CN212413461U - Coil panel and electromagnetic cooking device - Google Patents

Abstract

The utility model provides a coil panel and electromagnetic cooking device, this coil panel includes coil support (10) and coils (30) around establishing on coil support (10), coil support (10) include support body (11) and set up the disk pack (20) on support body (11), coils (30) are around establishing on support body (11); the magnetic disc set (20) comprises at least two magnetic discs, the magnetic discs are distributed along the circumferential direction of the coil (30), the at least two magnetic discs are arranged at intervals along the radial direction of the coil disc (100), and the disc surfaces of the at least two magnetic discs correspond to different parts of the bottom surface of the coil (30). The utility model discloses can simplify the structure of coil panel, reduce the assembly degree of difficulty of coil panel to improve its assembly efficiency, can improve the magnetic conduction effect of coil on the coil panel simultaneously, optimize the heating effect of coil panel.

Description

Coil panel and electromagnetic cooking device

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to a coil panel and electromagnetic cooking device.

Background

The induction cooker as a common electromagnetic cooking appliance has the advantages of rapid heating, no open fire, safety, convenience and the like, and is favored and approved by more and more consumers.

The induction cooker generally includes a bottom case, a coil panel and a panel, the bottom case and the panel enclose an accommodating cavity, and the coil panel is disposed in the accommodating cavity. The coil panel comprises a coil panel support and a coil, the coil is arranged on the coil panel support, the coil is formed by winding an enameled wire, an exposed wire is formed after the end part of the enameled wire is subjected to paint removal treatment and is electrically connected with a circuit board in the accommodating cavity through a connecting terminal, the circuit board supplies power to the coil, so that an alternating magnetic field is generated around the coil panel, and the alternating magnetic field is used for heating a cooker on the electromagnetic oven panel. In present coil panel, generally can set up a plurality of magnetic stripes on the coil panel support, a plurality of magnetic stripes are radial distribution, and the magnetic stripe chooses for use magnetic material to make through sintering molding's mode, at coil panel during operation, gathers together the magnetic field that the coil produced and guides its one side that is close to the pan of acting on the coil panel for magnetic field acts on the pan, thereby realizes the heating to the pan.

However, the existing magnetic strip has a complex structure and high assembly difficulty, and the magnetic conduction effect of the magnetic strip is poor, so that the heating effect of the coil panel is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one problem mentioned in the background art, the utility model provides a coil panel and electromagnetic cooking device can simplify the structure of coil panel, reduces the assembly degree of difficulty of coil panel to improve its assembly efficiency, can improve the magnetic conduction effect of coil on the coil panel simultaneously, optimize the heating effect of coil panel.

In order to achieve the above object, in a first aspect, the present invention provides a coil disc, including a coil support and a coil wound on the coil support, the coil support includes a support body and a disc group arranged on the support body, and the coil is wound on the support body.

The magnetic disc set comprises at least two magnetic discs, the magnetic discs are distributed along the circumferential direction of the coil, the at least two magnetic discs are arranged at intervals along the radial direction of the coil disc, and the at least two magnetic discs respectively correspond to different parts of the bottom surface of the coil.

The utility model provides a coil panel through setting up coil bracket and around establishing the coil on coil bracket, utilizes coil bracket support coil to the route is established in the winding of injecing the coil, thereby has improved the stability that the coil set up, has increased the stability in the magnetic field that the coil produced under the on-state. By configuring the coil holder as a holder body and a disk group provided on the holder body, and by winding the coil on the holder body, a guiding effect is formed by the disk group on a magnetic field generated by the coil. Compare the magnetic stripe structure among the prior art, the utility model discloses a magnetic disc group structure is more simple, and consequently its assembly degree of difficulty is lower, has improved the assembly efficiency of coil panel. And the magnetic disks are distributed along the circumferential direction of the coil, and the disk surfaces of at least two magnetic disks respectively correspond to different parts of the bottom surface of the coil, so that the magnetic conduction effect of the magnetic disk set is better, and the heating effect of the coil disk is optimized.

In the coil disk, optionally, the disk group at least includes a first disk and a second disk, the first disk and the second disk are sleeved in a radial direction of the coil disk, and a first middle area is provided between the first disk and the second disk.

The first magnetic disk and the second magnetic disk respectively correspond to different parts of the bottom surface of the coil from the center position of the coil disk to the edge position of the coil disk.

The structure of the disk group can be adjusted by the arrangement, so that the requirements of users on different magnetic conduction effects of the coil group are met, and the flexibility of the disk group structure is improved.

In the above coil panel, optionally, the coil at least includes an inner ring coil and an outer ring coil that are sleeved with each other from the center position of the coil panel to the edge position of the coil panel, a second middle region is provided between the inner ring coil and the outer ring coil, and the second middle region is vacant;

the first magnetic disc corresponds to at least part of the bottom surface of the inner ring coil, the second magnetic disc corresponds to at least part of the bottom surface of the outer ring coil, and the first middle area and the second middle area are oppositely arranged.

The arrangement can improve the heating uniformity of the coil panel, and the position of the disk group corresponds to that of the coil, so that the magnetic conduction effect of the disk group on the magnetic field generated by the coil can be optimized.

In the above coil disk, optionally, the disk group has a first center region which is vacant near the center position of the coil disk, and the coil has a second center region which is vacant near the center position of the coil disk, and the first center region is disposed opposite to the second center region.

The first central area and/or the second central area is provided with a temperature measuring element.

The arrangement can reduce the magnetic field intensity at the central position of the coil panel, thereby weakening the heating effect at the central position and improving the overall heating uniformity of the coil panel.

In the coil disk, optionally, the bracket body includes a plurality of annular partition plates, the plurality of partition plates are arranged at intervals along the radial direction of the coil disk, a coil slot is formed between adjacent partition plates, and the coil is wound in the coil slot; the magnetic disc group and the coil are respectively positioned on two opposite sides of the coil groove on the bracket body.

The arrangement can improve the stability of the coil and the magnetic disc set on the bracket body and increase the stability of the coil disc structure.

In the coil disk described above, optionally, the support body includes at least one fixing portion for fixing the disk group, and the fixing portion is located at an edge position of the support body near the coil disk and/or a center position of the coil disk; the fixing part is fixed on the disk surface of the disk group on the side far away from the coil.

The bracket body is provided with at least one extending edge at one side far away from the coil disc, the extending edge is abutted against the disc surface of the disc group at one side far away from the coil, and the extending edge forms a fixing part.

The structure of the fixing part for fixing the disk group can be simplified by the arrangement, so that the assembly difficulty of the disk group on the bracket body is reduced, and the assembly efficiency of the coil disk is improved.

In the coil disk described above, optionally, the fixing portion is located at an edge position on the bracket body near the coil disk, the extending edge includes a first extending edge provided at the edge position on the bracket body near the coil disk, and the first extending edge abuts against a side of the disk pack near the edge position of the coil disk.

The fixing part is positioned on the bracket body and close to the central position of the coil panel, the extending edge comprises a second extending edge arranged on the bracket body and close to the central position of the coil panel, and the second extending edge abuts against one side of the coil panel close to the central position of the coil panel.

And/or the extension edge is of an annular structure, or the extension edge is of an arc-segment-shaped structure, and the arc-segment-shaped extension edges are arranged at intervals along the circumferential direction of the coil disc.

The arrangement can effectively limit the arrangement position of the disk group on the bracket body through the first extending edge and/or the second extending edge, so that the arrangement stability of the disk group on the bracket body is improved.

In the above coil disk, the fixing portion is optionally connected to the disk stack by a connector, and/or the fixing portion is in contact with the disk stack by thermal compression.

In the coil disk, optionally, a first flange is disposed at a position of the bracket body near the edge of the coil disk, and the first flange abuts against a side edge of the disk group near the edge of the coil disk.

And/or a second flanging is arranged at the position, close to the center of the coil disc, of the bracket body, and the second flanging abuts against the side edge, close to the center of the coil disc, of the magnetic disc set.

The arrangement can effectively limit the arrangement position of the disk group on the bracket body by utilizing the first flanging and/or the second flanging, so that the arrangement stability of the disk group on the bracket body is improved.

And/or the thickness of the disk pack is in the range of 1-5 cm.

In the coil disk, the inner coil and the outer coil are connected in parallel, or the inner coil and the outer coil are connected in series. The arrangement can improve the flexibility of the coil structure and optimize the heating effect of the coil panel.

In a second aspect, the present invention provides an electromagnetic cooking apparatus, including a coil panel, the coil panel is located in the electromagnetic cooking apparatus.

The utility model provides an electromagnetic cooking device through setting up coil carrier and around establishing the coil on coil carrier, utilizes coil carrier support coil to what inject the coil establishes the route, thereby improved the stability of coil setting, increased the stability in the magnetic field that the coil produced under the on state. By configuring the coil holder as a holder body and a disk group provided on the holder body, and by winding the coil on the holder body, a guiding effect is formed by the disk group on a magnetic field generated by the coil. Compare the magnetic stripe structure among the prior art, the utility model discloses a magnetic disc group structure is more simple, and consequently its assembly degree of difficulty is lower, has improved the assembly efficiency of coil panel. And the magnetic discs are distributed along the circumferential direction of the coil, and the disc surfaces of at least two magnetic discs respectively correspond to different parts of the bottom surface of the coil, so that the magnetic conduction effect of the magnetic disc set is better, and the heating effect of the coil disc and the electromagnetic cooking device with the coil disc is optimized.

The structure of the present invention and other objects and advantages thereof will be more clearly understood from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a coil panel according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of a coil panel according to an embodiment of the present invention, with a sleeve, a heat shrink tube, and a connection terminal removed;

fig. 3 is a schematic structural diagram of a disk pack side of a coil disk according to an embodiment of the present invention;

fig. 4 is a top view of a disk group side of a coil disk according to an embodiment of the present invention;

fig. 5 is a top view of a coil side of a coil panel according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a cross section a-a in fig. 5 according to an embodiment of the present invention;

fig. 7 is a schematic partial structural view of a portion I in fig. 6 according to a first embodiment of the present invention;

fig. 8 is a schematic partial structural view of a part II in fig. 6 according to a first embodiment of the present invention;

fig. 9 is a schematic cross-sectional view of a coil panel according to an embodiment of the present invention before a fixing portion is formed;

fig. 10 is a schematic structural diagram of a disk stack of a coil disk according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a disk pack side of a coil disk with another structure according to an embodiment of the present invention.

Description of reference numerals:

100-a coil disk; 10-a coil support;

11-a stent body; 111-a first flange;

112-a second flange; 20-a disk pack;

21-a first disk; 22-a second disk;

23-a first intermediate zone; 24-a first central region;

30-a coil; 31-inner loop coil;

32-outer loop coil; 33-a second intermediate zone;

34-a second central region; 40-a separator;

50-a fixed part; 51-a first extension rim;

52-a second extension rim; 60-lead wires;

61-inner loop incoming line; 62-inner ring outgoing line;

63-outer ring inlet wire; 64-outer ring outgoing line;

70-a sleeve; 80-heat shrink tube;

90-terminal.

Detailed Description

In the present electromagnetic oven, the coil panel is generally placed in the accommodating cavity enclosed by the panel and the bottom shell, and the coil panel includes a coil support and a coil coiled on the coil support. The coil is formed by winding an enameled wire, an exposed wire is formed after the end part of the enameled wire is subjected to paint removal treatment and is electrically connected with the circuit board in the accommodating cavity through the connecting terminal, the circuit board supplies power to the coil, so that an alternating magnetic field is generated around the coil disc, and the alternating magnetic field is used for heating a pot on the panel of the electromagnetic cooking device. In present coil panel, generally can set up a plurality of magnetic stripes on the coil panel support, a plurality of magnetic stripes are radial distribution, and the magnetic stripe chooses for use magnetic material to make through sintering molding's mode. When the coil disc works, the magnetic field generated by the coil is gathered and guided to act on one side, close to the cooker, of the coil disc, so that the magnetic field acts on the cooker, and the cooker is heated. However, the conventional magnetic strips are relatively complex in structure and large in number. In the assembling process of the coil panel, an independent magnetic strip mounting groove needs to be arranged on the coil panel support, and a plurality of magnetic strips are installed in different magnetic strip mounting grooves in a one-to-one correspondence mode, so that the operation difficulty in the assembling process is high, the assembling process is complex, and the assembling efficiency of the coil panel is greatly reduced. Furthermore, the magnetic conduction area of the magnetic strip is small, so that the magnetic conduction effect is poor, the gathering and guiding effects of the magnetic field generated by the coil are not ideal, and the heating effect of the coil panel is affected.

Based on foretell technical problem, the utility model provides a coil panel and electromagnetism cooking device through setting up coil bracket and around establishing the coil on coil bracket, utilizes coil bracket support coil to inject the winding of coil and establish the route, thereby improved the stability of coil setting, increased the stability in the magnetic field that the coil produced under the on state. By configuring the coil holder as a holder body and a disk group provided on the holder body, and by winding the coil on the holder body, a guiding effect is formed by the disk group on a magnetic field generated by the coil. Compare the magnetic stripe structure among the prior art, the utility model discloses a magnetic disc group structure is more simple, and consequently its assembly degree of difficulty is lower, has improved the assembly efficiency of coil panel. And the magnetic discs are distributed along the circumferential direction of the coil, and the disc surfaces of at least two magnetic discs respectively correspond to different parts of the bottom surface of the coil, so that the magnetic conduction effect of the magnetic disc set is better, and the heating effect of the coil disc and the electromagnetic cooking device with the coil disc is optimized.

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example one

Fig. 1 is a schematic structural diagram of a coil panel according to an embodiment of the present invention. Fig. 2 is a schematic structural diagram of a coil panel according to an embodiment of the present invention, in which the sleeve, the heat shrink tube, and the connection terminal are removed. Fig. 3 is a schematic structural diagram of a disk pack side of a coil disk according to an embodiment of the present invention. Fig. 4 is a top view of a disk group side of a coil disk according to an embodiment of the present invention. Fig. 5 is a top view of a coil side of a coil panel according to an embodiment of the present invention. Fig. 6 is a schematic structural view of a cross section a-a in fig. 5 according to a first embodiment of the present invention. Fig. 7 is a schematic partial structure diagram of a portion I in fig. 6 according to a first embodiment of the present invention. Fig. 8 is a schematic partial structure diagram of a part II in fig. 6 according to a first embodiment of the present invention. Fig. 9 is a schematic cross-sectional view of a coil panel according to an embodiment of the present invention before a fixing portion is formed. Fig. 10 is a schematic structural diagram of a disk pack of a coil disk according to an embodiment of the present invention. Fig. 11 is a schematic structural diagram of a disk pack side of a coil disk with another structure according to an embodiment of the present invention.

Referring to fig. 1 to 11, a coil panel 100 according to an embodiment of the present invention includes a coil support 10 and a coil 30 wound on the coil support 10, the coil support 10 includes a support body 11 and a disk group 20 disposed on the support body 11, and the coil 30 is wound on the support body 11. The disk pack 20 includes at least two disks distributed along the circumferential direction of the coil 30, the at least two disks are spaced along the radial direction of the coil disk 100, and the disk surfaces of the disks correspond to different portions of the bottom surface of the coil 30.

It should be noted that the coil panel 100 provided in this embodiment may include a coil support 10 made of a magnetic conductive material and a wound coil 30, where the coil support 10 may have a circular structure as shown in fig. 1 and fig. 2, or may be adjusted to have an oval or square structure according to the limitation of the installation space inside the electromagnetic cooking apparatus, and this embodiment is not limited thereto.

The coil support 10 may be made at least partially or entirely of magnetically conductive material to form the magnetic portion of the coil support 10. In this embodiment, the coil support 10 includes a support body 11 and a disk assembly 20 disposed on the support body 11, the disk assembly 20 forms a magnetic portion of the coil support 10, and based on the coil 30 wound on the disk assembly 20, the disk assembly 20 can form a gathering and guiding effect on a magnetic induction line of a magnetic field generated by the coil 30, so that the magnetic induction line acts on a cookware above the coil 100, thereby heating the cookware. This support body 11 can select for use the plastic material to make, and on one hand the plastic material is in the forming process, and the structure and the shape controllability of mould are higher, consequently can adapt to the demand of 11 different structures of support body, and on the other hand, the support body 11 of plastic material has good insulating properties, can effectively avoid producing the influence to the coil in the coil 30. The disk pack 20 may include at least one disk having a disk surface, which may be distributed along the circumferential direction of the coil 30.

Compare the magnetic stripe structure among the prior art, the magnetic stripe generally is radial distribution, has the clearance between the adjacent magnetic stripe, therefore the effective magnetic conduction area of the magnetism portion that the magnetic stripe formed mainly concentrates on the region that the magnetic stripe corresponds, and the clearance between the adjacent magnetic stripe then does not have the magnetic conduction effect to magnetic field, and consequently the magnetic conduction area of the magnetism portion that the magnetic stripe formed is less, leads to its magnetic conduction effect relatively poor. To this, the quotation of the disk in this embodiment distributes along the circumference of coil 30, can all correspond in the circumference of whole coil 30 to realize the magnetic conduction in the circumference of whole coil 30, improved the magnetic conduction area of magnetism portion, thereby the reinforcing is to the magnetic conduction effect of coil 30, more is favorable to gathering together and the magnetic field that guide coil 30 produced acts on the cooking pot, optimizes the heating effect to the cooking pot.

Further, the disk surface of the magnetic disk corresponds to different portions of the bottom surface of the coil 30, the different portions of the bottom surface may be different portions of the bottom surface of the coil 30 along the radial direction of the entire coil disk 100, and the disk surface completely corresponds to the bottom surface of the coil 30 in the circumferential direction of the entire coil disk 100. For example, in the radial direction from the center position to the edge position of the coil disc 100, the user needs a certain radial area with a high magnetic field intensity, and the disc surfaces of the disc assembly 20 can be mainly and intensively distributed in the radial area, so as to guide and converge the magnetic field of the whole ring coil 30 in the radial area.

The bottom surface of the coil 30 corresponding to the magnetic disk may be opposite to the bottom surface of the coil 30, and the bracket body 11 is arranged between the magnetic disk and the coil 30, but not completely attached to the magnetic disk.

Specifically, referring to fig. 3 to 5, the disk group 20 has a first center region 24 vacant near the center of the coil disk 100, and the coil 30 has a second center region 34 vacant near the center of the coil disk 100, the first center region 24 being disposed opposite to the second center region 34.

It should be noted that the magnetic field generated by the coil panel 100 may converge near the center of the coil panel 100, which may result in an excessively high magnetic field strength near the center of the coil panel 100. When using coil panel 100 to heat the cooking pot, the temperature that the cooking pot is close to central point department then corresponding too high, takes place the problem of sticking with paste the pot here easily. In this regard, in the present embodiment, the first central region 24 is disposed in the disk group 20 near the center of the coil disk 100, the second central region 34 is disposed in the coil 30 near the center of the coil disk 100, and the first central region 24 and the second central region 34 are opposite to each other. The second central region 34 is free, i.e. no coil is wound around the second central region 34, so that no magnetic field is generated here when the coil 30 is in operation. Further, the first central region 24 is left empty, i.e., the first central region 24 is not provided with a magnetic disk, and therefore is not guided into the magnetic induction lines when the coil disk 100 is in operation. Therefore, the magnetic field intensity at the central position of the coil panel 100 is effectively reduced through the two modes, the uniformity of the magnetic field distribution is improved, the heating effect of the coil panel 100 is optimized, and the problem of heat concentration at the central position of the coil panel 100 is avoided.

Further, the first central area 24 and the second central area 34 are empty, and a detection device, such as a temperature measuring element, may be disposed at this position, so as to monitor the heating temperature of the cooker or the working temperature in the coil panel 100 in real time, so that the electromagnetic cooking device can adjust the heating state of the coil panel 100 according to the detection result of the temperature detection device, and thus, the precise temperature control of the electromagnetic cooking device is achieved. Of course, in practical use, the type of the detecting device may be determined according to the user's selection, and the embodiment is not limited to this, and is not limited to the above example.

Referring to fig. 6 and 8, the bracket body 11 includes a plurality of annular spacers 40, the plurality of spacers 40 are spaced apart from each other in a radial direction of the coil disk 100, a coil groove is formed between adjacent spacers 40, and the coil 30 is wound in the coil groove; the disc pack 20 and the coil 30 are respectively located on opposite sides of the coil slot on the holder body 11.

It should be noted that the partition 40 of the present embodiment may be a complete circular ring structure, or may be an arc segment of multiple circular rings. The plurality of spacers 40 are spaced apart from each other in the radial direction of the coil disk 100, so that coil slots for disposing the coils are formed between adjacent spacers 40, and the slot widths of adjacent coil slots may be set to be equal and may be set to be different according to needs, which is not limited in this embodiment. A plurality of layers of coils can be wound in each coil groove, and the coils can be arranged in an up-and-down stacking mode. The coil slot can effectively limit the position of the coil on the coil panel 100, and the displacement of the coil on the coil panel 100 is limited by the partition plate 40, thereby improving the stability of the coil arrangement.

The disk pack 20 and the coil 30 are respectively located on two opposite sides of the coil slot on the bracket body 11, and when the disk pack 20 is installed, one side close to the coil 30 can abut against the coil slot of the bracket body 11, so that the specific arrangement position of the disk pack 20 on the bracket body 11 is limited by the coil slot, and the difficulty of arrangement of the disk pack 20 on the bracket body 11 is reduced.

Further, as shown in fig. 6 to 9, on the basis that the coil slot fixes the disk group 20, the bracket body 11 may further include at least one fixing portion 50 for fixing the disk group 20, where the fixing portion 50 is located at an edge position of the bracket body 11 near the coil disk 100 and/or at a center position of the coil disk 100; the fixing portion 50 is fixed on the disk surface of the disk group 20 on the side away from the coil 30.

The holder body 11 is provided with at least one extending edge on a side away from the coil disk 100, the extending edge abuts on a disk surface of the disk group 20 on a side away from the coil 30, and the extending edge forms a fixing portion 50.

It should be noted that the disk surface of the disk assembly 20 close to the coil slot may abut against the coil slot for fixing, and the disk surface of the disk assembly 20 far from the coil slot may be fixed by the fixing portion 50, so as to fix the disk assembly 20 from two opposite disk surfaces of the disk assembly 20, respectively, thereby improving the stability of the disk assembly 20. The fixing portion 50 may be formed by an extending edge of the bracket body 11, and the bracket body 11 may be made of a plastic material, so that the fixing portion 50 and the fixing to the disk pack 20 may be simultaneously formed during the installation of the disk pack 20. Referring to fig. 9, when the disk assembly 20 is installed, the disk assembly 20 may be first placed in the holder body 11, the edge of the disk assembly 20 is positioned by the holder body 11, the disk surface of the disk assembly 20 close to the coil slot abuts against the coil slot, and the extending edge of the holder body 11 may protrude out of the disk surface of the disk assembly 20. Then, the part of the extending edge extending out of the disk surface of the disk group 20 is deformed by hot pressing to form the structure shown in fig. 6 to 8, and the extending edge is reversely buckled on the disk surface of the disk group 20, so that the disk surface on the side far away from the coil slot is fixed.

As an achievable embodiment, the fixing portion 50 is located on the bracket body 11 near the edge position of the coil disk 100, the extending rim includes a first extending rim 51 disposed on the bracket body 11 near the edge position of the coil disk 100, and the first extending rim 51 abuts on the side of the disk group 20 near the edge position of the coil disk 100. The first extending rim 51 is used to fix the disk assembly 20 from the inner edge of the disk assembly on the side close to the center position of the coil disk 100.

The fixing portion 50 is located on the bracket body 11 near the center of the coil disk 100, the extending rim includes a second extending rim 52 provided on the bracket body 11 near the center of the coil disk 100, and the second extending rim 52 abuts on a side of the disk pack 20 near the center of the coil disk 100. The second extending edge 52 is used to fix the disk group 20 from the outer edge of the disk group 20 on the side close to the edge position of the coil disk 100.

As an achievable embodiment, the extending edge may be a ring-shaped structure, and the ring-shaped extending edge may fix each position of the edge of the disk assembly 20 along the circumferential direction, so as to improve the firmness of the arrangement of the disk assembly 20. Of course, the extension edge may also be a segment-shaped structure, and the segment-shaped extension edges are spaced along the circumferential direction of the coil disk 100. Therefore, the difficulty in arranging the extension edges can be reduced, the interval between the adjacent arc-shaped extension edges can be set according to the requirement, and the embodiment does not limit the interval.

Referring to fig. 7 and 8, the bracket body 11 may be provided with a first flange 111 at a position near the edge of the coil disk 100, and the first flange 111 abuts against a side edge of the disk pack 20 at the position near the edge of the coil disk 100.

Of course, the bracket body 11 may also be provided with a second flange 112 near the central position of the coil disc 100, and the second flange 112 abuts against the side edge of the disc group 20 near the central position of the coil disc 100. By arranging the first flange 111 and/or the second flange 112 on the bracket body 11, the arrangement position of the disk pack 20 on the bracket body 11 can be effectively limited, and the disk pack 20 is prevented from shifting, so that the arrangement stability and the position accuracy of the disk pack 20 on the bracket body 11 are improved.

The fixing portion 50 may also be connected to the disk stack 20 through a connector, which may include, but is not limited to, a screw and a pin.

As an achievable embodiment, the thickness of the disk pack 20 is in the range of 1-5 cm. When the thickness of the disk stack 20 is too large, the thickness of the entire coil disk 100 is too large, which is not advantageous for manufacturing the coil disk 100 with a small volume. When the thickness of the disk assembly 20 is too small, the magnetic conducting effect of the disk assembly 20 on the magnetic field of the coil 30 is poor, which affects the heating effect of the coil disk 100. In practical use, the user can select a specific value of the thickness of the disk assembly 20 within the above range according to the requirement, which is not limited by the embodiment.

Referring to fig. 11, as a possible implementation manner of the present embodiment, the disk group 20 may include a disk, the disk surface of which extends from the center position of the coil disk 100 to the edge position of the coil disk 100 and corresponds to the entire bottom surface of the coil 30.

It should be noted that, when the disk surface of the magnetic disk corresponds to the entire bottom surface of the coil 30, the magnetic conductive area of the coil 30 can be effectively increased, so as to improve the magnetic conductive effect of the disk pack 20 on the coil panel 100, and further improve the heating effect of the coil panel 100.

Specifically, the disk stack 20 includes at least two disks, and the at least two disks respectively correspond to different portions of the bottom surface of the coil 30. It should be noted that at least two magnetic disks of the magnetic disk assembly 20 can be disposed at the bottom of different portions of the coil 30 as required, so as to guide and focus the magnetic field in different radial regions of the coil 30. Therefore, the coil panel 100 can emphasize the heating effect of the coil panel 100 in a certain radial region according to the needs of a user, which not only improves the flexibility of the structure of the disk assembly 20, but also optimizes the magnetic conduction effect of the magnetic field generated by the coil 30 and the heating effect of the coil panel 100.

Referring to fig. 3 and 4, as a possible implementation manner in this embodiment, the disk assembly 20 includes at least a first disk 21 and a second disk 22, the first disk 21 and the second disk 22 are sleeved with each other from a central position of the coil plate 100 to an edge position of the coil plate 100, and a first middle area 23 is provided between the first disk 21 and the second disk 22. The first magnetic disk 21 and the second magnetic disk 22 correspond to different portions of the bottom surface of the coil 30 from the center position of the coil disk 100 to the edge position of the coil disk 100, respectively. It should be noted that the number of disks in the disk group 20 is not limited to two, but may be three, four or more. At least two magnetic disks are sleeved with each other from the center position to the edge position on the coil disk 100.

Referring to fig. 5 and 6, the coil 30 at least includes an inner coil 31 and an outer coil 32 that are sleeved with each other from the center of the coil panel 100 to the edge of the coil panel 100, a second middle area 33 is provided between the inner coil 31 and the outer coil 32, and the second middle area 33 is left empty.

It should be noted that, in the conventional coil 30, the coil is tightly wound from the center of the coil panel 100 to the edge of the coil panel 100, and during the operation of the coil 30, the magnetic fields near the middle point of the radius of the coil panel 100 are overlapped, so that the magnetic field intensity at this position is too high, and the uniformity of the magnetic field distribution on the coil panel 100 is reduced. Such a phenomenon causes the temperature of the heated cooker to be low near the center and the edge of the coil plate 100, resulting in a low temperature heating zone, and thus the food therein often suffers from the problem of undercooking. However, the temperature near the middle point of the radius of the coil disk 100 is high, and a heating high-temperature area is generated, so that the problem that the food therein is often burnt is caused. To solve this problem, in the present embodiment, the coil 30 is provided in the inner ring coil 31 and the outer ring coil 32 which are fitted to each other, and the second intermediate region 33 is provided therebetween, and the second intermediate region 33 is left empty without being wound with a coil. After the magnetic fields generated by the inner coil 31 and the outer coil 32 are superposed at the second middle area 33, the magnetic field strength of the second middle area 33 is approximately equal to that of the center position and the edge position of the coil panel 100, so that a heating low-temperature area and a heating high-temperature area do not exist in the heated cooking pot, the heating uniformity of the whole coil panel 100 is improved, the problem of food entrapment or pot pasting is avoided, and the heating effect of the electromagnetic cooking device with the coil panel 100 is improved. Further, the coil 30 is not disposed in the second middle area 33, so that the number of turns of the coil 30 can be effectively reduced, and the manufacturing cost of the coil panel 100 can be reduced.

Wherein, the radius of the second central region 34 may be a portion shown by L1 in fig. 6, the width of the inner loop coil 31 may be a portion shown by L2 in the figure, the width of the second middle region 33 may be a portion shown by L3, and the width of the outer loop coil 32 may be a portion shown by L4. The radius of the coil disc 100 may be the portion shown at L0. As an achievable embodiment, the ratio of L1 to L0 may range from 14% to 34%, the ratio of L2 to L0 may range from 32% to 52%, the ratio of L3 to L0 may range from 5% to 25%, and the ratio of L4 to L0 may range from 9% to 29%.

Further, the disk assembly 20 is a structure adapted to the coil 30, in the structure of the disk assembly 20, the first disk 21 corresponds to at least a part of the bottom surface of the inner ring coil 31, the second disk 22 corresponds to at least a part of the bottom surface of the outer ring coil 32, and the first middle area 23 and the second middle area 33 are oppositely disposed. In this way, the magnetic field of the inner ring coil 31 is guided and converged by the first magnetic disk 21, and the magnetic field of the outer ring coil 32 is guided and converged by the second magnetic disk 22, thereby optimizing the magnetic permeability effect on the magnetic field of the coil panel 100.

As an implementation manner, the inner coil 31 and the outer coil 32 may be connected in parallel or in series, or may be separately connected to the power supply device, and the connection manner of the two is not limited in this embodiment. Taking the two parallel as an example, referring to fig. 2, the coil 30 may be electrically connected to an external power supply device through a lead 60, where the lead 60 may include an inner loop incoming line 61 and an inner loop outgoing line 62 of the inner loop coil 31, and an outer loop incoming line 63 and an outer loop outgoing line 64 of the outer loop coil 32. The inner ring incoming line 61 and the outer ring incoming line 63 can be combined to form an incoming line, the two incoming lines are connected to the power supply device through the wiring terminal 90 at the end portion after being electrically connected, the inner ring outgoing line 62 and the outer ring outgoing line 64 can be combined to form an outgoing line, and the two incoming lines are connected to the power supply device through the wiring terminal 90 at the end portion after being electrically connected.

In order to improve the stability of the lead 60 in use, an electrically insulating sleeve 70 may be disposed outside at least a portion of the lead 60 to prevent the lead 60 from rubbing against external structural members, so as to prevent short circuit caused by the exposed inner wires after the lead 60 is worn, and optimize the protection effect of the lead 60. The specific location of the sleeve 70 can be set according to the requirement, which is not limited in this embodiment. Meanwhile, the heat shrinkable tube 80 may be sleeved at the electrical connection between the inner ring incoming line 61 and the outer ring incoming line 63, and/or the electrical connection between the inner ring outgoing line 62 and the outer ring outgoing line 64, so as to ensure the stability of the electrical connection position in the lead 60.

Example two

On the basis of the first embodiment, the second embodiment of the present invention provides an electromagnetic cooking device, including the coil panel 100 of the first embodiment, the coil panel 100 is located in the electromagnetic cooking device.

It should be noted that the electromagnetic cooking device provided in this embodiment may include, but is not limited to, an induction cooker, an electromagnetic hot water kettle, and an electromagnetic rice cooker.

Other technical features are the same as those of the first embodiment, and the same or corresponding technical effects can be obtained, which are not described herein again.

In the description of the present invention, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, an indirect connection through an intermediary, a connection between two elements, or an interactive relationship between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. The terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically stated otherwise.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (11)

1. The coil panel is characterized by comprising a coil support (10) and a coil (30) wound on the coil support (10), wherein the coil support (10) comprises a support body (11) and a coil panel group (20) arranged on the support body (11), and the coil (30) is wound on the support body (11);

the magnetic disc set (20) comprises at least two magnetic discs, the magnetic discs are distributed along the circumferential direction of the coil (30), the at least two magnetic discs are arranged along the radial direction of the coil disc (100) at intervals, and the at least two magnetic discs respectively correspond to different parts of the bottom surface of the coil (30).

2. Coil disc according to claim 1, wherein the disc pack (20) comprises at least a first disc (21) and a second disc (22), the first disc (21) and the second disc (22) being nested radially inside and outside the coil disc (100), the first disc (21) and the second disc (22) having a first intermediate area (23) therebetween;

the first magnetic disk (21) and the second magnetic disk (22) correspond to different positions of the bottom surface of the coil (30) from the center position of the coil panel (100) to the edge position of the coil panel (100).

3. Coil disc according to claim 2, characterized in that the coil (30) comprises at least an inner coil (31) and an outer coil (32) which are nested with each other from the center position of the coil disc (100) to the edge position of the coil disc (100), and a second middle area (33) is provided between the inner coil (31) and the outer coil (32), and the second middle area (33) is empty;

the first magnetic disk (21) corresponds to at least part of the bottom surface of the inner ring coil (31), the second magnetic disk (22) corresponds to at least part of the bottom surface of the outer ring coil (32), and the first middle area (23) and the second middle area (33) are oppositely arranged.

4. Coil disc according to one of claims 1 to 3, characterized in that the disc stack (20) has an empty first central region (24) near a central position of the coil disc (100), the coil (30) has an empty second central region (34) near a central position of the coil disc (100), the first central region (24) being arranged opposite the second central region (34);

a temperature measuring element is arranged at the first central area (24) and/or the second central area (34).

5. Coil disk according to any one of claims 1 to 3, characterized in that the support body (11) comprises a plurality of spacers (40), the plurality of spacers (40) being arranged at intervals in the radial direction of the coil disk (100), adjacent spacers (40) forming the coil slots therebetween, the coils (30) being wound in the coil slots; the magnetic disc group (20) and the coil (30) are respectively positioned on two opposite sides of the coil groove on the bracket body (11).

6. Coil disk according to one of claims 1 to 3, characterized in that the carrier body (11) comprises at least one fixing portion (50) for fixing the disk stack (20), the fixing portion (50) being located at an edge position of the carrier body (11) close to the coil disk (100) and/or at a central position of the coil disk (100); the fixing part (50) is fixed on the disc surface of the disc group (20) on the side far away from the coil (30);

the bracket body (11) is provided with at least one extending edge at one side far away from the coil disc (100), the extending edge abuts against the disc surface of the disc group (20) at one side far away from the coil (30), and the extending edge forms the fixing part (50).

7. Coil disc according to claim 6, wherein the fixing portion (50) is located on the holder body (11) near an edge position of the coil disc (100), the extending rim comprises a first extending rim (51) provided on the holder body (11) near the edge position of the coil disc (100), the first extending rim (51) abuts on a side of the disc group (20) near the edge position of the coil disc (100);

the fixing part (50) is located on the bracket body (11) near the center of the coil disc (100), the extending edge comprises a second extending edge (52) arranged on the bracket body (11) near the center of the coil disc (100), and the second extending edge (52) abuts on one side of the magnetic disc group (20) near the center of the coil disc (100);

and/or the extending edge is of an annular structure, or the extending edge is of an arc-segment-shaped structure, and the arc-segment-shaped extending edges are arranged at intervals along the circumferential direction of the coil panel (100).

8. Coil disk according to claim 6, characterized in that the fixing part (50) is connected to the disk stack (20) by means of a connection and/or in that the fixing part (50) is pressed against the disk stack (20) by means of heat pressing.

9. Coil disc according to any of claims 1 to 3, characterized in that the holder body (11) is provided with a first flange (111) near the edge of the coil disc (100), the first flange (111) abutting against the side edge of the disc pack (20) near the edge of the coil disc (100);

and/or a second flanging (112) is arranged at the position, close to the center of the coil panel (100), of the bracket body (11), and the second flanging (112) abuts against the side edge, close to the center of the coil panel (100), of the magnetic disc set (20);

and/or the thickness of the magnetic disc group (20) ranges from 1 cm to 5 cm.

10. Coil disc according to claim 3, characterized in that the inner ring coil (31) and the outer ring coil (32) are connected in parallel or the inner ring coil (31) and the outer ring coil (32) are connected in series.

11. An electromagnetic cooking device, characterized in that it comprises a coil disk (100) according to any one of claims 1 to 10, said coil disk (100) being arranged in said electromagnetic cooking device.

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