Coil panel and cooking utensil
By setting a continuous spiral winding trough on the isolation bracket of the coil disk, the problem of cross-short circuit of the high-layer coil is solved, and the flatness and heating uniformity of the coil are improved.
Patent Information
- Application Number
- CN202421933075.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-09
AI Technical Summary
When the number of winding layers is more than double layers, the coils of different layers intersect with each other in the winding area are prone to short-circuiting, resulting in safety hazards.
An isolation bracket is adopted, with a first winding groove arranged in a continuous spiral shape on the first side, and a second winding groove is arranged on the second side, and the coil is wound along the distributed shape of these grooves to form a spiral first coil and a second coil to avoid jumping through the jumper area.
The flatness of the coil is improved, and the uneven magnetic field distribution caused by poor flatness is reduced, which in turn improves the uniformity of heating the pot and reduces the risk of short circuit.
Smart Images
Figure CN222996704U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of household appliances, and particularly relates to a coil disk and a cooking appliance. Background Art
[0002] Cooking appliances such as induction cookers have the advantages of fast heating, no open flame, safety and convenience, and are increasingly favored and recognized by consumers. When an induction cooker is working, it can use high-frequency alternating current to pass through a coil disk to generate a high-frequency changing magnetic field. The high-frequency changing magnetic field can generate eddy currents at the bottom of a metal cookware placed on the induction cooker to heat the food in the metal cookware.
[0003] The coil disk includes a coil and a wire groove bracket. The coil can be wound in the wire groove of the wire groove bracket to fix the coil through the wire groove bracket. The coil is generally formed by stranding multiple enameled wires. The multiple enameled wires can be wound in multiple layers in the wire groove of the wire groove bracket. In the related art, the coil grooves on the wire groove bracket are distributed in concentric circles. Therefore, during the process of winding the coil from the inner circle to the outer circle, there is a jumper area for the coil to pass through between two adjacent coil grooves on the coil bracket. The coil can jump from the winding area to the adjacent coil groove.
[0004] However, when the number of winding layers is more than two layers, the coils of different layers are prone to short-circuit phenomena when crossing each other in the winding area, thus easily causing potential safety hazards. Summary of the Utility Model
[0005] The present application provides a coil disk and a cooking appliance, which can solve the problem that the coils of different layers are prone to short-circuit phenomena when crossing each other in the winding area, thus easily causing potential safety hazards.
[0006] On the one hand, the present application provides a coil disk, which includes:
[0007] An isolation bracket, the isolation bracket has a first side and a second side facing away from each other in the thickness direction, a first wire groove is provided on the first side of the isolation bracket, the first wire groove is distributed in a continuous spiral shape from the center of the isolation bracket to the outside, a second wire groove is provided on the second side of the isolation bracket, and the second wire groove is distributed in a continuous spiral shape from the center of the isolation bracket to the outside;
[0008] A coil, the coil is wound in the first wire groove to form a first coil on the first side, and the coil is wound in the second wire groove to form a second coil on the second side.
[0009] The coil disk provided by the present application, since the first side of the isolation bracket is provided with a first winding groove distributed in a continuous spiral shape, during the coil winding process, the coil can be wound along the distribution shape of the first winding groove to form a spiral first coil in the first winding groove, so that there is no need to set a jumper area through which the coil can pass on the first winding groove. During the coil winding process, there is no need to jump through the jumper area, which is beneficial to improving the flatness of the first coil, reducing the uneven magnetic field distribution caused by poor flatness, and further reducing the possibility of affecting the heating uniformity of the cookware.
[0010] Moreover, in the embodiment of the present application, the second side of the isolation bracket may be provided with a second winding groove. The second winding groove may also be distributed in a continuous spiral shape. Therefore, there is no need to set a jumper area through which the coil can pass on the second winding groove. The coil can be wound in sequence along the distribution shape of the second winding groove to form a spiral second coil in the second winding groove, so that there is no need to jump through the jumper area during the coil winding process, which is beneficial to improving the flatness of the second coil.
[0011] In summary, in the embodiment of the present application, the first coil and the second coil with relatively high flatness can be formed through the first winding groove and the second winding groove of the isolation bracket, which is beneficial to improving the uniformity of the magnetic field distribution, thereby improving the heating uniformity of the cookware.
[0012] Moreover, in the embodiment of the present application, the coil can form the first coil and the second coil on the first side and the second side of the isolation bracket respectively. The isolation bracket can separate the first coil and the second coil, so that there is a single-layer first coil in the first winding groove and a single-layer second coil in the second winding groove. Thus, on the one hand, it can reduce the possibility of inter-turn short circuit and the risk of fire caused by having multiple layers of coils in the same winding groove. On the other hand, there is no need to set a jumper area on the isolation bracket, thereby reducing the possibility of short circuit caused by the intersection of coils in the jumper area.
[0013] According to an embodiment of the present application, the first coil and the second coil are wound by the same turn of wire harness to form the coil;
[0014] The coil has an introduction end and a lead-out end, and the introduction end and the lead-out end are close to the center of the isolation bracket, and the introduction end and the lead-out end are arranged at intervals.
[0015] In the embodiment of the present application, the first coil and the second coil can be wound by the same turn of wire harness, and the introduction end and the lead-out end of the coil are close to the center of the isolation bracket. With such a setting, when winding the coil, it first winds from the inside to the outside in the first winding groove, then turns over the isolation bracket, and then winds from the outside to the inside in the second winding groove. In this way, the coil can be turned at the edge of the isolation bracket, which can reduce the winding difficulty and is beneficial to improving the assembly efficiency.
[0016] According to one embodiment of the present application, the lead-in end and the lead-out end are spaced apart from each other.
[0017] In the embodiment of the present application, since the lead-in end and the lead-out end of the coil are close to the center of the isolation bracket, the lead-in end and the lead-out end can be arranged at intervals to reduce the possibility of the lead-in end and the lead-out end touching each other, causing a short circuit in the coil.
[0018] According to one embodiment of the present application, a turning opening is provided in an area near the outer edge of the isolation bracket, the turning opening connects the first winding groove and the second winding groove, and the coil can pass through the turning opening to enter the second winding groove.
[0019] In an embodiment of the present application, when the coil is wound in the first winding groove on the first side of the isolation bracket to the turning port, the coil can pass through the turning port to enter the second side of the isolation bracket. The coil can continue to be wound in the second winding groove on the second side of the isolation bracket, so that a first coil and a second coil can be formed on both sides of the isolation bracket through a set of wiring harnesses. On the one hand, the possibility of short circuit caused by two layers of first coils in the first winding groove or two layers of second coils in the second winding layer can be reduced. On the other hand, the winding process can also be simplified to improve assembly efficiency.
[0020] According to one embodiment of the present application, the first winding groove has a first outer groove body close to the outer edge of the isolation bracket, the second winding groove has a second outer groove body close to the outer edge of the isolation bracket, and the turning port runs through the first outer groove body and the second outer groove body.
[0021] In the embodiment of the present application, by providing a turning port, the coil does not need to be twisted inward for a certain distance along the radial direction of the isolation bracket at the turning port to enter the second outer groove body. On the one hand, this can reduce the possibility of short circuit caused by the twisting of the coil at the turning port. On the other hand, it can reduce the possibility of coil jumper causing flatness to be affected, thereby affecting the heating uniformity of the cookware.
[0022] According to one embodiment of the present application, along the radial direction of the isolation bracket, the first outer slot body and the second outer slot body are staggered.
[0023] In the embodiment of the present application, taking the example of the coil being wound from the first side of the isolation bracket, by arranging the first outer slot body and the second outer slot body to be staggered along the radial direction of the isolation bracket, when the coil is passed through the turning opening from the first side of the isolation bracket to the second side, the coil can directly enter the second outer slot body along the circumference of the first outer slot body. Therefore, it is not easy for the coil to jump wires when it enters the second side from the first side of the isolation bracket, thereby reducing the possibility of the coil crossing in the jumper area and causing a short circuit.
[0024] According to an embodiment of the present application, along the radial direction of the isolation bracket, the misalignment distance between the first outer groove body and the second outer groove body is greater than or equal to the width of the first outer groove body; or, the misalignment distance between the first outer groove body and the second outer groove body is greater than or equal to the width of the second outer groove body.
[0025] In the embodiment of the present application, if the misalignment distance between the first outer groove body and the second outer groove body is less than the width dimensions of the first outer groove body and the second outer groove body, when the coil enters the second side from the first side of the isolation bracket through the turning port, the coil needs to move inward along the radial direction of the isolation bracket by a certain distance before it can enter the second outer groove body. Therefore, it is easy to occur a jumper phenomenon, which affects the flatness of the second coil, and thus affects the uniformity of heating the cookware. By setting the misalignment distance between the first outer groove body and the second outer groove body along the radial direction of the isolation bracket to be greater than or equal to the widths of the first outer groove body and the second outer groove body, the misalignment distance can satisfy the passing of a group of wire harnesses. The coil can directly enter the second outer groove body from the first outer groove body through the turning port, thereby effectively solving the above technical problems.
[0026] According to an embodiment of the present application, the first winding groove includes a first inner groove body close to the center of the isolation bracket, the second winding groove includes a second inner groove body close to the center of the isolation bracket, and the first inner groove body and the second inner groove body are arranged in a misaligned manner.
[0027] When the number of turns of the first coil is the same as that of the second coil, since the second outer groove body of the second winding groove is located outside the first outer groove body of the first winding groove, the second inner groove body of the second winding groove can be located outside the first inner groove body of the first winding groove. Therefore, by arranging the first inner groove body and the second inner groove body in a misaligned manner, the lead-in end and the lead-out end of the coil can have a gap, thereby reducing the possibility of short circuit caused by the contact between the lead-in end and the lead-out end.
[0028] According to an embodiment of the present application, the winding direction of the coil in the first winding groove is the same as the winding direction of the coil in the second winding groove.
[0029] If the winding direction of the coil in the first winding groove is opposite to the winding direction of the coil in the second winding groove, the magnetic field generated by the first coil formed by the coil in the first winding groove is likely to cancel out the magnetic field generated by the second coil formed by the coil in the second winding groove, thereby easily affecting the heating efficiency of the cookware. Therefore, by making the winding direction of the coil in the first winding groove the same as the winding direction of the coil in the second winding groove, the above technical problems can be effectively solved, and the first coil and the second coil can jointly generate a magnetic field to improve the heating efficiency of the cookware.
[0030] According to an embodiment of the present application, the isolation bracket is provided with an inlet near the center, and the inlet has a wall body for hanging the coil.
[0031] In the embodiment of the present application, the coil can pass through the inlet and start winding in the first winding groove or the second winding groove. The leading end of the coil can be placed on the inlet. During the winding process of the coil, the wall body can prevent the leading end of the coil from moving together with the coil, thereby reducing the winding difficulty and improving the winding efficiency.
[0032] According to an embodiment of the present application, the first winding groove is distributed along an Archimedean spiral on the first side of the isolation bracket; and / or,
[0033] The second winding groove is distributed along an Archimedean spiral on the second side of the isolation bracket.
[0034] In the embodiment of the present application, the first winding groove is distributed along an Archimedean spiral on the first side of the isolation bracket, and a plurality of grooves evenly diffusing outward from the center of the isolation bracket can be formed. The distance between two adjacent grooves on the first winding groove can be constant. Therefore, when the coil is wound in the first winding groove, a uniformly distributed first coil can be formed, thereby providing a uniform magnetic field for the cookware.
[0035] Similarly, the second winding groove is distributed along an Archimedean spiral on the second side of the isolation bracket, and a plurality of grooves evenly diffusing outward from the center of the isolation bracket can be formed. The distance between two adjacent grooves on the second winding groove can be constant. Therefore, when the coil is wound in the second winding groove, a uniformly distributed second coil can be formed, thereby providing a uniform magnetic field for the cookware.
[0036] According to an embodiment of the present application, the coil disk includes a support frame for supporting the isolation bracket, and the support frame is detachably connected to the isolation bracket.
[0037] According to an embodiment of the present application, a first installation portion is provided on the support frame near the center of the isolation bracket, and the isolation bracket is provided with an installation opening through which the first installation portion can pass;
[0038] A first engaging portion is provided on the outer side wall of the first installation portion, and a second engaging portion is provided on the inner wall of the installation opening, and the first engaging portion and the second engaging portion are engaged with each other.
[0039] In the embodiment of the present application, the first engaging portion and the second engaging portion can be engaged with each other during the installation of the isolation bracket on the support frame, so that the isolation bracket and the support frame are not easily separated along the thickness direction of the isolation bracket.
[0040] According to an embodiment of the present application, a second mounting portion is provided in a region of the support frame close to the outer edge of the isolation bracket, a third engaging portion is provided on the outer edge of the isolation bracket, and a slot cooperating with the third engaging portion is provided on the second mounting portion.
[0041] In the embodiment of the present application, during the installation of the isolation bracket on the support frame, the third engaging portion can be engaged in the slot, so that the isolation bracket and the support frame are not easily separated along the thickness direction of the isolation bracket.
[0042] On the other hand, a cooking appliance provided by the present application includes:
[0043] A panel for supporting a cooking pot;
[0044] A housing, the panel is connected to the housing and forms a receiving cavity;
[0045] The coil disk according to any one of the above embodiments, the coil disk is located in the receiving cavity.
[0046] In addition to the technical problems solved by the embodiments of the present invention described above, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features of the technical solutions, other technical problems that can be solved by the coil disk and the cooking appliance provided by the embodiments of the present invention, other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS
[0047] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.
[0048] Figure 1 A top view structural schematic diagram of a coil disk according to an embodiment of the present application;
[0049] Figure 2 An exploded structural schematic diagram of a coil disk according to an embodiment of the present application;
[0050] Figure 3 A partial exploded structural schematic diagram of a coil disk according to an embodiment of the present application;
[0051] Figure 4 A cross-sectional structural schematic diagram of an isolation bracket and a support frame connected according to an embodiment of the present application;
[0052] Figure 5 A partial structural schematic diagram of a coil disk according to an embodiment of the present application;
[0053] Figure 6 For Figure 3 An enlarged schematic diagram of part A in
[0054] Figure 7 Another partial structural schematic diagram of the coil disk according to an embodiment of the present application;
[0055] Figure 8 Is Figure 4 The enlarged schematic diagram at position B in
[0056] Figure 9 Another cross-sectional structural schematic diagram at another position where the isolation bracket is connected to the support bracket according to an embodiment of the present application;
[0057] Figure 10 Is Figure 9 The enlarged schematic diagram at position C in
[0058] Figure 11 The lateral cross-sectional structural schematic diagram where the isolation bracket is connected to the support bracket according to an embodiment of the present application;
[0059] Figure 12 Is Figure 3 The enlarged schematic diagram at position D in
[0060] Explanation of reference numerals:
[0061] 100 - Coil disk;
[0062] 110 - Isolation bracket; 110a - First side; 110b - Second side; 110c - Turning port; 110d - Inlet port; 110e - Mounting port;
[0063] 111 - First winding groove; 1111 - First outer groove body; 1112 - First inner groove body;
[0064] 112 - Second winding groove; 1121 - Second outer groove body; 1122 - Second inner groove body;
[0065] 113 - Partition; 114 - Wall body; 115 - Second engaging portion; 116 - Third engaging portion;
[0066] 120 - Coil; 120a - Lead-in end; 120b - Lead-out end; 121 - First coil; 122 - Second coil;
[0067] 130 - Support bracket; 131 - First mounting portion; 1311 - First engaging portion; 132 - Second mounting portion; 1321 - Card slot;
[0068] 140 - Magnetic strip assembly;
[0069] X - Thickness direction.
[0070] Through the above-mentioned drawings, specific embodiments of the present application have been shown, and will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by reference to specific embodiments. Detailed Description of the Embodiments
[0071] Here, exemplary embodiments will be described in detail, and examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.
[0072] Induction cookers and the like are commonly used cooking appliances. The cooking appliance includes a panel, a housing, and a coil disk. The panel and the housing can enclose a relatively airtight cavity for shielding the live components such as the internal power board, control board, and coil disk during operation. Among them, the control board is electrically connected to the coil disk to control the opening and closing of the coil disk through the control board. The coil disk can be an electromagnetic coil. When working, a high-frequency current passing through the coil disk can generate countless closed magnetic field forces. The magnetic force lines cutting the cookware can generate countless small eddy currents to heat the cookware placed on the panel. When in use, the cookware is placed on the panel of the cooking appliance. The cooking appliance can be used to cook the ingredients in the cookware.
[0073] The coil disk includes a coil and a wire groove bracket. The coil can be wound in the wire groove of the wire groove bracket to fix the coil through the wire groove bracket. The coil is generally formed by stranding multiple enameled wires. The multiple enameled wires can be wound in multiple layers in the wire groove of the wire groove bracket. In the related art, the coil grooves on the wire groove bracket are distributed in concentric circles. Therefore, during the process of winding the coil from the inner circle to the outer circle, there is a jumper area for the coil to pass through between two adjacent coil grooves on the coil bracket. The coil can jump from the winding area to the adjacent coil groove.
[0074] However, when the number of winding layers is more than two layers, the coils of different layers cross each other in the winding area, which is likely to cause a short - circuit phenomenon, thus easily leading to potential safety hazards. Moreover, the flatness of the coils in the jumper area is relatively poor. Especially when the number of winding layers is more than two layers, the coils of different layers cross each other in the winding area, making the problem of poor flatness of the coils in the jumper area more obvious. It is easy to understand that if the flatness of the coils is poor, the distances between different positions on the coils and the cookware are different. Therefore, it is likely to affect the uniformity of the magnetic field distribution, thereby affecting the uniformity of heating the cookware.
[0075] Based on the above - mentioned technical problems, the applicant has improved the structure of the existing coil disk. In the embodiment of the present application, since the first side of the isolation bracket is provided with a first winding groove distributed in a continuous spiral shape, during the coil winding process, the coil can be wound along the distribution shape of the first winding groove to form a spiral - shaped first coil in the first winding groove. Thus, there is no need to set a jumper area through which the coil can pass on the first winding groove. During the coil winding process, there is no need to jump through the jumper area, which is beneficial to improving the flatness of the first coil, reducing the uneven magnetic field distribution caused by poor flatness, and further reducing the possibility of affecting the uniformity of heating the cookware.
[0076] Moreover, in the embodiment of the present application, the second side of the isolation bracket can be provided with a second winding groove. The second winding groove can also be distributed in a continuous spiral shape. Therefore, there is no need to set a jumper area through which the coil can pass on the second winding groove. The coil can be wound successively along the distribution shape of the second winding groove to form a spiral - shaped second coil in the second winding groove. Thus, during the coil winding process, there is no need to jump through the jumper area, which is beneficial to improving the flatness of the second coil. Therefore, the embodiment of the present application can form the first coil and the second coil with relatively high flatness, which is beneficial to improving the uniformity of the magnetic field distribution, and thus improving the uniformity of heating the cookware.
[0077] Moreover, in the embodiment of the present application, there may be no need to set a jumper area on the isolation bracket, and the coil may not need to jump to enter the adjacent winding groove, thereby reducing the possibility of short - circuit phenomenon easily occurring due to the crossing of multi - layer coils in the jumper area.
[0078] The coil disk 100 and the cooking appliance provided by the present application will be described below with reference to the accompanying drawings and in combination with specific embodiments.
[0079] See Figures 1 to 4 As shown, the coil disk 100 of the embodiment of the present application may include an isolation bracket 110 and a coil 120.
[0080] The isolation bracket 110 has a first side 110a and a second side 110b facing away from each other in the thickness direction X. The first side 110a of the isolation bracket 110 is provided with a first wire winding groove 111, and the first wire winding groove 111 is distributed in a continuous spiral shape outward from the center of the isolation bracket 110. The second side 110b of the isolation bracket 110 is provided with a second wire winding groove 112, and the second wire winding groove 112 is distributed in a continuous spiral shape outward from the center of the isolation bracket 110.
[0081] When the coil 120 is wound around the first wire winding groove 111, a first coil 121 can be formed on the first side 110a of the isolation bracket 110. When the coil 120 is wound around the second wire winding groove 112, a second coil 122 can be formed on the second side 110b of the isolation bracket 110.
[0082] Taking the first wire winding groove 111 as an example, in the embodiment of the present application, along the radial direction outward of the first wire winding groove 111, the first wire winding groove 111 may include a plurality of groove bodies with gradually increasing diameters. Among them, each groove body is a non-closed annular structure, and natural transition and connection can be made between adjacent two groove bodies. In other words, between adjacent two groove bodies, the end of one groove body can be connected to the beginning of the other groove body, so that the first coil 121 can transition from one groove body to the adjacent groove body, and thus there is no need to set a jumper area on the side wall of the groove body, which is beneficial to reducing the possibility of short circuit easily caused by the intersection of the coil 120 in the jumper area, and is also beneficial to improving the flatness of the first coil 121 in the first wire winding groove 111.
[0083] Moreover, in the embodiment of the present application, the coil 120 can form the first coil 121 and the second coil 122 on the first side 110a and the second side 110b of the isolation bracket 110 respectively, and the isolation bracket 110 can separate the first coil 121 and the second coil 122, so that there is a single-layer first coil 121 in the first wire winding groove 111 and a single-layer second coil 122 in the second wire winding groove 112, thereby reducing the possibility of inter-turn short circuit and the risk of fire caused by having multiple layers of the coil 120 in the same wire winding groove.
[0084] In some examples, the coil 120 can start winding around the first wire winding groove 111 from the first side 110a of the isolation bracket 110, and then enter the second side 110b of the isolation bracket 110 and wind around the second wire winding groove 112. Or, the coil 120 can also start winding around the second wire winding groove 112 from the second side 110b of the isolation bracket 110, and then enter the first side 110a of the isolation bracket 110 and wind around the first wire winding groove 111. It is not specifically limited in the embodiment of the present application. The embodiment of the present application will be described by taking the coil 120 winding around the first wire winding groove 111 first as an example.
[0085] In some examples, the isolation bracket 110 can be made of an insulating and flame-retardant material.
[0086] In some examples, the isolation bracket 110 can be processed by an injection molding process to form an integral isolation bracket 110. The wall thickness between two adjacent slots can be set according to the requirements of the demolding thickness. When the size of the coil disk 100 is relatively large, the wall thickness can be increased accordingly. For example, in the embodiments of the present application, the wall thickness can be 0.8 mm.
[0087] In some implementable ways, the first coil 121 and the second coil 122 in the embodiments of the present application can be wound by the same turn of wire harness to form the coil 120. The coil 120 has an introduction end 120a and a lead-out end 120b. The introduction end 120a can be introduced by the first coil 121. The lead-out end 120b can be led out by the second coil 122. The introduction end 120a and the lead-out end 120b can be used for electrical connection with the circuit board.
[0088] In the embodiments of the present application, the first coil 121 and the second coil 122 can be wound by the same turn of wire harness to simplify the winding process and improve the assembly efficiency.
[0089] When the introduction end 120a and the lead-out end 120b are close to the edge of the isolation bracket 110, the coil 120 is wound from the outside to the inside along the radial direction of the isolation bracket 110 on the first side 110a of the isolation bracket 110, and then is wound from the inside to the outside along the radial direction of the isolation bracket 110 on the second side 110b of the isolation bracket 110. Wound in this way, the coil 120 turns at the center of the isolation bracket 110. When the coil is wound by the same turn of wire harness, it is not easy to turn in this way, and the winding difficulty is high.
[0090] Therefore, as shown in Figure 5 shown, the introduction end 120a and the lead-out end 120b can be close to the center of the isolation bracket 110. The coil 120 is wound from the inside to the outside along the radial direction of the isolation bracket 110 on the first side 110a of the isolation bracket 110, and then is wound from the outside to the inside along the radial direction of the isolation bracket 110 on the second side 110b of the isolation bracket 110. Wound in this way, the coil 120 turns at the edge of the isolation bracket 110. When the coil is wound by the same turn of wire harness, it is easy to turn in this way, and the winding difficulty is low.
[0091] The winding process of the coil 120 can be as follows. The coil 120 starts from the center of the isolation bracket 110 and is wound from the inside to the outside along the radial direction of the isolation bracket 110 to form the first coil 121 in the first winding groove 111. When winding near the edge of the isolation bracket 110, the isolation bracket 110 can be flipped to the second side 110b, and the coil 120 can enter the second winding groove 112 and be wound from the outside to the inside along the radial direction of the isolation bracket 110 to form the second coil 122 in the second winding groove 112. The lead-out end 120b of the coil 120 is led out from the area near the center of the isolation bracket 110.
[0092] It should be noted that in the embodiments of the present application, the fact that the first coil 121 and the second coil 122 are wound by the same turn of wire harness means that the first coil 121 and the second coil 122 are of an integral structure. The coil 120 can be wound on the first winding groove 111 and the second winding groove 112 by the same turn of wire harness to form the first coil 121 and the second coil 122. The first coil 121 and the second coil 122 can be insulated and isolated by the isolation bracket 110.
[0093] In some examples, an insulating sleeve can be provided on a part of the coil 120 near the lead-in end 120a and the lead-out end 120b. In the embodiments of the present application, since both the lead-in end 120a and the lead-out end 120b of the coil 120 are close to the center of the isolation bracket 110, the length of the insulating sleeve covering the coil 120 can be set relatively long to reduce the possibility that the lead-in end 120a or the lead-out end 120b contacts the inner ring of the first coil 121 or the second coil 122, resulting in a short circuit of the coil 120 and even potential safety hazards.
[0094] In some realizable ways, as shown in Figure 5 the lead-in end 120a and the lead-out end 120b of the embodiments of the present application can be arranged at intervals.
[0095] In the embodiments of the present application, since both the lead-in end 120a and the lead-out end 120b of the coil 120 are close to the center of the isolation bracket 110, the lead-in end 120a and the lead-out end 120b can be arranged at intervals to reduce the possibility that the lead-in end 120a and the lead-out end 120b come into contact, resulting in a short circuit of the coil 120.
[0096] In some examples, the lead-in end 120a and the lead-out end 120b can have a circumferential spacing.
[0097] Exemplarily, the lead-in end 120a and the lead-out end 120b can have an included angle of at least 30° relative to the center of the isolation bracket 110, so that the lead-in end 120a and the lead-out end 120b form a circumferential spacing, thereby making it difficult for the lead-in end 120a and the lead-out end 120b to be electrically connected.
[0098] In some feasible embodiments, referring to Figure 6 and Figure 7 As shown, in the isolation bracket 110 of the embodiment of the present application, a turning port 110c may be provided in a region near the outer edge. The turning port 110c may communicate the first winding groove 111 and the second winding groove 112, and the coil 120 may pass through the turning port 110c to enter the second winding groove 112.
[0099] In the embodiment of the present application, when the coil 120 is wound to the turning port 110c in the first winding groove 111 on the first side 110a of the isolation bracket 110, the coil 120 may pass through the turning port 110c to enter the second side 110b of the isolation bracket 110. The coil 120 may continue to be wound in the second winding groove 112 on the second side 110b of the isolation bracket 110, so that the first coil 121 and the second coil 122 may be respectively formed on both sides of the isolation bracket 110 by a set of wire harnesses. On the one hand, it is possible to reduce the possibility of short - circuit caused by two layers of the first coil 121 in the first winding groove 111 or two layers of the second coil 122 in the second winding layer. On the other hand, the winding process can also be simplified and the assembly efficiency can be improved.
[0100] In some feasible embodiments, referring to Figure 7 and Figure 8 As shown, the first winding groove 111 of the embodiment of the present application may have a first outer groove body 1111 near the outer edge of the isolation bracket 110. The second winding groove 112 may have a second outer groove body 1121 near the outer edge of the isolation bracket 110. The turning port 110c may penetrate through the first outer groove body 1111 and the second outer groove body 1121.
[0101] By providing the turning port 110c, the coil 120 does not need to be twisted radially inward along the isolation bracket 110 for a certain distance at the turning port 110c to enter the second outer groove body 1121. Thus, on the one hand, it is possible to reduce the possibility of short - circuit caused by the coils 120 crossing each other in the winding region, which may pose a safety hazard. On the other hand, it is possible to reduce the possibility that the coil 120 jumps the line, which may affect the flatness and further affect the heating uniformity of the cookware.
[0102] In some feasible embodiments, referring to Figure 7 and Figure 8 As shown, along the radial direction of the isolation bracket 110, the first outer groove body 1111 and the second outer groove body 1121 are arranged in a staggered manner.
[0103] It should be noted that the staggered arrangement may mean that, along the thickness direction X of the isolation bracket 110, the first outer groove body 1111 and the second outer groove body 1121 do not correspond to each other.
[0104] In the embodiments of the present application, taking the example that the coil 120 starts winding from the first side 110a of the isolation bracket 110, by arranging the first outer groove body 1111 and the second outer groove body 1121 to be radially misaligned along the isolation bracket 110, when the coil 120 passes through the turning port 110c from the first side 110a of the isolation bracket 110 to the second side 110b, the coil 120 can directly enter the second outer groove body 1121 along the circumferential direction of the first outer groove body 1111. Therefore, the coil 120 is not likely to jump wires during the process of entering the second side 110b from the first side 110a of the isolation bracket 110. In some examples, the isolation bracket 110 may include a partition 113. The turning port 110c may be arranged on the partition 113. The first winding groove 111 and the second winding groove 112 may be located on both sides of the partition 113 respectively. The first outer groove body 1111 and the second outer groove body 1121 are not symmetrical with respect to the partition 113.
[0105] In some examples, since the first winding groove 111 is distributed in a continuous spiral shape, when the coil 120 starts winding from the first side 110a, along the radial direction of the isolation bracket 110, the second outer groove body 1121 of the second winding groove 112 can be located outside the first outer groove body 1111 of the first winding groove 111, so that the coil 120 can freely transition from the first outer groove body 1111 to the second outer groove body 1121 through the turning port 110c.
[0106] In some examples, as shown in Figure 9 and Figure 10 the first winding groove 111 may include a first inner groove body 1112 close to the center of the isolation bracket 110. The second winding groove 112 may include a second inner groove body 1122 close to the center of the isolation bracket 110.
[0107] When the number of turns of the first coil 121 is the same as that of the second coil 122, since the second outer groove body 1121 of the second winding groove 112 is located outside the first outer groove body 1111 of the first winding groove 111, the second inner groove body 1122 of the second winding groove 112 can be located outside the first inner groove body 1112 of the first winding groove 111. Therefore, by arranging the first inner groove body 1112 and the second inner groove body 1122 in a misaligned manner, the leading end 120a and the trailing end 120b of the coil 120 can have a gap, thereby reducing the possibility of short - circuit caused by the leading end 120a and the trailing end 120b touching each other.
[0108] In some feasible ways, as shown in Figure 11As shown in the figure, along the radial direction of the isolation bracket 110, the dislocation distance between the first outer groove body 1111 and the second outer groove body 1121 can be greater than or equal to the width of the first outer groove body 1111, or the dislocation distance between the first outer groove body 1111 and the second outer groove body 1121 can be greater than or equal to the width of the second outer groove body 1121.
[0109] In the embodiment of the present application, the diameter of the coil 120 can be slightly larger than the width dimensions of the first outer groove body 1111 and the second outer groove body 1121, so as to fix the coil 120 through the inner wall of the first outer groove body 1111 or the inner wall of the second outer groove body 1121. If the dislocation distance between the first outer groove body 1111 and the second outer groove body 1121 is less than the width dimensions of the first outer groove body 1111 and the second outer groove body 1121, when the coil 120 is flipped to the other side on the isolation bracket 110, the coil 120 needs to move a certain distance inward along the radial direction of the isolation bracket 110 to make the coil 120 enter the second outer groove body 1121. Therefore, it is easy to occur the phenomenon of jumper wire, which affects the flatness of the second coil 122, and thus affects the uniformity of heating the cookware.
[0110] Specifically, referring to Figure 8 As shown in the figure, when the coil 120 enters the second side 110b from the first side 110a of the isolation bracket 110 through the turning port 110c, by setting the dislocation distance between the first outer groove body 1111 and the second outer groove body 1121 along the radial direction of the isolation bracket 110 to be greater than or equal to the widths of the first outer groove body 1111 and the second outer groove body 1121, a set of wire harnesses can pass through. The coil 120 can directly enter the second outer groove body 1121 from the first outer groove body 1111 through the turning port 110c, thereby effectively solving the above technical problems.
[0111] In some examples, the widths of the first outer groove body 1111 and the second outer groove body 1121 can be the same.
[0112] In some realizable ways, the winding direction of the coil 120 in the first winding groove 111 is the same as the winding direction of the coil 120 in the second winding groove 112.
[0113] In the embodiments of the present application, if the winding direction of the coil 120 in the first winding groove 111 is opposite to the winding direction of the coil 120 in the second winding groove 112, the magnetic field generated by the first coil 121 formed by the coil 120 in the first winding groove 111 is likely to cancel out the magnetic field generated by the second coil 122 formed by the coil 120 in the second winding groove 112, thereby easily affecting the heating efficiency of the cookware. Therefore, by making the winding direction of the coil 120 in the first winding groove 111 the same as the winding direction of the coil 120 in the second winding groove 112, the above technical problems can be effectively solved, and the first coil 121 and the second coil 122 can jointly generate a magnetic field to improve the heating efficiency of the cookware.
[0114] In some examples, the coil 120 can be wound around the first winding groove 111 in a clockwise direction, and the coil 120 can be wound around the second winding groove 112 in a clockwise direction. Alternatively, the coil 120 can be wound around the first winding groove 111 in a counterclockwise direction, and the coil 120 can be wound around the second winding groove 112 in a counterclockwise direction, which is not limited in the embodiments of the present application.
[0115] In some realizable ways, as shown in Figure 12 the isolation bracket 110 of the embodiments of the present application is provided with an inlet 110d near the center. The inlet 110d can have a wall 114 for hanging the coil 120.
[0116] In the embodiments of the present application, the coil 120 can pass through the inlet 110d and start winding in the first winding groove 111 or the second winding groove 112. The leading end 120a or the trailing end 120b of the coil 120 can be bent and placed on the inlet 110d. During the winding process of the coil 120, the wall 114 can prevent the leading end 120a or the trailing end 120b of the coil 120 from moving with the coil 120, thereby reducing the winding difficulty and improving the winding efficiency.
[0117] In some realizable ways, the first winding groove 111 can be distributed along an Archimedean spiral on the first side 110a of the isolation bracket 110. The second winding groove 112 can be distributed along an Archimedean spiral on the second side 110b of the isolation bracket 110.
[0118] In the embodiments of the present application, the first winding groove 111 is distributed along an Archimedean spiral on the first side 110a of the isolation bracket 110, and a plurality of grooves evenly spreading outwards from the center of the isolation bracket 110 can be formed. The distance between two adjacent grooves on the first winding groove 111 can be constant. Therefore, when the coil 120 is wound in the first winding groove 111, a uniformly distributed first coil 121 can be formed, thereby providing a uniform magnetic field for the cookware.
[0119] Similarly, the second winding groove 112 is distributed in an Archimedean spiral on the second side 110b of the isolation bracket 110, and a plurality of groove bodies uniformly diffusing outward from the center of the isolation bracket 110 can be formed. The distance between two adjacent groove bodies on the second winding groove 112 can be constant. Therefore, when the coil 120 is wound in the second winding groove 112, a uniformly distributed second coil 122 can be formed, so as to provide a uniform magnetic field for the cookware.
[0120] In some implementable ways, referring to Figure 2 as shown, the coil disk 100 may include a support frame 130. The support frame 130 can be used to support the isolation bracket 110.
[0121] In the embodiment of the present application, after the coil 120 is wound around the isolation bracket 110, the isolation bracket 110 can be fixed on the support frame 130. The isolation bracket 110 and the support frame 130 can be detachably connected. For example, the isolation bracket 110 and the support frame 130 can be snap-connected.
[0122] In some examples, referring to Figure 10 as shown, a first installation portion 131 is provided in a region of the support frame 130 close to the center of the isolation bracket 110. An installation opening 110e through which the first installation portion 131 can pass is provided in a region of the isolation bracket 110 close to its own center. A first engaging portion 1311 may be provided on the outer sidewall of the first installation portion 131, and a second engaging portion 115 may be provided on the inner wall of the installation opening 110e. During the process of installing the isolation bracket 110 on the support frame 130, the first engaging portion 1311 and the second engaging portion 115 can be engaged with each other, so that the isolation bracket 110 and the support frame 130 are not easily separated along the thickness direction X of the isolation bracket 110.
[0123] Among them, the number of the first engaging portion 1311 and the second engaging portion 115 can be matched. The number of the first engaging portion 1311 and the second engaging portion 115 can be set according to the size of the coil 120. For example, the number of the first engaging portion 1311 and the second engaging portion 115 can be at least six.
[0124] In some examples, referring to Figure 8 as shown, a second installation portion 132 may be provided in a region of the support frame 130 close to the outer edge of the isolation bracket 110. A card slot 1321 is provided on the second installation portion 132. A third engaging portion 116 that can cooperate with the card slot 1321 is provided on the outer edge of the isolation bracket 110. During the process of installing the isolation bracket 110 on the support frame 130, the third engaging portion 116 can be engaged in the card slot 1321, so that the isolation bracket 110 and the support frame 130 are not easily separated along the thickness direction X of the isolation bracket 110.
[0125] Among them, the number of the third engaging portions 116 and the card slots 1321 can be matched. The number of the third engaging portions 116 and the card slots 1321 can be set according to the size of the coil 120. For example, the number of the third engaging portions 116 and the card slots 1321 can be at least six.
[0126] In some implementable ways, referring to Figure 2 as shown, the coil disk 100 may further include a magnetic strip assembly 140. The magnetic strip assembly 140 may be disposed on the support frame 130.
[0127] The magnetic strip assembly 140 can be used to concentrate the magnetic lines of force generated by the coil disk 100 so that the magnetic lines of force can act on the cookware, and can also prevent the magnetic lines of force from diffusing in the opposite direction of the cookware, reducing the possibility of reverse heating.
[0128] In some examples, the magnetic strip assembly 140 may include at least one of an "L"-shaped magnetic strip and an "I"-shaped magnetic strip.
[0129] The embodiment of the present application further provides a cooking appliance, which may include a panel, a housing, and the coil disk 100 in any of the above embodiments. The panel can be used to support the cookware. A relatively closed accommodation cavity may be formed between the panel and the housing for accommodating the coil disk 100 and structures such as a circuit board.
[0130] It should be noted here that the numerical values and numerical ranges involved in the present application are approximate values. Affected by the manufacturing process, there may be a certain range of errors, which can be considered negligible by those skilled in the art.
[0131] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection or an indirect connection through an intermediate medium, and may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.
[0132] In the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "top end", "bottom end", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "axial", "circumferential", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated position or component must have a specific orientation, be constructed and operated in a specific manner, and therefore cannot be understood as a limitation to the present invention.
[0133] The devices or elements referred to in the embodiments of the present application or implied must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically and precisely defined.
[0134] In the description of the specification, claims and the above drawings of the embodiments of the present application, the terms "first", "second", "third", "fourth", etc. (if any) are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.
[0135] In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0136] The term "a plurality of" herein refers to two or more. The term "and / or" herein merely describes the association relationship of associated objects and indicates that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after; in a formula, the character " / " represents a "division" relationship between the associated objects before and after.
[0137] It can be understood that in the embodiments of the present application, the various numerical numbers involved are only for the convenience of description and do not limit the scope of the embodiments of the present application.
[0138] It can be understood that in the embodiments of the present application, the magnitude of the sequence numbers of the above processes does not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
Claims
1. A coil disk (100), characterized in that: include: An isolation bracket (110), the isolation bracket (110) having a first side (110a) and a second side (110b) opposite to each other along a thickness direction (X), the first side (110a) of the isolation bracket (110) being provided with a first winding groove (111), the first winding groove (111) being distributed in a continuous spiral shape outward from the center of the isolation bracket (110), the second side (110b) of the isolation bracket (110) being provided with a second winding groove (112), the second winding groove (112) being distributed in a continuous spiral shape outward from the center of the isolation bracket (110); A coil (120), wherein the coil (120) is wound in the first winding groove (111) to form a first coil (121) on the first side (110a), and the coil (120) is wound in the second winding groove (112) to form a second coil (122) on the second side (110b).
2. The coil disk (100) according to claim 1, characterized in that The first coil (121) and the second coil (122) are wound by the same turn wire bundle to form the coil (120); The coil (120) has an introduction end (120a) and an extraction end (120b), wherein the introduction end (120a) and the extraction end (120b) are close to the center of the isolation bracket (110), and the introduction end (120a) and the extraction end (120b) are arranged at intervals.
3. The coil disk (100) according to claim 2, characterized in that A turning opening (110c) is provided in an area close to the outer edge of the isolation bracket (110); the turning opening (110c) is connected to the first winding groove (111) and the second winding groove (112); and the coil (120) can pass through the turning opening (110c) to enter the second winding groove (112).
4. The coil disk (100) according to claim 3, characterized in that The first winding groove (111) has a first outer groove body (1111) close to the outer edge of the isolation bracket (110), the second winding groove (112) has a second outer groove body (1121) close to the outer edge of the isolation bracket (110), and the turning port (110c) passes through the first outer groove body (1111) and the second outer groove body (1121).
5. The coil disk (100) according to claim 4, characterized in that Along the radial direction of the isolation bracket (110), the first outer tank body (1111) and the second outer tank body (1121) are arranged in a staggered manner.
6. The coil disk (100) according to claim 5, characterized in that Along the radial direction of the isolation bracket (110), the offset distance between the first outer trough body (1111) and the second outer trough body (1121) is greater than or equal to the width of the first outer trough body (1111); or, the offset distance between the first outer trough body (1111) and the second outer trough body (1121) is greater than or equal to the width of the second outer trough body (1121).
7. The coil disk (100) according to claim 5, characterized in that The first winding groove (111) comprises a first inner groove body (1112) close to the center of the isolation bracket (110), and the second winding groove (112) comprises a second inner groove body (1122) close to the center of the isolation bracket (110), and the first inner groove body (1112) and the second inner groove body (1122) are arranged in a staggered manner.
8. The coil disk (100) according to any one of claims 1 to 7, characterized in that: The winding direction of the coil (120) in the first winding groove (111) is the same as the winding direction of the coil (120) in the second winding groove (112).
9. The coil disk (100) according to any one of claims 1 to 7, characterized in that: The isolation bracket (110) is provided with a wire inlet (110d) close to the center, and the wire inlet (110d) has a wall (114) on which the coil (120) can be hung.
10. The coil disk (100) according to any one of claims 1 to 7, characterized in that: The first winding groove (111) is distributed on the first side (110a) of the isolation bracket (110) along the Archimedean spiral; and / or, The second winding grooves (112) are distributed along the Archimedean spiral on the second side (110b) of the isolation bracket (110).
11. The coil disk (100) according to any one of claims 1 to 7, characterized in that: The coil disk (100) comprises a support frame (130) capable of supporting the isolation frame (110); A first mounting portion (131) is provided on the support frame (130) near the center of the isolation bracket (110), and the isolation bracket (110) is provided with a mounting opening (110e) through which the first mounting portion (131) can pass; The outer wall of the first mounting portion (131) is provided with a first engaging portion (1311), and the inner wall of the mounting opening (110e) is provided with a second engaging portion (115), and the first engaging portion (1311) and the second engaging portion (115) are engaged with each other.
12. The coil disk (100) according to claim 11, characterized in that The support frame (130) is provided with a second mounting portion (132) in an area close to the outer edge of the isolation bracket (110), the outer edge of the isolation bracket (110) is provided with a third locking portion (116), and the second mounting portion (132) is provided with a locking groove (1321) that matches the third locking portion (116).
13. A cooking utensil, characterized in that: include: A panel for supporting the pot; A housing, wherein the panel is connected to the housing to form a receiving cavity; The coil disk (100) according to any one of claims 1 to 12, wherein the coil disk (100) is located in the accommodating cavity.