CN212013098U - Coil panel and electromagnetic cooking device - Google Patents

Abstract

The utility model provides a coil panel and an electromagnetic cooking device, the coil panel comprises a coil support (10) and at least one coil group (20) coiled on the coil support (10), the coil group (20) comprises at least two lead wires (30) led out by the coil group (20); the outer sleeve of lead wire (30) is equipped with electrically insulated sleeve pipe (40), has seted up logical groove (43) on at least some sleeve pipe (40), and logical groove (43) are worn to establish by at least some lead wire (30) in sleeve pipe (40) through notch (431) of logical groove (43). The utility model discloses can avoid the branch part of lead wire to take place wearing and tearing at walking the line in-process, improve signal of telecommunication's stability in the coil panel, reduce the complexity of lead wire wiring simultaneously, promote the production efficiency of coil panel to the security and the stability that the electromagnetism cooking device that the assurance has this coil panel used.

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

As a common electromagnetic cooking device, an induction cooker has the advantages of rapid heating, no open fire, safety, convenience and the like, and is popular 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 support and a coil, the coil is wound by an enameled wire, an exposed wire is formed after the end 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 pot on the panel of the induction cooker. In the current coil, the inner lead is led out from the inner ring of the coil, passes through the top surface or the bottom surface of the coil, then is merged with the outer lead, and is led to the circuit board at the same time. During the wiring process that the inner lead and the outer lead are led to the circuit board, a protective tube is arranged outside part of the leads, and the leads are prevented from rubbing with external structural parts by the protective tube.

However, the conventional protection tube cannot be completely adapted to the wiring path of the branch portion of the lead, so that the protection effect of the protection tube on the lead is poor, the branch portion of the lead is easily abraded with an external structural member in the wiring process to cause a short circuit, the stability of the electric connection between the coil and the circuit board is reduced, and the use safety and stability of the induction cooker are affected.

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, this coil panel can effectively avoid the branch part of lead wire to take place wearing and tearing at walking the line in-process, improves signal of telecommunication's stability in the coil panel, reduces the complexity of lead wire wiring simultaneously, promotes the production efficiency of coil panel to the security and the stability that the electromagnetic cooking device who guarantees to have this coil panel used.

In order to achieve the above object, in a first aspect, the present invention provides a coil disc, including a coil support and at least one coil assembly wound on the coil support, wherein the coil assembly includes at least two leads led out by the coil assembly.

The outside cover of lead wire is equipped with the insulating sleeve pipe of electrical property, has seted up logical groove on at least some sleeve pipes, and the notch that leads to the groove communicates with sheathed tube mouth of pipe, and logical groove is worn to establish through the notch that leads to groove by at least some lead wires in the sleeve pipe.

The utility model provides a coil panel, through setting up coil carrier and coiling the coil assembly on coil carrier, utilize coil carrier support coil assembly to inject the route of coiling of coil assembly, thereby improve the stability that sets up of coil assembly, the coil assembly that has improved the on state produces the stability and the homogeneity in magnetic field. At least two lead wires are arranged in the coil group, so that the coil panel is electrically connected with a circuit board in the electromagnetic cooking device, and the input of an electric signal in the coil panel is realized. Through the insulating sleeve pipe of electrical property of the outside cover at the lead wire, avoid the outside electronic component of sleeve pipe to influence the transmission of the signal of telecommunication in the lead wire to be provided with logical groove on the sleeve pipe, logical groove can be worn to establish by at least partial lead wire, thereby be convenient for be connected to the sleeve pipe outside with the inside lead wire of sleeve pipe, accomplish the input of the signal of telecommunication in the coil assembly. Therefore, the sleeve can be used for protecting the lead, particularly, the branch part of the lead is not abraded with the electronic element outside the sleeve, so that the problem that the lead is short-circuited with the electronic element after the protective layer outside the lead is abraded is solved, meanwhile, the wiring complexity of the lead in the sleeve is reduced, the lead is prevented from being scratched by the sleeve, the stability of electric signal transmission in the coil panel is improved, the production efficiency of the coil panel is increased, and the safety and the high efficiency of use are improved.

In the coil disk described above, optionally, the through groove penetrates the entire sleeve in the extending direction of the sleeve, and two opposite notches of the through groove are respectively communicated with two opposite nozzles of the sleeve. The arrangement can effectively reduce the wiring difficulty of the lead wires and improve the manufacturing efficiency of the coil panel.

In the coil panel, optionally, the coil group includes at least two coils, at least two leads are led out from each coil, the at least two leads are inserted into the same sleeve, and at least one of the at least two leads is inserted into the through groove.

Through setting up the coil group for two at least coils, can improve the effect of generating heat of coil panel, utilize sheathed tube logical groove to reduce the wiring degree of difficulty of lead wire simultaneously, improved the protection effect of lead wire simultaneously.

In the above coil disk, optionally, the coil assembly 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 disk to the edge position of the coil disk, and a spacing region is provided between the outer edge of the inner ring coil and the inner edge of the outer ring coil.

The coil group is arranged into the inner ring coil and the outer ring coil which are sleeved with each other, and the interval area is arranged between the inner ring coil and the outer ring coil, so that the uniformity of magnetic field distribution generated by the coil panel can be improved, a high-temperature area and a low-temperature area in a heating area of the coil panel are reduced, the number of turns wound by the coil group is reduced, and the cost is reduced.

In the above coil panel, optionally, the inner ring coil and the outer ring coil are connected in parallel, and the lead includes an inner ring incoming line connected to the inner side of the inner ring coil, an inner ring outgoing line connected to the outer side of the inner ring coil, an outer ring incoming line connected to the inner side of the outer ring coil, and an outer ring outgoing line connected to the outer side of the outer ring coil.

At least part of the inner ring incoming lines and at least part of the outer ring incoming lines are combined to form incoming lines of the leads, and at least part of the inner ring outgoing lines and at least part of the outer ring outgoing lines are combined to form outgoing lines of the leads.

The connection difficulty of the inner ring coil and the outer ring coil can be effectively reduced by the arrangement, the inner ring incoming wire is electrically connected with the outer ring incoming wire, the inner ring outgoing wire is electrically connected with the outer ring outgoing wire, a user can conveniently control the electrical signal input process of the inner ring coil and the electrical signal input process of the outer ring coil through the incoming wire and the outgoing wire of the lead, and the working efficiency of the coil panel is improved.

In the coil panel, optionally, the bushing at least includes a wire inlet bushing sleeved on the wire inlet, and the wire inlet bushing includes a first extension pipe and a second extension pipe connected to each other;

the first end of the first extension pipe close to the second extension pipe extends towards the spacing area, the second end of the first extension pipe far away from the second extension pipe extends towards the center of the coil panel, and the through groove is formed in the first extension pipe;

the inner ring inlet wire penetrates through the first extension pipe and is led to the second extension pipe, the outer ring inlet wire penetrates through the through groove in the first extension pipe and is combined with the inner ring inlet wire to form an inlet wire, and the inlet wire penetrates through the second extension pipe.

Through setting up the inlet wire sleeve pipe to divide into first extension pipe and second extension pipe with the inlet wire sleeve pipe, can guarantee that inner ring inlet wire and inlet wire are located inlet wire sheathed tube different positions respectively, and the outer loop inlet wire of being convenient for merges with the inner ring inlet wire through leading to the inslot, and introduce the intraduct, thereby reduced outer loop inlet wire and inner ring inlet wire at the wiring complexity and the operation degree of difficulty of doubling process, and protected the transmission of signal of telecommunication in the inlet wire.

In the coil panel, optionally, the sleeve includes at least an outlet sleeve sleeved on the outlet, and the outlet sleeve includes a third extension tube and a fourth extension tube connected to each other;

a first end of the third extension pipe close to the fourth extension pipe extends towards the edge of the coil disc, a second end of the third extension pipe far away from the fourth extension pipe extends towards the spacing area, and the through groove is formed in the third extension pipe;

the inner ring outgoing line penetrates through the third extension pipe and is led to the fourth extension pipe, the outer ring outgoing line penetrates through the through groove in the third extension pipe and is combined with the outer ring outgoing line to form an outgoing line, and the outgoing line penetrates through the fourth extension pipe.

By arranging the outgoing line sleeve and dividing the outgoing line sleeve into the third extension pipe and the fourth extension pipe, the situation that the outgoing line and the outgoing line of the inner ring are respectively positioned at different parts of the outgoing line sleeve can be ensured, the outgoing line of the outer ring is combined with the outgoing line of the inner ring through the through groove and is led into the sleeve, the wiring complexity and the operation difficulty of the outgoing line of the outer ring and the outgoing line of the inner ring in the doubling process are reduced, and the transmission of electric signals in the outgoing line is protected.

In the coil panel, optionally, the width of the through groove is gradually reduced from the notch of the through groove to the bottom of the through groove, and the arrangement reduces the difficulty in penetrating the lead wire in the through groove. And/or the length range of the through groove is 10-60 mm; and/or the width range of the through groove is 0-3 mm; and/or the groove bottom of the through groove is of an arc structure. The arrangement can avoid the damage of the lead when the lead penetrates through the through groove.

In the coil disk described above, the wall of the sleeve may optionally have a thickness in the range of 0.2-0.7 mm.

The thickness of the sleeve pipe wall is too small, the electrical insulation performance of the sleeve pipe is reduced, the mechanical strength of the sleeve pipe is influenced, the thickness of the sleeve pipe wall is too large, the manufacturing cost of the coil panel is increased, the bending degree of the sleeve pipe is reduced, and the wiring process of a lead cannot be adapted.

In the coil panel, optionally, the sleeve is a single-layer tube, and the sleeve is a glass fiber tube or a silicone tube;

or the sleeve is a double-layer tube and comprises a glass fiber tube and a silicone tube sleeved outside the glass fiber tube.

In the coil disk, optionally, the length of the portion of the inner loop incoming wire that is not merged with the outer loop incoming wire is in the range of 20-60mm, and/or the length of the portion of the inner loop outgoing wire that is not merged with the outer loop outgoing wire is in the range of 15-55 mm.

In the coil panel, optionally, an end of the inner ring incoming wire far from the coil panel and an end of the outer ring incoming wire far from the coil panel are electrically connected to form a wire end of the incoming wire, and the wire end of the incoming wire is connected to a wire connecting terminal;

the end part of the inner ring outgoing line far away from the coil panel and the end part of the outer ring outgoing line far away from the coil panel form outgoing line wiring terminals, and the outgoing line wiring terminals are connected with outgoing line wiring terminals;

and/or a heat-shrinkable tube is sleeved at the joint of the wiring end of the incoming wire and the wiring terminal of the incoming wire and/or the joint of the wiring end of the outgoing wire and the wiring terminal of the outgoing wire.

The arrangement can utilize the incoming line wiring terminal and the outgoing line wiring terminal to simultaneously control the input of the electric signals of the incoming line of the inner ring and the incoming line of the outer ring, reduces the connection difficulty of the coil panel, and simultaneously improves the stability of the electric signal transmission of the coil panel.

In the coil panel, optionally, the coil support includes a support body and a plurality of magnetic strips disposed on the support body, the plurality of magnetic strips are radially arranged on the support body, the coil groups are wound on the support body and the magnetic strips, and at least part of the leads and the coil groups are respectively disposed on two opposite sides of the support body;

the bracket body is provided with at least one wire inlet and at least one wire outlet, the wire inlet of the lead passes through the wire inlet, and the wire outlet of the lead passes through the wire outlet.

The arrangement can avoid abrasion between the lead wires and the coil assembly, avoid the lead wires exposed due to abrasion, and prevent the short circuit between the lead wires and other electronic components on the coil assembly or the coil panel.

In the coil panel, the wire inlet may include an inner ring wire inlet and an outer ring wire inlet provided on the bracket body, the inner ring wire inlet is located on one side close to the center of the coil panel, and the outer ring wire inlet is located between the center of the coil panel and the edge of the coil panel.

The wire outlet comprises an inner ring wire outlet and an outer ring wire outlet which are arranged on the bracket body, the inner ring wire outlet is positioned between the center of the coil panel and the edge of the coil panel, and the outer ring wire outlet is positioned on one side close to the edge of the coil panel.

The arrangement can reduce the arrangement difficulty of the lead on the coil support and improve the wiring efficiency and the wiring stability of the lead on the coil panel.

In the coil panel, optionally, the inner ring incoming line is led out from the inner ring incoming line port, and extends to the outer ring incoming line port, and merges with the outer ring incoming line led out from the outer ring incoming line port to form an incoming line.

The inner ring outgoing line is led out from the inner ring outgoing line port, extends to the outer ring outgoing line port and is combined with the outer ring outgoing line led out from the outer ring outgoing line port to form an outgoing line. The arrangement can reduce the connection difficulty of incoming lines and outgoing lines.

In the coil panel, there may be a gap between adjacent magnetic strips, and at least a part of the incoming line and at least a part of the outgoing line are located in the gap.

Such an arrangement can avoid the magnetic stripe from affecting the wiring process of the lead.

The magnetic strips comprise a plurality of first magnetic strips and a plurality of second magnetic strips, two ends of each first magnetic strip extend to the center of the coil panel and the edge of the coil panel, the first ends of the second magnetic strips are arranged close to the interval areas, and the second ends of the second magnetic strips extend to the edge of the coil panel; the plurality of first magnetic strips and the second magnetic strips are arranged at intervals.

The gap is located between adjacent first magnetic strips, or the gap is located between adjacent second magnetic strips, or the gap is located between adjacent first magnetic strips and second magnetic strips.

Through setting up the magnetic stripe into first magnetic stripe and second magnetic stripe, improve the magnetic conduction effect that coil bracket produced magnetic field to coil assembly for magnetic field acts on heating surface one side of coil panel.

In the above coil panel, optionally, a fastener is disposed on the coil panel, and the fastener includes an incoming line fastener for fixing an incoming line and an outgoing line fastener for fixing an outgoing line.

The coil panel is provided with a plurality of touch through holes, the touch through holes are positioned at positions close to the buckling parts, the buckling parts and the touch through holes are arranged oppositely, and a clamping area for leading wires to pass through is formed between the buckling parts and the touch through holes.

The stability of the lead wire on the coil disc can be improved by arranging the buckling part, and the buckling part and the collision perforation are oppositely arranged, so that the difficulty in manufacturing the coil support can be reduced.

And/or the wire inlet buckle and the wire outlet buckle are both positioned at the edge position close to the coil disc.

The arrangement can effectively reduce the influence of the incoming line buckle and the outgoing line buckle on other structural members on the coil panel.

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

The utility model provides an electromagnetic cooking device sets up the coil panel into coil carrier and coils the coil assembly on coil carrier through with the coil panel, utilizes coil carrier support coil assembly to inject the route of coiling of coil assembly, thereby improve the stability that sets up of coil assembly, the coil assembly that has improved the on state produces the stability and the homogeneity in magnetic field. At least two lead wires are arranged in the coil group, so that the coil panel is electrically connected with a circuit board in the electromagnetic cooking device, and the input of an electric signal in the coil panel is realized. Through the sleeve pipe of establishing the electrical insulation at the outside cover of lead wire, avoid the outside electronic component of sleeve pipe to influence the transmission of the signal of telecommunication in the lead wire to be provided with logical groove on the sleeve pipe, logical groove can be worn to establish by at least partial lead wire, thereby be convenient for with the lead wire connection of sleeve pipe one side to sheathed tube opposite side, accomplish the input of the signal of telecommunication in the coil assembly. Therefore, the lead can be protected by the sleeve, particularly, the branch part of the lead is not abraded with an electronic element outside the sleeve, so that the problem that the lead is short-circuited with the electronic element after a protective layer outside the lead is abraded is solved, meanwhile, the wiring complexity of the lead in the sleeve is reduced, the lead is prevented from being scratched by the sleeve, the stability of electric signal transmission in the coil panel is improved, and the use safety and the high efficiency of the coil panel and an electromagnetic cooking device with the coil panel are improved.

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 side of a coil panel according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a coil support side of a coil panel according to an embodiment of the present invention;

fig. 3 is a top view of a coil panel according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a cross section a-a in fig. 3 according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a section B-B in fig. 3 according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a top surface of a coil support of a coil panel according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a bottom surface of a coil support of a coil panel according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a magnetic stripe of a coil panel according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a first magnetic stripe of a coil panel according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a second magnetic stripe of the coil panel according to an embodiment of the present invention;

fig. 11 is an exploded view of a coil assembly of a coil panel according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a sleeve of a coil panel according to an embodiment of the present invention;

fig. 13 is a front view of one side of the through groove of the sleeve of the coil panel according to the first embodiment of the present invention;

fig. 14 is a schematic partial structural view of a through groove of another sleeve of a coil panel according to an embodiment of the present invention;

fig. 15 is a schematic structural view of a through groove of a coil panel penetrating through two ends of a sleeve 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-inner ring wire inlet;

112-inner ring outlet; 113-outer ring incoming line; 114-outer ring outlet; 12-a magnetic strip;

121-a first magnetic stripe; 122-a second magnetic stripe; 123-gap; 13-a fastener; 14-punching;

20-coil assembly; 21-inner loop coil; 22-outer loop coil; 23-spacer region;

24-a central vacant area; 30-a lead; 31-incoming line; 311-inner loop incoming line; 312-outer ring incoming line;

313-an incoming line terminal; 32-outgoing line; 321-an inner ring outgoing line; 322-outer ring outgoing line;

323-outlet wiring terminal; 40-a cannula; 40 a-a nozzle; 41-wire inlet sleeve;

411 — first extension tube; 412-a second extension tube; 42-a wire outlet sleeve; 421-a third extension tube;

422-a fourth extension tube; 43-through slots; 431-notches; 432-groove bottom; 50-heat-shrinkable tube.

Detailed Description

The utility model discloses an applicant discovers in the course of the actual research, and in present electromagnetism stove, the coil panel is generally placed in the holding chamber that panel and drain pan enclose, and the coil panel includes that coil support and dish establish the coil on 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 the current coil, the inner lead is led out from the inner ring of the coil, passes through the top surface or the bottom surface of the coil, then is merged with the outer lead, and is led to the circuit board at the same time. During the wiring process that the inner lead and the outer lead are led to the circuit board, a protective tube is arranged outside part of the leads, and the leads are prevented from rubbing with external structural parts by the protective tube. However, the conventional protection tube cannot be completely adapted to the routing path of the branch portion of the lead, so that the protection effect of the protection tube on the lead is poor, the branch portion of the lead is easily abraded with electronic elements around the lead or on a circuit board in the routing process, the varnish of the lead is peeled off or the varnish of the lead is extruded and deformed to crack, and a lead in the lead is exposed, so that the problem of short circuit between the lead and the electronic elements is easily caused, and the stability of the electric connection between the coil and the circuit board is reduced. And both are comparatively complicated by the in-process wiring mode that the protection tube is drawn forth to the outside, and the operation process of arranging of lead wire is loaded down with trivial details in process of production, has increased the manufacturing degree of difficulty, has reduced the production efficiency of this coil panel and electromagnetism stove to influence security and the stability that the electromagnetism stove used.

Based on foretell technical problem, the utility model provides a coil panel and electromagnetism cooking device, this coil panel utilize coil support coil through for coil support and coil the coil on coil support to inject the route of coiling of coil, thereby improve the stability that sets up of coil, improved the stability and the homogeneity in the coil production magnetic field of on-state. At least two lead wires are arranged in the coil, so that the coil panel is electrically connected with a circuit board in the electromagnetic cooking device, and the input of an electric signal in the coil panel is realized. Through the sleeve pipe of establishing the electrical insulation at the outside cover of lead wire, avoid the outside electronic component of sleeve pipe to influence the transmission of the signal of telecommunication in the lead wire to be provided with logical groove on the sleeve pipe, logical groove can be worn to establish by at least partial lead wire, thereby be convenient for with the lead wire connection of sleeve pipe one side to sheathed tube opposite side, accomplish the input of the signal of telecommunication in the coil. Therefore, the lead can be protected by the sleeve, particularly, the branch part of the lead is not abraded with an electronic element outside the sleeve, so that the problem that the lead is short-circuited with the electronic element after a protective layer outside the lead is abraded is solved, meanwhile, the wiring complexity of the lead in the sleeve is reduced, the lead is prevented from being scratched by the sleeve, the stability of electric signal transmission in the coil panel is improved, and the use safety and the high efficiency of the coil panel and an electromagnetic cooking device with the coil panel are improved.

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 side of a coil panel according to an embodiment of the present invention. Fig. 2 is a schematic structural diagram of one side of a coil support of a coil panel according to an embodiment of the present invention. Fig. 3 is a top view of a coil panel according to an embodiment of the present invention. Fig. 4 is a schematic structural diagram of a cross section a-a in fig. 3 according to an embodiment of the present invention. Fig. 5 is a schematic structural diagram of a section B-B in fig. 3 according to an embodiment of the present invention. Fig. 6 is a schematic structural diagram of a top surface of a coil support of a coil panel according to an embodiment of the present invention. Fig. 7 is a schematic structural diagram of a bottom surface of a coil support of a coil panel according to an embodiment of the present invention. Fig. 8 is a schematic structural diagram of a magnetic stripe of a coil panel according to an embodiment of the present invention. Fig. 9 is a schematic structural diagram of a first magnetic stripe of a coil panel according to an embodiment of the present invention. Fig. 10 is a schematic structural diagram of a second magnetic stripe of the coil panel according to an embodiment of the present invention. Fig. 11 is an exploded view of a coil assembly of a coil panel according to an embodiment of the present invention. Fig. 12 is a schematic structural diagram of a sleeve of a coil panel according to an embodiment of the present invention. Fig. 13 is a front view of one side of the through groove of the sleeve of the coil panel according to an embodiment of the present invention. Fig. 14 is a schematic partial structural view of a through groove of another sleeve of a coil panel according to an embodiment of the present invention. Fig. 15 is a schematic structural view of a through groove of a coil panel penetrating through two ends of a sleeve according to an embodiment of the present invention.

Referring to fig. 1 to 15, a coil panel 100 according to the first embodiment includes a coil support 10 and at least one coil assembly 20 wound on the coil support 10, where the coil assembly 20 includes at least two lead wires 30 led out from the coil assembly 20.

An electrically insulating sleeve 40 is sleeved outside the lead 30, a through groove 43 is formed in at least part of the sleeve 40, a notch 431 of the through groove 43 is communicated with a pipe orifice 40a of the sleeve 40, and at least part of the lead 30 in the sleeve 40 penetrates through the through groove 43 through the notch 431 of the through groove 43.

It should be noted that the coil panel 100 provided in the present embodiment may include a coil support 10 made of a magnetic conductive material and at least one coil set 20 wound. The coil support 10 and the coil panel 100 may be in a circular structure as shown in fig. 1 and 2, or may be in an oval or square structure according to the limitation of the installation space inside the electromagnetic cooking apparatus, which is not limited in this embodiment.

The coil support 10 may be made of at least partially or entirely magnetic conductive material, so as to form a magnetic portion of the coil support 10, and the magnetic portion may have a gathering and guiding function on the magnetic induction lines generated by the coil assembly 20, so that the magnetic induction lines act on the cookware above the coil panel 100. The magnetic part may be a plurality of magnetic strips 12 located between the coil support 10 and the coil assembly 20, i.e., the coil support 10 may include a support body 11 and a plurality of magnetic strips 12 disposed on the support body 11. The plurality of magnetic strips 12 are radially arranged on the bracket body 11 at the center of the coil bracket 10, the coil assembly 20 is wound on the bracket body 11 and the magnetic strips 12, the width and height of the magnetic strips 12 can be set according to the structure and requirement of the coil bracket 10, and the embodiment does not limit the configuration. A plurality of coil slots arranged in a spiral shape may be disposed on the coil support 10, and the coil assembly 20 may be wound according to the positions of the coil slots, so that the arrangement positions of the coil assembly 20 on the coil support 10 are effectively fixed by the coil slots.

The coil assembly 20 on the coil support 10 may be formed by winding an enameled wire bundle along the radial direction of the coil support 10, the enameled wire bundle is formed by winding or twisting a plurality of copper wires into a strand, and an insulator (generally, a paint skin) is coated outside the enameled wire bundle. Based on the coil support 10 wound with multiple layers of coil assemblies 20, the coil assemblies 20 are electrically connected with the power supply device through at least two leads 30, so that a large number of electrical signals are transmitted in the leads 30, and the enamel of the enameled wire harness itself is used to prevent the electrical contact and friction between adjacent leads 30 and between the leads 30 and the coil assemblies 20, which is not ideal in blocking effect, and is liable to cause the problem that the leads 30 often interfere with each other or wear each other when the coil assemblies 20 transmit the electrical signals, even the phenomenon of electrical breakdown occurs, and seriously affects the stability and safety of the coil panel 100 in use. In contrast, in the present embodiment, an electrically insulating sleeve 40 is sleeved outside the lead 30 of the coil assembly 20.

As an achievable embodiment, the sleeve 40 may be a single layer tube, the sleeve 40 being a glass fiber tube or a silicone tube. As another practical implementation, the sleeve 40 may be a double-layer tube, and the sleeve 40 includes a glass fiber tube and a silicone tube sleeved outside the glass fiber tube.

Wherein the thickness of the wall of the sleeve 40 may range from 0.2 to 0.7 mm. When the wall thickness of the sleeve 40 is too small, the electrical insulation performance of the sleeve 40 is reduced, and the mechanical strength of the sleeve 40 is affected, but the wall thickness of the sleeve 40 is too large, so that the manufacturing cost of the coil panel 100 is increased, and the bending degree of the sleeve 40 is reduced, which cannot adapt to the bending and routing process of the lead 30.

Further, as shown in fig. 11 and 12, at least a part of the sleeve 40 is provided with a through slot 43, the through slot 43 connects the inside and the outside of the sleeve 40, in practical use, at least a part of the lead 30 in the sleeve 40 can pass through the through slot 43 to be led to the outside of the sleeve 40 and be wound in the coil slot of the coil support 10, so that the wiring difficulty and complexity of leading the lead 30 in the sleeve 40 to the coil support 10 are reduced. The notch 431 of the through groove 43 communicates with the nozzle 40a of the sleeve 40, and the lead 30 in the sleeve 40 passes through the through groove 43 through the notch 431 of the through groove 43. When the lead 30 in the sleeve 40 is led out of the sleeve 40 or when the lead 30 outside the sleeve 40 is led into the sleeve 40, the lead can be routed through the notch 431 communicated with the nozzle 40a, so that the wiring difficulty of the lead 30 is effectively reduced, and the manufacturing efficiency of the coil panel 100 is improved.

Wherein, with reference to fig. 15, as an implementable embodiment, the through slot 43 extends through the entire sleeve 40 in the extension direction of the sleeve 40, the two opposite notches 431 of the through slot 43 communicating with the two opposite nozzles 40a of the sleeve 40, respectively.

It should be noted that, the through groove 43 may also be configured to penetrate through the groove body, that is, the lead 30 penetrates through the through groove 43, and the lead may enter from the notch 431 of the through groove 43, which is communicated with the pipe orifice 40a, so as to slide in the through groove body, which not only reduces the difficulty of the lead 30 penetrating through the sleeve 40, but also guides the wiring of the lead 30 by using the through groove body, thereby improving the wiring efficiency of the lead 30.

Specifically, the coil assembly 20 may include at least two coils, each coil has at least two leads 30 led out therefrom, the at least two leads 30 are inserted into the same casing 40, and at least one of the at least two leads 30 is inserted into the through slot 43.

It should be noted that the coil assembly 20 of the present embodiment may include at least two coils, and the at least two coils may be arranged in an inner and outer sleeve manner, or arranged in an up-down overlapping manner, or arranged in an array manner, and the specific arrangement manner of the coils is not limited in the present embodiment. At least two coils are disposed in the coil assembly 20, and different heating effects can be formed by using different coils. The specific operation mode is as follows: the actual heating temperature of each coil is regulated and controlled by respectively controlling the electric signal input of the coils, so that the coils at different positions can have different heating effects. For example, during the cooking process, the temperature near the center of the coil panel 100 is required to be higher, and the temperature near the edge of the coil panel is required to be lower, so that the current input to the coil near the center of the coil panel 100 can be increased, and the current input to the coil near the edge of the coil panel 100 can be reduced, thereby enriching the heating effect of the coil assembly 20 and meeting the user's requirements for different heating effects. The present embodiment does not limit the specific number of coils in the coil assembly 20.

Specifically, referring to fig. 1 to 4, the coil assembly 20 at least includes an inner coil 21 and an outer coil 22 sleeved with each other from the center of the coil panel 100 to the edge of the coil panel 100, and a spacing region 23 is provided between the outer edge of the inner coil 21 and the inner edge of the outer coil 22.

It should be noted that, in the current coil assembly 20, the coil panel 100 is tightly wound from the center position of the coil panel 100 to the edge position of the coil panel 100, and the magnetic fields generated by the coil panel 100 are overlapped at a position close to the middle point of the radius of the coil panel 100, so that the magnetic field strength at this position is much stronger than the center position and the edge position of the coil panel 100. Such a phenomenon causes the temperature of the central position and the edge position of the heated pot to be lower, and a low-temperature heating area is generated, so that the problem that food in the pot is often half-cooked is caused. However, the temperature near the midpoint of the radius is high, creating a heated high temperature zone, causing problems with the food therein often being burnt. In view of the above, in the present embodiment, the coil assembly 20 is disposed as the inner ring coil 21 and the outer ring coil 22 which are sleeved with each other, and a spacing region 23 is provided between the two, and no coil assembly 20 is disposed in the spacing region 23, when the magnetic fields generated by the inner ring coil 21 and the outer ring coil 22 are superposed in the spacing region 23, the magnetic field strength of the spacing region 23 and the magnetic field strength of the edge position of the coil panel 100 are substantially equal, so that there are no heating low temperature region and heating high temperature region in the heated pot, the heating uniformity of the whole pot 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 assembly 20 is not disposed in the spacing region 23, so that the number of turns of the coil assembly 20 can be effectively reduced, and the manufacturing cost of the coil panel 100 can be reduced.

Referring to FIG. 4, a central void area 24 is reserved in the center of the coil, the central void area 24 is not wound around the coil assembly 20, and the temperature measuring element can be disposed in a portion of the central void area 24. Wherein, the radius of the central vacant region 24 may be the portion shown by L1 in fig. 4, the length of the inner loop coil 21 may be the portion shown by L2 in the figure, the length of the spacing region 23 may be the portion shown by L3, and the length of the outer loop coil 22 may be the 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 inner ring coil 21 and the outer ring coil 22 may be connected in parallel with each other, and the lead 30 includes an inner ring incoming line 311 connected to the inner side of the inner ring coil 21 and an inner ring outgoing line 321 connected to the outer side of the inner ring coil 21, and an outer ring incoming line 312 connected to the inner side of the outer ring coil 22 and an outer ring outgoing line 322 connected to the outer side of the outer ring coil 22.

At least part of the inner ring incoming lines 311 and at least part of the outer ring incoming lines 312 merge to form the incoming lines 31 of the lead 30, and at least part of the inner ring outgoing lines 321 and at least part of the outer ring outgoing lines 322 merge to form the outgoing lines 32 of the lead 30.

It should be noted that, the inner ring coil 21 and the outer ring coil 22 are connected in parallel, electrical signals can be simultaneously input to the inner ring coil 21 and the outer ring coil 22 by using the incoming line 31, and output electrical signals of the inner ring coil 21 and the outer ring coil 22 are simultaneously received by using the outgoing line 32, so that the efficiency of the control operation of the coil panel 100 is improved.

Referring to fig. 11, in this embodiment, the sleeve 40 at least includes a wire inlet sleeve 41 sleeved on the wire inlet 31, and the wire inlet sleeve 41 includes a first extension pipe 411 and a second extension pipe 412 connected to each other.

A first end of the first extension pipe 411 close to the second extension pipe 412 extends toward the spacing region 23, a second end of the first extension pipe 411 far from the second extension pipe 412 extends toward the center of the coil disk 100, and the through groove 43 is opened on the first extension pipe 411.

The inner ring incoming line 311 is arranged in the first extension pipe 411 and led to the second extension pipe 412, the outer ring incoming line 312 is arranged in the through groove 43 on the first extension pipe 411 and combined with the inner ring incoming line 311 to form the incoming line 31, and the incoming line 31 is arranged in the second extension pipe 412.

It should be noted that, during the wiring process of the lead 30, the lead wire 31 is inserted through the lead bushing 41, and the outer ring lead wire 312 is inserted through the notch 431 communicating with the nozzle 40a and is coiled in the coil groove at the position of the outer ring coil 22. The inner loop incoming line 311 is still located in the first extension tube 411 of the bushing 40, extends to the center of the coil panel 100 along with the first extension tube 411, and is coiled along the coil slot where the inner loop coil 21 is located, the first extension tube 411 can protect a portion, which is not merged with the outer loop incoming line 312, of the inner loop incoming line 311 from generating electrical signal interference with an external electronic component, and wiring complexity and operation difficulty in the process that the outer loop incoming line 312 is led out of the incoming line bushing 41 are reduced.

Similar to the above-mentioned incoming line 31, the bushing 40 at least includes an outgoing bushing 42 sleeved on the outgoing line 32, and the outgoing bushing 42 includes a third extending pipe 421 and a fourth extending pipe 422 connected to each other.

A first end of the third extension pipe 421 near the fourth extension pipe 422 extends toward the edge position of the coil disk 100, a second end of the third extension pipe 421 far from the fourth extension pipe 422 extends toward the spacing region 23, and the through groove 43 is opened on the third extension pipe 421.

The inner ring outgoing line 321 is arranged in the third extension pipe 421 and led to the fourth extension pipe 422, the outer ring outgoing line 322 is arranged in the through groove 43 of the third extension pipe 421 and combined with the outer ring outgoing line 322 to form the outgoing line 32, and the outgoing line 32 is arranged in the fourth extension pipe 422.

It should be noted that, during the wiring process of the lead wire 30, the outgoing wire 32 passes through the wire bushing 42, and the outer loop outgoing wire 322 passes through the notch 431 communicating with the nozzle 40a and is coiled in the coil groove where the outer loop coil 22 is located. The inner ring outgoing line 321 is still located in the third extension tube 421 of the sleeve 40, extends to the region between the center position and the edge position of the coil panel 100 along with the third extension tube 421, and is coiled along the coil slot at the position of the inner ring coil 21, the third extension tube 421 can protect the part, located at the position where the outer ring outgoing lines 322 are combined, of the inner ring outgoing line 321 from generating electric signal interference with external electronic elements, and wiring complexity and operation difficulty in the process that the outer ring outgoing lines 322 are led out of the outgoing line sleeve 42 are reduced.

As an achievable embodiment, the groove width of the through groove 43 is gradually reduced from the notch 431 of the through groove 43 to the groove bottom 432 of the through groove 43, and such an arrangement reduces the resistance of the threading process of the lead 30 in the through groove 43 and guides the moving process of the lead 30 in the through groove 43, thereby reducing the difficulty of the threading operation of the lead 30 in the through groove 43.

As an achievable embodiment, the length of the through slot 43 is in the range of 10-60 mm. The length of the through groove 43 may be a portion shown in c of fig. 13, and such a length may ensure a wrapping effect of the first extension pipe 411 having the through groove 43 on the inner loop incoming line 311, and a wrapping effect of the third extension pipe 421 having the through groove 43 on the inner loop outgoing line 321.

As an achievable embodiment, the slot width of the through slots 43 is in the range of 0-3 mm. The groove width of the through groove 43 may be a portion shown by d in fig. 13, and may be equal along the notch 431 to the groove bottom 432 or may be gradually reduced based on the groove width of the through groove 43, so that the groove width may be the maximum groove width of the through groove 43. Too large a slot width may reduce the mechanical strength of the bushing 40 and affect the electrical insulation properties of the bushing 40.

As an implementation manner, referring to fig. 14, the groove bottom 432 of the through groove 43 has an arc structure, which can avoid scratching the paint coat of the lead 30, thereby avoiding the lead 30 from being damaged when passing through the through groove 43.

As an achievable embodiment, the length of the portion of the inner loop incoming line 311 that is not merged with the outer loop incoming line 312 is in the range of 20-60mm, which may be the portion a shown in fig. 11. As an achievable embodiment, the length of the portion of the inner outgoing line 321 not merged with the outer outgoing line 322 is in the range of 15-55mm, which may be the portion b shown in fig. 11. In practical use, a user may select, as needed, a specific length value of a portion of the inner ring incoming line 311 that is not merged with the outer ring incoming line 312 and a specific length value of a portion of the inner ring outgoing line 321 that is not merged with the outer ring outgoing line 322 within the above range, which is not limited in this embodiment.

Specifically, referring to fig. 5 and 11, an end of the inner loop incoming line 311 away from the coil panel 100 and an end of the outer loop incoming line 312 away from the coil panel 100 are electrically connected to form a terminal of the incoming line 31, and the terminal of the incoming line 31 is connected to an incoming line terminal 313.

The end of the inner ring outgoing line 321 away from the coil panel 100 and the end of the outer ring outgoing line 322 away from the coil panel 100 form the terminals of the outgoing lines 32, and the terminals of the outgoing lines 32 are connected with outgoing line connection terminals 323.

The heat-shrinkable tube 50 is sleeved at the joint of the wiring end of the incoming line 31 and the incoming line wiring terminal 313 and/or the joint of the wiring end of the outgoing line 32 and the outgoing line wiring terminal 323.

It should be noted that at least a part of the junction of the inner ring incoming line 311 and the outer ring incoming line 312 may be connected in a hot-pressing manner, the enamel of the enameled wire bundle is melted at a high temperature during the hot-pressing process, the wires in the enameled wire bundle are pressed together to electrically connect the two, and the heat shrink tube 50 is sleeved outside the connected wires to protect the structural stability of the junction. Wherein a portion of the heat shrinkable tube 50 may be sleeved outside the sleeve 40, and the sleeve 40 is fastened by the heat shrinkable tube 50 to prevent the sleeve 40 from sliding or shifting outside the lead 30.

As shown in fig. 1 and 2, at least a portion of the lead 30 and the coil assembly 20 are respectively located at two opposite sides of the bracket body 11; the bracket body 11 is provided with at least one wire inlet and at least one wire outlet, wherein a wire inlet 31 of the lead 30 passes through the wire inlet, and a wire outlet 32 of the lead 30 passes through the wire outlet. Due to the arrangement, the lead 30 and the coil assembly 20 can be separated by the support body 11, and the distance between the lead 30 and the coil assembly 20 is increased, so that the lead 30 and the coil assembly 20 are prevented from being worn, and the problem of short circuit caused by the fact that a lead in the worn lead 30 is exposed by a lead wire is avoided.

Specifically, the wire inlet includes an inner ring wire inlet 111 and an outer ring wire inlet 113 arranged on the bracket body 11, the inner ring wire inlet 111 is located at a side close to the center position of the coil panel 100, and the outer ring wire inlet 113 is located between the center position of the coil panel 100 and the edge position of the coil panel 100. Due to the arrangement, the inner ring incoming line 311 is led out from the inner ring incoming line port 111 and then directly wound in the coil slot at the center position of the coil panel 100, and the outer ring incoming line 312 is led out from the outer ring incoming line port 113 and then directly wound in the coil slot between the center position of the coil panel 100 and the edge position of the coil panel 100, so that the lengths of the freely placed parts of the inner ring incoming line 311 and the outer ring incoming line 312 are reduced, and the wiring stability of the inner ring incoming line 311 and the outer ring incoming line 312 is improved.

The wire outlets include an inner ring wire outlet 112 and an outer ring wire outlet 114 arranged on the bracket body 11, the inner ring wire outlet 112 is located between the center of the coil panel 100 and the edge of the coil panel 100, and the outer ring wire outlet 114 is located on the side close to the edge of the coil panel 100. With the arrangement, the inner ring outgoing line 321 led out from the coil slot between the central position of the coil panel 100 and the edge position of the coil panel 100 is directly inserted into the inner ring outgoing line outlet 112, and the outer ring outgoing line 322 led out from the coil slot near the edge position is directly inserted into the outer ring outgoing line outlet 114, so that the lengths of the freely placed parts of the inner ring outgoing line 321 and the outer ring outgoing line 322 are reduced, and the wiring stability of the two is improved.

The inner ring incoming line 311 is led out from the inner ring incoming line port 111, extends to the outer ring incoming line port 113, and is merged with the outer ring incoming line 312 led out from the outer ring incoming line port 113 to form the incoming line 31. The inner ring outgoing line 321 is led out from the inner ring outgoing line outlet 112, extends to the outer ring outgoing line outlet 114, and is combined with the outer ring outgoing line 322 led out from the outer ring outgoing line outlet 114 to form the outgoing line 32. The arrangement can reduce the connection difficulty of the incoming line 31 and the outgoing line 32 and improve the wiring efficiency of the incoming line 31 and the outgoing line 32.

Referring to fig. 8 to 10, in the case that the magnetic part of the coil support 10 of the present embodiment is a plurality of magnetic strips 12, a gap 123 is formed between adjacent magnetic strips 12, and at least a part of the incoming line 31 and at least a part of the outgoing line 32 are located in the gap 123. Such an arrangement may avoid the magnetic stripe 12 from interfering with the routing of the lead 30.

The magnetic strips 12 include a plurality of first magnetic strips 121 and a plurality of second magnetic strips 122, two ends of the first magnetic strips 121 respectively extend to the central position of the coil panel 100 and the edge position of the coil panel 100, a first end of the second magnetic strips 122 is disposed near the spacing region 23, and a second end of the second magnetic strips 122 extends to the edge position of the coil panel 100; the plurality of first magnetic strips 121 and the plurality of second magnetic strips 122 are disposed at intervals. It should be noted that the first magnetic stripe 121 may have a magnetic conductive effect on both the inner loop coil 21 and the outer loop coil 22, and the second magnetic stripe 122 may have a magnetic conductive effect on the outer loop coil 22 in a targeted manner. In one embodiment, the gap 123 is located between adjacent first magnetic strips 121, in another embodiment, the gap 123 is located between adjacent second magnetic strips 122, or the gap 123 is located between adjacent first magnetic strips 121 and second magnetic strips 122.

Referring to fig. 6, a fastener 13 is disposed on the coil panel 100, and the fastener 13 includes an incoming line fastener for fixing an incoming line 31 and an outgoing line fastener for fixing an outgoing line 32. The coil panel 100 has a plurality of through holes 14, the through holes 14 are located near the fasteners 13, the fasteners 13 are disposed opposite to the through holes 14, and a fastening area for the lead 30 to pass through is formed between the fasteners 13 and the through holes 14.

It should be noted that, the bumping hole 14 is formed in the bracket body 11 of the coil disc 100, so that the manufacturing difficulty of the mold of the bracket body 11 can be reduced, the fastener 13 is arranged at the position of the bumping hole 14, so that the stability of the lead 30 on the coil disc 100 can be improved by using the fastener 13, and the fastener 13 and the bumping hole 14 are arranged oppositely, so that the mold of the fastener 13 is favorably formed, and the manufacturing difficulty of the bracket body 11 is further reduced.

As an implementable embodiment, both the incoming and outgoing wire snaps are located near the edge of the coil disk 100. It should be noted that, based on the coil slot inside the coil panel 100, the coil can be fixed by using the coil slot, and the lead 30 of the coil can be fixed by using the incoming wire buckle and the outgoing wire buckle in the process of leading out the 32-coil panel 100, so that not only the stability of the coil on the coil support 10 can be improved, but also the influence of the incoming wire buckle and the outgoing wire buckle on the other internal structural components of the coil panel 100 can be avoided.

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. A coil disc, characterized by comprising a coil support (10) and at least one coil assembly (20) wound on the coil support (10), the coil assembly (20) comprising at least two leads (30) led out of the coil assembly (20);

an electrically insulating sleeve (40) is sleeved outside the lead (30), at least part of the sleeve (40) is provided with a through groove (43), a notch (431) of the through groove (43) is communicated with a pipe opening (40a) of the sleeve (40), and at least part of the lead (30) in the sleeve (40) penetrates through the through groove (43) through the notch (431) of the through groove (43).

2. Coil disk according to claim 1, characterized in that the through slot (43) runs through the entire sleeve (40) in the direction of extension of the sleeve (40), the two opposite notches (431) of the through slot (43) communicating with the two opposite mouths (40a) of the sleeve (40), respectively.

3. Coil disc according to claim 1 or 2, characterized in that the coil assembly (20) comprises at least two coils, each of which leads out at least two of the leads (30), at least two of the leads (30) being inserted in one and the same bushing (40), and at least one of the at least two leads (30) being inserted in the through slot (43).

4. A coil disc according to claim 3, wherein the coil assembly (20) comprises at least an inner coil (21) and an outer coil (22) sleeved with each other from the center position of the coil disc (100) to the edge position of the coil disc (100), and a spacing region (23) is provided between the outer edge of the inner coil (21) and the inner edge of the outer coil (22);

the inner ring coil (21) and the outer ring coil (22) are connected in parallel, the lead (30) comprises an inner ring incoming line (311) connected to the inner side of the inner ring coil (21), an inner ring outgoing line (321) connected to the outer side of the inner ring coil (21), an outer ring incoming line (312) connected to the inner side of the outer ring coil (22) and an outer ring outgoing line (322) connected to the outer side of the outer ring coil (22);

at least part of the inner ring incoming line (311) and at least part of the outer ring incoming line (312) are combined to form an incoming line (31) of the lead (30), and at least part of the inner ring outgoing line (321) and at least part of the outer ring outgoing line (322) are combined to form an outgoing line (32) of the lead (30).

5. Coil disc according to claim 4, characterized in that the bushing (40) comprises at least a service bushing (41) fitted over the service wire (31), the service bushing (41) comprising a first extension tube (411) and a second extension tube (412) connected to each other;

a first end of the first extension pipe (411) close to the second extension pipe (412) extends towards the interval area (23), a second end of the first extension pipe (411) far away from the second extension pipe (412) extends towards the central position of the coil panel (100), and the through groove (43) is opened on the first extension pipe (411);

the inner ring inlet wire (311) is arranged in the first extension pipe (411) in a penetrating mode and led to the second extension pipe (412), the outer ring inlet wire (312) is arranged in the through groove (43) in the first extension pipe (411) in a penetrating mode and combined with the inner ring inlet wire (311) to form the inlet wire (31), and the inlet wire (31) is arranged in the second extension pipe (412) in a penetrating mode;

and/or the sleeve (40) at least comprises a wire outlet sleeve (42) sleeved on the wire outlet (32), and the wire outlet sleeve (42) comprises a third extension pipe (421) and a fourth extension pipe (422) which are connected with each other;

a first end of the third extension pipe (421) close to the fourth extension pipe (422) extends towards the edge position of the coil panel (100), a second end of the third extension pipe (421) far away from the fourth extension pipe (422) extends towards the spacing region (23), and the through groove (43) is opened on the third extension pipe (421);

the inner ring outgoing line (321) penetrates through the third extension pipe (421) and leads to the fourth extension pipe (422), the outer ring outgoing line (322) penetrates through the through groove (43) in the third extension pipe (421), and is combined with the outer ring outgoing line (322) to form the outgoing line (32), and the outgoing line (32) penetrates through the fourth extension pipe (422).

6. Coil disk according to claim 3, characterized in that the slot width of the through slots (43) tapers from the slot opening (431) of the through slots (43) to the slot bottom (432) of the through slots; and/or the length range of the through groove (43) is 10-60 mm; and/or the width range of the through groove (43) is 0-3 mm; and/or the groove bottom (432) of the through groove (43) is of an arc structure.

7. Coil disk according to claim 3, characterized in that the wall of the sleeve (40) has a thickness in the range of 0.2-0.7 mm.

8. Coil disc according to claim 4, characterized in that the end of the inner ring incoming wire (311) remote from the coil disc (100) and the end of the outer ring incoming wire (312) remote from the coil disc (100) are electrically connected to form a terminal of the incoming wire (31), the terminal of the incoming wire (31) being connected to an incoming wire connection terminal (313);

the end part of the inner ring outgoing line (321) far away from the coil panel (100) and the end part of the outer ring outgoing line (322) far away from the coil panel (100) form a terminal of the outgoing line (32), and the terminal of the outgoing line (32) is connected with an outgoing line connecting terminal (323);

and a heat-shrinkable tube (50) is sleeved at the joint of the wiring end of the incoming wire (31) and the incoming wire wiring terminal (313), and/or the joint of the wiring end of the outgoing wire (32) and the outgoing wire wiring terminal (323).

9. Coil disc according to claim 4, wherein the coil support (10) comprises a support body (11) and a plurality of magnetic strips (12) arranged on the support body (11), the plurality of magnetic strips (12) are arranged on the support body (11) in a radial manner, the coil assembly (20) is wound on the support body (11) and the magnetic strips (12), and at least part of the leads (30) and the coil assembly (20) are respectively positioned at two opposite sides of the support body (11);

the bracket body (11) is provided with at least one wire inlet and at least one wire outlet, the wire inlet (31) of the lead (30) penetrates through the wire inlet, and the wire outlet (32) of the lead (30) penetrates through the wire outlet;

the wire inlet comprises an inner ring wire inlet (111) and an outer ring wire inlet (113) which are arranged on the bracket body, the inner ring wire inlet (111) is positioned on one side close to the center position of the coil panel (100), and the outer ring wire inlet (113) is positioned between the center position of the coil panel (100) and the edge position of the coil panel (100);

the wire outlet comprises an inner ring wire outlet (112) and an outer ring wire outlet (114) which are arranged on the bracket body (11), the inner ring wire outlet (112) is located between the center of the coil panel (100) and the edge of the coil panel (100), and the outer ring wire outlet (114) is located on one side close to the edge of the coil panel (100).

10. Coil disc according to claim 9, wherein the inner ring incoming wire (311) leads from the inner ring incoming wire port (111) and extends to the outer ring incoming wire port (113) merging with an outer ring incoming wire (312) leading from the outer ring incoming wire port (113) to form the incoming wire (31);

the inner ring outgoing line (321) is led out from the inner ring outgoing line port (112), extends to the outer ring outgoing line port (114), and is combined with an outer ring outgoing line (322) led out from the outer ring outgoing line port (114) to form the outgoing line (32).

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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