WO2022052458A1

WO2022052458A1 - Coil disk assembly and electromagnetic heating device

Info

Publication number: WO2022052458A1
Application number: PCT/CN2021/085644
Authority: WO
Inventors: 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: 2020-09-10
Filing date: 2021-04-06
Publication date: 2022-03-17

Abstract

A coil disk assembly (100) and an electromagnetic heating device, the coil disk assembly (100) comprising: supports (130); and coil windings (120), the coil windings (120) being provided on the supports (130) and being a non-circular shape, and the area of the coil windings (120) being larger than the area of the largest inscribed circle that may be accommodated within the supports (130). In the coil disk assembly (100), the coil windings (120) being provided as a non-circular shape is defined. By changing circular coil windings in the related technology to the coil windings of a non-circular shape, and configuring the area of the coil windings (120) as larger than the area of the largest inscribed circle that may be accommodated in the supports (130), that is, when providing the coil windings (120) within a certain area, the area of the coil windings (120) is necessarily larger than the area of the circular coil windings in the related technology, thereby improving the space utilization rate of square electromagnetic stoves in the related technology, and improving the heating range and heating uniformity of a product.

Description

Coil Disc Assembly and Electromagnetic Heating Device

This application claims the priority of the Chinese patent application with the application number 202010944822.0 and the invention name "coil disc assembly and electromagnetic heating device", which was submitted to the State Intellectual Property Office of China on September 10, 2020, and claims on September 20, 2020 The priority of the Chinese patent application with the application number 202021964139.5 and the invention title "coil disc assembly and electromagnetic heating device" filed with the State Intellectual Property Office of China on the 10th, the entire contents of which are incorporated by reference in this application.

technical field

The present application relates to the technical field of kitchen appliances, in particular, to a coil disk assembly and an electromagnetic heating device.

Background technique

At present, as shown in FIG. 1 , 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 ′. 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.

SUMMARY OF THE INVENTION

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.

In view of this, 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 In addition, 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 can be improved.

In addition, the coil disk assembly provided according to the above technical solutions of the present application also has the following additional technical features:

In one possible design, the number of coil windings is multiple.

In this design, by setting the coil disk assembly to include multiple coil windings, 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.

It is worth noting that the coil winding is a multi-turn densely wound winding structure, and the multi-turn coils are closely arranged.

It can be understood that 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. As a result, 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.

It can be understood that 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.

In a possible design, 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.

In this design, it is further defined that 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. When an electromagnetic heating device (such as an electromagnetic cooker) is used, 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.

Specifically, 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.

It is worth noting that 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. When the coil winding is elliptical, the first side of the coil winding corresponds to the extension direction of the long axis of the ellipse, and the second side of the coil winding corresponds to the extension direction of the short axis of the ellipse. When 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. When 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.

It should be noted that the number of brackets may be one or more. When 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. In the case where the number of supports is plural, 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. Specifically, 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.

In a possible design, 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.

In this design, it is further explained that 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. Wherein, 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. Further, the first wire segment is in the shape of an arc or a straight line, and the second wire segment is in the shape of an arc or a straight line. When both the first wire segment and the second wire segment are in the arc shape, any coil is oval. When the 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. In addition, in the case where the first wire segment is in a straight line, and when the plurality of coil windings are combined together, 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. 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.

In a possible design, 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.

In this design, it is further defined that 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.

In a possible design, multiple coil windings are distributed on the same horizontal plane, and the first sides of two adjacent coil windings are opposite to each other.

In this design, 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.

In a possible design, 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.

In this design, the dimensions of the coil windings are further defined. Specifically, 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. Further, 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.

In a possible design, 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.

In this design, 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. Within this range, on the one hand, 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 On the other hand, 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.

In a possible design, multiple coil windings are connected in parallel; the inductance of the coil windings ranges from 80 μH to 160 μH.

In this design, 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. Further, the value range of the inductance of the coil winding is 80 μH to 160 μH. 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.

Specifically, the 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.

In a possible design, multiple coil windings are connected in series; the inductance of the coil windings ranges from 30 μH to 80 μH.

In this design, multiple coil windings are further limited to be connected in series, so that multiple coil windings work together after being connected in series. When multiple coil windings work together, 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. Further, the value range of the inductance of the coil winding is 30 μH to 80 μH. 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.

In a possible design, 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.

In this design, it is further defined that 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. In 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. Within this range, 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. And/or, 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. Within this range, 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.

In a possible design, 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.

In this design, it is further defined that 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. For example, 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. 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. Alternatively, 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. For example, 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. Since 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. Alternatively, it is defined that 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.

In one possible design, the support is flat and the coil windings are arranged on the support.

In this design, it is further explained that 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.

In one possible design, the bracket is provided with grooves in which the coil windings are mounted.

In this design, it is further defined that 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.

Further, 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. Specifically, the protruding portion may be a boss.

It can be understood that when the bracket is provided with a groove, 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.

Further, 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. Specifically, the coil winding and the bracket can be pasted and connected by glue or the like.

According to a second aspect of the present application, an electromagnetic heating device is provided, 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.

Additional aspects and advantages in accordance with the present application will be presented in the description section that follows, in part will be apparent from the description below, or learned by practice of the application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

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.

Wherein, the corresponding relationship between the reference numerals and the component names in Fig. 1 is:

100' coil pan assembly, 200' induction heating cooktop.

Among them, the corresponding relationship between the reference numerals and the component names in Fig. 2 to Fig. 11 is:

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.

detailed description

In order to more clearly understand the above objects, features and advantages of the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other in the case of no conflict.

Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific implementation disclosed below. example limitations.

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 .

Example 1

As shown in FIG. 2 , FIG. 3 and FIG. 4 , 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. When the coil disk assembly 100 is applied to a square electromagnetic heating device (such as an electromagnetic cooker) commonly used in the related art, 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.

Embodiment 2

On the basis of the above-mentioned first embodiment, the second embodiment provides a coil disk assembly 100, wherein the number of the coil windings 120 is multiple. 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.

It should be noted that the coil winding 120 is a multi-turn densely wound winding structure, and the multi-turn coils are closely arranged.

It can be understood that 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.

It can be understood that the shapes of the plurality of coil disks 110 may be the same or different. For example, a combination of an elliptical coil disk 110 and a square coil disk 110, a combination of a rectangular coil disk 110 and a square coil disk 110 is used , a combination of a rectangular coil disk 110 and an elliptical coil disk 110, etc., to form the coil disk assembly 100.

Further, 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. (such as 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.

Specifically, when the lengths of the first side and the second side of the coil winding 120 are equal, 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.

It should be noted that 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. When the coil winding 120 is elliptical, the first side of the coil winding 120 corresponds to the extension direction of the long axis of the ellipse, and the second side of the coil winding 120 corresponds to the extension direction of the short axis of the ellipse. When 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. When 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. It should be noted that the number of the brackets 130 may be one or more. As shown in FIG. 7 , when the number of the brackets 130 is one, a plurality of coil windings 120 are jointly arranged on one bracket 130 , and one bracket 130 saves parts and also reduces the installation steps of the coil disk assembly 100 , so that the Improve production efficiency. As shown in FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , when the number of brackets 130 is multiple, the multiple brackets 130 are in one-to-one correspondence with the multiple coil windings 120 , and one coil winding 120 is arranged on one bracket 130 A coil disk 110 is formed thereon. It is worth noting that, in the case where one bracket 130 is provided with a corresponding coil winding 120, in order to make the coil winding 120 cover the surface of the bracket 130 as much as possible, 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 , and the shorter side of the bracket 130 is arranged opposite to the second side of the coil winding 120 . Specifically, 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.

Further, as shown in FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , 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. In addition, 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.

Further, as shown in FIG. 2 to FIG. 9 , 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.

Further, as shown in FIGS. 2 to 9 , 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. Specifically, the protruding portion 134 may be a boss.

It can be understood that, when the bracket 130 is provided with the groove 132, 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 .

Further, 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. Specifically, the coil winding 120 and the bracket 130 can be pasted and connected by glue or the like.

Specifically, the bracket 130 is formed by injection molding of a plastic material. For example, 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. In the process of actually manufacturing the coil winding 120 , for example, 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.

Embodiment 3

As shown in FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , on the basis of the second embodiment above, 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.

Further, as shown in FIG. 2 , 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. Further, 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.

Further, as shown in FIG. 2 , 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 . Within this range, on the one hand, 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 On the other hand, 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.

In a specific embodiment of the present application, as shown in FIG. 3 , it is further defined that 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. Further, the value range of the inductance of the coil winding 120 is 80 μH to 160 μH. 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.

Specifically, the 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.

For example, as shown in FIG. 3, 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.

In another specific embodiment of the present application, as shown in FIG. 4 , it is further defined that 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 μH to 80 μH. 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.

For example, as shown in FIG. 4, 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

As shown in FIG. 8 , FIG. 9 , FIG. 10 and FIG. 11 , on the basis of any of the above embodiments, 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. Further, the first wire segment 121 is in an arc shape or a straight line, and the second wire segment 122 is in an arc shape or a straight line. When both the first wire segment 121 and the second wire 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 . In addition, in the case where the first wire segment 121 is linear, and the plurality of coil windings 120 are combined together, 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.

Further, as shown in FIG. 8 , FIG. 9 , FIG. 10 and FIG. 11 , 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 .

For example, as shown in FIG. 5 , FIG. 8 and FIG. 10 , when the two first wire segments 121 are straight and the two second wire segments 122 are arcs, 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 .

For example, as shown in FIG. 6 , FIG. 9 and FIG. 11 , when 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 .

It can be understood that, although the description takes the example that the first wire segment 121 is straight and the second wire segment 122 is arc or straight, the first wire segment 121 and the second wire segment 122 can also take other forms. For example, 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, and the first wire segment One of the 121 and the second wire segment 122 adopts a straight line, and 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.

It can be understood that the coil winding 120 is formed by winding a wire, and the multiple turns of the coil winding 120 are connected in sequence. Wherein, 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.

As shown in FIG. 5 , FIG. 6 , FIG. 8 , FIG. 9 , FIG. 10 and FIG. 11 , in an embodiment of the present application, further, 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.

In this embodiment, it is further defined that 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 . As shown in FIG. 11 , 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 . Within this range, 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 . 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 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. Within this range, 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.

It should be noted that, as shown in FIG. 10 , in the case where the first wire segment 121 is straight and the second wire segment 122 is arc, multiple turns of the first wire segment 121 form the first straight edge region M1 , and the multiple turns of the The two wire segments 122 form the arc edge region M3.

As shown in FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 and FIG. 7 , in an embodiment of the present application, further, the first wire segment 121 is linear, and the first wire segments 121 of the plurality of coil windings 120 parallel.

In this embodiment, it is further defined that the 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. For example, the 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.

As shown in FIGS. 6 , 9 and 11 , in an embodiment of the present application, further, the second wire segments 122 are linear, and the second wire segments 122 of the plurality of coil windings 120 are parallel.

In this embodiment, 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. For example, 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.

As shown in FIG. 6 , FIG. 9 and FIG. 11 , in an embodiment of the present application, further, the 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.

In this embodiment, the 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.

According to a second aspect of the present application, there is provided 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.

In some embodiments, 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 .

It is worth noting that 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.

Specifically, the electromagnetic heating device may be an electromagnetic heating cooking device, including but not limited to an electromagnetic cooktop and an electromagnetic oven.

In the description of this specification, the terms "connected", "installed", "fixed", etc. should be understood in a broad sense, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; Directly connected or indirectly connected through an intermediary. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiment", etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in this application at least one embodiment or example of . In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

A coil disk assembly, comprising:

bracket;

The coil winding is arranged on the support, the coil winding is non-circular, and the area of the coil winding is larger than the area of the largest inscribed circle that can be accommodated in the support.
The coil disk assembly of claim 1, wherein,

The number of the coil windings is plural.
The coil disk assembly of claim 2, wherein:

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 disk assembly of claim 3, wherein the coil winding comprises a plurality of turns; any one of the coil windings comprising:

Two first wire segments, the two first wire segments are arranged opposite, the first wire segments and the first side of the coil winding extend in the same direction, and the first wire segments are arc-shaped or straight-shaped ;

Two second wire segments are arranged opposite each other, and the second wire segments are arc-shaped or straight-shaped.
The coil disk assembly of claim 4, wherein any one of the coil windings further comprises:

A connection segment connects the first wire segment and the second wire segment, and the connection segment is arc-shaped.
The coil disk assembly of claim 3, wherein,

A plurality of the coil windings are distributed on the same horizontal plane, and the first sides of two adjacent coil windings are opposite to each other.
The coil disk assembly of claim 3, wherein,

The value range of the size L1 of the first side of the coil winding is 100mm to 300mm;

The size W1 of the second side of the coil winding ranges from 25 mm to 240 mm, and 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.
The coil disk assembly of claim 7, wherein,

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 coil disk assembly of claim 3, wherein,

a plurality of the coil windings are connected in parallel;

The value range of the inductance of the coil winding is 80 μH to 160 μH.
The coil disk assembly of claim 3, wherein,

a plurality of the coil windings are connected in series;

The value range of the inductance of the coil winding is 30 μH to 80 μH.
The coil disk assembly of claim 4, wherein,

The first wire segment is straight, and the length L2 of the first wire segment is less than or equal to 4/5 of the dimension L1 of the first side of the coil winding; and/or

The second wire segment is linear, and the length W2 of the second wire segment is less than or equal to 4/5 of the dimension W1 of the second side of the coil winding.
The coil disk assembly of claim 4, wherein,

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 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 coil disk assembly of claim 1 or 2, wherein,

The support is in the shape of a flat plate, and the coil winding is arranged on the support.
The coil disk assembly of claim 13, wherein:

The bracket is provided with a groove, and the coil winding is installed in the groove.
An electromagnetic heating device, comprising:

A coil disk assembly as claimed in any one of claims 1 to 14.