Electromagnetic heating device and cooking utensil

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses an electromagnetic heating device and a cooking utensil, the electromagnetic heating device comprises a wire coil, the wire coil is provided with a bottom wire winding area and a side wire winding area, the wire coil is provided with a wire pressing arm, a wire winding space used for winding an electromagnetic coil is formed between the wire pressing arm and the side wire winding area, and the electromagnetic heating device further comprises a stop piece, the stop piece is arranged at one end, far away from the center of the wire coil, of the wire pressing arm and is used for stopping and limiting the electromagnetic coil from loosening together with the electromagnetic coil, so that the stability of the electromagnetic coil is improved, the quality stability of the electromagnetic heating device is improved, the assembling difficulty of the electromagnetic heating device is reduced, and the assembling efficiency of the electromagnetic heating device is improved; the cooking utensil comprises a pot cover, a pot body and the electromagnetic heating device, an inner container is arranged in the pot body, the pot cover and the inner container jointly form a sealed cooking cavity, and the electromagnetic heating device is arranged in the pot body and located at the bottom of the inner container.

Description

Technical Field

[0001] The present application belongs to the technical field of kitchen appliances, and specifically relates to an electromagnetic heating device and a cooking utensil. Background Art

[0002] Cooking utensils are essential kitchen appliances in daily life. In order to obtain higher heating efficiency and heating uniformity, some models use electromagnetic heating devices as heating devices to heat by electromagnetic heating.

[0003] An existing electromagnetic heating device includes a disk and an electromagnetic coil formed by winding a wire around the disk. There are usually two ways to wind the wire. One is to wind the wire sparsely around the disk, that is, there is a gap between two adjacent turns of the wire to reduce the requirements for wire insulation, but this method will affect the electromagnetic induction intensity of the electromagnetic coil, thereby affecting the heating efficiency of the electromagnetic heating device; the other is to wind the wire densely around the disk, that is, the two adjacent turns of the wire are in contact with each other to increase the electromagnetic induction intensity of the electromagnetic coil, thereby increasing the heating efficiency of the electromagnetic heating device; since the way the wire is sparsely wound around the disk affects the heating efficiency of the electromagnetic heating device, the way the wire is densely wound around the disk is more common.

[0004] Regarding the method of winding the wire tightly around the disk, the wire is fixed to the disk by gluing. However, when the wire is electrically connected to other components, if the pulling force on the wire is small, it will increase the difficulty of electrically connecting the wire to other components; if the pulling force on the wire is large, the wire will be pulled out, which will affect the heating efficiency of the electromagnetic heating device, making it difficult to control the pulling force on the electromagnetic coil, thereby increasing the difficulty of assembling the electromagnetic heating device. In particular, for the solution in which the disk has a bottom winding area and a side winding area, the bottom winding area is relatively flat, while the side winding area is a circular arc surface, which exacerbates the above problem. Utility Model Content

[0005] The present application provides an electromagnetic heating device and a cooking utensil to increase the connection stability of the electromagnetic coil and reduce the difficulty of assembling the electromagnetic heating device.

[0006] The technical solution adopted in this application is:

[0007] An electromagnetic heating device comprises a wire drum, wherein the wire drum has a bottom winding area and a side winding area, the wire drum is provided with a wire pressing arm, and a winding space for winding an electromagnetic coil is formed between the wire pressing arm and the side winding area. The electromagnetic heating device also comprises a stopper, which is arranged at one end of the wire pressing arm away from the center of the wire drum, so as to stop the electromagnetic coil from loosening.

[0008] The electromagnetic heating device described in this application also includes the following additional technical features:

[0009] The stopper is detachably fixed to the wire pressing arm.

[0010] The wire pressing arm is provided with a matching groove, and at least a partial area of ​​the stopper is located in the matching groove.

[0011] The stopper is a structure made of elastic material, and the stopper is sleeved on the wire pressing arm.

[0012] The electromagnetic heating device also includes an electromagnetic coil wound in the winding space, the electromagnetic coil has a winding end, and the stopper can cooperate with the winding end to limit the electromagnetic coil from loosening.

[0013] The wire pressing arm is provided with a clamping groove to form the stopper, and the winding end is clamped and fixed in the clamping groove.

[0014] The clamping groove is located at a side of the wire pressing arm away from the winding space.

[0015] The wire pressing arm comprises a fixed section connected to the wire drum and a free section extending from the fixed section, the thickness of the fixed section is greater than the thickness of the free section, and the stopper is arranged on the free section.

[0016] The wire pressing arm has a fixed end close to the center of the wire drum and a free end away from the center of the wire drum, the stopper is arranged at the free end, and the fixed end is provided with an annular rib extending along the circumference of the wire drum.

[0017] The present application also discloses a cooking utensil, comprising a pot cover and a pot body, wherein the pot body is provided with an inner pot, wherein the pot cover and the inner pot together form a sealed cooking cavity, and further comprising the electromagnetic heating device as described above, wherein the electromagnetic heating device is arranged inside the pot body and located at the bottom of the inner pot.

[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0019] 1. The electromagnetic heating device in the present application includes a wire reel, which has a bottom winding area and a side winding area. The wire reel is provided with a wire pressing arm, and a winding space for winding an electromagnetic coil is formed between the wire pressing arm and the side winding area. The electromagnetic heating device also includes a stopper, which is arranged at one end of the wire pressing arm away from the center of the wire reel, so as to limit the loosening of the electromagnetic coil with the electromagnetic coil stopper. That is to say, after the electromagnetic coil is wound, when the electromagnetic coil is pulled, the stopper blocks the electromagnetic coil so that the unpulled part of the electromagnetic coil is in a relatively static state, thereby reducing the risk of the electromagnetic coil being easily pulled out when a large pulling force is applied to the electromagnetic coil, thereby increasing the stability of the electromagnetic coil and improving the quality stability of the electromagnetic heating device. At the same time, the pulling force applied by the assembler to the electromagnetic coil is within a relatively easy to control range, which ensures that the wound electromagnetic coil will not loosen when the pulling force is small, and ensures that the electromagnetic coil will not be pulled out when the pulling force is large, thereby reducing the difficulty of assembling the electromagnetic heating device and improving the assembly efficiency of the electromagnetic heating device. Moreover, after the electromagnetic coil is wound onto the reel and before the glue fixing the electromagnetic coil dries, the stopper can also block the electromagnetic coil to reduce the risk of the wound electromagnetic coil breaking due to its own toughness, thereby increasing the fixing effect of the electromagnetic coil and further improving the quality stability of the electromagnetic heating device.

[0020] 2. As a preferred embodiment of the present application, the stopper is detachably fixed to the wire crimping arm, that is, the stopper and the wire crimping arm are separately arranged, so that the stopper can be assembled with the wire crimping arm after the electromagnetic coil is assembled to the wire reel, so as to ensure the smoothness of the assembly of the electromagnetic coil, reduce the difficulty of assembling the electromagnetic coil, and thus improve the assembly efficiency of the electromagnetic coil; at the same time, the stopper is detachably fixed to the wire crimping arm, which can reduce the production difficulty of the wire crimping arm and reduce the production cost of the wire crimping arm; and the installation position of the stopper can be adjusted to ensure the blocking effect of the stopper on the electromagnetic coil, so as to further ensure the quality stability of the electromagnetic heating device.

[0021] 3. As a preferred embodiment of the present application, the wire pressing arm is provided with a matching groove, and at least part of the stopper is located in the matching groove, so that the groove wall of the matching groove can block the stopper, thereby increasing the connection stability between the stopper and the wire pressing arm, avoiding the stopper from falling off under the push of the electromagnetic coil, and increasing the blocking effect of the stopper on the electromagnetic coil, thereby further ensuring the stability of the electromagnetic coil. At the same time, the matching groove makes the installation position of the stopper more eye-catching, so that the assembler can quickly find the installation position of the stopper, so as to improve the assembly efficiency of the stopper.

[0022] 4. As a preferred embodiment of the present application, the stopper is a structure made of elastic material, and the stopper is sleeved on the wire-pressing arm, so that the stopper is in elastic contact with the electromagnetic coil, so as to reduce the risk of damage to the electromagnetic coil caused by the stopper while ensuring the blocking effect of the stopper on the electromagnetic coil, thereby further ensuring the quality stability of the electromagnetic heating device. At the same time, the stopper is sleeved on the wire-pressing arm, so that the stopper is in elastic contact with the wire-pressing arm, so as to increase the friction between the stopper and the wire-pressing arm, thereby increasing the connection stability between the stopper and the wire-pressing arm. In addition, the stopper is a structure made of elastic material, so that the size of the stopper can change elastically, so that the stopper can be adapted to wire-pressing arms of different sizes, so as to optimize the design of the wire-pressing arm separately and increase the flexibility of the stopper.

[0023] 5. As a preferred embodiment of the present application, the wire crimping arm has a fixed section connected to the wire reel and a free section extending from the fixed section, the thickness of the fixed section is greater than the thickness of the free section to increase the connection strength between the wire crimping arm and the wire reel, thereby increasing the stability of the wire crimping arm, and the stopper is arranged at the free section to reduce the size of the stopper, thereby reducing the amount of consumables of the stopper, so as to reduce the production cost of the stopper, and at the same time reduce the influence of the stopper on the volume of the electromagnetic heating device, thereby facilitating the miniaturization design of the electromagnetic heating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 This is a schematic structural diagram of an electromagnetic heating device according to one embodiment of the present application;

[0026] Figure 2 for Figure 1 A magnified view of the middle A area;

[0027] Figure 3 This is a schematic diagram of the explosion structure of the electromagnetic heating device according to one embodiment of the present application;

[0028] Figure 4 A partial structural cross-sectional view of the electromagnetic heating device according to one embodiment of the present application;

[0029] Figure 5 for Figure 4 Enlarged view of the B area;

[0030] Figure 6 This is a schematic diagram of the structure of the wire drum in one embodiment of the present application;

[0031] Figure 7 This is a schematic structural diagram of an electromagnetic heating device according to another embodiment of the present application;

[0032] Figure 8 This is a schematic diagram of the structure of the wire drum in another embodiment of the present application;

[0033] Fig. 9 for Figure 8 Magnified view of area C in the middle.

[0034] Reference numerals:

[0035] 1. Wire drum; 11. Bottom winding area; 12. Side winding area; 2. Wire pressing arm; 21. Fixed section; 211. Annular rib; 212. Fixed column; 22. Free section; 221. Matching groove; 3. Stopper; 4. Electromagnetic coil; 5. Magnetic strip frame; 51. Extension arm; 511. Connecting rib; 52. Magnetic part. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0038] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0041] Reference Figures 1 to 9 An electromagnetic heating device includes a wire drum 1, the wire drum 1 has a bottom winding area 11 and a side winding area 12, the wire drum 1 is provided with a wire pressing arm 2, and a winding space for winding an electromagnetic coil 4 is formed between the wire pressing arm 2 and the side winding area 12. The electromagnetic heating device also includes a stopper 3, which is arranged at one end of the wire pressing arm 2 away from the center of the wire drum 1, so as to stop the electromagnetic coil 4 from loosening.

[0042] It is understandable that after the electromagnetic coil 4 is wound, when the electromagnetic coil 4 is pulled, the stopper 3 blocks the electromagnetic coil 4 so that the unpulled portion of the electromagnetic coil 4 is in a relatively static state, thereby reducing the risk of the electromagnetic coil 4 being easily pulled out when a large pulling force is applied to the electromagnetic coil 4, thereby increasing the stability of the electromagnetic coil 4 and improving the quality stability of the electromagnetic heating device. At the same time, it enables the assembler to apply the pulling force on the electromagnetic coil 4 within a relatively easy-to-control range, thereby reducing the difficulty of assembling the electromagnetic heating device and improving the assembly efficiency of the electromagnetic heating device. In addition, after the electromagnetic coil 4 is wound onto the reel 1 and before the glue fixing the electromagnetic coil 4 is dry, the stopper 3 can also block the electromagnetic coil 4 to reduce the risk of the wound electromagnetic coil 4 breaking due to its own toughness, thereby increasing the fixing effect of the electromagnetic coil 4 and further improving the quality stability of the electromagnetic heating device.

[0043] The present application does not specifically limit the connection method between the stopper 3 and the wire pressing arm 2, and it can adopt any one of the following embodiments:

[0044] Embodiment 1. In this embodiment, referring to Figures 1 to 5 The stopper 3 is detachably fixed to the wire pressing arm 2 .

[0045] That is to say, the stopper 3 and the wire crimping arm 2 are separately arranged, so that the stopper 3 can be assembled with the wire crimping arm 2 after the electromagnetic coil 4 is assembled to the wire reel 1, thereby avoiding the situation where the stopper 3 interferes with the electromagnetic coil 4 during the winding process, so as to ensure the smoothness of the assembly of the electromagnetic coil 4, reduce the difficulty of assembling the electromagnetic coil 4, and thus improve the assembly efficiency of the electromagnetic coil 4; at the same time, the stopper 3 is detachably fixed to the wire crimping arm 2, which can reduce the production difficulty of the wire crimping arm 2 and reduce the production cost of the wire crimping arm 2; and the installation position of the stopper 3 can be adjusted to ensure the blocking effect of the stopper 3 on the electromagnetic coil 4, so as to further ensure the quality stability of the electromagnetic heating device.

[0046] In a preferred embodiment, referring to Figure 2 , Figure 3 and Figure 6 The wire pressing arm 2 is provided with a matching groove 221, and at least part of the stopper 3 is located in the matching groove 221, so that the groove wall of the matching groove 221 can block the stopper 3, thereby increasing the connection stability between the stopper 3 and the wire pressing arm 2, and preventing the stopper 3 from falling off under the push of the electromagnetic coil 4, so as to increase the blocking effect of the stopper 3 on the electromagnetic coil 4, and further ensure the stability of the electromagnetic coil 4. At the same time, the matching groove 221 makes the installation position of the stopper 3 more eye-catching, so that the assembler can quickly find the installation position of the stopper 3, so as to improve the assembly efficiency of the stopper 3.

[0047] The present application does not specifically limit the position of the matching groove 221. Preferably, refer to Figure 2 , Figure 3 and Figure 6 The matching groove 221 is arranged on the side wall of the wire pressing arm 2 to increase the stopping effect of the groove wall of the matching groove 221 on the stopper 3, so as to further increase the connection stability between the stopper 3 and the wire pressing arm 2, thereby further increasing the blocking effect on the electromagnetic coil 4. In other implementation examples, the matching groove 221 can also be arranged on the side of the wire pressing arm 2 away from the winding space.

[0048] In this embodiment, the structure of the stopper 3 is not specifically limited, and it can adopt any one of the following embodiments:

[0049] Embodiment 1, in this embodiment, refer to Figure 2 and Figure 3 The stopper 3 is an annular structure sleeved on the wire pressing arm 2 to increase the connection area between the stopper 3 and the wire pressing arm 2, thereby increasing the connection stability between the stopper 3 and the wire pressing arm 2.

[0050] The present application does not specifically limit the formation method of the stopper 3, and it can adopt any one of the following implementation examples:

[0051] Implementation example 1, in this implementation example, the stopper 3 is a cable tie mounted on the wire crimping arm 2, so that the stopper 3 is formed after the tail section of the cable tie is removed, so as to reduce the difficulty of assembling the stopper 3 and improve the assembly efficiency of the stopper 3.

[0052] Implementation Example 2: In this implementation example, the stopper 3 is a structure made of elastic material, and the stopper 3 is sleeved on the wire pressing arm 2.

[0053] That is to say, the stopper 3 is an annular structure made of elastic material, so that the stopper 3 and the electromagnetic coil 4 are in elastic contact, so as to reduce the risk of damage to the electromagnetic coil 4 caused by the stopper 3 while ensuring the blocking effect of the stopper 3 on the electromagnetic coil 4, thereby further ensuring the quality stability of the electromagnetic heating device. At the same time, the stopper 3 is sleeved on the wire pressing arm 2, so that the stopper 3 and the wire pressing arm 2 are in elastic contact, so as to increase the friction between the stopper 3 and the wire pressing arm 2, and then increase the connection stability between the stopper 3 and the wire pressing arm 2. In addition, the stopper 3 is a structure made of elastic material, so that the size of the stopper 3 can be elastically changed, so that the stopper 3 can be adapted to wire pressing arms 2 of different sizes, so as to optimize the design of the wire pressing arm 2 separately and increase the flexibility of the stopper 3.

[0054] The present application does not specifically limit the elastic material, which may be silicone, rubber or other elastic materials.

[0055] Embodiment 2: In this embodiment, the stopper 3 is a C-shaped structure that is clamped on the wire pressing arm 2 to reduce the difficulty of assembling the stopper 3 and achieve the effect of facilitating the assembly of the stopper 3.

[0056] Implementation method 2. In this implementation method, refer to Figure 7 , Figure 8 and Fig. 9 The electromagnetic coil 4 has a winding end, and the wire pressing arm 2 is provided with a clamping groove to form a stopper 3, and the winding end is clamped and fixed in the clamping groove.

[0057] That is to say, the stopper 3 is integrally formed with the wire crimping arm 2, thereby increasing the stability of the stopper 3, thereby increasing the blocking effect of the stopper 3 on the winding end, thereby increasing the stability of the electromagnetic coil 4, and at the same time reducing the number of parts required to be assembled when assembling the electromagnetic heating device, thereby improving the assembly efficiency of the electromagnetic heating device.

[0058] The present application does not specifically limit the position of the card slot. Preferably, refer to Figure 7 , Figure 8 and Fig. 9The clamping groove is located on the side of the wire crimping arm 2 away from the winding space to further increase the connection stability between the winding end and the clamping groove; at the same time, the winding end can be extended along the circumference of the wire drum 1 to facilitate the electrical connection of the winding end with other components. In other embodiments, the clamping groove can also be located on the side of the wire crimping arm 2.

[0059] Since the clamping groove is located on the side of the wire pressing arm 2 away from the winding space, the clamping groove and the electromagnetic coil 4 during the winding process are avoided to ensure the smoothness of the winding process of the electromagnetic coil 4. After the electromagnetic coil 4 is wound, the winding end is bent in the direction away from the line drum 1 and the winding end is clamped into the clamping groove to achieve stopping of the winding end.

[0060] The present application does not specifically limit the formation method of the card slot. Preferably, refer to Figure 7 , Figure 8 and Fig. 9 The wire crimping arm 2 has a fixed section 21 and a free section 22. The thickness of the fixed section 21 is greater than that of the free section 22. The free section 22 is provided with a clamping rib. The clamping rib and the end wall of the fixed section 21 form a clamping groove together, so as to increase the clamping effect of the clamping groove on the winding end while ensuring the structural strength of the wire crimping arm 2. In other embodiments, the clamping groove can also be formed by cutting the wire crimping arm 2 or by plastic avoidance during the molding process.

[0061] In a preferred embodiment, referring to Figure 1 , Figure 3 , Figure 5 and Figure 7 The electromagnetic heating device also includes an electromagnetic coil 4 wound in the winding space, and the electromagnetic coil 4 has a winding end. The stopper 3 can cooperate with the winding end to limit the loosening of the electromagnetic coil 4, so as to further increase the blocking effect of the stopper 3 on the electromagnetic coil 4, thereby further ensuring the stability of the electromagnetic coil 4.

[0062] In a preferred embodiment, referring to Figure 2 , Figure 5 and Fig. 9 The wire pressing arm 2 has a fixed section 21 connected to the wire drum 1 and a free section 22 extending from the fixed section 21 . The thickness of the fixed section 21 is greater than that of the free section 22 . The stopper 3 is arranged on the free section 22 .

[0063] Since the thickness of the fixed section 21 is greater than the thickness of the free section 22, the connection strength between the wire pressing arm 2 and the wire drum 1 is increased, thereby increasing the stability of the wire pressing arm 2. At the same time, the stopper 3 is arranged at the free section 22 to reduce the size of the stopper 3, thereby reducing the amount of consumables of the stopper 3, thereby reducing the production cost of the stopper 3, and at the same time reducing the influence of the stopper 3 on the volume of the electromagnetic heating device, thereby facilitating the miniaturization design of the electromagnetic heating device.

[0064] In a preferred embodiment, referring to Figure 3 and Figure 8 The wire pressing arm 2 has a fixed end close to the center of the wire drum 1 and a free end away from the center of the wire drum 1. The stopper 3 is arranged at the free end, and the fixed end is provided with an annular rib 211 extending along the circumference of the wire drum 1.

[0065] Since the stopper 3 is arranged at the free end and the free end is arranged away from the center of the wire drum 1, the side of the stopper 3 close to the center of the wire drum 1 can be wound with more turns of the electromagnetic coil 4 to ensure the heating efficiency of the electromagnetic heating device. The annular rib 211 is arranged to extend along the circumference of the wire drum 1 so that the annular rib 211 can support the electromagnetic coil 4 located on the inner side to make the winding of the electromagnetic coil 4 more regular. At the same time, the annular rib 211 can make the electromagnetic coil 4 located on the inner side transition smoothly at the fixed end to reduce the pressure between the electromagnetic coil 4 and the fixed end, thereby reducing the risk of damage to the electromagnetic coil 4, so as to further ensure the quality stability of the electromagnetic heating device.

[0066] The present application does not specifically limit the connection method between the annular rib 211 and the wire drum 1. Preferably, refer to Figure 3 and Figure 8 The annular rib 211 is integrally formed with the wire drum 1 to increase the stability of the annular rib 211, thereby increasing the supporting effect of the annular rib 211 on the electromagnetic coil 4. At the same time, the structural strength of the wire drum 1 can be increased to increase the service life of the electromagnetic heating device. In other embodiments, there is a gap between the bottom of the annular rib 211 and the wire drum 1, so that the heat generated by the electromagnetic coil 4 can be dissipated through the gap between the annular rib 211 and the wire drum 1, so as to improve the heat dissipation effect of the electromagnetic coil 4 and ensure the heating efficiency of the electromagnetic heating device.

[0067] In a preferred embodiment, referring to Figure 1 , Figure 3 , Figure 6 , Figure 7 and Figure 8 A plurality of wire pressing arms 2 are arranged at intervals along the circumference of the wire drum 1 to increase the limit position of the electromagnetic coil 4, thereby increasing the connection stability between the electromagnetic coil 4 and the wire drum 1, and further improving the quality of the electromagnetic heating device, so as to achieve the effect of increasing the service life of the electromagnetic heating device.

[0068] In a preferred embodiment, referring to Figure 1 , Figure 3 and Figure 7 The electromagnetic heating device also includes a magnetic strip frame 5 arranged on the wire drum 1, and the magnetic strip frame 5 has a plurality of extension arms 51, and each extension arm 51 is provided with a magnetic member 52 to increase the heating efficiency of the electromagnetic heating device, and the plurality of extension arms 51 are staggered with the plurality of wire pressing arms 2 along the circumference of the wire drum 1, so that the extension arms 51 and the wire pressing arms 2 avoid each other, so as to achieve the effect of facilitating the assembly of the magnetic strip frame 5.

[0069] Further, see Figure 1 , Figure 3 and Figure 7 The magnetic stripe frame 5 is provided with a connecting rib 511 connected to the extension arm 51, and the wire pressing arm 2 is provided with a fixing column 212. The connecting rib 511 is provided with a screw threadedly connected to the fixing column 212 to achieve a fixed connection between the magnetic stripe frame 5 and the wire drum 1, thereby increasing the stability of the magnetic stripe frame 5 and achieving the effect of facilitating the fixing of the magnetic stripe frame 5.

[0070] Better, refer to Figure 1 , Figure 3 and Figure 7 The two ends of the connecting rib 511 are respectively connected to two adjacent extension arms 51, so that the connecting rib 511 connects the two adjacent extension arms 51 into one, so as to increase the stability of the extension arms 51, thereby increasing the structural strength of the magnetic strip frame 5, so as to further increase the service life of the electromagnetic heating device.

[0071] The present application also discloses a cooking utensil, which includes a pot cover, a pot body and the above-mentioned electromagnetic heating device. An inner pot is arranged in the pot body. The pot cover and the inner pot together form a sealed cooking cavity. The electromagnetic heating device is arranged inside the pot body and at the bottom of the inner pot.

[0072] Due to the use of the electromagnetic heating device, the quality stability of the cooking utensil is increased, the difficulty of assembling the cooking utensil is reduced, and the production efficiency of the cooking utensil is improved.

[0073] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0074] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0075] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An electromagnetic heating device, comprising a wire drum, wherein the wire drum has a bottom winding area and a side winding area, characterized in that: The wire drum is provided with a wire pressing arm, and a winding space for winding the electromagnetic coil is formed between the wire pressing arm and the side winding area. The electromagnetic heating device also includes a stopper, which is arranged at one end of the wire pressing arm away from the center of the wire drum to stop the electromagnetic coil from loosening.

2. An electromagnetic heating device according to claim 1, characterized in that: The stopper is detachably fixed to the wire pressing arm.

3. An electromagnetic heating device according to claim 2, characterized in that: The wire pressing arm is provided with a matching groove, and at least a partial area of ​​the stopper is located in the matching groove.

4. The electromagnetic heating device according to claim 2, characterized in that: The stopper is a structure made of elastic material, and the stopper is sleeved on the wire pressing arm.

5. The electromagnetic heating device according to claim 1, characterized in that: The electromagnetic heating device also includes an electromagnetic coil wound in the winding space, the electromagnetic coil has a winding end, and the stopper can cooperate with the winding end to limit the electromagnetic coil from loosening.

6. The electromagnetic heating device according to claim 5, characterized in that: The wire pressing arm is provided with a clamping groove to form the stopper, and the winding end is clamped and fixed in the clamping groove.

7. An electromagnetic heating device according to claim 6, characterized in that: The clamping groove is located at a side of the wire pressing arm away from the winding space.

8. The electromagnetic heating device according to claim 1, characterized in that: The wire pressing arm comprises a fixed section connected to the wire drum and a free section extending from the fixed section, the thickness of the fixed section is greater than the thickness of the free section, and the stopper is arranged on the free section.

9. The electromagnetic heating device according to claim 1, characterized in that: The wire pressing arm has a fixed end close to the center of the wire drum and a free end away from the center of the wire drum, the stopper is arranged at the free end, and the fixed end is provided with an annular rib extending along the circumference of the wire drum.

10. A cooking utensil, comprising a pot cover and a pot body, characterized in that: The pot body is provided with an inner pot, the pot cover and the inner pot together form a sealed cooking cavity, and also includes an electromagnetic heating device as described in any one of claims 1 to 9 above, wherein the electromagnetic heating device is arranged inside the pot body and located at the bottom of the inner pot.

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