is provided as an elongated groove, and correspondingly, the snap member 6 is provided in an elongated shape. Because the snap-fit ​​groove 7a and the snap member 6 are both provided in an elongated shape, when the coil assembly 3 is attached to the attachment station, the snap member 6 is snap-fitted into the snap-fit ​​groove 7a in an anti-rotation manner, thereby preventing the coil assembly 3 from rotating when attached to the attachment station and improving the stability of the connection.

[0043] Furthermore, since the first through-hole 5 of the magnet 2 is used to fit the protrusion 4 and can pass the snap member 6 through it, a first rib 4a is provided on the periphery of the snap-fit ​​groove 7a on the side of the mounting base 101 closer to the magnet 2 so as to form the protrusion 4, so as not to affect the penetration of the snap member 6 when the protrusion 4 is fitted into the first through-hole 5. The first rib 4a is provided on the periphery of the snap-fit ​​groove 7a and is provided so as to protrude from the snap-fit ​​groove 7a in the direction from the mounting base 101 to the panel 102, so that the magnet 2 can be fitted into the first through-hole 5 of the magnet 2 when mounted on the mounting base 101. The first rib 4a provided on the periphery does not block the opening positions at both ends of the snap-fit ​​groove 7a, so that the snap member 6 can be smoothly fitted into the snap-fit ​​groove 7a.

[0044] Furthermore, the coil winding 301 is a multi-turn coil wound from the inside to the outside, and has an inner lead on the inside and an outer lead on the outside. When the coil winding 301 is attached to the mounting carrier 302, it is difficult to lead the inner lead out of the mounting carrier 302 and connect it to the integrated circuit motherboard 16. Therefore, a second through hole 8 is provided in the mounting carrier 302, and the snap member 6 is hollow. The second through hole 8 and the cavity of the snap member 6 communicate to form an electric wire passage. Here, the second through hole 8 provided through the mounting carrier 302 corresponds to a position inside the coil winding 301. That is, the inner lead of the coil winding 301 can be introduced into the electric wire passage from the opening position of one end of the second through hole 8, and then led out of the cavity of the snap member 6 to the outside of the mounting carrier 302 via the electric wire passage, thereby facilitating wiring and attachment of the coil winding 301.

[0045] Furthermore, a second rib 9 is provided around the periphery of the second through-hole 8 on the mounting surface of the mounting carrier 302 to which the coil winding 301 is attached, and the second rib 9 is provided in a semi-encircling manner to form a wire groove 10 that communicates with the second through-hole 8. Here, since the second through-hole 8 is provided inside the coil winding 301, the second rib 9 is also provided correspondingly inside the coil winding 301, and the second rib 9 is provided in a semi-encircling manner to form the wire groove 10, so that the inner lead of the coil winding 301 can be introduced from the wire groove 10 into the wire passage, and the wire groove 10 positions the inner lead of the coil winding 301.

[0046] Furthermore, a pair of mounting grooves are recessed in the mounting surface of the mounting carrier 302 to which the coil winding 301 is attached, and the coil winding 301 is attached in correspondence with the mounting grooves, thereby protecting the coil winding 301.

[0047] The coil assembly 3 further includes a heat insulating plate 303, which is attached to the side of the coil winding 301 opposite the mounting carrier 302, and prevents heat from diffusing from the panel 102 to the coil winding 301 when a pot is placed on the panel 102 and heated. The heat insulating plate 303 and the coil winding 301 may be bonded together without being attached to the mounting carrier 302, which makes it easier to arrange them on the mounting carrier 302 and does not limit the installation form of the heat insulating plate 303. In this embodiment, the heat insulating plate 303 is provided as a mica sheet.

[0048] Furthermore, the coil assembly 3 further includes a temperature measuring component 304, which may be attached to the heat insulating plate 303 or the mounting carrier 302. When the temperature measuring component 304 is protruding from the coil winding 301 and the corresponding coil assembly 3 is attached to the induction cookware 100, the temperature measuring component 304 can measure the temperature of the overlapping area between the panel 102 and the corresponding coil assembly 3 when it is close to the inside of the panel 102, thereby enabling real-time monitoring of the temperatures of the panel 102 and the pot during cooking. Specifically, in this embodiment, the temperature measuring component 304 is attached to the mounting carrier 302 and close to its center, and correspondingly, the heat insulating plate 303 has a third through-hole 14 at its center, which communicates with the electric wire passage. When the temperature measuring component 304 is mounted on the mounting carrier 302, its lead wire can be pulled through the third through hole 14 into the wire passage and extended outside the mounting carrier 302, thereby facilitating connection of the lead wire of the temperature measuring component 304.

[0049] 1, the mounting base 101 includes a base 10a and a plurality of mounting bars 10b, the plurality of mounting bars 10b being spaced apart from one another on the base 10a, and each of the mounting bars 10b being provided with a plurality of snap-fit ​​grooves 7a. The plurality of mounting bars 10b are attached to the base 10a in a line at intervals, and each of the mounting bars 10b is provided with a plurality of snap-fit ​​grooves 7a, correspondingly, each of the mounting bars 10b has a plurality of mounting stations for mounting the magnet 2 and the coil assembly 3. Here, each of the coil assemblies 3 and the mounting bars 10b can be independently attached and detached, and each of the mounting bars 10b and the base 10a can also be independently attached and detached, which facilitates the attachment and detachment of components of the induction cooking appliance 100 and maintenance.

[0050] Here, the base 10a forms the case frame of the induction cooker 100. The base 10a is semi-enclosed to form an open-ended mounting cavity. The base 10a includes a mounting bottom plate 101a and a case base 102a. The case base 102a mainly surrounds the mounting cavity and serves to protect the components of the induction cooker 100. The mounting bottom plate 101a is located at the bottom of the case base 102a and is mainly used to mount the internal components of the induction cooker 100. That is, in this embodiment, the mounting bottom plate 101a is used to mount the mounting bars 10b. The induction cooker 100 further includes a heat dissipation fan 15, an integrated circuit motherboard 16, and a display control panel 17, which are all attached to the mounting base 101a and located in a mounting space formed by the mounting bars 10b and the mounting base plate 101a. Compared with the case where the coil assemblies 3 and the corresponding magnets 2 are directly attached to the mounting base 101a, when the mounting bars 10b are attached to the mounting base 101, the mounting bars 10b are spaced apart by the mounting base 101 in the direction from the mounting base 101 to the panel 102, so the mounting space formed by the spacing between the mounting base 101a and the mounting base 101a is wider, which makes it easier to arrange components such as the heat dissipation fan 15 on the base 101a.

[0051] In addition, since most induction cooktop frames are rectangular, forming a rectangular mounting cavity with an open top, if the mounting bar 10b is made elongated, both ends of the mounting bar 10b can be closer to the opposing side walls on both sides of the base 10a, and multiple mounting bars 10b can be spaced apart to fully utilize the area of ​​the mounting cavity of the base 10a.

[0052] Here, since the magnet 2 is engaged with the mounting bar 10b by the protrusion 4, the protrusion 4 may be provided on the side of the mounting bar 10b closer to the panel 102 or on the side closer to the mounting bottom plate 101a. To ensure the robustness of the mounting of the magnet 2, the magnet 2 is mounted on the side of the mounting bar 10b closer to the panel 102, so that when the snap member 6 is inserted into the snap-fit ​​groove 7a, the mounting carrier 302 can further restrict the magnet 2 from coming off.

[0053] Furthermore, in order to improve the heating efficiency of the coil winding 301 for cooking utensils placed on the panel 102, each mounting bar 10b is movable in the direction from the base 10a to the panel 102, and at least one elastic abutment 11 is attached between the mounting bar 10b and the base 10a. At least one elastic abutment 11 is attached between each mounting bar 10b and the base 10a, and the elastic abutment 11 elastically expands and contracts in the direction from the panel 102 to the base 10a, abutting the corresponding mounting bar 10b and bringing it close to the panel 102, thereby allowing the multiple coil assemblies 3 on that mounting bar 10b to abut against the inside of the panel 102 simultaneously, achieving a better cooking and heating effect. Compared to the electromagnetic heating coil disks used in the prior art, which require separate elastic members to be attached to the corresponding inner surfaces of the cooking panels 102, in this embodiment, the coil assemblies 3 are fixedly attached to the mounting bar 10b, and the elastic abutments 11 are attached between the mounting bar 10b and the base 10a. This reduces the number of elastic abutments 11 required when attaching the coil assemblies 3, and simplifies the installation process. The installation form of the elastic abutments 11 is not limited, and they may be straight springs, tower springs, etc.

[0054] Furthermore, since each mounting bar 10b is elongated, at least two elastic abutments 11 are provided correspondingly, spaced apart along the longitudinal direction of the corresponding mounting bar 10b. The mounting bar 10b is elongated, and two elastic abutments 11 are provided at a distance from each other at the lower end of the mounting bar 10b along its longitudinal direction to support both ends of the mounting bar 10b, thereby achieving stable support of the mounting bar 10b. Preferably, the two elastic abutments 11 are provided symmetrically about the center line in the longitudinal direction, thereby balancing the forces acting on both ends of the mounting bar 10b.

[0055] Furthermore, since it is necessary to mount components such as the heat dissipation fan 15 in the mounting spaces formed at intervals between the multiple mounting bars 10b and the base 10a, specifically in this embodiment, the two elastic abutments 11 are located close to both ends of each mounting bar 10b in the longitudinal direction. By making the distance between the two elastic abutments 11 as large as possible on the surface of the mounting bar 10b closer to the base 10a, the space between the two elastic abutments 11 becomes wider, making it easier to arrange and mount components such as the heat dissipation fan 15.

[0056] Furthermore, since the mounting bars 10b are arranged to be movable along the direction from the base 10a to the panel 102, at least one sliding portion 12 is provided on the side of each mounting bar 10b closer to the bottom plate to prevent displacement in other directions during the movement thereof, and at least one sliding groove is provided on the base 10a corresponding to the sliding portion 12, and the sliding portion 12 is arranged to move within the corresponding sliding groove to guide the movement of the corresponding mounting bar 10b. By fitting the sliding portion 12 into the sliding groove, both the sliding portion 12 and the sliding groove extend in the direction from the base 10a to the panel 102, and when the elastic abutment body abuts against the mounting bar 10b and approaches the panel 102, the sliding groove limits the sliding direction of the sliding portion 12, allowing the sliding portion 12 to move only in the direction from the bottom of the sliding groove to the opening, thereby limiting the movement direction of the mounting bar 10b to which the sliding portion 12 is correspondingly attached. Here, the number of the sliding portions 12 attached to the side of each mounting bar 10b closer to the base 10a is not limited, and preferably, in this embodiment, two position limiting portions are provided spaced apart in the width direction of the mounting bar 10b and close to the end of the mounting bar 10b, so that the relative rotation between the mounting bar 10b and the base 10a can be limited, and the stability of the attachment can be improved, provided that the attachment of other parts between the mounting bar 10b and the base 10a is not affected.

[0057] 1, 4 and 5, in the technical solution of the above-mentioned another embodiment in which the magnet 2 is positioned and mounted by fitting it into the groove 13, the mounting base 101 includes a base 10a and a plurality of mounting bars 10b, the mounting bars 10b are spaced apart on the base 10a, and a plurality of the grooves 13 are recessed into each mounting bar 10b on the side closer to the base 10a. That is, in this embodiment, the plurality of mounting bars 10b are spaced apart on the base 10a, and the magnet 2 and the coil assembly 3 are independently mounted on the mounting bars 10b, which facilitates the installation, removal and maintenance of components in the electromagnetic heating unit. Furthermore, since the coil assembly 3 is attached to the side of the mounting bar 10b closer to the panel 102, and the magnet 2 is attached to the side of the mounting bar 10b closer to the base 10a, the two can be easily attached and detached without interfering with each other, provided that it is ensured that the magnet 2 has a magnetic flux concentrating effect on the coil winding 301.

[0058] Here, the coil assembly 3 in this embodiment has the same structure as the coil assembly 3 in the above technical solution, in which the mounting station has the protrusion 4 to engage with the magnet 2, and the mounting bar 10b also has the same structure as the mounting bar 10b in the above embodiment. When the mounting bar 10b is provided with the elastic abutment 11 that abuts against the coil assembly 3 and brings it close to the panel 102, the elastic abutment 11 may be provided between the mounting carrier 302 and the mounting bar 10b, or between the mounting bar 10b and the base 10a. Preferably, in this embodiment, the elastic abutment 11 is provided between the mounting carrier 302 and the mounting bar 10b, and correspondingly, the mounting bar 10b can be fixedly attached to the base 10a.

[0059] When the elastic abutment 11 is provided between the mounting carrier 302 and the mounting bar 10b, it is understood that one end thereof is fixed to the mounting carrier 302 by a clasp provided on the mounting carrier 302 to facilitate assembly and installation.

[0060] Furthermore, since the coil winding 301, the mounting carrier 302 and the magnet 2 are stacked and mounted in order on the mounting base 101, the magnet 2 may be the mounting bar 10b, and the magnet 2 may be provided with the snap-fit ​​grooves 7a corresponding to each mounting station, thereby allowing the coil assembly 3 to be mounted.

[0061] The above is merely a preferred embodiment of the present invention, and does not limit the scope of the patent of the present invention. Any equivalent structural transformation made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application to other related technical fields, is also included in the scope of protection of the patent of the present invention. [Explanation of symbols]

[0062] 100...induction cooker, 1...housing, 101...mounting base, 10a...base, 101a...mounting bottom plate, 102a...case base, 10b...mounting bar, 102...panel, 2...magnet, 3...coil assembly, 301...coil winding, 302...mounting carrier, 303...insulating plate, 304...temperature measuring component, 4...convex portion, 4a...first rib, 5...first through hole, 6...snap member, 7...snap fit portion, 7a...snap fit groove, 8...second through hole, 9...second rib, 10...wire groove, 11...elastic abutment, 12...sliding portion, 13...concave groove, 14...third through hole, 15...heat dissipation fan, 16...integrated circuit motherboard, 17...display control panel.

Claims

1. a mounting carrier including two opposing mounting surfaces; a coil winding attached to one of the attachment surfaces; A magnet is provided on the other mounting surface and is to be attached to an electromagnetic cooker. Coil assembly.

2. a housing including a mounting base provided with a plurality of mounting stations and a panel covering the mounting base; a coil assembly including the coil assembly of claim 1 mounted correspondingly to a plurality of said mounting stations; In each of the mounting stations, the coil winding, the mounting carrier, and the magnet are stacked in order along a direction from the panel to the mounting base. Induction cooker.

3. 3. The induction cooker according to claim 2, wherein the magnet is fixed to the corresponding mounting station by being fitted thereto.

4. The mounting base is provided with a protrusion that forms the mounting station; The magnet is provided with a first through hole for passing through and fitting into the protrusion. The electromagnetic cooking appliance according to claim 3.

5. A snap member is further attached to the mounting surface of the mounting carrier on one side where the magnet is attached, and a snap fit portion is provided on the mounting base, and the snap member passes through a first through hole of the magnet and snaps into the snap fit portion. The electromagnetic cooking appliance according to claim 4.

6. The mounting base is provided with a snap-fit ​​groove that forms the corresponding snap-fit ​​portion. The electromagnetic cooking appliance according to claim 5.

7. The snap-fit ​​groove is provided as an elongated groove, and the snap member is correspondingly provided in an elongated shape. The electromagnetic cooking appliance according to claim 6.

8. A first rib that forms the protrusion is provided on the periphery of the snap-fit ​​groove on the side of the mounting base that is closer to the magnet. The electromagnetic cooking appliance according to claim 6.

9. The mounting carrier has a second through hole, and the snap member is hollow. The second through-hole and the cavity of the snap member communicate with each other to form an electric wire passage. The electromagnetic cooking appliance according to claim 6.

10. A second rib is provided around the periphery of the second through hole on one of the mounting surfaces of the mounting carrier to which the coil winding is attached, and the second rib is provided in a semi-encircling shape to form an electric wire passage communicating with the second through hole. The electromagnetic cooking appliance according to claim 9.

11. The mounting base is With the base, a plurality of mounting bars disposed at intervals within the base, each of the mounting bars having a plurality of the snap-fit ​​grooves; The electromagnetic cooking appliance according to claim 6.

12. Each of the mounting bars is movable along a direction from the base to the panel, and at least one elastic abutment is provided between the mounting bar and the base. The electromagnetic cooking appliance according to claim 11.

13. Each of the mounting bars has at least one sliding portion on a side closer to the base, The base is provided with at least one sliding groove corresponding to the sliding portion, and the sliding portion is adapted to move within the corresponding sliding groove and guide the movement of the corresponding mounting bar. The electromagnetic cooking appliance according to claim 12.

14. The mounting base has a recessed groove that forms a mounting station; Correspondingly, the groove is used for the magnet to be fitted and inserted; The electromagnetic cooking appliance according to claim 3.

15. The mounting base is With the base, a plurality of mounting bars provided at intervals within the base, and a plurality of the recessed grooves are recessed on the side of each of the mounting bars that is closer to the base. The electromagnetic cooking appliance according to claim 14.

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