Switch structure of cooking electrical appliance and cooking electrical appliance

Abstract

The utility model provides a kind of switch structure and cooking electrical appliance of cooking electrical appliance, and cooking electrical appliance includes door assembly and cooking main body, switch structure includes at least one magnetic induction component, and magnetic induction component includes magnet and magnetic induction device, magnet is arranged in the inside of one of door assembly and magnetic induction device, and magnetic induction device is correspondingly arranged in the inside of another, and magnetic induction device can connect the circuit of cooking electrical appliance when door assembly is closed, and also can cut off the circuit of cooking electrical appliance when door assembly is opened.The utility model sets up magnetic induction component between door assembly and cooking main body, hides the component corresponding to magnetic induction component completely in door assembly and cooking main body, there is no any projection, door hook on appearance, also there is no corresponding mechanical lock catch, overall structure is simple and reliable, in addition, the series connection setting of magnetic induction device and third microswitch can effectively control cooking electrical appliance to start only under the condition that door assembly is closed well, improve the use safety of electrical appliance.

Description

Technical Field

[0001] This utility model relates to the field of cooking appliance technology, and more specifically, to a switch structure for a cooking appliance and a cooking appliance. Background Technology

[0002] Traditional cooking appliances typically use relatively concealed mechanical structures for their switches, locking or unlocking via a plastic sliding mechanism, or by adding a door hook to the door and engaging a micro switch on the switch bracket behind the front panel. However, the plastic sliding unlocking structure is prone to failure, affecting the user experience, while the structure using a door hook results in a large door hook on the door assembly, which is aesthetically unappealing.

[0003] Chinese patent CN202221194876.0 discloses an interlocking switch mechanism, an interlocking kit, and an oven. The interlocking switch mechanism includes a lock body and a door hook. The lock body includes an interlocking bracket, an interlocking rotating arm, and a torsion spring. The torsion spring has a first torsion foot and a second torsion foot. The interlocking bracket is provided with a fixed post and an arc-shaped limiting hole. The interlocking rotating arm is provided with a hook and a limiting post, and a fixed hole is also provided in the middle of the interlocking rotating arm. The fixed post passes through the fixed hole and is movably connected to the interlocking rotating arm, and the limiting post passes through the arc-shaped limiting hole. The first torsion foot is connected to the interlocking rotating arm, and the second torsion foot is fixed to the interlocking bracket. The door hook is used to be installed on the oven door, and the lock body is used to be installed on the oven body. When the oven door is closed, the door hook is inserted into the lock body and engages with the hook. The torsion spring is in the first position, and the elastic force generated by the first and second torsion feet pushes the limiting post into one side of the arc-shaped limiting hole. At the same time, the elastic force limits the interlocking rotating arm to lock the oven door. This patent uses a door hook structure to open and close the door assembly. On the one hand, the structure of the door hook affects the aesthetics of the product, and on the other hand, there is a lack of corresponding detection methods to determine whether the door assembly is closed. When the door assembly is not properly closed, running the oven will affect the cooking effect and also pose certain safety hazards. Utility Model Content

[0004] The present invention aims to propose a switch structure for a cooking appliance, which adopts a concealed structural design, eliminates the need for mechanical locks, and has no external hooks or other components, resulting in a simple and reliable overall structure.

[0005] This utility model discloses a switch structure for a cooking appliance. The cooking appliance includes a door assembly and a cooking body. The switch structure includes at least one magnetic sensing component disposed between the door assembly and the cooking body. The magnetic sensing component includes a magnet and a magnetic sensing device. The magnet is disposed inside one of the door assembly and the magnetic sensing device, and the magnetic sensing device is disposed inside the other of the door assembly and the magnetic sensing device. The magnetic sensing device can connect the circuit of the cooking appliance when the door assembly is closed and disconnect the circuit of the cooking appliance when the door assembly is open.

[0006] Furthermore, the cooking body includes a cavity assembly and a panel assembly. When the door assembly is closed, the panel assembly is located on the upper side of the door assembly, and the magnetic sensing assembly is disposed between the door assembly and the cavity assembly and / or the panel assembly.

[0007] Furthermore, the door assembly includes a door body and a cover plate, the door body and the cover plate are connected in a mating manner, a mounting groove is provided on the side of the cover plate facing the door body, the magnet is disposed in the mounting groove, and a pressure block is provided between the door body and the cover plate, the pressure block is pressed against the magnet for fixing the magnet.

[0008] Furthermore, the cavity assembly includes a front panel and a side heat insulation panel. The magnetic sensing device is disposed on the side of the front panel away from the door assembly and located on the outside of the side heat insulation panel. The magnetic sensing device is disposed corresponding to a magnet.

[0009] Furthermore, the cavity assembly also includes a cavity heat insulation plate, and the magnetic sensing assembly also includes a fixing bracket. The fixing bracket includes a bracket body, which is a hollow structure. The magnetic sensing device is disposed inside the bracket body, and at least one buckle is provided on the bracket body. The buckle engages with the cavity heat insulation plate.

[0010] Furthermore, a limiting hole is provided at the end of the bracket body away from the front plate. The limiting hole is used to cooperate with the lead wire of the magnetic induction device to limit its movement and prevent the magnetic induction device from rotating inside the bracket body. A fish-shaped tail buckle is provided at the end of the bracket body away from the front plate. A cable tie through hole is provided on the cavity heat insulation plate. After the lead wire of the magnetic induction device passes through the limiting hole, it cooperates with the fish-shaped tail buckle and is secured by the cable tie through the cable tie through the through hole.

[0011] Furthermore, an air guide cover is provided on the front side of the cavity assembly. The air guide cover is located on the lower side of the panel assembly. A positioning hole groove is provided on the air guide cover. The magnetic sensing device is disposed in the positioning hole groove and is correspondingly disposed with the magnet in the door assembly.

[0012] Furthermore, a switch assembly is also provided within the cooking body. The switch assembly includes a first micro switch, a second micro switch, and a third micro switch. The first and second micro switches are high-voltage switches, and the third micro switch is a low-voltage switch. The third micro switch is connected in series with a magnetic induction device. A high-voltage actuation post and a low-voltage actuation post are provided on the door assembly. The high-voltage actuation post is corresponding to the first and second micro switches, and the low-voltage actuation post is corresponding to the third micro switch.

[0013] Furthermore, the magnetic sensing device is a reed switch.

[0014] This utility model also discloses a cooking appliance, including the switch structure of the cooking appliance as described above.

[0015] The cooking appliance described above has the same advantages over the prior art as the aforementioned switch structure, and will not be repeated here.

[0016] Compared with the prior art, the switching structure and cooking appliance of the present invention have the following advantages:

[0017] By incorporating a magnetic induction component between the door assembly and the cooking body, the corresponding parts of the magnetic induction component can be completely concealed within both the door assembly and the cooking body. There are no protrusions, door hooks, or corresponding mechanical latches on the exterior. The overall structure is simple, reliable, and low-cost. Furthermore, the series connection between the magnetic induction device and the third micro switch within the magnetic induction component effectively controls the cooking appliance to only start when the door assembly is properly closed, significantly improving the appliance's safety. The switch structure provided by this invention is simple in structure, convenient and safe to use, and significantly enhances the product's aesthetics and user experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the cooking appliance described in this embodiment of the utility model;

[0019] Figure 2 This is a partial structural diagram of the cooking appliance described in Embodiment 1 of this utility model;

[0020] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0021] Figure 4 This is an exploded structural diagram of a portion of the cooking appliance described in Embodiment 1 of this utility model;

[0022] Figure 5 This is an exploded view of a partial structure of the cooking appliance described in Embodiment 1 of this utility model from another angle;

[0023] Figure 6 This is a partial structural diagram of the door assembly of the cooking appliance described in Embodiment 1 of this utility model when it is opened;

[0024] Figure 7 This is a schematic diagram of the structure of the fixed bracket described in Embodiment 1 of this utility model;

[0025] Figure 8 This is an exploded structural diagram of a portion of the cooking appliance described in Embodiment 2 of this utility model;

[0026] Figure 9 for Figure 8A magnified view of part B in the middle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100. Door assembly; 110. Cover plate; 111. Mounting groove; 112. High-voltage actuator column; 113. Low-voltage actuator column; 120. Pressure block; 130. Door body; 140. Door and window panel; 200. Cavity assembly; 210. Front panel; 220. Cavity heat insulation board; 221. Cable tie perforation; 230. Side heat insulation board; 240. Exhaust port decorative panel; 250. Air guide cover; 300. Panel assembly; 400. Magnetic sensing assembly; 410. Magnet; 420. Magnetic sensing device; 430. Fixing bracket; 431. Bracket body; 432. Limiting hole; 433. Buckle; 434. Fish-shaped tail buckle; 500. Switch assembly; 510. First micro switch; 520. Second micro switch; 530. Third micro switch. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only some, not all, of the embodiments of this utility model. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. It should be noted that, unless otherwise specified, the embodiments and features described in the present utility model can be combined with each other.

[0030] The following describes in detail, with reference to the accompanying drawings, a switch structure and a cooking appliance according to an embodiment of the present invention.

[0031] Example 1

[0032] This embodiment provides a switch structure for a cooking appliance, such as... Figures 1-9 As shown, the cooking appliance includes a door assembly 100 and a cooking body. The switch structure includes at least one magnetic sensing component 400 disposed between the door assembly 100 and the cooking body. The magnetic sensing component 400 includes a magnet 410 and a magnetic sensing device 420. The magnet 410 is disposed inside one of the door assembly 100 and the magnetic sensing device 420. The magnetic sensing device 420 is correspondingly disposed inside the other of the door assembly 100 and the magnetic sensing device 420. The magnetic sensing device 420 can connect the circuit of the cooking appliance when the magnet 410 is close and disconnect the circuit of the cooking appliance when the magnet 410 is far away.

[0033] In this application, a magnet 410 is disposed inside one of the door assembly 100 and the magnetic sensing device 420, and the magnetic sensing device 420 is disposed inside the other of the door assembly 100 and the magnetic sensing device 420. This allows the magnet 410 and the magnetic sensing device 420 to gradually approach each other as the door assembly 100 moves closer to the cooking body. When the magnetic sensing device 420 senses the magnetic field of the magnet 410, it activates the circuit of the cooking appliance, enabling it to function normally. As the door assembly 100 moves away from the cooking body, the magnet 410 gradually moves away from the magnetic sensing device 420. When the magnetic sensing device 420 no longer senses the magnetic field of the magnet 410, the circuit of the cooking appliance is cut off, thus de-energizing the appliance and rendering it unable to operate. With the above-described design, the magnetic sensing component 400 is completely hidden inside the cooking appliance, with no exposed parts visible from the outside. Compared to the door hook design on the door component 100 in the prior art, this significantly improves the product's aesthetics. Furthermore, the combination of the magnetic sensing component 400 and the circuit switching design ensures that the cooking appliance cannot be used normally when the door component 100 is not closed, significantly improving its safety. Moreover, the structure of the magnet 410 and the magnetic sensing device 420 is stable, significantly improving its reliability compared to the problem of easy breakage of the plastic mechanical sliding structure in the prior art.

[0034] As one of the better examples, such as Figure 2 , Figure 3 , Figure 8 , Figure 9 As shown, the magnet 410 is disposed inside the door assembly 100, and the magnetic sensing device 420 is correspondingly disposed inside the cooking body. It should be understood that because the magnetic sensing device 420 needs to be connected to a circuit, placing it inside the door assembly 100 would require its wiring to pass through the hinge of the door assembly 100 into the cooking body. This results in longer wiring, increasing costs, and the frequent opening and closing of the door assembly 100 can easily cause wear and tear on the wiring, affecting its lifespan. Therefore, placing the magnet 410 inside the door assembly 100 and the magnetic sensing device 420 inside the cooking body can significantly reduce equipment costs and extend the equipment's lifespan.

[0035] As one example, such as Figure 1As shown, the cooking body includes a cavity assembly 200 and a panel assembly 300. When the door assembly 100 is closed, the panel assembly 300 is located on the upper side of the door assembly 100. The magnetic sensing assembly 400 is disposed between the door assembly 100 and the cavity assembly 200 and / or the panel assembly 300. It should be understood that the magnetic sensing assembly 400 can be disposed at any position near the door assembly 100, either vertically or horizontally, as long as it can ensure that the circuit is connected under the action of magnetic induction when the door assembly 100 is closed, and the circuit is disconnected when the door assembly 100 is opened due to the disappearance of magnetic induction.

[0036] Specifically, such as Figures 3-5 As shown, the door assembly 100 includes a door body 130 and a cover plate 110. The door body 130 and the cover plate 110 are connected to each other. A mounting groove 111 is provided on the side of the cover plate 110 facing the door body 130. A magnet 410 is disposed in the mounting groove 111. A pressing block 120 is provided between the door body 130 and the cover plate 110. The pressing block 120 presses against the magnet 410 to fix the magnet 410. It should be noted that a cavity is formed between the door body 130 and the cover plate 110, and the mounting groove 111 is disposed in the cavity. Regarding the fixing method of the pressure block 120, it can be connected to one of the door body 130 or the cover plate 110 with screws, and then the magnet 410 is pressed and fixed. Preferably, when the door body 130 is connected to the cover plate 110, it is pressed onto the pressure block 120 to fix the pressure block 120 and the magnet 410. Through the mutually cooperating pressing structure, the installation of the magnet 410 is ensured to be firm, and the magnet 410 is completely hidden inside the door assembly 100 without any protrusion, ensuring the aesthetic and simple appearance of the door assembly 100. Preferably, the magnet 410 has a cylindrical structure, the mounting groove 111 is a corresponding cylindrical groove, and the height of the magnet 410 is greater than the depth of the mounting groove 111. A cylindrical or semi-cylindrical groove is correspondingly provided on the pressure block 120, so that the pressure block 120 can cooperate with the magnet 410 for positioning during installation. The side wall of the pressure block 120 cooperates with the side wall of the mounting groove 111 for pressing, improving assembly efficiency and effectively preventing the magnet 410 from loosening. It should be noted that the door assembly 100 also includes a door / window panel 140. The cover 110 is located on the side closer to the cooking body, and the door body 130 and the door / window panel 140 are sequentially located on the side farther from the cooking body.

[0037] As one optional example, the cavity assembly 200 includes a front panel 210 and a side heat insulation plate 230. The magnetic induction device 420 is disposed on the side of the front panel 210 away from the door assembly 100 and located on the outer side of the side heat insulation plate 230. The magnetic induction device 420 is correspondingly disposed with the magnet 410. It should be understood that the front panel 210 is disposed on the side of the cavity assembly 200 near the door assembly 100. Through the above arrangement, the magnetic induction device 420 is disposed inside the cavity assembly 200, with no parts exposed, significantly improving the aesthetics of the appliance and enhancing its reliability. It should be understood that one end of the magnetic induction device 420 is close to or abuts against the front panel 210 to ensure the magnetic induction effect. The outer side of the side heat insulation plate 230 refers to the side of the side heat insulation plate 230 that faces away from the cooking cavity.

[0038] Optionally, the front plate 210 is made of a non-ferromagnetic material. If the front plate 210 is made of a ferromagnetic material with a high iron content, the magnetism of the magnet 410 will be absorbed by the front plate 210, resulting in a significant reduction in penetration and affecting the sensing sensitivity of the magnetic sensing device 420. In severe cases, this could lead to the failure of the switch structure. However, if the front plate 210 is made of a material such as 304 stainless steel, which magnets do not attract, the penetration of the magnetic field will not be affected, thus ensuring the sensing sensitivity of the magnetic sensing device 420.

[0039] Optional, such as Figure 3 , Figure 4 As shown, the magnetic sensing component 400 also includes a fixed bracket 430, which is connected to the cavity component 200. The magnetic sensing device 420 is mounted on the fixed bracket 430. The fixed bracket 430 can be connected to different components in the cavity component 200 depending on the position of the magnet 410, so as to ensure the corresponding setting of the magnetic sensing device 420 and the magnet 410.

[0040] Specifically, such as Figure 4 , Figure 7 As shown, the cavity assembly 200 further includes a cavity heat insulation plate 220, and the fixing bracket 430 includes a bracket body 431, which is a hollow structure. The magnetic induction device 420 is disposed inside the bracket body 431, and at least one buckle 433 is provided on the bracket body 431, which engages with the cavity heat insulation plate 220. Figure 3 , Figure 7 As shown, the buckle 433 is a cylindrical buckle that engages with the locking hole on the cavity heat insulation plate 220 for fixation. This design allows for rapid assembly of the magnetic induction device 420, increasing the assembly speed of the components. Details regarding the snap-fit ​​mechanism can be found in existing technology and will not be elaborated upon here.

[0041] Better, such as Figure 7 As shown, a limiting hole 432 is provided at the end of the bracket body 431 away from the front plate 210. The limiting hole 432 is used to cooperate with the lead wire of the magnetic induction device 420 to limit its movement and prevent the magnetic induction device 420 from rotating inside the bracket body 431. Rotation of the magnetic induction device 420 inside the bracket body 431 can easily cause the lead wire to become entangled and break. The limiting hole 432 effectively avoids this problem, thereby ensuring the stable operation of the equipment. Optionally, the limiting hole 432 can be one or a combination of several of the following: a semi-circular hole, a rectangular hole, a triangular hole, an elliptical hole, a trapezoidal hole, etc., to ensure that it can cooperate with the lead wire of the magnetic induction device 420 for limiting its movement.

[0042] Better, such as Figure 4 , Figure 7 As shown, a fish-shaped buckle 434 is provided at the end of the bracket body 431 away from the front plate 210. Correspondingly, a cable tie through-hole 221 is provided on the cavity heat insulation plate 220. After the lead wire of the magnetic induction device 420 passes through the limiting hole 432, it cooperates with the fish-shaped buckle 434 and is secured by a cable tie through the cable tie through-hole 221. There is at least one cable tie through-hole 221; when there is only one, the buckle on the cable tie can cooperate with the through-hole 221 for positioning and fixation. Through the above arrangement, the magnetic induction device 420 and its lead wire can be effectively fixed, preventing displacement during use. The fixing method is simple, convenient, reliable, and low-cost.

[0043] As another optional example, such as Figure 8 , Figure 9As shown, a vent cover 250 is provided on the front side of the cavity assembly 200. The vent cover 250 is located below the panel assembly 300. A positioning slot is provided on the vent cover 250, and a magnetic induction device 420 is disposed in the positioning slot, corresponding to the magnet 410 in the door assembly 100. When the door assembly 100 is closed, the vent cover 250 is located between the door assembly 100 and the panel assembly 300. At this time, the magnetic energy of the magnet 410 inside the door assembly 100 can be sensed by the magnetic induction device 420 inside the vent cover 250, thereby conducting the circuit of the cooking appliance. When the door assembly 100 is opened, the magnet 410 moves away from the magnetic induction device 420, the induction is interrupted, the circuit of the cooking appliance is cut off, and the safety of using the cooking appliance is ensured. It should be understood that, in the above-described scenario, the magnetic sensing component 400 can be positioned between the door assembly 100 and the panel assembly 300, or between the door assembly 100 and the cavity assembly 200. This can be adjusted by the position and connection between the air guide cover 250 and the panel assembly 300, and will not be elaborated further here. Furthermore, an exhaust port decorative plate 240 is fitted onto the air guide cover 250. The exhaust port decorative plate 240 is sandwiched between the cavity heat insulation plate 220 and the front panel 210, serving to decorate the front structure of the air guide cover 250 and thus enhance the aesthetics of the cooking appliance. A through hole is provided on the exhaust port decorative plate 240, through which the positioning slot passes. Optionally, after the magnetic sensing device 420 is positioned in the positioning slot, silicone is applied to the positioning slot for curing and secure installation, preventing displacement of the magnetic sensing device 420 during use and ensuring the stability of the magnetic sensing component 400. Preferably, one or more of the air guide cover 250, exhaust port decorative plate 240, and shield 110 are made of non-ferromagnetic materials.

[0044] As one of the better examples, such as Figure 4 , Figure 6As shown, a switch assembly 500 is provided in the cavity formed on the outside of the front panel 210 and the side heat insulation panel 230. The switch assembly 500 includes a first micro switch 510, a second micro switch 520 and a third micro switch 530. The first micro switch 510 and the second micro switch 520 are high-voltage switches, and the third micro switch 530 is a low-voltage switch. The third micro switch 530 is connected in series with the magnetic induction device 420. A high-voltage actuation post 112 and a low-voltage actuation post 113 are provided on the shield 110. The high-voltage actuation post 112 is correspondingly provided with the first micro switch 510 and the second micro switch 520, and the low-voltage actuation post 113 is correspondingly provided with the third micro switch 530. With the above configuration, when the door assembly 100 is closed, the cooking appliance can only be powered on when both the magnetic induction device 420 and the third micro switch 530 are turned on. In addition, the first micro switch 510 and the second micro switch 520 must be turned on to start the appliance. That is, with the above structure, the cooking appliance requires four switch actions to start, realizing four-fold protection of the appliance. This effectively prevents children from accidentally starting the machine with objects such as wires or round rods, thus significantly improving the safety of the equipment. As a preferred example, when the door assembly 100 is in the closed state, the structure on the door assembly 100 from bottom to top consists of a low-voltage actuation post 113, a high-voltage actuation post 112, and a magnet 410. When the door assembly 100 is closed, the low-voltage actuation post 113 works in conjunction with the third micro switch 530, the high-voltage actuation post 112 works in conjunction with the first micro switch 510 and the second micro switch 520, and the magnet 410 works in conjunction with the magnetic induction device 420, so that the low-voltage and high-voltage circuits of the cooking appliance are fully connected, enabling the appliance to be used normally.

[0045] As a specific example, the magnetic sensing device 420 is a reed switch. The reed switch only requires a weak magnetic force to sense and close, thereby connecting the electrical circuit and ensuring the sensing sensitivity of the switch structure.

[0046] It should be noted that the magnetic sensing device 420, i.e., the reed switch, can also be installed directly above the door assembly 100, or on at least one of the left or right sides of the door assembly 100, or inside the door assembly 100, which will not be elaborated further here.

[0047] Example 2

[0048] This embodiment discloses a cooking appliance, which includes the switching structure of the cooking appliance as described in Embodiment 1.

[0049] The cooking appliance described herein has the same advantages over the prior art in terms of its switching structure as the cooking appliance described in Example 1, and will not be repeated here.

[0050] It should be understood that the cooking appliances mentioned are common cooking appliances such as ovens and microwave ovens, and are equipped with the conventional components that they should have, which will not be further limited or described here.

[0051] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "tail end," "head end," and "center," are only used to explain the relative positional relationship and connection between components in a specific state. They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model 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.

[0052] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A switch structure for a cooking appliance, characterized in that, The cooking appliance includes a door assembly (100) and a cooking body. The switch structure includes at least one magnetic sensing component (400) disposed between the door assembly (100) and the cooking body. The magnetic sensing component (400) includes a magnet (410) and a magnetic sensing device (420). The magnet (410) is disposed inside one of the door assembly (100) and the magnetic sensing device (420). The magnetic sensing device (420) is disposed inside the other of the door assembly (100) and the magnetic sensing device (420). The magnetic sensing device (420) can connect the circuit of the cooking appliance when the door assembly (100) is closed and can also disconnect the circuit of the cooking appliance when the door assembly (100) is open.

2. The switching structure of the cooking appliance as described in claim 1, characterized in that, The cooking body includes a cavity assembly (200) and a panel assembly (300). When the door assembly (100) is closed, the panel assembly (300) is located on the upper side of the door assembly (100). The magnetic sensing assembly (400) is disposed between the door assembly (100) and the cavity assembly (200) and / or the panel assembly (300).

3. The switching structure of the cooking appliance as described in claim 2, characterized in that, The door assembly (100) includes a door body (130) and a cover plate (110). The door body (130) and the cover plate (110) are connected in a fit. A mounting groove (111) is provided on the side of the cover plate (110) facing the door body (130). The magnet (410) is disposed in the mounting groove (111). A pressure block (120) is provided between the door body (130) and the cover plate (110). The pressure block (120) is pressed against the magnet (410) to fix the magnet (410).

4. The switching structure of the cooking appliance as described in claim 2 or 3, characterized in that, The cavity assembly (200) includes a front panel (210) and a side heat insulation panel (230). The magnetic sensing device (420) is disposed on the side of the front panel (210) away from the door assembly (100) and located on the outside of the side heat insulation panel (230). The magnetic sensing device (420) is disposed corresponding to the magnet (410).

5. The switching structure of the cooking appliance as described in claim 4, characterized in that, The cavity assembly (200) further includes a cavity heat insulation plate (220), and the magnetic sensing assembly (400) further includes a fixing bracket (430). The fixing bracket (430) includes a bracket body (431), which is a hollow structure. The magnetic sensing device (420) is disposed inside the bracket body (431). At least one buckle (433) is provided on the bracket body (431), and the buckle (433) engages with the cavity heat insulation plate (220).

6. The switching structure of the cooking appliance as described in claim 5, characterized in that, A limiting hole (432) is provided at one end of the bracket body (431) away from the front plate (210). The limiting hole (432) is used to cooperate with the lead wire of the magnetic induction device (420) to limit the magnetic induction device (420) and prevent the magnetic induction device (420) from rotating inside the bracket body (431). A fish-shaped tail buckle (434) is provided at one end of the bracket body (431) away from the front plate (210). A cable tie through hole (221) is correspondingly provided on the cavity heat insulation plate (220). After the lead wire of the magnetic induction device (420) passes through the limiting hole (432), it cooperates with the fish-shaped tail buckle (434) and is tied and fixed by the cable tie through the cable tie through hole (221).

7. The switching structure of the cooking appliance as described in claim 2 or 3, characterized in that, A gas guide cover (250) is provided on the front side of the cavity assembly (200). The gas guide cover (250) is located on the lower side of the panel assembly (300). A positioning hole groove is provided on the gas guide cover (250). The magnetic sensing device (420) is provided in the positioning hole groove, and the magnetic sensing device (420) is correspondingly provided with the magnet (410) in the door assembly (100).

8. The switching structure of the cooking appliance as described in claim 1, characterized in that, A switch assembly (500) is also provided in the cooking body. The switch assembly (500) includes a first micro switch (510), a second micro switch (520), and a third micro switch (530). The first micro switch (510) and the second micro switch (520) are high-voltage switches, and the third micro switch (530) is a low-voltage switch. The third micro switch (530) is connected in series with a magnetic induction device (420). A high-voltage actuation post (112) and a low-voltage actuation post (113) are provided on the door assembly (100). The high-voltage actuation post (112) is correspondingly provided with the first micro switch (510) and the second micro switch (520), and the low-voltage actuation post (113) is correspondingly provided with the third micro switch (530).

9. The switching structure of the cooking appliance as described in claim 1, characterized in that, The magnetic sensing device (420) is a reed switch.

10. A cooking appliance, characterized in that, The switch structure of the cooking appliance as described in any one of claims 1-9.

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