Cooking appliances and their control methods and devices

Abstract

This invention provides a cooking appliance and its control method and device. The cooking appliance includes a cooking component connected to a steam input pipe and a cleaning liquid input pipe. The cooking component includes a rotating nozzle with a rotating shaft, and a fan blade is sleeved on the rotating shaft. The fan blade engages with the rotating shaft via a clutch mechanism, which is used to fix or separate the fan blade from the rotating shaft in the circumferential direction. Based on the technical solution of this invention, a rotating nozzle structure for both steam cooking and cleaning is designed, and a fan blade engaging with the rotating nozzle using a clutch mechanism is provided. This allows the fan blade to rotate synchronously with the rotating nozzle during steam cooking, improving the diffusion speed and uniformity of steam, and ensuring the cooking effect of the food. During cleaning, the fan blade separates from the rotating nozzle and remains stationary to avoid affecting the direction of the cleaning liquid spray, thus ensuring the cleaning effect.

Description

Technical Field

[0001] This invention relates to the field of cooking appliance technology, and particularly to a cooking appliance and its control method and control device. Background Technology

[0002] Currently, most household steam cooking appliances only have one steam vent, and their steam output is generally direct. This results in slow and uneven steam distribution throughout the appliance's interior. These factors lead to uneven heating of food in the initial stages, resulting in uneven cooking in different areas after completion, ultimately causing nutrient loss and affecting the food's texture. Furthermore, after use, stubborn grease, carbon deposits, and other residues often accumulate on the inner pot of the appliance, making it difficult to clean effectively with standard methods.

[0003] Therefore, this invention proposes a cooking appliance and its control method and device, which can combine the steam cooking function of the cooking appliance to clean the residue on the surface of the inner pot; at the same time, it can achieve uniform and efficient output of steam to improve the cooking effect of food. Summary of the Invention

[0004] To address the problems of slow and uneven steam diffusion and difficulty in cleaning residues adhering to the cooking cavity in existing cooking appliances, this invention proposes a cooking appliance and its control method and device.

[0005] In a first aspect, the present invention provides a cooking appliance comprising a cooking component, wherein a steam input pipe and a cleaning liquid input pipe are respectively connected to the cooking component, the cooking component includes a rotating nozzle with a rotating shaft, a fan blade is sleeved on the rotating shaft, the fan blade is engaged with the rotating shaft through a clutch mechanism, the clutch mechanism being used to fix or separate the fan blade from the rotating shaft in the circumferential direction.

[0006] In one embodiment, the clutch mechanism includes a snap-fit ​​member disposed on the rotating shaft, a snap-fit ​​portion disposed on the fan blade, and a drive member cooperating with the fan blade. The drive member is used to drive the fan blade to move relative to the rotating shaft so that the snap-fit ​​portion of the fan blade engages or disengages with the snap-fit ​​member.

[0007] In one embodiment, the snap-fit ​​component includes a first snap-fit ​​block disposed on the rotating shaft, and the snap-fit ​​portion includes a snap-fit ​​opening at the center of the fan blade. The driving component is used to drive the fan blade to move axially along the rotating shaft so that the snap-fit ​​opening is engaged with the first snap-fit ​​block or the snap-fit ​​opening is misaligned with the first snap-fit ​​block.

[0008] In one embodiment, the snap-fit ​​component includes a second snap-fit ​​block disposed on the rotating shaft, and the snap-fit ​​portion includes a snap-fit ​​post disposed at the center of the fan blade. The second snap-fit ​​block has at least one snap-fit ​​groove in the circumferential direction. One end of the snap-fit ​​groove extends to the end face of the second snap-fit ​​block and forms a slot. The driving component is used to drive the fan blade to move axially along the rotating shaft so that the snap-fit ​​post engages or disengages with the snap-fit ​​groove through the slot.

[0009] In one embodiment, the end face of the second snap-fit ​​block has guide ramps on both sides of the slot.

[0010] In one embodiment, the two guide ramps on both sides of the slot extend circumferentially along the second snap-fit ​​block to meet; or the guide ramps on the side of two adjacent slots that are close to each other extend circumferentially along the second snap-fit ​​block to meet.

[0011] In one embodiment, the locking pin is a cylindrical structure or a plate-like structure extending along the axial direction of the rotating shaft.

[0012] In one embodiment, the rotating shaft is vertically arranged, the driving component is an electromagnet, and the fan blade is provided with an attractive part corresponding to the electromagnet.

[0013] In one embodiment, the cooking assembly further includes a nozzle holder connected to the rotating nozzle, the nozzle holder having an input flow channel communicating with the rotating nozzle, the input flow channel being a Tesla valve pipe structure.

[0014] In one embodiment, a sensor assembly is also included, comprising a humidity sensor for detecting humidity in the cooking cavity and a vision sensor for image recognition of the inner wall of the cooking cavity.

[0015] In one embodiment, an auxiliary heating assembly is also included, which includes a heating tube for heating the cooking cavity.

[0016] Secondly, the present invention provides a control method for a cooking appliance, comprising:

[0017] Determine the functional modes of the cooking appliances;

[0018] If the function mode is steaming mode, the steam input pipe is connected to the rotating nozzle of the cooking component, and the fan blades are engaged with the rotating shaft of the rotating nozzle through the clutch mechanism to start the rotating nozzle.

[0019] If the function mode is cleaning mode, the rotating nozzle is first started in the steaming mode, then the cleaning liquid inlet pipe is connected to the rotating nozzle of the cooking component, and the fan blades are separated from the rotating shaft of the rotating nozzle through the clutch mechanism, and the rotating nozzle is started again.

[0020] In one implementation, it further includes:

[0021] After the rotating nozzle is activated in the steaming mode, the humidity value in the cooking cavity of the cooking appliance is detected;

[0022] When the humidity value is greater than the preset value, the cooking cavity is vented.

[0023] In one implementation, determining the functional mode of the cooking appliance includes:

[0024] According to the steaming cooking command, the cooking appliance is set to enter steaming mode;

[0025] Once it is determined that the cooking appliance is not in steaming mode, image recognition is performed on the inner wall of the cooking cavity of the cooking appliance. Based on the image recognition results, it is determined whether the cooking appliance has entered cleaning mode.

[0026] In one implementation, determining whether a cooking appliance has entered a cleaning mode based on image recognition results includes:

[0027] Image recognition is performed on the inner wall of the cooking cavity of the cooking appliance to obtain a recognition image;

[0028] Determine the RGB recognition values ​​of each region in the recognition image, and determine whether the RGB recognition values ​​meet the preset cleaning conditions;

[0029] If the RGB recognition value meets the preset cleaning conditions, the cooking appliance is determined to enter the cleaning mode.

[0030] In one implementation, it further includes:

[0031] In the cleaning mode, the rotating nozzle is activated in the steaming mode while the steam generation power is increased to provide auxiliary heating to the cooking cavity of the cooking appliance.

[0032] Thirdly, the present invention provides a control device for a cooking appliance, comprising:

[0033] The mode determination module is used to determine the functional mode of the cooking appliance.

[0034] The steaming control module is used to connect the steam input pipe to the rotating nozzle of the cooking component and to engage the fan blades with the rotating shaft of the rotating nozzle through a clutch mechanism to start the rotating nozzle.

[0035] The cleaning control module is used to first start the rotating nozzle in the steaming mode, then connect the cleaning liquid inlet pipe to the rotating nozzle of the cooking component and separate the fan blades from the rotating shaft of the rotating nozzle through the clutch mechanism, and then start the rotating nozzle again.

[0036] The above-mentioned technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of the present invention can be achieved.

[0037] The cooking appliance and its control method and device provided by the present invention have at least the following advantages compared with the prior art:

[0038] The present invention discloses a cooking appliance and its control method and device, which are designed with a rotatable nozzle structure that can be used for both steam cooking and cleaning, and are equipped with a fan blade that works in conjunction with the rotatable nozzle using a clutch mechanism; so that the fan blade rotates synchronously with the rotatable nozzle during steam cooking, thereby improving the diffusion speed and uniformity of steam and ensuring the cooking effect of food; and so that the fan blade separates from the rotatable nozzle and remains stationary during cleaning, thereby avoiding any influence on the direction of the cleaning liquid spray and ensuring the cleaning effect. Attached Figure Description

[0039] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0040] Figure 1 A schematic diagram of the overall structure of the cooking appliance of the present invention is shown;

[0041] Figure 2 A schematic diagram of the cooking components of the cooking appliance of the present invention is shown;

[0042] Figure 3 A schematic diagram of the structure of the rotating nozzle in the cooking assembly of the cooking appliance of the present invention is shown;

[0043] Figure 4 A schematic diagram showing one structure of the rotating shaft in the cooking component of the cooking appliance of the present invention is shown;

[0044] Figure 5 Showing with Figure 4 A schematic diagram of the fan blades corresponding to the rotating shaft shown;

[0045] Figure 6 A schematic diagram showing another structure of the rotating shaft in the cooking component of the cooking appliance of the present invention;

[0046] Figure 7 Showing with Figure 6 A schematic diagram of the fan blades corresponding to the rotating shaft shown;

[0047] Figure 8 A schematic diagram showing another structure of the rotating shaft in the cooking component of the cooking appliance of the present invention;

[0048] Figure 9 Showing with Figure 8 The diagram shows the structure of the fan blades corresponding to the rotating shaft.

[0049] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0050] Figure label:

[0051] 1-Cooking component, 11-Rotating nozzle, 12-Shaft, 13-Fan blade, 131-Suction part, 14-Clutch mechanism, 141-Electromagnet, 142-First locking block, 143-Bayonet, 144-Second locking block, 1441-Slot, 1442-Guide slope, 145-Card post, 15-Nozzle holder, 151-Input flow channel, 16-Motor, 2-Steam input pipe, 3-Cleaning fluid input pipe, 4-Humidity sensor, 5-Vision sensor, 6-Heating element, 7-Steam generator, 8-Main controller. Detailed Implementation

[0052] The invention will now be further described with reference to the accompanying drawings.

[0053] Example 1

[0054] An embodiment of the present invention provides a cooking appliance, including a cooking component 1. The cooking component 1 is connected to a steam input pipe 2 and a cleaning liquid input pipe 3. The cooking component 1 includes a rotating nozzle 11 with a rotating shaft 12. A fan blade 13 is sleeved on the rotating shaft 12. The fan blade 13 is engaged with the rotating shaft 12 through a clutch mechanism 14. The clutch mechanism 14 is used to fix or separate the fan blade 13 from the rotating shaft 12 in the circumferential direction.

[0055] Specifically, as shown in the attached diagram. Figure 1 and Figure 2 As shown, the cooking appliance in this embodiment has a steam cooking function and a cleaning function based on the cooking component 1, and the cooking component 1 is preferably located at the top of the cooking cavity.

[0056] During steam cooking, the steam input pipe 2 (connected to the steam generator 7) connects to the cooking assembly 1, supplying high-temperature steam into the cooking chamber. Simultaneously, the clutch mechanism 14 activates, engaging the fan blade 13 with the rotating shaft 12 of the rotating nozzle 11. The rotating nozzle 11 of the cooking assembly 1 then rotates under the drive of the motor 16, increasing the steam's flowability. Furthermore, the synchronized rotation of the fan blade 13 and the rotating nozzle 11 further generates airflow, increasing the steam's velocity and ensuring even diffusion throughout the cooking chamber. This allows steam to quickly and evenly fill the cooking chamber, ensuring uniform heating of the food and improving cooking results.

[0057] During post-cooking cleaning, the cleaning fluid inlet pipe 3 (connected to an inlet pump) connects to the cooking assembly 1, delivering cleaning fluid (water or other cleaning agent) into the cooking cavity. Simultaneously, the clutch mechanism 14 actuates, disengaging the fan blade 13 from the rotating shaft 12 of the rotating nozzle 11. The rotating nozzle 11 of the cooking assembly 1 then rotates under the drive of the motor 16 (while the fan blade 13 remains stationary), utilizing the centrifugal force of rotation to further evenly spray the cleaning fluid onto the inner wall of the cooking cavity. The reason the fan blade 13 remains stationary during cleaning, rather than rotating with the rotating nozzle 11, is that the airflow generated by the rotation of the fan blade 13 would affect the direction of the sprayed cleaning fluid column, potentially resulting in some areas of the inner wall of the cooking cavity not being effectively cleaned.

[0058] In addition, when cleaning after cooking, you can first use the same method as when steam cooking to introduce high-temperature steam into the cooking cavity to soften the residues adhering to the inner wall of the cooking cavity, and then use cleaning solution to clean it, which can improve the cleaning effect.

[0059] The structure of the rotating nozzle 11 is shown in the attached figure. Figure 3 As shown, multiple spray holes are evenly arranged on its outer circumference, and the spray holes are connected to the conveying channel inside the rotating nozzle 11.

[0060] Furthermore, the clutch mechanism 14 includes a snap-fit ​​member disposed on the rotating shaft 12, a snap-fit ​​portion disposed on the fan blade 13, and a drive member that cooperates with the fan blade 13. The drive member is used to drive the fan blade 13 to move relative to the rotating shaft 12, so that the snap-fit ​​portion of the fan blade 13 and the snap-fit ​​member snap-fit ​​or separate from each other.

[0061] In this embodiment, the snap-fit ​​component includes a first snap-fit ​​block 142 disposed on the rotating shaft 12, and the snap-fit ​​part includes a snap-fit ​​opening 143 opened at the center of the fan blade 13. The driving component is used to drive the fan blade 13 to move along the axial direction of the rotating shaft 12 so that the snap-fit ​​opening 143 is snapped into the first snap-fit ​​block 142 or the snap-fit ​​opening 143 is misaligned and separated from the first snap-fit ​​block 142.

[0062] Specifically, as shown in the attached diagram. Figure 4 and Figure 5As shown, the engaging part uses a first engaging block 142, and the engaging part on the fan blade 13 uses a bayonet 143 that matches the first engaging block 142. The bayonet 143 is located at the center of the fan blade 13, where it was originally used to engage with the shaft 12, and its shape matches the shape of the first engaging block 142. The driving component can drive the fan blade 13 to control whether the bayonet 143 engages with the first engaging block 142. In the engaged state, the driving component drives the fan blade 13 to move to the first engaging block 142, and the first engaging block 142 engages with the bayonet 143. At this time, the fan blade 13 and the shaft 12 remain relatively fixed in the circumferential direction, and thus they can rotate synchronously. In the disengaged state, the driving component drives the fan blade 13 to move away from the first engaging block 142, and the first engaging block 142 and the bayonet 143 are completely misaligned. At this time, the fan blade 13 and the shaft 12 are separated in the circumferential direction, and the shaft 12 can rotate independently.

[0063] It should be noted that the structure of the first locking block 142 can be varied. For example, it can be a protrusion on the outer circumferential surface of the rotating shaft 12, in which case the shape and size of the latch 143 need to match the shape and size of the protrusion (the latch 143 and the original shaft hole of the fan blade 13 form a whole); the first locking block 142 can also be as shown in the attached figure. Figure 4 The structure shown, which is fitted outside the pivot 12, implies that the first snap-fit ​​block 142 cannot be circular; it can be any shape other than a circle, as shown in the attached figure. Figure 4 The regular hexagon shown represents the bayonet 143 on the fan blade 13, which is essentially an enlargement of the central shaft hole of the fan blade 13 and the shape of the matching first locking block 142, as shown in the attached figure. Figure 5 The hexagonal notch 143 shown.

[0064] It should be noted that, since the first engaging block 142 and the bayonet 143 in this embodiment need to engage and fit together, they must correspond to each other and be aligned in the circumferential direction when they are engaged. In practical applications, there may be a situation where the first engaging block 142 and the bayonet 143 are not aligned in the circumferential direction and cannot engage. In this case, when the motor 16 drives the rotating shaft 12 to start, the rotating shaft 12 is slowly rotated using a reducer to adjust the circumferential orientation of the first engaging block 142 and the bayonet 143 on the rotating shaft 12 to be aligned.

[0065] Preferably, the first latching block 142 and / or latch 143 have a guide slope on the side closest to the other when they are misaligned and separated.

[0066] Specifically, since the first locking block 142 and the locking slot 143 achieve locking engagement through relative movement along the axis of the rotating shaft 12, in order to improve the smoothness of their locking engagement, a guide slope is provided on the side that is close to each other to guide their relative movement and engagement.

[0067] Furthermore, the rotating shaft 12 is vertically arranged, the driving component is an electromagnet 141 arranged above the rotating nozzle, and the fan blade 13 is provided with a suction part 131 corresponding to the electromagnet 141.

[0068] Specifically, as shown in the attached diagram. Figure 1 and Figure 2 As shown, to improve the spraying effect of steam and cleaning liquid, the cooking component 1 is usually set at the top of the cooking chamber, that is, the rotating shaft 12 is set vertically, so that gravity can be used to drive the fan blade 13. Specifically, the driving component is set as an electromagnet 141. When the electromagnet 141 is energized, it attracts the suction part 131 of the fan blade 13, causing the fan blade 13 to move upward along the rotating shaft 12 and separate from the locking part on the rotating shaft 12, thereby achieving separation from the rotating shaft 12; when the electromagnet 141 is de-energized, the fan blade 13 falls to the locking part on the rotating shaft 12 under the action of gravity and engages with the locking part, thereby achieving circumferential fixation with the rotating shaft 12.

[0069] Furthermore, the cooking assembly 1 also includes a nozzle seat 15 connected to the rotating nozzle 11. The nozzle seat 15 has an input channel 151 communicating with the rotating nozzle 11. The input channel 151 is a Tesla valve pipe structure.

[0070] Specifically, as shown in the attached diagram. Figure 2 As shown, the nozzle holder 15 is used to mount the rotating nozzle 11, that is, the rotating nozzle 11 is connected to the nozzle holder 15 via a rotating shaft 12, and the motor 16 that drives the rotating shaft 12 is also mounted on the nozzle holder 15. The nozzle holder 15 has an input flow channel 151 and adopts a Tesla valve pipe structure, which can accelerate the input steam or cleaning fluid, improve the diffusion rate of steam and the kinetic energy of the cleaning fluid.

[0071] Furthermore, the cooking appliance also includes a sensor assembly, which includes a humidity sensor 4 for detecting the humidity of the cooking cavity and a vision sensor 5 for image recognition of the inner wall of the cooking cavity.

[0072] Specifically, as shown in the attached diagram. Figure 1 As shown, humidity sensor 4 detects the humidity inside the cooking cavity, allowing for timely venting when humidity is too high to ensure optimal cooking results. Vision sensor 5 performs image recognition on the inner wall of the cooking cavity after cooking to determine if cleaning is necessary. The sensor assembly is electrically connected to the main controller 8 of the cooking appliance to provide feedback on the corresponding sensor information.

[0073] Furthermore, the cooking appliance also includes an auxiliary heating assembly, which includes a heating tube 6 for heating the cooking cavity.

[0074] Specifically, as shown in the attached diagram. Figure 1As shown, the auxiliary heating component is used to heat the cooking cavity (heating the inner pot that forms the cooking cavity). Firstly, it can provide auxiliary heating for food near the bottom of the inner pot (steam may not be able to directly heat food at the bottom), improving the uniformity of heating the food. Secondly, during cleaning, it can heat the inner wall of the cooking cavity, further softening any attached residue and reducing its adhesion, thereby improving the cleaning effect.

[0075] Example 2

[0076] This embodiment proposes another rotating shaft and clutch structure based on embodiment 1. The rest of the same content is the same as in embodiment 1, and will not be repeated in this embodiment.

[0077] An embodiment of the present invention provides a cooking appliance, including a cooking component 1. The cooking component 1 is connected to a steam input pipe 2 and a cleaning liquid input pipe 3. The cooking component 1 includes a rotating nozzle 11 with a rotating shaft 12. A fan blade 13 is sleeved on the rotating shaft 12. The fan blade 13 is engaged with the rotating shaft 12 through a clutch mechanism 14. The clutch mechanism 14 is used to fix or separate the fan blade 13 from the rotating shaft 12 in the circumferential direction.

[0078] Furthermore, the clutch mechanism 14 includes a snap-fit ​​member disposed on the rotating shaft 12, a snap-fit ​​portion disposed on the fan blade 13, and a drive member that cooperates with the fan blade 13. The drive member is used to drive the fan blade 13 to move relative to the rotating shaft 12, so that the snap-fit ​​portion of the fan blade 13 and the snap-fit ​​member snap-fit ​​or separate from each other.

[0079] In this embodiment, the snap-fit ​​component includes a second snap-fit ​​block 144 disposed on the rotating shaft 12, and the snap-fit ​​part includes a snap-fit ​​post 145 disposed at the center of the fan blade 13. The second snap-fit ​​block 144 is provided with at least one snap-fit ​​groove 1441 in the circumferential direction. One end of the snap-fit ​​groove 1441 extends to the end face of the second snap-fit ​​block 144 and forms a slot. The driving component is used to drive the fan blade 13 to move axially along the rotating shaft 12 so that the snap-fit ​​post 145 engages or disengages from the snap-fit ​​groove 1441 through the slot.

[0080] Specifically, as shown in the figure Figure 6 and Figure 7 As shown, a slot 1441 is formed on the second locking block 144 on the rotating shaft 12. The central shaft hole of the fan blade 13 is provided with a locking post 145 that can cooperate with the slot 1441. Thus, under the drive of the driving component, the locking post 145 can move in and out of the slot 1441 through the slot, thereby realizing the engagement and disengagement of the fan blade 13 and the rotating shaft 12. Multiple slots 1441 are evenly distributed in the circumferential direction of the second locking block 144.

[0081] The purpose of this design is that the second latching block 144 can be set to any shape, no longer limited to a circular structure, as shown in the attached diagram. Figure 6 and Figure 7As shown, the shaft hole (jaw 143) at the center of the second snap-fit ​​block 144 and the fan blade 13 are both circular, and the snap-fit ​​post 145 is set on the inner wall of the shaft hole (jaw 143).

[0082] Preferably, the slot 1441 extends along the axial direction of the rotating shaft 12.

[0083] Preferably, the locking post 145 is a cylindrical structure (requiring the locking groove 1441 to extend along the axial direction of the rotating shaft 12 or the locking groove 1441 to extend at a certain angle away from the axial direction of the rotating shaft 12) or a plate-like structure extending along the axial direction of the rotating shaft 12 (requiring the locking groove 1441 to extend along the axial direction of the rotating shaft 12). The cylindrical structure of the locking post 145 makes it easier to engage with the locking groove 1441; the plate-like structure of the locking post 145 can improve its own structural strength, thereby improving the stability of the mating structure between the locking post 145 and the locking groove 1441 during the rotation of the rotating shaft 12.

[0084] Furthermore, the end face of the second snap-fit ​​block 144 has guide bevels 1442 on both sides of the slot.

[0085] Preferably, the two guide slopes 1442 on both sides of the slot 1441 extend along the circumference of the second snap-fit ​​block 144 to meet; or the guide slopes 1442 on the side of two adjacent slots 1441 that are close to each other extend along the circumference of the second snap-fit ​​block 144 to meet.

[0086] Specifically, as shown in the attached diagram. Figure 6 As shown, the guide slopes 1442 on both sides of the slot 1441 are used to guide the pins 145 of the fan blade 13 into the slot 1441 of the second locking block 144. In order to improve the smoothness of the fit between the pins 145 of the fan blade 13 and the slot 1441 of the second locking block 144, the guide slopes 1442 on both sides of the slot 1441 extend along the circumference of the rotating shaft 12 to connect with each other or connect with the guide slope 1442 on the corresponding side of another adjacent slot 1441. In this way, a V-shaped apex structure is formed at the connection point. The end face of the second locking block 144 is composed entirely of multiple guide slopes 1442 (of course, the end face of the second locking block 144 also includes the vertex part of the V-shaped apex structure, but the area of ​​the vertex part is very small and can be ignored). When the retaining post 145 of the fan blade 13 moves to the second retaining block 144, the retaining post 145 of the fan blade 13 will definitely come into contact with a guide slope 1442, and then enter the corresponding retaining groove 1441 under the action of the guide slope 1442. In this way, there is no need to worry about the problem of the retaining post 145 of the fan blade 13 and the retaining groove 1441 of the second retaining block 144 not being in the same circumferential direction, which would prevent them from directly cooperating.

[0087] Example 3

[0088] This embodiment proposes another rotating shaft and clutch structure based on Embodiments 1 and 2. The rest of the same content is the same as in Embodiments 1 and 2, and will not be repeated in this embodiment.

[0089] An embodiment of the present invention provides a cooking appliance, including a cooking component 1. The cooking component 1 is connected to a steam input pipe 2 and a cleaning liquid input pipe 3. The cooking component 1 includes a rotating nozzle 11 with a rotating shaft 12. A fan blade 13 is sleeved on the rotating shaft 12. The fan blade 13 is engaged with the rotating shaft 12 through a clutch mechanism 14. The clutch mechanism 14 is used to fix or separate the fan blade 13 from the rotating shaft 12 in the circumferential direction.

[0090] Furthermore, the clutch mechanism 14 includes a snap-fit ​​member disposed on the rotating shaft 12, a snap-fit ​​portion disposed on the fan blade 13, and a drive member that cooperates with the fan blade 13. The drive member is used to drive the fan blade 13 to move relative to the rotating shaft 12, so that the snap-fit ​​portion of the fan blade 13 and the snap-fit ​​member snap-fit ​​or separate from each other.

[0091] Furthermore, the snap-fit ​​component includes a first snap-fit ​​block 142 disposed on the rotating shaft 12, and the snap-fit ​​part includes a snap-fit ​​opening 143 opened at the center of the fan blade 13. The driving component is used to drive the fan blade 13 to move axially along the rotating shaft 12 so that the snap-fit ​​opening 143 is engaged with the first snap-fit ​​block 142 or the snap-fit ​​opening 143 is misaligned and separated from the first snap-fit ​​block 142.

[0092] The snap-fit ​​component also includes a second snap-fit ​​block 144 disposed on the rotating shaft 12, and the snap-fit ​​part also includes a snap-fit ​​post 145 disposed in the central snap-fit ​​opening 143 of the fan blade 13. The second snap-fit ​​block 144 and the first snap-fit ​​block 142 are arranged side by side along the axial direction of the rotating shaft 12 and are connected to each other. The second snap-fit ​​block 144 is provided with at least one snap-fit ​​groove 1441 in the circumferential direction. The snap-fit ​​groove 1441 extends continuously from the second snap-fit ​​block 144 to the first snap-fit ​​block 142. One end of the snap-fit ​​groove 1441 extends to the end face of the second snap-fit ​​block 144 and forms a slot. The driving component is used to drive the fan blade 13 to move axially along the rotating shaft 12 so that the snap-fit ​​post 145 engages or disengages from the snap-fit ​​groove 1441 through the slot.

[0093] The end face of the second snap-fit ​​block 144 has guide slopes 1442 on both sides of the slot. The two guide slopes 1442 on both sides of the slot 1441 extend along the circumference of the second snap-fit ​​block 144 to connect; or the guide slopes 1442 on the side of two adjacent slots 1441 that are close to each other extend along the circumference of the second snap-fit ​​block 144 to connect.

[0094] Specifically, as shown in the attached diagram. Figure 8 and Figure 9 As shown, the rotating shaft 12 and the snap-fit ​​structure in the clutch mechanism 14 of this embodiment are combined with those of Embodiment 1 (see attached figure). Figure 4 ) and Example 2 (with accompanying drawings) Figure 6The purpose of this structure is to achieve the engagement and transmission between the fan blade 13 and the rotating shaft 12 by relying on the snap-fit ​​structure of the snap-fit ​​post 145 and the snap-fit ​​groove 1441 in embodiment 2. Since the snap-fit ​​post 145 is not set very large, the strength of this snap-fit ​​structure is limited.

[0095] Therefore, in this embodiment, the snap-fit ​​structure of the first snap-fit ​​block 142 and the snap-fit ​​slot 143 in embodiment 1 is used as the main cooperation and transmission structure, and the structure of the snap-fit ​​post 145 and the snap-fit ​​slot 1441 in embodiment 2 is used to realize the circumferential position adjustment of the fan blade 13 relative to the first snap-fit ​​block 142, thereby solving the problem that the snap-fit ​​slot 143 of the fan blade 13 and the first snap-fit ​​block 142 are not aligned in the circumferential direction and cannot be directly cooperated.

[0096] Specifically, as described in Embodiment 2, when the retaining post 145 of the fan blade 13 contacts the guide slope 1442 on the second retaining block 144, it moves axially along the rotating shaft 12 under the action of the guide slope 1442, while simultaneously rotating a certain angle in the circumferential direction of the rotating shaft 12 to enter the retaining groove 1441. Therefore, the guide slope 1442 can be used to rotate the fan blade 13 by a certain angle, adjusting its circumferential orientation to correspond with the first retaining block 142, thus allowing for direct and accurate engagement with the first retaining block 142. To achieve this effect, the retaining groove 1441 of the second retaining block 144 needs to be extended onto the first retaining block 142, as shown in the attached figure. Figure 8 As shown in the attached figure, the shape and size of the bayonet 143 of the fan blade 13 need to match the first snap-fit ​​block 142, and a snap-fit ​​post 145 is provided inside the bayonet 143. Figure 9 As shown; in addition, the card slot 1441 and the card post 145 need to be set at positions corresponding to the positions of the first card block 142 and the fan blade 13 slot 143, respectively.

[0097] Example 4

[0098] Embodiments of the present invention provide a control method for a cooking appliance, comprising:

[0099] Step S100: Determine the function mode of the cooking appliance;

[0100] Step S110: According to the steaming cooking instruction, confirm that the cooking appliance enters the steaming mode;

[0101] Step S120: Determine that the cooking appliance is not in steaming mode, perform image recognition on the inner wall of the cooking cavity of the cooking appliance, and determine whether the cooking appliance has entered cleaning mode based on the image recognition results;

[0102] Step S121: Perform image recognition on the inner wall of the cooking cavity of the cooking appliance to obtain a recognition image;

[0103] Step S122: Determine the RGB recognition values ​​of each region in the image and determine whether the RGB recognition values ​​meet the preset cleaning conditions;

[0104] Step S123: If the RGB recognition value meets the preset cleaning conditions, then the cooking appliance is confirmed to enter the cleaning mode;

[0105] Step S124: Otherwise, confirm that the cooking appliance has entered standby mode;

[0106] Specifically, the functional modes of cooking appliances include at least steaming mode and cleaning mode, as well as a standby mode (idle mode) other than steaming and cleaning modes. When determining the functional mode of a cooking appliance, the steaming mode can be directly determined based on the user's input steaming cooking command; the cleaning mode requires further automatic judgment. Specifically, cleaning is usually considered after cooking is completed, so it is first necessary to determine that the appliance is not currently in cooking mode. Then, image recognition is performed on the inner wall of the cooking cavity, mainly to determine whether there are any attached residues on the inner wall. During image recognition, the RGB values ​​(RGB recognition values) of each region of the recognition image corresponding to the inner wall of the cooking cavity are determined, and the RGB values ​​are used as the basis for judgment.

[0107] If there are no residues attached to the inner wall of the cooking cavity, then since the inner wall of the cooking cavity (inner liner) is basically painted with the same color, the RGB values ​​of each area should be within a reasonable range, or the fluctuation should be small. This can be determined by comparing with the built-in RGB value model of the inner wall of the cooking cavity. In this case, it is considered that the preset cleaning conditions are not met, and no cleaning or other operation is required. Therefore, the cooking appliance is determined to enter standby mode (idle mode).

[0108] If there are residues attached to the inner wall of the cooking cavity, since the inner wall of the cooking cavity (inner liner) is basically painted with the same color, the color of the residues is unlikely to be exactly the same as the color of the inner wall of the cooking cavity. Therefore, the RGB values ​​of local areas will vary significantly. This can be determined by comparing with the built-in RGB value model of the inner wall of the cooking cavity. This situation is considered to meet the preset cleaning conditions and cleaning is required. Therefore, the cooking appliance is set to enter the cleaning mode.

[0109] Step S200: If the function mode is steaming mode, connect the steam input pipe to the rotating nozzle of the cooking component and engage the fan blade with the rotating shaft of the rotating nozzle through the clutch mechanism to start the rotating nozzle.

[0110] Step S210: After starting the rotating nozzle in steam mode, detect the humidity value in the cooking cavity of the cooking appliance;

[0111] Step S220: When the humidity value is greater than the preset value, perform steam venting operation in the cooking cavity.

[0112] Specifically, during steaming mode, the humidity level in the cooking cavity is monitored in real time. When the humidity level exceeds the preset value, steam is released in time to avoid affecting the cooking effect of the food, and the power of the steam generator is reduced appropriately.

[0113] Step S300: If the function mode is cleaning mode, the rotating nozzle is first started in steam mode. At this time, the steam generation power is increased and the cooking cavity of the cooking appliance is heated. Then, the cleaning liquid input pipe is connected to the rotating nozzle of the cooking component and the fan blade is separated from the rotating shaft of the rotating nozzle through the clutch mechanism, and the rotating nozzle is started again.

[0114] Specifically, steam and auxiliary heating are used to first soften residues such as grease, followed by a cleaning spray to improve the cleaning effect. The cleaning solution can be a detergent or water, or a combination of both. After cleaning with the cleaning solution, the auxiliary heating can be restarted to dry the cleaning chamber (inner liner).

[0115] Example 5

[0116] An embodiment of the present invention provides a control device for a cooking appliance, comprising:

[0117] The mode determination module is used to determine the functional mode of the cooking appliance.

[0118] The steaming control module is used to connect the steam input pipe to the rotating nozzle of the cooking component and to engage the fan blades with the rotating shaft of the rotating nozzle through the clutch mechanism to start the rotating nozzle.

[0119] The cleaning control module is used to first start the rotating nozzle in steaming mode, then connect the cleaning liquid inlet pipe to the rotating nozzle of the cooking component and separate the fan blades from the rotating shaft of the rotating nozzle through the clutch mechanism, and then start the rotating nozzle again.

[0120] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not 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, they should not be construed as limitations on this invention.

[0121] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A cooking appliance, characterized in that, The device includes a cooking assembly, which is connected to a steam input pipe and a cleaning liquid input pipe. The cooking assembly includes a rotating nozzle with a rotating shaft. A fan blade is fitted on the rotating shaft. The fan blade is engaged with the rotating shaft through a clutch mechanism. The clutch mechanism is used to fix or separate the fan blade from the rotating shaft in the circumferential direction. The clutch mechanism includes a snap-fit ​​component disposed on the rotating shaft, a snap-fit ​​portion disposed on the fan blade, and a drive component that cooperates with the fan blade. The drive component is used to drive the fan blade to move relative to the rotating shaft so that the snap-fit ​​portion of the fan blade engages or disengages with the snap-fit ​​component. In steaming mode, the steam input pipe is connected to the rotary nozzle, and the fan blades rotate synchronously with the rotating shaft of the rotary nozzle through a clutch mechanism. In cleaning mode, the cleaning fluid inlet pipe is connected to the rotary nozzle, the fan blades are separated from the rotating shaft of the rotary nozzle through a clutch mechanism, and the rotary nozzle rotates.

2. The cooking appliance according to claim 1, characterized in that, The snap-fit ​​component includes a first snap-fit ​​block disposed on the rotating shaft, and the snap-fit ​​portion includes a snap-fit ​​opening at the center of the fan blade. The driving component is used to drive the fan blade to move axially along the rotating shaft so that the snap-fit ​​opening is engaged with the first snap-fit ​​block or the snap-fit ​​opening is misaligned with the first snap-fit ​​block.

3. The cooking appliance according to claim 1 or 2, characterized in that, The snap-fit ​​component includes a second snap-fit ​​block disposed on the rotating shaft, and the snap-fit ​​part includes a snap-fit ​​post disposed at the center of the fan blade. The second snap-fit ​​block has at least one snap-fit ​​groove in the circumferential direction. One end of the snap-fit ​​groove extends to the end face of the second snap-fit ​​block and forms a slot. The driving component is used to drive the fan blade to move axially along the rotating shaft so that the snap-fit ​​post engages or disengages with the snap-fit ​​groove through the slot.

4. The cooking appliance according to claim 3, characterized in that, The end face of the second snap-fit ​​block has guide slopes on both sides of the slot.

5. The cooking appliance according to claim 4, characterized in that, The two guide ramps on both sides of the slot extend circumferentially along the second snap-fit ​​block to meet; or the guide ramps on the side of two adjacent slots that are close to each other extend circumferentially along the second snap-fit ​​block to meet.

6. The cooking appliance according to claim 3, characterized in that, The locking pin is a cylindrical structure or a plate-like structure extending along the axial direction of the rotating shaft.

7. The cooking appliance according to claim 1, characterized in that, The rotating shaft is vertically arranged, the driving component is an electromagnet located above the rotating nozzle, and the fan blade is provided with a suction part corresponding to the electromagnet.

8. The cooking appliance according to any one of claims 1 to 2, characterized in that, The cooking assembly also includes a nozzle holder connected to the rotating nozzle, the nozzle holder having an input flow channel communicating with the rotating nozzle, the input flow channel being a Tesla valve pipe structure.

9. The cooking appliance according to any one of claims 1 to 2, characterized in that, It also includes a sensor assembly, which includes a humidity sensor for detecting humidity in the cooking cavity and a vision sensor for image recognition of the inner wall of the cooking cavity.

10. The cooking appliance according to any one of claims 1 to 2, characterized in that, It also includes an auxiliary heating assembly, which includes a heating tube for heating the cooking cavity.

11. A control method for a cooking appliance according to any one of claims 1-10, characterized in that, include: Determine the functional modes of the cooking appliances; If the function mode is steaming mode, the steam input pipe is connected to the rotating nozzle of the cooking component, and the fan blades are engaged with the rotating shaft of the rotating nozzle through the clutch mechanism to start the rotating nozzle. If the function mode is cleaning mode, the rotating nozzle is first started in the steaming mode, then the cleaning liquid inlet pipe is connected to the rotating nozzle of the cooking component, and the fan blades are separated from the rotating shaft of the rotating nozzle through the clutch mechanism, and the rotating nozzle is started again.

12. The control method for a cooking appliance according to claim 11, characterized in that, Also includes: After the rotating nozzle is activated in the steaming mode, the humidity value in the cooking cavity of the cooking appliance is detected; When the humidity value is greater than the preset value, the cooking cavity is vented.

13. The control method for a cooking appliance according to claim 11, characterized in that, Determine the functional modes of cooking appliances, including: According to the steaming cooking command, the cooking appliance is set to enter steaming mode; Once it is determined that the cooking appliance is not in steaming mode, image recognition is performed on the inner wall of the cooking cavity of the cooking appliance. Based on the image recognition results, it is determined whether the cooking appliance has entered cleaning mode.

14. The control method for a cooking appliance according to claim 13, characterized in that, Based on the image recognition results, determine whether the cooking appliance has entered cleaning mode, including: Image recognition is performed on the inner wall of the cooking cavity of the cooking appliance to obtain a recognition image; Determine the RGB recognition values ​​of each region in the recognition image, and determine whether the RGB recognition values ​​meet the preset cleaning conditions; If the RGB recognition value meets the preset cleaning conditions, the cooking appliance is determined to enter the cleaning mode.

15. The control method for a cooking appliance according to claim 11, characterized in that, Also includes: In the cleaning mode, the rotating nozzle is activated in the steaming mode while the steam generation power is increased to provide auxiliary heating to the cooking cavity of the cooking appliance.

16. A control device for a cooking appliance as described in any one of claims 1-10, characterized in that, include: The mode determination module is used to determine the functional mode of the cooking appliance. The steaming control module is used to connect the steam input pipe to the rotating nozzle of the cooking component and to engage the fan blades with the rotating shaft of the rotating nozzle through a clutch mechanism to start the rotating nozzle. The cleaning control module is used to first start the rotating nozzle in the steaming mode, then connect the cleaning liquid inlet pipe to the rotating nozzle of the cooking component and separate the fan blades from the rotating shaft of the rotating nozzle through the clutch mechanism, and then start the rotating nozzle again.

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