Heating plate assembly and cooking utensil

Abstract

The utility model discloses a heating plate assembly and cooking utensil relates to electromagnetic heating technical field, wherein the heating plate assembly includes support, a plurality of winding unit and infrared heating subassembly, the support has the central area, the plurality of winding unit is distributed along the circumference of the support on the periphery of the central area, and the infrared heating subassembly is arranged on the periphery of the central area along the circumference of the support. An inner surrounding area is defined by winding of the winding units, the center of the inner surrounding area deviates from the center of the corresponding winding unit in the direction towards the peripheral side of the support, and the infrared heating assembly is arranged corresponding to the middle area. According to the technical scheme, the infrared heating assembly is arranged in the middle area of the support, the winding units distributed in the circumferential direction are arranged on the periphery of the infrared heating assembly, the pot wall can be effectively heated, and the middle area of the pot bottom can be fully heated.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic heating technology, and in particular to a heating plate assembly and a cooking appliance. Background Technology

[0002] Conventional induction cooker coils have a single-ring spiral winding structure. Their heating effect on cookware is limited by their own physical electromagnetic field, and the heat is concentrated inward. When the item to be heated is a wok, the heat cannot be concentrated on the pot wall due to the large distance between the coils on the side walls, resulting in poor heating of the pot wall. Even if the diameter of the coil is increased, it is difficult to increase the heat of the pot wall, and it is also easy to cause poor heating effect in the middle area of ​​the bottom of the pot. Summary of the Invention

[0003] The main purpose of this invention is to propose a heating plate assembly and cooking appliance, which aims to solve the problem that existing induction cookers have poor heating effect on the middle area of ​​the pot bottom.

[0004] To achieve the above objectives, this utility model proposes a heating plate assembly and a cooking appliance, comprising:

[0005] The support has a central region;

[0006] Multiple winding units are disposed on the bracket and arranged around the periphery of the central region along the circumference of the bracket. The winding of the winding unit defines an inner region. In the direction towards the outer periphery of the bracket, the center of the inner region is offset from the center of the corresponding winding unit.

[0007] An infrared heating component is mounted on the bracket and is positioned corresponding to the central region.

[0008] In one embodiment, the plurality of winding units constitute at least one pair of winding units, each pair of winding units including two winding units distributed along the circumference of the bracket, each winding unit being arranged in a ring, having a first winding loop segment near the center of the bracket and a second winding loop segment near the edge of the bracket;

[0009] In the pair of winding units, the current flows of the two winding units are set to be opposite, so that opposite magnetic poles are formed in the middle of the two winding units, and in at least one of the winding units, the width of at least a portion of the first winding loop segment is d1, the width of at least a portion of the second winding loop segment is d2, and d1 is greater than d2.

[0010] In one embodiment, the plurality of winding units constitute at least one pair of winding units, each pair of winding units including two winding units distributed along the circumference of the bracket, each winding unit being arranged in a ring, having a first winding loop segment near the center of the bracket and a second winding loop segment near the edge of the bracket;

[0011] In the pair of winding units, the current flows of the two winding units are set to be opposite, so that opposite magnetic poles are formed in the middle of the two winding units, and in at least one of the winding units, the winding center of the winding unit is located on the side of its geometric center close to the second winding loop segment.

[0012] In one embodiment, the winding unit includes a multi-turn coil, each turn of the coil including a first winding segment and a second winding segment connected to each other. The plurality of first winding segments of the winding unit are disposed on one side of the bracket, and the plurality of second winding segments of the winding unit are disposed on the other side of the bracket. The plurality of first winding segments and the plurality of second winding segments are bent and protruded toward the central region to define the inner perimeter region near the edge of the bracket.

[0013] In one embodiment, a magnetic shielding structure is provided between the plurality of first winding segments and the plurality of second winding segments.

[0014] In one embodiment, the bracket has a first side and a second side opposite each other in a first direction, the first side of the bracket being used to heat the appliance to be heated;

[0015] The infrared heating component is positioned to protrude from the plurality of winding units in the direction of the first side of the bracket.

[0016] In one embodiment, the infrared heating assembly includes an infrared heating element;

[0017] A heat insulation part is provided between the infrared heating element and the bracket.

[0018] In one embodiment, the infrared heating assembly further includes:

[0019] A base, mounted in the middle region of the bracket; and,

[0020] A heat-insulating base is disposed on the side of the base opposite to the bracket;

[0021] The infrared heating element is disposed on the heat insulation base, and the heat insulation element includes the heat insulation base.

[0022] In one embodiment, a plurality of positioning parts are provided around the periphery of the central region, and a plurality of mating parts are provided around the periphery of the base. One of the positioning parts and the mating parts is a positioning hole, and the other is a positioning post.

[0023] In one embodiment, the positioning part is a positioning post, and a spring is sleeved on the positioning post, with the spring located between the mating part and the central region.

[0024] In one embodiment, the heat insulation part is made of either ceramic or aerogel.

[0025] In one embodiment, the infrared heating assembly further includes:

[0026] A wiring terminal is disposed on the base and electrically connected to the infrared heating element; and...

[0027] A temperature measuring component is installed on the terminal block, with its detection end extending into the heating area of ​​the infrared heating element.

[0028] In one embodiment, the infrared heating element includes an infrared heating wire, which is coiled into a ring or a square shape.

[0029] In one embodiment, a plurality of the winding units are distributed on one side of the bracket.

[0030] This utility model also proposes a cooking appliance, including a heating plate assembly, the heating plate assembly comprising:

[0031] The support has a central region;

[0032] Multiple winding units are disposed on the bracket and arranged around the periphery of the central region along the circumference of the bracket. The winding of the winding unit defines an inner region. In the direction towards the outer periphery of the bracket, the center of the inner region is offset from the center of the corresponding winding unit.

[0033] An infrared heating component is mounted on the bracket and is positioned corresponding to the central region.

[0034] In this invention, multiple winding units are arranged circumferentially on the support frame. The winding of each unit defines an inner region, and the center of the inner region is offset from the geometric center of the corresponding winding unit. This allows the magnetic poles formed in the inner region to be closer to the edge of the support frame, enabling coupling with the corresponding pot wall position and increasing the heating range of the pot wall. This solves the problem of poor heating effect on the pot wall in existing induction cookers, where even increasing the coil diameter is insufficient to increase the heat of the pot wall. An infrared heating component is located in the central region of the support frame, with multiple winding units arranged circumferentially around the periphery of the central region. This allows the infrared heating component to fully heat the central region of the pot bottom, solving the problem of poor heating effect on the central region of the pot bottom in existing electromagnetic heating devices. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0036] Figure 1 A top view of an embodiment of a heating plate assembly provided by this utility model;

[0037] Figure 2 for Figure 1 Schematic diagram of the structure in the AA direction;

[0038] Figure 3 for Figure 1 Exploded view of the central heating plate assembly;

[0039] Figure 4 for Figure 3 Exploded view of the mid-infrared heating component;

[0040] Figure 5 for Figure 3 Enlarged structural diagram of section B;

[0041] Figure 6 This is a top view of another embodiment of a heating plate assembly provided by the present invention.

[0042] Figure 7 for Figure 6 Schematic diagram of the CC-axis structure;

[0043] Figure 8 for Figure 6 A schematic diagram of the structure of the winding unit after it is powered on;

[0044] Figure 9 for Figure 6 Exploded view of the heating plate assembly;

[0045] Figure 10 for Figure 6 A schematic diagram of the heating of the cookware sidewall by the central coil assembly.

[0046] Explanation of icon numbers:

[0047] 100. Heating plate assembly; 1. Bracket; 11. Central area; 111. Positioning part; 2. Winding unit; 21. Inner perimeter area; 22. First winding loop segment; 221. First winding segment; 23. Second winding loop segment; 231. Second winding segment; 3. Infrared heating assembly; 31. Base; 311. Mating part; 32. Heat insulation seat; 33. Infrared heating element; 34. Wiring terminal; 35. Temperature measuring assembly; 4. Magnetic shielding structure; 5. Spring;

[0048] 201. Cookware.

[0049] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0051] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0052] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0053] Conventional induction cooker coils have a single-ring spiral winding structure. Their heating effect on cookware is limited by their own physical electromagnetic field, and the heat is concentrated inward. When the item to be heated is a wok, the heat cannot be concentrated on the pot wall due to the large distance between the coils on the side walls, resulting in poor heating of the pot wall. Even if the diameter of the coil is increased, it is difficult to increase the heat of the pot wall, and it is also easy to cause poor heating effect in the middle area of ​​the bottom of the pot.

[0054] In view of this, the present invention proposes a heating plate assembly to solve the problems of poor heating effect of existing induction cookers on the pot wall and poor heating effect in the middle area of ​​the pot bottom.

[0055] Please see Figure 1 In one embodiment of this utility model, the heating plate assembly 100 includes a support 1, a plurality of winding units 2, and an infrared heating assembly 3. The support 1 has a central region 11. The plurality of winding units 2 are disposed on the support 1 and arranged around the central region 11 along the circumference of the support 1. The winding of the winding unit 2 defines an inner region 21. In the direction towards the outer periphery of the support 1, the center of the inner region 21 is offset from the center of the corresponding winding unit 2. The infrared heating assembly 3 is disposed on the support 1 and is disposed corresponding to the central region 11.

[0056] In this invention, multiple winding units 2 are arranged circumferentially on the support 1. The winding of each winding unit 2 defines an inner region 21, and the center of the inner region 21 is offset from the geometric center of the corresponding winding unit 2. This makes the magnetic poles formed in the inner region 21 closer to the edge of the support 1, enabling coupling with the corresponding pot wall position and increasing the heating range of the pot wall. This solves the problem of poor heating effect of existing induction cookers on the pot wall, where even increasing the coil diameter is difficult to increase the heat of the pot wall. An infrared heating component is provided in the central region 11 of the support 1, and multiple winding units 2 are arranged circumferentially around the central region 11. This allows the infrared heating component to heat the central region 11 of the pot bottom more fully, solving the problem of poor heating effect of existing induction cookers on the central region 11 of the pot bottom.

[0057] In order to make the center of the inner perimeter region 21 offset from the center of the corresponding winding unit 2, this utility model provides several embodiments. Figures 1 to 5 In one embodiment of this utility model, Figures 6 to 8 This is another embodiment.

[0058] First, let's introduce Figures 1 to 5 Example:

[0059] See Figure 1 and Figure 2 The winding unit 2 includes a multi-turn coil, each turn of the coil including a first winding segment 221 and a second winding segment 231 connected to each other. The multiple first winding segments 221 of the winding unit 2 are disposed on one side of the bracket 1, and the multiple second winding segments 231 of the winding unit 2 are disposed on the other side of the bracket 1. The multiple first winding segments 221 and the multiple second winding segments 231 are bent and protruded toward the central region 11 to define the inner perimeter region 21 near the edge of the bracket 1.

[0060] In the technical solution of this utility model, the winding unit 2 includes a multi-turn coil. Each turn of the coil includes a first winding segment 221 and a second winding segment 231 connected to each other. The first winding segment 221 is disposed on one side of the support 1, and the second winding segment 231 is disposed on the other side of the support 1. That is, the first winding segment 221 and the second winding segment 231 are distributed on opposite sides of the support 1 to enhance the magnetic field strength of the inner perimeter region 21. The inner perimeter region 21 is close to the edge of the support 1, thereby improving the heating effect of the pot wall.

[0061] Furthermore, a magnetic shielding structure 4 is provided between the plurality of first winding segments 221 and the plurality of second winding segments 231. By providing a magnetic shielding structure on the support 1 between the plurality of first winding segments 221 and the plurality of second winding segments 231, mutual interference of the magnetic fields generated by the first winding segments 221 and the second winding segments 231 can be avoided. Specifically, the magnetic shielding structure includes magnetic strips, and the material of the magnetic strips may include at least one of ferrite and nanocrystals.

[0062] Furthermore, the bracket 1 has a first side and a second side opposite to each other in a first direction, and the first side of the bracket 1 is used to heat the appliance to be heated;

[0063] The infrared heating component 3 is positioned to protrude from the plurality of winding units 2 in the direction of the first side of the bracket 1, see reference. Figure 2 .

[0064] By adopting the above technical solution, in the direction of heating the appliance to be heated, such as a pot, the infrared heating component 3 protrudes multiple winding units 2 so that the panel can fit better on the infrared heating component 3, thereby forming a seal for the infrared heating device inside the infrared heating component 3, preventing heat loss and ensuring the efficiency of infrared heating. It can be understood that when using the appliance, such as a pot, is placed on the panel, the infrared heating component 3 can heat the middle part of the bottom of the appliance to be heated more fully.

[0065] See Figure 3 and Figure 4 In the technical solution of this utility model, the infrared heating component 3 includes an infrared heating element 33, and a heat insulation part is provided between the infrared heating element 33 and the bracket 1. The infrared heating element 33 emits infrared rays, which are absorbed by the cookware or other heating appliances to achieve a heating effect. The heat insulation part provided between the infrared heating element 33 and the bracket 1 can prevent the infrared rays emitted by the infrared heating component 3 from affecting the normal operation of other components such as the winding unit 2, so that all components can work normally.

[0066] Specifically, the infrared heating assembly 3 further includes a base 31 and a heat insulation seat 32. The base 31 is installed in the middle region 11 of the bracket 1. The heat insulation seat 32 is disposed on the side of the base 31 facing away from the bracket 1. The infrared heating part 33 is disposed on the heat insulation seat 32, and the heat insulation part includes the heat insulation seat 32.

[0067] By adopting the above technical solution, the base 31 is installed in the middle region 11 of the bracket 1, which can stably support the other structures of the infrared heating component 3. The base 31 has a mounting groove on the side facing away from the bracket 1. The heat insulation seat 32 is installed in the mounting groove, and the infrared heating part 33 is set on the heat insulation seat 32. In this way, heat insulation between the infrared heating part 33 and the bracket 1 is achieved. The heat insulation part includes the heat insulation seat 32, and may also include other heat insulation structures as needed.

[0068] In order to make it easier and more stable to install the base 31 on the bracket 1, a plurality of positioning parts 111 are provided on the periphery of the central region 11, and a plurality of mating parts 311 are provided on the periphery of the base 31. One of the positioning parts 111 and the mating parts 311 is a positioning hole, and the other is a positioning post.

[0069] By adopting the above technical solution, multiple positioning parts 111 are provided around the periphery of the central region 11, and mating parts 311 adapted to the multiple positioning parts 111 are provided around the periphery of the base 31. This facilitates the installation of the base 31, and the structure after installation is relatively stable. It should be noted that "one of the positioning part 111 and the mating part 311 is a positioning hole, and the other is a positioning post" means that when the positioning part 111 is a positioning hole, the mating part 311 is a positioning post; conversely, when the positioning part 111 is a positioning post, the mating part 311 is a positioning hole.

[0070] Specifically, see Figures 3 to 5 The positioning part 111 is a positioning post, the mating part 311 is a positioning hole, and a spring 5 is sleeved on the positioning post. The spring 5 is located between the mating part 311 and the central region 11.

[0071] By adopting the above technical solution, the positioning part 111 is a positioning post, the mating part 311 is a positioning hole, and a spring 5 is sleeved on the positioning post. During installation, the positioning hole on the base 31 is sleeved on the corresponding positioning post. The periphery of the positioning hole contacts one end of the spring 5, and the other end of the spring 5 contacts the central region 11. The panel is covered on the infrared heating component 3 and contacts the end of the positioning post. In this way, the infrared heating component 3 is installed more stably in the central region 11, and the spring 5 has a buffering and shock-absorbing effect, which can further improve the overall structural stability of the infrared heating component 3.

[0072] To ensure the insulation component effectively performs its function, it is made of either ceramic or aerogel. Both ceramic and aerogel offer excellent insulation properties, and using either ceramic or aerogel as the insulation component provides good insulation. Of course, other materials can also be selected as needed.

[0073] Further, see Figure 4 The infrared heating component 3 further includes a wiring terminal 34 and a temperature measuring component 35. The wiring terminal 34 is disposed on the base 31 and electrically connected to the infrared heating element 33. The temperature measuring component 35 is installed on the wiring terminal 34 and its detection end extends to the heating area of ​​the infrared heating element 33.

[0074] By adopting the above technical solution, the wiring terminal 34 is electrically connected to the infrared heating element 33 so as to power the infrared heating element 33, and the temperature measuring component 35 is used to detect the temperature of the heating area of ​​the infrared heating element 33 in real time so as to achieve precise temperature control.

[0075] Specifically, the infrared heating element 33 includes an infrared heating wire, which is coiled into a ring or a square shape. Coiling the infrared heating wire into a ring or a square shape can maximize the usable area of ​​the central region 11 and effectively improve the heating effect of the central region 11. Of course, the infrared heating wire can also be coiled into other shapes as needed.

[0076] Next, we will introduce... Figures 6 to 9 Example:

[0077] See Figure 6 In one embodiment, the plurality of winding units 2 constitute at least one pair of winding units 2, each pair of winding units 2 including two winding units 2 distributed along the circumference of the bracket 1, each winding unit 2 being arranged in a ring, having a first winding loop segment 22 near the center of the bracket 1 and a second winding loop segment 23 near the edge of the bracket 1.

[0078] Among them, see Figure 7 and Figure 8 In the pair of winding units 2, the current directions of the two winding units 2 are set to be opposite, so that opposite magnetic poles are formed in the middle of the two winding units 2, and in at least one of the winding units 2, the width of the first winding loop segment 22 is at least partly d1, and the width of the second winding loop segment 23 is at least partly d2, where d1 is greater than d2.

[0079] In the technical solution provided by this utility model, in at least one winding unit 2, the width of at least a portion of the first winding loop segment 22 is d1, and the width of at least a portion of the second winding loop segment 23 is d2, where d1 is greater than d2. This allows the magnetic pole formed in the middle of the winding unit 2 to be closer to the edge of the support 1, enabling coupling with the corresponding position on the pot wall. (See reference...) Figure 10 The increased heating range of the pot wall improves the uniformity of heating the bottom and walls of the pot 201, thus solving the problem that existing induction cookers have poor heating effect on the pot wall, and it is difficult to increase the heat of the pot wall even if the coil diameter is increased.

[0080] In another embodiment, the plurality of winding units 2 constitute at least one pair of winding units 2, each pair of winding units 2 including two winding units 2 distributed along the circumference of the bracket 1, each winding unit 2 being arranged in a ring, having a first winding loop segment 22 near the center of the bracket 1 and a second winding loop segment 23 near the edge of the bracket 1.

[0081] In the pair of winding units 2, the current directions of the two winding units 2 are set to be opposite, so that opposite magnetic poles are formed in the middle of the two winding units 2, and in at least one of the winding units 2, the winding center of the winding unit 2 is located on the side of its geometric center close to the second winding loop segment 23.

[0082] In the technical solution provided by this utility model, by having the winding center of at least one winding unit 2 located on the side of its geometric center close to the second winding ring segment 23, the magnetic pole formed in the middle of the winding unit 2 can be closer to the edge of the support 1, and can couple with the corresponding position of the pot wall, thereby increasing the heating range of the pot wall and improving the uniformity of heating the bottom and wall of the pot. This solves the problem that the existing induction cooker has poor heating effect on the pot wall, and it is difficult to increase the heat of the pot wall even if the diameter of the coil is increased.

[0083] It should be noted that the shapes of the winding units 2 in the "multiple winding units 2" mentioned in this application can be the same or different. Each winding unit 2 is formed by winding multiple turns of coil. Each turn of coil in each winding unit 2 can be regarded as a ring structure. Of course, the ring structure is not limited to being circular; it can be square or elliptical. Each winding unit 2 can be laid flat along a surface area, which can be a plane or a curved surface. Each winding unit 2 can also be bent. The specifics can be determined according to the actual situation, and the embodiments in this specification do not limit this.

[0084] "The plurality of winding units 2 are distributed along the circumference of the bracket 1" can mean that the plurality of winding units 2 are distributed in a ring on the same side of the bracket 1, or that some winding units 2 are located on one side of the bracket 1 and other winding units 2 are located on the other side of the bracket 1. However, as long as they are distributed in a ring on the projection surface of the bracket 1, they can be regarded as "the plurality of winding units 2 are distributed along the circumference of the bracket 1".

[0085] "Current direction" refers to the direction in which the current of the winding unit 2 flows clockwise or counterclockwise. "The current directions of the two winding units 2 are set to be opposite" means that when the current direction of one winding unit 2 is clockwise, the current direction of the other winding unit 2 is counterclockwise.

[0086] It should be noted that, according to Ampere's law: if you hold a current-carrying solenoid with your right hand and point your four fingers in the direction of the current, then the end pointed to by your thumb is the N pole of the current-carrying solenoid. Thus, when the current directions of the two winding units 2 are set to opposite, a closed magnetic field is formed between the two winding units 2. For example, if one of the two winding units 2 is set as the first winding unit and the other as the second winding unit, and the first and second winding units are laid flat in the horizontal direction, then the N pole is formed on the upper side of the first winding unit and the S pole is formed on the lower side. At the same time, the S pole is formed on the upper side of the second winding unit and the N pole is formed on the lower side. Thus, the magnetic field lines run from the N pole of the first winding unit to the S pole of the second winding unit, then from the S pole of the second winding unit to the N pole, then from the N pole of the second winding unit to the S pole of the first winding unit, and then from the S pole of the first winding unit back to the N pole of the first winding unit, thereby forming a closed magnetic field.

[0087] Therefore, when a pair of winding units 2 are energized, the closed magnetic field formed between the two irregular magnetic poles formed by the two winding units 2 can couple with the pot wall which is far away from the winding unit 2, thereby heating the pot wall.

[0088] The "width" in "at least a portion of the width of the first winding loop segment 22 is d1, and at least a portion of the width of the second winding loop segment 23 is d2, where d1 is greater than d2" refers to the distance between the innermost coil and the outermost coil in the multi-turn coil of the winding unit 2, in the direction outward from the geometric center of the winding unit 2. This can be achieved by reducing the winding length of the corresponding area of ​​the second winding loop segment 23; or by setting the winding gap of the first winding loop segment 22 to be greater than that of the second winding loop segment 23 when adjacent winding segments in the first and second winding loop segments 22 are arranged in parallel. Of course, when adjacent winding segments in the winding loop segments are not arranged in parallel, the winding gap will be uneven, but other winding segments can be adaptively adjusted to ultimately achieve d1 greater than d2.

[0089] "The winding center of the winding unit 2 is located on the side of its geometric center close to the second winding loop segment 23". This can be achieved by setting the winding unit 2 into a fan-shaped or triangular shape, and adjusting the shape of the winding unit 2 to adjust the geometric center.

[0090] Understandably, according to Ampere's law, the magnetic poles formed by the winding unit 2 correspond to the inner ring region of the ring. When "d1 is greater than d2" or "the winding center is located on the side of its geometric center close to the second winding ring segment 23", the magnetic poles of the corresponding winding unit 2 are formed in the region close to the outer periphery of the support 1, thereby achieving the largest possible heating range for the pot wall.

[0091] Of course, the specific ways to make the width of the first winding loop segment 22 greater than the width of the second winding loop segment 23, and to make the winding center of the winding unit 2 located on the side of its geometric center close to the second winding loop segment 23, are not limited to the examples above. Those skilled in the art may make other changes under the guidance of the technical essence of the embodiments in this specification. However, as long as the functions and effects achieved are the same as or similar to those in the embodiments of this specification, they should all be covered within the protection scope of the embodiments of this specification.

[0092] See Figure 6 and Figure 9 In another embodiment of the present invention, a plurality of the winding units 2 are distributed on one side of the bracket 1.

[0093] By adopting the above technical solution, multiple winding units 2 are distributed on one side of the bracket 1, that is, on the first side of the bracket 1. This side is used to heat the appliance to be heated. This distribution of the winding units 2 has the advantage of a simpler winding process. Specifically, the magnetic shielding structure 4 is also provided on the second side of the bracket 1. The magnetic shielding structure can conduct magnetism while also providing magnetic shielding for the multiple winding units 2 in the bottom direction.

[0094] Furthermore, the plurality of winding units 2 are arranged in series or in parallel.

[0095] When multiple winding units 2 are arranged in series, the current direction of adjacent winding units 2 can be reversed when energized simply by adjusting the winding direction. This simplifies the winding method and facilitates production and processing.

[0096] When multiple winding units 2 are arranged in parallel, each winding unit 2 can be individually controlled to energize. This not only allows for reverse current directions between adjacent winding units 2, but also enables flexible control of the current direction in special scenarios, making electrical control more flexible and convenient. Furthermore, if some winding units 2 fail, the others remain unaffected and continue to operate normally.

[0097] Specifically, in this embodiment, two adjacent winding units 2 are riveted, welded, or screwed together to ensure stable connection and conduction between the multiple winding units 2. Of course, other possible connection methods can also be used, and the specific method can be determined according to the actual situation. This embodiment does not limit this.

[0098] This utility model also proposes a cooking appliance, which includes a heating plate assembly and an electronic control device as described in the above embodiments. The specific structure of the heating plate assembly is as described in the above embodiments. Since this cooking appliance adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0099] The cooking appliance can be an induction cooker or an induction heating stove, etc. Any cooking appliance with the heating plate assembly belongs to the cooking appliance described in this utility model.

[0100] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A heating plate assembly, characterized in that, include: The support has a central region; Multiple winding units are disposed on the bracket and arranged around the periphery of the central region along the circumference of the bracket. The winding of the winding unit defines an inner region. In the direction towards the outer periphery of the bracket, the center of the inner region is offset from the center of the corresponding winding unit. An infrared heating component is mounted on the bracket and is positioned corresponding to the central region.

2. The heating plate assembly as described in claim 1, characterized in that, The plurality of winding units constitute at least one pair of winding units, each pair of winding units including two winding units distributed along the circumference of the bracket, each winding unit being arranged in a ring, having a first winding loop segment near the center of the bracket and a second winding loop segment near the edge of the bracket; In the pair of winding units, the current flows of the two winding units are set to be opposite, so that opposite magnetic poles are formed in the middle of the two winding units, and in at least one of the winding units, the width of at least a portion of the first winding loop segment is d1, the width of at least a portion of the second winding loop segment is d2, and d1 is greater than d2.

3. The heating plate assembly as described in claim 1, characterized in that, The plurality of winding units constitute at least one pair of winding units, each pair of winding units including two winding units distributed along the circumference of the bracket, each winding unit being arranged in a ring, having a first winding loop segment near the center of the bracket and a second winding loop segment near the edge of the bracket; In the pair of winding units, the current flows of the two winding units are set to be opposite, so that opposite magnetic poles are formed in the middle of the two winding units, and in at least one of the winding units, the winding center of the winding unit is located on the side of its geometric center close to the second winding loop segment.

4. The heating plate assembly as described in claim 1, characterized in that, The winding unit includes a multi-turn coil, each turn of the coil including a first winding segment and a second winding segment connected to each other. The plurality of first winding segments of the winding unit are disposed on one side of the bracket, and the plurality of second winding segments of the winding unit are disposed on the other side of the bracket. The plurality of first winding segments and the plurality of second winding segments are bent and protruded toward the central region to define the inner perimeter region near the edge of the bracket.

5. The heating plate assembly as described in claim 4, characterized in that, A magnetic shielding structure is provided between the plurality of first winding segments and the plurality of second winding segments.

6. The heating plate assembly as claimed in claim 1, characterized in that, The bracket has a first side and a second side opposite to each other in a first direction, the first side of the bracket being used to heat the appliance to be heated; The infrared heating component is positioned to protrude from the plurality of winding units in the direction of the first side of the bracket.

7. The heating plate assembly as claimed in claim 1, characterized in that, The infrared heating component includes an infrared heating element; A heat insulation part is provided between the infrared heating element and the bracket.

8. The heating plate assembly as described in claim 7, characterized in that, The infrared heating component also includes: A base, mounted in the middle region of the bracket; and, A heat-insulating base is disposed on the side of the base opposite to the bracket; The infrared heating element is disposed on the heat insulation base, and the heat insulation element includes the heat insulation base.

9. The heating plate assembly as claimed in claim 8, characterized in that, The central region is provided with multiple positioning parts around its periphery, and the base is provided with multiple mating parts around its periphery. One of the positioning parts and the mating parts is a positioning hole, and the other is a positioning post.

10. The heating plate assembly as claimed in claim 9, characterized in that, The positioning part is a positioning post, and a spring is sleeved on the positioning post. The spring is located between the mating part and the central region.

11. The heating plate assembly as claimed in claim 7 or 8, characterized in that, The heat insulation part is made of either ceramic or aerogel.

12. The heating plate assembly as claimed in claim 8, characterized in that, The infrared heating component also includes: A wiring terminal is disposed on the base and electrically connected to the infrared heating element; and... A temperature measuring component is installed on the terminal block, with its detection end extending into the heating area of ​​the infrared heating element.

13. The heating plate assembly as claimed in claim 7, characterized in that, The infrared heating element includes an infrared heating wire, which is coiled into a ring or a square shape.

14. The heating plate assembly as claimed in claim 1, characterized in that, Multiple winding units are distributed on one side of the bracket.

15. A cooking utensil, characterized in that, Includes the heating plate assembly as described in any one of claims 1 to 14.

Images