Cooking utensil, control method thereof and readable storage medium

Abstract

The invention provides a cooking utensil and a control method thereof and a readable storage medium, the cooking utensil comprises a utensil main body and a weight sensor, a cooking space, a condensation cavity and a communication channel are formed in the utensil main body, and the communication channel communicates the cooking space with the condensation cavity; the weight sensor is arranged on the appliance body and used for detecting the weight of the condensation cavity structure. According to the technical scheme, airtightness detection of the cooking utensil can be achieved, and a large amount of air leakage in the cooking process is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking appliances, and particularly to a cooking appliance, a control method thereof, and a readable storage medium. Background Art

[0002] Existing cooking appliances discharge a large amount of steam during the cooking process. The high-temperature and high-humidity steam will cause the temperature and humidity in the narrow kitchen environment, making the kitchen become humid, which is likely to affect the service life of kitchen cabinets and kitchen appliances, etc., and there is also a safety risk of scalding users. In related technologies, a water tank can be set to discharge the steam into the water tank to condense into water to avoid the outward discharge of steam. However, if the sealing performance of the cooking appliance is poor due to inaccurate installation of the diversion structure or other factors in the cooking appliance, a large amount of air leakage will occur during the cooking process. Summary of the Invention

[0003] The main object of the present invention is to provide a cooking appliance, a control method thereof, and a readable storage medium, aiming to realize the airtightness detection of the cooking appliance and avoid a large amount of air leakage during the cooking process.

[0004] To achieve the above object, a cooking appliance proposed by the present invention includes:

[0005] An appliance main body, in which a cooking space, a condensation chamber, and a communication channel are formed, and the communication channel communicates the cooking space and the condensation chamber; and

[0006] A weight sensor, which is arranged on the appliance main body and is used to detect the weight of the condensation chamber structure.

[0007] In an embodiment of the present application, the appliance main body includes:

[0008] A pot body assembly, which includes a pot body and a water tank. The pot body and the water tank are arranged side by side. The cooking space is formed in the pot body, the condensation chamber is formed in the water tank, and the weight sensor is arranged at the bottom of the water tank; and

[0009] An upper cover assembly, in which the communication channel is formed, and the upper cover assembly covers the pot body assembly.

[0010] In an embodiment of the present application, the upper cover assembly includes a cover body and a diversion structure. The cover body is movably arranged on the pot body assembly, and the diversion structure is detachably arranged on the cover body, and the diversion structure forms the communication channel.

[0011] In an embodiment of the present application, the upper cover assembly further includes:

[0012] a cover-closing buckle, the cover-closing buckle being movably disposed on the cover body and having a locking position and an unlocking position, wherein the cover body can be opened and closed with the pot body assembly when the cover-closing buckle is located at the unlocking position, and the cover-closing buckle located at the locking position can lock the cover body with the pot body assembly; and

[0013] a lock-release structure, the lock-release structure being movably disposed on the cover body and having a stop position and a release position, the lock-release structure being located at the stop position being able to limit the cover closing buckle from switching between the lock position and the unlock position relative to the cover body, and the cover closing buckle being able to switch between the lock position and the unlock position relative to the cover body when the lock-release structure is located at the release position;

[0014] The flow guide structure installed on the cover body causes the lock-release structure to be located at the release position;

[0015] After the flow guiding structure is removed from the cover body, the locking and releasing structure is located at the stopping position.

[0016] In one embodiment of the present application, the upper cover assembly further includes a reset member, which acts between the lock release structure and the cover body, so that the lock release structure has a tendency to remain in the stop position.

[0017] In one embodiment of the present application, the cover closing buckle is rotatably disposed on the cover body, and has a pressing portion and a locking portion located on both sides of the rotation axis, the locking portion extends toward the inner surface of the cover body, and the locking portion is tilted when the cover closing buckle is in the unlocking position;

[0018] The reset member can drive the lock-release structure to move to the unlocking path of the cover-closing buckle.

[0019] In one embodiment of the present application, the guide structure is at least partially arranged on the side of the closing buckle along the moving direction of the locking and releasing structure, and the locking and releasing structure is movably arranged between the closing buckle and the guide structure, and can be inserted in the pressing path of the pressing part.

[0020] In one embodiment of the present application, the lock-release structure can be raised and lowered along the thickness direction of the cover body, and can be moved to the lifting path of the lock portion;

[0021] The flow guiding structure presses against the lock-release structure and causes the lock-release structure to move to the release position in a direction away from the inner surface of the cover body.

[0022] In one embodiment of the present application, the reset member is an elastic member and abuts against the lock-release structure;

[0023] And / or, the cover body is provided with a guiding groove, and the locking and releasing structure is slidably arranged in the guiding groove.

[0024] In an embodiment of the present application, the guiding structure is provided with a first magnetic member, the locking and releasing structure is provided with a second magnetic member, and the first magnetic member and the second magnetic member attract each other to move the locking and releasing structure to the releasing position.

[0025] In an embodiment of the present application, a fixing portion protrudes from a side wall of the guiding structure facing the locking and releasing structure, an installation cavity is formed in the fixing portion, and the first magnetic member is arranged in the installation cavity;

[0026] And / or, the second magnetic member is arranged at one end of the locking and releasing structure facing the guiding structure.

[0027] In an embodiment of the present application, an installation seat is arranged on an inner surface of the cover body, a limiting groove is formed in the installation seat, and the guiding structure is arranged in the limiting groove.

[0028] In an embodiment of the present application, the cover body includes a face cover and an inner cover, the face cover covers the inner cover, and an installation space is formed between the face cover and the inner cover;

[0029] The locking and releasing structure is arranged in the installation space, the inner cover is recessed towards the installation space to form the installation seat, the inner cover is provided with an installation opening communicating with the installation space, and the cover closing buckle is movably arranged in the installation opening.

[0030] The present application also provides a control method for a cooking appliance, which is applied to the cooking appliance described in any of the foregoing embodiments, and the control method includes the following steps:

[0031] Obtain the expected weight gain value of the condensation cavity under the current heating power adjustment ratio condition in the current heating cycle;

[0032] Obtain the actual weight gain value of the condensation cavity under the current heating power adjustment ratio condition in the current heating cycle;

[0033] According to the actual weight gain value and the expected weight gain value, confirm the air leakage data of the cooking appliance.

[0034] In an embodiment of the present application, the step of confirming the air leakage data of the cooking appliance according to the actual weight gain value and the expected weight gain value includes:

[0035] When the actual weight gain value is lower than the expected weight gain value, it is confirmed that the cooking appliance has air leakage.

[0036] In an embodiment of the present application, after the step of confirming that the cooking appliance has air leakage when the actual weight gain value is lower than the expected weight gain value, the following steps are further included:

[0037] Stop heating when the actual weight gain value is lower than the preset minimum expected weight gain value;

[0038] And / or, reduce the heating power adjustment ratio when the actual weight gain value is not lower than the minimum expected weight gain value.

[0039] In an embodiment of the present application, in the step of reducing the heating power adjustment ratio when the actual weight gain value is not lower than the preset minimum expected weight gain value, it includes:

[0040] When the actual weight gain value is not lower than the minimum expected weight gain value, adjust the heating power adjustment ratio to not exceed 1 / 4 of the original heating power adjustment ratio.

[0041] In an embodiment of the present application, in the step of determining that the cooking appliance is leaking air when the actual weight gain value is lower than the expected weight gain value, it includes:

[0042] When the actual weight gain values in a preset number of consecutive heating cycles are all lower than the expected weight gain value, it is determined that the cooking appliance is leaking air.

[0043] In an embodiment of the present application, the step of obtaining the expected weight gain value of the condensation chamber under the current heating power adjustment ratio of the current heating cycle includes:

[0044] Obtain the theoretical steam generation amount according to the heating power adjustment ratio of the current heating cycle;

[0045] Obtain the expected weight gain value of the condensation chamber according to the theoretical steam generation amount and the steam condensation rate.

[0046] In an embodiment of the present application, the step of obtaining the theoretical steam generation amount according to the heating power adjustment ratio of the current heating cycle includes:

[0047] Obtain the theoretical steam generation amount according to the heating power adjustment ratio of the current heating cycle, the cooking time of the heating cycle, the heating power, the cooking space and the thermal conductivity of the food material, the initial water temperature of the cooking space at the start of the current heating cycle, the specific heat capacity of water, and the latent heat of vaporization coefficient of water;

[0048] Wherein, the theoretical steam generation amount = cooking time * heating power adjustment ratio * heating power * thermal conductivity / [(100°C - initial water temperature) * specific heat capacity of water * latent heat of vaporization].

[0049] In an embodiment of the present application, the step of obtaining the expected weight gain value of the condensation chamber under the current heating power adjustment ratio of the current heating cycle includes:

[0050] Under boiling conditions, obtain the expected weight gain value of the condensation chamber under the current heating power adjustment ratio of the current heating cycle.

[0051] In an embodiment of the present application, the step of obtaining the actual weight gain value of the condensation chamber under the current heating power adjustment ratio condition in the current heating cycle includes:

[0052] Obtain the detection data of the weight sensor in the current heating cycle to obtain the actual weight gain value of the condensation chamber under the current heating power adjustment ratio condition.

[0053] The present application also proposes a readable storage medium. The readable storage medium stores program instructions, and when the program instructions are executed by a processor, the control method described in any of the foregoing embodiments is implemented.

[0054] The technical solution of the present invention can determine whether the cooking appliance leaks air by detecting the weight gain of the condensation chamber. During cooking, the amount of steam generated is related to the heating power adjustment ratio of the cooking appliance. The heating power adjustment ratio is the ratio of the heating time of the cooking appliance in a power adjustment cycle to the time of the power adjustment cycle; that is, the amount of steam generated can be obtained from the heating power adjustment ratio in the cooking stage, and thus the weight increase of the condensation chamber can be obtained. In this way, the weight of the condensation chamber is detected by a weight sensor to determine the air leakage condition of the communication channel according to the weight increase and the heating power adjustment ratio, so as to remind the user to perform corresponding maintenance or adjust the heating power adjustment ratio or heating power of the cooking process in case of air leakage problems, prevent safety problems caused by air leakage, and improve the use safety of the cooking appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0056] Figure 1 It is a cross-sectional view of an embodiment of the cooking appliance of the present application;

[0057] Figure 2 It is a cross-sectional view of another embodiment of the cooking appliance of the present application;

[0058] Figure 3 It is a structural diagram of the upper cover assembly of the cooking appliance of the present application with the face cover removed;

[0059] Figure 4 For an embodiment of the cooking appliance of the present application, the upper cover assembly is at Figure 3 A cross-sectional view taken at A-A' in;

[0060] Figure 5 For Figure 4 A cross-sectional view of the upper cover assembly with the diversion structure removed;

[0061] Figure 6 is Figure 3 the enlarged view at position B in

[0062] Figure 7 the sectional view taken along C-C’ of the upper cover assembly in another embodiment of the cooking appliance of the present application Figure 3 in

[0063] Figure 8 is Figure 7 the sectional view of the upper cover assembly with the diversion structure removed in

[0064] Figure 9 the exploded view of the diversion structure in yet another embodiment of the cooking appliance of the present application

[0065] Figure 10 the flowchart of the first embodiment of the control method of the cooking appliance of the present application

[0066] Figure 11 the flowchart of the second embodiment of the control method of the cooking appliance of the present application

[0067] Figure 12 the flowchart of the third embodiment of the control method of the cooking appliance of the present application

[0068] Figure 13 the flowchart of the fourth embodiment of the control method of the cooking appliance of the present application

[0069] Figure 14 the flowchart of the fifth embodiment of the control method of the cooking appliance of the present application

[0070] Figure 15 the flowchart of the sixth embodiment of the control method of the cooking appliance of the present application

[0071] Figure 16 the flowchart of the seventh embodiment of the control method of the cooking appliance of the present application

[0072] Figure 17 the flowchart of the eighth embodiment of the control method of the cooking appliance of the present application.

[0073] Explanation of the reference numerals in the drawings:

[0074]

[0075]

[0076] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0077] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0078] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0079] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0080] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0081] The present invention provides a cooking appliance 100.

[0082] Please refer to Figure 1 and Figure 2 , in some embodiments of the present application, the cooking appliance 100 includes an appliance main body 10 and a temperature sensor. A cooking space 111, a condensation chamber 113, and a communication channel 1334 are formed in the appliance main body 10. The communication channel 1334 communicates the cooking space 111 and the condensation chamber 113; the weight sensor 30 is disposed on the appliance main body 10 for detecting the weight of the structure of the condensation chamber 113.

[0083] The cooking appliance 100 proposed in this application can be a rice cooker, a pressure cooker, a steam box, a steam oven, or other appliances that generate steam during the cooking process, etc. A cooking space 111 for placing and cooking food materials is formed inside the appliance body 10 of the cooking appliance 100, and a condensation chamber 113 communicating with the cooking space 111 is formed. The condensation chamber 113 and the cooking space 111 are communicated through a communication channel 1334. When using the cooking appliance 100, cooling water can be stored in the condensation chamber 113 first, so that the steam generated during the cooking process of the cooking appliance 100 can flow into the condensation chamber 113 through the communication channel 1334 and contact the cooling water to be condensed into water, reducing or avoiding the discharge of steam to the outside of the cooking appliance 100, achieving the purpose of micro-steam or no-steam discharge during the cooking process, thereby avoiding the influence of steam on the surrounding environment and avoiding scalding users with steam.

[0084] The amount of steam generated during the cooking process is related to the heating power adjustment ratio of the cooking appliance 100. The heating power adjustment ratio is the ratio of the heating time of the cooking appliance 100 within a power adjustment cycle to the time of the power adjustment cycle; that is, assuming that the cooking stage is divided into multiple heating cycles, the heating power adjustment ratio can reflect the heating time of each heating cycle. Thus, under the condition of obtaining the heating power adjustment ratio of the current stage, the heating energy input by the heating structure can be obtained according to the heating time, heating power, etc. of the current stage, and the theoretical amount of steam generated in the current heating cycle can be calculated therefrom.

[0085] When the steam enters the condensation chamber 113 from the cooking space 111 and is condensed by water, the amount of water condensed into water can be obtained according to the condensation efficiency of the steam, so that the expected weight gain value of the condensation chamber 113 within the current heating cycle can be obtained. If the actual weight gain value detected by the weight sensor 30 is lower than the expected weight gain value, it can be confirmed that there is a problem of air leakage in the cooking appliance 100. Thus, the heating power or heating power adjustment ratio during the cooking process can be adjusted, or the cooking program can be directly closed to repair the cooking appliance 100.

[0086] Therefore, it can be understood that the technical solution of this application can judge whether the cooking appliance 100 leaks air by detecting the weight gain of the condensation chamber 113. During the cooking process, the amount of steam generated is related to the heating power adjustment ratio of the cooking appliance 100. The heating power adjustment ratio is the ratio of the heating time of the cooking appliance 100 within a power adjustment cycle to the time of the power adjustment cycle; that is, the amount of steam generated can be obtained through the heating power adjustment ratio of the cooking stage, and thus the weight increase amount of the condensation chamber 113 can be obtained. In this way, the weight of the condensation chamber 113 is detected by the weight sensor 30 to judge the air leakage condition of the communication channel 1334 according to the weight increase amount and the heating power adjustment ratio, so as to remind the user to perform corresponding repairs or adjust the heating power adjustment ratio or heating power of the cooking process in case of air leakage problems, prevent safety problems caused by air leakage, and improve the use safety of the cooking appliance 100.

[0087] Please refer to Figure 1 and Figure 2 In an embodiment of the present application, the appliance body 10 includes:

[0088] A pot body assembly 11, the pot body assembly 11 includes a pot body and a water tank, the pot body and the water tank are arranged side by side, a cooking space 111 is formed in the pot body, a condensation chamber 113 is formed in the water tank, and the weight sensor 30 is arranged at the bottom of the water tank; and

[0089] An upper cover assembly 13, a communication channel 1334 is formed in the upper cover assembly 13, and the upper cover assembly 13 is covered on the pot body assembly 11.

[0090] The cooking appliance 100 in the embodiment of the present application includes a pot body assembly 11 and an upper cover assembly 13. The pot body assembly 11 includes a pot body and a water tank arranged side by side. A cooking space 111 is formed in the pot body. The pot body can include a housing and an inner pot. The inner pot forms the cooking space 111. The heating structure can be arranged between the housing and the inner pot. A condensation chamber 113 is formed in the water tank. An air inlet can be opened at the top of the water tank. The weight sensor 30 is used to weigh the water tank to obtain the weight of the condensation chamber 113. A communication channel 1334 is formed in the cover body 131. The upper cover assembly 13 can be covered on the water tank and the pot body at the same time to close the condensation chamber 113 and the cooking space 111. An inlet of the communication channel 1334 is arranged in the area of the upper cover assembly 13 facing the pot body, and an outlet of the communication channel 1334 is arranged in the area of the upper cover assembly 13 facing the air inlet of the water tank. Thus, the communication channel 1334 can be used to connect the cooking space 111 and the condensation chamber 113 to form a relatively closed space, so that the steam generated in the cooking space 111 can enter the condensation chamber 113 through the communication channel 1334 for condensation.

[0091] With reference to Figure 1 and Figure 4 In an embodiment of the present application, the upper cover assembly 13 includes a cover body 131 and a diversion structure 133. The cover body 131 is arranged on the pot body assembly in an openable and closable manner. The diversion structure 133 is detachably arranged on the cover body 131, and the diversion structure 133 forms the communication channel 1334.

[0092] In the embodiments of the present application, a communication channel 1334 for steam to flow through is provided in the upper cover assembly 13. Specifically, the upper cover assembly 13 includes a cover body 131 and a diversion structure 133 detachably disposed on the cover body 131. The cover body 131 is pivotally arranged on the pot body assembly 11, and the aforementioned communication channel 1334 is formed in the diversion structure 133. The diversion structure 133 is detachably connected to the cover body 131, so that the diversion structure 133 can be separately removed to clean and maintain the diversion structure 133 and the communication channel 1334, improving the convenience of use and maintenance of the cooking appliance 100. Among them, the detachable connection method between the diversion structure 133 and the cover body 131 can be at least one of snap connection, embedding or plugging, etc., which is not limited herein.

[0093] Please refer to Figure 9 , in an embodiment of the present application, in order to facilitate the cleaning of the internal communication channel 1334 of the diversion structure 133, the diversion structure 133 can include a channel base 1331 and a channel cover body 1332 that are mutually covered. The channel base 1331 and the channel cover body 1332 enclose to form the communication channel 1334. The inlet and outlet of the communication channel 1334 can be opened on any structure of the channel base 1331 and the channel cover body 1332, which is not limited herein. With such a setting, the channel base 1331 and the channel cover body 1332 can be disassembled to clean the communication channel 1334. In addition, a sealing structure such as a sealing ring 1333 can be provided at the connection position of the channel base 1331 and the channel cover body 1332 to improve the sealing performance of the communication channel 1334 and avoid air leakage problems.

[0094] Please refer to Figures 3 to 8 , in an embodiment of the present application, the upper cover assembly 13 further includes:

[0095] A lid closing buckle 135, the lid closing buckle 135 is movably arranged on the cover body 131 and has a locking position and an unlocking position. When the lid closing buckle 135 is in the unlocking position, the cover body 131 can be opened and closed with the pot body assembly 11. The lid closing buckle 135 in the locking position can lock the cover body 131 with the pot body assembly 11; and

[0096] A lock release structure 137, the lock release structure 137 is movably arranged on the cover body 131 and has a stopping position and a releasing position. The lock release structure 137 in the stopping position can limit the lid closing buckle 135 from switching between the locking position and the unlocking position relative to the cover body 131. When the lock release structure 137 is in the releasing position, the lid closing buckle 135 can switch between the locking position and the unlocking position relative to the cover body 131;

[0097] The diversion structure 135 installed on the cover body 131 can urge the lock release structure 137 to be in the release position; after the diversion structure 133 is removed from the cover body 131, the lock release structure 137 is in the stop position.

[0098] In this embodiment, the upper cover assembly 13 further includes a lid closing buckle 135. Correspondingly, a buckling portion 115 can be provided on the pot body assembly 11. The lid closing buckle 135 can be a bolt, a buckle, etc. The lid closing buckle 135 can be arranged to be translatable or liftable, or rotatable; so that the lid closing buckle 135 can be switched between the locked position and the unlocked position. When the lid closing buckle 135 is in the locked position, the relative state between the upper cover assembly 13 and the pot body assembly 11 cannot be changed. For example, when the upper cover assembly 13 and the pot body assembly 11 are in the open lid state and the lid closing buckle 135 is in the locked position, the upper cover assembly 13 and the pot body assembly 11 are interfered by the lid closing buckle 135 and cannot be closed and locked; when the upper cover assembly 13 and the pot body assembly 11 are in the closed lid state and the lid closing buckle 135 is in the locked position, the upper cover assembly 13 has been locked with the pot body assembly 11 through the lid closing buckle 135 and cannot be opened. When the lid closing buckle 135 moves to the unlocked position, the upper cover assembly 13 can be freely opened and closed relative to the pot body assembly 11.

[0099] The setting of the lid closing buckle 135 can improve the connection strength and structural stability between the upper cover assembly 13 and the pot body assembly 11 when closing the lid, prevent the upper cover assembly 13 from being pushed open under the internal pressure, and also prevent the upper cover assembly 13 from being accidentally opened during the cooking process, improving the safety of the cooking process.

[0100] In the embodiment of the present application, a lock release structure 137 is further provided in the upper cover assembly 13. The lock release structure 137 can be used to lock the lid closing buckle 135 so that the lid closing buckle 135 is in a locked state. Specifically, the lock release structure 137 is movably arranged to approach and move away from the lid closing buckle 135, and has a stop position and a release position. Among them, when the lock release structure 137 approaches the lid closing buckle 135, it is located at the stop position. At this time, the lock release structure 137 will prevent the lid closing buckle 135 from switching between the locked position and the unlocked position, so that the lid body 131 cannot be buckled on the pot body assembly 11. For example, the lock release structure 137 can lock the lid closing buckle 135 at the locked position, resulting in interference between the lid closing buckle 135 and the pot body assembly 30, so that the upper cover assembly 13 cannot be closed on the pot body assembly 11; the lid closing buckle 13 can also be locked at the unlocked position by the lock release structure 17, so that the upper cover assembly 13 cannot be locked to the pot body assembly 11 through the lid closing buckle 135. When the lock release structure 137 is at the release position, the lid closing buckle 135 can move, so that it can be switched between the locked position and the unlocked position. The upper cover assembly 13 can be freely opened and closed and locked to the pot body assembly 11 through the lid closing buckle 135. The position of the lock release structure 137 is controlled by the installation state of the diversion structure 133 in the upper cover assembly 13. When the diversion structure 133 is installed in the upper cover assembly 13, the diversion structure 133 makes the lock release structure 137 located at the release position to release the lid closing buckle 135, so that the lid closing buckle 135 is in a movable state, so that the lid closing buckle 135 can move to the locked position and the unlocked position. At this time, the lid closing buckle 135 can be moved to the unlocked position to avoid interference from the lid closing buckle 135 during the process of closing the upper cover assembly 13 on the pot body assembly 11, so that the upper cover assembly 13 can be completely closed on the appliance body 10, and then the lid closing buckle 135 can be moved to the locked position to lock with the appliance body 10. When the diversion structure 133 is not installed in the upper cover assembly 13, the lock release structure 137 is not restricted by the diversion structure 133 and thus approaches the lid closing buckle 135 to be located at the stop position and locks the lid closing buckle 135, so that the lid closing buckle 135 cannot be switched between the locked position and the unlocked position, resulting in the upper cover assembly 13 being unable to be closed or locked to the pot body assembly 11.

[0101] With such a setting, that is, the lock release structure 137, the diversion structure 133 and the lid closing buckle 135 cooperate with each other to form a foolproof design. Thus, it is easy to find when the diversion structure 133 is not installed in the upper cover assembly 13, and it also avoids locking the upper cover assembly 13 and the pot body assembly 11 and enabling the cooking appliance 100 when the diversion structure 133 is not installed, thereby avoiding a large amount of steam being discharged during the cooking process and avoiding damage to the electrical structure in the upper cover assembly 13 by the steam, and improving the use safety of the cooking appliance 100.

[0102] In this embodiment, the locking structure 137 and the closing buckle 135 cooperate in a manner that: the locking structure 137 is set as a supporting structure, a clamping structure, a magnetic attraction structure, etc., so that when the closing buckle 135 is not installed with the guide structure 133, the locking structure 137 presses or clamps or attracts the closing buckle 135 to prevent the closing buckle 135 from moving; the locking structure 137 can also be set as a stop structure, so that the stop structure enters the moving path of the closing buckle 135 to block the movement of the closing buckle 135.

[0103] The cooperation method between the lock-release structure 137 and the guide structure 133 can be that the guide structure 133 is connected to the lock-release structure 137 when assembled on the cover body 131, so as to fix the lock-release structure 137 so that it maintains the state of releasing the cover buckle 135; it can also be that in the following embodiment, a magnetic structure is set to attract the stopper 1371 of the lock-release structure 137 so that the stopper 1371 is away from the cover buckle 135; it can also be that the stopper 1371 is pushed so that the stopper 1371 is away from the cover buckle 135.

[0104] Please refer to Figure 4 and Figure 5 In one embodiment of the present application, the upper cover assembly 10 further includes a reset member 138, and the reset member 138 acts between the lock release structure 137 and the cover body 131, so that the lock release structure 137 has a tendency to remain in the stop position.

[0105] In this embodiment, the upper cover assembly 10 also includes a reset member 138, which is transmission-connected to the lock-release structure 137 and applies a driving force to the lock-release structure 137 so that the stop member 1371 tends to remain in the stop position. In this way, when the guide structure 133 is removed, the reset member 138 drives the lock-release structure 137 to enter the movable path of the closing buckle 135, thereby limiting the movement of the closing buckle 135 and placing the closing buckle 135 in a locked position.

[0106] The way in which the flow-guiding structure 133 imposes constraints on the lock-release structure 137 may be to set a magnetic structure on the flow-guiding structure 133 and the lock-release structure 137, for example, to set a magnet on one of the flow-guiding structure 133 and the lock-release structure 137, and to set a magnet or a magnetic conductive structure on the other structure, so that when the flow-guiding structure 133 is assembled in the upper cover assembly 13, the lock-release structure 137 can be withdrawn from the movable path of the cover-closing buckle 135 by magnetic attraction. Alternatively, magnets can be set on both the flow-guiding structure 133 and the lock-release structure 137, and the lock-release structure 137 can be withdrawn from the movable path of the cover-closing buckle 135 by magnetic repulsion. Alternatively, the flow-guiding structure 133 can be made to resist the lock-release structure 137 when assembled, and the stopper 1371 can be made to move away from and release the cover-closing buckle 135. Of course, there can also be other matching structures between the flow-guiding structure 133 and the lock-release structure 137.

[0107] A magnetic attraction structure or a magnetic repulsion structure may be provided between the reset member 138 and the lock release structure 137 so that the reset member 138 provides a driving force to the lock release structure 137, or an elastic member may be provided to push against or pull the lock release structure 137 so that the lock release structure 137 moves toward the stop position.

[0108] Please refer to Figure 6 In one embodiment of the present application, the cover closing buckle 135 is rotatably disposed on the cover body 131 and has a pressing portion 1353 and a locking portion 1351 located on both sides of the rotation axis. The locking portion 1351 extends toward the inner surface of the cover body 131. When the cover closing buckle 135 is in the unlocking position, the locking portion 1351 is tilted;

[0109] The restoring member 138 can drive the lock-release structure 137 to move to the unlocking path of the cover-closing buckle 135 .

[0110] In this embodiment, the cover closing buckle 135 is rotatably arranged on the cover body 131, wherein the cover closing buckle 135 includes a pressing portion 1353 and a locking portion 1351 connected to each other, the locking portion 1351 extends toward the inner side of the cover body 131, and a hook 1357 is arranged at the free end of the locking portion 1351; correspondingly, the locking portion 115 arranged on the pot body assembly 11 can be a snap-fit ​​groove with an opening toward the side of the pot body assembly 11; or it can be a barb arranged to be opposite to the hook 1357 of the locking portion 1351. Specifically, with the rotation axis of the cover buckle 135 as the boundary, the cover buckle 135 has a pressing portion 1353 and a locking portion 1351 located on both sides of the rotation axis; the surface facing the appliance main body 10 when the upper cover assembly 13 and the appliance main body 10 are closed and locked is defined as the inner surface of the cover body 131, and the locking end of the locking portion 1351 extends to one side of the inner surface of the cover body 131 and is provided with a hook 1357; correspondingly, a snap-fit ​​portion 115 can be provided on the appliance main body 10, and the snap-fit ​​portion 115 can be a card interface or a lock hook for snapping with the hook 1357; that is, when the upper cover assembly 13 and the appliance main body 10 are closed, the locking portion 1351 is hooked on the snap-fit ​​portion 115; when unlocking is required, the locking portion 1351 is lifted up and separated from the snap-fit ​​portion 115. When the upper cover assembly 13 and the device body 10 are not closed and the locking portion 1351 is in the locked position, the locking portion 1351 will interfere with the buckling portion 115 so that the upper cover assembly 13 cannot be closed on the device body 10 .

[0111] The pressing portion 1353 of the lid closing buckle 135 extends away from the locking portion 1351 along the rotation axis. It can be such that the pressing portion 1353 and the locking portion 1351 are substantially in the same extension direction, so that the pressing surface of the pressing portion 1353 faces the side portion of the lid body 131; or it can be such that the pressing portion 1353 and the locking portion 1351 are arranged at an angle. At this time, the pressing surface of the pressing portion 1353 can face the side portion or the top portion of the lid body 131. Because the pressing surface can be pushed to press down the pressing portion 1353, and similar to the lever effect, the locking portion 1351 can be lifted and moved to the unlocking position.

[0112] And the locking and releasing structure 137 can be moved to the unlocking path of the lid closing buckle 135. It can be such that the locking and releasing structure 137 is moved to the lifting path of the locking portion 1351 to directly prevent the locking portion 1351 from lifting; or it can be such that the locking and releasing structure 137 is moved to the pressing path of the pressing portion 1353 to prevent the locking portion 1351 from lifting by preventing the pressing portion 1353 from being pressed down. In both cases, the lid closing buckle 135 can be limited in the locked position. At this time, when the upper lid assembly 13 is closed on the pot body assembly 11, the locking portion 1351 and the fastening portion 115 interfere with each other, resulting in that the upper lid assembly 13 cannot be completely fastened to the pot body assembly 11.

[0113] Please refer to Figure 4 and Figure 5 In some embodiments of the present application, the upper lid assembly 13 further includes an opening button 139. The opening button 139 is arranged on the lid body 131, and the opening button 139 abuts against the pressing surface of the pressing portion 1353 and can move towards and away from the pressing portion 1353.

[0114] In this embodiment, by arranging the opening button 139 on the lid body 131 to press against the pressing portion 1353 of the lid closing buckle 135, it is avoided that the lid closing buckle 135 is directly exposed and directly operated and contacted by the user, which is easy to be damaged; at this time, by pressing the opening button 139, the pressing portion 1353 can be pressed down and the locking portion 1351 can be lifted, so that the lid closing buckle 135 is in the unlocking position.

[0115] Please refer to Figures 4 to 6 In an embodiment of the present application, at least a part of the diversion structure 133 is arranged on the side of the lid closing buckle 135 along the moving direction of the locking and releasing structure 137. The locking and releasing structure 137 is movably arranged between the lid closing buckle 135 and the diversion structure 133 and can be inserted into the pressing path of the pressing portion 1353.

[0116] In this embodiment, the unlocking structure 137 is arranged on the cover 131 in a translatable manner. After the diversion structure 133 is removed, the unlocking structure 137 can move into the pressing path of the pressing part 1353. The surface of the pressing part 1353 for being pressed is defined as the pressing surface, and the unlocking structure 137 can move to the side of the pressing part 1353 away from the pressing surface. That is to say, when the upper cover assembly 13 is equipped with the diversion structure 133, the unlocking structure 137 is restricted by the diversion structure 133 and moves away from the lid closing buckle 135 to the release position. At this time, the lid closing buckle 135 can freely rotate to the unlocking position and the locking position. When the diversion structure 133 is removed from the upper cover assembly 13, the unlocking structure 137 is not restricted by the diversion structure 133 and moves to the stop position under the drive of the reset member 138, and is inserted into the side of the pressing part 1353 away from the pressing surface, so as to prevent the pressing part 1353 from being pressed down and prevent the locking part 1351 from tilting up, thereby avoiding the lid closing buckle 135 from rotating to the unlocking position and locking the lid closing buckle 135 at the locking position. Among them, when installing the diversion structure 133, the diversion structure 133 can be connected to the unlocking structure 137 or the unlocking structure 137 can be fixed by pressing, clamping and other methods; it can also be that part of the diversion structure 133 is located on the moving path of the unlocking structure 137 to restrict the movement of the unlocking structure 137; it can also be the way of setting the magnetic attraction structure in the following embodiment to adsorb the unlocking structure 137 so that the unlocking structure 137 is located at a position away from the lid closing buckle 135, so that the lid closing buckle 135 can move.

[0117] In addition, a reset structure can be arranged on the lid closing buckle 135, for example, a torsion spring is arranged on the rotating shaft 1355 of the lid closing buckle 135, so that the lid closing buckle 135 automatically returns to the locking position when the pressing part 1353 is released, improving the convenience of use.

[0118] Please refer to Figure 4 and Figure 5 In an embodiment of the present application, the diversion structure 133 is provided with a first magnetic member 1335, and the unlocking structure 137 is provided with a second magnetic member 1373. The first magnetic member 1335 and the second magnetic member 1373 attract each other to make the unlocking structure 137 approach the diversion structure 133 and move to the release position.

[0119] In this embodiment, part of the diversion structure 133 is arranged on the side of the lid closing buckle 135, and the locking and releasing structure 137 can translate between the lid closing buckle 135 and the diversion structure 133. In addition, a magnetic attraction structure is arranged between the diversion structure 133 and the locking and releasing structure 137. A first magnetic member 1335 is arranged on the diversion structure 133, so that the locking and releasing structure 137 includes a stop member 1371 and a second magnetic member 1373. At least one of the first magnetic member 1335 and the second magnetic member 1373 is a magnet. One of the first magnetic member 1335 and the second magnetic member 1373 can be set as a magnetic conductive member, and the magnetic conductive member can be an article made of metal materials such as iron, cobalt, nickel, etc.; thus, the first magnetic member 1335 and the second magnetic member 1373 attract each other. For example, a magnet can be arranged on the diversion structure 133, and a magnetic conductive member or a magnet can be arranged on the locking and releasing structure 137; or a magnetic conductive member can be arranged on the diversion structure 133, and a magnet can be arranged on the locking and releasing structure 137. With such an arrangement, when the diversion structure 133 is installed on the lid body 131, there is a magnetic attraction force acting between the diversion structure 133 and the locking and releasing structure 137; the locking and releasing structure 137 moves in a direction close to the diversion structure 133 and away from the lid closing buckle 135, so that the stop member 1371 no longer limits the lid closing buckle 135, and the lid closing buckle 135 can move freely.

[0120] Please refer to Figure 4 and Figure 5 , in an embodiment of the present application, a fixing portion 1336 protrudes from the side wall of the diversion structure 133 facing the locking and releasing structure 137, and an installation cavity 1337 is formed in the fixing portion 1336, and the first magnetic member 1335 is arranged in the installation cavity 1337.

[0121] In this embodiment, a fixing portion 1336 protrudes from the side wall of the diversion structure 133 close to the locking and releasing structure 137 toward the side of the stop member 1371, and the first magnetic member 1335 is fixed in the installation cavity 1337 of the fixing portion 1336; with such an arrangement, the first magnetic member 1335 can be limited and fixed, and the first magnetic member 1335 is located at the position closest to the locking and releasing structure 137, reducing the distance between the first magnetic member 1335 and the second magnetic member 1373, increasing the magnetic attraction force between the first magnetic member 1335 and the second magnetic member 1373, and increasing the attraction force received by the locking and releasing structure 137, so that when the diversion structure 133 is installed on the upper cover assembly 13, the stop member 1371 is stably in a position away from the lid closing buckle 135, avoiding the situation that the diversion structure 133 cannot stably restrain the stop member 1371, resulting in the stop member 1371 approaching and limiting the lid closing buckle 135, making the cooking appliance 100 unable to close the lid.

[0122] Please refer to Figure 4 and Figure 5, in an embodiment of the present application, the second magnetic member 1373 is disposed at one end of the lock release structure 137 facing the diversion structure 133.

[0123] In this embodiment, the lock release structure 137 includes a stopper 1371 and a second magnetic member 1373. The second magnetic member 1373 is disposed at one end of the stopper 1371 facing the diversion structure 133 to reduce the distance between the second magnetic member 1373 and the first magnetic member 1335, improve the magnetic attraction between the first magnetic member 1335 and the second magnetic member 1373, and increase the attraction force received by the stopper 1371, so that when the upper cover assembly 13 is equipped with the diversion structure 133, the stopper 1371 is stably in the release position, preventing the diversion structure 133 from being unable to stably restrain the lock release structure 137, which may cause the lock release structure 137 to move to the stop position and prevent the cooking appliance 100 from closing the lid.

[0124] In some embodiments, a fixing portion 13366 is convexly provided on the side wall of the diversion structure 133 toward the stopper 1371 to fix the first magnetic member 1335 in the installation cavity 1337 of the fixing portion 1336. At the same time, a second magnetic member 1373 is disposed at one end of the stopper 1371 facing the diversion structure 133. This arrangement can not only limit and fix the first magnetic member 1335 fixed in the diversion structure 133, but also reduce the distance between the first magnetic member 1335 and the second magnetic member 1373, improve the magnetic attraction between the first magnetic member 1335 and the second magnetic member 1373, and increase the attraction force received by the stopper 1371, so that when the upper cover assembly 13 is equipped with the diversion structure 133, the stopper 1371 is stably in a position away from the lid closing buckle 135, preventing the diversion structure 133 from being unable to stably restrain the stopper 1371, which may cause the stopper 1371 to approach and limit the lid closing buckle 135, making the cooking appliance 100 unable to close the lid.

[0125] Please refer to Figure 7 and Figure 8 , in an embodiment of the present application, the lock release structure 137 is vertically movable along the thickness direction of the cover body 131 and can move to the warping path of the lock portion 1351;

[0126] The diversion structure 133 presses against the lock release structure 137 and causes the lock release structure 137 to move away from the inner surface of the cover body 131 and move to the release position.

[0127] In this embodiment, the lock release structure 137 can be lifted and lowered along the thickness direction of the cover body 131 to reach the release position and the stop position respectively. The release position is higher than the tilted unlocking position of the lock buckle 1351, and the stop position is located on the tilting path of the lock buckle 1351. When the guide structure 133 is installed in the upper cover assembly 13, the guide structure 133 can press the lock release structure 137 to move the lock release structure 137 away from the inner surface of the upper cover assembly 13 to the release position, so that the lock release structure 137 is lifted to The release position is away from the cover buckle 135; it can be understood that when the guide structure 133 is installed on the cover body 131, the guide structure 133 is also fitted or embedded toward the inner surface of the cover body 131, that is, at this time, the driving and locking action of the guide structure 133 on the locking structure 137 is consistent with the installation action of the guide structure 133, so that the locking structure 137 can be directly driven away from the cover buckle 135 to unlock the cover buckle 135 while installing the guide structure 133, and the operation is simple and convenient.

[0128] Please refer to Figures 4 to 8 In one embodiment of the present application, a mounting seat 1313 is provided on the inner surface of the cover body 131 , and the mounting seat 1313 forms a limiting groove 1314 , and the guide structure 133 is disposed in the limiting groove 1314 .

[0129] In this embodiment, the side facing the pot body assembly 11 when the cover assembly 13 and the pot body assembly 11 are closed and locked is the inner side of the cover body 131, and a mounting seat 1313 is provided on the inner side of the cover body 131. A limiting groove 1314 is formed in the mounting seat 1313, and the flow guiding structure 133 is detachably fixed in the limiting groove 1314. Such a configuration can not only position the flow guiding structure 133 on the cover body 131, improve the installation accuracy and convenience of the flow guiding structure 133, but also improve the connection strength between the flow guiding structure 133 and the cover body 131, and improve the position stability of the flow guiding structure 133.

[0130] In some embodiments, the lock-release structure 137 can be pressed by the guide structure 133 and away from the closing buckle 135. At this time, an avoidance hole 1317 connected to the limiting groove 1314 can be opened on the side wall of the mounting seat 1313, so that one end of the lock-release structure 137 can pass through the avoidance hole 1317 and enter the limiting groove 1314, and be constrained by the guide structure 133.

[0131] In one embodiment of the present application, the cover body 131 includes a surface cover 1311 and an inner cover 1312, the surface cover 1311 is covered on the inner cover 1312, and an installation space is formed between the surface cover 1311 and the inner cover 1312;

[0132] The lock release structure 137 is disposed in the installation space. The inner cover 1312 is recessed with the mounting seat 1313 on one side facing the installation space. The inner cover 1312 is provided with an installation opening communicating with the installation space, and the lid closing buckle 135 is movably disposed in the installation opening.

[0133] In this embodiment, the lid body 131 includes an inner cover 1312 and a face cover 1311 covering the outside of the inner cover 1312. An installation space is formed between the face cover 1311 and the inner cover 1312, and the lock release structure 137 is arranged in the installation space. An installation opening communicating with the installation space is formed in the inner cover 1312, and the lid closing buckle 135 is arranged at the installation opening, which can not only expose the lid closing buckle 135 inside the upper lid assembly 13 to lock with the pot body assembly 11, but also make part of the lid closing buckle 135 exposed in the installation space, so that the lock release structure 137 can limit the lid closing buckle 135 to lock the lid closing buckle 135.

[0134] The inner cover 1312 is recessed with a mounting seat 1313 on one side facing the installation space for mounting the diversion structure 133. It can make the diversion structure 133 and the lock release structure 137 located at approximately the same height position, so as to facilitate setting the cooperation relationship between the diversion structure 133 and the lock release structure 137, and can also protect the lock release structure 137 to avoid the lock release structure 137 directly contacting the steam when the cooking appliance 100 closes the lid for cooking.

[0135] Please refer to Figures 4 to 6 , in an embodiment of the present application, the reset member 138 is an elastic member and abuts against the lock release structure 137;

[0136] And / or, the lid body 131 is provided with a guide groove 1315, and the lock release structure 137 is slidably disposed in the guide groove 1315.

[0137] In this embodiment, the reset member 138 is set as an elastic member, such as a spring, a gas spring, an elastic airbag, etc. The elastic member is arranged on the side of the lock release structure 137 away from the lid closing buckle 135. With such a setting, when the lock release structure 137 is constrained by the diversion structure 133 and moves away from the lid closing buckle 135, the elastic member is compressed; when the diversion structure 133 is removed, the elastic member returns to its original length and pushes the lock release structure 137 towards the lid closing buckle 135 so that the lock release structure 137 is inserted into the moving path of the lid closing buckle 135.

[0138] In this embodiment, a guiding groove 1315 is provided on the cover body 131, and the locking and releasing structure 137 is slidably inserted into the guiding groove 1315. With such an arrangement, the locking and releasing structure 137 can be positioned and installed, improving the installation accuracy and convenience of the locking and releasing structure 137; and the guiding groove 1315 limits the locking and releasing structure 137, enabling the locking and releasing structure 137 to move along the guiding groove 1315 to approach and move away from the lid closing buckle 135. This can prevent the locking and releasing structure 137 from being displaced during movement, thereby avoiding damage to other components of the upper cover assembly 13 or causing the locking and releasing structure 137 to be blocked and unable to accurately approach the lid closing buckle 135 to limit the lid closing buckle 135. Ensure that the stopping structure can lock the lid closing buckle 135 when the diversion structure 133 is not installed, preventing the cooking assembly from closing the lid and cooking.

[0139] Among them, the guiding groove 1315 can be formed by protruding two opposite limiting parts on the surface of the cover body 131 to form the guiding groove 1315 between the two limiting parts; in some embodiments, a mounting seat 1313 for mounting the diversion structure 133 is provided on the cover body 131, and the guiding groove 1315 can be recessed on the outer side wall of the mounting seat 1313; of course, two limiting parts can also be provided simultaneously and a groove can be formed on the outer side wall of the mounting seat 1313 to form the guiding groove 1315.

[0140] In some embodiments, a spring is used as the elastic member, and the spring can be clamped between the bottom wall of the guiding groove 1315 and the stopper 1371. Additionally, a limiting post 1316 can be protruded on the bottom wall of the guiding groove 1315, so that one end of the spring away from the stopper 1371 is sleeved on the limiting post 1316, better playing a role in limiting the spring.

[0141] Please refer to Figure 10 , based on the above hardware architecture, the present application also proposes a control method for a cooking appliance 100, which is applied to the cooking appliance 100 described in any of the foregoing embodiments, and the control method includes the following steps:

[0142] Step S10, obtaining the expected weight gain value of the condensation chamber 113 under the current heating power adjustment ratio condition in the current heating cycle.

[0143] Step S20, obtaining the actual weight gain value of the condensation chamber 113 under the current heating power adjustment ratio condition in the current heating cycle.

[0144] Step S30, confirming the air leakage data of the cooking appliance 100 according to the actual weight gain value and the expected weight gain value.

[0145] The cooking appliance 100 proposed in this application can be a rice cooker, a pressure cooker, a steam box, a steam oven, or other appliances that generate steam during the cooking process, etc. Start the cooking program to make the heating structure in the cooking program work and heat the cooking space 111 and the ingredients in the cooking space 111; the cooking mode can be cooking rice, cooking porridge, steaming, etc., and steam will be generated in the cooking space 111 during the heating process. By providing a condensation chamber 113 communicated with the cooking space 111, the steam generated in the cooking space 111 during the cooking process can enter the condensation chamber 113 and contact the cooling water in the condensation chamber 113 to be condensed into water, so as to achieve the purpose of discharging micro-steam or no steam during the cooking process, thereby avoiding the influence of steam on the surrounding environment and avoiding scalding the user by steam.

[0146] As the steam continuously enters the condensation chamber 113 and condenses into water, the weight of the condensation chamber 113 will increase. The weight sensor 30 installed on the cooking appliance 100 can continuously or periodically record the weight of the condensation chamber 113. For example, the weight of the condensation chamber 113 can be recorded at the beginning and end time points of each heating cycle; thus, the actual weight gain value of the condensation chamber 113 in each heating cycle can be obtained; where the weight of the condensation chamber 113 refers to the weight of the container forming the condensation chamber 113 and the contents in the condensation chamber 113. The increase in the amount of water in the condensation chamber 113 is related to the current steam generation amount, and the current steam generation amount is also related to the heating power adjustment ratio of the cooking appliance 100 in the current heating cycle. During the cooking process, obtain the heating power adjustment ratio in the current heating cycle, and can convert or obtain the expected weight gain value of the condensation chamber 113 under the current heating power adjustment ratio through a preset corresponding relationship. For example, in some embodiments, the corresponding relationship between the gear of the heating power adjustment ratio and the expected weight gain value of the condensation chamber 113 is pre-converted and written into the cooking program, so that when the heating power adjustment ratio of the current heating cycle is obtained, the expected weight gain value of the condensation chamber 113 in the current cycle can be directly determined. It can also be to obtain the expected weight gain value of the condensation chamber 113 based on the heating power adjustment ratio, heating power, heating cycle time, specific heat capacity, condensation rate, etc.

[0147] By comparing the actual weight gain value of the condensation chamber 113 with the expected weight gain value, the air leakage data of the cooking appliance 100 can be confirmed. Among them, the air leakage data of the cooking appliance 100 includes air leakage and no air leakage, and can also include data such as the degree of air leakage. For example, in the following embodiments, if the actual weight gain value is lower than the expected weight gain value, it can be confirmed that there is an air leakage problem with the cooking appliance 100. In addition, the degree of air leakage can also be confirmed according to the difference between the actual weight gain value and the expected weight gain value; thus, corresponding operation instructions are executed according to the air leakage data. For example, an air leakage reminder instruction can be executed when air leakage is confirmed; a warning structure can be set on the cooking appliance 100, such as a buzzer, a warning light, etc. When it is confirmed that the cooking appliance 100 has air leakage, a warning is issued by the warning structure on the cooking appliance 100 to enable the user to know the air leakage situation; or, a warning message can be sent to a mobile phone, a computer or other terminals to inform the user that there is an air leakage problem. In addition, the cooking appliance 100 can also terminate the cooking program for maintenance after confirming the air leakage condition; or, when it is confirmed that the air leakage of the cooking appliance 100 is relatively slight, the amount of steam generated per unit time can be reduced by reducing the heating power adjustment ratio or the heating power, etc., to prevent too much instantaneous steam leakage from entering the cover 131 and causing electrical component short-circuit damage problems.

[0148] Please refer to Figure 11 In an embodiment of the present application, in the step of confirming the air leakage data of the cooking appliance 100 according to the actual weight gain value and the expected weight gain value, it includes:

[0149] Step S31, when the actual weight gain value is lower than the expected weight gain value, it is confirmed that the cooking appliance 100 has air leakage.

[0150] In this embodiment, the increase in the amount of water in the condensation chamber 113 is related to the current steam generation amount, and the current steam generation amount is also related to the heating power adjustment ratio of the cooking appliance 100 in the current heating cycle. During the cooking process, the heating power adjustment ratio in the current heating cycle is obtained, and the expected weight gain value of the condensation chamber 113 can be obtained by conversion or through a preset corresponding relationship under the current heating power adjustment ratio condition. If the actual weight gain value of the water measured in the condensation chamber is lower than the expected weight gain value, it can be judged that there is partial steam loss that has not condensed into water, and it can be confirmed that there is an air leakage problem with the current cooking appliance 100.

[0151] Please refer to Figure 12 In an embodiment of the present application, after the step of confirming that the cooking appliance 100 has air leakage when the actual weight gain value is lower than the expected weight gain value, it further includes:

[0152] Step S40, when the actual weight gain value is lower than the lowest expected weight gain value, stop heating.

[0153] And / or, step S50, under the condition that the actual weight gain value is not lower than the lowest expected weight gain value, reduce the heating power regulation ratio.

[0154] In this embodiment, when it is confirmed that there is a heating problem with the cooking appliance 100 by comparing the actual weight gain value and the expected weight gain value of the current heating cycle, the air leakage degree of the cooking appliance 100 is confirmed by confirming the reduction degree of the condensed water in the current heating cycle; specifically, a lowest weight gain value of the condensation chamber 113 is preset, and the lowest weight gain value can be set according to requirements, for example, set to half of the expected weight gain value, 30%, or other values. If the actual weight gain value of the condensation chamber 113 is lower than the lowest expected weight gain value, the cooking program confirms that the cooking appliance 100 is in a relatively serious air leakage condition; since the diversion structure 133 for guiding steam is located in the upper cover assembly 13, there is a risk at this time that the steam leakage will damage the electrical components in the upper cover assembly 13. The cooking program stops the operation of the heating structure to stop heating the cooking space 111, so as to avoid continuing to generate steam; at the same time, the cooking program controls the warning structure to remind the user to repair the cooking appliance 100, such as checking and adjusting the installation state of the diversion structure 133.

[0155] In some embodiments, if the actual weight gain of the condensation chamber 113 is lower than the expected weight gain value but not lower than the lowest expected weight gain value, at this time the cooking program confirms that the air leakage of the cooking appliance 100 is relatively slight; the cooking program can reduce the heating power regulation ratio and continue heating; for example, the standard heating power regulation ratio preset in the non-air leakage state is the first heating power regulation ratio. Under the condition that the actual weight gain of the condensation chamber 113 is lower than the expected weight gain value but not lower than the lowest expected weight gain value, the heating structure can be operated at a preset second heating power regulation ratio, where the second heating power regulation ratio is less than the first heating power regulation ratio. And because the heating power regulation ratio is reduced, the heating time in the heating cycle is shortened at this time, thereby reducing the generation and flow rate of steam, avoiding too sudden steam leakage into the upper cover assembly 13 and causing short-circuit damage to the electrical components. And, remind the user to repair the cooking appliance 100 after cooking, such as checking and adjusting the installation state of the diversion structure 133.

[0156] Please refer to Figure 13 , in an embodiment of the present application, in the step of reducing the heating power regulation ratio under the condition that the actual weight gain value is not lower than the lowest expected weight gain value, it includes:

[0157] Step S51, under the condition that the actual weight gain value is not lower than the lowest expected weight gain value, adjust the heating power regulation ratio to not exceed 1 / 4 of the original heating power regulation ratio.

[0158] In this embodiment, when it is confirmed that the air leakage problem of the current cooking appliance 100 is relatively minor, that is, when it is confirmed that the weight gain value is lower than the expected weight gain value and not lower than the minimum expected weight gain value, the heating structure operates at a preset second heating power adjustment ratio, where the second preset power adjustment ratio is not higher than 1 / 4 of the first heating power adjustment ratio preset in the non-air leakage state. Such a setting can effectively reduce the amount of steam generated per unit time; thus, it can effectively reduce the amount of steam entering the diversion structure 133 in the upper cover assembly 13 and reduce the speed of steam entering the diversion structure 133, thereby preventing the problem of overly rapid steam leakage due to a large amount of high-speed steam surging into the diversion structure 133, and reducing the risk of damage to the electrical components in the upper cover assembly 13.

[0159] Please refer to Figure 14 , in an embodiment of the present application, the step of obtaining the expected weight gain value of the condensation chamber 113 under the condition of the current stage's heating power adjustment ratio includes:

[0160] Step S11, obtaining the theoretical steam generation amount according to the heating power adjustment ratio of the current heating cycle;

[0161] Step S12, obtaining the expected weight gain value of the condensation chamber 113 according to the theoretical steam generation amount and the steam condensation rate.

[0162] The amount of steam generated during the cooking process is related to the heating power adjustment ratio of the cooking appliance 100. The heating power adjustment ratio is the ratio of the heating time of the cooking appliance 100 in a power adjustment cycle to the time of the power adjustment cycle; that is, assuming that the cooking stage is divided into multiple heating cycles, the heating power adjustment ratio can reflect the heating time of each heating cycle. Thus, under the condition of obtaining the heating power adjustment ratio of the current stage, the heating energy input by the heating structure can be obtained according to the heating time, heating power, etc. of the current stage, and the theoretical steam generation amount in the current heating cycle can be converted therefrom. The steam enters the condensation chamber 113 from the cooking space 111 and condenses when it meets water. The amount of water condensed can be obtained according to the condensation efficiency of the steam, and thus the actual weight gain value of the condensation chamber 113 in the current heating cycle can be obtained.

[0163] If the actual weight gain value is lower than the expected weight gain value, it can be confirmed that there is an air leakage problem with the cooking appliance 100. Thus, the heating power or heating power adjustment ratio during the cooking process can be adjusted, or the cooking program can be directly closed to repair the cooking appliance 100.

[0164] Please refer to Figure 15 , in an embodiment of the present application, the step of obtaining the theoretical steam generation amount according to the heating power adjustment ratio of the current heating cycle includes:

[0165] Step S111: Obtain the theoretical steam generation amount based on the heating power adjustment ratio of the current heating cycle, the cooking time of the heating cycle, the heating power, the cooking space 111, the thermal conductivity of the food ingredients, the initial water temperature in the cooking space 111 at the start of the current heating cycle, the specific heat capacity of water, and the latent heat of vaporization coefficient of water.

[0166] Among them, the theoretical steam generation amount = cooking time * heating power adjustment ratio * heating power * thermal conductivity / [(100°C - initial water temperature) * specific heat capacity of water * latent heat of vaporization of water].

[0167] In this embodiment, the theoretical steam generation amount during the heating cycle is related to the heating power adjustment ratio of the current heating cycle, the preset cooking time of the current heating cycle, the heating power, the thermal conductivity efficiency of the cooking utensil and the food ingredients, the initial water temperature of the current heating cycle, the specific heat capacity of water, and the latent heat of vaporization of water, etc. Among them, the heating power adjustment ratio and the preset cooking time of the heating cycle can obtain the actual heating time of the current heating cycle. Then, combined with the heating power and the thermal conductivity, the heat transferred to the food ingredients during the current heating cycle can be obtained. Under the condition of normal atmospheric pressure, the highest temperature to which water can be heated is 100°C. Therefore, according to the initial temperature of water and the specific heat capacity of water, the heat required to heat the water to 100°C can be obtained. Then, combined with the latent heat of vaporization of water (i.e., the heat required to evaporate one mole of a substance at a certain temperature) and the heat transferred to the food ingredients during the current heating cycle, the theoretical steam generation amount of the current heating cycle can be calculated by conversion. The conversion formula for the theoretical steam generation amount is roughly the theoretical steam generation amount = cooking time * heating power adjustment ratio * heating power * thermal conductivity / [(100°C - initial water temperature) * specific heat capacity of water * latent heat of vaporization of water]. It should be noted that according to the different environments where the cooking appliance 100 is located or considering other factors comprehensively, the above conversion formula can also be adjusted adaptively. For example, differences in environmental atmospheric pressure will cause differences in the maximum water temperature that water can reach. At this time, the difference between the maximum water temperature and the initial water temperature needs to be calculated according to the actual maximum water temperature that can be reached.

[0168] Please refer to Figure 17 , in an embodiment of the present application, the step of obtaining the expected weight gain value of the condensation chamber 113 under the current heating power adjustment ratio of the current heating cycle includes:

[0169] Under the boiling condition, obtain the expected weight gain value of the condensation chamber 113 under the current heating power adjustment ratio of the current heating cycle.

[0170] The main steam generation stage is the boiling stage. During this process, steam generation is relatively stable, and the actual steam generation amount is closer to the theoretical generation amount under the preset heating power adjustment ratio. Therefore, after entering the boiling stage, judging whether the cooking appliance 100 leaks air by the weight gain value of the condensation chamber 113 results in a more accurate detection and reduces the possibility of misjudgment. The method for judging the entry into the boiling stage can be based on cooking time, whether there are bubbles generated in the cooking cavity, the water temperature in the cooking space 111, etc.

[0171] Please refer to Figure 16 , in an embodiment of the present application, in the step of confirming that the cooking appliance 100 leaks air under the condition that the actual weight gain value is lower than the expected weight gain value, it includes:

[0172] Step S311, confirming that the cooking appliance 100 leaks air under the condition that the actual weight gain values in a preset number of consecutive heating cycles are all lower than the expected weight gain value.

[0173] In the embodiment of the present application, it is determined whether the cooking appliance 100 has an air leakage problem by judging whether the actual weight gain value in the condensation chamber 113 is less than the expected weight gain value. During the cooking process, even if the cooking appliance 100 has no air leakage problem, it cannot be completely guaranteed that the actual weight gain value of the condensation chamber 113 in each divided heating cycle is the same as the theoretical weight gain value; for example, in the initial heating stage, since both the water and ingredients in the cooking space 111 absorb heat, and the heat generated by heating is not completely provided to the cooking space 111 and there is some dissipation, the actual steam generation amount is also lower than the theoretical steam generation amount; as the cooking program continues, the actual steam generation amount will tend to be closer to the theoretical steam generation amount; therefore, in this embodiment, it is possible to judge the actual weight gain value of the condensation chamber 113 in two or more consecutive heating cycles. If the actual weight gain value is lower than the expected weight gain value in two or more consecutive heating cycles, it is confirmed that the cooking appliance 100 indeed has an air leakage problem, and the user needs to be reminded to perform maintenance.

[0174] In this embodiment, by confirming the actual weight gain value of the condensation chamber 113 in consecutive heating cycles, the problem of misjudgment can be avoided, and the accuracy of the airtightness detection of the cooking appliance 100 can be improved.

[0175] In an embodiment of the present application, the step of obtaining the actual weight gain value of the condensation chamber 113 under the current heating power adjustment ratio in the current heating cycle includes:

[0176] Obtaining the detection data of the weight sensor 30 in the current heating cycle to obtain the actual weight gain value of the condensation chamber 113 under the current heating power adjustment ratio.

[0177] In this embodiment, the weight of the condensation chamber 113 is measured by a weight sensor 30 provided on the cooking appliance 100. The weight sensor 30 can be arranged below the water tank forming the condensation chamber 113 to detect the total weight of the water tank and its contents. The weight sensor 30 can either detect the weight of the water in the condensation chamber 113 in real time or at regular intervals, and transmit the weight values of two time periods to the processing module, so as to calculate the actual weight gain value.

[0178] The present application also provides a readable storage medium storing program instructions, which, when executed by a processor, implement the control method described in any of the foregoing embodiments.

[0179] From the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present application, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a readable storage medium as described above (such as ROM / RAM, magnetic disk, optical disc), and includes several instructions for causing a terminal device (which can be a mobile phone, a computer, a server, a cooking device, or a network device, etc.) to execute the methods described in various embodiments of the present application.

[0180] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the description of the present invention and the content of the drawings under the inventive concept of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A cooking appliance, characterized in that, Comprising: An appliance main body, within which a cooking space, a condensation chamber and a communication channel are formed, and the communication channel communicates the cooking space and the condensation chamber; And A weight sensor, which is disposed on the appliance main body and is used to detect the weight of the condensation chamber structure.

2. The cooking appliance according to claim 1, characterized in that The appliance main body includes: A pot body assembly, which includes a pot body and a water tank. The pot body and the water tank are arranged side by side. The cooking space is formed within the pot body, and the condensation chamber is formed within the water tank. The weight sensor is disposed at the bottom of the water tank; and An upper cover assembly, within which the communication channel is formed, and the upper cover assembly covers the pot body assembly.

3. The cooking appliance according to claim 2, wherein, The upper cover assembly includes a cover body and a diversion structure. The cover body is disposed on the pot body assembly in an openable and closable manner. The diversion structure is detachably disposed on the cover body, and the communication channel is formed in the diversion structure.

4. The cooking appliance according to claim 3, wherein, The upper cover assembly further includes: A lid closing buckle, which is movably disposed on the cover body and has a locking position and an unlocking position. When the lid closing buckle is in the unlocking position, the cover body can be opened and closed with the pot body assembly. When the lid closing buckle is in the locking position, it can lock the cover body with the pot body assembly; and A lock release structure, which is movably disposed on the cover body and has a stopping position and a releasing position. When the lock release structure is in the stopping position, it can limit the lid closing buckle from switching between the locking position and the unlocking position relative to the cover body. When the lock release structure is in the releasing position, the lid closing buckle can switch between the locking position and the unlocking position relative to the cover body; The diversion structure installed on the cover body causes the lock release structure to be in the releasing position; After the diversion structure is removed from the cover body, the lock release structure is in the stopping position.

5. The cooking appliance according to claim 4, characterized in that, The upper cover assembly further includes a reset member, which acts between the lock release structure and the cover body, so that the lock release structure has a tendency to remain in the stopping position.

6. The cooking appliance according to claim 5, characterized in that, The lid closing buckle is rotatably disposed on the cover body and has a pressing portion and a locking portion located on both sides of the rotation axis. The locking portion extends towards the inner surface of the cover body. When the lid closing buckle is in the unlocking position, the locking portion is upturned; The reset member can drive the lock release structure to move onto the unlocking path of the lid closing buckle.

7. The cooking appliance according to claim 6, characterized in that, At least part of the diversion structure is disposed on the side of the lid closing buckle along the moving direction of the lock release structure. The lock release structure is movably disposed between the lid closing buckle and the diversion structure and can be inserted into the pressing path of the pressing portion.

8. The cooking appliance according to claim 6, wherein, The lock release structure can be lifted and lowered along the thickness direction of the cover body and can move onto the upturning path of the locking portion; The diversion structure presses against the lock release structure and moves the lock release structure in a direction away from the inner surface of the cover body to the releasing position.

9. The cooking appliance according to claim 5, characterized in that, The reset member is an elastic member and abuts against the lock release structure; And / or, the cover body is provided with a guiding groove, and the lock release structure is slidably disposed in the guiding groove.

10. The cooking appliance according to claim 4, characterized in that, The diversion structure is provided with a first magnetic member, and the locking and releasing structure is provided with a second magnetic member. The first magnetic member and the second magnetic member attract each other to move the locking and releasing structure to the release position.

11. The cooking appliance according to claim 10, characterized in that, The side wall of the diversion structure facing the locking and releasing structure is convexly provided with a fixing portion, and an installation cavity is formed in the fixing portion. The first magnetic member is arranged in the installation cavity; and / or, the second magnetic member is arranged at one end of the locking and releasing structure facing the diversion structure.

12. The cooking appliance according to any one of claims 4 to 11, characterized in that, An installation seat is arranged on the inner surface of the cover body, and a limiting groove is formed in the installation seat. The diversion structure is arranged in the limiting groove.

13. The cooking appliance according to claim 12, wherein, The cover body includes a face cover and an inner cover. The face cover covers the inner cover, and an installation space is formed between the face cover and the inner cover; The locking and releasing structure is arranged in the installation space. The inner cover is recessed towards the installation space to form the installation seat, and an installation opening communicating with the installation space is formed in the inner cover. The closing cover buckle is movably arranged in the installation opening.

14. A control method for a cooking appliance, applied to the cooking appliance according to any one of claims 1 to 13, characterized in that, The control method includes the following steps: Obtain the expected weight gain value of the condensation cavity under the current heating power adjustment ratio in the current heating cycle; Obtain the actual weight gain value of the condensation cavity under the current heating power adjustment ratio in the current heating cycle; According to the actual weight gain value and the expected weight gain value, confirm the air leakage data of the cooking appliance.

15. The control method according to claim 14, wherein The step of confirming the air leakage data of the cooking appliance according to the actual weight gain value and the expected weight gain value includes: When the actual weight gain value is lower than the expected weight gain value, it is confirmed that the cooking appliance leaks air.

16. The control method according to claim 15, wherein, After the step of confirming that the cooking appliance leaks air when the actual weight gain value is lower than the expected weight gain value, the following is further included: When the actual weight gain value is lower than the preset minimum expected weight gain value, stop heating; and / or, when the actual weight gain value is not lower than the minimum expected weight gain value, reduce the heating power adjustment ratio.

17. The control method according to claim 16, wherein The step of reducing the heating power adjustment ratio when the actual weight gain value is not lower than the preset minimum expected weight gain value includes: When the actual weight gain value is not lower than the minimum expected weight gain value, adjust the heating power adjustment ratio to not exceed 1 / 4 of the original heating power adjustment ratio.

18. The control method according to claim 15, wherein The step of confirming that the cooking appliance leaks air when the actual weight gain value is lower than the expected weight gain value includes: When the actual weight gain values in a preset number of consecutive heating cycles are all lower than the expected weight gain value, it is confirmed that the cooking appliance leaks air.

19. The control method according to claim 14, wherein The step of obtaining the expected weight gain value of the condensation cavity under the current heating power adjustment ratio in the current heating cycle includes: Obtain the theoretical steam generation amount according to the heating power adjustment ratio of the current heating cycle; Obtain the expected weight gain value of the condensation cavity according to the theoretical steam generation amount and the steam condensation rate.

20. The control method according to claim 19, wherein, The step of obtaining the theoretical steam generation amount according to the heating power adjustment ratio of the current heating cycle includes: Obtain the theoretical steam generation amount according to the heating power adjustment ratio of the current heating cycle, the cooking time of the heating cycle, the heating power, the cooking space and the thermal conductivity of the food material, the initial water temperature in the cooking space at the start of the current heating cycle, the specific heat capacity of water, and the vaporization latent heat coefficient of water; Among them, the theoretical steam generation amount = cooking time * heating power adjustment ratio * heating power * thermal conductivity / [(100°C - initial water temperature) * specific heat capacity of water * vaporization latent heat of water].

21. The control method according to claim 14, characterized in that The step of obtaining the expected weight gain value of the condensation chamber under the current heating power regulation ratio in the current heating cycle includes: Under boiling conditions, obtain the expected weight gain value of the condensation chamber under the current heating power regulation ratio in the current heating cycle.

22. The control method according to any one of claims 14 to 21, characterized in that The step of obtaining the actual weight gain value of the condensation chamber in the current heating cycle under the current heating power regulation ratio includes: Obtain the detection data of the weight sensor in the current heating cycle to obtain the actual weight gain value of the condensation chamber under the current heating power regulation ratio.

23. A readable storage medium, characterized in that, The readable storage medium stores program instructions that, when executed by a processor, implement the control method described in any one of claims 14 to 22.

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