CN112438610B

CN112438610B - Cooking utensil

Info

Publication number: CN112438610B
Application number: CN201910812373.1A
Authority: CN
Inventors: 刘化勇; 梁志佳; 邢胜华; 黄韦铭; 严若飞; 罗飞龙
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2022-07-08
Anticipated expiration: 2039-08-30
Also published as: CN112438610A

Abstract

The present invention provides a cooking appliance, comprising: a pan body; the pot cover is covered on the pot body; the locking device is matched with the pot body and the pot cover and is suitable for reciprocating motion between a cover closing position for locking the pot body and the pot cover and a cover opening position for unlocking the pot body and the pot cover; the electric driving piece is connected with the locking device and is used for driving the locking device to reciprocate under the condition that the cooking appliance is electrified; the reset driving piece is matched with the locking device and/or the electric driving piece and is used for automatically driving the locking device to move to the uncovering position and/or automatically triggering the electric driving piece to enable the electric driving piece to drive the locking device to move to the uncovering position under the condition that the cooking utensil is powered off so as to unlock the pot body and the pot cover. The reset driving piece is additionally arranged, and even if the locking device is powered off suddenly in the using process, the locking device can still move automatically to the uncovering position, so that normal unlocking between the pot cover and the pot body is guaranteed, and the pot cover can be opened normally.

Description

Cooking utensil

Technical Field

The invention relates to the technical field of cooking appliances, in particular to a cooking appliance.

Background

At present, some cooking appliances are provided with a locking device for locking a pot body and a pot cover. However, the existing locking devices are basically electrically driven to open and close, and if power is off, the problem that the locking device cannot be separated to cause that the appliance cannot be opened is caused, so that great trouble is brought to users.

Disclosure of Invention

In order to solve at least one of the above technical problems, an object of the present invention is to provide a cooking appliance.

In order to achieve the above object, the present invention provides a cooking appliance, comprising: a pan body; the pot cover is covered on the pot body; the locking device is matched with the pot body and the pot cover and is suitable for reciprocating motion between a cover closing position for locking the pot body and the pot cover and a cover opening position for unlocking the pot body and the pot cover; the electric driving piece is connected with the locking device and is used for driving the locking device to reciprocate under the condition that the cooking appliance is electrified; and the resetting driving piece is matched with the locking device and/or the electric driving piece and is used for automatically driving the locking device to move to the uncovering position and/or automatically triggering the electric driving piece to enable the electric driving piece to drive the locking device to move to the uncovering position under the condition that the cooking utensil is powered off so as to unlock the pot body and the pot cover.

The cooking utensil provided by the invention is additionally provided with the reset driving piece, the reset driving piece can be matched with at least one of the locking device and the electric driving piece (namely the locking device and/or the electric driving piece), and the locking device can move to the uncovering position under the condition of power failure of the cooking utensil, so that the locking device can still automatically move to the uncovering position even if the power failure occurs suddenly in the using process, the normal unlocking between the pot cover and the pot body is ensured, the normal opening of the pot cover is further ensured, the trouble of users caused by the fact that the pot cover cannot be opened due to the power failure in the prior art is effectively solved, the use experience of the users is improved, the market competitiveness of products is increased, and the market popularization of the products is facilitated.

Under the condition that the product is electrified, the electric driving piece can work normally, so that the locking device can be driven to move to the cover closing position, and the reliable locking of the pot cover and the pot body is ensured; when the cover needs to be opened, the electric driving piece can drive the locking device to move to the cover opening position, and the normal unlocking of the pot cover and the pot body is guaranteed. Therefore, the normal opening of pot cover can be guaranteed to the electric drive piece under the circular telegram circumstances, and this is favorable to shortening the operating time of the driving piece that resets for the driving piece that resets need not to keep operating condition in cooking utensil's whole working process, and only need work under the circumstances of outage guarantee the pot cover can normally open can, therefore be favorable to prolonging the life and the service reliability of the driving piece that resets, and then prolong cooking utensil's life and service reliability.

In addition, compare in set up manual part (like stay cord, pull rod etc.) and directly exert drive power to the locking device under the circumstances of outage and come the direct drive locking device to move to the scheme of the position of uncapping, this scheme need not the manual drive power of exerting of user, both avoided the excessive product damage or the trouble that leads to of user's application of force, avoided user's application of force undersize to lead to the pot cover to open again, therefore showing the operation degree of difficulty that has reduced the user, be favorable to realizing the outage of pot cover and opening automatically, thereby further improved user's use and experienced.

It should be noted that the reset driving member may be directly engaged with the locking device, and in case of power failure, the locking device is driven to automatically move to the lid opening position by applying a reset driving force to the locking device, for example, an elastic reset member (such as a spring, a torsion spring, etc.) is directly engaged with the locking device, and generates elastic deformation in the process of moving the locking device to the lid closing position, and in case of power failure, the elastic reset member may drive the locking device to reversely move to the lid opening position by using a reset elastic force thereof, so as to achieve unlocking; the reset driving piece can also be matched with the electric driving piece, and the electric driving piece can reset to move by supplying power to the electric driving piece or applying reset driving force to the electric driving piece so as to drive the locking device to move to the uncovering position; the reset driving piece can also be matched with the locking device and the electric driving piece simultaneously, the power supply is provided for the electric driving piece under the condition of power failure, the reset driving force is provided for the locking device, and the locking device is driven by the double driving force to move to the uncovering position.

In addition, the cooking utensil in the technical scheme provided by the invention can also have the following additional technical characteristics:

in the above technical solution, optionally, the electric driving member is a motor, the reset driving member includes a torsion spring, the torsion spring is matched with a driving shaft of the motor, the motor drives the locking device to move to the cover closing position, the locking device elastically deforms, so that the motor is driven to rotate and reset by the reset elastic force of the locking device under the condition that the cooking utensil is powered off, and the locking device is driven by the motor to move to the cover opening position.

The electric driving part adopts a motor, the motor has high working reliability, and can realize forward and reverse movement so as to drive the locking device to reciprocate; the reset driving piece adopts the torsional spring, the torsional spring cooperatees with the drive shaft of motor, move to the in-process that closes the lid position at motor drive locking device, the torsional spring takes place elastic deformation and stores elastic potential energy, therefore when the cooking utensil outage leads to the drive shaft of motor can not the reverse rotation, the torsional spring can release elastic potential energy and then drive the drive shaft reverse rotation, make the drive shaft can drive locking device reverse motion to the position of uncapping, and then unblock pot cover and the pot body, make the pot cover can normally open.

The specific form of the engagement of the torsion spring with the drive shaft is not limited. Such as: the main body part of the torsion spring can be fixedly sleeved on a driving shaft of the motor to synchronously rotate with the driving shaft, and two torsion arms of the torsion spring are limited at other parts (such as a pot cover) and fixed, so that the torsion spring can elastically deform in the process of rotating along with the driving shaft; or, the main body part of the torsion spring is fixed at other parts (such as a pot cover) and is kept still, one torsion arm of the torsion spring is limited on the driving shaft and keeps synchronous motion with the driving shaft, and the torsion arm also can elastically deform the torsion spring in the process of rotating along with the driving shaft.

In the above technical scheme, the electric driving part is an electromagnetic push rod, the reset driving part includes a spring, the spring is matched with the electromagnetic push rod, and the electromagnetic push rod drives the locking device to move to the cover closing position, so that the locking device is elastically deformed, the electromagnetic push rod is driven to move and reset by the reset elasticity of the locking device under the condition that the cooking utensil is powered off, and the electromagnetic push rod drives the locking device to move to the cover opening position.

The electric driving part adopts the electromagnetic push rod, the structure and the principle of the electromagnetic push rod are simple, forward and reverse linear motion can be realized, and compared with a motor, the structure that rotary motion is converted into linear motion is favorably omitted, so that the structure of the locking device is favorably simplified. The reset driving part adopts a spring, the spring is matched with the electromagnetic push rod to drive the locking device to move to the cover closing position in the process of the electromagnetic push rod, the spring generates elastic deformation to store elastic potential energy, therefore, when the electromagnetic push rod cannot move reversely due to the power failure of the cooking appliance, the spring can release the elastic potential energy to drive the electromagnetic push rod to move reversely, the electromagnetic push rod can drive the locking device to move reversely to the cover opening position, and then the pot cover and the pot body are unlocked, so that the pot cover can be opened normally.

The specific matching form of the spring and the electromagnetic push rod is not limited. Such as: the electromagnetic push rod comprises a shell, an electromagnet, a push-pull rod and a limiting rod, wherein two ends of an iron core of the electromagnet are respectively connected with the push-pull rod and the limiting rod, the push-pull rod is connected with the locking device, the spring adopts a compression spring, the compression spring is sleeved on the limiting rod, and two ends of the compression spring respectively abut against a limiting flange at the end part of the limiting rod and the shell; or, the spring adopts extension spring, extension spring's both ends are spacing respectively on gag lever post and shell, and in the in-process that electromagnetism push rod drove locking device and move to closing the lid position, the iron core of electro-magnet withdraws in to the shell, makes push-and-pull rod drive locking device move to closing the lid position, drives the gag lever post simultaneously and keeps away from the shell and makes extension spring stretched, then when the outage, extension spring resets and can drive gag lever post and iron core reverse movement, and then makes push-and-pull rod drive locking device move to the position of uncapping. Or, the electromagnetic push rod comprises a shell, an electromagnet and a push-pull rod, two ends of the push-pull rod are respectively connected with the iron core and the locking device, the spring adopts an extension spring, the extension spring is sleeved on the push-pull rod, two ends of the extension spring are respectively limited on the push-pull rod and the shell, in the process that the electromagnetic push rod drives the locking device to move to the cover closing position, the iron core of the electromagnet extends outwards, the push-pull rod drives the locking device to move to the cover closing position, meanwhile, the push-pull rod is driven to be away from the shell to stretch the extension spring, when the power is off, the extension spring resets to drive the push-pull rod and the iron core to move reversely, and further, the locking device is driven to move to the cover opening position; or the spring is a compression spring, the compression spring is sleeved on the push-pull rod, two ends of the compression spring are respectively abutted against a limiting flange at the end part of the push-pull rod and the shell, in the process that the electromagnetic push rod drives the locking device to move to the cover closing position, the iron core of the electromagnet retracts towards the inside of the shell to drive the locking device to move to the cover closing position, meanwhile, the push-pull rod is driven to be close to the shell to compress the compression spring, and when the power is off, the compression spring resets to drive the push-pull rod and the iron core to move reversely, so that the locking device is driven to move to the cover opening position.

In any of the above aspects, the reset driver includes an internal power source configured to: and supplying power to the electric driving piece under the condition that the cooking utensil is powered off, so that the electric driving piece moves and resets to drive the locking device to move to the uncovering position.

The reset driving piece is an internal power supply, and when the cooking utensil is powered off, the internal power supply can supply power for the electric driving piece, so that the electric driving piece has power and can move to reset, and then the locking device is driven to move to the uncovering position, and the pot cover can be normally opened. The scheme utilizes the electric driving part to drive the locking device to move under the condition of power failure, is beneficial to saving parts such as a torsion spring, a spring and the like in the scheme, and simplifies the mechanical structures of related parts such as a motor, an electromagnetic push rod and the like.

In the above technical solution, the controller of the cooking appliance is electrically connected with the electric driving member and adapted to control the electric driving member; the internal power supply is further configured to: and supplying power to the controller under the condition that the cooking appliance is powered off, so that the controller controls the electric driving piece to move and reset.

A controller (such as a control panel) of the cooking utensil is electrically connected with the electric driving part, and the starting, the stopping and the related working parameters of the electric driving part can be controlled by utilizing a control program preset in the electric driving part under the condition of normal electrification, so that the automatic control of the electric driving part is realized; when the power is cut off, the built-in power supply also supplies power to the controller, so that the controller can be continuously utilized to control the motion reset of the electric driving piece, and the control circuit of the built-in power supply is favorably simplified.

In the above technical solution, the built-in power supply or the controller is configured to: and under the condition that the controller controls the electric driving piece to move and reset, stopping supplying power to the electric driving piece and/or the controller to stop the electric driving piece.

After the controller controls the electric driving piece to move and reset, the built-in power supply automatically stops supplying power to the electric driving piece and/or the controller, so that the electric driving piece can automatically stop running in time, electric quantity waste is avoided, manual operation of a user is not needed, and user experience is further improved. The controller may control the built-in power supply to stop supplying power, or the controller may control the built-in power supply to stop supplying power.

In the above technical solution, the cooking appliance includes a reset switch, and the built-in power supply is configured to: powering the electric drive to reset the electric drive motion if the cooking appliance is de-energized and the reset switch is triggered.

The reset switch is used for controlling the built-in power supply to supply power or stop supplying power to the electric drive part, so that a user can conveniently control the built-in power supply to work and start supplying power at any time according to requirements under the condition of power failure, and different requirements of the user can be met. Such as: the user can trigger the reset switch when power is just off, and can trigger the reset switch after the pressure in the cooker is reduced after a period of power-off, so that the built-in power supply supplies power to the electric driving element and the cover is opened when power is off. The reset switch can be in the form of a key, a knob, a touch screen and the like.

Further, the internal power supply is further configured to: stopping the supply of power to the electric drive to stop the movement of the electric drive if the reset switch is triggered again. Therefore, the user can conveniently control the built-in power supply to stop supplying power at any time according to the requirement, and different requirements of the user can be met.

Or after the electric driving part moves and resets, the power supply of the electric driving part by the built-in power supply is automatically stopped (the control circuit of the built-in power supply can control the electric driving part to stop supplying power), so that the electric driving part can be automatically stopped in time, the electric quantity waste is avoided, the manual operation of a user is not needed, and the user experience is further improved.

In the above technical solution, the built-in power supply is a rechargeable power supply.

The built-in power supply adopts a rechargeable power supply form, so that the replacement frequency of the built-in power supply is reduced, and the use experience of a user is improved.

In the above technical solution, the built-in power supply is electrically connected to a power supply system of the cooking appliance for connecting to an external power supply, and is adapted to be charged by the power supply system when the cooking appliance is powered on.

The power supply system of the cooking utensil is used for being connected with an external power supply, the external power supply is used for providing electric energy for the product, the built-in power supply is electrically connected with the power supply system, the power supply system is used for charging the built-in power supply under the power-on condition, the user does not need to repeatedly disassemble and assemble the built-in power supply, and therefore the use experience of the user is further improved.

In the above technical solution, the controller of the cooking appliance is electrically connected to the built-in power supply and the power supply system, and is configured to control the power supply system to charge the built-in power supply when the cooking appliance is powered on.

The controller is used for controlling the power supply system to charge the built-in power supply, so that reasonable charging is facilitated, normal cooking of a product cannot be influenced in the charging process, and the conditions of insufficient charging or overcharging and the like of the built-in power supply are avoided, so that the use reliability of the product is further improved.

In the foregoing technical solution, the controller is specifically configured to: the method includes detecting a state of charge of the built-in power supply when the cooking appliance is powered on, controlling the power supply system to charge the built-in power supply when the state of charge is an unfilled state, and controlling the power supply system to stop charging the built-in power supply when the state of charge is a filled state.

Under the condition that the cooking appliance is powered on, the electric quantity state of the built-in power supply is detected firstly, the power supply system is controlled to charge the built-in power supply only under the condition that the electric quantity state is not fully charged, and the power supply system is controlled to stop charging in time when the electric quantity state is fully charged, so that the condition that the built-in power supply is excessively charged is effectively prevented, the electric quantity waste is avoided, and the damage of the built-in power supply is prevented.

In the above technical solution, the controller is further configured to: detecting whether the cooking appliance is powered off when the cooking appliance is powered on, controlling the built-in power supply to supply power to the electric driving part and the controller when the cooking appliance is determined to be powered off, and controlling the power supply system to charge the built-in power supply when the cooking appliance is determined to be powered on.

Under the condition that cooking utensil circular telegram, through whether detect cooking utensil outage, can supply power for built-in power supply or charge and provide reasonable foundation. Specifically, when judging the outage then control built-in power supply to electric driving piece and controller power supply to guarantee that the pot cover can normally open, when judging not having the outage, electric driving piece can normally control locking device reciprocating motion, guarantees that the pot cover can normally open and close, then controls power supply system and charges to built-in power supply this moment, can not influence locking device's normal operating.

In the above technical solution, the cooking appliance includes a charging switch connected to the built-in power supply, and the power supply system charges the built-in power supply when the cooking appliance is powered on and the charging switch is triggered, and stops charging the built-in power supply when the charging switch is triggered again.

The charging switch is used for controlling the power supply system to charge or stop charging the built-in power supply, so that a user can conveniently control the charging start and stop of the built-in power supply at any time according to requirements under the power-on condition, and different requirements of the user can be met. Such as: the user can trigger the charging switch when the power supply system is just powered on, and can also trigger the charging switch after the product runs stably after the power supply system is powered on for a period of time, so that the power supply system charges the built-in power supply; the charging switch can be triggered again after a period of time to stop the power supply system from charging the internal power supply, so as to prevent the working condition of the cooking appliance from being affected, or the charging switch can be triggered again after the charging is finished to stop the power supply system from charging the internal power supply, so as to prevent the internal power supply from being overcharged. The charging switch can be in the form of a key, a knob, a touch screen and the like, and can be further provided with an electric quantity indicator lamp or a display screen for displaying a built-in power supply, so that a user can conveniently and manually control the charging switch in time.

In any one of the above technical solutions, the locking device includes a lock catch disposed on the pot cover and a transmission mechanism connected to the lock catch, and the transmission mechanism is connected to the electric driving member and adapted to drive the lock catch to reciprocate under the driving of the electric driving member, so that the lock catch is locked with or disengaged from the pot body.

The locking device comprises a lock catch and a transmission mechanism, the lock catch is arranged on the pot cover, so that the space inside the pot cover is conveniently and reasonably utilized, and the layout is reasonable; the lock catch is locked with or separated from the pot body, so that the pot cover and the pot body are locked or unlocked; the transmission mechanism is positioned between the lock catch and the electric driving piece, so that the motion forms of the electric driving piece, such as rotary motion, linear motion and the like, are conveniently converted into the motion forms of the adaptive lock catch, and then the form and the position of the lock catch are reasonably designed according to the specific structure of a product, so that the structure and the performance of the product are optimized.

In the above technical scheme, the transmission mechanism comprises a transmission plate, a matching part is arranged on the transmission plate, the lock catch comprises a guide part, a connecting part and a locking part which are connected in sequence, the guide part is in sliding fit with the matching part, and the locking part is matched with the pot body; the transmission plate drives the lock catch to reciprocate under the driving of the electric driving piece, so that the guide part slides in a reciprocating manner relative to the matching part, and the locking part is locked with or separated from the pot body.

The transmission mechanism comprises a transmission plate, and the transmission plate is relatively thin, so that the thickness of the pot cover is favorably reduced, and the volume of the cooking appliance is further reduced; the hasp includes guide part, connecting portion and locking portion, cooperation portion sliding fit on guide part and the driving plate, and the driving plate links to each other with the electric drive piece, and then during electric drive piece drive driving plate reciprocating motion, can the guide part of hasp along cooperation portion reciprocating sliding, and then drive the reciprocating motion of the relative pot body of locking portion, and then realize the locking or the unblock of pot cover and the pot body, this scheme structure and principle are comparatively simple, easily realize. The guide part can adopt a protruding form such as a guide post, and the matching part adopts a groove form such as a sliding groove; or the guide part is in the form of a groove such as a sliding groove, and the matching part is in the form of a protrusion such as a guide column.

Furthermore, for the scheme that the electric driving part is a motor, the transmission mechanism further comprises a gear sleeved on the driving shaft and a rack meshed with the gear, and the rack is fixedly connected with the transmission plate and further drives the transmission plate to move linearly.

In the above technical scheme, one end of the pot cover is connected with one end of the pot body through a hinge, the hinge sleeve is provided with a cover opening torsion spring, the number of the latches is two, the two latches are symmetrically distributed in a mirror mode, the two symmetric surfaces of the latches are perpendicular to the hinge axis of the hinge, and the number of the matching parts is equal to that of the latches and corresponds to that of the latches one to one.

Hinged joint is passed through with the one end of the pot body to the one end of pot cover, and the hinge sleeve is equipped with the torsional spring that uncaps, then locking device moves when uncapping the position, under the effect of the torsional spring that uncaps, the pot cover can be opened automatically, and need not the manual opening of user to user's use comfort has further been improved. Certainly, the lid-opening torsion spring is not arranged, when the locking device moves to the lid-opening position, the pot cover and the pot body are unlocked, and therefore a user can easily open the pot cover.

Furthermore, the number of the lock catches is two, the two lock catches are symmetrically distributed on the mirror surface, and the symmetrical surfaces of the two lock catches are perpendicular to the hinge shaft of the hinge, so that the pot cover is balanced in stress, the locking force of the pot cover and the pot body is improved, and the stability of the cover closing is improved; and the quantity of cooperation portion is equal and the one-to-one correspondence with the quantity of hasp, has guaranteed that two hasps can normal reciprocating motion.

Specifically, the pot body comprises a main body and an inner pot sleeved in the main body, a locking gap is formed between the pot edge of the inner pot and the top end edge of the main body, the lock catch reciprocates along the radial direction of the inner pot, the locking part extends into the locking gap to lock the pot cover and the pot body, and the locking part extends out of the locking gap to unlock the pot cover and the pot body.

In any of the above technical solutions, the cooking appliance is a pressure cooking appliance.

Pressure cooking utensils, such as pressure electric rice cooker or electric pressure cooker, are provided with a locking device for locking and bearing pressure to ensure the pressure of a cooking cavity, thereby realizing pressure cooking. These products generally all adopt the electric drive to realize the hasp, therefore adopt behind the scheme of this application, can effectively prevent to lead to the problem that pressure cooking utensil can not uncap because of the outage.

Of course, the cooking appliance may also be a non-pressure cooking appliance. Such as: some common rice cookers or other products are also provided with locking devices, and the cover plate and the inner pot are locked by the locking devices, so that the position of the cover plate and the inner pot is prevented from deviating or other functions are realized. These products have adopted the scheme of this application, also can effectively prevent to lead to the problem that cooking utensil can not uncap because of the outage.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic top view of a cooking appliance according to some embodiments of the present invention in a first state;

FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;

FIG. 3 is an enlarged schematic view of the portion B of FIG. 2;

FIG. 4 is a schematic top view of a portion of the cooking appliance of FIG. 1 in a second state;

FIG. 5 is a schematic sectional view taken along line A-A in FIG. 4;

FIG. 6 is a schematic top view of a portion of a cooking appliance in a first state according to some embodiments of the present invention;

FIG. 7 is a schematic sectional view taken along line A-A in FIG. 6;

FIG. 8 is a schematic top view of a portion of the cooking appliance of FIG. 6 in a second state;

FIG. 9 is a schematic sectional view taken along line A-A in FIG. 8;

fig. 10 is a flowchart illustrating a method for controlling a cooking appliance according to some embodiments of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 9 is:

11 main part, 12 inner pan, 121 edge, 122 locking gap, 2 pan cover, 31 lock catch, 311 guide post, 312 connecting part, 313 locking part, 32 driving plate, 321 sliding groove, 41 motor, 42 electromagnetic push rod, 421 shell, 422 telescopic part, 423 spacing rod, 51 compression spring, 52 built-in power supply, 6 controller.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A cooking appliance according to some embodiments of the present invention will be described below with reference to fig. 1 to 10.

As shown in fig. 1 to 9, the present invention provides a cooking appliance, including: the pot comprises a pot body, a pot cover 2, a locking device, an electric driving element and a reset driving element.

Specifically, the pot cover 2 is covered on the pot body; the locking device is matched with the pot body and the pot cover 2 and is suitable for reciprocating motion between a cover closing position for locking the pot body and the pot cover 2 and a cover opening position for unlocking the pot body and the pot cover 2; the electric driving piece is connected with the locking device and is used for driving the locking device to reciprocate under the condition that the cooking utensil is electrified; the reset driving part is matched with the locking device and/or the electric driving part and is used for automatically driving the locking device to move to the uncovering position under the condition that the cooking utensil is powered off and/or automatically triggering the electric driving part to enable the electric driving part to drive the locking device to move to the uncovering position so as to unlock the pot body and the pot cover 2.

According to the cooking utensil provided by the invention, the reset driving part is additionally arranged, the reset driving part can be matched with at least one of the locking device and the electric driving part (namely the locking device and/or the electric driving part), and the locking device can move to the uncovering position (as shown in fig. 3, fig. 4, fig. 8 and fig. 9) under the condition that the cooking utensil is powered off, so that the locking device can still automatically move to the uncovering position even if the power is suddenly cut off in the use process, the normal unlocking between the pot cover 2 and the pot body is ensured, the pot cover 2 can be normally opened, the trouble caused by the fact that the pot cover 2 cannot be opened due to the power failure in the prior art is effectively solved, the use experience of users is improved, the market competitiveness of products is increased, and the market popularization of the products is facilitated.

Under the condition that the product is electrified, the electric driving piece can work normally, so that the locking device can be driven to move to the cover closing position, as shown in fig. 1, fig. 2, fig. 3, fig. 6 and fig. 7, the reliable locking of the cover 2 and the pot body is ensured; when the cover needs to be opened, the electric driving piece drives the locking device to move to the cover opening position, as shown in fig. 3, 4, 8 and 9, so that the normal unlocking of the pot cover 2 and the pot body is ensured. Consequently, the normal opening of pot cover 2 can be guaranteed to the electric drive piece under the circular telegram circumstances, and this is favorable to shortening the operating time of the driving piece that resets for the driving piece that resets need not to keep operating condition in cooking utensil's whole working process, and only need work under the circumstances of outage guarantee pot cover 2 can normally open can, therefore be favorable to prolonging the life and the service reliability of the driving piece that resets, and then prolong cooking utensil's life and service reliability.

In addition, compared with the scheme that a manual component (such as a pull rope and a pull rod) is arranged to directly apply driving force to the locking device under the condition of power failure to directly drive the locking device to move to the uncovering position, the scheme does not need manual application of the driving force by a user, avoids product damage or failure caused by excessive force application of the user, avoids difficult opening of the pot cover 2 caused by too small force application of the user, obviously reduces the operation difficulty of the user, and is favorable for realizing automatic opening of the pot cover 2 in power failure, thereby further improving the use experience of the user.

It is worth to be noted that the reset driving member may be directly matched with the locking device, and the locking device is driven to automatically move to the uncovering position by applying a reset driving force to the locking device in case of power failure, for example, an elastic reset member (such as a spring, a torsion spring, etc.) is directly matched with the locking device and generates elastic deformation in the process of moving the locking device to the covering position, and then the elastic reset member may drive the locking device to reversely move to the uncovering position by using the reset elastic force thereof in case of power failure, so as to realize unlocking; the reset driving piece can also be matched with the electric driving piece, and the electric driving piece can reset to move by supplying power to the electric driving piece or applying reset driving force to the electric driving piece so as to drive the locking device to move to the uncovering position; the reset driving piece can also be matched with the locking device and the electric driving piece simultaneously, the power supply is provided for the electric driving piece under the condition of power failure, the reset driving force is provided for the locking device, and the locking device is driven by the double driving force to move to the uncovering position.

The specific structure of the cooking appliance provided by the present application is described in detail below with reference to some embodiments.

Example one

The electric driving member is a motor 41 (as shown in fig. 1 to 5), the reset driving member includes a torsion spring (not shown in the figure), the torsion spring is matched with a driving shaft of the motor 41, and the torsion spring elastically deforms in the process that the motor 41 drives the locking device to move to the cover closing position, so that the motor 41 is driven to rotate and reset by the reset elastic force of the motor 41 under the condition that the cooking utensil is powered off, and the motor 41 drives the locking device to move to the cover opening position.

The electric driving part adopts the motor 41, the motor 41 has high working reliability and can realize forward and reverse movement, so as to drive the locking device to reciprocate; the reset driving part adopts the torsional spring, the torsional spring cooperatees with the drive shaft of motor 41, in the in-process that motor 41 drives locking device and moves to closing the lid position, the torsional spring takes place elastic deformation and stores elastic potential energy, therefore when the cooking utensil outage leads to motor 41's drive shaft can not the reverse rotation, the torsional spring can release elastic potential energy and then drive shaft reverse rotation, make the drive shaft can drive locking device reverse motion to the position of uncapping, and then unblock pot cover 2 and the pot body, make pot cover 2 can normally open.

The specific form of the engagement of the torsion spring with the drive shaft is not limited. Such as: the main body part of the torsion spring can be fixedly sleeved on the driving shaft of the motor 41 to synchronously rotate with the driving shaft, and the two torsion arms of the torsion spring are limited at other parts (such as the pot cover 2) and fixed, so that the torsion spring can elastically deform in the rotating process along with the driving shaft; or, the main body of the torsion spring is fixed at other parts (such as the pot cover 2) and is kept still, one torsion arm of the torsion spring is limited on the driving shaft and keeps synchronous movement with the driving shaft, and the torsion arm can also make the torsion spring generate elastic deformation in the process of rotating along with the driving shaft.

Example two

The electric driving member is an electromagnetic push rod 42, and the reset driving member includes a spring, as shown in fig. 6 to 9, the spring is engaged with the electromagnetic push rod 42, and is elastically deformed in a process that the electromagnetic push rod 42 drives the locking device to move to the lid closing position, as shown in fig. 6 and 7, so that the electromagnetic push rod 42 is driven to move and reset by the reset elastic force of the electromagnetic push rod 42 under the condition that the cooking appliance is powered off, so that the electromagnetic push rod 42 drives the locking device to move to the lid opening position, as shown in fig. 8 and 9.

The electric driving part adopts the electromagnetic push rod 42, the structure and the principle of the electromagnetic push rod 42 are simple, forward and reverse linear motion can be realized, and compared with the motor 41, the structure that rotary motion is converted into linear motion is favorably omitted, so that the structure of the locking device is favorably simplified. The reset driving part adopts a spring, the spring is matched with the electromagnetic push rod 42, the electromagnetic push rod 42 drives the locking device to move to the cover closing position, the spring is elastically deformed to store elastic potential energy, therefore, when the electromagnetic push rod 42 cannot move reversely due to the power failure of the cooking appliance, the spring can release the elastic potential energy and then drive the electromagnetic push rod 42 to move reversely, the electromagnetic push rod 42 can drive the locking device to move reversely to the cover opening position, and then the pot cover 2 and the pot body are unlocked, and the pot cover 2 can be normally opened.

The specific form of the spring and the electromagnetic push rod 42 is not limited. Such as: the electromagnetic push rod 42 comprises a shell 421, an electromagnet, a push-pull rod and a limit rod 423, two ends of an iron core of the electromagnet are respectively connected with the push-pull rod and the limit rod 423, the push-pull rod and the iron core are combined into a telescopic part 422, the push-pull rod is connected with the locking device, the spring is a compression spring 51, the compression spring 51 is sleeved on the limit rod 423, two ends of the compression spring respectively abut against a limit flange at the end part of the limit rod 423 and the shell 421, in the process that the electromagnetic push rod 42 drives the locking device to move to the cover closing position, the iron core of the electromagnet extends outwards to drive the locking device to move to the cover closing position, meanwhile, the limit rod 423 is driven to be close to the shell 421 to compress the compression spring 51, as shown in fig. 6, when the power is off, the compression spring 51 resets to drive the limit rod 423 and the iron core to move reversely, and further drive the locking device to move to the cover opening position, as shown in fig. 8; or, the spring adopts extension spring, extension spring's both ends are spacing respectively on gag lever post 423 and shell 421, drive the in-process that locking device moved to closing the lid position at electromagnetism push rod 42, the iron core of electro-magnet withdraws to shell 421 insidely, make push-and-pull rod drive locking device move to closing the lid position, drive gag lever post 423 simultaneously and keep away from shell 421 and make extension spring stretched, then when the outage, extension spring resets and can drive gag lever post 423 and iron core antiport, and then makes push-and-pull rod drive locking device move to the position of uncapping.

Or, the electromagnetic push rod 42 includes a housing 421, an electromagnet and a push-pull rod, two ends of the push-pull rod are respectively connected to the iron core and the locking device, the spring is an extension spring, the extension spring is sleeved on the push-pull rod, and two ends of the extension spring are respectively limited on the push-pull rod and the housing 421, when the electromagnetic push rod 42 drives the locking device to move to the cover closing position, the iron core of the electromagnet extends outwards, so that the push-pull rod drives the locking device to move to the cover closing position, and simultaneously drives the push-pull rod to be away from the housing 421 so that the extension spring is extended, when the power is off, the extension spring resets, and then drives the push-pull rod and the iron core to move reversely, and further drives the locking device to move to the cover opening position; or, the spring adopts a compression spring 51, the compression spring 51 is sleeved on the push-pull rod, and two ends of the compression spring 51 are respectively abutted against a limit flange at the end of the push-pull rod and the shell 421, in the process that the electromagnetic push rod 42 drives the locking device to move to the cover closing position, the iron core of the electromagnet retracts towards the inside of the shell 421 to drive the locking device to move to the cover closing position, meanwhile, the push-pull rod is driven to be close to the shell 421 to compress the compression spring 51, and when the power is off, the compression spring 51 resets to drive the push-pull rod and the iron core to move reversely, so as to drive the locking device to move to the cover opening position.

EXAMPLE III

The reset actuator includes an internal power source 52, as shown in fig. 1 and 4, the internal power source 52 being configured to: and supplying power to the electric driving part under the condition that the cooking utensil is powered off, so that the electric driving part moves and resets to drive the locking device to move to the uncovering position.

Reset the driving piece and be built-in power supply 52, when cooking utensil outage, built-in power supply 52 can be for electric driving piece power supply for electric driving piece has power and can move the reset, and then drives locking device and move to the position of uncapping, guarantees that pot cover 2 can normally open. The scheme utilizes the electric driving part to drive the locking device to move under the condition of power failure, thereby being beneficial to saving parts such as a torsion spring, a spring and the like in the scheme and simplifying the mechanical structure of the related parts such as the motor 41, the electromagnetic push rod 42 and the like.

Further, the controller 6 of the cooking appliance is electrically connected with the electric drive, adapted to control the electric drive; the internal power source 52 is further configured to: in the event of a power failure of the cooking appliance, power is supplied to the controller 6, causing the controller 6 to control the electrical drive to move back.

A controller 6 (such as a control panel) of the cooking appliance is electrically connected with the electric driving part, and the starting, the stopping and the related working parameters of the electric driving part can be controlled by utilizing a control program preset in the electric driving part under the condition of normal electrification, so that the automatic control of the electric driving part is realized; when the power is cut off, the built-in power supply 52 also supplies power to the controller 6, so that the controller 6 can be continuously used for controlling the motion resetting of the electric driving piece, which is beneficial to simplifying the control circuit of the built-in power supply 52.

Further, the built-in power supply 52 or the controller 6 is configured to: in the case of a reset of the movement of the electric drive by the control unit 6, the supply of current to the electric drive and/or to the control unit 6 is stopped, and the electric drive is stopped.

After the controller 6 controls the electric driving part to move and reset, the built-in power supply 52 automatically stops supplying power to the electric driving part and/or the controller 6, so that the electric driving part can automatically stop running in time, electric quantity waste is avoided, manual operation of a user is not needed, and user experience is further improved. The controller 6 may control the built-in power supply 52 to stop supplying power, or the control circuit of the built-in power supply 52 may control the built-in power supply 52 to stop supplying power.

Example four

The difference from the third embodiment is that: the cooking appliance includes a reset switch (not shown in the drawings), and the built-in power supply 52 is configured to: the electric drive is powered to reset the electric drive movement in the event that the cooking appliance is de-energized and the reset switch is triggered.

The reset switch is used for controlling the built-in power supply 52 to supply power or stop supplying power to the electric drive part, so that a user can conveniently control the built-in power supply 52 to work and start supplying power at any time according to the requirement under the condition of power failure, and different requirements of the user can be met. Such as: the user can trigger the reset switch when the power is cut off, or can trigger the reset switch after the pressure in the cooker is reduced after the power is cut off for a period of time, so that the built-in power supply 52 supplies power to the electric drive part to open the cover when the power is cut off. The reset switch can be in the form of a key, a knob, a touch screen and the like.

Further, the built-in power supply 52 is also configured to: in the event that the reset switch is triggered again, the supply of power to the electric drive is stopped in order to stop the movement of the electric drive. Therefore, the user can conveniently control the built-in power supply 52 to stop supplying power at any time according to the requirement, and different requirements of the user can be met.

Or, after the electric driving part is reset, the power supply of the built-in power supply 52 to the electric driving part is automatically stopped (the control circuit of the built-in power supply 52 can control the power supply to stop), so that the electric driving part can be automatically stopped in time, the electric quantity waste is avoided, the manual operation of a user is not needed, and the user experience is further improved.

EXAMPLE five

The difference from the first embodiment is that: on the basis of the first embodiment, the contents of the third embodiment or the fourth embodiment are added. The principle is basically the same as the previous embodiment, and is not described herein again.

EXAMPLE six

The difference from the second embodiment is that: on the basis of the second embodiment, the contents of the third embodiment or the fourth embodiment are added. The principle is basically the same as the previous embodiment, and is not described herein again.

EXAMPLE seven

Further, in addition to any one of the third to sixth embodiments, the built-in power supply 52 is a rechargeable power supply.

The built-in power supply 52 is in the form of a rechargeable power supply, which is beneficial to reducing the replacement times of the built-in power supply 52, thereby improving the use experience of users. Of course, the internal power source 52 may also be a common power source, such as in the form of a battery.

Further, the built-in power supply 52 is electrically connected to a power supply system of the cooking appliance for connecting an external power supply, and is adapted to be charged by the power supply system when the cooking appliance is powered on, as shown in fig. 10.

The power supply system of the cooking appliance is used for being connected with an external power supply, the external power supply is used for providing electric energy for the product, the built-in power supply 52 is electrically connected with the power supply system, and under the condition of electrifying, the power supply system is used for charging the built-in power supply 52, so that the user does not need to repeatedly disassemble and assemble the built-in power supply 52, and the use experience of the user is further improved.

Further, the controller 6 of the cooking appliance is electrically connected to the built-in power supply 52 and the power supply system, and is configured to control the power supply system to charge the built-in power supply 52 when the cooking appliance is powered on.

The controller 6 is used for controlling the power supply system to charge the built-in power supply 52, so that reasonable charging is facilitated, normal cooking of a product cannot be influenced in the charging process, and the situations of insufficient charging or overcharging and the like of the built-in power supply 52 cannot be avoided, so that the use reliability of the product is further improved.

Further, the controller 6 is specifically configured to: the state of charge of the built-in power supply 52 is detected when the cooking appliance is powered on, and the power supply system is controlled to charge the built-in power supply 52 when the state of charge is an under-charged state, and the power supply system is controlled to stop charging the built-in power supply 52 when the state of charge is a full state.

Under the condition that the cooking appliance is powered on, the electric quantity state of the built-in power supply 52 is detected firstly, the power supply system is controlled to charge the built-in power supply 52 only under the condition that the electric quantity state is not fully charged, and the power supply system is controlled to stop charging in time when the electric quantity state is fully charged, so that the condition that the built-in power supply 52 is excessively charged is effectively prevented, the electric quantity waste is avoided, and the damage to the built-in power supply 52 is also prevented.

Further, the controller 6 is also configured to: detects whether the cooking appliance is powered off in the case where the cooking appliance is powered on, controls the built-in power supply 52 to supply power to the electric driver and controller 6 in the case where the cooking appliance is determined to be powered off, and controls the power supply system to charge the built-in power supply 52 in the case where the cooking appliance is determined to be powered on, as shown in fig. 10.

Under the condition that the cooking utensil is electrified, whether the cooking utensil is powered off or not is detected, and a reasonable basis can be provided for power supply or charging of the built-in power supply 52. Specifically, when the power failure is determined, the built-in power supply 52 is controlled to supply power to the electric driving part and the controller 6 so as to ensure that the pot cover 2 can be normally opened, when the power failure is determined not to exist, the electric driving part can normally control the locking device to reciprocate so as to ensure that the pot cover 2 can be normally opened and closed, and at the moment, the power supply system is controlled to charge the built-in power supply 52 without influencing the normal operation of the locking device.

Example eight

The difference from the seventh embodiment is that: the cooking appliance includes a charging switch (not shown) connected to the built-in power supply 52, and the power supply system charges the built-in power supply 52 when the cooking appliance is powered on and the charging switch is activated, and stops charging the built-in power supply 52 when the charging switch is activated again.

The charging switch is used for controlling the power supply system to charge or stop charging the built-in power supply 52, so that a user can conveniently control the charging start and stop of the built-in power supply 52 at any time according to the requirement under the condition of power-on, and different requirements of the user can be met. Such as: a user can trigger the charging switch when the power supply system is just powered on, or can trigger the charging switch after the product runs stably after the power supply system is powered on for a period of time, so that the power supply system charges the built-in power supply 52; the charging switch may be triggered again after a certain period of time to stop the power supply system from charging the built-in power supply 52 to prevent the working condition of the cooking appliance from being affected, or triggered again after the charging is completed to stop the power supply system from charging the built-in power supply 52 to prevent the built-in power supply 52 from being overcharged. The charging switch may be in the form of a button, a knob, a touch screen, or the like, and may further be provided with an electric quantity indicator lamp or a display screen for displaying the built-in power supply 52, so as to facilitate timely manual control by a user.

In any of the above embodiments, the locking device includes the lock catch 31 disposed on the pot cover 2 and the transmission mechanism connected to the lock catch 31, the transmission mechanism is connected to the electric driving member and is adapted to drive the lock catch 31 to reciprocate under the driving of the electric driving member, so that the lock catch 31 is locked with or disengaged from the pot body.

The locking device comprises a lock catch 31 and a transmission mechanism, the lock catch 31 is arranged on the cooker cover 2, so that the space inside the cooker cover 2 is conveniently and reasonably utilized, and the layout is reasonable; the lock catch 31 is locked with or separated from the pot body, so that the pot cover 2 is locked with or unlocked from the pot body; the transmission mechanism is positioned between the lock catch 31 and the electric driving piece, so that the movement forms of the electric driving piece, such as rotation movement, linear movement and the like, are conveniently converted into the movement forms of the adaptive lock catch 31, and then the form and the position of the lock catch 31 are reasonably designed according to the specific structure of a product, so that the structure and the performance of the product are optimized.

Specifically, the transmission mechanism includes a transmission plate 32, as shown in fig. 1 to 9, the transmission plate 32 is provided with a matching portion, the lock catch 31 includes a guiding portion, a connecting portion 312 and a locking portion 313 which are connected in sequence, the guiding portion is in sliding fit with the matching portion, as shown in fig. 1, 3, 6 and 8, the locking portion 313 is matched with the pot body, as shown in fig. 5; the driving plate 32 drives the lock catch 31 to reciprocate under the driving of the electric driving member, so that the guiding portion slides to and fro relative to the matching portion, and the locking portion 313 is locked with or separated from the pot body.

The transmission mechanism comprises a transmission plate 32, and the transmission plate 32 is relatively thin, so that the thickness of the pot cover 2 is favorably reduced, and the volume of the cooking appliance is further reduced; the lock catch 31 comprises a guide part, a connecting part 312 and a locking part 313, the guide part is in sliding fit with a matching part on the transmission plate 32, the transmission plate 32 is connected with the electric driving part, when the electric driving part drives the transmission plate 32 to reciprocate, the guide part of the lock catch 31 can slide along the matching part in a reciprocating mode, and then the locking part 313 is driven to reciprocate relative to the pot body, so that the locking or unlocking of the pot cover 2 and the pot body is realized, and the structure and the principle of the scheme are simple and easy to realize. Wherein, the guiding part can be in the form of a protrusion such as a guiding column 311, etc., as shown in fig. 5, and the matching part is in the form of a groove such as a sliding groove 321, etc., as shown in fig. 1, 3, 6 and 7; alternatively, the guide portion may be in the form of a groove such as a slide groove 321, and the engagement portion may be in the form of a projection such as a guide post 311.

Further, for the scheme that the electric driving member is the motor 41, the transmission mechanism further includes a gear 33 sleeved on the driving shaft and a rack 34 engaged with the gear 33, and the rack 34 is fixedly connected with the transmission plate 32, so as to drive the transmission plate 32 to move linearly.

Further, one end of the pot cover 2 is connected with one end of the pot body through a hinge, the hinge is sleeved with an uncovering torsion spring, the number of the latches 31 is two, the two latches 31 are symmetrically distributed in a mirror manner, the symmetric plane of the two latches 31 is perpendicular to the hinge axis of the hinge, and the number of the matching parts is equal to that of the latches 31 and corresponds to that of the latches 31 one by one, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 6, fig. 7, fig. 8 and fig. 9.

Hinge connection is passed through with the one end of the pot body to the one end of pot cover 2, and the hinge sleeve is equipped with the torsional spring that uncaps, then locking device moves when uncapping the position, under the effect of the torsional spring that uncaps, pot cover 2 can open automatically, and need not the manual opening of user to user's comfort level has further been improved. Of course, the lid-opening torsion spring may not be provided, and when the locker moves to the lid-opening position, the lid 2 and the pot body are unlocked, so that the user can easily open the lid 2.

Furthermore, the number of the lock catches 31 is two, the two lock catches 31 are symmetrically distributed on the mirror surface, and the symmetrical surfaces of the two lock catches 31 are perpendicular to the hinge axis of the hinge, so that the force balance of the cooker cover 2 is facilitated, the locking force of the cooker cover 2 and the cooker body is improved, and the stability of cover closing is improved; and the number of the matching parts is equal to that of the lock catches 31 and corresponds to that of the lock catches 31 one by one, so that the two lock catches 31 can normally reciprocate.

Specifically, the pot body comprises a main body 11 and an inner pot 12 sleeved in the main body 11, a locking gap 122 is formed between a pot edge 121 of the inner pot 12 and a top end edge of the main body 11, as shown in fig. 5, the lock catch 31 reciprocates along a radial direction of the inner pot 12, the locking portion 313 extends into the locking gap 122 to lock the pot cover 2 with the pot body, and the locking portion 313 extends out of the locking gap 122 to unlock the pot cover 2 with the pot body.

The locking portion 313 may be in the form of a tongue, as shown in fig. 5, and the connecting portion is in the form of a connecting plate, and is connected to the tongue by a bending extension, as shown in fig. 5.

In any of the above embodiments, optionally, the cooking appliance is a pressure cooking appliance.

The structure and the working principle of the cooking appliance provided by the present application are described below with reference to some specific examples.

A locking buckle buckling cooking utensil has the function of automatically opening a cover in power failure. Further, the latch buckling cooking utensil has a power-off latch automatic releasing function. Further, the latch fastening cooking appliance has a reset driving member for driving the latch 31 to be disengaged.

Alternatively, the reset actuator is a built-in power source 52, which can provide power to the electric actuator in case of power failure, so that the electric actuator performs the action of disengaging the latch 31.

Alternatively, the reset driving member is a reset spring, which can directly drive the latch 31 to perform the releasing action in case of power failure. The return spring may be a compression spring 51, a torsion spring, or other various springs.

Further, the control method of the cooking utensil with the function of automatically opening the cover after power failure comprises the steps of power failure detection, power supply of the built-in power supply 52, reset operation of the electric driving part (the lock catch 31 is disconnected), and power supply stop of the built-in power supply 52.

Further, the control method comprises a step of charging the built-in power supply 52, when the device is provided with an external power supply and works, the built-in power supply 52 can be charged, and the flushing can be automatically stopped after the device is fully charged.

Further, the control method, which detects power failure and charges the internal power source 52, may be performed after the appliance is powered on, or may be set at any stage during the cooking process.

Concrete example 1

As shown in fig. 1 to 5, a locking cooking utensil includes a main body 11, an inner pot 12, an upper cover (i.e., a pot cover 2), and a control panel (i.e., a controller 6). The upper cover is provided with an electric driving member, a latch 31, wherein the electric driving member is a motor 41. In addition, the locking and buckling cooking utensil is also provided with a reset driving part, and the reset driving part is a built-in power supply 52.

The buckling working process of the lock catch 31 is as follows: the control panel controls the motor 41 to rotate, so as to drive the transmission plate 32 to move, and the inclined rail (i.e. the sliding groove 321) on the transmission plate 32 drives the locking post (i.e. the guiding post 311) of the lock catch 31 to move, so as to drive the lock catch 31 to extend into the lower part of the pan edge 121 of the inner pan 12, thereby realizing the buckling of the inner pan 12. When the lock catch 31 needs to be disengaged, the control panel controls the motor 41 to rotate reversely, the transmission plate 32 is driven to move reversely, the inclined rail on the transmission plate 32 drives the lock catch column of the lock catch 31 to move reversely, and therefore the lock catch 31 is driven to be disengaged from the pot edge 121 of the inner pot 12, and the disengagement is achieved.

When the lock catch 31 of the utensil is suddenly powered off in a buckled state, the control panel borrows electricity from the reset driving piece (the built-in power supply 52), the procedure of releasing the lock catch 31 is directly executed, the control panel controls the motor 41 to rotate reversely to drive the transmission plate 32 to move reversely, the inclined track on the transmission plate 32 drives the lock catch column of the lock catch 31 to move reversely, so that the lock catch 31 is driven to be separated from the pot edge 121 of the inner pot 12, the control panel stops borrowing electricity, and the automatic releasing function of the lock catch 31 under the power-off condition is realized. Under the state, the automatic uncovering under the power-off condition can be realized by combining the action of the hinge spring. The hinge spring opening structure is mature in application on electric cooker appliances and is not explained.

Concrete example 2

As shown in fig. 6 to 9, a locking cooking utensil comprises a main body 11, an inner pot 12, an upper cover (i.e. a pot cover 2), and a control panel (i.e. a controller 6). The upper cover is provided with an electric driving part, a lock catch 31, wherein the electric driving part is an electromagnetic push rod 42. In addition, the locking and buckling cooking utensil is also provided with a reset driving part which is a compression spring 51.

The buckling working process of the lock catch 31 is as follows: the control panel controls the electromagnet to work, the iron core of the electromagnet extends out to drive the transmission plate 32 to move, the inclined rail (i.e. the sliding groove 321) on the transmission plate 32 drives the locking column (i.e. the guide column 311) of the lock catch 31 to move, so that the lock catch 31 is driven to extend into the lower part of the pot edge 121 of the inner pot 12, and the inner pot 12 is locked. When the lock catch 31 needs to be disengaged, the control panel controls the iron core of the electromagnet to contract to drive the transmission plate 32 to move reversely, and the inclined rail on the transmission plate 32 drives the lock catch column of the lock catch 31 to move reversely, so that the lock catch 31 is driven to be disengaged from the pot edge 121 of the inner pot 12, and the disengagement is realized.

When the lock catch 31 of the appliance is in a buckled state, the power is cut off suddenly, the iron core of the electromagnet cannot contract, the iron core is pushed to contract by the reset driving piece (the compression spring 51) to drive the transmission plate 32 to move reversely, the inclined rail on the transmission plate 32 drives the lock catch column of the lock catch 31 to move reversely, and therefore the lock catch 31 is driven to be separated from the pot edge 121 of the inner pot 12, and the release is realized.

In summary, the cooking utensil provided by the invention is additionally provided with the reset driving piece, the reset driving piece can be matched with at least one of the locking device and the electric driving piece (namely the locking device and/or the electric driving piece), and the locking device can move to the uncovering position under the condition of power failure of the cooking utensil, so that the locking device can still automatically move to the uncovering position even if the power failure occurs suddenly in the using process, normal unlocking between the pot cover and the pot body is ensured, the normal opening of the pot cover is further ensured, the trouble caused by the fact that the pot cover cannot be opened due to the power failure in the prior art is effectively solved, the use experience of users is improved, the market competitiveness of products is increased, and the market popularization of the products is facilitated.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooking appliance, comprising:

a pan body;

the pot cover is covered on the pot body;

the locking device is matched with the pot body and the pot cover and is suitable for reciprocating motion between a cover closing position for locking the pot body and the pot cover and a cover opening position for unlocking the pot body and the pot cover;

the electric driving part is connected with the locking device and is used for driving the locking device to reciprocate under the condition that the cooking utensil is electrified;

the resetting driving piece is matched with the locking device and/or the electric driving piece and is used for enabling the locking device to automatically move to the uncovering position under the condition that the cooking utensil is powered off so as to unlock the pot body and the pot cover;

the electric driving part is a motor, the reset driving part comprises a torsional spring, the torsional spring is matched with a driving shaft of the motor, the motor drives the locking device to move to the cover closing position, elastic deformation occurs in the cover closing position, so that the cooking utensil is driven by the reset elastic force of the locking device to rotate and reset the motor, and the motor drives the locking device to move to the cover opening position.

2. The cooking appliance of claim 1,

the electric driving part is an electromagnetic push rod, the reset driving part comprises a spring, the spring is matched with the electromagnetic push rod, the electromagnetic push rod drives the locking device to move to the cover closing position, elastic deformation occurs in the process, so that the cooking utensil is powered off, the reset elastic force of the locking device is utilized to drive the electromagnetic push rod to move and reset, and the electromagnetic push rod drives the locking device to move to the cover opening position.

3. The cooking appliance according to claim 1 or 2,

the reset driver includes an internal power source configured to: and supplying power to the electric driving piece under the condition that the cooking utensil is powered off, so that the electric driving piece moves and resets to drive the locking device to move to the uncovering position.

4. The cooking appliance of claim 3,

the controller of the cooking utensil is electrically connected with the electric driving piece and is suitable for controlling the electric driving piece;

the internal power supply is further configured to: and supplying power to the controller under the condition that the cooking appliance is powered off, so that the controller controls the electric driving piece to move and reset.

5. The cooking appliance of claim 4,

the built-in power supply or the controller is configured to: and under the condition that the controller controls the electric driving piece to move and reset, the built-in power supply stops supplying power to the electric driving piece and/or the controller, so that the electric driving piece stops running.

6. The cooking appliance of claim 3,

the cooking appliance includes a reset switch, the built-in power supply is configured to: powering the electric drive to reset the electric drive motion if the cooking appliance is de-energized and the reset switch is triggered.

7. The cooking appliance of claim 3,

the built-in power supply is a rechargeable power supply.

8. The cooking appliance of claim 7,

the built-in power supply is electrically connected with a power supply system of the cooking appliance for connecting an external power supply, and is suitable for being charged through the power supply system when the cooking appliance is electrified.

9. The cooking appliance of claim 8,

the controller of the cooking appliance is electrically connected with the built-in power supply and the power supply system and is used for controlling the power supply system to charge the built-in power supply when the cooking appliance is electrified.

10. The cooking appliance of claim 9,

the controller is specifically configured to: the method includes detecting a state of charge of the built-in power supply when the cooking appliance is powered on, controlling the power supply system to charge the built-in power supply when the state of charge is an unfilled state, and controlling the power supply system to stop charging the built-in power supply when the state of charge is a filled state.

11. The cooking appliance of claim 9,

the controller is further configured to: detecting whether the cooking appliance is powered off when the cooking appliance is powered on, controlling the built-in power supply to supply power to the electric driving part and the controller when the cooking appliance is determined to be powered off, and controlling the power supply system to charge the built-in power supply when the cooking appliance is determined to be powered on.

12. The cooking appliance of claim 8,

the cooking appliance includes a charging switch connected to the built-in power supply, and the power supply system charges the built-in power supply when the cooking appliance is powered on and the charging switch is activated, and stops charging the built-in power supply when the charging switch is activated again.

13. The cooking appliance according to claim 1 or 2,

the locking device comprises a lock catch arranged on the pot cover and a transmission mechanism connected with the lock catch, the transmission mechanism is connected with the electric driving piece and is suitable for driving the lock catch to reciprocate under the driving of the electric driving piece, so that the lock catch is locked with or separated from the pot body.

14. The cooking appliance of claim 13,

the transmission mechanism comprises a transmission plate, a matching part is arranged on the transmission plate, the lock catch comprises a guide part, a connecting part and a locking part which are sequentially connected, the guide part is in sliding fit with the matching part, and the locking part is matched with the pot body;

the transmission plate drives the lock catch to reciprocate under the driving of the electric driving piece, so that the guide part slides in a reciprocating manner relative to the matching part, and the locking part is locked with or separated from the pot body.

15. The cooking appliance of claim 14,

the pot cover is characterized in that one end of the pot cover is connected with one end of the pot body through a hinge, a cover opening torsion spring is sleeved on the hinge, the number of the lock catches is two, the lock catches are symmetrically distributed in a mirror mode and are two, the symmetrical surfaces of the lock catches are perpendicular to hinge shafts of the hinge, and the number of the matching portions is equal to the number of the lock catches and corresponds to the number of the lock catches one to one.