Lock structure, cooking appliance, control method and device thereof, and readable storage medium

Abstract

The present invention provides a lock structure, a cooking appliance, a control method and device therefor, and a readable storage medium. The lock structure includes a door hook, a housing, a stopper, and a drive assembly. The door hook is configured to engage with a lock hook in the cooking appliance. The housing is provided with a stopper, and the stopper is slidably connected to the housing. When the stopper is in a first position, the stopper locks with the stopper, thereby securing the door hook. When the stopper is in a second position, the stopper releases the stopper from securing the door hook. When the drive assembly is energized, it drives the stopper to move between the first and second positions.

Description

Technical Field

[0001] The present invention belongs to the technical field of food processing equipment, and in particular relates to a lock structure, a cooking appliance, a control method for a cooking appliance, a control device for a cooking appliance, and a readable storage medium. Background Art

[0002] After cooking, users can open the door assembly directly. However, the food that has just been cooked is often very hot, which may cause burns to the user. This is especially true when children use the cooking appliance to cook food, which is more likely to cause accidents. Summary of the Invention

[0003] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0004] In view of this, in a first aspect, the present invention proposes a lock structure for a cooking utensil, the cooking utensil including a lock hook, the lock structure including: a door hook for cooperating with the lock hook; a shell, a limiting portion being provided on the shell; a limiting member slidably connected to the shell, when the limiting member is in a first position, the limiting member is locked with the limiting portion, and the limiting member limits the door hook, and when the limiting member is in a second position, the limiting member releases the limit on the door hook; a driving assembly, when the driving assembly is energized, for driving the limiting member to move between the first position and the second position.

[0005] The lock structure provided by the present invention can be applied to cooking utensils and used as a child lock for the cooking utensils.

[0006] Specifically, the cooking appliance includes a door body assembly and a cavity assembly. When the door body assembly closes the cavity assembly, the door hook is locked with the lock hook on the cavity assembly. When the user applies a pulling force through the door body assembly, the door hook can move relative to the lock hook. When the door body and the lock hook are separated, the door body assembly opens the cavity assembly.

[0007] The housing can be assembled on the door body assembly, and a limiting portion is provided on the housing. The limiting member can slide relative to the housing. When the limiting member moves to the first position, the limiting member contacts the door hook. Moreover, the limiting member and the limiting portion are in a locked state. The limiting portion restricts the movement of the limiting member, thereby enabling the limiting member to limit the door hook. The door hook cannot move relative to the lock hook. The door body assembly and the cavity assembly are in a locked state, and the user cannot open the cavity assembly by pulling the door body assembly. When the limiting member is in the second position, the limiting portion releases the lock on the limiting member. Moreover, the limiting member and the door hook are separated. Therefore, the limiting member cannot limit the door hook. The door hook can move relative to the lock hook, and the user can complete the door opening action.

[0008] The drive assembly can drive the limiting member to operate. When the drive assembly is powered on, the drive assembly can drive the limiting member to move from the second position to the first position, or vice versa. When the drive assembly is not in use, the drive assembly is in a power-off state. When the cooking appliance needs to be locked, the drive assembly needs to be powered on so that the drive assembly drives the limiting member to move to the first position. When the cooking appliance needs to be unlocked, the drive assembly needs to be powered on so that the drive assembly drives the limiting member to move to the second position.

[0009] Before opening the cavity assembly, the user must first unlock the door by releasing the stopper from the door hook, and then open the cavity assembly. This two-step process improves the safety of the cooking appliance.

[0010] During or after cooking, the food inside the cooking cavity can be very hot. Opening the door to remove food directly presents a risk of burns. Therefore, the present invention utilizes the aforementioned stopper and door hook to ensure that, when a user wishes to open the cavity assembly, they must first unlock the cooking appliance. This serves as a reminder to the user and prevents children from accidentally opening the cavity assembly, significantly improving the safety of the cooking appliance.

[0011] Therefore, the lock structure proposed in the present invention cooperates with the limiter and the door hook to increase the difficulty of unlocking the lock structure, prevent users, especially children, from accidentally opening the cavity assembly, and improve the safety of cooking utensils using the lock structure.

[0012] In one possible application, an unlock button can be provided on the cooking appliance. The unlock button can be a physical button or a virtual button. When the user presses the unlock button, the drive assembly is powered on and moves the limiter. Alternatively, the user can control the power supply of the drive assembly through an app.

[0013] In one possible application, the lock structure also includes: a position sensor, which is electrically connected to the drive component. The position sensor is arranged on the wall component or the door component. The position sensor is used to detect the opening state of the door component. If the door component switches from the open state to the closed state, the drive component is powered on and drives the limit member to move to the first position, thereby realizing the automatic locking function.

[0014] In addition, the lock structure in the above technical solution provided by the present invention may also have the following additional technical features:

[0015] In the above technical solution, when the limiter is in the third position, under the driving action of the driving assembly, the limiter can rotate relative to the outer shell so that the limiter is locked with the limit portion or separated from the limit portion; the first position is between the second position and the third position.

[0016] In this technical solution, the limiting member can rotate relative to the housing in the third position, and the limiting member can be locked with or separated from the limiting portion by the rotation, thereby realizing the locking and unlocking functions.

[0017] Specifically, when locking is required, the drive assembly is powered on, and the drive assembly first drives the limiting member to move from the second position to the third position, then drives the limiting member to rotate in the third position, and then drives the limiting member to move to the first position. The rotated limiting member can be locked with the limiting portion. When unlocking is required, since the first position is between the second and third positions, it is necessary to first drive the limiting member to move to the third position, and then drive the limiting member to rotate, so that the limiting member will not be locked with the limiting portion during the movement of the limiting member to the second position.

[0018] The driving component's driving of the limiter includes two parts: one is to drive the limiter to move linearly, and the other is to drive the limiter to rotate. The repeated action of the driving component can realize the locking and unlocking functions, thereby improving the convenience of product implementation.

[0019] In any of the above technical solutions, the driving component is provided with multiple first inclined surfaces, the limiting member is provided with multiple second inclined surfaces, and the limiting portion is provided with multiple third inclined surfaces, and the inclination angles of the first inclined surfaces, the second inclined surfaces and the third inclined surfaces are the same; when the limiting member is in the first position, the first inclined surface is separated from the second inclined surface, and the first inclined surface is in contact with the third inclined surface. When the limiting member is in the third position, under the driving action of the driving component, the second inclined surface can slide relative to the first inclined surface. When the limiting member is in the second position, the first inclined surface is in contact with the second inclined surface, and the first inclined surface can push the second inclined surface.

[0020] In this technical solution, a plurality of first inclined surfaces are provided on the driving assembly, and the plurality of first inclined surfaces are distributed along the circumference of the driving shaft of the driving assembly; a plurality of second inclined surfaces are provided on the limiting member, and the plurality of second inclined surfaces are distributed along the circumference of the driving shaft; a plurality of third inclined surfaces are provided on the limiting member, and the plurality of third inclined surfaces are distributed along the circumference of the driving shaft.

[0021] When the cooking utensil needs to be locked, the driving assembly drives the limit member to move in the direction away from the second position. Specifically, the first inclined surface on the driving shaft pushes the second inclined surface on the limit member. When the limit member is pushed to the third position, the second inclined surface can rotate relative to the first inclined surface under the driving action of the driving assembly. When the driving shaft resets, the limit member moves toward the second position for a distance. Then, the second inclined surface on the limit member contacts the third inclined surface on the limiting part. The third inclined surface limits the second inclined surface, so that the limit member cannot move to the second position with the driving shaft. At this time, the limit member is limited in the first position, and the limit member can limit the door hook.

[0022] When the cooking utensil needs to be unlocked, the driving shaft moves in the direction close to the limit member. When the first inclined surface contacts the second inclined surface, the first inclined surface presses the second inclined surface. When the limit member moves to the third position, the second inclined surface rotates again relative to the first inclined surface under the driving action of the driving assembly. When the driving shaft resets and moves, the limit member can move to the second position together with the driving shaft. At this time, the limit member releases the limit on the door hook.

[0023] By arranging inclined surfaces on the driving assembly, the limiting member and the limiting portion to cooperate with each other, the limiting member can be limited and released, and the limiting stability of the door hook can be improved.

[0024] It should be noted that when the first inclined surface pushes the second inclined surface once, the limiting member will rotate a certain amount, so the first inclined surface contacts different second inclined surfaces when pushed by the adjacent two sides.

[0025] In any of the above technical solutions, the driving assembly includes: a driving member, used to drive the limiting member to move in a direction away from the second position; an elastic member, connected to the limiting member, the elastic member can push the limiting member to move, when the limiting member is in the first position and the third position, the elastic member is in an elastic deformation state, and when the limiting member is in the second position, the elastic member is in its original state.

[0026] In this technical solution, the driving member can drive the limiting member to move in a direction away from the second position, and the elastic member can drive the limiting member to move in a direction close to the second position.

[0027] Specifically, when the cooking appliance needs to be locked, the driving member is energized, pushing the limiting member to the third position. The elastic member is deformed, causing the elastic member to tend to push the elastic member toward the second position. Under the elastic force of the elastic member, the second inclined surface slides relative to the first inclined surface, causing the limiting member to rotate relative to the driving member. When the driving member is reset, the elastic member pushes the limiting member to the first position, locking the limiting member with the limiting portion. When the limiting member is in the first position, the elastic member is in an elastically deformed state, so that the elastic member can press the limiting member against the limiting portion, allowing the limiting member to remain stably in the first position, thereby stably limiting the door hook.

[0028] To unlock the cooking appliance, the driver is energized, causing it to move a certain distance before contacting the stopper. The driver then drives the stopper away from the first position. When the stopper reaches the third position, the elastic force of the elastic member causes the second inclined surface to move relative to the first inclined surface, causing the stopper to rotate again. When the driver is reset, the stopper can move with the driver to the second position. Thus, after one rotation of the stopper, the stopper can be locked with the stopper. Another rotation releases the stopper from the stopper.

[0029] In a possible application, the elastic member is sleeved on the limiting member, a first end of the elastic member is connected to the limiting member, and a second end of the elastic member is connected to the door assembly.

[0030] In any of the above technical solutions, the driving part includes: an electromagnet, a driving shaft, which is slidably connected to the electromagnet. When the electromagnet is energized, the electromagnet is used to drive the driving shaft to move; a reset spring, which is connected to the electromagnet and the driving shaft, and the reset spring is used to drive the driving shaft to move and reset.

[0031] In this technical solution, when the electromagnet is energized, it generates a magnetic force that pushes the drive shaft to move, allowing the drive shaft to push the stopper. After the electromagnet pushes the drive shaft, the return spring is elastically deformed. When the electromagnet is de-energized, the return spring pulls the drive shaft, causing it to move and return to its original position.

[0032] In any of the above technical solutions, a first guide groove is provided on the limiting member. When the limiting member is in the second position, the limiting portion is located in the first guide groove. When the limiting member is in the first position and the third position, the limiting portion extends out of the first guide groove.

[0033] In this technical solution, a guide portion is provided on the housing to guide the position-limiting member. When the position-limiting member moves from the first position to the third position, the guide portion prevents the position-limiting member from rotating. However, when the position-limiting member moves to the third position, the guide portion extends out of the first guide slot, and the elastic member pushes the position-limiting member to rotate. The guide portion guides the position-limiting member, preventing it from rotating before reaching the third position, thereby improving the coordination stability among the drive assembly, the position-limiting member, and the position-limiting member.

[0034] In a possible application, a second guide groove is provided on the driving shaft, and the guide portion is located in the second guide groove. The guide portion also guides the second guide groove, so that the driving shaft does not rotate.

[0035] In a possible application, a slot is provided on the limiting member, and the second inclined surface is a side wall of the slot. When the limiting member is located at the first position, the limiting portion is embedded in the slot.

[0036] In the second aspect, the present invention proposes a cooking utensil, comprising: a lock structure as in any of the above-mentioned technical solutions; a cavity assembly, a lock hook is provided on the cavity assembly, and the lock structure is arranged on the cavity assembly; a door body assembly, the door hook is arranged on the door body assembly; an unlocking button is arranged on the door body assembly, and the unlocking button is electrically connected to the driving assembly.

[0037] When the door body assembly closes the cavity assembly, the door hook is locked with the lock hook on the cavity assembly. When the user applies a pulling force through the door body assembly, the door hook can move relative to the lock hook. When the door body and the lock hook are separated, the door body assembly opens the cavity assembly.

[0038] The housing can be assembled on the door body assembly, and a limiting portion is provided on the housing. The limiting member can slide relative to the housing. When the limiting member moves to the first position, the limiting member contacts the door hook. Moreover, the limiting member and the limiting portion are in a locked state. The limiting portion restricts the movement of the limiting member, thereby enabling the limiting member to limit the door hook. The door hook cannot move relative to the lock hook. The door body assembly and the cavity assembly are in a locked state, and the user cannot open the cavity assembly by pulling the door body assembly. When the limiting member is in the second position, the limiting portion releases the lock on the limiting member. Moreover, the limiting member and the door hook are separated. Therefore, the limiting member cannot limit the door hook. The door hook can move relative to the lock hook, and the user can complete the door opening action.

[0039] The drive assembly can drive the limiting member to operate. When the drive assembly is powered on, the drive assembly can drive the limiting member to move from the second position to the first position, or vice versa. When the drive assembly is not in use, the drive assembly is in a power-off state. When the cooking appliance needs to be locked, the drive assembly needs to be powered on so that the drive assembly drives the limiting member to move to the first position. When the cooking appliance needs to be unlocked, the drive assembly needs to be powered on so that the drive assembly drives the limiting member to move to the second position.

[0040] Before opening the cavity assembly, the user must first unlock the door by releasing the stopper from the door hook, and then open the cavity assembly. This two-step process improves the safety of the cooking appliance.

[0041] During or after cooking, the food inside the cooking cavity can be very hot. Opening the door to remove food directly presents a risk of burns. Therefore, the present invention utilizes the aforementioned stopper and door hook to ensure that, when a user wishes to open the cavity assembly, they must first unlock the cooking appliance. This serves as a reminder to the user and prevents children from accidentally opening the cavity assembly, significantly improving the safety of the cooking appliance.

[0042] Therefore, the lock structure proposed in the present invention cooperates with the limiter and the door hook to increase the difficulty of unlocking the lock structure, prevent users, especially children, from accidentally opening the cavity assembly, and improve the safety of cooking utensils using the lock structure.

[0043] In one possible application, the unlock button can be a physical button or a virtual button. When the user presses the unlock button, the drive component is powered on and drives the limiter to move. Alternatively, the user can control the power supply of the drive component through an app.

[0044] In a third aspect, the present invention proposes a control method for a cooking appliance, which is used for a cooking appliance such as the above-mentioned technical solution. The control method for the cooking appliance includes: when the cooking appliance is powered on, collecting the opening and closing status of the door assembly; when the door assembly is in a closed state, energizing the driving assembly so that the driving assembly drives the limit member to move to a first position; when the door assembly is in a closed state and receives an unlocking command, energizing the driving assembly so that the driving assembly drives the limit member to move to a second position; when the limit member is in the first position, the limit member restricts the movement of the door hook, and when the limit member is in the second position, the limit member releases the limit on the door hook.

[0045] When the door body assembly closes the cavity assembly, the door hook is locked with the lock hook on the cavity assembly. When the user applies a pulling force through the door body assembly, the door hook can move relative to the lock hook. When the door body and the lock hook are separated, the door body assembly opens the cavity assembly.

[0046] The driving assembly can drive the limit member to operate. When the door body assembly is in a closed state, the driving assembly is energized, and the driving assembly can drive the limit member to move from the second position to the first position. The limit member contacts the door hook, and at this time, the limit member and the limit part are in a locked state. The limit part restricts the movement of the limit member, so that the limit member can limit the door hook, and the door hook cannot operate relative to the lock hook. The door body assembly and the cavity assembly are in a locked state, and the user cannot open the cavity assembly by pulling the door body assembly.

[0047] When receiving the unlocking command, the driving component also needs to be energized so that the driving component drives the limit member to move to the second position, and the limit part releases the lock on the limit member. Moreover, at this time, the limit member is separated from the door hook, so that the limit member cannot limit the door hook. The door hook can move relative to the lock hook, and the user can complete the door opening action.

[0048] Before opening the cavity assembly, the user must first unlock the door by releasing the stopper from the door hook, and then open the cavity assembly. This two-step process improves the safety of the cooking appliance.

[0049] During or after cooking, the food inside the cooking cavity can be very hot. Opening the door to remove food directly presents a risk of burns. Therefore, the present invention utilizes the aforementioned stopper and door hook to ensure that, when a user wishes to open the cavity assembly, they must first unlock the cooking appliance. This serves as a reminder to the user and prevents children from accidentally opening the cavity assembly, significantly improving the safety of the cooking appliance.

[0050] Therefore, the lock structure proposed in the present invention cooperates with the limiter and the door hook to increase the difficulty of unlocking the lock structure, prevent users, especially children, from accidentally opening the cavity assembly, and improve the safety of cooking utensils using the lock structure.

[0051] In the above technical solution, when an unlocking command is received, the control method also includes: when the time after receiving the unlocking command reaches a set time, based on the door body assembly being in a closed state, the driving assembly is energized so that the driving assembly drives the limit member to move to the first position.

[0052] In this technical solution, upon receiving an unlock command, the drive assembly is energized and drives the limiter to the second position, at which point the limiter releases the lock on the door hook. A timer begins when the unlock command is received. If the door assembly remains closed after the set timer expires, this may indicate an accidental touch. For safety reasons, if the user does not open the door for an extended period, the limiter switches to the first position, thereby retaining the lock on the door hook. The user must then input an unlock command on the cooking appliance again to open the door. This approach ensures that the cooking appliance can be locked promptly in the event of an accidental release of the child lock, further preventing children from accidentally opening the cooking appliance.

[0053] In any of the above technical solutions, when the cooking appliance is powered on, the control method further includes: when receiving an instruction to turn off the child lock, powering on the driving component so that the driving component drives the limiting member to move to the second position.

[0054] In this technical solution, the user can actively turn off the child lock. For example, if the user has different usage requirements, the user can turn off the child lock function. At this time, even if the door assembly is in a closed state, the lock structure will not lock the cooking appliance through the child lock function.

[0055] Specifically, when a command to close the child lock is received, the drive component is powered on, and the drive component drives the limit member to move to the second position. In this case, the user can open the cavity component simply by pulling the door component, thereby meeting the user's usage needs in different usage scenarios and improving the functional diversity of the cooking appliance.

[0056] In any of the above technical solutions, when the cooking appliance is powered on, the control method also includes: collecting the input voltage of the cooking appliance; when the input voltage is less than a preset value, obtaining the position of the limit member; based on the limit member being in the first position, energizing the drive component so that the drive component drives the limit member to move to the second position.

[0057] In this technical solution, when the cooking appliance is powered on, the input voltage of the cooking appliance needs to be collected at any time. If the input voltage of the cooking appliance is less than a preset value, it means that the cooking appliance has a power outage. At this time, the limiter needs to be moved to the second position.

[0058] Specifically, if the cooking appliance loses power, the input voltage will be less than a preset value, which may be a value set by the manufacturer and is typically set to a relatively low value to accurately determine whether the cooking appliance has lost power. In the event of a power outage, the position of the retaining member must be determined. If the retaining member is in the second position, no unlocking operation is required. If the retaining member is in the first position, the drive assembly must be energized to drive the retaining member to the second position, thereby preventing the cavity assembly from being unable to open when the cooking appliance loses power.

[0059] In a possible application, at the moment when the cooking appliance loses power, a pulse voltage may be provided to the driving component through the capacitor to power on the driving component.

[0060] In a fourth aspect, the present invention proposes a control device for a cooking appliance, which is used for a cooking appliance such as the one in the above-mentioned technical solution. The control device for the cooking appliance includes: a collection module, which is used to collect the opening and closing status of the door assembly when the cooking appliance is powered on; a power-on module, which energizes the drive assembly when the door assembly is in a closed state, so that the drive assembly drives the limit member to move to a first position; the power-on module is also used to: when the door assembly is in a closed state and receives an unlocking command, energize the drive assembly so that the drive assembly drives the limit member to move to a second position; when the limit member is in the first position, the limit member restricts the movement of the door hook, and when the limit member is in the second position, the limit member releases the limit on the door hook.

[0061] When the door body assembly closes the cavity assembly, the door hook is locked with the lock hook on the cavity assembly. When the user applies a pulling force through the door body assembly, the door hook can move relative to the lock hook. When the door body and the lock hook are separated, the door body assembly opens the cavity assembly.

[0062] The driving assembly can drive the limit member to operate. When the door body assembly is in a closed state, the driving assembly is energized, and the driving assembly can drive the limit member to move from the second position to the first position. The limit member contacts the door hook, and at this time, the limit member and the limit part are in a locked state. The limit part restricts the movement of the limit member, so that the limit member can limit the door hook, and the door hook cannot operate relative to the lock hook. The door body assembly and the cavity assembly are in a locked state, and the user cannot open the cavity assembly by pulling the door body assembly.

[0063] When receiving the unlocking command, the driving component also needs to be energized so that the driving component drives the limit member to move to the second position, and the limit part releases the lock on the limit member. Moreover, at this time, the limit member is separated from the door hook, so that the limit member cannot limit the door hook. The door hook can move relative to the lock hook, and the user can complete the door opening action.

[0064] Before opening the cavity assembly, the user must first unlock the door by releasing the stopper from the door hook, and then open the cavity assembly. This two-step process improves the safety of the cooking appliance.

[0065] During or after cooking, the food inside the cooking cavity can be very hot. Opening the door to remove food directly presents a risk of burns. Therefore, the present invention utilizes the aforementioned stopper and door hook to ensure that, when a user wishes to open the cavity assembly, they must first unlock the cooking appliance. This serves as a reminder to the user and prevents children from accidentally opening the cavity assembly, significantly improving the safety of the cooking appliance.

[0066] Therefore, the lock structure proposed in the present invention cooperates with the limiter and the door hook to increase the difficulty of unlocking the lock structure, prevent users, especially children, from accidentally opening the cavity assembly, and improve the safety of cooking utensils using the lock structure.

[0067] In the above technical solution, when an unlocking command is received, the power-on module is also used to: when the time after receiving the unlocking command reaches a set time, based on the door body assembly being in a closed state, energize the drive assembly so that the drive assembly drives the limit member to move to the first position.

[0068] In this technical solution, upon receiving an unlock command, the drive assembly is energized and drives the limiter to the second position, at which point the limiter releases the lock on the door hook. A timer begins when the unlock command is received. If the door assembly remains closed after the set timer expires, this may indicate an accidental touch. For safety reasons, if the user does not open the door for an extended period, the limiter switches to the first position, thereby retaining the lock on the door hook. The user must then input an unlock command on the cooking appliance again to open the door. This approach ensures that the cooking appliance can be locked promptly in the event of an accidental release of the child lock, further preventing children from accidentally opening the cooking appliance.

[0069] In any of the above technical solutions, when the cooking appliance is powered on, the power module is further used to: upon receiving an instruction to close the child lock, power the drive assembly so that the drive assembly drives the limit member to move to the second position.

[0070] In this technical solution, the user can actively turn off the child lock. For example, if the user has different usage requirements, the user can turn off the child lock function. At this time, even if the door assembly is in a closed state, the lock structure will not lock the cooking appliance through the child lock function.

[0071] Specifically, when a command to close the child lock is received, the drive component is powered on, and the drive component drives the limit member to move to the second position. In this case, the user can open the cavity component simply by pulling the door component, thereby meeting the user's usage needs in different usage scenarios and improving the functional diversity of the cooking appliance.

[0072] In any of the above technical solutions, when the cooking appliance is powered on, the acquisition module is also used to: collect the input voltage of the cooking appliance; the control device also includes: an acquisition module, when the input voltage is less than a preset value, the acquisition module acquires the position of the limit member; the power-on module is also used to: based on the limit member being in the first position, power the drive component so that the drive component drives the limit member to move to the second position.

[0073] In this technical solution, when the cooking appliance is powered on, the input voltage of the cooking appliance needs to be collected at any time. If the input voltage of the cooking appliance is less than a preset value, it means that the cooking appliance has a power outage. At this time, the limiter needs to be moved to the second position.

[0074] Specifically, if the cooking appliance loses power, the input voltage will be less than a preset value, which may be a value set by the manufacturer and is typically set to a relatively low value to accurately determine whether the cooking appliance has lost power. In the event of a power outage, the position of the retaining member must be determined. If the retaining member is in the second position, no unlocking operation is required. If the retaining member is in the first position, the drive assembly must be energized to drive the retaining member to the second position, thereby preventing the cavity assembly from being unable to open when the cooking appliance loses power.

[0075] In a possible application, at the moment when the cooking appliance loses power, a pulse voltage may be provided to the driving component through the capacitor to power on the driving component.

[0076] In the fifth aspect, the present invention proposes a control device for a cooking appliance, comprising: a processor and a memory, wherein the memory stores programs or instructions, and when the processor executes the programs or instructions in the memory, it implements the steps of the control method in any technical solution of the third aspect, and can achieve the same technical effect, which will not be repeated here.

[0077] In the sixth aspect, the present invention proposes a readable storage medium, which stores programs or instructions. When the programs or instructions are executed by the processor, the steps of the control method in any technical solution of the third aspect are implemented, and the same technical effects can be achieved, which will not be repeated here.

[0078] In the seventh aspect, the present invention proposes a cooking appliance comprising: a control device as in the fourth and fifth aspects; and / or a readable storage medium as in the sixth aspect, and can achieve the same technical effects, which will not be repeated here.

[0079] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0081] Figure 1 An exploded view of a lock structure in an embodiment of the present invention is shown;

[0082] Figure 2 A schematic structural diagram of a driving member in an embodiment of the present invention is shown;

[0083] Figure 3 A schematic structural diagram of a position limiting member in an embodiment of the present invention is shown;

[0084] Figure 4 It shows a schematic structural diagram of a cooking appliance in a locked state according to an embodiment of the present invention;

[0085] Figure 5 Shown Figure 4 Enlarged view of point A in the middle;

[0086] Figure 6 It shows a schematic structural diagram of a cooking appliance in an unlocked state according to an embodiment of the present invention;

[0087] Figure 7 Shown Figure 6 Enlarged view of point B in the middle;

[0088] Figure 8 One of the flow charts of the method for controlling a cooking appliance according to an embodiment of the present invention is shown;

[0089] Figure 9 A second flowchart of a method for controlling a cooking appliance according to an embodiment of the present invention is shown;

[0090] Figure 10 One of the schematic block diagrams of a control device for a cooking appliance according to an embodiment of the present invention is shown;

[0091] Figure 11 The second schematic block diagram shows the control device of the cooking appliance in the embodiment of the present invention.

[0092] in, Figures 1 to 7 The corresponding relationship between the reference numerals and component names is as follows:

[0093] 110 door hook, 120 housing, 121 limiting part, 122 third inclined surface, 130 limiting member, 131 second inclined surface, 132 first guide groove, 140 driving assembly, 141 first inclined surface, 142 driving member, 143 elastic member, 144 electromagnet, 145 driving shaft, 146 return spring, 147 second guide groove, 150 cavity assembly, 160 position sensor. DETAILED DESCRIPTION

[0094] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0095] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0096] Refer to the following Figures 1 to 11 A lock structure, a cooking appliance, a method for controlling a cooking appliance, a control device for a cooking appliance, and a readable storage medium according to some embodiments of the present invention are described.

[0097] Combine Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, in an embodiment of the present invention, a lock structure is provided, which includes: a door hook 110, a housing 120, a limiting member 130, and a driving assembly 140. The door hook 110 is used to cooperate with a lock hook in a cooking appliance. The housing 120 is provided with a limiting portion 121. The limiting member 130 is slidably connected to the housing 120. When the limiting member 130 is in a first position, the limiting member 130 is locked with the limiting portion 121, thereby limiting the door hook 110. When the limiting member 130 is in a second position, the limiting member 130 releases the limit on the door hook 110. When the driving assembly 140 is energized, it is used to drive the limiting member 130 to move between the first position and the second position.

[0098] The lock structure provided in this embodiment can be applied to cooking utensils and used as a child lock for cooking utensils.

[0099] Specifically, the cooking appliance includes a door body assembly and a cavity assembly 150. When the door body assembly closes the cavity assembly 150, the door hook 110 is locked with the lock hook on the cavity assembly 150. When the user applies a pulling force through the door body assembly, the door hook 110 can move relative to the lock hook. When the door body and the lock hook are separated, the door body assembly opens the cavity assembly 150.

[0100] The outer shell 120 can be assembled on the door body assembly, and a limiting portion 121 is provided on the outer shell 120. The limiting member 130 can slide relative to the outer shell 120. When the limiting member 130 moves to the first position, the limiting member 130 contacts the door hook 110. Moreover, at this time, the limiting member 130 and the limiting portion 121 are in a locked state. The limiting portion 121 limits the movement of the limiting member 130, so that the limiting member 130 can limit the door hook 110, and the door hook 110 cannot run relative to the lock hook. The door body assembly and the cavity assembly 150 are in a locked state, and the user cannot open the cavity assembly 150 by pulling the door body assembly. When the limit member 130 is in the second position, the limit portion 121 releases the lock on the limit member 130. At this time, the limit member 130 is separated from the door hook 110, so that the limit member 130 cannot limit the door hook 110. The door hook 110 can move relative to the lock hook, and the user can complete the door opening action.

[0101] The first position is a locked position, and the second position is an unlocked position.

[0102] The drive assembly 140 can drive the limiting member 130 to operate. When the drive assembly 140 is powered on, the drive assembly 140 can drive the limiting member 130 to move from the second position to the first position, or drive the limiting member 130 to move from the second position to the first position. When the drive assembly 140 is not in use, the drive assembly 140 is in a power-off state. When the cooking appliance needs to be locked, the drive assembly 140 needs to be powered on so that the drive assembly 140 drives the limiting member 130 to move to the first position. When the cooking appliance needs to be unlocked, the drive assembly 140 needs to be powered on so that the drive assembly 140 drives the limiting member 130 to move to the second position.

[0103] Before opening the cavity assembly 150, the user needs to first perform an unlocking operation to release the limit of the door hook 110 by the limiter 130, and then open the cavity assembly 150. Opening the cavity assembly 150 requires two steps, which is beneficial to improving the safety of the cooking appliance.

[0104] During or after cooking, the food in the cooking cavity of the cooking appliance is at a high temperature. Opening the door to remove food directly at this time presents a risk of burns. Therefore, the present invention utilizes the aforementioned stopper 130 and door hook 110 to ensure that, if a user wishes to open the cavity assembly 150, they must first unlock the cooking appliance before doing so. This serves as a reminder to the user and prevents children from accidentally opening the cavity assembly 150, significantly improving the safety of the cooking appliance.

[0105] Therefore, the lock structure proposed in the present invention cooperates with the limiter 130 and the door hook 110 to increase the difficulty of unlocking the lock structure, prevent users, especially children, from accidentally opening the cavity assembly 150, and improve the safety of cooking utensils using the lock structure.

[0106] In one possible application, an unlock button can be provided on the cooking appliance. The unlock button can be a physical button or a virtual button. When the user presses the unlock button, the drive assembly 140 is powered on and drives the limit member 130 to move. Alternatively, the user can control the power supply of the drive assembly 140 through an app.

[0107] Combine Figure 5 and Figure 7 As shown, in a possible application, the lock structure also includes: a position sensor 160, the position sensor 160 is electrically connected to the drive component 140, the position sensor 160 is arranged on the wall component or the door component, and the position sensor 160 is used to detect the opening state of the door component. If the door component switches from the open state to the closed state, the drive component 140 is powered on and drives the limit member 130 to move to the first position, thereby realizing the automatic locking function.

[0108] Combine Figure 5 and Figure 7 As shown, in the above embodiment, when the limit member 130 is in the third position, under the driving action of the driving assembly 140, the limit member 130 can rotate relative to the housing 120 so that the limit member 130 is locked with the limit portion 121 or separated from the limit portion 121, and the first position is between the second position and the third position.

[0109] In this embodiment, the limiting member 130 can rotate relative to the housing 120 in the third position. The limiting member 130 can be locked with or separated from the limiting portion 121 by the rotation, thereby achieving the locking and unlocking functions.

[0110] Specifically, when locking is required, the driving assembly 140 is powered on, and the driving assembly 140 first drives the limiting member 130 to move from the second position to the third position, then drives the limiting member 130 to rotate in the third position, and then drives the limiting member 130 to move to the first position. After the rotation, the limiting member 130 can be locked with the limiting portion 121. When unlocking is required, since the first position is between the second position and the third position, it is necessary to first drive the limiting member 130 to move to the third position, and then drive the limiting member 130 to rotate, so that the limiting member 130 will not be locked with the limiting portion 121 during the movement of the limiting member 130 to the second position.

[0111] The driving component 140 drives the limiter 130 in two parts: one is to drive the limiter 130 to move linearly, and the other is to drive the limiter 130 to rotate. The driving component 140 repeats the action to realize the locking and unlocking functions, thereby improving the convenience of the product.

[0112] Combine Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 7 As shown, in any of the above embodiments, the driving assembly 140 is provided with a plurality of first inclined surfaces 141, the limiting member 130 is provided with a plurality of second inclined surfaces 131, and the limiting portion 121 is provided with a plurality of third inclined surfaces 122. The first inclined surfaces 141, the second inclined surfaces 131, and the third inclined surfaces 122 have the same inclination angle. When the limiting member 130 is in the first position, the first inclined surfaces 141 are separated from the second inclined surfaces 131, and the first inclined surfaces 141 are in contact with the third inclined surfaces 122. When the limiting member 130 is in the third position, the second inclined surfaces 131 can slide relative to the first inclined surfaces 141 under the driving action of the driving assembly 140. When the limiting member 130 is in the second position, the first inclined surfaces 141 are in contact with the second inclined surfaces 131, and the first inclined surfaces 141 can push the second inclined surfaces 131.

[0113] In this embodiment, a plurality of first inclined surfaces 141 are provided on the driving assembly 140, and the plurality of first inclined surfaces 141 are distributed along the circumference of the driving shaft 145 of the driving assembly 140; a plurality of second inclined surfaces 131 are provided on the limiting member 130, and the plurality of second inclined surfaces 131 are distributed along the circumference of the driving shaft 145; a plurality of third inclined surfaces 122 are provided on the limiting portion 121, and the plurality of third inclined surfaces 122 are distributed along the circumference of the driving shaft 145.

[0114] When the cooking appliance needs to be locked, the driving assembly 140 drives the limit member 130 to move in the direction away from the second position. Specifically, the first inclined surface 141 on the driving shaft 145 pushes the second inclined surface 131 on the limit member 130. When the limit member 130 is pushed to the third position, under the driving action of the driving assembly 140, the second inclined surface 131 can rotate relative to the first inclined surface 141. When the driving shaft 145 is reset, the limit member 130 moves toward the second position for a distance. Then, the second inclined surface 131 on the limit member 130 contacts the third inclined surface 122 on the limiting portion 121. The third inclined surface 122 limits the second inclined surface 131, so that the limit member 130 cannot move to the second position with the driving shaft 145. At this time, the limit member 130 is limited in the first position, and the limit member 130 can limit the door hook 110.

[0115] When the cooking utensil needs to be unlocked, the drive shaft 145 moves toward the direction close to the limit member 130. When the first inclined surface 141 contacts the second inclined surface 131, the first inclined surface 141 presses the second inclined surface 131. When the limit member 130 moves to the third position, under the driving action of the drive assembly 140, the second inclined surface 131 rotates again relative to the first inclined surface 141. When the drive shaft 145 resets and moves, the limit member 130 can move to the second position together with the drive shaft 145. At this time, the limit member 130 releases the limit on the door hook 110.

[0116] By arranging inclined surfaces on the driving assembly 140 , the limiting member 130 and the limiting portion 121 to cooperate with each other, the limiting member 130 can be limited and released, and the limiting stability of the door hook 110 can be improved.

[0117] It should be noted that when the first inclined surface 141 pushes the second inclined surface 131 once, the limiting member 130 rotates a certain amount. Therefore, the first inclined surface 141 contacts different second inclined surfaces 131 when pushed by the adjacent two sides.

[0118] Combine Figure 1 、 Figure 2 and Figure 3 As shown, in any of the above embodiments, the driving assembly 140 includes: a driving member 142 and an elastic member 143, the driving member 142 is used to drive the limiting member 130 to move in a direction away from the second position, the elastic member 143 is connected to the limiting member 130, and the elastic member 143 can push the limiting member 130 to move, when the limiting member 130 is in the first position and the third position, the elastic member 143 is in an elastic deformation state, and when the limiting member 130 is in the second position, the elastic member 143 is in its original state.

[0119] In this embodiment, the driving member 142 can drive the limiting member 130 to move in a direction away from the second position, and the elastic member 143 can drive the limiting member 130 to move in a direction close to the second position.

[0120] Specifically, when the cooking appliance needs to be locked, the driving member 142 is energized, pushing the limiting member 130 to the third position. The elastic member 143 is deformed, and thus tends to push the elastic member 143 toward the second position. Under the elastic force of the elastic member 143, the second inclined surface 131 slides relative to the first inclined surface 141, causing the limiting member 130 to rotate relative to the driving member 142. When the driving member 142 is reset, the elastic member 143 pushes the limiting member 130 to the first position, where it locks with the limiting portion 121. When the limiting member 130 is in the first position, the elastic member 143 is in an elastically deformed state, so that the elastic member 143 can press the limiting member 130 against the limiting portion 121, allowing the limiting member 130 to remain stably in the first position, thereby stably limiting the door hook 110.

[0121] When the cooking appliance needs to be unlocked, the driving member 142 is energized. The driving member 142 moves a certain distance before contacting the stopper 130. The driving member 142 drives the stopper 130 away from the first position. When the stopper 130 moves to the third position, the elastic force of the elastic member 143 causes the second inclined surface 131 to move relative to the first inclined surface 141 again, causing the stopper 130 to rotate again. When the driving member 142 is reset, the stopper 130 can move to the second position along with the driving member 142. Therefore, after one rotation of the stopper 130, the stopper 130 can be locked with the stopper 121. After another rotation of the stopper 130, the stopper 130 can be released from the stopper 121.

[0122] In a possible application, the elastic member 143 is sleeved on the limiting member 130 , a first end of the elastic member 143 is connected to the limiting member 130 , and a second end of the elastic member 143 is connected to the door assembly.

[0123] Combine Figure 1 、 Figure 2 、 Figure 5 and Figure 7 As shown, in any of the above embodiments, the driving member 142 includes an electromagnet 144, a driving shaft 145, and a return spring 146. The driving shaft 145 is slidably connected to the electromagnet 144. When the electromagnet 144 is energized, the electromagnet 144 is used to drive the driving shaft 145 to move. The return spring 146 is connected to the electromagnet 144 and the driving shaft 145, and is used to drive the driving shaft 145 to move and return.

[0124] In this embodiment, when the electromagnet 144 is energized, the electromagnet 144 generates a magnetic force, which pushes the drive shaft 145 to move, so that the drive shaft 145 can push the limiter 130. After the electromagnet 144 pushes the drive shaft 145, the return spring 146 is in an elastically deformed state. When the electromagnet 144 is de-energized, the return spring 146 can pull the drive shaft 145, and the return spring 146 drives the drive shaft 145 to move and return to its original position.

[0125] Combine Figure 1 、 Figure 2 and Figure 3 As shown, in any of the above embodiments, a first guide groove 132 is provided on the limiting member 130. When the limiting member 130 is in the second position, the limiting portion 121 is located in the first guide groove 132. When the limiting member 130 is in the first position and the third position, the limiting portion 121 extends out of the first guide groove 132.

[0126] In this embodiment, a guide portion is provided on the housing 120 to guide the limiting member 130. When the limiting member 130 moves from the first position to the third position, the limiting member 130 does not rotate under the guidance of the guide portion. However, when the limiting member 130 moves to the third position, the guide portion extends out of the first guide slot 132, and the limiting member 130 can rotate under the pushing action of the elastic member 143. The guiding of the limiting member 130 by the guide portion prevents the limiting member 130 from rotating before reaching the third position, which helps to improve the coordination stability among the drive assembly 140, the limiting member 130, and the limiting portion 121.

[0127] In a possible application, a second guide groove 147 is provided on the driving shaft 145 , and the guide portion is located in the second guide groove 147 . The guide portion also guides the second guide groove 147 , so that the driving shaft 145 does not rotate.

[0128] In a possible application, a slot is provided on the limiting member 130 , and the second inclined surface 131 is a side wall of the slot. When the limiting member 130 is located at the first position, the limiting portion 121 is embedded in the slot.

[0129] In an embodiment of the present invention, a cooking appliance is provided, comprising: a lock structure as described in any of the above embodiments, a cavity assembly 150, a door assembly, and an unlocking button. A lock hook is provided on the cavity assembly 150, the lock structure is provided on the cavity assembly 150, the door hook 110 is provided on the door assembly, and the unlocking button is provided on the door assembly, electrically connected to the drive assembly 140.

[0130] When the door body assembly closes the cavity assembly 150, the door hook 110 is locked with the lock hook on the cavity assembly 150. When the user applies a pulling force through the door body assembly, the door hook 110 can move relative to the lock hook. When the door body and the lock hook are separated, the door body assembly opens the cavity assembly 150.

[0131] The outer shell 120 can be assembled on the door body assembly, and a limiting portion 121 is provided on the outer shell 120. The limiting member 130 can slide relative to the outer shell 120. When the limiting member 130 moves to the first position, the limiting member 130 contacts the door hook 110. Moreover, at this time, the limiting member 130 and the limiting portion 121 are in a locked state. The limiting portion 121 limits the movement of the limiting member 130, so that the limiting member 130 can limit the door hook 110, and the door hook 110 cannot run relative to the lock hook. The door body assembly and the cavity assembly 150 are in a locked state, and the user cannot open the cavity assembly 150 by pulling the door body assembly. When the limit member 130 is in the second position, the limit portion 121 releases the lock on the limit member 130. At this time, the limit member 130 is separated from the door hook 110, so that the limit member 130 cannot limit the door hook 110. The door hook 110 can move relative to the lock hook, and the user can complete the door opening action.

[0132] The drive assembly 140 can drive the limiting member 130 to operate. When the drive assembly 140 is powered on, the drive assembly 140 can drive the limiting member 130 to move from the second position to the first position, or drive the limiting member 130 to move from the second position to the first position. When the drive assembly 140 is not in use, the drive assembly 140 is in a power-off state. When the cooking appliance needs to be locked, the drive assembly 140 needs to be powered on so that the drive assembly 140 drives the limiting member 130 to move to the first position. When the cooking appliance needs to be unlocked, the drive assembly 140 needs to be powered on so that the drive assembly 140 drives the limiting member 130 to move to the second position.

[0133] Before opening the cavity assembly 150, the user needs to first perform an unlocking operation to release the limit of the door hook 110 by the limiter 130, and then open the cavity assembly 150. Opening the cavity assembly 150 requires two steps, which is beneficial to improving the safety of the cooking appliance.

[0134] During or after cooking, the food in the cooking cavity of the cooking appliance is at a high temperature. Opening the door to remove food directly at this time presents a risk of burns. Therefore, the present invention utilizes the aforementioned stopper 130 and door hook 110 to ensure that, if a user wishes to open the cavity assembly 150, they must first unlock the cooking appliance before doing so. This serves as a reminder to the user and prevents children from accidentally opening the cavity assembly 150, significantly improving the safety of the cooking appliance.

[0135] Therefore, the lock structure proposed in the present invention cooperates with the limiter 130 and the door hook 110 to increase the difficulty of unlocking the lock structure, prevent users, especially children, from accidentally opening the cavity assembly 150, and improve the safety of cooking utensils using the lock structure.

[0136] In one possible application, the unlock button can be a physical button or a virtual button. After the user presses the unlock button, the driving component 140 is powered on and drives the limiter 130 to move. Alternatively, the user can control the driving component 140 to be powered on through an APP.

[0137] In an embodiment of the present invention, a method for controlling a cooking appliance is provided, which is used for the cooking appliance in the above embodiment.

[0138] like Figure 8 As shown, the control method of the cooking appliance includes:

[0139] Step 202: When the cooking appliance is powered on, the opening and closing status of the door assembly is collected;

[0140] Step 204: Based on the door assembly being in the closed state, energize the driving assembly so that the driving assembly drives the limiting member to move to the first position;

[0141] Step 206: When the door assembly is in a closed state and an unlocking instruction is received, the driving assembly is energized so that the driving assembly drives the limiting member to move to the second position.

[0142] When the limiting member is in the first position, the limiting member limits the movement of the door hook. When the limiting member is in the second position, the limiting member releases the restriction on the door hook.

[0143] When the door body assembly closes the cavity assembly, the door hook is locked with the lock hook on the cavity assembly. When the user applies a pulling force through the door body assembly, the door hook can move relative to the lock hook. When the door body and the lock hook are separated, the door body assembly opens the cavity assembly.

[0144] The driving assembly can drive the limit member to operate. When the door body assembly is in a closed state, the driving assembly is energized, and the driving assembly can drive the limit member to move from the second position to the first position. The limit member contacts the door hook, and at this time, the limit member and the limit part are in a locked state. The limit part restricts the movement of the limit member, so that the limit member can limit the door hook, and the door hook cannot operate relative to the lock hook. The door body assembly and the cavity assembly are in a locked state, and the user cannot open the cavity assembly by pulling the door body assembly.

[0145] When receiving the unlocking command, the driving component also needs to be energized so that the driving component drives the limit member to move to the second position, and the limit part releases the lock on the limit member. Moreover, at this time, the limit member is separated from the door hook, so that the limit member cannot limit the door hook. The door hook can move relative to the lock hook, and the user can complete the door opening action.

[0146] Before opening the cavity assembly, the user must first unlock the door by releasing the stopper from the door hook, and then open the cavity assembly. This two-step process improves the safety of the cooking appliance.

[0147] During or after cooking, the food inside the cooking cavity can be very hot. Opening the door to remove food directly presents a risk of burns. Therefore, the present invention utilizes the aforementioned stopper and door hook to ensure that, when a user wishes to open the cavity assembly, they must first unlock the cooking appliance. This serves as a reminder to the user and prevents children from accidentally opening the cavity assembly, significantly improving the safety of the cooking appliance.

[0148] Therefore, the lock structure proposed in the present invention cooperates with the limiter and the door hook to increase the difficulty of unlocking the lock structure, prevent users, especially children, from accidentally opening the cavity assembly, and improve the safety of cooking utensils using the lock structure.

[0149] In the above embodiment, when an unlocking command is received, the control method also includes: when the time after receiving the unlocking command reaches a set time, based on the door body assembly being in a closed state, the driving assembly is energized so that the driving assembly drives the limit member to move to the first position.

[0150] In this embodiment, upon receiving an unlock command, the drive assembly is energized and drives the retaining member to the second position, at which point the retaining member releases the lock from the door hook. A timer begins upon receiving the unlock command. If the door assembly remains closed after the set timer expires, this may indicate an accidental release. For safety reasons, if the user does not open the door for an extended period, the retaining member switches to the first position, retaining the lock from the door hook. The user must then input an unlock command to the cooking appliance again to open the door. This approach ensures that the cooking appliance is promptly locked in the event of an accidental release of the child lock, further preventing children from accidentally opening the cooking appliance.

[0151] In any of the above embodiments, when the cooking appliance is powered on, the control method further includes: when receiving an instruction to turn off the child lock, powering on the driving component so that the driving component drives the limiting member to move to the second position.

[0152] In this embodiment, the user can actively turn off the child lock. For example, if the user has different usage requirements, the user can turn off the child lock function. At this time, even if the door assembly is in a closed state, the lock structure will not lock the cooking appliance through the child lock function.

[0153] Specifically, when a command to close the child lock is received, the drive component is powered on, and the drive component drives the limit member to move to the second position. In this case, the user can open the cavity component simply by pulling the door component, thereby meeting the user's usage needs in different usage scenarios and improving the functional diversity of the cooking appliance.

[0154] In any of the above embodiments, when the cooking appliance is powered on, the control method also includes: collecting the input voltage of the cooking appliance; based on the input voltage being less than a preset value, the acquisition module obtains the position of the limit member; the power-on module is also used to: based on the limit member being in the first position, power on the drive component so that the drive component drives the limit member to move to the second position.

[0155] In this embodiment, when the cooking appliance is powered on, the input voltage of the cooking appliance needs to be collected at any time. If the input voltage of the cooking appliance is less than a preset value, it means that the cooking appliance has a power outage. At this time, the limit member needs to be moved to the second position.

[0156] Specifically, if the cooking appliance loses power, the input voltage will be less than a preset value, which may be a value set by the manufacturer and is typically set to a relatively low value to accurately determine whether the cooking appliance has lost power. In the event of a power outage, the position of the retaining member must be determined. If the retaining member is in the second position, no unlocking operation is required. If the retaining member is in the first position, the drive assembly must be energized to drive the retaining member to the second position, thereby preventing the cavity assembly from being unable to open when the cooking appliance loses power.

[0157] In a possible application, at the moment when the cooking appliance loses power, a pulse voltage may be provided to the driving component through the capacitor to power on the driving component.

[0158] like Figure 9 As shown, in a possible embodiment, the method for controlling a cooking appliance includes:

[0159] Step 302, the cooking appliance is in a standby state;

[0160] Step 304: Press the child lock button to turn off. If yes, go to step 306; if not, go back to step 304.

[0161] Step 306: The input voltage is less than the set value. If so, go to step 308; otherwise, go to step 314.

[0162] Step 308, the limiting member is in the unlocked position, if so, proceed to step 310, if not, proceed to step 312;

[0163] Step 310, no action required;

[0164] Step 312, applying a pulse voltage to the electromagnet to place the limiter in the unlocked position;

[0165] Step 314 , applying a pulse voltage to the electromagnet to place the limiter in the locked position;

[0166] Step 316, press the unlock button, if yes, go to step 318, if not, go to step 306;

[0167] Step 318, applying a pulse voltage to the electromagnet to place the limiter in the unlocked position;

[0168] Step 320, the timer is at t=0s;

[0169] Step 322, open the door assembly within the set time, if yes, then end, if not, return to step 314.

[0170] When the limiter is in the unlocked position, a pulse current is given to the electromagnet, which attracts and pushes the limiter to the locked position. At the same time, the limiter rotates 30° along the guide rail structure inside the shell, so that the limiter is stuck in the locked position. When the limiter is in the locked position, the door hook cannot move up, thereby achieving locking.

[0171] When the limiter is in the locked position, a pulse current is given to the electromagnet, which attracts and pushes the limiter. At the same time, the limiter rotates 30° along the driving axis of the electromagnet to leave the locked position and return to the unlocked position along the guide rail structure on the inner wall of the shell. The door hook can be disengaged upward, thereby achieving unlocking.

[0172] When the user wants to unlock the cooking appliance, he or she can manually unlock it using an electronic combination key or a mechanical unlocking button.

[0173] When the child lock function needs to be turned off, the user can turn off the child lock function through program operation. This operation is achieved by a multi-step electronic combination button or mechanical button.

[0174] To prevent the furnace door from being unable to open due to sudden power outages, when the power is suddenly cut off, the input voltage is less than the set value, and the position sensor obtains the position of the limiter. If the limiter is not in the unlocked position, the controller controls the capacitor to give the electromagnet a pulse current to return the limiter to the unlocked position.

[0175] When the appliance is powered on and the unlock button is pressed, the electromagnet drives the stopper to the unlock position and a timer starts. If the door is not opened within 10 seconds, the controller pulses a current into the electromagnet, causing it to automatically lock. Cooking appliances with built-in position sensors enhance safety. The electromagnet is only powered momentarily, providing greater reliability.

[0176] In an embodiment of the present invention, a cooking appliance control device 400 is provided, which is used for the cooking appliance as in the above embodiment.

[0177] like Figure 10 As shown, the control device 400 of the cooking appliance includes:

[0178] A collection module 410 collects the opening and closing status of the door assembly when the cooking appliance is powered on;

[0179] The power-on module 420 energizes the driving assembly based on the door assembly being in a closed state, so that the driving assembly drives the limit member to move to the first position. The power-on module 420 is also used for: when the door assembly is in a closed state and receives an unlocking command, energizing the driving assembly so that the driving assembly drives the limit member to move to the second position.

[0180] When the limiting member is in the first position, the limiting member limits the movement of the door hook. When the limiting member is in the second position, the limiting member releases the restriction on the door hook.

[0181] When the door body assembly closes the cavity assembly, the door hook is locked with the lock hook on the cavity assembly. When the user applies a pulling force through the door body assembly, the door hook can move relative to the lock hook. When the door body and the lock hook are separated, the door body assembly opens the cavity assembly.

[0182] The driving assembly can drive the limit member to operate. When the door body assembly is in a closed state, the driving assembly is energized, and the driving assembly can drive the limit member to move from the second position to the first position. The limit member contacts the door hook, and at this time, the limit member and the limit part are in a locked state. The limit part restricts the movement of the limit member, so that the limit member can limit the door hook, and the door hook cannot operate relative to the lock hook. The door body assembly and the cavity assembly are in a locked state, and the user cannot open the cavity assembly by pulling the door body assembly.

[0183] When receiving the unlocking command, the driving component also needs to be energized so that the driving component drives the limit member to move to the second position, and the limit part releases the lock on the limit member. Moreover, at this time, the limit member is separated from the door hook, so that the limit member cannot limit the door hook. The door hook can move relative to the lock hook, and the user can complete the door opening action.

[0184] Before opening the cavity assembly, the user must first unlock the door by releasing the stopper from the door hook, and then open the cavity assembly. This two-step process improves the safety of the cooking appliance.

[0185] During or after cooking, the food inside the cooking cavity can be very hot. Opening the door to remove food directly presents a risk of burns. Therefore, the present invention utilizes the aforementioned stopper and door hook to ensure that, when a user wishes to open the cavity assembly, they must first unlock the cooking appliance. This serves as a reminder to the user and prevents children from accidentally opening the cavity assembly, significantly improving the safety of the cooking appliance.

[0186] Therefore, the lock structure proposed in the present invention cooperates with the limiter and the door hook to increase the difficulty of unlocking the lock structure, prevent users, especially children, from accidentally opening the cavity assembly, and improve the safety of cooking utensils using the lock structure.

[0187] In the above embodiment, when an unlocking command is received, the power-on module is also used to: when the time after receiving the unlocking command reaches a set time, based on the door body assembly being in a closed state, energize the drive assembly so that the drive assembly drives the limit member to move to the first position.

[0188] In this embodiment, upon receiving an unlock command, the drive assembly is energized and drives the retaining member to the second position, at which point the retaining member releases the lock from the door hook. A timer begins upon receiving the unlock command. If the door assembly remains closed after the set timer expires, this may indicate an accidental release. For safety reasons, if the user does not open the door for an extended period, the retaining member switches to the first position, retaining the lock from the door hook. The user must then input an unlock command to the cooking appliance again to open the door. This approach ensures that the cooking appliance is promptly locked in the event of an accidental release of the child lock, further preventing children from accidentally opening the cooking appliance.

[0189] In any of the above embodiments, when the cooking appliance is powered on, the power module is further used to: upon receiving an instruction to close the child lock, power the drive assembly so that the drive assembly drives the limit member to move to the second position.

[0190] In this embodiment, the user can actively turn off the child lock. For example, if the user has different usage requirements, the user can turn off the child lock function. At this time, even if the door assembly is in a closed state, the lock structure will not lock the cooking appliance through the child lock function.

[0191] Specifically, when a command to close the child lock is received, the drive component is powered on, and the drive component drives the limit member to move to the second position. In this case, the user can open the cavity component simply by pulling the door component, thereby meeting the user's usage needs in different usage scenarios and improving the functional diversity of the cooking appliance.

[0192] In any of the above embodiments, when the cooking appliance is powered on, the acquisition module is also used to: collect the input voltage of the cooking appliance; the control device also includes: an acquisition module, which acquires the position of the limit member based on the input voltage being less than a preset value; the power-on module is also used to: based on the limit member being in the first position, power on the drive component so that the drive component drives the limit member to move to the second position.

[0193] In this embodiment, when the cooking appliance is powered on, the input voltage of the cooking appliance needs to be collected at any time. If the input voltage of the cooking appliance is less than a preset value, it means that the cooking appliance has a power outage. At this time, the limit member needs to be moved to the second position.

[0194] Specifically, if the cooking appliance loses power, the input voltage will be less than a preset value, which may be a value set by the manufacturer and is typically set to a relatively low value to accurately determine whether the cooking appliance has lost power. In the event of a power outage, the position of the retaining member must be determined. If the retaining member is in the second position, no unlocking operation is required. If the retaining member is in the first position, the drive assembly must be energized to drive the retaining member to the second position, thereby preventing the cavity assembly from being unable to open when the cooking appliance loses power.

[0195] In a possible application, at the moment when the cooking appliance loses power, a pulse voltage may be provided to the driving component through the capacitor to power on the driving component.

[0196] like Figure 11 As shown, in an embodiment of the present invention, a control device 500 for a cooking appliance is proposed, comprising: a processor 510 and a memory 520, wherein the memory 520 stores programs or instructions, and when the processor 510 executes the programs or instructions in the memory 520, it implements the steps of the control method in any of the above embodiments and can achieve the same technical effects, which will not be repeated here.

[0197] In an embodiment of the present invention, a readable storage medium is proposed, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the control method in any of the above embodiments are implemented, and the same technical effects can be achieved, which will not be repeated here.

[0198] In an embodiment of the present invention, a cooking appliance is proposed, comprising: a control device as in the above embodiment; and / or a readable storage medium as in the above embodiment, and can achieve the same technical effects, which will not be described in detail here.

[0199] In the present invention, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; and "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0200] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0201] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A lock structure for a cooking appliance, characterized in that: The cooking appliance includes a lock hook, and the lock structure includes: A door hook, used to cooperate with the lock hook; a housing, wherein a limiting portion is provided on the housing; a limiting member slidably connected to the housing, wherein when the limiting member is in a first position, the limiting member is locked with the limiting portion, and the limiting member limits the door hook; and when the limiting member is in a second position, the limiting member releases the limit on the door hook; a driving assembly, configured to drive the limiting member to move between the first position and the second position when the driving assembly is powered on; When the limiting member is located at the third position, under the driving action of the driving assembly, the limiting member can rotate relative to the housing so that the limiting member is locked with the limiting portion or separated from the limiting portion; The first position is located between the second position and the third position; When locking is required, the drive component is powered on, and the drive component first drives the limit member to move from the second position to the third position, and then drives the limit member to rotate at the third position, and then drives the limit member to move to the first position. The rotated limit member can be locked with the limit part; when unlocking is required, the limit member is first driven to move to the third position, and then driven to rotate. During the movement of the limit member to the second position, the limit member will not be locked with the limit part.

2. The lock structure according to claim 1, characterized in that: The driving assembly is provided with a plurality of first inclined surfaces, the limiting member is provided with a plurality of second inclined surfaces, and the limiting portion is provided with a plurality of third inclined surfaces, and the first inclined surfaces, the second inclined surfaces and the third inclined surfaces have the same inclination angle; When the limiting member is in the first position, the first inclined surface is separated from the second inclined surface, and the first inclined surface is in contact with the third inclined surface. When the limiting member is in the third position, under the driving action of the driving component, the second inclined surface can slide relative to the first inclined surface. When the limiting member is in the second position, the first inclined surface is in contact with the second inclined surface, and the first inclined surface can push the second inclined surface.

3. The lock structure according to claim 1, characterized in that: The drive assembly includes: a driving member, configured to drive the limiting member to move in a direction away from the second position; An elastic member is connected to the limiting member, and the elastic member can push the limiting member to move. When the limiting member is located at the first position and the third position, the elastic member is in an elastically deformed state. When the limiting member is located at the second position, the elastic member is in an original state.

4. The lock structure according to claim 3, characterized in that: The driving member includes: electromagnet; a drive shaft, slidably connected to the electromagnet, and when the electromagnet is energized, the electromagnet is used to drive the drive shaft to move; A return spring is connected to the electromagnet and the drive shaft, and the return spring is used to drive the drive shaft to move and return.

5. The lock structure according to claim 2, characterized in that: The limiting member is provided with a first guide groove. When the limiting member is located at the second position, the limiting portion is located in the first guide groove. When the limiting member is located at the first position and the third position, the limiting portion extends out of the first guide groove.

6. A cooking utensil, characterized in that: include: The lock structure according to any one of claims 1 to 5; A cavity assembly, wherein the cavity assembly is provided with a lock hook, and the lock structure is provided on the cavity assembly; a door body assembly, wherein the door hook is provided on the door body assembly; An unlocking button is provided on the door body assembly, and the unlocking button is electrically connected to the driving assembly.

7. A method for controlling a cooking appliance, characterized in that: For the cooking appliance according to claim 6, the control method comprises: When the cooking appliance is powered on, collecting the opening and closing status of the door assembly; When the door assembly is in a closed state, energizing the driving assembly so that the driving assembly drives the limiting member to move to the first position; When the door assembly is in a closed state and an unlocking instruction is received, the driving assembly is energized so that the driving assembly drives the limiting member to move to the second position; When the limiting member is located at the first position, the limiting member limits the movement of the door hook. When the limiting member is located at the second position, the limiting member releases the limitation on the door hook.

8. The control method according to claim 7, characterized in that: When an unlocking instruction is received, the control method further includes: When the time after receiving the unlocking instruction reaches the set time, based on the fact that the door assembly is in a closed state, the driving assembly is energized so that the driving assembly drives the limiting member to move to the first position.

9. The control method according to claim 7 or 8, characterized in that: When the cooking appliance is powered on, the control method further includes: When a child lock closing instruction is received, the driving component is energized so that the driving component drives the limiting member to move to the second position.

10. The control method according to claim 7 or 8, characterized in that: When the cooking appliance is powered on, the control method further includes: collecting an input voltage of the cooking appliance; When the input voltage is less than a preset value, obtaining the position of the limit member; Based on the position-limiting member being located at the first position, the driving assembly is energized so that the driving assembly drives the position-limiting member to move to the second position.

11. A control device for a cooking appliance, characterized in that: For the cooking appliance according to claim 6, the control device comprises: a collection module, configured to collect the opening and closing status of the door assembly when the cooking appliance is powered on; a power-on module, configured to power the driving assembly when the door assembly is in a closed state, so that the driving assembly drives the limiting member to move to the first position; The power supply module is further configured to: when the door assembly is in a closed state and an unlocking instruction is received, power the drive assembly so that the drive assembly drives the limit member to move to the second position; When the limiting member is located at the first position, the limiting member limits the movement of the door hook. When the limiting member is located at the second position, the limiting member releases the limitation on the door hook.

12. A control device for a cooking appliance, characterized in that: include: A processor and a memory, wherein the memory stores a program or instruction, and the processor implements the steps of the control method according to any one of claims 7 to 10 when executing the program or instruction in the memory.

13. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the control method according to any one of claims 7 to 10 are implemented.

14. A cooking utensil, characterized in that: include: The control device according to claim 11 or 12; and / or The readable storage medium of claim 13.

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