CN211186829U - Pressure control device, pot cover and cooking equipment - Google Patents

Abstract

The utility model provides a accuse is pressed device, pot cover and cooking equipment, accuse pressure device includes: the pressure control valve is provided with a first magnet, and the first magnet acts to enable the pressure control valve to switch the opening and closing states; and the second magnet is matched with the first magnet and is separated from the first magnet, when the coupling magnetic transmission in a magnetic attraction or repulsion mode is established between the second magnet and the first magnet, the second magnet triggers the first magnet to act so that the pressure control valve is switched to be in one of the open state and the closed state, and when the second magnet and the first magnet are released from the coupling magnetic transmission, the first magnet acts and causes the pressure control valve to be switched to be in the other of the open state and the closed state. The control device of the scheme can effectively separate the pressure control valve from the second magnet while realizing the driving of the first magnet to correspondingly control the opening and closing of the pressure control valve, thereby reducing the leakage risk and improving the working environment of devices inside the pot cover.

Description

Pressure control device, pot cover and cooking equipment

Technical Field

The utility model relates to an exhaust structure field particularly, relates to a accuse pressure equipment, a pot cover and cooking equipment.

Background

In order to obtain the best culinary art effect of rice, current cooking equipment need further regulate and control the atmospheric pressure of culinary art intracavity, present way sets up the accuse and presses the valve to carry out the pressure release and regulate and control the internal pressure, such structure need press the valve to trigger control accuse to the accuse and press the valve switching, in the current structure, utilize driver part to stretch into the accuse and press the valve to control, arouse sealed not tight problem easily, thus, can lead to cooking equipment's inside device to work under the environment of high temperature and high humidity, the life-span shortens, and break down easily, influence cooking equipment's performance.

SUMMERY OF THE UTILITY MODEL

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

Another object of the present invention is to provide a pot cover with the above pressure control device.

Still another object of the present invention is to provide a cooking apparatus having the above-mentioned pot cover.

In order to achieve the above object, an embodiment of the first aspect of the present invention provides a pressure control device, including: the pressure control valve is provided with a first magnet, and the first magnet acts to enable the pressure control valve to switch the opening and closing states; a second magnet fitted to the first magnet and separated from the first magnet, wherein when a coupling magnetic transmission in the form of magnetic attraction or repulsion is established between the second magnet and the first magnet, the second magnet triggers the first magnet to act so that the pressure control valve is switched to one of the open state and the closed state, and when the second magnet releases the coupling magnetic transmission with the first magnet, the first magnet acts and causes the pressure control valve to be switched to the other of the open state and the closed state.

The pressure control device provided by the above embodiment of the present invention, the pressure control valve is provided with the first magnet for controlling the switching of the opening and closing of the pressure control valve, and is further provided with the second magnet, so that the first magnet and the second magnet are separately provided, and the first magnet and the second magnet are coupled to transmit power in a form of magnetic force traction or magnetic force mutual exclusion, thereby realizing the non-contact driving of the second magnet to the first magnet, and correspondingly realizing the driving control of the opening and closing of the pressure control valve without contact, so that the exhaust part (such as the pressure control valve) and the driving part (such as the second magnet) of the product can be effectively separately distributed while realizing the driving of the first magnet to correspondingly control the opening and closing of the pressure control valve, and thus, since the driving part does not need to extend into the pressure control valve to drive, the leakage risk can be reduced, and the working environment of the internal devices of the pot cover can be improved, prevent that steam from corroding or influencing the inside device of pot cover, prolong the life-span of the inside device of pot cover, effectively guarantee cooking equipment's performance.

Additionally, the utility model provides an accuse in the above-mentioned embodiment is pressed the device and can also have following additional technical characterstic:

in the above technical scheme, the pressure control device includes an uncovering key, the uncovering key is configured to trigger the pot cover to open the pot cover and the pot body, and trigger the second magnet to drive the first magnet to act so as to control the pressure control valve to open.

In this scheme, control and open the lid and open via first magnet and second magnet transmission control pressure valve through setting up the key of uncapping, can realize that a key uncaps, save the operating procedure, and uncap through making the key of uncapping and trigger the control simultaneously and press the valve to open, can avoid uncapping and inhale the pot problem.

In any one of the above technical solutions, the second magnet has an electrical interface, wherein when an operating condition electrical parameter of the second magnet is greater than a preset value, the coupling magnetic transmission is established between the second magnet and the first magnet, and when the operating condition electrical parameter of the second magnet is lower than the preset value, the coupling magnetic transmission is released between the second magnet and the first magnet.

In this scheme, set up the second magnet and have the electrical interface, the electrical interface is used for supplying second magnet external circuit for the second magnet is according to the corresponding change of operating mode electrical parameter (also if the real-time current size of letting in the second magnet) magnetism that lets in, also is through the magnetic size of the operating mode electrical parameter control second magnet that lets in, and then through the magnetic size direct control second magnet and the coupling state between the first magnet. Therefore, when the working condition electrical parameter of the second magnet is higher than the preset value, the magnetism of the second magnet reaches a certain degree, and at the moment, the second magnet and the first magnet form mutual magnetic attraction or repulsion to drive the first magnet. When the working condition electrical parameter that the second magnet lets in reaches below the preset value, the magnetism of second magnet is less or non-magnetic, and the magnetic transmission that decouples between second magnet and the first magnet makes the accuse pressure valve can switch the reduction to first magnet drive no longer for the second magnet. The structure realizes the adjustment of the coupling magnetic transmission state of the first magnet through the control of the power-off or power-on of the second magnet, has the advantage of simple structure, does not need the movement of the second magnet, and can save the assembly space of the product.

In any one of the above technical solutions, the pressure control device includes an operating element, the operating element includes an operating portion and a response element configured to mate with the operating portion, the operating portion is configured to detect an operating action acting on the operating portion, and the operating portion triggers the response element according to the detected operating action, so that the response element sends out a corresponding detection signal to respond, wherein the pressure control device further includes a power supply element, the power supply element is electrically connected to the electrical interface and the response element, and the power supply element is configured to supply a corresponding current to the second magnet according to the detection signal from the response element; and/or the coupling magnetic transmission is established between the second magnet and the first magnet to trigger the first magnet to act, so that the pressure control valve is opened to respond, and the coupling magnetic transmission is released between the second magnet and the first magnet to trigger the first magnet to act, so that the pressure control valve is closed to respond.

In this scheme, set up the operating parts, when the user pressed or touched the operating parts of operating parts, response element fed back the detected signal in order to trigger the power supply element and supply corresponding electric current to the second magnet, like this, the second magnet produces the magnetic formation of corresponding size and the coupling response of first magnet according to the electric current size that supplies, can realize if, when the user pressed or touched the operating parts, corresponding control second magnet and the action of first magnet drive first magnet action of magnetic coupling make the pressure control valve open and carry out the pressure release, when the operating parts did not receive to press or touch the effect, the second magnet removed magnetic coupling with first magnet and made the pressure control valve close and form sealedly, control process is simple and convenient, the product has more convenience in use.

Coupling magnetic transmission between the second magnet and the first magnet is arranged to enable the pressure control valve to be opened to respond, and decoupling magnetic transmission between the second magnet and the first magnet enables the pressure control valve to be closed to respond. It can be understood that, utilize the electromagnetism push rod to stretch into the accuse pressure valve drive accuse pressure valve and open and carry out the pressure release among the correlation technique, to the condition of culinary art intracavity negative pressure state, if will realize the accuse pressure valve and open, the electromagnetism push rod needs great power could overcome the negative pressure suction of culinary art intracavity and makes the accuse pressure valve open, this leads to product cost to increase, and because electromagnetism push rod belongs to the electrical part, easy trouble under the environment of high temperature and high humidity, and the life-span shortens, lead to the unable guarantee of cooking equipment function. When the scheme adopts the second magnet to be introduced with current to enable working condition current parameters to reach the preset value, corresponding magnetic force is generated between the second magnet and the first magnet to attract or repel the first magnet, so that the first magnet is driven to overcome the negative pressure attraction in the cooking cavity under the working condition of negative pressure in the cooking cavity to open the pressure control valve, compared with the driving of the electromagnetic push rod to the pressure control valve, the first magnet is driven by a coupling magnetic transmission mode in the scheme, the driving is more efficient, the cost is reduced, the influence of overheating and overpower of the electromagnetic push rod can be avoided, in addition, the coupling magnetic transmission is utilized for driving, the physical contact between the second magnet and the pressure control valve is not needed, in this way, the driving purpose is realized, the isolation between the second magnet and the pressure control valve is more facilitated, the water vapor leakage risk is reduced compared with the related technology, and the working safety of internal electric appliance parts of the pot cover can be better guaranteed, Service life and reliability.

In any of the above technical solutions, the second magnet is movably disposed, and the movement of the second magnet has a first position and a second position, the second magnet establishes the coupling magnetic transmission with the first magnet at the first position, and releases the coupling magnetic transmission with the first magnet at the second position.

In this scheme, the second magnet activity sets up to through the second magnet activity with the mode control magnetic force size of adjusting second magnet and first magnet far and near, thereby corresponding control second magnet and the coupling state between the two of first magnet, specifically, make and establish coupling magnetic transmission between second magnet and the first magnet when the second magnet at first position, so that magnetic force is suitable for the first magnet of drive control pressure control valve to open or close, remove coupling magnetic transmission with first magnet at the second position, thereby correspondingly switch control to the open-closed state of pressure control valve, and has simple structure, control simple and convenient advantage.

And can understand that, utilize electromagnetic push rod to stretch into the accuse in the correlation technique and press valve drive accuse to press the valve to open and carry out the pressure release, to the condition of culinary art intracavity negative pressure state, if will realize that the accuse presses the valve to open, electromagnetic push rod needs great power could overcome the negative pressure suction of culinary art intracavity and makes the accuse press the valve to open, this leads to product cost to increase, and because electromagnetic push rod belongs to the electrical part, trouble easily under the environment of high temperature and high humidity, and the life-span shortens, lead to the unable guarantee of cooking equipment function. In the scheme, the driving force required by the opening and closing control of the control valve is from the magnetic attraction or repulsion between the first magnet and the second magnet, the external driving force only needs to control the second magnet to switch between the first position and the second position, compared with the related technology, the control of the negative pressure scene under which the pressure control valve is driven to open to exhaust and release the air by overcoming the negative pressure attraction can be realized only by using smaller driving force, the control operation is more labor-saving, and compared with the mode of adopting electric drive (such as an electromagnetic push rod), the influence of overheating, overpower and the like of the electromagnetic push rod can be avoided Service life and reliability.

In any one of the above technical solutions, the pressure control device further includes: the operating piece is configured to detect an operating action acting on the operating piece, and the operating piece triggers the second magnet to move from the second position to the first position according to the detected operating action, wherein the second magnet triggers the first magnet to act at the first position so that the pressure control valve is opened to respond, and the second magnet triggers the first magnet to act at the second position so that the pressure control valve is closed to respond.

In this scheme, set up the operating parts, when the user pressed or touched the operating parts's operating parts, operating parts drive second magnet from the second position to the first position motion to control pressure control valve is opened and is exhausted, and control process is simple and convenient, and the product more has the convenience in use.

In any of the above technical solutions, the operating element has an operating portion and a response element configured to mate with the operating portion, the operating portion is configured to detect an operating action acting on the operating portion, and the operating portion triggers the response element according to the detected operating action, so that the response element sends out a corresponding detection signal to respond, wherein the pressure control device further has a driving member, the driving member is mated with the second magnet, the driving member is electrically connected with the response element, and drives the second magnet to the first position according to the detection signal from the response element.

In this scheme, set up the operating parts and include the response element of operating part and supporting operating part for when the operating part was pressed or touched by the user, response element triggered driving piece control second magnet to first position with detecting signal, made the second magnet trigger the accuse at first position and pressed the valve and open, realized that electric control accuse presses the valve to open, and user operation is laborsaving more.

In any of the above technical solutions, the operating element is connected to the second magnet or connected to the second magnet via a transmission mechanism, and the operating element is configured to transmit a force from the operating motion to the second magnet and drive the second magnet to the first position.

In the scheme, the operating part is connected with the second magnet and drives the second magnet to move to the first position, so that the second magnet triggers the pressure control valve to open at the first position to form mechanical transmission connection between the operating part and the second magnet, the structure is simple, the cost is low, and it can be understood that in the structure, the first magnet is attracted or repelled by adopting the magnetic force between the second magnet and the first magnet, so that the first magnet is driven to overcome the negative pressure suction force in the cooking cavity to act to open the pressure control valve under the working condition of negative pressure in the cooking cavity, compared with the related technology that the pressure control valve is directly pushed by a push rod to open the pressure control valve to overcome the negative pressure suction force, a primary coupling magnetic force is established between the operating part and the pressure control valve, so that most of the acting force for overcoming the negative pressure suction force in the scheme can be shared by the magnetic force, and the requirement of external driving force is reduced, the second magnet is driven to move only by small driving force, so that the operation of a user is more labor-saving.

In any one of the above technical schemes, the operating part comprises an uncovering buckle plate, the uncovering buckle plate is movably arranged, the uncovering buckle plate moves to have an uncovering position, and the uncovering buckle plate drives the second magnet to the first position at the uncovering position.

It can be understood that the uncovering buckle is a switch component suitable for controlling the unlocking of the pot cover and the pot body, and the uncovering buckle is controlled to the uncovering position, so that the pot cover and the pot body are unlocked correspondingly, and the pot cover can be opened relative to the pot body after the unlocking.

In this scheme, set up the buckle of uncapping to uncapping position linkage second magnet to primary importance, can be so that the buckle of uncapping triggers pot cover and pot body unblock in the position of uncapping, trigger simultaneously and establish the coupling relation between second magnet and the primary magnet, so that the first magnet action of magnetic attraction drive between second magnet and the primary magnet is opened with corresponding control pressure control valve and is vented, then form like this when utilizing the buckle of uncapping to uncap, trigger the pressure control valve and open and carry out the pressure release, can realize uncapping like this, the pressure release is synchronous, thereby realize the one-key function of uncapping of product, prevent to uncap behind the buckle unblock because the suction pot leads to can't uncap or uncap the problem that is smooth and easy.

In any one of the above technical solutions, the pressure control device has a movable member, the second magnet is connected to the movable member or is formed as the movable member, wherein the movement of the cover opening buckle plate further has an initial position, and when the cover opening buckle plate is located at the initial position, the second magnet is located at the second position and a distance between the movable member and the cover opening buckle plate is 0mm to 5 mm.

In this scheme, set up the interval between moving part and the buckle of uncapping at 0mm ~ 5mm, like this, can compensate the motion displacement volume of second magnet with the activity displacement stroke volume of the buckle of uncapping more fully, thereby effectively extend the motion displacement volume of second magnet, make between first magnet and the second magnet establish coupling magnetic transmission and relieve the switching of coupling magnetic transmission more reliable, thereby ensure more accurately to the drive of first magnet, in order to control the switching of accuse pressure valve more accurately.

In any one of the above technical solutions, the pressure control device further includes: the elastic resetting piece is in linkage with the second magnet, wherein the second magnet is in linkage with the elastic resetting piece at the first position and enables the elastic resetting piece to be compressed, and the elastic resetting piece elastically returns to be in linkage with the second magnet and enables the second magnet to reach the second position.

In this scheme, set up elasticity piece that resets, make the second magnet reset at first position compression elasticity piece that resets and make elasticity piece deformation energy storage that resets, the elastic restoring force drive second magnet that utilizes elasticity piece that resets to the second position resets, correspondingly make the accuse press the valve to realize self-closing, and need not the user and drive the accuse manually and press the valve to close, prevent to forget to close the maloperation situation that the accuse pressed the valve, the control operation of product has also been simplified more simultaneously, further promote the use of product and experience.

In any one of the above technical solutions, the pressure control valve includes: the valve seat assembly is provided with a gas channel; and the ball body is positioned on the valve seat assembly and can move relative to the valve seat assembly to seal or open the gas channel, wherein the first magnet is arranged on the ball body or the first magnet is formed into the ball body.

In this scheme, it includes spheroid and valve seat subassembly to set up the accuse pressure valve, the spheroid is located valve seat subassembly and seals or opens the gas passage on the valve seat subassembly, can understand, the spheroid presses at valve seat subassembly through gravity, when the atmospheric pressure of culinary art intracavity is in certain extent, thereby the spheroid gravity can't be overcome to atmospheric pressure makes the spheroid can stabilize and realize maintaining sealed gas passage on valve seat subassembly, when the atmospheric pressure of culinary art intracavity is higher than this certain extent, the gas passage realization is discharged to the atmospheric pressure drive spheroid in the culinary art intracavity, automatic voltage limiting function has been realized.

Wherein, it is first magnet to be equipped with first magnet or spheroid on the spheroid, like this, but utilize opening and closing of the corresponding control gas passage of magnetic force drive spheroid motion between second magnet and the first magnet, realize the accuse and press the function, simultaneously, because drive with coupling magnetic transmission form between spheroid and the second magnet in this scheme, compare in the present scheme that adopts the push rod to promote spheroid, this scheme need not second magnet and spheroid contact or support and lean on, can reduce steam leakage risk like this, thereby can guarantee the work security of the inside electrical components of pot cover better, service life and reliability.

In any of the above technical solutions, the second magnet is located at a side of the sphere, and when the coupling magnetic transmission is established between the second magnet and the first magnet, the second magnet drives the sphere to move to the side and open the gas channel; and/or a guide slope is configured on the valve seat assembly, the ball rises along the guide slope to open the gas channel, and the ball falls along the guide slope to return to a position for closing the gas channel.

In the scheme, the second magnet is arranged at the side of the sphere to realize the transverse driving of the sphere, so that on one hand, the second magnet can transversely drive the sphere to move, so that the work on the gravity of the sphere is not required or the work on the gravity of the sphere is small, the requirement on the magnetic force in the coupling magnetic force transmission is reduced, the requirements on the volume design of the first magnet and the second magnet and the distance design between the first magnet and the second magnet are further relaxed, the control precision of a product can be further improved, on the other hand, under the negative pressure scene in the cooking cavity, the gas channel is transversely opened by driving the first magnet through the second magnet, the obstruction influence of the negative pressure suction force received when the gas channel is opened by the first magnet is smaller, the requirement on the magnetic force size in the coupling magnetic force transmission is further relaxed, the requirements on the volume design of the first magnet and the second magnet and the distance design between the first magnet and the second magnet are further relaxed, and the control precision of the product can be further improved.

In any one of the above technical solutions, the valve seat assembly includes a valve seat body and a sealing member disposed on the valve seat body, the sealing member is provided with a through hole, and the ball is pressed on the sealing member and adapted to open or seal the through hole.

In this scheme, the disk seat subassembly includes the sealing member, and the spheroid presses on the sealing member and sealed or open the through-hole of sealing member, like this, when culinary art intracavity negative pressure, the spheroid can compress tightly formation negative pressure self-tightening seal on the sealing member via the negative pressure to further promote the negative pressure seal reliability that the accuse pressed the valve.

In any one of the above technical solutions, the valve seat assembly further includes a movable part, at least part of the movable part is arranged in the through hole in a penetrating manner and along the through hole is movable, the movable part moves to have a floating position and a falling position, and the movable part is provided with a through matching hole, wherein the floating position jacks up the ball body, the ball body is matched with the matching hole to open and close the pressure control valve, and the falling position enables the ball body to press the sealing member and is matched with the through hole to open and close the pressure control valve.

In this scheme, set up the movable part, make the accuse press the valve can realize the sealed switching of malleation and negative pressure with the help of the movable part. When positive pressure exists in the cooking cavity (namely when the pressure in the cooking cavity is greater than the environment), the air pressure pushes the movable part to float upwards to jack the ball body, so that the ball body is matched with the matching hole to realize positive pressure sealing and pressure limiting functions, when negative pressure exists in the cooking cavity, the ball body presses the movable part downwards and abuts against the sealing element to seal the through hole in the sealing element to realize negative pressure sealing functions, and in addition, the ball body can be upwards supported to a certain extent by virtue of the upward resetting force of the movable part, the coupling connection is favorably established between the second magnet and the first magnet to drive the ball body to open the through hole, partial negative pressure suction force acting on the ball body is shared, so that the ball body is driven to open the through hole by utilizing smaller magnetic force, the requirement on the size of the magnetic force in the coupling magnetic force transmission is further reduced, and the design requirements on the volume design of the first magnet and the, and the control precision of the product can be further improved.

An embodiment of the second aspect of the present invention provides a pot cover, including: a cover body; the pressure control device in any one of the above technical solutions is disposed on the cover body.

The utility model discloses above-mentioned embodiment provides a pot cover, through being provided with among the above-mentioned arbitrary technical scheme accuse pressure equipment to have above-mentioned whole beneficial effect, no longer give unnecessary details here.

In addition, the utility model provides a pot lid in the above-mentioned embodiment can also have following additional technical characterstic:

in any one of the above technical solutions, a steam chamber is formed on the cover, at least a part of the pressure control valve of the pressure control device is located in the steam chamber, and the second magnet of the pressure control device is located outside the steam chamber.

In this scheme, set up the accuse and press the valve to be located the steam chamber, the second magnet is located the steam chamber outside for the accuse presses the valve exhaust steam to discharge along the outside passageway of connecting of steam chamber behind the steam chamber, can avoid steam to leak the steam chamber of pot cover outside like this, thereby can guarantee the work safety nature, life and the reliability of the inside electrical components of pot cover better.

An embodiment of the third aspect of the present invention provides a cooking apparatus, including: a pan body; in any of the above technical solutions, the lid is covered with the pot body and encloses a cooking cavity with the pot body, wherein a pressure control valve of the pressure control device is communicated with the cooking cavity, and the pressure control valve is opened to allow the cooking cavity to suck or exhaust air through the pressure control valve.

The utility model discloses the cooking equipment that above-mentioned embodiment provided, through being provided with among the above-mentioned arbitrary technical scheme the pot cover to have above-mentioned whole beneficial effect, no longer give consideration to here.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, 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 sectional view of a part of the structure of a pot cover according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the portion A shown in FIG. 1;

FIG. 3 is a schematic view of a portion of the structure of FIG. 1;

FIG. 4 is an enlarged partial schematic view of FIG. 3;

figure 5 is a structural schematic view of a part of the structure of the pot cover shown in figure 1 in another state;

FIG. 6 is an enlarged partial schematic view of FIG. 5;

figure 7 is a schematic top view of a portion of the lid shown in figure 1;

fig. 8 is a schematic sectional view of a part of the structure of the pot cover according to another embodiment of the present invention;

fig. 9 is a schematic cross-sectional view of a cooking apparatus according to an embodiment of the present invention;

fig. 10 is a schematic cross-sectional view of a part of a cooking apparatus according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 10 is:

100 pot covers, 110 pressure control valves, 111 valve seat components, 1111 valve seat bodies, 11111 guide inclined planes, 1112 sealing elements, 11121 through holes, 1113 pressing covers, 112 movable parts, 1121 matching holes, 113 springs, 114 valve covers, 115 clamping rings, 116 valve seat sealing rings, 120 first magnets, 130 second magnets, 1411 buttons, 1412 cover opening buckle plates, 1413 response elements, 142 movable parts, 143 elastic reset pieces, 150 cover bodies, 151 cover plates, 152 inner covers, 160 steam chambers, 170 air extraction systems, 171 air extraction devices, 172 air extraction pipes, 173 electromagnetic valves, 180 exhaust valves, 190 control devices, 210 pot bodies, 211 pot body assemblies, 212 heating elements, 213 inner pots, 214 cooking cavities, 217 temperature measurement devices and 218 power supply components.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. 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.

The following describes a pot cover and a cooking apparatus according to some embodiments of the present invention with reference to fig. 1 to 10.

Example 1:

as shown in fig. 1 to 8, the present embodiment provides a pressure control device including: a pressure control valve 110 and a second magnet 130.

Specifically, the pressure control valve 110 has an open state and a closed state. For example, as shown in fig. 4 and 6, the pressure control valve 110 is a ball pressure valve including a valve seat member 111 having a gas passage and a ball adapted to open and close the gas passage. For example, as shown in fig. 1, fig. 3 and fig. 4, the structure of the pressure control valve 110 in a closed state is schematically illustrated, in which a ball is located at a position blocking a gas passage to close the ball pressure valve; for example, fig. 5 and 6 are schematic structural diagrams of the pressure control valve 110 in an open state, in which a ball avoids at least part of a gas passage to open the ball pressure valve. The closed state may be understood as a state in which the ball blocks the gas passage, and the open state may be understood as a state in which the ball avoids at least part of the gas passage.

Wherein the pressure control valve 110 has a first magnet 120, and the first magnet 120 acts to switch the pressure control valve 110 between the open state and the closed state. For example, as shown in fig. 1, 3, 4, 5, and 6, the first magnet 120 may be understood as a sphere (the sphere is a magnetic conductor such as an iron ball), or may be understood as a magnetic conductive member provided on the sphere. By means of the action of the first magnet 120, the ball is correspondingly driven to act, so that the ball opens or closes the gas passage, and the pressure control valve 110 is switched between the open state and the closed state.

The second magnet 130 and the first magnet 120 are separated from each other, and the second magnet 130 is fitted to the first magnet 120, and the following fitting relationship is formed:

when the coupling magnetic transmission in the form of magnetic attraction or repulsion is established between the second magnet 130 and the first magnet 120, the second magnet 130 triggers the first magnet 120 to act, so that the pressure control valve 110 is switched to one of the open state and the closed state;

when the second magnet 130 is decoupled from the first magnet 120 in magnetic transmission, the first magnet 120 acts and causes the pressure control valve 110 to switch to the other of the open state and the closed state.

It should be noted that, the decoupling magnetic transmission is not particularly specified to that the magnetic force between the second magnet 130 and the first magnet 120 is completely lost or zero, but, compared to the case of establishing the coupling magnetic transmission between the second magnet 130 and the first magnet 120, the state that the magnetic force is switched from the state of establishing the coupling magnetic transmission to the state of decoupling magnetic transmission is reduced, and the state that the first magnet 120 is driven by the magnetic force when the coupling magnetic transmission is established is satisfied, and the state that the first magnet 120 is not driven by the magnetic force or the magnetic force when the coupling magnetic transmission is released.

Through the scheme, the first magnet 120 and the second magnet 130 are coupled and transmit power in a magnetic traction or magnetic mutual exclusion mode, so that the second magnet 130 drives the first magnet 120 in a non-contact manner, and correspondingly, the opening and closing of the pressure control valve are driven and controlled without contact, thus, while the purposes of driving the first magnet 120 and controlling the opening and closing of the pressure control valve correspondingly are realized, the exhaust part (such as the pressure control valve) and the driving part (such as the second magnet 130) of a product can be effectively and separately distributed, and thus, compared with a structure that an electromagnetic push rod extends into the pressure control valve 110 for driving, in the structure, the driving part does not need to extend into the pressure control valve 110, so that the leakage risk can be reduced, the working environment of devices inside the cooker cover 100 is improved, the corrosion of water vapor or the influence on the devices inside the cooker cover 100 is prevented, and the service life of the devices inside the cooker cover 100 is prolonged, the performance of the cooking equipment is effectively guaranteed.

Example 2:

in addition to the features of embodiment 1 described above, the present embodiment further defines: the pressure control device comprises an uncovering key which is configured to trigger the cooker cover to open the cooker cover and the cooker body, and trigger the second magnet to drive the first magnet to act so as to control the pressure control valve to open. Can realize that a key uncaps, save the operating procedure, and uncap the key and uncap and trigger the accuse simultaneously and press the valve to open through making, can avoid uncapping and inhale the pot problem.

Example 3:

as shown in fig. 8, in addition to the features of embodiment 1 described above, the present embodiment further defines: the second magnet 130 has an electrical interface, wherein when the operating electrical parameter of the second magnet 130 is above a predetermined value, the magnetic coupling transmission is established between the second magnet 130 and the first magnet 120, and when the operating electrical parameter of the second magnet 130 is below the predetermined value, the magnetic coupling transmission is released between the second magnet 130 and the first magnet 120.

It should be noted that the operating condition electrical parameter of the second magnet 130 may be a real-time current parameter of the second magnet 130, and the operating condition electrical parameter may be mainly determined by the magnitude of the current passed through the second magnet 130. The preset value is not a specific value, but a preset value according to requirements, for example, a person skilled in the art may comprehensively set specific values of the preset value according to a distance between the second magnet 130 and the first magnet 120, a magnetic attraction/repulsion force requirement for driving the first magnet 120, a coil number, and the like, where details of the preset value are not illustrated, the person skilled in the art may perform correlation determination based on different scenarios by an opening and closing response of the pressure control valve 110, for example, when the pressure control valve 110 is changed from closing to opening, a current value is applied to one second magnet 130, and the current value may be used as the preset value.

It can be understood that the second magnet 130 is provided with an electrical interface for supplying current to the second magnet 130, the second magnet 130 is an electromagnetic component whose magnetism changes correspondingly with the magnitude of the supplied current, the first magnet 120 is a permanent magnet, such as a magnet, the magnitude of the magnetism between the second magnet 130 and the first magnet 120 is controlled by controlling the magnitude of the supplied current to the second magnet 130, and the driving force for the first magnet 120 is further controlled by the magnitude of the magnetic force, so as to control the opening and closing of the pressure control valve 110. This compares in utilizing electromagnetic push rod to stretch into the correlation technique that pressure control valve 110 drive pressure control valve 110 opened and carry out the pressure release, under the circumstances of negative pressure in culinary art chamber 214, this structure can adopt magnetic force to overcome the motion of the first magnet 120 of negative pressure suction drive in culinary art chamber 214, compare in physical movements such as electromagnetic push rod the drive more high-efficient, and can avoid electromagnetic push rod overheated, influences such as overpower, and utilize coupling magnetic transmission to drive in this scheme need not second magnet 130 and pressure control valve 110 physical contact, and like this, when realizing the drive purpose, more do benefit to the isolation between second magnet 130 and the pressure control valve 110, compare correlation technique, reduce the steam leakage risk, thereby can guarantee the work safety of the inside electrical apparatus part of pot cover 100 better, life and reliability.

For example, as shown in fig. 8, the second magnet 130 is an electromagnetic coil, and both ends of a wire of the electromagnetic coil form an electrical interface for electrically connecting the electromagnetic coil to a power source or a power distributor, etc. The present embodiment is further explained by taking a power on/off control manner as an example:

when the electromagnetic coil is electrified through the electrical interface (which can be understood as the operating condition electrical parameter of the second magnetic body 130 reaching above the preset value), the electromagnetic coil generates magnetic (attracting/repelling) force to the first magnetic body 120 to establish coupling magnetic transmission, and drive to the first magnetic body 120 is realized. For example, the electromagnetic coil generates an attractive force to the first magnet 120 to pull the first magnet 120 to control the pressure control valve 110 to open or close, but in other embodiments, the electromagnetic coil generates a repulsive force to the first magnet 120 to push the first magnet 120 away, so as to open or close the pressure control valve 110.

When the electromagnetic coil is de-energized (it can be understood that the operating condition electrical parameter of the second magnet 130 is lower than the preset value), the electromagnetic coil does not generate magnetic (attracting/repelling) force or generates smaller magnetic force to the first magnet 120, so that the magnetic transmission is decoupled between the first magnet 120 and the second magnet 130, the first magnet 120 is not driven by the electromagnetic coil, and the state of the pressure control valve 110 is not switched.

The design has the advantage of simple structure, and the structure does not need the movement of the second magnet 130, so that the assembly space of the product can be saved.

Further, in the present embodiment, as shown in fig. 8, the second magnet 130 is fixedly disposed. The adjustment of the magnetic force between the second magnet 130 and the first magnet 120 is realized by switching on and off the second magnet 130 or controlling the power on/off of the second magnet 130, and the first magnet 120 is further driven to move by the magnetic force between the second magnet 130 and the first magnet 120, so as to correspondingly control the switching control of the opening/closing of the pressure control valve 110, wherein the second magnet 130 is fixed, so that the variable influencing the motion of the first magnet 120 is the current on/off of the second magnet 130, and is not influenced by the position change of the second magnet 130, and the opening/closing control precision of the pressure control valve 110 can be improved.

For example, the second magnet 130 may be provided in a fixed arrangement such as a snap fit, a screw lock fit, or the like.

Further, the pressure control device of the present embodiment further includes an operating member, the operating member includes an operating portion (specifically, refer to the button 1411 in fig. 8) and a response element 1413 associated with the operating portion, the operating portion is configured to detect an operating action applied to the operating portion, and the operating portion triggers the response element 1413 according to the detected operating action, so that the response element 1413 sends out a corresponding detection signal to respond, wherein the pressure control device further includes a power supply element, the power supply element is electrically connected to the electrical interface and the response element 1413, and the power supply element is configured to supply a corresponding current to the second magnet 130 according to the detection signal from the response element 1413.

For example, the power supply element may be a power supply circuit, and of course, in other embodiments, the power supply element may also be a built-in power supply.

The response element 1413 can be a microswitch, a sensor (specifically, a position actuator and the like), and the like, and the operation part can comprise a button 1411, wherein when the button 1411 is pressed, the microswitch/sensor is triggered, so that the microswitch/sensor sends out a corresponding detection signal to respond; when the button 1411 is not pressed, the micro switch/sensor does not send a detection signal.

Further, in the present embodiment, the magnetic transmission coupling between the second magnet 130 and the first magnet 120 triggers the first magnet 120 to act, so that the pressure control valve 110 is opened to respond, and the magnetic transmission decoupling between the second magnet 130 and the first magnet 120 triggers the first magnet 120 to act, so that the pressure control valve 110 is closed to respond.

Thus, when the operation part detects the operation action, the trigger response element 1413 sends out a detection signal, the detection signal is received by the power supply element and triggers the power supply element to supply power to the second magnet 130, the second magnet 130 is electrified to generate magnetic force for the first magnet 120 and drive the first magnet 120 to act, so that the pressure control valve 110 is opened, and a transmission chain for triggering the pressure control valve 110 to open by the operation action is formed.

When the operation unit does not detect the operation, the response element 1413 does not send a detection signal, the power supply element does not supply power to the second magnet 130 or the power supply amount is small, the second magnet 130 does not generate magnetic force or generates small magnetic force to the first magnet 120, and at this time, the first magnet 120 does not operate to close the pressure control valve 110, so that a static state in which the pressure control valve 110 is closed when the operation unit is not operated is formed.

Like this, the user's accessible presses the operating portion (of course, in other embodiments, according to the operating portion including condition such as touch-sensitive screen, touch spring, driving lever, knob, the operation action also can be correspondingly for touching, stirring, wrench movement etc.) control pressure control valve 110's switching, and the operation mode is simple and convenient, more has product convenience in use.

Further, as shown in fig. 8, the operation portion may further include an uncovering buckle 1412, the button 1411 is connected with the uncovering buckle 1412, at this time, the button 1411 serves as an uncovering key for one-key control of uncovering and control of opening of the pressure control valve 110, specifically, the button 1411 triggers the uncovering buckle 1412 to control unlocking of the pot cover 100 and the pot body 210 when pressed, when the button 1411 is not pressed, the uncovering buckle 1412 controls locking of the pot cover 100 and the pot body 210, so that uncovering and control of opening of the pressure control valve 110 for pressure relief can be controlled simultaneously when the button 1411 is pressed, uncovering and pressure relief can be achieved simultaneously, the problem of uncovering and pressure relief can be avoided, a one-key uncovering operation function can be achieved, and.

Example 4:

as shown in fig. 1 and 5, in addition to the features of embodiment 1 described above, the present embodiment further defines: the second magnet 130 is movably disposed, and the movement of the second magnet 130 has a first position and a second position, the second magnet 130 establishes a coupling magnetic transmission with the first magnet 120 at the first position, and decouples the magnetic transmission with the first magnet 120 at the second position.

For example, the second magnet 130 moves relative to the first magnet 120 to be close to or far from the first magnet 120, wherein, as shown in fig. 5, it is a schematic structural diagram of the second magnet 130 in the first position, at this time, the distance between the second magnet 130 and the first magnet 120 is closer than that when the second magnet 130 is in the second position, so that the coupling magnetic transmission is established due to the closer distance between the first magnet 120 and the second magnet 130, a certain magnetic force is generated between the first magnet 120 and the second magnet 130, and the magnetic force drives the first magnet 120 to move.

As shown in fig. 1, the second magnet 130 is in the second position, and in this case, the distance between the second magnet 130 and the first magnet 120 is farther than that when the second magnet 130 is in the first position, so that the magnetic transmission is decoupled due to the longer distance between the first magnet 120 and the second magnet 130, and the magnetic force between the first magnet 120 and the second magnet 130 is smaller or no magnetic force, and the first magnet 120 is not driven.

In the design, the magnetic force is controlled by adjusting the distance between the second magnet 130 and the first magnet 120 through the movement of the second magnet 130, and the driving force for the first magnet 120 is further controlled through the magnetic force, so that the opening and closing of the pressure control valve 110 are controlled. This compares in utilizing electromagnetic push rod to stretch into the correlation technique that pressure control valve 110 drive pressure control valve 110 opened and carry out the pressure release, under the circumstances of negative pressure in culinary art chamber 214, this structure can adopt magnetic force to overcome the motion of the first magnet 120 of negative pressure suction drive in culinary art chamber 214, compare in physical movements such as electromagnetic push rod the drive more high-efficient, and can avoid electromagnetic push rod overheated, influences such as overpower, and utilize coupling magnetic transmission to drive in this scheme need not second magnet 130 and pressure control valve 110 physical contact, and like this, when realizing the drive purpose, more do benefit to the isolation between second magnet 130 and the pressure control valve 110, compare correlation technique, reduce the steam leakage risk, thereby can guarantee the work safety of the inside electrical apparatus part of pot cover 100 better, life and reliability.

For example, the first magnet 120 and the second magnet 130 may both be permanent magnets, such as both magnets. Alternatively, one of the first and second magnets 120 and 130 is a permanent magnet, and the other is iron or the like adapted to magnetically attract or repel the permanent magnet. The method has the advantages of low cost, small electromagnetic interference, high control accuracy and the like. In addition, with such a structure, the variable affecting the motion of the first magnet 120 is the distance between the second magnet 130 and the first magnet 120, and is not affected by the change in the magnetic strength of the second magnet 130/the first magnet 120, so that the opening and closing control accuracy of the pressure control valve 110 can be improved.

Further, the pressure control device of the present embodiment further includes an operating element, specifically, the operating element is configured to detect an operating action acting on the operating element, and the operating element triggers the second magnet 130 to move from the second position to the first position according to the detected operating action, where the second magnet 130 triggers the first magnet 120 to act at the first position so that the pressure control valve 110 is opened and responds, and the second magnet 130 triggers the first magnet 120 to act at the second position so that the pressure control valve 110 is closed and responds. Thus, when a user presses or touches the operation part of the operation part, the operation part drives the second magnet 130 to move from the second position to the first position so as to control the pressure control valve 110 to open for exhausting, the control process is simple and convenient, and the product has more convenience in use.

A specific example of this embodiment is as follows:

the operating member has an operating portion (specifically, see the button 1411 in fig. 1 and 5) and a response element 1413 associated with the operating portion, the operating portion is configured to detect an operating action applied to the operating portion, and the operating portion triggers the response element 1413 according to the detected operating action, so that the response element 1413 sends out a corresponding detection signal to respond, wherein the pressure control device further has a driving member (not shown in the figure), the driving member is engaged with the second magnet 130, the driving member is electrically connected with the response element 1413, and drives the second magnet 130 to the first position according to the detection signal from the response element 1413.

For example, the response element 1413 may be a microswitch, a sensor or the like, the operation portion may include a button 1411 (or a knob) or other control keys, and when the button 1411 is pressed, the microswitch/sensor is triggered, so that the microswitch/sensor sends out a corresponding detection signal to respond; when the button 1411 is not pressed, the micro switch/sensor does not send a detection signal.

The driving member may be an electromagnetic push rod, a driving motor, or the like, and is triggered by the detection signal to drive the second magnet 130 to the first position, so that the second magnet 130 drives the first magnet 120 with magnetic force to control the opening of the pressure control valve 110. When the actuator is not triggered by the detection signal, the second magnet 130 is in the second position so as not to actuate the first magnet 120, so that the pressure control valve 110 may be maintained closed. Compared with the related technology that the electromagnetic push rod directly acts on the pressure control valve 110 to control the opening and closing of the pressure control valve 110, the driving piece in the structure drives the second magnet 130 to move in a displacement mode, the force which is really used for offsetting the negative pressure suction force of the first magnet 120 to drive the first magnet 120 to move is the magnetic force between the second magnet 130 and the first magnet 120, the structure achieves the purpose of controlling the pressure control valve 110, meanwhile, the problems that the driving piece is overheated or overloaded and the like due to overlarge driving load caused by the existence of the negative pressure suction force can be prevented, and the service life of product parts is prolonged. And through utilizing the driving piece to drive second magnet 130, realize that automatically controlled control pressure control valve 110 opens, user operation is laborsaving more, and form coupling magnetic transmission between first magnet 120 and the second magnet 130 in this design, need not to stretch into in the pressure control valve 110, more do benefit to electric steam between driving piece and the pressure control valve 110 and separate, improve the operational environment of the inside device of pot cover 100 (like the driving piece), prevent steam corrosion or influence the inside device of pot cover 100 (like the driving piece), the life-span of the inside device of extension pot cover 100 (like the driving piece), effectively guarantee cooking equipment's performance.

Further, the operating part further comprises an uncovering buckle 1412, the button 1411 is connected with the uncovering buckle 1412, at this time, the button 1411 serves as an uncovering key for one-key control of uncovering and control of opening of the pressure control valve 110, specifically, when the button 1411 is pressed, the uncovering buckle 1412 is triggered to an uncovering position to control unlocking of the pot cover 100 relative to the pot body 210 to achieve uncovering, and the micro switch/sensor is triggered, so that the micro switch/sensor sends out a detection signal to trigger the driving part to drive the pressure control valve 110 to be opened through transmission of the first magnet 120 and the second magnet 130, and one-key control of uncovering and pressure relief of the pressure control valve 110 are.

Specific example two of this embodiment:

as shown in fig. 1 and 5, an operating member is connected to the second magnet 130 or to the second magnet 130 via a transmission mechanism, the operating member being configured to transmit a force from an operating action to the second magnet 130 and to drive the second magnet 130 to the first position. Therefore, the mechanical transmission connection between the operating part and the second magnet 130 can be formed, the structure is simple, the cost is low, and it can be understood that the force of the operation action in the structure drives the second magnet 130 to move in a displacement manner, the force which is really used for offsetting the negative pressure attraction force of the first magnet 120 to drive the first magnet 120 to move is the magnetic force between the second magnet 130 and the first magnet 120, the structure can realize the control purpose of the pressure control valve 110, simultaneously can prevent the problem of overlarge driving load caused by the existence of the negative pressure attraction force, a user only needs to drive the second magnet 130 to move with smaller force, and the operation of the user is more labor-saving.

As shown in fig. 1, 5 and 7, the present embodiment further includes a door release 1412. It can be understood that the uncovering buckle 1412 is a switch component suitable for controlling the unlocking of the lid 100 and the pot body 210, and by controlling the uncovering buckle 1412 to the uncovering position, the lid 100 and the pot body 210 are unlocked correspondingly, so that the lid 100 can be opened relative to the pot body 210 after unlocking.

As shown in fig. 5, the door release buckle 1412 is movably disposed, and the movement of the door release buckle 1412 has a door release position, and the door release buckle 1412 drives the second magnet 130 to the first position at the door release position. Like this, uncap buckle 1412 when uncap position triggers the unblock of pot cover 100 and pot body 210, it establishes coupling magnetic transmission to trigger between second magnet 130 and the first magnet 120, so that the first magnet 120 action of magnetic attraction drive between second magnet 130 and the first magnet 120 is opened with corresponding control pressure control valve 110 and is discharged, then form like this when utilizing uncap buckle 1412 to uncap, it opens and carries out the pressure release to trigger pressure control valve 110, can realize uncap like this, the pressure release is synchronous, thereby realize the one key function of uncapping of product, prevent to uncap buckle 1412 unblock back because the suction pot leads to unable uncap or the problem that uncap is not smooth and easy, promote product convenience of use.

As shown in fig. 2, in more detail, the cover release plate 1412 is hinged to form a lever structure, the cover release plate 1412 has two opposite force arms, one of the force arms is matched with the operating part (e.g., the button 1411), the other force arm of the cover release plate 1412 is used for driving the second magnet 130, the operating action is applied to the operating part to correspondingly rotate the cover release plate 1412, and the cover release plate 1412 rotates to drive the second magnet 130 to the first position.

Further, the operating member further comprises a button 1411, the button 1411 is connected with the cover-opening buckle 1412, at this time, the button 1411 serves as a cover-opening key for one-key control of opening the cover and control of opening of the pressure control valve 110, specifically, when the button 1411 is pressed, the cover-opening buckle 1412 is triggered to the cover-opening position to control unlocking of the pot cover 100 relative to the pot body 210 to achieve cover opening, and the second magnet 130 is driven to the first position through the cover-opening buckle 1412, so that the second magnet 130 drives the first magnet 120 to act to further control the pressure control valve 110 to open for pressure relief, and one-key control of opening the cover and control of pressure relief of the pressure control valve.

As shown in fig. 1, 5 and 7, further, the pressure control device has a movable piece 142, the second magnet 130 is connected to the movable piece 142 or the second magnet 130 is formed into the movable piece 142, wherein the movement of the door release buckle 1412 further has an initial position, and as shown in fig. 2, when the door release buckle 1412 is located at the initial position, the second magnet 130 is located at the second position and the distance S between the movable piece 142 and the door release buckle 1412 is 0mm to 5 mm. More specifically, when the second magnet 130 is located at the second position, the distance S between the other arm of the door-opening buckle 1412 and the movable member 142 is 0mm to 5 mm. In this way, the movement displacement of the second magnet 130 can be compensated by more fully utilizing the movement displacement stroke of the uncapping buckle 1412, so that the movement displacement of the second magnet 130 is effectively expanded, the switching between the coupling magnetic transmission and the decoupling magnetic transmission established between the first magnet 120 and the second magnet 130 is more reliable, and the driving of the first magnet 120 is more accurate, so that the opening and closing of the pressure control valve 110 are more accurately controlled.

Further, when the cover release buckle 1412 is located at the initial position, the second magnet 130 is located at the second position and the distance S between the movable piece 142 and the cover release buckle 1412 is 1mm to 4 mm.

Further, when the door release buckle 1412 is located at the initial position, the second magnet 130 is located at the second position and the distance S between the movable member 142 and the door release buckle 1412 is 2mm to 3 mm.

Example 5:

as shown in fig. 1 and 5, in addition to the features of embodiment 3 described above, the present embodiment further defines: the pressure control device further includes an elastic restoring member 143, and the elastic restoring member 143 may be, for example, a spring 113, a spring plate, elastic rubber, or the like.

The elastic restoring member 143 is disposed in linkage with the second magnet 130, for example, one end of the elastic restoring member 143 is fixed (for example, the one end abuts against the cover 150 of the pot cover 100), and the other end abuts against the movable member 142 provided with the second magnet 130, so that the elastic restoring member 143 and the second magnet 130 form a linkage relationship.

The linkage relationship between the elastic restoring element 143 and the second magnet 130 is substantially as follows: as shown in fig. 5, the second magnet 130 is interlocked with the elastic restoring member 143 at the first position and causes the elastic restoring member 143 to compress, and as shown in fig. 1, the elastic restoring member 143 is elastically restored to be interlocked with the second magnet 130 and causes the second magnet 130 to be in the second position. Utilize elasticity energy storage and potential energy release of elasticity piece 143 that resets, can realize second magnet 130 automatic re-setting, like this, when second magnet 130 is not driven first magnet 120, avoid first magnet 120 to receive the magnetic force influence of second magnet 130 to realize making but the automatic shutdown of pressure control valve 110 reset, and need not the user and drive pressure control valve 110 manually and close, prevent to forget to close the maloperation situation of pressure control valve 110, the control operation of product has also been simplified more simultaneously, further promote the use experience of product.

Example 6:

as shown in fig. 4 and 6, in addition to the features of any of the above embodiments, the present embodiment specifically defines: the pressure control valve 110 includes a valve seat assembly 111 and a ball (see in particular the first magnet 120 in the drawings).

The valve seat assembly 111 is provided with a gas channel; the ball is located on the valve seat assembly 111 and is movable relative to the valve seat assembly 111 to seal or open the gas passage, wherein the first magnet 120 is disposed on the ball or the first magnet 120 is formed as a ball. It can be understood that the sphere is pressed on the valve seat assembly 111 through gravity, when the air pressure in the cooking cavity 214 is within a certain range, the air pressure cannot overcome the gravity of the sphere, so that the sphere can be stably maintained on the valve seat assembly 111 to maintain a sealed air channel, when the air pressure in the cooking cavity 214 is higher than the certain range, the air pressure in the cooking cavity 214 drives the sphere to open the air channel to achieve air exhaust, and the automatic pressure limiting function is achieved.

Wherein, be equipped with first magnet 120 on the spheroid or the spheroid is first magnet 120, like this, but utilize the opening and closing of magnetic drive spheroid motion corresponding control gas passage between second magnet 130 and the first magnet 120, realize the accuse pressure function, simultaneously, because drive with coupling magnetic transmission form between spheroid and the second magnet 130 in this scheme, compare in the present scheme that adopts the push rod to promote spheroid, this scheme need not second magnet 130 and spheroid contact or support by, can reduce steam leakage risk like this, thereby can guarantee the work security, life and the reliability of the inside electrical components of pot cover 100 better.

Further, as shown in fig. 1, 5 and 8, the second magnet 130 is located at the side of the sphere, and when the coupling magnetic transmission is established between the second magnet 130 and the first magnet 120, the second magnet 130 drives the sphere to move to the side and open the gas passage. Thus, the magnetic force of the second magnet 130 can drive the sphere approximately along the transverse direction, on one hand, the gravity of the sphere does not need to do work or the gravity of the sphere does little work, the requirement of the magnetic force in the coupling magnetic force transmission is reduced, this further relaxes the design requirements of the volume and the distance between the first magnet 120 and the second magnet 130, and can further improve the control accuracy of the product, and on the other hand, in the scenario of negative pressure in the cooking chamber 214, the first magnet 120 is driven by the second magnet 130 to open the gas passage laterally, thus, the first magnet 120 is less hindered by the negative pressure attraction force when the gas passage is opened, the magnetic force requirement in the coupling magnetic force transmission is further reduced, therefore, the design requirements of the volume and the distance between the first magnet 120 and the second magnet 130 are further relaxed, and the control precision of the product can be further improved.

As shown in fig. 4 and 6, the seat assembly 111 is further configured with a guiding slope 11111, and the ball ascends along the guiding slope 11111 to open the gas passage and descends along the guiding slope 11111 to return to a position closing the gas passage. The ball can automatically seal the gas channel downwards along the guide inclined plane 11111 under the condition that the ball is not dragged by the second magnet 130, manual control of a user is not needed, and the use is more convenient.

Example 7:

as shown in fig. 4 and 6, in addition to the features of any of the above embodiments, the present embodiment specifically defines: the valve seat assembly 111 includes a valve seat body 1111 and a sealing member 1112 disposed on the valve seat body 1111, the sealing member 1112 having a through hole 11121 provided thereon, and the gas passage of the valve seat assembly 111 including the through hole 11121, wherein the ball is pressed against the sealing member 1112 and adapted to open or seal the through hole 11121. Thus, when the pressure in the cooking cavity 214 is negative, the ball can be pressed on the sealing member 1112 through the negative pressure to form a negative self-tightening seal, thereby further improving the reliability of the negative pressure seal of the pressure control valve 110.

For example, the sealing element 1112 may be a rubber element or a silicone element, so that the sealing element 1112 is deformed more easily, and the sealing element 1112 is pressed by a ball to perform sealing, which may further improve the sealing reliability under the negative pressure condition.

For example, the valve seat body 1111 is a plastic part, and can play a better shaping and supporting effect.

As shown in fig. 4 and 6, the valve seat assembly 111 further includes a gland 1113, and the gland 1113 is connected to the valve seat body 1111 and compresses the sealing member 1112 to be fixed on the valve seat body 1111. The fixation between the seal 1112 and the valve seat body 1111 is facilitated, and the assembling strength between the seal 1112 and the valve seat body 1111 is made more reliable.

As shown in fig. 4 and 6, for example, one of the pressing cover 1113 and the valve seat body 1111 is provided with a snap, and the other is provided with a snap groove, and the pressing cover 1113 and the valve seat body 1111 are locked by the snap groove and the snap. Of course, in other embodiments, the seal 1112 may be configured to be screwed to the seat assembly 111.

As shown in fig. 4 and 6, the pressing cover 1113 is further provided with an avoiding hole, the sealing member 1112 has a central portion and a connecting edge disposed along the outer periphery of the central portion, the connecting edge is clamped between the pressing cover 1113 and the valve seat body 1111, the central portion is inserted into the avoiding hole, and the central portion is provided with a through hole 11121 therethrough. The pressing cover 1113 is provided with a guide slope 11111, and the guide slope 11111 is arranged around the periphery of the through hole 11121 and gradually rises from the periphery of the through hole 11121 in the radial direction.

Further, the valve seat body 1111 is used for connecting with the cover 150 of the pot lid 100, specifically, for connecting with the cover plate 151 of the cover 150. The valve seat assembly 111 further has a valve seat sealing ring 116, and the valve seat sealing ring 116 seals a gap between the valve seat body 1111 and the cover 150.

Further, the valve seat body 1111 is used for connecting with the cover body 150 of the pot lid 100, as shown in fig. 3 and 4, and is used for connecting with the cover plate 151 in the cover body 150. The valve seat assembly 111 further has a valve seat sealing ring 116, and the valve seat sealing ring 116 seals a gap between the valve seat body 1111 and the cover 150.

Further, as shown in fig. 3 and 4 in particular, the pressure control valve 110 further includes a valve cover 114, the valve cover 114 is covered on the outer side of the ball and seat assembly 111 for limiting the ball from separating from the seat assembly 111, wherein a snap ring 115 is disposed on the outer side of the valve cover 114, the snap ring 115 is sleeved on the valve cover 114 and fastens the valve cover 114 to the cover 150, and in particular, the snap ring 115 fastens the valve cover 114 to the cover plate 151 of the cover 150.

Example 8:

as shown in fig. 4 and 6, in addition to the features of any of the above embodiments, the present embodiment specifically defines: the valve seat assembly 111 further includes a movable member 112, at least a portion of the movable member 112 is disposed through the through hole 11121 and is movable along the through hole 11121, the movable member 112 has a floating position and a falling position, a through fitting hole 1121 is disposed on the movable member 112, and the gas passage of the valve seat assembly 111 includes the fitting hole 1121.

As shown in fig. 5 and 6, the movable member 112 is a schematic structural diagram of the floating position, in which the movable member 112 jacks the ball at the floating position, and the ball is engaged with the engaging hole 1121 to open and close the pressure control valve 110.

As shown in fig. 1, 3 and 4, the movable member 112 is in a falling position, in which the movable member 112 presses the ball against the sealing member 1112, and the opening and closing of the pressure control valve 110 are realized through the cooperation of the ball and the through hole 11121.

In this embodiment, the movable member 112 is provided, so that the pressure control valve 110 can realize the switching between the positive pressure sealing and the negative pressure sealing by means of the movable member 112. When the pressure in the cooking cavity 214 is positive (i.e. when the pressure in the cooking cavity 214 is greater than the ambient pressure), the air pressure pushes the movable member 112 to float upward to jack up the ball, so that the ball performs positive pressure sealing and pressure limiting functions by cooperating with the mating hole 1121, and when the pressure in the cooking cavity 214 is negative, the ball presses the movable member 112 downward and abuts against the sealing member 1112 to seal the through hole 11121 on the sealing member 1112, so as to perform negative pressure sealing function, wherein the ball can be supported upward to a certain extent by the upward resetting force of the movable member 112, which helps to share part of the negative pressure suction force acting on the ball when the coupling connection is established between the second magnet 130 and the first magnet 120 to drive the ball to open the through hole 11121, so as to achieve opening of the through hole 11121 by using a smaller magnetic force to drive the ball, which further reduces the size requirement of the magnetic force in the coupling magnetic force transmission, thereby further relaxing the design requirements of the volume and distance between the first magnet, and the control precision of the product can be further improved.

As shown in fig. 4 and 6, further, the valve seat assembly 111 has a spring 113, one end of the spring 113 abuts against the movable member 112, and the other end abuts against the valve seat body 1111, and the spring 113 presses the movable member 112 against the sealing member 1112 by an elastic force, thereby achieving stable assembly of the movable member 112. More specifically, the periphery of the movable member 112 is provided with a flange, the spring 113 abuts against the flange, and the movable member 112 in the floating position makes the flange abut against the part of the sealing member 1112 around the through hole 11121, so that the gap between the movable member 112 and the through hole 11121 is sealed, and air leakage from between the movable member 112 and the inner wall of the through hole 11121 is avoided.

In any of the above embodiments, as shown in fig. 1, 5 and 8, the pressure control device further comprises a vapor chamber 160, the pressure control valve 110 is at least partially located in the vapor chamber 160, and the second magnet 130 is located outside the vapor chamber 160.

Example 9:

as shown in fig. 1 to 8, the present embodiment provides a pot cover 100, including: the cover 150 and the pressure control device described in any of the above embodiments, the pressure control device is disposed on the cover 150.

The utility model discloses pot cover 100 that above-mentioned embodiment provided is through being provided with among the above-mentioned arbitrary technical scheme accuse pressure equipment to have above-mentioned whole beneficial effect, no longer describe here.

Example 10:

as shown in fig. 1, 5, 6 and 8, in addition to the features of any of the above embodiments, the present embodiment further defines: the cover 150 has a steam chamber 160 formed thereon, the pressure control valve 110 of the pressure control device is at least partially located in the steam chamber 160, and the second magnet 130 of the pressure control device is located outside the steam chamber 160. Therefore, the water vapor exhausted by the pressure control valve 110 is exhausted along the outward connected channel of the steam chamber 160 after passing through the steam chamber 160, so that the water vapor can be prevented from leaking out of the steam chamber 160 of the pot cover 100, and the working safety, the service life and the reliability of the electric appliance parts inside the pot cover 100 can be better ensured.

In more detail, the cover body 150 includes a cover plate 151/cover, and the cover body 150 further includes an inner cover 152 disposed on an upper side of the cover plate 151/cover, as shown in fig. 3, the pressure control valve 110 of the pressure control device is disposed on the cover plate 151/cover, as shown in fig. 1, 5 and 8, a groove with a downward opening is formed on the inner cover 152 and defines a steam chamber 160, a portion of the pressure control valve 110 extends into the groove, and a structure that a portion of the pressure control valve 110 is located in the steam chamber 160 is formed. The second magnet 130 is located outside the vapor chamber 160, and particularly outside the sidewalls of the vapor chamber 160. Second magnet 130 is fixed to inner cover 152 or movable relative to inner cover 152.

Example 11:

as shown in fig. 7, in addition to the features of any of the embodiments described above, the present embodiment further defines: the pot cover 100 further comprises an air extracting system 170, the air extracting system 170 comprises an air extracting device 171, an air extracting pipe 172, an electromagnetic valve 173 and the like, the air extracting device 171 can be an air extracting pump, one end of the air extracting pipe 172 is connected with the air extracting device 171, the other end of the air extracting pipe 172 is used for being communicated with the cooking cavity 214, and the electromagnetic valve 173 is connected in series with the air extracting pipe 172 and controls the on and off of the air extracting pipe 172.

Further, the pumping system 170 is disposed on the inner lid 152 and outside the steam chamber 160, and moisture in the air flow discharged from the pressure control valve 110 is prevented from contacting the pumping system 170 by the steam insulation function of the steam chamber 160.

Example 12:

as shown in fig. 10, in addition to the features of any of the embodiments described above, the present embodiment further defines: the pot cover 100 is further provided with a discharge valve 180, and the discharge valve 180 is configured to open or close the discharge hole of the cover body 150. So that the pot cover 100 can further exhaust air through the exhaust hole, thereby improving the reliability of the product.

Example 13:

as shown in fig. 9 and 10, the present embodiment provides a cooking apparatus including: pot body 210 and pot cover 100 described in any of the above technical solutions. Specifically, the cover 100 covers the pot body 210 and surrounds the pot body 210 to form a cooking cavity 214, wherein the pressure control valve 110 of the pressure control device is communicated with the cooking cavity 214, and the pressure control valve 110 is opened for the cooking cavity 214 to suck or exhaust air through the pressure control valve 110.

The utility model discloses cooking equipment that above-mentioned embodiment provided, through being provided with among the above-mentioned arbitrary technical scheme pot cover 100 to have above-mentioned all beneficial effects, no longer describe herein.

As shown in fig. 9, in more detail, the pot body 210 includes a pot body assembly 211 and an inner pot 213 positioned inside the pot body assembly 211, and the pot cover 100 covers the pot body assembly 211 and seals the inner pot 213, such that the pot cover 100 and the inner pot 213 enclose to define a cooking cavity 214.

As shown in fig. 9 and 10, the pot body 210 further includes a heating element 212, the heating element 212 is disposed on the pot body assembly 211 and is used for heating the inner pot 213, and the heating element 212 may be a heating plate, an electromagnetic coil, an electric heating film, or the like.

The specific embodiment is as follows:

as shown in fig. 1 to 10, the present embodiment provides a cooking device, which is specifically a vacuum pressure cooker, but the present invention is not limited thereto, and in other embodiments, the cooking device may be a pressure cooker, an electric stewpan, an electric steamer, or the like.

The cooking apparatus of the present embodiment includes: the cooker cover 100, the cooker body assembly 211, the inner cooker 213, the heating element 212, the power supply component 218, the control device 190, the pressure control device, the cover plate 151 and the temperature measuring device 217.

As shown in fig. 1 to 7 and fig. 9 and 10, the pressure control device forms a pressure relief mechanism to relieve the pressure in the cooking cavity 214 by exhausting air. The pressure control device is installed on the inner cover 152, and includes a movable member 142, an elastic restoring member 143, a second magnet 130, a first magnet 120, a pressure control valve 110, and the like. The second magnet 130 and the first magnet 120 are made of magnetic materials. The movable part 142 is a push rod movably installed on the inner cover 152, one end of the push rod is connected with a magnetic material (i.e. connected with the second magnet 130), and the distance S between the other end of the push rod and the protruding part of the cover-opening buckle plate 1412 satisfies the following conditions: s is more than or equal to 0 and less than or equal to 5 mm.

The pressure control valve 110 controls the working pressure in the cooker (i.e. in the cooking cavity 214) at a predetermined value (the predetermined value can be designed according to specific requirements), wherein the pressure ball (i.e. the ball body) of the control valve is preferably made of a magnetic conductive metal material.

When the cooker (in the cooking cavity 214) is in a vacuum negative pressure state, the pressure small ball and the small ball sealing ring (i.e. the sealing element 1112) are in contact sealing, the user needs to open the cover at the moment, the button 1411 is only needed to be pressed to drive the cover opening buckle plate 1412 to move, the protrusion arranged on the cover opening buckle plate 1412 drives the push rod of the pressure relief mechanism to approach the pressure control valve 110, the magnetic material connected to the end of the push rod is close to the small metal ball (i.e. the ball), the small metal ball is displaced by magnetic attraction, the small ball sealing ring is separated, and therefore pressure relief is achieved, and when the normal pressure is restored in the cooker.

Of course, the design is not limited to the above specific embodiment, in other specific embodiments, as shown in fig. 8, the pressure relief mechanism may also be designed to be composed of a sensor (i.e., the response element 1413) and a solenoid (i.e., the first magnet 120), when the user presses the lid-opening button 1411 to trigger the sensor, the control program sends an electrical signal to control the solenoid to be energized, so that the solenoid generates a magnetic attraction force to change the position of the metal ball (i.e., the first magnet 120), and the purpose of vacuum pressure relief can also be achieved.

To sum up, in the pressure control device, the pot cover and the cooking apparatus provided in this embodiment, the pressure control valve is provided with the first magnet for controlling the switching of the opening and closing of the pressure control valve, and is further provided with the second magnet, so that the first magnet and the second magnet are separately provided, and the first magnet and the second magnet are coupled and transmit power in a form of magnetic force traction or magnetic force repulsion, thereby realizing non-contact driving of the second magnet on the first magnet, and accordingly realizing driving control of the opening and closing of the pressure control valve without contact, so that while the purpose of driving the first magnet and correspondingly controlling the opening and closing of the pressure control valve is realized, the exhaust part (such as the pressure control valve) and the driving part (such as the second magnet) of the product can be effectively separately distributed, and thus, since the driving part does not need to extend into the pressure control valve for driving, the leakage risk can be reduced, the working environment of the internal devices of the pot cover is improved, water vapor corrosion or influence on the internal devices of the pot cover is prevented, the service life of the internal devices of the pot cover is prolonged, and the performance of cooking equipment is effectively guaranteed.

In the present application, the terms "first", "second", "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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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

In the description of the present specification, 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 (18)

1. A pressure control device, comprising:

the pressure control valve is provided with a first magnet, and the first magnet acts to enable the pressure control valve to switch the opening and closing states;

a second magnet fitted to the first magnet and separated from the first magnet, wherein when a coupling magnetic transmission in the form of magnetic attraction or repulsion is established between the second magnet and the first magnet, the second magnet triggers the first magnet to act so that the pressure control valve is switched to one of the open state and the closed state, and when the second magnet releases the coupling magnetic transmission with the first magnet, the first magnet acts and causes the pressure control valve to be switched to the other of the open state and the closed state.

2. Pressure control device according to claim 1,

the pressure control device comprises a cover opening key, the cover opening key is configured to trigger the pot cover to enable the pot cover and the pot body to be opened, and trigger the second magnet to enable the second magnet to drive the first magnet to act so as to control the pressure control valve to be opened.

3. Pressure control device according to claim 1,

the second magnet is provided with an electrical interface, wherein when the working condition electrical parameter of the second magnet is more than a preset value, the coupling magnetic transmission is established between the second magnet and the first magnet, and when the working condition electrical parameter of the second magnet is lower than the preset value, the coupling magnetic transmission is released between the second magnet and the first magnet.

4. A pressure control device according to claim 3,

the voltage control device is provided with an operating part and a response element matched with the operating part, the operating part is configured to detect operating actions acting on the operating part, and the operating part triggers the response element according to the detected operating actions so that the response element sends out corresponding detection signals to respond, wherein the voltage control device is further provided with a power supply element which is electrically connected with the electrical interface and the response element, and the power supply element is configured to supply corresponding current to the second magnet according to the detection signals from the response element; and/or

The coupling magnetic transmission is established between the second magnet and the first magnet to trigger the first magnet to act, so that the pressure control valve is opened to respond, and the coupling magnetic transmission is released between the second magnet and the first magnet to trigger the first magnet to act, so that the pressure control valve is closed to respond.

5. Pressure control device according to claim 1,

the second magnet is movably arranged, the movement of the second magnet is provided with a first position and a second position, the second magnet establishes the coupling magnetic transmission with the first magnet at the first position, and releases the coupling magnetic transmission with the first magnet at the second position.

6. The pressure control device of claim 5, further comprising:

the operating piece is configured to detect an operating action acting on the operating piece, and the operating piece triggers the second magnet to move from the second position to the first position according to the detected operating action, wherein the second magnet triggers the first magnet to act at the first position so that the pressure control valve is opened to respond, and the second magnet triggers the first magnet to act at the second position so that the pressure control valve is closed to respond.

7. The pressure control device of claim 6,

the operating part is provided with an operating part and a response element matched with the operating part, the operating part is configured to detect operating action acting on the operating part, the operating part triggers the response element according to the detected operating action, so that the response element sends out a corresponding detection signal to respond, and the pressure control device is further provided with a driving piece, the driving piece is matched with the second magnet, the driving piece is electrically connected with the response element, and the second magnet is driven to the first position according to the detection signal from the response element.

8. The pressure control device of claim 6,

the operating member is connected to the second magnet or connected to the second magnet via a transmission mechanism, and the operating member is configured to transmit a force from the operating action to the second magnet and drive the second magnet to the first position.

9. The pressure control device of claim 8,

the operating parts include the uncap buckle, uncap buckle activity sets up, just the motion of uncap buckle has the position of uncapping, the uncap buckle is in uncap position drive the second magnet extremely first position.

10. Pressure control device according to claim 9,

the pressure control device is provided with a moving piece, the second magnet is connected with the moving piece or is formed into the moving piece, the cover opening buckling plate moves to have an initial position, the cover opening buckling plate is located at the initial position, and the second magnet is located at the second position and the distance between the moving piece and the cover opening buckling plate is 0-5 mm.

11. The pressure control device according to any one of claims 5 to 10, further comprising:

the elastic resetting piece is in linkage with the second magnet, wherein the second magnet is in linkage with the elastic resetting piece at the first position and enables the elastic resetting piece to be compressed, and the elastic resetting piece elastically returns to be in linkage with the second magnet and enables the second magnet to reach the second position.

12. A pressure control device according to any one of claims 1 to 10, wherein the pressure control valve comprises:

the valve seat assembly is provided with a gas channel;

and the ball body is positioned on the valve seat assembly and can move relative to the valve seat assembly to seal or open the gas channel, wherein the first magnet is arranged on the ball body or the first magnet is formed into the ball body.

13. Pressure control device according to claim 12,

the second magnet is positioned at the side of the sphere, and when the coupling magnetic transmission is established between the second magnet and the first magnet, the second magnet drives the sphere to move towards the side and open the gas channel; and/or

The seat assembly is configured with a guide ramp along which the ball rises to open the gas passage and along which the ball falls back to a position closing the gas passage.

14. Pressure control device according to claim 12,

the valve seat assembly comprises a valve seat body and a sealing element arranged on the valve seat body, a through hole is formed in the sealing element, and the ball body is pressed on the sealing element and is suitable for opening or sealing the through hole.

15. The pressure control device of claim 14,

the valve seat assembly further comprises a movable part, at least part of the movable part is arranged in the through hole in a penetrating mode and along the through hole is movable, the movable part moves to have a floating position and a falling position, a matching hole penetrating through is formed in the movable part, the movable part jacks up the floating position, the ball body is matched with the matching hole to achieve opening and closing of the pressure control valve, the movable part enables the falling position to enable the ball body to press the sealing part, and the ball body is matched with the through hole to achieve opening and closing of the pressure control valve.

16. A pot lid, comprising:

a cover body;

a pressure control device as claimed in any one of claims 1 to 15, provided on the cover.

17. The lid for a pot of claim 16,

the cover body is provided with a steam chamber, at least part of a pressure control valve of the pressure control device is positioned in the steam chamber, and a second magnet of the pressure control device is positioned outside the steam chamber.

18. A cooking apparatus, characterized by comprising:

a pan body;

the pot cover of claim 16 or 17, which is closed with the pot body and encloses a cooking cavity with the pot body, wherein the pressure control valve of the pressure control device is communicated with the cooking cavity, and the pressure control valve is opened for the cooking cavity to suck or exhaust air through the pressure control valve.

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