Electromagnetic coil panel and electromagnetic cooking equipment thereof

Abstract

The electromagnetic coil panel and the electromagnetic cooking equipment thereof are characterized in that the electromagnetic coil panel comprises a coil panel body and a magnet, the coil panel body is provided with a wire set and an insulating wrapping tape, the insulating wrapping tape is provided with an adhesive part, and the insulating wrapping tape is arranged to be of a permeation structure which can be permeated and penetrated by the adhesive part in a liquid structure; the coil panel is of a disc-shaped structure through a winding structure of the wire group, and when the coil panel is heated, the adhesive part is arranged to be of a structure in which the adhesive part permeates and penetrates through the insulating wrapping tape from a solid structure to a liquid structure. When the adhesive part permeates towards the inner side of the cross section of the wire group under the liquid structure, the structure does not penetrate through the midpoint position of the cross section radius line M of the wire group; and when the coil panel is of a disc-shaped structure, an adhesive part is arranged to bond the wire groups of two adjacent parts into a connected structure. According to the scheme, the problem that the turn-to-turn short circuit effect between a plurality of wire cores of wire groups and between adjacent wire groups in an existing electromagnetic coil panel is poor is solved.

Description

Technical Field

[0001] The utility model relates to the field of kitchen appliances, in particular to an electromagnetic coil disk for electromagnetic heating and electromagnetic cooking equipment using the electromagnetic coil disk. Background Art

[0002] Existing electromagnetic cooking equipment, such as rice cookers, induction cookers, electric pressure cookers, etc., achieves the heating effect by setting up electromagnetic coil disks, among which some electromagnetic coil disks are provided with wire groups that can heat self-flowing glue. However, the structure of the wire group causes most of the glue to easily enter inward into a single wire core of the wire group during the self-flowing glue process. This causes the wire core to harden after the glue is bonded, making the wire group prone to forced bending or bending, and then cracking or breaking during the subsequent process of winding into the electromagnetic coil disk, making it easy for multiple wire cores in the wire group to short-circuit between turns, and the wire group is prone to burning. At the same time, after most of the glue overflows inward into the wire core, only a small part of the glue can overflow outward between adjacent wire groups, which results in a thin insulation layer between adjacent wire groups, or even holes in the insulation layer, resulting in poor insulation between adjacent wire groups and easy turn-to-turn short-circuit problems. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the above-mentioned related technologies at least to a certain extent.

[0004] Therefore, the purpose of the utility model is to provide an electromagnetic coil disk, which mainly solves the problem of poor inter-turn short-circuit effect between multiple wire cores of a wire group and between adjacent wire groups in the existing electromagnetic coil disk.

[0005] The embodiment of the utility model provides an electromagnetic coil disk, including a coil disk and a magnet, wherein the coil disk is provided with a wire group, wherein the wire group is provided with a structure formed by twisting a plurality of wire cores, and the coil disk is further provided with an insulating tape, wherein the insulating tape is provided with an adhesive portion in a solid structure, and the insulating tape is provided with a permeable structure that can be used for the adhesive portion in a liquid structure to penetrate through;

[0006] The wire group is arranged to have a coil disk structure through a winding structure, and when the coil disk is heated, the adhesive portion is arranged to be deformed from a solid structure to a liquid structure to form a structure in which the adhesive portion penetrates through the insulating tape, and when the adhesive portion penetrates toward the inner side of the cross section of the wire group in the liquid structure, it is arranged to form a structure in which the midpoint position of the cross-sectional radius line M of the wire group is not passed;

[0007] When the coil disk is in a disk-shaped structure, the adhesive portion is arranged to bond the wire groups of two adjacent parts into a connected structure through an insulating wrapping tape.

[0008] The aforementioned electromagnetic coil disk is configured such that the twisted structure on the wire group is formed so that the permeability of the wire group on the cross section is smaller than the permeability formed by the permeability structure on the insulating tape, so that the amount of glue that penetrates toward the inner side of the cross section of the wire group in the liquid structure is smaller than the amount of glue that penetrates toward the outer side of the insulating tape.

[0009] The aforementioned electromagnetic coil disk is arranged in the twisted structure of the wire group and has a structure containing an adhesive portion consisting of multiple wire cores of less than three layers from the outside to the inside in the cross-sectional direction of the wire group, and / or the cross-sectional area of ​​a region formed by multiple wire cores on the wire group that do not contain an adhesive portion is larger than the cross-sectional area of ​​a region formed by multiple wire cores on the wire group that contain an adhesive portion.

[0010] In the aforementioned electromagnetic coil disk, the insulating tape is wrapped around the outer surface of the wire group through a spiral winding structure, and at least two adjacent insulating tapes are arranged in the spiral winding structure to form a structure that at least partially overlaps.

[0011] The electromagnetic coil disk is arranged in a structure where the rear end of the insulating tape at the front side is partially overlapped and a portion of the front end of the insulating tape at the rear side is crimped and covered.

[0012] The aforementioned electromagnetic coil disk is provided with an insulating tape having a thickness greater than or equal to 0.01 mm and less than or equal to one half of the cross-sectional radius of the wire group;

[0013] Alternatively, the number of layers of the insulating tape coated on the outer surface of the wire group is set to be greater than or equal to one layer and less than or equal to three layers.

[0014] The aforementioned electromagnetic coil disk is provided with an insulating tape thickness greater than or equal to 0.02 mm and less than or equal to one third of the cross-sectional radius of the wire group, and a cross-sectional diameter of the wire group is provided greater than or equal to 1.2 mm and less than or equal to 3.2 mm.

[0015] The aforementioned electromagnetic coil disk, when the insulating tape is not wrapped around the wire group, the insulating tape and the adhesive portion thereon are configured to be a soft and deformable structure, and when the insulating tape is wrapped around the wire group and the wire group is wound to form a coil disk with a disk-like structure, the adhesive portion is a solid structure and a hard structure to keep the coil disk under the disk-like structure.

[0016] The electromagnetic coil disk is provided with a plurality of magnets in a radially distributed structure, and the plurality of magnets are arranged to be mounted on the lower end surface of the coil disk or on the lower end surface of the bracket through a bonding structure, and a magnetic conductive portion in a convex structure is arranged at the outer end of the magnet, and the magnetic conductive portion is arranged outside the side of the coil disk to form a wrapping structure for a part of the side of the coil disk;

[0017] Or, the area of ​​a single first penetration portion formed in the penetration structure of the insulating tape is larger than the area of ​​a single second penetration portion formed between two adjacent wire cores in the twisted structure of the wire group;

[0018] Or, the total number of first penetration parts formed in the penetration structure where the insulating tape is arranged in an equal area is greater than the total number of second penetration parts formed between the plurality of wire cores in the twisted structure of the wire group;

[0019] Or, the total area of ​​a plurality of first penetration parts formed in the penetration structure in which the insulating tape is arranged in an equal area is greater than the total area of ​​a plurality of second penetration parts formed between a plurality of wire cores in the twisted structure of the wire group;

[0020] Or, the heat temperature value at which the adhesive portion is deformed from a solid structure to a liquid structure is set to be greater than or equal to 140 degrees and less than or equal to 220 degrees, and the heat temperature value is set to be greater than the temperature value of the electromagnetic coil disk when it is working;

[0021] Alternatively, a structure is provided in which heat is transferred from the outside of the wire group to the inside of the wire group when the coil disk is heated, and a structure is provided in which no current flows through the wire group.

[0022] The electromagnetic cooking device comprises a cooker and also comprises the electromagnetic coil disk as mentioned above, wherein the electromagnetic coil disk is arranged to be located outside the cooker.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] In the present scheme, the adhesive portion can effectively realize a structure in which adjacent wire groups formed during the winding process are bonded and connected. The adhesive portion can not only penetrate the insulating tape, but also penetrate toward the inner side of the cross section of the wire group and form a structure that does not pass through the midpoint of the cross-sectional radius line M of the wire group. In this way, not only can the adhesive portion effectively form a uniform penetration bonding effect, but also can effectively form a uniform solid adhesive portion structure between adjacent wire groups, so that most of the adhesive portion is bonded to the insulating tape, so that the insulating tape effectively forms an isolation effect between adjacent wire groups, and effectively prevents short circuits between turns between adjacent wire groups.

[0025] In the present solution, the adhesive portion penetrates toward the inner side of the cross section of the wire group and is formed into a structure that does not pass through the midpoint of the cross-sectional radius line M of the wire group. In this way, most of the adhesive portion can be effectively penetrated into the insulating tape to effectively form an insulating tape with better isolation effect, thereby better forming the effect of insulating adjacent wire groups. At the same time, it can prevent the wire group from becoming hardened after being bonded to the adhesive portion due to the large number of adhesive portions, making the wire group prone to forced bending or folding and then cracking or breaking in the subsequent process of winding it into a coil disk, thereby greatly improving the reliability of the wire group.

[0026] In this solution, through the structure of the wire group and the structural setting of the insulating tape, most of the adhesive parts can be evenly penetrated in the liquid structure to gather on the insulating tape and on the outer surface and inner surface of the insulating tape and nearby positions, so that the insulating tape can be better formed to have a better isolation effect and insulation effect. When the adhesive part is in the solid structure, the permeable structure on the insulating tape can be blocked, so that the insulating tape can better form an insulation effect and enhance the effect of better preventing inter-turn short circuits between adjacent wire groups.

[0027] In this solution, the insulating tape is wrapped on the outer surface of the wire group through a spiral winding structure. Combined with the structural setting of the adhesive part, it can effectively improve the isolation and insulation effect between adjacent wire groups and greatly improve the reliability of the wire group.

[0028] In this solution, the permeable structure of the insulating tape and the twisted structure of the wire group make it easier for the adhesive part to penetrate the insulating tape in a liquid state to form a bond on the insulating tape and on the outer surface of the insulating tape and near the outer surface, thereby improving the permeable structure of the insulating tape to be effectively blocked by the adhesive part, improving the isolation and insulation effect of the insulating tape, and thereby improving the effect of better preventing inter-turn short circuits between adjacent wire groups. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the cross-section of a single wire group;

[0030] Figure 2 A schematic diagram of a coil disk wound with a single wire group to form a disk-like structure;

[0031] Figure 3 It is a schematic diagram of the bonding between adjacent wire group parts through the adhesive part and the penetration and overflow of the adhesive part during the winding process of a single wire group;

[0032] Figure 4 A schematic diagram of a magnet installed on the bottom end surface of a coil disk;

[0033] Figure 5 Schematic diagram of the distribution of magnets on the coil disk;

[0034] Figure 6 It is a schematic diagram of the structure in which the magnet is installed on the bottom end surface of the coil disk;

[0035] Figure 7 It is a schematic diagram of a structure in which a magnet is installed on the lower end surface of a bracket and a coil disk is installed on the upper end surface of the bracket;

[0036] Reference numerals: 1 - coil disk, 101 - wire group, 1011 - wire core, 102 - insulating tape, 1021 - adhesive portion, 2 - magnet, 3 - bracket. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments.

[0038] Embodiment: The electromagnetic coil disk of the utility model, such as Figures 1 to 7 As shown in the structure, the electromagnetic coil disk is mainly used to be installed in induction cookers, rice cookers, electric pressure cookers and other kitchen appliances that require electromagnetic heating. The structural setting of the electromagnetic coil disk enables it to have a better turn-to-turn short-circuit effect, which can effectively prevent the electromagnetic coil disk from burning out due to turn-to-turn short-circuit, greatly improving the stability and reliability of the electromagnetic coil disk.

[0039] The electromagnetic coil disk of the present scheme includes a coil disk 1 and a magnet 2, wherein the number of the magnets 2 is set to be multiple, and the magnets 2 and the coil disk 1 together constitute the structure of the electromagnetic coil disk, wherein the coil disk 1 is provided with a wire group 101, and the wire group 101 is provided with a structure formed by twisting a plurality of wire cores 1011, and the wire cores 1011 are mainly enameled wires made of copper or aluminum, and the plurality of wire cores 1011 are twisted by a twisting machine to form a single wire group 101; wherein the coil disk 1 is also provided with an insulating tape 102, and the insulating tape 102 has a certain thickness value to form a certain isolation and insulation effect, and the insulating tape 102 is provided to be coated on the outer surface of the wire group 101, mainly for the insulating tape 102 to form a single wire group 101. The insulating tape 102 is wound around and coated on the outer surface of the single wire group 101 to form a structure that is circumferentially wrapped on the outer surface of the single wire group 101, and an adhesive portion 1021 with a solid structure is provided on the insulating tape 102, and the insulating tape 102 is configured to be a permeable structure that can be used for the adhesive portion 1021 under the liquid structure to penetrate through; when the insulating tape 102 is not heated, the insulating tape 102 is provided with an adhesive portion 1021 with a solid structure, and the adhesive portion 1021 mainly penetrates and infiltrates the interior of the insulating tape 102, and the adhesive portion 1021 also adheres to the inner surface and the outer surface of the insulating tape 102, so as to form an outer surface of the insulating tape 102 at different positions, such as the interior, the inner surface, and the outer surface. The adhesive portion 1021 with a solid structure mainly has the following features: when the adhesive portion 1021 is heated and reaches the melting temperature of the adhesive portion 1021, the adhesive portion 1021 will melt from a solid structure to a liquid structure, and the adhesive portion 1021 under the liquid structure will penetrate and adhere to the interior, outer surface and inner surface of the insulating tape 102. When the heat is removed, the adhesive portion 1021 cools to form a solid structure adhered to the insulating tape 102. At this time, the insulating tape 102 can be wrapped around the outer surface of the single wire group 101 by winding, thereby forming a structure in which the insulating tape 102 is wrapped around the outer surface of the wire group 101. At this time, the single wire group 101 can be wound to form a coil disk. 1. During the process of forming the coil disk 1, the wire group 101 is heated and when the heating temperature reaches the melting temperature of the adhesive portion 1021, the adhesive portion 1021 on the insulating tape 102 will melt again to penetrate and overflow. The adhesive portion 1021 that penetrates and overflows will overflow inward onto the wire core 1011 and move outward to the outside of the insulating tape 102, thereby forming a structure in which adjacent wire groups 101 parts on a single wire group 101 are bonded and connected to each other during the winding process. At the same time, the insulating tape 102 and the adhesive portion 1021 thereon form an insulation effect to isolate the adjacent wire groups 101 parts on the single wire group 101, thereby improving the effect of better preventing inter-turn short circuits between adjacent wire groups 101.

[0040] The wire group 101 is configured to be wound to make the coil disk 1 have a disk-shaped structure, mainly a single wire group 101 is wound by a winding device, such as a close-winding winding device to wind the single wire group 101, and then formed into a circular disk-shaped structure or a square disk-shaped structure, etc. The single wire group 101 can be horizontally spirally wound to form a coil disk 1 with a disk-shaped structure. In the process of winding the single wire group 101, when the coil disk 1 is heated and the temperature value after heating is greater than or equal to When the adhesive portion 1021 melts at a temperature point, the adhesive portion 1021 is configured to be deformed from a solid structure into a liquid structure to form a structure in which the adhesive portion 1021 penetrates and passes through the insulating tape 102. After melting, the adhesive portion 1021 overflowing from the liquid structure will overflow inward onto the wire core 1011 and move outward to the outside of the insulating tape 102, thereby forming a structure in which adjacent wire groups 101 on a single wire group 101 are bonded and connected to each other during the winding process. At the same time, when the adhesive portion 1021 is configured to be deformed from a solid structure into a liquid structure, the adhesive portion 1021 will penetrate and pass through the insulating tape 102. When the adhesive portion 1021 penetrates toward the inner side of the cross section of the wire group 101 in the liquid structure, it is configured to not pass through the midpoint position of the cross-sectional radius line M of the wire group 101, that is, when the adhesive portion 1021 penetrates, it can penetrate from the inner surface of the insulating tape 102 to the midpoint position of the cross-sectional radius line M on the cross-sectional position of the single wire group 101, and will not continue to penetrate toward the center position or the inner side position of the wire group 101, so as to prevent the adhesive portion 1021 from penetrating and contacting too much on the single wire group 101. Most or most of the wire cores 1011, so that the wire cores 1011 in the center or middle area and near the area in the cross-sectional position of the single wire group 101 will not be contacted and bonded by the adhesive portion 1021, so as to prevent the wire cores 1011 in the wire group 101 from becoming hardened after being bonded to the adhesive portion 1021 due to the large number of adhesive portions 1021, making the wire group 101 prone to forced bending or bending and then cracking or breaking during the process of winding into the coil disk 1, thereby greatly improving the reliability of the wire group 101.

[0041] When the winding of a single wire group 101 is completed, the coil disk 1 will be in a disk-shaped structure. When the coil disk 1 is in a disk-shaped structure, an adhesive portion 1021 is provided to bond two adjacent parts of the wire group 101 to form a connected structure through the insulating tape 102, that is, the adjacent wire groups 101 formed during the winding of the single wire group 101 are in contact with each other as the insulating tapes 102 and the insulating tapes 102 are in contact with each other. At the same time, a bonding effect is formed under the penetration structure of the adhesive portion 1021, that is, part of the wire core 1011 at the outer ring position on the single wire group 101 and The insulating tape 102 thereon is bonded and fixed by the adhesive portion 1021, and the adjacent wire groups 101 parts are bonded and fixed by the adjacent insulating tapes 102 through the adhesive portion 1021, so that the adjacent wire groups 101 are formed into a bonded and connected structure, and the adjacent parts of the single wire group 101 are self-bonded to form a disc-shaped structure of the coil disk 1. At the same time, the insulating tape 102 is configured to isolate the adjacent wire groups 101 and form an insulating effect, effectively preventing the problem of inter-turn short circuit between the adjacent wire groups 101 parts of the single wire group 101.

[0042] It can be understood that when the coil disk 1 is heated, the adhesive portion 1021 is configured to be deformed from a solid structure into a liquid structure to form a structure in which the adhesive portion 1021 penetrates and passes through the insulating tape 102. At this time, the coil disk 1 is heated mainly by setting an external heating device. For example, when the wire group 101 is wound by a winding device to form the coil disk 1, a heating device is set to heat the wire group 101, so that the adhesive portion 1021 melts and becomes a liquid structure. Under the liquid structure, the adhesive portion 1021 effectively penetrates and achieves the bonding of adjacent wire groups 101 to the insulating tape 102, forming mutual The result of bonding; when the winding of the wire group 101 is completed, that is, the coil disk 1 is wound into a disk-shaped structure, the coil disk 1 can no longer be heated by the heating device. At this time, the adhesive portion 1021 will be naturally cooled and solidified, and changed from liquid to solid. In this way, the adhesive portion 1021 and the insulating tape 102 under the solid structure form an effect of isolating the insulation between adjacent wire groups 101. At the same time, the adhesive portion 1021 forms a structure that bonds the adjacent wire groups 101 to the insulating tape 102, so that the coil disk 1 remains under the disk-shaped structure and will not fall apart, thereby realizing the winding of the coil disk 1 and the effect of bonding through the adhesive portion 1021.

[0043] In the present solution, the twisted structure on the wire group 101 is mainly set to form a permeability of the wire group 101 on the cross section that is smaller than the permeability formed by the permeability structure on the insulating tape 102, so that the amount of glue that penetrates toward the inner side of the cross section of the wire group 101 in the liquid structure of the adhesive portion 1021 is smaller than the amount of glue that penetrates toward the outer side of the insulating tape 102. The insulating tape 102 is mainly set to be a mesh-like structure with openings, so that the insulating tape 102 itself is constituted as a penetrable structure. The number of openings on the insulating tape 102 or the area occupied or the distribution density can be selected and set as needed, and it is only necessary to satisfy that the permeability formed by the permeability structure on the insulating tape 102 is greater than the permeability of the wire group 101 on the cross section formed by the twisted structure on the single wire group 101. In this way, under the same conditions, the amount of glue that penetrates through the insulating tape 102 in the liquid state is greater than that of the adhesive portion 1021. The amount of glue 1021 that penetrates through the cross section of the wire group 101 in the liquid structure makes it easier and more likely that most of the adhesive portion 1021 adhered to the insulating tape 102 can penetrate into the outer area of ​​the insulating tape 102, while a relatively small amount of the adhesive portion 1021 penetrates into the inner area of ​​the inner surface of the insulating tape 102 and contacts the wire core 1011. This not only allows adjacent wire group 101 parts of a single wire group 101 to form a better insulation effect through the insulating tape 102 and the adhesive portion 1021 of the solid structure thereon, but also makes the amount of glue bonded to the wire core 101 relatively small, thereby preventing the wire group 101 from becoming hardened after being bonded to the adhesive portion 1021 due to the large number of adhesive portions 1021, making it easy for the wire group 101 to be forced to bend or fold during the process of being wound into the coil disk 1, and then cracking or breaking.

[0044] Among them, the permeability of the wire group 101 in the cross section formed by the twisted structure on the single wire group 101 can be achieved by setting the twisting method and twisting parameters of the twisting machine, such as the twisting density, the twisting rate, etc., so as to achieve that the permeability of the wire group 101 formed by the twisted structure in the cross section can be less than the permeability formed by the permeable structure on the insulating tape 102.

[0045] Optionally, multiple wire cores 1011 arranged in the twisted structure of the wire group 101 and less than three layers from the outside to the inside in the cross-sectional direction of the wire group 101 are constituted to have a structure containing an adhesive portion 1021, that is, the twisted structure of the wire group 101 is arranged so that the outer surface of the wire group 101 faces the inside of the cross-section so that multiple wire cores 1011 at a maximum of three layers from the outside to the inside in the cross-sectional direction can be contacted by the adhesive portion 1021, thereby forming a bonding connection structure between the insulating tape 102 and the wire group 101. In this way, the wire group 101 can be prevented from becoming hardened after being bonded to the adhesive portion 1021 due to the large number of adhesive portions 1021, making it easy for the wire group 101 to be forced to bend or folded during the process of being wound into the coil disk 1, and then cracking or breaking, thereby greatly improving the reliability of the wire group 101.

[0046] And / or, optionally, the cross-sectional area of ​​the region formed by the multiple wire cores 1011 on the wire group 101 without the adhesive portion 1021 is set to be larger than the cross-sectional area of ​​the region formed by the multiple wire cores 1011 on the wire group 101 with the adhesive portion 1021, that is, in the area corresponding to the cross-sectional position of the single wire group 101, the cross-sectional area of ​​the region formed by the multiple wire cores 1011 without the adhesive portion 1021 is relatively large, while the cross-sectional area of ​​the region formed by the multiple wire cores 1011 with the adhesive portion 1021 is relatively small, so that the amount of glue bonded to the wire core 101 is relatively small, thereby preventing the problem that the multiple wire cores 1011 in the wire group 101 become hardened after being bonded to the adhesive portion 1021 due to the large number of adhesive portions 1021, making the wire group 101 prone to forced bending or folding and then cracking or breaking during the process of winding into the coil disk 1.

[0047] It can be understood that, firstly, the twisted structure of the single wire group 101 makes the multiple wire cores 1011 on the wire group 101 twisted and not easy to separate and disperse, and the single wire group 101 is formed as a whole and is not easy to disperse. At the same time, the insulating tape 102 is wrapped around the outer surface of the wire group 101 to form a covering force, making the single wire group 101 more difficult to disperse. In this case, although only a small part of the adhesive portion 1021 contacts the wire core 1011 so that the wire core 1011 and the insulating tape 102 are bonded and connected, the insulating tape 102 can also effectively make the wire group 101 tightly connected, the wire group 101 will not be dispersed, and the insulating tape 102 will not be separated from the wire group 101, and the overall reliability is high.

[0048] In the present solution, the insulating tape 102 is configured to be wrapped around the outer surface of the wire group 101 by a spiral winding structure, and at least two adjacent parts of the insulating tape 102 are provided in the spiral winding structure to form a structure that at least partially overlaps, at this time, a solid adhesive portion 1021 is adhered to the insulating tape 102, and then the insulating tape 102 is wound around the outer surface of the single wire group 101 by a winding device, and the winding method is that the insulating tape 102 is prevented from being wrapped around the outer surface of the single wire group 101 by spiral winding, wherein at least two adjacent parts of the insulating tape 102 are provided in the spiral winding structure to form a structure that at least partially overlaps, so that the outer surface of the single wire group 101 that is not wrapped by the insulating tape 102 can be better prevented, so as to better achieve the insulating effect of the insulating tape 102 on the outer surface of the single wire group 101, and prevent the problem of inter-turn short circuit between adjacent parts of the single wire group 101.

[0049] Among them, the specific structural part is arranged in a structure that at least partially overlaps, and a part of the rear end position of the insulating tape 102 located at the front side position is configured to be crimped and covered on a part of the front end position of the insulating tape 102 located at the rear side position. In the structure in which the insulating tape 102 spirally wraps the single wire group 101, the insulating tape 102 is continuously and uninterruptedly spirally wound from the current starting position point of the single wire group 101 toward the end position point. During this process, the single wire group 101 is pulled to move, and the insulating tape 102 is spirally wound around the outer surface of the single wire group 101 by spiral rotation, forming a continuous spiral winding from the starting point position of the rear end toward the end position of the front end. Continuous winding forms at least a partially overlapping structure in the front-to-back direction, and further forms a part of the rear end position of the insulating tape 102 located at the front side in the at least partially overlapping structure, which is crimped and covered on a part of the front end position of the insulating tape 102 located at the rear side to avoid gaps between adjacent parts of the insulating tape 102 placed in the front-to-back direction. In this way, the insulating tape 102 can be tightly and continuously wrapped around the outer surface of a single wire group 101 without intervals, forming a more reliable winding effect. At the same time, when a single wire group 101 is wound into a coil disk 1, the overlapping structure of the insulating tape 102 can better form an insulating effect.

[0050] In the present solution, the thickness of the insulating tape 102 is set to be greater than or equal to 0.01 mm and less than or equal to half of the cross-sectional radius of the wire group 101, so that the insulating tape 102 can not only be better spirally wound on the outer surface of the single wire group 101, but also the insulating tape 102 can be better penetrated by the adhesive portion 1021 under the liquid structure. At the same time, the insulating tape 102 can better form an insulating effect, and can also prevent the problem of high cost and poor bonding effect of the adhesive portion 1021 due to the excessive thickness of the insulating tape 102.

[0051] Alternatively, in this solution, the number of layers of the insulating tape 102 wrapped on the outer surface of the wire group 101 is greater than or equal to one layer and less than or equal to three layers, so that the insulating tape 102 can form a better isolation and insulation effect, thereby improving the effect of preventing the coil disk 1 from having inter-turn short circuits, and at the same time preventing the problem of high cost and poor bonding effect of the adhesive part 1021 due to too many layers of the insulating tape 102.

[0052] In the present solution, the thickness of the insulating tape 102 is set to be greater than or equal to 0.02 mm and less than or equal to one third of the cross-sectional radius of the wire group 101, and the cross-sectional diameter of the wire group 101 is set to be greater than or equal to 1.2 mm and less than or equal to 3.2 mm. In this way, the insulating tape 102 can not only be better spirally wound on the outer surface of the single wire group 101, but also the insulating tape 102 can be better penetrated by the adhesive portion 1021 under the liquid structure. At the same time, the insulating tape 102 can better form an insulating effect, and can also prevent the problems of high cost and poor bonding effect of the adhesive portion 1021 due to the excessive thickness of the insulating tape 102.

[0053] In this solution, when the insulating tape 102 is not wrapped around the wire group 101, the insulating tape 102 and the adhesive portion 1021 thereon are configured to be a soft and deformable structure. When the insulating tape 102 is wrapped around the wire group 101 and the wire group 101 is wound to form a coil disk 1 with a disk-like structure, the adhesive portion 1021 is a solid structure and a hard structure to keep the coil disk 1 under the disk-like structure. When the adhesive portion 1021 with a solid structure is adhered to the insulating tape 102, the insulating tape 102 and the adhesive portion 1021 thereon are both soft structures. At this time, the insulating tape 102 adhered with the adhesive portion 1021 can be spirally wound around a single wire group 101 to achieve the covering of the single wire group 101 by the insulating tape 102. The single wire group 101 with the insulating tape 102 is then wound into a disc-shaped structure. During the winding process, the insulating tape 102 with the adhesive portion 1021 is heated so that the adhesive portion 1021 of the solid structure on the insulating tape 102 is melted and turned into a liquid structure to penetrate the insulating tape 102 and bond part of the wire core 1011. Then, the coil disk 1 will solidify the liquid adhesive portion 1021 under natural cooling to restore to a solid state. At this time, the adhesive portion 1021 is also a hard structure with a certain hardness under the solid structure, thereby achieving bonding within the entire disc-shaped range of the coil disk 1 to keep the coil disk 1 under the disc-shaped structure and not to fall apart.

[0054] In the present solution, the number of magnets 2 is set to be multiple and the multiple magnets 2 are in a radial distribution structure, and the multiple magnets 2 are set to be installed on the lower end surface of the coil disk 1 or on the lower end surface of the bracket 3 through a bonding structure, and a magnetic conductive portion with a convex structure is provided at the outer end position of the magnet 2, and the magnetic conductive portion is arranged on the outer side of the side of the coil disk 1 to form a wrapping structure for a part of the side of the coil disk 1. The multiple magnets 2 are mainly used to form a radial distribution structure surrounding the center position of the coil disk 1, thereby forming a better guided magnetic field distribution. The magnets 2 can be bonded to the bottom surface or the lower end surface of the coil disk 1 by silicone glue or the like to achieve the magnet 2 and the coil disk. The connection and fixation between the magnet 2 and the coil disk 1 can also be achieved by bonding them to the bottom surface or the lower end surface of the bracket 3 through silicone glue or the like, and then the coil disk 1 is clamped or bonded to the bracket 3, and at the same time, a magnetic conductive portion with a convex structure is provided at the outer end position of the magnet 2 to better guide and distribute the magnetic field, and the magnetic conductive portion is located on the outer side of the side of the maximum outer diameter position of the coil disk 1 to form a wrapping structure for the side of the maximum outer diameter position of the coil disk 1, thereby effectively forming a guiding effect on the magnetic field, preventing the magnetic field from diffusing to the outer position of the coil disk 1, and forming a guided magnetic field that is more concentrated in the projection area formed by the coil disk 1 projecting upward in the vertical direction.

[0055] Alternatively, in this embodiment, the area of ​​a single first penetration portion formed in the penetration structure of the insulating tape 102 is larger than the area of ​​a single second penetration portion formed between two adjacent wire cores 1011 in the twisted structure of the wire group 101, that is, in the penetration structure formed by the mesh or silk tape structure of the insulating tape 102, a plurality of first penetration portions are formed on the insulating tape 102, and the plurality of first penetration portions can be used for the adhesive portion 1021 under the liquid structure to penetrate through. At the same time, the twisted inoculation of the wire group 101 will form a plurality of second penetration portions between the plurality of wire cores 1011, and the plurality of second penetration portions can be used for the adhesive portion 1021 under the liquid structure to penetrate through. By setting the area of ​​a single first penetration portion larger than the area of ​​a single second penetration portion, the adhesive portion 1021 can be Since it is easier and more likely to penetrate into the outer area of ​​the insulating tape 102, a relatively small portion of the adhesive portion 1021 penetrates into the inner area of ​​the inner surface of the insulating tape 102 and contacts the wire core 1011 and penetrates between the multiple wire cores 1011. This not only allows adjacent wire groups 101 parts of a single wire group 101 to form a better insulation effect through the insulating tape 102 and the adhesive portion 1021 of the solid structure thereon, but also makes the amount of glue bonded to the wire core 101 relatively small, preventing the wire group 101 from becoming hardened after being bonded to the adhesive portion 1021 due to the large number of adhesive portions 1021, making it easy for the wire group 101 to be forced to bend or fold during the process of being wound into a coil disk 1, and then cracking or breaking.

[0056] Alternatively, in the present embodiment, the total number of first penetration parts formed in the penetration structure of the insulating tape 102 arranged in equal area is greater than the total number of second penetration parts formed between the multiple wire cores 1011 in the twisted structure of the wire group 101, that is, the mesh or silk tape structure of the insulating tape 102 forms a penetration structure with multiple first penetration parts on the insulating tape 102, and the multiple first penetration parts can be used for the adhesive part 1021 under the liquid structure to penetrate through. At the same time, the twisted inoculation of the wire group 101 will form multiple second penetration parts between the multiple wire cores 1011, and the multiple second penetration parts can be used for the adhesive part 1021 under the liquid structure to penetrate through. By setting the total number of first penetration parts to be greater than the total number of second penetration parts, the adhesive part 1021 has more channels for penetrating through when penetrating through the insulating tape 102, and the adhesive part 1021 penetrates through multiple wire cores 101 on the wire group 101. There are relatively few channels for penetration when the wire cores 1011 are penetrated, so that the adhesive portion 1021 can penetrate more easily and more to the outer area of ​​the insulating tape 102, and a relatively small part of the adhesive portion 1021 penetrates to the inner area of ​​the inner surface of the insulating tape 102 and contacts the wire core 101 and penetrates between the multiple wire cores 1011. This not only allows the adjacent wire group 101 parts of a single wire group 101 to form a better insulation effect through the insulating tape 102 and the solid structure adhesive portion 1021 thereon, but also makes the amount of glue bonded to the wire core 101 relatively small, preventing the wire group 101 from becoming hardened after the adhesive portion 1021 is bonded due to the large number of adhesive portions 1021, making the wire group 101 prone to forced bending or folding and then cracking or breaking during the process of winding into the coil disk 1.

[0057] Or, in this scheme, the total area of ​​multiple first penetration parts formed in the penetration structure of the insulating tape 102 set in equal area is greater than the total area of ​​multiple second penetration parts formed between the multiple wire cores 1011 in the twisted structure of the wire group 101, that is, the mesh or silk tape structure of the insulating tape 102 forms a penetration structure with multiple first penetration parts on the insulating tape 102, and the multiple first penetration parts can be used for the adhesive part 1021 under the liquid structure to penetrate through. At the same time, the twisted inoculation of the wire group 101 will form multiple second penetration parts between the multiple wire cores 1011, and the multiple second penetration parts can be used for the adhesive part 1021 under the liquid structure to penetrate through. At the same time, the total area of ​​the multiple first penetration parts limited in equal area is greater than the total area of ​​the multiple second penetration parts, so that the adhesive part 1021 has a larger area to penetrate through when penetrating through the insulating tape 102, and the adhesive part 102 When penetrating through the multiple wire cores 1011 on the wire group 101, there is a relatively small area for penetration, so that the adhesive portion 1021 can penetrate more easily and more into the outer area of ​​the insulating tape 102, and a relatively small part of the adhesive portion 1021 penetrates into the inner area of ​​the inner surface of the insulating tape 102 and contacts the wire core 1011 and penetrates between the multiple wire cores 1011. In this way, not only can the adjacent wire group 101 parts of the single wire group 101 be able to form a better isolation and insulation effect through the insulating tape 102 and the adhesive portion 1021 of the solid structure thereon, but also the amount of glue bonded to the wire core 101 is relatively small, so as to prevent the wire group 101 from being hardened after being bonded to the adhesive portion 1021 due to the large number of adhesive portions 1021, so that the wire group 101 is prone to forced bending or bending during the process of winding into the coil disk 1, and then cracking or breaking.

[0058] Or, in the present embodiment, the heating temperature value at which the adhesive portion 1021 is deformed from a solid structure to a liquid structure is set to be greater than or equal to 140 degrees and less than or equal to 220 degrees, and the heating temperature value is set to be greater than the temperature value of the electromagnetic coil disk when it is working, that is, the temperature value at which the adhesive portion 1021 melts and becomes liquid when heated is set to be greater than or equal to 140 degrees and less than or equal to 220 degrees, and the temperature value is also greater than the temperature value of the electromagnetic coil disk when it is working. In this way, when the coil disk 1 is used in normal working conditions, the adhesive portion 1021 will not melt due to heating, but only when the single wire group 101 is heated by an independent heating device during the winding process, the adhesive portion 1021 will melt into a liquid structure. This can effectively provide the coil disk 1 with reliability and stability to maintain the disc-like structure.

[0059] Optionally, the temperature value at which the adhesive portion 1021 melts can be matched and set according to the material composition of the adhesive portion 1021 so that the adhesive portion 1021 can meet the performance.

[0060] Alternatively, in the present embodiment, when the coil disk 1 is heated, a structure is provided in which heat is transferred from the outside of the wire group 101 toward the inside of the wire group 101, and the wire group 101 is provided in a structure in which no current is passed. When a heating device is provided to heat the coil disk 1 or a single wire group 101 so that the adhesive portion 1021 is melted from a solid structure to a liquid structure, the heating structure is mainly provided in which heat is transferred from the outside of the wire group 101 toward the inside of the wire group 101. At this time, the wire group 101 itself does not generate heat, and at this time, the wire group 101 is in a structure in which no current is passed, so that the heating effect of heat transfer is formed to melt the adhesive portion 1021 on the insulating tape 102, thereby realizing a structure in which adjacent wire groups 101 parts of the single wire group 101 are connected through the insulating tape 102, and a connected fixed structure is bonded through the adhesive portion 1021.

[0061] Optionally, under the disc-shaped structure of the coil disk 1, mainly, in the adjacent wire groups 101 on the single wire group 101, such as the outer wire group 101 and the inner wire group 101 are adjacent, and at the same time, the outer wire group 101 has an insulating tape 102, and the inner wire group 101 also has an insulating tape 102, and the insulating tape 102 has an adhesive portion 1021. Under the disc-shaped structure, the outer wire group 101 is connected to the insulating tape 102 thereon, and the inner wire group 101 is connected to the insulating tape 102 thereon. At the same time, the outer wire group 101 is connected to the insulating tape 102 thereon. The insulating tape 102 and the insulating tape 102 on the inner wire group 101 are bonded to each other through the adhesive portion 1021 to achieve a connection effect, and finally the outer wire group 101 and the inner wire group 101 are connected through the insulating tape 102 on both. The insulating tapes 102 on both and the adhesive portion 1021 on the insulating tape 102 together constitute an isolation insulation effect between the outer wire group 101 and the inner wire group 101, thereby achieving a better overall insulation effect and better preventing inter-turn short circuits.

[0062] Optionally, the insulating tape 102 is configured as a mesh structure, or as a silk tape structure, so that a permeable structure is formed on the insulating tape 102 that can be used for the adhesive portion 1021 in a liquid state to penetrate through. The mesh structure or silk tape structure on the insulating tape 102 enables the insulating tape 102 to form multiple first permeable portions, and the first permeable portions form a channel structure that can be used for the adhesive portion 1021 in a liquid state to penetrate through.

[0063] Optionally, multiple wire cores 1011 are twisted to form a single wire group 101. After the twisting is completed, since the wire core 1011 is a round enameled wire, a second permeable portion will be formed between the multiple wire cores 1011. The second permeable portion forms a channel structure through which the adhesive portion 1021 in a liquid state can penetrate. The adhesive portion 1021 in a liquid state can penetrate through the second permeable portion to be coated on the outer surface of part of the wire core 1011, thereby forming a structure in which the wire group 101 and the insulating tape 102 are bonded to each other.

[0064] In the present embodiment, the electromagnetic cooking device includes a cooker, which may be a flat-bottomed cooker or a curved-bottomed cooker, and also includes the electromagnetic coil disk as described above, which is arranged to be located on the outside of the cooker. The electromagnetic coil disk can be arranged on the outside of the bottom of the cooker to heat the cooker. When the electromagnetic cooking device is started, the electromagnetic coil disk is energized to heat the cooker, thereby realizing the function of heating the cooker for cooking.

[0065] It can be understood that when the electromagnetic coil disk is installed in the electromagnetic cooking device, the electromagnetic cooking device can be started. After the startup, the coil disk 1 will form an energized structure. Under the energized structure, the coil disk 1 itself will generate heat. At the same time, the radiant heat generated by the cookware during the heating process will also form a certain heating effect on the coil disk 1. Although the electromagnetic coil disk will be heated at this time, the temperature value formed in this heating state will be relatively lower than the heating temperature value of the adhesive portion 1021 to melt and deform into a liquid. At this time, the adhesive portion 1021 will not become a liquid structure, but will always remain in a solid structure, thereby keeping the coil disk 1 in a disc-shaped structure, so that the electromagnetic coil disk can be effectively used to heat the cookware.

[0066] The electromagnetic cooking device of this solution can be an electric rice cooker, an induction cooker, an electric pressure cooker, etc., and can be set to correspond to different shapes of pots, as long as the electromagnetic coil disk can be used to heat the pots.

[0067] Working principle: The electromagnetic coil disk in this solution, through the arrangement of the wire group 101, the insulating tape 102, and the adhesive portion 1021, can achieve effective penetration of the adhesive portion 1021 under the liquid structure, which can effectively improve the isolation insulation effect of the insulating tape 102, and at the same time can effectively bond the adjacent wire groups 101 to the insulating tape 102, so that the wire group 101 can be wound to form a disc-shaped structure of the coil disk 1, and remain in the disc-shaped structure under the adhesive portion 1021. The electromagnetic cooking device of this solution includes the electromagnetic coil disk of this application, which is used for heating pots. After the electromagnetic cooking device is started, the electromagnetic coil disk will form an energized structure. Under the energized structure, the insulating tape 102 and the adhesive portion 1021 under the solid structure thereon can effectively form an isolation insulation effect, effectively preventing the problem of inter-turn short circuit between adjacent wire groups 101, and improving the reliability and stability of the electromagnetic coil disk.

[0068] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for realizing the present invention, and in actual applications, various changes may be made in form and detail without departing from the spirit and scope of the present invention, all of which are within the protection scope of the present invention.

Claims

1. An electromagnetic coil disk, comprising a coil disk and a magnet, wherein the coil disk is provided with a wire group, wherein the wire group is provided with a structure formed by twisting a plurality of wire cores, and wherein: The coil disk is also provided with an insulating tape, which is arranged to cover the outer surface of the wire group, and the insulating tape is provided with an adhesive portion in a solid structure, and the insulating tape is arranged to have a permeable structure that can be used for the adhesive portion in a liquid structure to penetrate through; The wire group is arranged to have a coil disk structure through a winding structure, and when the coil disk is heated, the adhesive portion is arranged to be deformed from a solid structure to a liquid structure to form a structure in which the adhesive portion penetrates through the insulating tape, and when the adhesive portion penetrates toward the inner side of the cross section of the wire group in the liquid structure, it is arranged to form a structure in which the midpoint position of the cross-sectional radius line M of the wire group is not passed; When the coil disk is in a disk-shaped structure, the adhesive portion is arranged to bond the wire groups of two adjacent parts into a connected structure through an insulating wrapping tape.

2. The electromagnetic coil disk according to claim 1, characterized in that: The twisted structure on the wire group is arranged so that the permeability of the wire group on the cross section is smaller than the permeability formed by the permeation structure on the insulating tape, so that the amount of glue that penetrates toward the inner side of the cross section of the wire group in the liquid structure is smaller than the amount of glue that penetrates toward the outer side of the insulating tape.

3. The electromagnetic coil disk according to claim 1, characterized in that: A plurality of wire cores of less than three layers arranged in the twisted structure of the wire group from the outside to the inside in the cross-sectional direction of the wire group constitute a structure containing an adhesive portion, and / or a cross-sectional area of ​​a region formed by the plurality of wire cores on the wire group that do not contain an adhesive portion is larger than a cross-sectional area of ​​a region formed by the plurality of wire cores on the wire group that contain an adhesive portion.

4. The electromagnetic coil disk according to claim 1, 2 or 3, characterized in that: The insulating tape is wrapped on the outer surface of the wire group through a spiral winding structure, and at least two adjacent insulating tapes are arranged in the spiral winding structure to form a structure that at least partially overlaps.

5. The electromagnetic coil disk according to claim 4, characterized in that: In the at least partially overlapping structure, a portion of the rear end position of the insulation tape located at the front side is configured to be crimped and covered with a portion of the front end position of the insulation tape located at the rear side.

6. The electromagnetic coil disk according to claim 5, characterized in that: Set the thickness of the insulation tape to be greater than or equal to 0.01 mm and less than or equal to half of the cross-sectional radius of the wire group; Alternatively, the number of layers of the insulating tape coated on the outer surface of the wire group is set to be greater than or equal to one layer and less than or equal to three layers.

7. The electromagnetic coil disk according to claim 6, characterized in that: The thickness of the insulating tape is set to be greater than or equal to 0.02 mm and less than or equal to one third of the cross-sectional radius of the wire group, and the cross-sectional diameter of the wire group is set to be greater than or equal to 1.2 mm and less than or equal to 3.2 mm.

8. The electromagnetic coil disk according to claim 1, 2, 3 or 7, characterized in that: When the insulating tape is not wrapped around the wire group, the insulating tape and the adhesive portion thereon are configured to be a soft and deformable structure. When the insulating tape is wrapped around the wire group and the wire group is wound to form a coil disk with a disc-like structure, the adhesive portion is a solid structure and a hard structure to keep the coil disk under the disc-like structure.

9. The electromagnetic coil disk according to claim 8, characterized in that: The number of magnets is set to be multiple and the multiple magnets are radially distributed, and the multiple magnets are arranged to be installed on the lower end surface of the coil disk or the lower end surface of the bracket through a bonding structure, and a magnetic conductive part with a convex structure is arranged at the outer end of the magnet, and the magnetic conductive part is arranged to be located outside the side of the coil disk to form a wrapping structure for a part of the side of the coil disk; Or, the area of ​​a single first penetration portion formed in the penetration structure of the insulating tape is larger than the area of ​​a single second penetration portion formed between two adjacent wire cores in the twisted structure of the wire group; Or, the total number of first penetration parts formed in the penetration structure where the insulating tape is arranged in an equal area is greater than the total number of second penetration parts formed between the plurality of wire cores in the twisted structure of the wire group; Or, the total area of ​​a plurality of first penetration parts formed in the penetration structure in which the insulating tape is arranged in an equal area is greater than the total area of ​​a plurality of second penetration parts formed between a plurality of wire cores in the twisted structure of the wire group; Or, the heat temperature value at which the adhesive portion is deformed from a solid structure to a liquid structure is set to be greater than or equal to 140 degrees and less than or equal to 220 degrees, and the heat temperature value is set to be greater than the temperature value of the electromagnetic coil disk when it is working; Alternatively, a structure is provided in which heat is transferred from the outside of the wire group to the inside of the wire group when the coil disk is heated, and a structure is provided in which no current flows through the wire group.

10. An electromagnetic cooking device, including a pot, characterized in that: It also comprises the electromagnetic coil disk according to any one of claims 1 to 9, wherein the electromagnetic coil disk is arranged to be located outside the cookware.

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