Coil pan assembly and cooking utensil
By designing a coil disk assembly with multiple second coil windings, using the method of independently controlling the current direction, the heating effect of the cooker is achieved in multiple forms, and the limitations of single form heating in the prior art are solved.
Patent Information
- Application Number
- CN202420604465.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-03-26
AI Technical Summary
The existing coil plates can only form a heating scenario in which a single shape area of the pot is not able to meet the heating needs of multiple pot shapes.
A coil disk assembly is designed, including a mounting bracket, a first coil winding and a plurality of second coil windings. By independently controlling the current direction of the second coil winding, a magnetic field area of various forms is formed, thereby achieving a heating effect of various forms of the pot.
Through this design, the coil disk assembly can form heating areas of at least two forms on the pot, solving the limitations of single form heating in the prior art and improving the flexibility and efficiency of electromagnetic heating.
Smart Images
Figure CN222706660U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic heating, in particular to a coil disk component and a cooking utensil. Background Art
[0002] IH heating uses a coil disk as a magnetic field providing component. It generates a heating current through the coupling effect of the magnetic field on the pot. The heating current acts on the cooking pot to generate heat. Since the IH heating induction cooker uses electromagnetic heating, its thermal efficiency is much higher than that of traditional open flames. Therefore, induction cookers have always been a popular cooking utensil among modern people.
[0003] The coil disk solution of the prior art solution adopts a single or multiple circular excitation coil groups for winding, and the heating effect of the electromagnetic heating on the cookware is manifested as multiple independent small rings. The existing coil disk excitation coil winding solution can only form a heating scene of a single shape area for the cookware. Utility Model Content
[0004] The main purpose of the utility model is to provide a coil disk assembly and a cooking utensil, aiming to solve the problem that the existing coil disk can only form a heating scene of a single shape area for the cookware.
[0005] In order to achieve the above object, the utility model provides a coil disk assembly, the coil disk assembly comprising:
[0006] Mounting bracket;
[0007] a first coil winding, disposed on the mounting bracket, and having a plurality of first sides; and
[0008] A plurality of second coil windings are arranged on the mounting bracket and located outside the first coil winding. The plurality of second coil windings are arranged corresponding to the plurality of first sides of the first coil winding, and each of the second coil windings has a second side corresponding to the first side of the first coil winding. The second side of each of the second coil windings is arranged in parallel with the first side corresponding to the first coil winding, and the plurality of second coil windings are arranged in parallel with the first coil winding so as to be independently controlled.
[0009] Optionally, the first side is arranged in a straight line, and correspondingly, the second side is arranged in a straight line.
[0010] Optionally, the first side edge and the second side edge are arranged in parallel.
[0011] Optionally, each of the first sides is correspondingly provided with at least one of the second coil windings.
[0012] Optionally, adjacent first side edges are connected by a curved transition section.
[0013] Optionally, the number of the first sides is greater than or equal to 3.
[0014] Optionally, the second coil winding is arranged in a racetrack shape, a triangle shape, or a square shape.
[0015] Optionally, the mounting bracket is arranged in a square shape.
[0016] The utility model also provides a cooking utensil, the cooking utensil comprising a coil disk assembly, the coil disk assembly comprising:
[0017] Mounting bracket;
[0018] a first coil winding, disposed on the mounting bracket, and having a plurality of first sides; and
[0019] A plurality of second coil windings are arranged on the mounting bracket and located outside the first coil winding. The plurality of second coil windings are arranged corresponding to the plurality of first sides of the first coil winding, and each of the second coil windings has a second side corresponding to the first side of the first coil winding. The second side of each of the second coil windings is arranged in parallel with the first side corresponding to the first coil winding, and the plurality of second coil windings are arranged in parallel with the first coil winding so as to be independently controlled.
[0020] Optionally, the cooking appliance further comprises a control device, wherein the control device is electrically connected to the first coil winding and the plurality of second coil windings, and is used for controlling the operation of the first coil winding and the plurality of second coil windings.
[0021] Optionally, the cooking utensil comprises an induction cooker.
[0022] In the technical solution provided by the utility model, when the first coil winding and the plurality of second coil windings are powered on and working, when the current flows through the plurality of first sides of the first coil winding in the same direction as the current flows through the second sides of each of the second coil windings, a relatively strong magnetic field region is formed near the region where the corresponding first sides and second sides are located, and the first coil winding is provided with a plurality of first sides, so that a magnetic field reinforcement region similar in shape to the first coil winding can be formed, so that the electromagnetic heating effect of the region on the cookware is obvious; when the current flows through the plurality of first sides of the first coil winding When the current direction is opposite to the current flowing through the second side of each second coil winding, a weaker magnetic field area will be formed near the area where the corresponding first side and second side are located, and correspondingly, a more obvious heating area can be obtained in other areas. Because the multiple second coil windings are located on the periphery of the first coil winding, there is a nearly circular heating effect on the cookware. By controlling the current direction of the multiple second coil windings, the coil disk assembly can obtain heating effects for at least two morphological areas, so as to solve the problem that the existing coil disk can only form a heating scenario of a single morphological area for the cookware. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0024] Figure 1 It is a planar schematic diagram of a plurality of excitation coils wound in the prior art;
[0025] Figure 2 A three-dimensional schematic diagram of an embodiment of a coil disk assembly provided by the utility model;
[0026] Figure 3 for Figure 2 An exploded schematic diagram of the coil disk assembly in FIG.
[0027] Figure 4 for Figure 2 A plan view of a first coil winding and a plurality of second coil windings;
[0028] Figure 5 for Figure 4 A schematic diagram of a case where the current directions of the first coil winding and the second coil winding are opposite;
[0029] Figure 6 for Figure 4 A schematic diagram of magnetic field distribution when the current directions of the first coil winding and the second coil winding are opposite;
[0030] Figure 7 for Figure 4 A schematic diagram of a case where the current directions of the first coil winding and the second coil winding are the same;
[0031] Figure 8 for Figure 4 A schematic diagram of magnetic field distribution when the current directions of the first coil winding and the second coil winding are the same;
[0032] Fig. 9 for Figure 2 A schematic diagram of another embodiment of the second coil winding;
[0033] Fig.10 A schematic plan view of another embodiment of the coil disk assembly provided by the utility model.
[0034] Description of Figure Numbers:
[0035] Label name Label name 100 Coil disc assembly 22 Curve transition section 1 Mounting Bracket 3 Second coil winding 2 First coil winding 31 Second side 21 First side 10 Field coil winding
[0036] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0040] IH heating uses a coil disk as a magnetic field providing component. It generates a heating current through the coupling effect of the magnetic field on the pot. The heating current acts on the cooking pot to generate heat. Since IH heating induction cookers use electromagnetic heating, their thermal efficiency is much higher than that of traditional open flames. Therefore, induction cookers have always been a popular cooking appliance for modern people. Figure 1 The coil disk solution of the prior art solution adopts a single or multiple circular excitation coil groups to be wound, and the heating effect of the electromagnetic heating on the cookware is manifested as multiple independent small rings. The existing coil disk excitation coil winding solution can only form a heating scene of a single shape area for the cookware.
[0041] Specifically, due to the traditional circular multi-zone winding electromagnetic heating magnetic field, since the circular excitation coil group 10 and the circular excitation coil group 10 are connected at only one point, and do not form a line, let alone an overall surface, the traditional circular multi-zone heating coil disk lacks more changes in the magnetic field heating effect. At the same time, the heating effect cannot achieve the uniformity effect of the square coil disk electromagnetic heating, and it is impossible to form different heating effects for different cookware.
[0042] In order to solve the above problems, the utility model provides a coil disk assembly. Figure 1 It is a planar schematic diagram of a plurality of excitation coils wound in the prior art; Figure 2 A three-dimensional schematic diagram of an embodiment of a coil disk assembly provided by the utility model; Figure 3 for Figure 2 An exploded schematic diagram of the coil disk assembly in FIG. Figure 4 for Figure 2 A plan view of a first coil winding and a plurality of second coil windings; Figure 5 for Figure 4 A schematic diagram of a case where the current directions of the first coil winding and the second coil winding are opposite; Figure 6 for Figure 4 A schematic diagram of magnetic field distribution when the current directions of the first coil winding and the second coil winding are opposite; Figure 7 for Figure 4 A schematic diagram of a case where the current directions of the first coil winding and the second coil winding are the same; Figure 8 for Figure 4 A schematic diagram of magnetic field distribution when the current directions of the first coil winding and the second coil winding are the same; Fig. 9 for Figure 2 A schematic diagram of another embodiment of the second coil winding; Fig.10 A schematic plan view of another embodiment of the coil disk assembly provided by the utility model.
[0043] See also Figures 2 to 4 The coil disk assembly 100 includes a mounting bracket 1, a first coil winding 2 and a plurality of second coil windings 3, wherein the first coil winding 2 is arranged on the mounting bracket, and the first coil winding 2 has a plurality of first sides 21; the plurality of second coil windings 3 are arranged on the mounting bracket 1 and are located at the periphery of the first coil winding 2, the plurality of second coil windings 3 are arranged corresponding to the plurality of first sides 21 of the first coil winding 2, and each of the second coil windings 3 has a second side 31 corresponding to the first side 21 of the first coil winding 2, the second side 31 of each of the second coil windings 3 is arranged in parallel with the first side 21 corresponding to the first coil winding 2, and the plurality of second coil windings 3 are arranged in parallel with the first coil winding 2 so as to be independently controlled.
[0044] It should be noted that the first coil winding 2 has multiple first side edges 21. The first coil winding 2 can be set to a polygon, or a quasi-polygon, or a quasi-circular shape with multiple cut lines. Of course, other possible shapes can also be used. The specific shape can be determined according to actual conditions, and the embodiments of this specification do not limit this.
[0045] It can be understood that when the first coil winding 2 and the plurality of second coil windings 3 are energized, a first magnetic field region is generated near the region where the first coil winding 2 is located, and a plurality of second magnetic field regions are correspondingly generated in the region where the plurality of second coil windings 3 are located. In theory, the magnetic field region of the coil disk assembly 100 is the region covered by the first magnetic field region and the plurality of second magnetic field regions, and a circular magnetic field region can be generated. However, when multiple magnetic fields are superimposed, especially in the region where the first coil winding 2 and the plurality of second coil windings 3 are close to each other, when the current flows in different directions, different magnetic field strengths will be generated in the region where the two are close to each other, that is, if the current directions of the two groups of coil segments close to each other are the same, the magnetic field will be superimposed in this region, so that the magnetic field is enhanced, and the coupling heating performance with the cookware is enhanced; if the current directions of the two groups of coil segments close to each other are opposite, the magnetic field will be offset in this region, so that the magnetic field is weakened, and the coupling heating performance with the cookware is reduced.
[0046] It can be understood that, when the first coil winding 2 and the plurality of second coil windings 3 are powered on, according to the attached Figure 5 As shown, when the first coil winding 2 carries a current in a clockwise direction and each of the second coil windings 3 carries a current in a counterclockwise direction, it is possible to control and realize that the multiple first sides 21 of the first coil winding 2 are consistent with the direction of the current of the second sides 31 of each of the second coil windings 3. Of course, it is also possible that when the first coil winding 2 carries a current in a counterclockwise direction and each of the second coil windings 3 carries a current in a clockwise direction, it is also possible to realize that the multiple first sides 21 of the first coil winding 2 are consistent with the direction of the current of the second sides 31 of each of the second coil windings 3.
[0047] According to the attached Figure 7 As shown, when the first coil winding 2 carries a current in a clockwise direction and each of the second coil windings 3 also carries a current in a clockwise direction, it is possible to control and realize that the multiple first sides 21 of the first coil winding 2 are opposite to the direction of the current of the second sides 31 of each of the second coil windings 3. Of course, it is also possible that when the first coil winding 2 carries a current in a counterclockwise direction and each of the second coil windings 3 carries a current in a counterclockwise direction, it is also possible to realize that the multiple first sides 21 of the first coil winding 2 are opposite to the direction of the current of the second sides 31 of each of the second coil windings 3.
[0048] It should be noted that the current directions of the first coil winding 2 and the second coil winding 3 described below are consistent and opposite, which both refer to the first coil winding 2 and the second coil winding 3 being passed in a clockwise direction or a counterclockwise direction.
[0049] In the technical solution provided by the utility model, when the first coil winding 2 and the plurality of second coil windings 3 are powered on and working, when the current flows through the plurality of first sides 21 of the first coil winding 2 and the current flows through the second sides 31 of each second coil winding 3 in the same direction, a relatively strong magnetic field region is formed near the area where the corresponding first sides 21 and the second sides 31 are located (see Figure 6 ), and the first coil winding 2 is provided with a plurality of first sides 21, so that a magnetic field enhancement region similar in shape to the first coil winding 2 can be formed, so that the electromagnetic heating effect of the region on the cookware is obvious; when the current flows through the plurality of first sides 21 of the first coil winding 2, and the current direction is opposite to the current flowing through the second sides 31 of each of the second coil windings 3, a weaker magnetic field region will be formed near the region where the corresponding first sides 21 and the second sides 31 are located (please refer to Figure 8 ), correspondingly, it can be obtained that there are relatively obvious heating areas in other areas, because the multiple second coil windings 3 are located on the periphery of the first coil winding 2, there is a heating effect on the cookware in an approximately circular shape, and by controlling the current direction of the multiple second coil windings 3, the coil disk assembly 100 can obtain heating effects for at least two morphological areas, so as to solve the problem that the existing coil disk can only form a heating scenario of a single morphological area for the cookware.
[0050] In this embodiment, the first side 21 is arranged in a straight line, and correspondingly, the second side 31 is arranged in a straight line. Since the magnetic field generation method of the linear coil segment is relatively simple, it can reduce the energy loss in the coil, so the energy utilization efficiency can be improved. Since the magnetic field generated by the linear coil segment is easier to calculate and control, it can usually form a more uniform magnetic field distribution, which helps to improve the efficiency and stability of the coil. At the same time, the structure of the linear coil segment is simpler, and it is more convenient and quick to process and install, which reduces the engineering complexity of the system, simplifies the design and debugging process, and is conducive to improving the reliability and stability of the system.
[0051] In this embodiment, the first side 21 and the second side 31 are arranged in parallel. When the coils are arranged in parallel, their magnetic field directions are also parallel, which helps to reduce electromagnetic interference between the coils and avoid unnecessary electromagnetic coupling and interference caused by the coils crossing or staggered, affecting the performance and stability of the circuit. At the same time, it can reduce energy loss, improve the efficiency of electromagnetic energy transmission, help reduce the energy consumption of the circuit, and optimize the performance of the electromagnetic device.
[0052] It should be noted that the mutual inductance between the coil segments arranged in parallel can increase the inductance of the entire coil. By properly designing the structure of the coil winding, the mutual induction effect can be used to increase the inductance value, thereby meeting the requirements of circuit design.
[0053] In this embodiment, at least one second coil winding 3 is provided corresponding to each first side edge 21. Specifically, one second coil winding 3 can be provided corresponding to each first side edge 21. With such a configuration, the production cost is low while achieving the heating effect of at least two morphological areas.
[0054] In another embodiment, see Fig.10 It is also possible to set a plurality of the second coil windings 3 corresponding to each of the first side edges 21, which can also achieve the heating effect of at least two morphological areas, and each of the second coil windings 3 can be adjusted and controlled individually, and the accuracy of the regulation can be correspondingly improved. This method can be used for scenarios with high requirements on the heating area but low requirements on the cost.
[0055] In this embodiment, adjacent first sides 21 are connected by a curved transition section 22. Preferably, the curved transition section 22 is set as an arc. Since the arc section has a smooth curve, the magnetic field changes more gently when the current flows through, which can reduce eddy current loss and Joule heat loss. Adjacent first sides 21 are connected by a curved transition section 22, which can also reduce voltage stress and mechanical stress. Adjacent first sides 21 are connected by sharp acute angles, right angles or obtuse angles, which easily lead to electric field concentration, and mechanical stress is concentrated at the connection, increasing the pressure and loss of the insulating material, while the curved transition connection can disperse the electric field, reduce voltage stress, balance mechanical stress, and reduce the vibration and damage risk of the coil.
[0056] It can be understood that by properly designing the curve shape and length of the curve transition section 22, the magnetic field distribution and the current density distribution can be optimized, thereby improving the efficiency and performance of the coil.
[0057] In this embodiment, the number of the first sides 21 is greater than or equal to 3. Thus, the number of the second coil windings 3 is also correspondingly greater than or equal to 3, so that a plurality of the second coil windings 3 can be arranged around the periphery of the first coil winding 2 to form a quasi-circular electromagnetic field that is compatible with a general round-bottomed cookware.
[0058] In some embodiments, see Fig. 9 The second coil winding 3 is arranged in a track shape, a triangle shape or a square shape, so that the second coil winding 3 can have the second side 31 extending along a straight line. Winding the second coil winding 3 in the above shape also facilitates the coil winding process.
[0059] When the coil disk assembly 100 is applied to an induction cooker, the induction cooker is generally set to a square shape. In order to make the coil disk assembly 100 cover a larger area, in this embodiment, the mounting bracket 1 is set to be quasi-square. In this way, the first coil winding 2 can be set to a square shape, and the second coil winding 3 can be set to 4. The first coil winding 2 and the plurality of the second coil windings 3 can form a larger heating area as a whole. In addition, since square pots are more commonly used in general pots in addition to round bottoms, the first side 21 and the second side 31 can form a heating area with a strong electromagnetic field at the straight edge when the current is set in the same direction, forming a square heating area, so that the coil disk assembly 100 can also adapt to square-shaped pots.
[0060] The utility model also provides a cooking utensil, the cooking utensil includes the above-mentioned coil disk assembly 100. Since the cooking utensil includes the coil disk assembly 100, the specific structure of the coil disk assembly 100 refers to the above-mentioned embodiment. Since the coil disk assembly 100 of the cooking utensil adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.
[0061] In order to conveniently control the current direction of the first coil winding 2 and the plurality of second coil windings 3, in this embodiment, the cooking appliance further includes a control device, which is electrically connected to the first coil winding 2 and the plurality of second coil windings 3, and is used to control the operation of the first coil winding 2 and the plurality of second coil windings 3. In this way, the control device can realize electric control, and when it is necessary to switch the heating form or heating mode for different pots, the control button can be operated, and the control device automatically switches the current direction of the power supply to the second coil winding 3 according to the control instruction.
[0062] Specifically, the cooking device includes an induction cooker. When the cooking device is an induction cooker, it can be adapted to a general wok and a square frying pan, etc., thereby improving the versatility of the induction cooker.
[0063] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A coil disk assembly, characterized in that: include: Mounting bracket; A first coil winding is disposed on the mounting bracket, and the first coil winding has a plurality of first sides; as well as, A plurality of second coil windings are arranged on the mounting bracket and located outside the first coil winding. The plurality of second coil windings are arranged corresponding to the plurality of first sides of the first coil winding, and each of the second coil windings has a second side corresponding to the first side of the first coil winding. The second side of each of the second coil windings is arranged in parallel with the first side corresponding to the first coil winding, and the plurality of second coil windings are arranged in parallel with the first coil winding so as to be independently controlled.
2. The coil disk assembly according to claim 1, characterized in that The first side is arranged in a straight line, and correspondingly, the second side is arranged in a straight line.
3. The coil disk assembly according to claim 2, characterized in that The first side edge and the second side edge are arranged in parallel.
4. The coil disk assembly according to claim 1, characterized in that At least one second coil winding is correspondingly disposed on each of the first sides.
5. The coil disk assembly according to claim 1, characterized in that Adjacent first side edges are connected by a curved transition section.
6. The coil disk assembly according to claim 1, characterized in that The number of the first sides is greater than or equal to 3.
7. The coil disk assembly according to claim 1, characterized in that The second coil winding is arranged in a racetrack shape, a triangle shape or a square shape.
8. The coil disk assembly according to any one of claims 1 to 7, characterized in that: The mounting bracket is arranged in a quasi-square shape.
9. A cooking utensil, characterized in that: Comprising the coil disk assembly according to any one of claims 1 to 8.
10. The cooking device according to claim 9, characterized in that: The cooking appliance further includes a control device, which is electrically connected to the first coil winding and the plurality of second coil windings and is used to control the operation of the first coil winding and the plurality of second coil windings.
11. The cooking device according to claim 9, characterized in that: The cooking appliance comprises an induction cooker.