WO2022052458A1 - Ensemble disque de bobine et dispositif de chauffage électromagnétique - Google Patents

Ensemble disque de bobine et dispositif de chauffage électromagnétique Download PDF

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Publication number
WO2022052458A1
WO2022052458A1 PCT/CN2021/085644 CN2021085644W WO2022052458A1 WO 2022052458 A1 WO2022052458 A1 WO 2022052458A1 CN 2021085644 W CN2021085644 W CN 2021085644W WO 2022052458 A1 WO2022052458 A1 WO 2022052458A1
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WIPO (PCT)
Prior art keywords
coil
coil winding
disk assembly
winding
wire
Prior art date
Application number
PCT/CN2021/085644
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English (en)
Chinese (zh)
Inventor
范吉昌
易亮
王小鹰
吴金华
郭兴家
张翼飞
Original Assignee
佛山市顺德区美的电热电器制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN202010944822.0A external-priority patent/CN114173440A/zh
Priority claimed from CN202021964139.5U external-priority patent/CN212305699U/zh
Application filed by 佛山市顺德区美的电热电器制造有限公司 filed Critical 佛山市顺德区美的电热电器制造有限公司
Publication of WO2022052458A1 publication Critical patent/WO2022052458A1/fr

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H05B6/44—Coil arrangements having more than one coil or coil segment

Definitions

  • the present application relates to the technical field of kitchen appliances, in particular, to a coil disk assembly and an electromagnetic heating device.
  • the existing electromagnetic heating cooker 200 ′ is mostly a square structure, and the coil disk assembly 100 ′ is mostly circular, and the circular coil disk assembly 100 ′ is placed in the square electromagnetic heating cooker 200 ′.
  • the electromagnetic heating cooker 200' There are many areas in the electromagnetic heating cooker 200' that are not covered by the circular coil plate assembly 100'. If the pot moves to these places during cooking, the pot cannot be heated in these areas, which will affect the heating efficiency of the product.
  • the present application aims to solve at least one of the technical problems existing in the prior art.
  • a first aspect of the present application provides a coil disk assembly.
  • a second aspect of the present application provides an electromagnetic heating device.
  • an embodiment of the first aspect of the present application provides a coil disk assembly, including: a bracket; The area of the largest inscribed circle that can be accommodated.
  • the coil disk assembly provided by the embodiment of the present application includes a bracket and a coil winding, the coil winding is arranged on the bracket, the coil winding is arranged in a non-circular shape, and the area where the coil winding is arranged is larger than the maximum inscribed area that can be accommodated in the bracket
  • the area of the circle when the coil disk assembly provided by this application is applied to a square electromagnetic heating device (such as an electromagnetic cooker) commonly used in the related art, by changing the circular coil winding in the related art to the non-perfect circle of the application
  • the area of the coil winding provided by the embodiment of the present application is larger than the area of the largest inscribed circle that can be accommodated in the bracket, that is, when the coil winding is arranged in a certain area, the coil of the embodiment of the present application
  • the area of the winding must be larger than the area of the circular coil winding in the related art, so that the space utilization rate of the square electromagnetic cooker in the related art can be improved, and the heating range and heating uniformity of the product
  • the coil disk assembly provided according to the above technical solutions of the present application also has the following additional technical features:
  • the number of coil windings is multiple.
  • the overall heating area of the coil disk assembly is larger, and the coil disk assembly can be applied to most of the existing round pots, square pots and other pots in the market. Moreover, it can also be suitable for heating special-shaped pots (such as oval, etc.), and ensure that the heating area is maximized.
  • the coil winding is a multi-turn densely wound winding structure, and the multi-turn coils are closely arranged.
  • any one of the multiple coil windings can also be used alone, and when a single coil winding is used for heating, it can achieve heating of small pots; and when multiple coil windings work together, it is suitable for heating large pots.
  • the coil disc assembly can be applied to cookware of various sizes and shapes, and the utilization rate and application scope of the product are improved.
  • the shapes of the plurality of coil disks may be the same or different, for example, a combination of an elliptical coil disk and a square coil disk, a combination of a rectangular coil disk and a square coil disk, and a rectangular coil disk are used. It can be combined with elliptical coil discs and other combinations to form a coil disc assembly.
  • the coil winding includes a first side and a second side that are orthogonal to each other and extend in a horizontal direction, and the length of the first side of the coil winding is greater than or equal to the length of the second side of the coil winding.
  • the coil winding includes a first side and a second side that are orthogonal to each other and extend in the horizontal direction, and the length of the first side is greater than or equal to the length of the second side.
  • an electromagnetic heating device such as an electromagnetic cooker
  • the circular coil winding in the related art is changed into the structure of the application with a relatively long first side and a relatively short second side, or the length of the first side and the second side. Equal structure, and the arrangement of multiple coil windings of this structure can improve the space utilization rate of the square electromagnetic cooker in the related art, and improve the heating range and heating uniformity of the product.
  • the coil winding when the lengths of the first side and the second side of the coil winding are equal, the coil winding may be in a shape similar to a square; when the length of the first side of the coil winding is greater than the length of the second side, the coil winding may be Similar to rectangle, oval shape.
  • the coil winding of the present application can have various shapes, for example, an ellipse, a rectangle, a square, an irregular figure whose outer contour includes two straight line segments and two arc line segments, and the like.
  • the coil winding is elliptical
  • the first side of the coil winding corresponds to the extension direction of the long axis of the ellipse
  • the second side of the coil winding corresponds to the extension direction of the short axis of the ellipse.
  • the coil winding is rectangular, the first side of the coil winding corresponds to the longer side of the rectangle, and the second side of the coil winding corresponds to the shorter side of the rectangle.
  • the outer contour of the coil winding includes two straight line segments and two arc line segments, specifically, each straight line segment is connected between the two arc line segments, that is, the coil winding is in an ellipse-like shape, wherein the extension of the straight line segment
  • the outer contour size of the coil disk in the direction is larger than the outer contour size of the coil disk in the extension direction of the arc segment.
  • the first side of the coil winding corresponds to the setting side of the straight line segment, and the second side of the coil winding corresponds to the arc segment. settings side.
  • the number of brackets may be one or more.
  • the number of supports is one, a plurality of coil windings are jointly arranged on one support, one support saves parts, and also reduces the installation steps of the coil disk assembly, so that the production efficiency can be improved.
  • the plural supports are in one-to-one correspondence with the plurality of coil windings, and one coil winding is arranged on one support to form a coil disk. It is worth noting that, in the case that a bracket is provided with a corresponding coil winding, in order to make the coil winding cover the surface of the bracket as much as possible, the coil winding is set to match the bracket, and the longer side of the bracket is in line with the coil winding.
  • the first side is arranged oppositely, and the shorter side of the bracket is arranged opposite to the second side of the coil winding.
  • the stent of the present application may have various shapes, for example, an oval, a rectangle, a square, an irregular figure whose outer contour includes two straight line segments and two arc line segments, and the like.
  • the coil winding includes multiple turns of coils; any coil in the coil winding includes: two first wire segments, the two first wire segments are arranged opposite to each other, and the first wire segment is connected to the first wire segment of the coil winding.
  • the extension direction of one side is the same, and the first wire segment is in an arc shape or a straight line; two second wire segments are arranged oppositely, and the second wire segment is in an arc shape or a straight line.
  • the coil winding includes multiple coils, and any coil in the coil winding includes two first wire segments and two second wire segments, the two first wire segments are arranged oppositely, and the first The wire segment extends in the same direction as the first side of the coil winding, the two second wire segments are arranged opposite to each other, and the coil windings are formed by closely coiling the multiple turns of the coil.
  • the extending direction of the first wire segment and the first side is the same, that is, the extending direction of the first wire segment is the same as the extending direction of the relatively long first side in the coil winding.
  • first wire segment is in the shape of an arc or a straight line
  • second wire segment is in the shape of an arc or a straight line.
  • any coil is oval.
  • first wire segment is linear and/or the second wire segment is linear
  • the first wire segment and/or the second wire segment of the outermost circle of the coil winding can be distributed as far as possible on the support of the coil disk. Therefore, the space of the bracket of the coil disk assembly can be maximized, the coverage area of the coil winding on the bracket can be increased, and the heating area of the coil disk can be increased.
  • the first wire segment is in a straight line
  • the first sides of the plurality of coil windings are opposite to each other, that is, the straight first wire of the plurality of coil windings
  • the segments are opposite to each other, so that the area of the coil winding not covered by the blind area between the adjacent two coil windings is smaller, and the heating blind area is smaller than the combination of the two coil discs in which the first wire segment is curved, thereby increasing the number of coil disc components.
  • any coil in the coil winding further includes: a connecting segment connecting the first wire segment and the second wire segment, and the connecting segment is arc-shaped.
  • any coil in the coil winding also includes a connection segment connecting the first wire segment and the second wire segment.
  • the connection segment is arc-shaped, which can prevent the wire from having a sharp bending angle and avoid the coil winding. fracture, extending the life of the coil windings.
  • multiple coil windings are distributed on the same horizontal plane, and the first sides of two adjacent coil windings are opposite to each other.
  • multiple coil windings are distributed on the same horizontal plane, and the first sides of two adjacent coil windings are opposite to each other. Therefore, the length occupied by the combined arrangement of the multiple coil windings is small, so as to avoid problems such as excessively long length of the electromagnetic heating device and excessively large volume of the electromagnetic heating device caused by the coil winding being applied to the electromagnetic heating device.
  • the distribution of the coil windings is reasonable, and the heating range is large.
  • the size of the first side of the coil winding ranges from 100mm to 300mm; the size of the second side of the coil winding ranges from 25mm to 240mm, and the size of the first side of the coil winding ranges from 25mm to 240mm. greater than the size of the second side of the coil winding.
  • the dimensions of the coil windings are further defined.
  • the value range of the size of the first side of the coil winding is 100mm to 300mm, and the lower limit value can ensure that the coil winding has a sufficient heating length, so that the heating range of the coil winding can at least be suitable for commonly used small size cookware ;
  • the upper limit value can limit the length of the coil winding, so as to limit the space occupied by the coil disk assembly, so that the coil disk assembly can be applied to a smaller electromagnetic heating device.
  • the value range of the size of the second side of the coil winding is 25mm to 240mm
  • the lower limit value can ensure that the coil winding has a sufficient heating width after the combination of multiple coil disks, so that the heating range of the coil winding can be at least suitable for Commonly used small size cookware
  • the upper limit value can limit the width of the coil winding, thereby limiting the space occupied by the coil disk assembly, so that the coil disk assembly can be applied to smaller electromagnetic heating devices.
  • the size of the second side of the coil winding is greater than or equal to 1/4 of the size of the first side of the coil winding, and less than or equal to 4/5 of the length of the coil winding.
  • the size of the second side of the coil winding is further defined to be greater than or equal to 1/4 of the size of the first side of the coil winding, and less than or equal to 4/5 of the size of the first side of the coil winding.
  • the upper limit of the size of the second side of the coil winding ensures that the size of the first side of the coil winding is larger than the size of the second side of the coil winding, thereby ensuring that the coil winding is integrally formed in two
  • the lower limit of the size of the second side of the coil winding can limit the size of the first side of the coil winding, so as to limit the size of the coil disk assembly in the coil winding. The space occupied in the length direction is limited, so that the difference between the size of the second side of the coil winding and the size of the first side of the coil winding is not too large, so that the size of the coil winding is reasonable.
  • multiple coil windings are connected in parallel; the inductance of the coil windings ranges from 80 ⁇ H to 160 ⁇ H.
  • multiple coil windings are further limited to be connected in parallel, so that any one of the multiple coil windings can work independently, and heating of small pots can be achieved when a single coil winding is used for heating; of course, multiple coil windings can also be used.
  • After working together in parallel when multiple coil windings work together, it is suitable for heating large pots, so that the coil disk assembly can be applied to pots of various sizes and shapes, and the utilization rate and application scope of the product are improved.
  • the value range of the inductance of the coil winding is 80 ⁇ H to 160 ⁇ H. Within this range, the power of the multiple coil windings after being energized in parallel or individually can meet the requirements, which is suitable for the requirements of electromagnetic heating devices.
  • test conditions for the inductance of the coil winding are: 1KHZ/1V, and no metal is provided at the bottom of the coil winding during the test.
  • multiple coil windings are connected in series; the inductance of the coil windings ranges from 30 ⁇ H to 80 ⁇ H.
  • multiple coil windings are further limited to be connected in series, so that multiple coil windings work together after being connected in series.
  • they are suitable for heating large pots.
  • the heating area is large and the efficiency is high, which improves the utilization of products. rate and scope of application.
  • the value range of the inductance of the coil winding is 30 ⁇ H to 80 ⁇ H. Within this range, the power of the multiple coil windings after being energized in series meets the requirements, which is suitable for the requirements of the electromagnetic heating device.
  • test conditions for the inductance of the coil winding are: 1KHZ/1V, and no metal is provided at the bottom of the coil winding during the test.
  • the first wire segment is straight, and the length of the first wire segment is less than or equal to 4/5 of the size of the first side of the coil winding; and/or the second wire segment is straight, and the second wire The length of the wire segment is less than or equal to 4/5 of the size of the second side of the coil winding.
  • the first wire segment is straight, and the length of the first wire segment is less than or equal to 4/5 of the size of the first side of the coil winding, that is, multiple turns of the first wire segment form the first wire segment.
  • the straight edge area the length of the first straight edge area is less than 4/5 of the overall length of the coil winding.
  • the connecting section can have enough space for installation, and the distribution rate of the straight section and the arc section can be ensured, and the first straight edge can be avoided. If the edge area is too long, the arc of the connection section is too small, which can prevent the wire from having a sharp bending angle, prevent the coil winding from breaking, and prolong the service life of the coil winding.
  • the second wire segment is in a straight line shape, and the length of the second wire segment is less than or equal to 4/5 of the size of the second side of the coil winding, that is, multiple turns of the second wire segment form a second straight side area, and the second The length of the straight edge area is less than 4/5 of the overall width of the coil winding.
  • the connecting section can have enough space for installation, which can ensure the distribution rate of the straight section and the arc section, and avoid the second straight edge area being too long. If the arc of the connection section is too small, the wire can be prevented from having a sharp bending angle, the coil winding can be prevented from being broken, and the service life of the coil winding can be prolonged.
  • the first wire segment is linear, and the first wire segments of the plurality of coil windings are parallel; or the second wire segment is linear, and the second wire segments of the plurality of coil windings are parallel; or the first wire segment is linear.
  • the wire segment and the second guide segment are linear, and the first wire segments or the second wire segments of the plurality of coil windings are parallel.
  • the first wire segment is linear, and the first wire segments of the plurality of coil windings are parallel, so that the space occupied by the plurality of coil windings after being arranged is smaller.
  • the first wire segments of two adjacent coil windings in the plurality of coil windings are arranged opposite to each other, and the first wire segments are linear. Since the linear first wire segments of the plurality of coil windings are opposite to each other, the The non-covered blind area of the coil windings between two adjacent coil windings is smaller, which is smaller than the heating blind area of the combination of the two coil disks in the related art in which the first wire segment is curved, thereby increasing the number of coil disk components.
  • the second wire segment is defined to be linear, and the second wire segments of the plurality of coil windings are parallel, so that the space occupied by the plurality of coil windings after being arranged is smaller.
  • the second wire segments of two adjacent coil windings among the plurality of coil windings are arranged opposite to each other, and the second wire segments are in a straight line shape.
  • the linear second wire segments of the plurality of coil windings are opposite, the The non-covered blind area of the coil windings between two adjacent coil windings is smaller, and the heating blind area is smaller than the combination of the two coil disks in the related art in which the second wire segment is curved, thereby increasing the number of coil disk components.
  • increase the coverage area and heating area of the coil winding reduce the heating blind area of the coil disk assembly, increase the coupling resistance or inductance of the heating appliance (for example, the pot) above the coil disk assembly, improve the heating power, improve the heating efficiency, and reduce the product Quality risks and prolong product life.
  • the first wire segment and the second wire segment are both linear, and the first wire segments or the second wire segments of the multiple coil windings are parallel, so that the arrangement of the multiple coil windings takes up less space.
  • the support is flat and the coil windings are arranged on the support.
  • the coil disk also includes a bracket, the bracket is used to install the coil winding, and the bracket plays the role of supporting and fixing.
  • the bracket is provided with grooves in which the coil windings are mounted.
  • the bracket is provided with a groove, and by arranging the groove on the bracket, the reliability and accuracy of the assembly position of the coil winding can be ensured.
  • a protruding portion is provided on the bracket, the coil winding can be arranged on the outer periphery of the protruding portion, and the protruding portion can limit the shape of the innermost wire of the coil winding to ensure that the shape of the coil winding is regular and controllable.
  • the protruding portion may be a boss.
  • the protruding part is located in the groove, which is convenient for installing the coil winding in the groove of the bracket, and the limit of the protruding part and the groove can ensure the coil winding. The reliability and accuracy of the assembly position.
  • the coil winding is connected to the bracket by adhesive bonding, and the adhesive connection has good firmness, and there is no need to provide a fixing structure for the coil winding, which simplifies the structure of the bracket, and the operation steps for pasting are also simple.
  • the coil winding and the bracket can be pasted and connected by glue or the like.
  • an electromagnetic heating device which has the coil disk assembly provided by any embodiment of the first aspect. Therefore, the electromagnetic heating device provided by the embodiment of the present application has any embodiment of the first aspect. All the beneficial effects of the provided coil disc assembly are not listed here.
  • FIG. 1 shows a schematic structural diagram of a coil disk assembly in the related art
  • FIG. 2 shows a schematic structural diagram of a coil disk of a coil disk assembly according to an embodiment of the present application
  • FIG. 3 shows a schematic diagram of the connection relationship between multiple coil windings of the coil disk assembly according to an embodiment of the present application, and shows the connection state of the parallel connection between the multiple coil windings;
  • FIG. 4 shows a schematic diagram of the connection relationship between multiple coil windings of the coil disk assembly according to another embodiment of the present application, and shows the connection state of the series connection between the multiple coil windings;
  • FIG. 5 shows a schematic structural diagram of a coil disk assembly according to an embodiment of the present application
  • FIG. 6 shows a schematic structural diagram of a coil disk assembly according to another embodiment of the present application.
  • FIG. 7 shows a schematic structural diagram of a coil disk assembly according to still another embodiment of the present application.
  • FIG. 8 shows a schematic structural diagram of a coil disk of a coil disk assembly according to an embodiment of the present application
  • FIG. 9 shows a schematic structural diagram of a coil disk of a coil disk assembly according to another embodiment of the present application.
  • FIG. 10 shows another schematic structural diagram of a coil disk of a coil disk assembly according to an embodiment of the present application.
  • FIG. 11 shows another schematic structural diagram of a coil disk of a coil disk assembly according to another embodiment of the present application.
  • 100 coil disc assembly 110 coil disc, 120 coil winding (120a first coil winding, 120b second coil winding), 121 first wire segment, 122 second wire segment, 123 connecting segment, 124 terminal (A1), 125 Terminal (A2), 126 terminal (B1), 127 terminal (B2), 130 bracket, 132 groove, 134 protrusion.
  • the coil disk assembly 100 and the electromagnetic heating device provided according to some embodiments of the present application are described below with reference to FIGS. 2 to 11 .
  • an embodiment of the first aspect of the present application provides a coil disk assembly 100 , the coil disk assembly 100 includes a bracket 130 and a coil winding 120 , and the coil winding 120 is arranged on the bracket 130 , The coil winding 120 is arranged on the bracket 130, the coil winding 120 is arranged in a non-circular shape, and the area of the coil winding 120 is larger than the area of the largest inscribed circle that can be accommodated in the bracket 130.
  • the circular coil winding in the related art is changed to the non-circular coil winding 120 of the present application, and the present application is set
  • the area of the coil winding 120 provided by the embodiment of the present application is larger than the area of the largest inscribed circle that can be accommodated in the bracket, that is, when the coil winding 120 is arranged in a certain area, the area of the coil winding 120 in the embodiment of the present application must be It is larger than the area of the circular coil winding in the related art, so that the space utilization rate of the square electromagnetic cooker in the related art can be improved, and the heating range and heating uniformity of the product can be improved.
  • the second embodiment provides a coil disk assembly 100, wherein the number of the coil windings 120 is multiple.
  • the coil plate assembly 100 By setting the coil plate assembly 100 to include a plurality of coil windings 120, the overall heating area of the coil plate assembly 100 is larger, and the coil plate assembly 100 can be applied to most of the existing round pots, square pots and other pots in the market , and can also be applied to heating special-shaped pots (such as oval, etc.), and ensure that the heating area is maximized.
  • the coil winding 120 is a multi-turn densely wound winding structure, and the multi-turn coils are closely arranged.
  • any one of the plurality of coil windings 120 can also be used alone, and when one coil winding 120 is used alone to heat a small pot, heating can be achieved; The cookware is heated, so that the coil pan assembly 100 can be applied to cookware of various sizes and shapes, thereby improving the utilization rate and application scope of the product.
  • the shapes of the plurality of coil disks 110 may be the same or different.
  • the coil winding 120 includes a first side and a second side that are orthogonal to each other and extend in the horizontal direction, and the length of the first side is greater than or equal to the length of the second side.
  • an electromagnetic cooker by changing the circular coil winding in the related art into a structure with a relatively long first side and a relatively short second side, or a structure with the same length of the first side and the second side of the present application, Moreover, the arrangement of a plurality of coil windings 120 of this structure can improve the space utilization rate of the square electromagnetic cooker in the related art, and improve the heating range and heating uniformity of the product.
  • the coil winding 120 may be in a shape similar to a square; when the length of the first side of the coil winding 120 is greater than the length of the second side, the coil The winding 120 may be shaped like a rectangle, oval.
  • the coil winding 120 with the first side and the second side of the present application can have various shapes, for example, an ellipse, a rectangle, a square, and the outer contour includes two straight line segments and two arc line segments. into irregular shapes, etc.
  • the first side of the coil winding 120 corresponds to the extension direction of the long axis of the ellipse
  • the second side of the coil winding 120 corresponds to the extension direction of the short axis of the ellipse.
  • the coil winding 120 is rectangular, the first side of the coil winding 120 corresponds to the longer side of the rectangle, and the second side of the coil winding 120 corresponds to the shorter side of the rectangle.
  • the outer contour of the coil winding 120 includes two straight line segments and two arc line segments, specifically, each straight line segment is connected between the two arc line segments, that is, the coil winding 120 is elliptical-like, wherein the straight line segment is
  • the outer contour size of the coil disk 110 in the extension direction of the arc segment is larger than the outer contour size of the coil disk 110 in the extension direction of the arc segment.
  • the first side of the coil winding 120 corresponds to the setting side of the straight line segment, and the second side of the coil winding The edge corresponds to the set side of the arc segment.
  • the number of the brackets 130 may be one or more. As shown in FIG.
  • the coil winding 120 is set to match the bracket 130, and the bracket 130 is relatively small.
  • the long side is arranged opposite to the first side of the coil winding 120
  • the shorter side of the bracket 130 is arranged opposite to the second side of the coil winding 120 .
  • the stent 130 of the present application may have various shapes, for example, an ellipse, a rectangle, a square, an irregular figure whose outer contour includes two straight line segments and two arc line segments, and the like.
  • the bracket 130 in the case where one bracket 130 is correspondingly provided with one coil winding 120 , the bracket 130 specifically adopts a rectangular structure, so that the structure of the bracket 130 is regular and easy to process.
  • the space occupied by the combination of the plurality of brackets 130 is also small, and the combination of the plurality of coil disks 110 can form a larger and regular heating area, so that the pots and the like can be accurately placed in the electromagnetic field. In the heating area of the heating device, it is convenient to use the electromagnetic heating device.
  • the coil disk assembly 100 further includes a groove 132 , and by arranging the groove 132 on the bracket 130 , the reliability and accuracy of the assembly position of the coil winding 120 can be ensured.
  • a protruding portion 134 is provided on the bracket 130 , the coil winding 120 can be surrounded by the outer periphery of the protruding portion 134 , and the protruding portion 134 can limit the innermost wire of the coil winding 120
  • the shape of the coil winding 120 ensures that the shape of the coil winding 120 is regular and controllable.
  • the protruding portion 134 may be a boss.
  • the protruding portion 134 is located in the groove 132, so that the coil winding 120 can be easily installed in the groove 132 of the bracket 130.
  • the limit of the slot 132 can ensure the reliability and accuracy of the assembly position of the coil winding 120 .
  • the coil winding 120 and the bracket 130 are bonded and connected, and the bonding and connection have good firmness, and there is no need to provide a fixing structure for the coil winding 120, which simplifies the structure of the bracket 130, and the operation steps for bonding are also simple.
  • the coil winding 120 and the bracket 130 can be pasted and connected by glue or the like.
  • the bracket 130 is formed by injection molding of a plastic material.
  • the bracket 130 can be made of polybutylene terephthalate (PBT), polyethylene terephthalate (PET), acrylonitrile-butadiene-styrene plastic ( Acrylonitrile Butadiene Styrene plastic, ABS), bulk molding compound (Bulk Molding Compound, BMC), plastic raw materials.
  • the coil winding 120 is connected to the bracket 130 . Coil windings 120 are formed by twisting strands of aluminum or copper wires tightly wound.
  • the winding method of the coil winding 120 on the bracket 130 includes: (1) The wire is directly wound on the bracket 130 , and the protruding portion 134 may be provided on the bracket 130 , specifically The protruding portion 134 is a boss, and the shape of the coil winding 120 is controlled by the boss. For example, if the boss is elliptical, the inner circle of the coil winding 120 is elliptical, and if the boss is square, the inner circle of the coil winding 120 is square. (2) The coil winding 120 can be wound and formed separately and then mounted on the bracket 130. The shape of the inner circle of the coil winding 120 is controlled by the shape of the winding tool.
  • the third embodiment proposes a coil disk assembly 100 , and specifically defines a plurality of coil windings 120 to be distributed on the same horizontal plane , the first sides of the two adjacent coil windings 120 are opposite to each other, that is, when the multiple coil windings 120 are arranged in combination, the second sides of the coil windings 120 are superimposed, so that after the multiple coil windings 120 are arranged in combination
  • the occupied length is small, so as to avoid problems such as excessive length of the electromagnetic heating device caused by the coil winding 120 when applied to the electromagnetic heating device, resulting in excessive volume of the electromagnetic heating device, etc., so that the distribution of the plurality of coil windings 120 is reasonable, and the heating Great range.
  • the value range of the size L1 of the first side of the coil winding 120 is 100 mm to 300 mm
  • the lower limit value can ensure that the coil winding 120 has a sufficient heating length, so that the heating range of the coil winding 120 At least it can be applied to commonly used small-sized cookware
  • the upper limit can limit the length dimension of the coil winding 120, so as to limit the space occupied by the coil disk assembly 100, so that the coil disk assembly 100 can be applied to Smaller electromagnetic heating device.
  • the value range of the size W1 of the second side of the coil winding 120 is 25 mm to 240 mm, and the lower limit value can ensure that the coil winding 120 has a sufficient heating width after the combination of the plurality of coil disks 110, so that the heating of the coil winding 120 is sufficient.
  • the range is at least suitable for commonly used small-sized cookware; the upper limit can limit the width of the coil winding 120, thereby limiting the space occupied by the coil disk assembly 100, so that the coil disk assembly 100 can be applied for smaller electromagnetic heating devices.
  • the size W1 of the second side of the coil winding is greater than or equal to 1/4 of the size L1 of the first side of the coil winding, and less than or equal to 4/5 of the size L1 of the first side of the coil winding .
  • the upper limit of the size W1 of the second side of the coil winding ensures that the size L1 of the first side of the coil winding is larger than the size W1 of the second side of the coil winding, so that the entire coil winding 120 can be ensured
  • the lower limit of the size W1 of the second side of the coil winding can limit the size L1 of the first side of the coil winding, so as to limit the size of the coil winding.
  • the space occupied by the disk assembly 100 in the length direction of the coil winding 120 is limited, so that the difference between the size W1 of the second side of the coil winding and the size L1 of the first side of the coil winding will not be too large, so that the coil The size of the winding 120 is reasonable.
  • a plurality of coil windings 120 are connected in parallel, so that any one of the plurality of coil windings 120 can work independently, and when a single coil winding 120 is used for heating Small pot heating can be achieved; of course, multiple coil windings 120 can also work together in parallel, and when multiple coil windings 120 work together, they are suitable for heating large pots, so that the coil disk assembly 100 can be applied to various sizes and shapes. It can improve the utilization rate and application scope of the product.
  • the value range of the inductance of the coil winding 120 is 80 ⁇ H to 160 ⁇ H. Within this range, the power of the multiple coil windings 120 after being energized in parallel or individually can meet the requirements, which is suitable for the requirements of the electromagnetic heating device.
  • test condition of the inductance of the coil winding 120 is: 1KHZ/1V, and no metal is provided at the bottom of the coil winding 120 during the test.
  • the coil disk assembly 100 includes a first coil winding 120a and a second coil winding 120b, the first coil winding 120a has a terminal (A1) 124, a terminal (A2) 125, and the second coil winding 120b has a terminal (B1) 126 and a terminal (B2) 127, the first coil winding 120a and the second coil winding 120b can work independently; or the first coil winding 120a and the second coil winding 120b work together in parallel, at this time , the terminal (A1) 124 is connected to the terminal (B1) 126, and the terminal (A2) 125 is connected to the terminal (B2) 127.
  • multiple coil windings 120 are connected in series, so that the multiple coil windings 120 work together after being connected in series. Pot heating, large heating area and high efficiency, improve the utilization rate and application scope of the product. Further, the value range of the inductance of the coil winding 120 is 30 ⁇ H to 80 ⁇ H. Within this range, the power of the plurality of coil windings 120 after being energized in series meets the requirements, which is suitable for the requirements of the electromagnetic heating device.
  • test condition of the inductance of the coil winding 120 is: 1KHZ/1V, and no metal is provided at the bottom of the coil winding 120 during the test.
  • the coil disk assembly 100 includes a first coil winding 120a and a second coil winding 120b, the first coil winding 120a has a terminal (A1) 124 and a terminal (A2) 125, and the second coil winding 120b has a terminal (B1) 126 and a terminal (B2) 127.
  • the first coil winding 120a and the second coil winding 120b work together in series. At this time, the terminal (A2) 125 and the terminal (B1) 126 are connected.
  • Embodiment 4 proposes a coil disk assembly 100 , and further defines that the coil winding 120 includes multiple coils, the coil Any coil in the winding 120 includes two first wire segments 121 and two second wire segments 122 .
  • the extending directions are the same, the two second wire segments 122 are arranged opposite to each other, and the coil windings 120 are formed by closely coiling multiple coils.
  • the extending direction of the first wire segment 121 is the same as that of the first side, that is, the extending direction of the first wire segment 121 is the same as the extending direction of the relatively long first side in the coil winding.
  • first wire segment 121 is in an arc shape or a straight line
  • second wire segment 122 is in an arc shape or a straight line.
  • the coil is elliptical; when the first wire segment 121 is linear and/or the second wire segment 122 is linear, the first wire segment 121 and/or the second wire segment 122 of the outermost circle of the coil winding 120 can be completely It may be distributed on the edge of the bracket 130 of the coil disk 110 , thereby maximizing the use of the space of the bracket 130 of the coil disk assembly 100 , increasing the coverage area of the coil winding 120 on the bracket 130 , and increasing the heating area of the coil disk 110 .
  • the first sides of the plurality of coil windings 120 are opposite to each other, that is, the plurality of coil windings 120 are linear.
  • the first wire segments 121 are opposite to each other, so that the area of the blind area not covered by the coil windings 120 between two adjacent coil windings 120 is smaller, compared with the two coils in which the first wire segments 121 are curved in the related art
  • the combined heating blind area of the disk 110 is smaller, thereby increasing the coverage area and heating area of the coil winding 120 of the coil disk assembly 100 , reducing the heating blind area of the coil disk assembly 100 , and increasing the heating appliance (eg, pot) above the coil disk assembly 100 .
  • the coupling resistance or inductance of the position can improve the heating power, improve the heating efficiency, reduce the risk of product quality and prolong the service life of the product.
  • any coil in the coil winding 120 further includes a connection segment 123 connecting the first wire segment 121 and the second wire segment 122 , and the connection segment 123 is in the form of a
  • the arc shape can prevent the wire from having a sharp bending angle, prevent the coil winding 120 from breaking, and prolong the service life of the coil winding 120 .
  • the two arc-shaped second wire segments 122 and two linear first wire segments 121 form a coil similar to an ellipse, and multiple turns of wires with the same shape and different sizes are sequentially connected to form a coil winding 120 .
  • the two first wire segments 121 are straight and the two second wire segments 122 are straight
  • the two first wire segments 121 and the two The connection of the second wire segments 122 is an arc-shaped connection segment 123 , two linear second wire segments 122 , two linear first wire segments 121 , and the first wire segment 121 and the second wire segment 122
  • the arc-shaped connecting segments 123 between them form a coil similar to a rectangle, and multiple turns of wires with the same shape and different sizes are sequentially connected to form the coil winding 120 .
  • first wire segment 121 is straight and the second wire segment 122 is arc or straight
  • first wire segment 121 and the second wire segment 122 can also take other forms.
  • the first wire segment 121 is arc-shaped
  • the second wire segment 122 is linear
  • one of the first wire segment 121 and the second wire segment 122 is linear
  • the other is wavy
  • the first wire segment One of the 121 and the second wire segment 122 adopts a straight line
  • the other adopts a straight line but has a slightly curved structure, etc., which are also the embodiments of the present application. words are obvious.
  • the coil winding 120 is formed by winding a wire, and the multiple turns of the coil winding 120 are connected in sequence.
  • the first wire segment 121 , the second wire segment 122 and the connecting segment 123 included in any coil of the coil winding 120 are integrally formed as a whole.
  • the first wire segment 121 is linear, and the length L2 of the first wire segment 121 and/or the second wire segment 122 is linear, and the length W2 of the second wire segment 122 is less than or equal to 4/5 of the dimension W1 of the second side of the coil winding 5.
  • the first wire segment 121 is linear, and the length L2 of the first wire segment 121 is less than or equal to 4/5 of the dimension L1 of the first side of the coil winding, that is, as shown in FIGS. 10 and 10 .
  • a first straight edge region M1 is formed by multiple turns of the first wire segment 121 , and the length of the first straight edge region M1 is less than 4/5 of the overall length of the coil winding 120 .
  • the connecting segment 123 can have sufficient The setting space can ensure the distribution ratio of the straight segment and the arc segment, avoid that the first straight edge region M1 is too long and cause the arc of the connecting segment 123 to be too small, can prevent the wire from having a sharp bending angle, avoid the coil winding 120 from breaking, and extend the coil. Service life of winding 120 .
  • the second wire segment 122 is linear, and the length W2 of the second wire segment 122 is less than or equal to 4/5 of the size W1 of the second side of the coil winding, that is, a plurality of turns of the second wire
  • the length of the straight edge region M2 and the second straight edge region M2 is less than 4/5 of the overall width of the coil winding 120.
  • the connecting segment 123 can be provided with sufficient space to ensure the distribution ratio of the straight segment and the arc segment. It is avoided that the second straight edge region M2 is too long and the arc of the connecting section 123 is too small, the wire can be prevented from having a sharp bending angle, the coil winding 120 can be prevented from being broken, and the service life of the coil winding 120 can be prolonged.
  • the first wire segment 121 is linear, and the first wire segments 121 of the plurality of coil windings 120 parallel.
  • first wire segment 121 is linear, and the first wire segments 121 of the plurality of coil windings 120 are parallel, so that the arrangement of the plurality of coil windings 120 takes up less space.
  • first wire segments 121 of two adjacent coil windings 120 of the plurality of coil windings 120 are disposed opposite to each other, and the first wire segments 121 are linear.
  • the wire segments 121 are opposite to each other, so that the area of the blind area not covered by the coil windings 120 between two adjacent coil windings 120 is smaller, compared to the combination of the two coil disks 110 in which the first wire segment 121 is curved in the related art
  • the heating blind area is smaller, thereby increasing the coverage area and heating area of the coil winding 120 of the coil disk assembly 100 , reducing the heating blind area of the coil disk assembly 100 , and increasing the coupling of heating appliances (eg, cookware) above the coil disk assembly 100 . Resistance or inductance, improve heating power, improve heating efficiency, reduce product quality risks and prolong product life.
  • the second wire segments 122 are linear, and the second wire segments 122 of the plurality of coil windings 120 are parallel.
  • the second wire segments 122 are defined to be straight, and the second wire segments 122 of the plurality of coil windings 120 are parallel, so that the space occupied by the plurality of coil windings 120 after being arranged is smaller.
  • the second wire segments 122 of two adjacent coil windings 120 of the plurality of coil windings 120 are disposed opposite to each other, and the second wire segments 122 are linear, because the second wire segments 122 of the plurality of coil windings 120 are linear.
  • the wire segments 122 are opposite to each other, so that the area of the blind area not covered by the coil windings 120 between two adjacent coil windings 120 is smaller, compared to the combination of the two coil disks 110 in which the second wire segment 122 is curved in the related art
  • the heating blind area is smaller, thereby increasing the coverage area and heating area of the coil winding 120 of the coil disk assembly 100 , reducing the heating blind area of the coil disk assembly 100 , and increasing the coupling of heating appliances (eg, cookware) above the coil disk assembly 100 . Resistance or inductance, improve heating power, improve heating efficiency, reduce product quality risks and prolong product life.
  • first wire segment 121 and the second guide segment are linear, and the first wire segment 121 of the plurality of coil windings 120 or The second wire segments 122 are parallel.
  • first wire segment 121 and the second wire segment 122 are defined as straight lines, and the first wire segments 121 or the second wire segments 122 of the plurality of coil windings 120 are parallel, so that the plurality of coil windings 120 are arranged It takes up less space later.
  • an electromagnetic heating device having the coil disk assembly 100 provided in any embodiment of the first aspect. Therefore, the electromagnetic heating device provided by the embodiment of the present application has any of the first aspect. All the beneficial effects of the coil disk assembly 100 provided by the embodiments are not listed here.
  • the electromagnetic heating device further includes a housing and a panel, and the panel is connected to the housing to form an assembly cavity.
  • the panel is a glass-ceramic panel.
  • the coil disk assembly 100 is connected to the casing, and the bracket 130 and the casing can form an assembly space for placing the magnetic parts.
  • the temperature detector is installed on the coil disk assembly 100, and the end of the temperature sensor away from the coil disk 110 abuts on the panel. The temperature detector is used to detect the temperature of the pot placed on the electromagnetic heating device, so as to realize the function of accurate temperature measurement .
  • the electromagnetic heating device may include a plurality of coil disk assemblies 100 , and the arrangement of the plurality of coil disk assemblies 100 forms a larger heating area similar to a square, so that the shape of the heating area is more regular, thereby making the electromagnetic heating
  • the device can be adapted to a variety of cookware sizes.
  • the electromagnetic heating device may be an electromagnetic heating cooking device, including but not limited to an electromagnetic cooktop and an electromagnetic oven.
  • connection may be a fixed connection, a detachable connection, or an integral connection; Directly connected or indirectly connected through an intermediary.
  • connection may be a fixed connection, a detachable connection, or an integral connection; Directly connected or indirectly connected through an intermediary.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)

Abstract

L'invention concerne un ensemble disque de bobine (100) et un dispositif de chauffage électromagnétique, l'ensemble disque de bobine (100) comprenant : des supports (130); et des enroulements de bobine (120), les enroulements de bobine (120) étant prévus sur les supports (130) et étant une forme non circulaire, et la zone des enroulements de bobine (120) étant plus grande que la zone du plus grand cercle inscrit qui peut être logée à l'intérieur des supports (130). Dans l'ensemble disque de bobine (100), les enroulements de bobine (120) se présentant sous la forme non circulaire sont définis. En changeant les enroulements de bobine circulaire dans la technologie associée aux enroulements de bobine d'une forme non circulaire, et en configurant la zone des enroulements de bobine (120) plus grande que la surface du plus grand cercle inscrit qui peut être reçu dans les supports (130), c'est-à-dire lors de la fourniture des enroulements de bobine (120) dans une certaine zone, la zone des enroulements de bobine (120) est nécessairement plus grande que la zone des enroulements de bobine circulaire dans la technologie associée, ce qui permet d'améliorer le taux d'utilisation d'espace de poêles électromagnétiques carrés dans la technologie associée, et d'améliorer la plage de chauffage et l'uniformité de chauffage d'un produit.
PCT/CN2021/085644 2020-09-10 2021-04-06 Ensemble disque de bobine et dispositif de chauffage électromagnétique WO2022052458A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202010944822.0A CN114173440A (zh) 2020-09-10 2020-09-10 线圈盘组件和电磁加热装置
CN202010944822.0 2020-09-10
CN202021964139.5U CN212305699U (zh) 2020-09-10 2020-09-10 线圈盘组件和电磁加热装置
CN202021964139.5 2020-09-10

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WO2022052458A1 true WO2022052458A1 (fr) 2022-03-17

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CN202931589U (zh) * 2012-04-24 2013-05-08 美的集团股份有限公司 一种电磁感应加热线圈盘
CN203457359U (zh) * 2013-07-31 2014-02-26 美的集团股份有限公司 线圈盘及具有其的电磁炉
US20180376547A1 (en) * 2017-06-26 2018-12-27 Lg Electronics Inc. Coil assembly and induction heating device including a coil assembly
CN208479981U (zh) * 2018-05-31 2019-02-05 宁波方太厨具有限公司 一种加热线盘结构及应用有该加热线盘结构的电磁灶
CN212305699U (zh) * 2020-09-10 2021-01-05 佛山市顺德区美的电热电器制造有限公司 线圈盘组件和电磁加热装置
CN212727467U (zh) * 2020-09-10 2021-03-16 佛山市顺德区美的电热电器制造有限公司 线圈盘组件和电磁加热装置
CN212727472U (zh) * 2020-09-10 2021-03-16 佛山市顺德区美的电热电器制造有限公司 线圈盘组件和电磁加热装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202931589U (zh) * 2012-04-24 2013-05-08 美的集团股份有限公司 一种电磁感应加热线圈盘
CN203457359U (zh) * 2013-07-31 2014-02-26 美的集团股份有限公司 线圈盘及具有其的电磁炉
US20180376547A1 (en) * 2017-06-26 2018-12-27 Lg Electronics Inc. Coil assembly and induction heating device including a coil assembly
CN208479981U (zh) * 2018-05-31 2019-02-05 宁波方太厨具有限公司 一种加热线盘结构及应用有该加热线盘结构的电磁灶
CN212305699U (zh) * 2020-09-10 2021-01-05 佛山市顺德区美的电热电器制造有限公司 线圈盘组件和电磁加热装置
CN212727467U (zh) * 2020-09-10 2021-03-16 佛山市顺德区美的电热电器制造有限公司 线圈盘组件和电磁加热装置
CN212727472U (zh) * 2020-09-10 2021-03-16 佛山市顺德区美的电热电器制造有限公司 线圈盘组件和电磁加热装置

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