Wireless communication coil panel and cooking appliance

Abstract

This application relates to the field of cooking appliance technology, and provides a wireless communication coil and cooking appliance. The wireless communication coil includes a support body and an energizing component. The energizing component is disposed on one side of the support body along its thickness direction. A portion of the energizing component disposed on the support body is stripped to form a communication winding. The wireless communication coil provided in this application can reduce manufacturing difficulty and improve production efficiency.

Description

Technical Field

[0001] This application relates to the field of cooking appliance technology, and in particular to a wireless communication coil plate and cooking appliance. Background Technology

[0002] This section is intended to provide background or context for embodiments of this application. The description herein is not intended to imply that it is prior art simply because it is included in this section.

[0003] Wireless communication coils typically include a communication coil used to achieve communication functionality. In related technologies, the communication coil is formed by winding enameled wire. However, the diameter of the enameled wire is usually between 0.2mm and 0.5mm, which is very small. Furthermore, the enameled wire is elastic and difficult to fix, making processing extremely difficult. It is almost entirely manual, and the manufacturing cost far exceeds the material cost, resulting in a high price. Utility Model Content

[0004] In view of this, the embodiments of this application aim to provide a wireless communication coil plate and cooking appliance that can reduce manufacturing difficulty and improve production efficiency.

[0005] The first aspect of this application provides a wireless communication coil disk, including:

[0006] Support structure;

[0007] A power-conducting component is disposed on one side of the support body along the thickness direction. The power-conducting component disposed on the support body has a stripped portion structure to form a communication winding.

[0008] In some embodiments, the energized component is a metal foil.

[0009] In some embodiments, the electrically conductive components disposed on the support are partially stripped by cutting or laser wire cutting.

[0010] In some embodiments, the thickness of the energized component is between 0.05 mm and 1 mm.

[0011] In some embodiments, the energized component is a flexible circuit board.

[0012] In some embodiments, the electrically conductive components disposed on the support are partially etched away.

[0013] In some embodiments, the energized component is conductive ink.

[0014] In some embodiments, the support body and the electrically conductive component are bonded together by an adhesive structure.

[0015] In some embodiments, the entire outer surface of the communication winding is covered by the adhesive structure.

[0016] In some embodiments, the communication winding is sandwiched between the two supports.

[0017] In some embodiments, the communication winding is in the form of a double helix.

[0018] A second aspect of this application provides a cooking appliance, including the wireless communication coil plate described in any of the preceding claims.

[0019] The wireless communication coil provided in this application embodiment has several advantages. First, the energized component and the support body are integrally formed into a communication winding, eliminating the need to adjust the position and spacing of the enameled wire during production, as is the case with related technologies, thus reducing manufacturing difficulty. Second, the energized component is fixed to the support body, maintaining good stability during processing, facilitating operator operation and improving production efficiency. Third, the position of the energized component fixed to the support body is predetermined, preventing displacement or deviation after partial structural removal. This means the shape and position of the communication winding remain largely unchanged, ensuring that the wiring of the communication winding meets requirements. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the manufacturing process of a wireless communication coil disk provided in some embodiments of this application, wherein the slanted area exemplarily represents the portion of the structure where the energized component is stripped off;

[0021] Figure 2 This is a schematic diagram of the structure of an energized component provided in some embodiments of this application. The energized component is a flexible circuit board.

[0022] Figure 3 A schematic diagram of the assemblies of the energized components, adhesive structures, and support bodies provided in some embodiments of this application;

[0023] Figure 4 A schematic diagram of the communication winding, bonding structure and support assembly provided in some embodiments of this application;

[0024] Figure 5 An exploded view of a wireless communication coil provided in some embodiments of this application, wherein the communication winding is formed by cutting or laser wire cutting a metal foil sheet;

[0025] Figure 6 An exploded view of a wireless communication coil provided in some other embodiments of this application, wherein the communication winding is formed by etching a flexible circuit board;

[0026] Figure 7 This is a schematic diagram of the structure of a wireless communication coil disk provided in some embodiments of this application.

[0027] Explanation of reference numerals in the attached figures

[0028] 1. Support structure;

[0029] 2. Electrically powered components;

[0030] 3. Communication winding; 31. First winding; 32. Second winding; 3a. First terminal; 3b. Second terminal;

[0031] 4. Adhesive structure;

[0032] 51. First conductor; 52. Second conductor; 53. Third conductor. Detailed Implementation

[0033] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0034] In the description of the embodiments of this application, the orientation or positional relationship of the "thickness direction" is based on Figure 3 , Figure 4 The orientation or positional relationship shown, the "first direction" orientation or positional relationship is based on Figure 7 The orientation or positional relationship shown is for illustrative purposes only and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of this application.

[0035] The various specific technical features and embodiments described in the detailed embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features / embodiments can form different implementation methods. To avoid unnecessary repetition, the various possible combinations of various specific technical features / embodiments in this application will not be described separately. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] It should be noted that in this application, the length unit "mm" refers to millimeters, and the temperature unit "℃" refers to degrees Celsius.

[0037] To facilitate understanding of the wireless communication coil provided in the embodiments of this application, the cooking utensil provided in the embodiments of this application will be described first:

[0038] This application provides a cooking appliance including a wireless communication coil plate as described in any embodiment of this application. The wireless communication coil plate has near-field communication (NFC) functionality, a short-range wireless communication method based on contactless radio frequency identification (RFID) technology. Without requiring an external power source, the communication winding 3 can interact with an induction coil that has a compatible NFC protocol, providing convenience and speed. Both the communication winding 3 and the induction coil operate at the same frequency. Thus, the cooking appliance has communication capabilities, enabling it to interact with other compatible devices, such as mobile terminals, improving the user experience.

[0039] In one embodiment, the cooking appliance includes a cooktop panel disposed above a wireless communication coil. The cooktop panel is used to place other cooking equipment, such as pots and pans, to provide support for the pots and pans.

[0040] In one embodiment, the wireless communication coil includes a power supply coil. That is, the cooking appliance has an electromagnetic heating function. Specifically, after a high-frequency current is applied to the power supply coil, it can generate an electromagnetic field. During the operation of the cooking appliance, if a magnetic cooking device is placed above the cooktop, the magnetic cooking device will resonate in the electromagnetic field and generate eddy currents. Under the action of the eddy currents, the magnetic cooking device gradually heats up, and food is cooked through the high-temperature magnetic cooking device.

[0041] The specific type of cooking appliance is not limited; for example, the cooking appliance may be an induction cooker or an induction stove.

[0042] Please see Figures 1 to 7 This application provides a wireless communication coil, including a support body 1 and an energizing component 2. The energizing component 2 is disposed on one side of the support body 1 along the thickness direction. The energizing component 2 disposed on the support body 1 has a partially stripped structure to form a communication winding 3.

[0043] The support 1 can support the energized component 2, thereby fixing the energized component 2.

[0044] The support 1 has a thickness direction. For example, please refer to... Figure 3 and Figure 4 The support body 1 is roughly plate-shaped, so that the two sides of the support body 1 along the thickness direction are relatively flat, which makes it easy to set the power-conducting component 2 on the support body 1.

[0045] The energized component 2 refers to a conductive structure with good conductivity that can perform a specific function under the drive of external electrical energy. The communication winding 3 refers to a coil or coil group that realizes communication function by achieving data transmission through electromagnetic coupling.

[0046] For example, the communication winding 3 can function as a receiver. When an external device, such as a cooking appliance, is placed on the cooktop, the communication winding 3 receives a signal indicating that the cooking appliance has been placed and sends this signal to the power supply coil. Current is then passed through the power supply coil to generate a magnetic field, causing the cooking appliance to heat up. For example, the communication winding 3 can function as a transmitter. When an external device, such as a mobile terminal, approaches the cooking appliance, the communication winding 3 can send signals containing various cooking modes to the mobile terminal. This allows users to select different cooking modes based on the ingredients, enhancing the user experience. For example, the communication winding 3 can function as a transceiver; that is, the communication winding 3 can both receive and transmit signals.

[0047] The energized component 2, mounted on the support 1, undergoes partial stripping to form the communication winding 3. In other words, the energized component 2 is first fixed to the support 1 as a whole. While the energized component 2 is mounted on the support 1, a portion of its structure is stripped away, leaving the remaining structure to form the communication winding 3, thus enabling communication functionality. This approach offers several advantages. First, the energized component 2 and support 1 are integrated and then processed to form the communication winding 3, eliminating the need for adjustments to the position and spacing of the enameled wire during production, as is required in related technologies, thus reducing manufacturing difficulty. Second, with the energized component 2 fixed to the support 1, it maintains good stability during processing, facilitating operator handling and improving production efficiency. Furthermore, the fixed position of the energized component 2 on the support 1 prevents displacement or deviation after partial stripping, ensuring that the shape and position of the communication winding 3 remain largely unchanged and that its routing meets design requirements.

[0048] For example, the support 1 can be made of an insulating material, thus also serving an insulating function. This prevents the energized component 2 from coming into electrical contact with other conductive components, which could lead to a short circuit and damage.

[0049] The wireless communication coil provided in this application embodiment has several advantages. First, the energized component 2 and the support body 1 are integrally formed into a communication winding 3, eliminating the need to adjust the position and spacing of the enameled wire during production, as is the case in related technologies, thus reducing manufacturing difficulty. Second, the energized component 2 is fixed to the support body 1, maintaining good stability during processing, facilitating operator operation and improving production efficiency. Furthermore, the fixed position of the energized component 2 on the support body 1 ensures that there will be no displacement or deviation after partial structural removal. In other words, the shape and position of the communication winding 3 remain essentially unchanged, thus guaranteeing that the wiring of the communication winding 3 meets the requirements.

[0050] In some embodiments, the support 1 is a heat-resistant structure. That is, the support 1 can still maintain its physical and chemical properties at high temperatures. For example, the support 1 can withstand temperatures of 235°C and above, meaning that the support 1 does not deform at temperatures of 235°C and above. Thus, the support 1 has good high-temperature resistance.

[0051] In one embodiment, the support 1 is a mica sheet. Thus, the support 1 has both good insulation and heat resistance properties.

[0052] In some embodiments, the energized component 2 is a metal foil. The metal foil is a thin sheet of metal that has been stretched, and its thickness can be less than 2 mm.

[0053] Metal foil has good electrical conductivity, enabling it to transmit signals and achieve communication functions when energized. Furthermore, the metal foil is flexible, facilitating its application to the surface of the support 1 along its thickness direction. It also allows workers to easily peel off portions of the energized component 2 to form the communication winding 3, reducing manufacturing difficulty.

[0054] The specific material of the metal foil is not limited. In one embodiment, the metal foil is a copper foil. This results in better communication stability of the communication winding 3. In another embodiment, the metal foil is an aluminum foil. This reduces production costs.

[0055] In some embodiments, please refer to Figure 1 The energized component 2, located on the support 1, has a partially cut or laser-cut structure. In other words, the communication winding 3 is a cut or laser-cut structure.

[0056] A cut structure is a structure made by cutting and shaping. Cutting and shaping is a process in which cutting equipment uses a program-controlled blade to apply shearing force or heat to the electrically conductive component 2 in order to cut the electrically conductive component 2.

[0057] Laser wire-cut structures are structures manufactured by laser wire cutting. Laser wire cutting is a process that uses a high-power-density laser beam to irradiate a conductive component 2, heating the component 2 to its vaporization temperature and causing it to evaporate and form a hole. As the laser beam moves, it cuts the conductive component 2.

[0058] It should be noted that in this embodiment, both cutting and laser wire cutting can be completed by mechanical equipment, thereby reducing manual operation steps, which not only improves production efficiency, but also effectively reduces labor costs.

[0059] In some embodiments, the thickness of the energized component 2 is between 0.05 mm and 1 mm. Exemplarily, the thickness of the energized component 2 can be 0.05 mm, 0.1 mm, 0.15 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, or 1 mm, etc. By setting appropriate dimensions, different design requirements can be met.

[0060] In some embodiments, please refer to Figure 2 The energized component 2 is a flexible circuit board. A flexible circuit board is a flexible structure, meaning it is elastic, bendable, torsionable, and deformable.

[0061] Thus, the fabrication process for flexible circuit boards is mature, and production costs are lower. Furthermore, flexible circuit boards have good heat resistance, which reduces the impact of high temperatures.

[0062] In one embodiment, the flexible circuit board includes a base plate, which is fixed to a support 1. That is, before peeling off a portion of the flexible circuit board structure, the base plate is fixed to the support 1, thus preventing bending or deformation of the base plate and ensuring proper support from the support 1. This prevents problems such as curling or deformation of the flexible circuit board during the peeling process.

[0063] In one embodiment, the base plate is a polyimide structure. That is, the base plate is made of polyimide.

[0064] In one embodiment, the substrate is a polyester film structure. That is, the substrate is made of polyester film.

[0065] In some embodiments, the energized component 2 disposed on the support 1 has a portion of its structure etched away. That is, the communication winding 3 is an etched structure.

[0066] The etched structure is a structure formed by etching. Etching is a process that selectively removes specific areas of the energized component 2 to form the communication winding 3 of the desired shape. The specific etching method is not limited; for example, it can be wet etching, which chemically etches away part of the structure of the energized component 2. Another example is dry etching, which removes part of the structure of the energized component 2 using plasma or a plasma beam. Yet another example is the simultaneous use of wet etching and dry etching.

[0067] In this embodiment, the communication winding 3 is formed by etching the energized component 2, which effectively controls the size of the communication winding 3 and improves the precision of the communication winding 3.

[0068] In some embodiments, the energized component 2 is made of conductive ink. That is, the communication winding 3 has a conductive ink structure. Conductive ink is a functional ink made by dispersing conductive materials (such as metals or carbon-based materials) in a binder. In this way, the resistivity of the energized component 2 is low, which can significantly reduce signal attenuation and electromagnetic interference, and ensure communication stability.

[0069] The conductive ink structure is formed by spray coating. Spray coating is a process in which conductive ink is uniformly sprayed onto the support 1. For example, the conductive ink can be laid flat on one side of the support 1 along the thickness direction, and then processed to form the communication winding 3.

[0070] In related technologies, if the metal foil is first processed into a communication winding and then bonded to the support, the communication winding is prone to curling up; if the support is first coated with adhesive and the communication winding is immediately attached to the support, static electricity may cause the communication winding to curl up, or it may not be able to fully adhere to the mica sheet. In addition, since the communication winding is coil-shaped and the spacing is not fixed, it is easy to deviate during the bonding process.

[0071] In some embodiments, please refer to Figure 3 The support body 1 and the energized component 2 are bonded together via an adhesive structure 4. With the energized component 2 fixed to the support body 1 via the adhesive structure 4, a portion of the structure of the energized component 2 is peeled off to allow it to detach. This results in two advantages: firstly, a larger contact area between the unprocessed energized component 2 and the adhesive structure 4, leading to better bonding and enhanced stability of the connection between the energized component 2 and the support body 1; secondly, bonding the energized component 2 to the support body 1 before processing prevents issues such as coiling of the communication winding 3 when fixed to the support body 1. Furthermore, since the position of the bonded energized component 2 is fixed before processing to form the communication winding 3, the shape and position of the communication winding 3 remain largely unchanged, ensuring that the winding spacing of the communication winding 3 meets the requirements.

[0072] In one embodiment, the adhesive structure 4 is an adhesive.

[0073] In one embodiment, the adhesive structure 4 can be a high-temperature resistant adhesive, which is an adhesive that can maintain good performance in high-temperature environments. For example, the adhesive structure 4 can withstand temperatures of 235°C and above, meaning that the adhesive structure 4 does not deform at temperatures of 235°C and above. Thus, the adhesive structure 4 can still maintain good adhesive performance in high-temperature environments.

[0074] In some embodiments, please refer to Figure 4The entire outer surface of the communication winding 3 is covered by the adhesive structure 4. In this way, the adhesive structure 4 seals the communication winding 3, which not only makes the communication winding 3 more secure and prevents it from falling off the support 1, but also further blocks heat transfer to the communication winding 3, protecting it from being burned out.

[0075] In one embodiment, please refer to Figure 4 The adhesive structure 4 is sandwiched between the two supports 1.

[0076] In some embodiments, please refer to Figure 5 and Figure 6 The communication winding 3 is sandwiched between two supports 1. Specifically, the two supports 1 are respectively located on both sides of the communication winding 3 along its thickness direction. In this way, on the one hand, the connection stability between the communication winding 3 and the supports 1 can be further enhanced. On the other hand, the two supports 1 apply relative forces to the communication winding 3, reducing the risk of problems such as coiling or falling off after the communication winding 3 is formed.

[0077] In this embodiment, since the two supports 1 are respectively set on both sides of the communication winding 3 along the thickness direction, the high temperature resistance is better. Therefore, the bonding structure 4 can also use non-high temperature resistant adhesive to reduce production costs.

[0078] In some embodiments, please refer to Figure 7 The communication winding 3 is double-helixed. That is, the communication winding 3 comprises two helical coils. This design allows the magnetic fields generated by the communication winding 3 to superimpose at their center, significantly enhancing signal strength. Furthermore, it allows for increased length of the communication winding 3 within a limited area while maintaining proper turn spacing, which is beneficial for insulation and heat dissipation. Additionally, it reduces the need for bending in the communication winding 3, thereby extending its service life.

[0079] In one embodiment, please refer to Figure 7 The communication winding 3 includes a first winding 31 and a second winding 32, which are electrically connected and arranged in an alternating spiral pattern. Exemplarily, the first winding 31 and the second winding 32 rotate in the same direction. (See also...) Figure 7 Both the first winding 31 and the second winding 32 can rotate clockwise. Both the first winding 31 and the second winding 32 can also rotate counterclockwise.

[0080] In one embodiment, please refer to Figure 7The wireless communication coil includes a first conductor 51, a second conductor 52, and a third conductor 53. Both the first winding 31 and the second winding 32 extend spirally outwards from the first endpoint 3a in opposite directions. The first endpoint 3a is connected to an external electrode, such as an anode, via the first conductor 51. Exemplarily, the first endpoint 3a can be the connection point between the beginnings of both the first winding 31 and the second winding 32.

[0081] Please continue reading. Figure 7 The second endpoint 3b of the first winding 31 and the second endpoint 3b of the second winding 32 are located on opposite sides of the first endpoint 3a along the first direction. The second endpoint 3b of the first winding 31 can be the tail end of the first winding 31, and the second endpoint 3b of the second winding 32 can be the tail end of the second winding 32. The second endpoints 3b of both the first winding 31 and the second winding 32 are connected to an external electrode, such as a cathode, via a second wire 52 and a third wire 53. The second endpoints 3b of the first winding 31 and the second endpoints 3b of the second winding 32 are symmetrical about the center of the first endpoint 3a. The second wire 52 connects the second endpoints 3b of the first winding 31 and the second endpoints 3b of the second winding 32, and the third wire 53 connects the second wire 52 and the external electrode. In this way, the first winding 31 and the second winding 32 form a symmetrical loop, which can cancel common-mode noise and reduce signal interference. In addition, the symmetrical routing of the first winding 31 and the second winding 32 effectively disperses stress, making the stress borne by the support 1 relatively uniform and reducing the risk of cracking of the support 1.

[0082] It should be noted that "inner" refers to the side closer to the first endpoint 3a in the first direction, while "outer" refers to the opposite direction to "inner" and the side further away from the first endpoint 3a in the first direction.

[0083] In the description of this specification, the references to "an embodiment," "another embodiment," "some embodiments," "other embodiments," and "exemplary" refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0084] The various embodiments / implementations provided in this application can be combined with each other without creating contradictions. The above descriptions are merely preferred embodiments of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wireless communication coil disk, characterized in that, include: Support structure; A power-conducting component is disposed on one side of the support body along the thickness direction. The power-conducting component disposed on the support body has a stripped portion structure to form a communication winding.

2. The wireless communication coil disk according to claim 1, characterized in that, The energized component is a metal foil.

3. The wireless communication coil disk according to claim 2, characterized in that, The electrically conductive components located on the support body have their structures partially cut or laser-cut.

4. The wireless communication coil disk according to claim 2, characterized in that, The thickness of the energized component is between 0.05 mm and 1 mm.

5. The wireless communication coil disk according to claim 1, characterized in that, The energized component is a flexible circuit board.

6. The wireless communication coil disk according to claim 5, characterized in that, The electrically conductive components disposed on the support body have their structures partially etched away.

7. The wireless communication coil disk according to claim 1, characterized in that, The energized component is made of conductive ink.

8. The wireless communication coil disk according to claim 1, characterized in that, The support body and the electrically conductive component are bonded together by an adhesive structure.

9. The wireless communication coil disk according to claim 8, characterized in that, The entire outer surface of the communication winding is covered by the adhesive structure.

10. The wireless communication coil according to any one of claims 1 to 9, characterized in that, The communication winding is sandwiched between the two supports.

11. The wireless communication coil according to any one of claims 1 to 9, characterized in that, The communication winding is in the form of a double helix.

12. A cooking utensil, characterized in that, Includes the wireless communication coil disk as described in any one of claims 1 to 11.

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