CN208784355U - Cooking apparatus - Google Patents

Abstract

The utility model discloses a kind of cooking apparatus, cooking apparatus includes: pot body, and pot body has cooking cavity；Lid, lid have aspirating hole, relief hole；Air extractor, air extractor are connected to will form negative pressure in cooking cavity with aspirating hole；Pressure relief device, pressure relief device includes the seal assembly and driving assembly being located at relief hole, seal assembly includes closeouts movable along the longitudinal, it is used to open and blocks relief hole, driving assembly is located at the top of seal assembly and including driving portion movable along the longitudinal, driving portion for driving closeouts mobile, do not open simultaneously with air extractor by pressure relief device；For control cooking apparatus culinary art mode control device, control device respectively with air extractor and pressure relief device communication connection.According to the cooking apparatus of the utility model embodiment, food spoilage can be prevented, improves culinary art mouthfeel, while cost is relatively low.

Description

Cooking apparatus

Technical field

The utility model relates to living electric apparatus technical fields, in particular to a kind of cooking apparatus.

Background technique

There are bottom and the water suctions of the rice on upper layer and heating in cooking rice for existing electric cooker unevenly, leads to rice or more The soft or hard mouthfeel of layer is inconsistent.The electric cooker with reservation protocol in the related technology, when food materials are long in the state of normal temperature and pressure Between store, will lead to the food spoilage of culinary art, unhealthful, special meat food materials are to be easier to become under summer sultry temperature Matter influences to cook mouthfeel.

Further more, the electric cooker with pressure in the related technology, pot inner pressure can be controlled in barotropic state, pass through boiling The pressure control in stage achievees the effect that pressure bumping stirs, to improve cooked rice quality.Document CN200710003467.1 is disclosed A kind of electric cooker with decompressor can reduce air pressure in pot in standby and holding stage of cooking.However, both have The components of the electric cooker of pressure are more, and structure is complicated, with high costs.Accordingly, there exist rooms for improvement.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions A kind of cooking apparatus out, the cooking apparatus performance is good, and structure is simple, at low cost.

According to the cooking apparatus of the utility model embodiment, comprising: pot body, the pot body have the open culinary art in top Chamber；Lid, the lid are movably installed between open and closed positions to the pot body, and the lid, which has, to be taken out Stomata, relief hole；Air extractor, the air extractor are connected to will form negative pressure in the cooking cavity with the aspirating hole；It lets out Pressure device, the pressure relief device include the seal assembly and driving assembly being located at the relief hole, and the seal assembly includes Closeouts movable along the longitudinal, are used to open and block the relief hole, and the driving component is located at the seal assembly Top and including along the longitudinally moveable driving portion, the driving portion is for driving the closeouts mobile, the pressure release Device is not opened simultaneously with the air extractor；For controlling the control device of the cooking apparatus culinary art mode, the control Device respectively with the air extractor and the pressure relief device communication connection.

Led to according to the cooking apparatus of the utility model embodiment by setting pressure relief device, air extractor and control device Control device control pressure relief device and air extractor work are crossed, the alternating variation that positive pressure or negative pressure may be implemented in cooking cavity is made, To prevent food in prolonged reservation protocol mesometamorphism, keeps food heated with uniform water absorption, improve culinary art mouthfeel, simultaneously The quantity of components is simplified, structure is simple, reduces the cost of cooking apparatus.

According to the cooking apparatus of the utility model embodiment, the air extractor is Miniature diaphragm pump, the miniature diaphragm Pump is connected to by connecting tube with the aspirating hole.

According to the cooking apparatus of the utility model embodiment, electromagnetism is equipped between the air extractor and the aspirating hole Valve, for controlling the on-off of the gas circuit between the air extractor and the aspirating hole.

Further, the solenoid valve includes: valve seat, and the valve seat has airflow channel, the import of the airflow channel Suitable for being connected to the aspirating hole, the outlet of the airflow channel is suitable for being connected to the air extractor；Valve body, the valve sheet Body has moveable part, for being connected to or disconnecting the inlet and outlet of the airflow channel.

Optionally, first seal is equipped at the aspirating hole, for being tightly connected with the solenoid valve.

According to the cooking apparatus of the utility model embodiment, the driving component further includes electromagnet and by the electromagnet The electromagnet push-rod of driving, the electromagnet push-rod are connect with the driving portion.

Further, the end of the electromagnet push-rod has retaining part, and the driving component further includes return springs, The both ends of the return springs are only supported with the retaining part and the electromagnet connect respectively.

According to the cooking apparatus of the utility model embodiment, the pressure relief device further include: pressure control elastic component, the pressure control The both ends of elastic component are only supported with the closeouts with the driving portion connect respectively.

According to the cooking apparatus of the utility model embodiment, the seal assembly further include: second seal, described second Sealing element is connect with the closeouts, is used to open and blocks the relief hole.

Further, the seal assembly further include: ring compression part, the ring compression part are adapted to be mounted to the lid Body and the top for being located at the relief hole, the middle part of the second seal are connect with the bottom of the closeouts, and described second The outer peripheral edge of sealing element is located between the lid and the ring compression part.

The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:

Fig. 1 is the structural schematic diagram according to the cooking apparatus of the utility model embodiment；

Fig. 2 is the enlarged drawing of A structure in Fig. 1；

Fig. 3 is the layout according to the air extractor, pressure relief device of the utility model one embodiment on lid；

Fig. 4 is the layout according to the air extractor, pressure relief device of another embodiment of the utility model on lid；

Fig. 5 is the enlarged drawing of B structure in Fig. 4；

Fig. 6 is the control method flow chart according to the cooking apparatus of the utility model embodiment；

Fig. 7 is the working state figure according to the cooking apparatus different phase of the utility model embodiment.

Appended drawing reference:

Cooking apparatus 100,

Pot body 10, cooking cavity 11,

Lid 20, relief hole 21, aspirating hole 22, gas vent 23, first seal 24, connecting tube 25,

Pressure relief device 30,

Seal assembly 31,

Ring compression part 311, circular passage 3110, the first convex ribs 3112, the second convex ribs 3113,

Pressure control elastic component 312,

Second seal 313, movable part 3131, card slot 31311, fixed part 3132, annular seal groove 31321,

Closeouts 314, clamp 3141,

Driving assembly 32, driving portion 321, channel 3211, electromagnet 322, electromagnet push-rod 323, retaining part 3231 reset Elastic component 324,

Air extractor 40,

Solenoid valve 60, valve seat 61, valve body 62.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model System.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

Below with reference to Fig. 1-Fig. 7 description according to the cooking apparatus 100 of the utility model embodiment.

As shown in Fig. 1-Fig. 7, the cooking apparatus 100 according to the utility model one embodiment includes: pot body 10, lid 20, pressure relief device 30, air extractor 40 and control device (not shown).

Pot body 10 has the open cooking cavity 11 in top, and lid 20 is mounted in pot body 10, and lid 20 can be in open position It is movable between closed position to set, and lid 20 has aspirating hole 22 and relief hole 21.

Air extractor 40 is connected to aspirating hole 22, so as to form negative pressure in cooking cavity 11.Pressure relief device 30 includes: Seal assembly 31 and driving assembly 32.Seal assembly 31 is arranged at relief hole 21, and seal assembly 31 includes closeouts 314, envelope Blocking piece 314 (up and down direction as shown in Figure 1) can move along longitudinal direction, be used to open and block relief hole 21.Driving assembly 32 The top of seal assembly 31 is set, and driving assembly includes driving portion 321, and driving portion 321 can be (as shown in Figure 1 along longitudinal direction Up and down direction) it is mobile, for driving closeouts 314 to move up and down.

Wherein, pressure relief device 30 is not opened simultaneously with air extractor 40, i.e., when air extractor 40 is opened, pressure relief device 30 It closes, to allow air extractor 40 that will form negative pressure in cooking cavity 11；When pressure relief device 30 is opened, air extractor 40 is closed It closes, stops to being evacuated in cooking cavity 11, cooking cavity 11 and the external world are connected, so that the air pressure in cooking cavity 11 be made to be restored to normal pressure shape State.Control device is used to control the culinary art mode of cooking apparatus 100, control device respectively with air extractor 40 and pressure relief device 30 Communication connection.

According to the cooking apparatus 100 of the utility model embodiment, pass through setting pressure relief device 30, air extractor 40 and control Device, control device can control pressure relief device 30 and air extractor 40 works, and make that positive pressure or negative may be implemented in cooking cavity 11 The alternating of pressure changes, to prevent food in prolonged reservation protocol mesometamorphism, keeps food heated with uniform water absorption, improves Mouthfeel is cooked, while simplifying the quantity of components, structure is simple, reduces the cost of cooking apparatus 100.

One embodiment according to the present utility model, air extractor 40 are Miniature diaphragm pump, and structure is simple, easy to control. Miniature diaphragm pump is connected to by connecting tube 25 with aspirating hole 22.When cooking apparatus 11 needs for the air pressure drop in cooking cavity 11 to be negative When pressure, control Miniature diaphragm pump is started to work, to being evacuated in cooking cavity 11, so that negative pressure shape will be formed in cooking cavity 11 State.

One embodiment according to the present utility model is equipped with solenoid valve 60, electromagnetism between air extractor 40 and aspirating hole 22 Valve 60 is used to control the on-off of the gas circuit between air extractor 40 and aspirating hole 22.

In some instances, when solenoid valve 60 is powered, aspirating hole 22 is opened, air extractor 40 can pass through aspirating hole 22 To being evacuated in cooking cavity 11, so as to form negative pressure in cooking cavity 11；When solenoid valve 60 powers off, aspirating hole 22 is blocked.When So, solenoid valve 60, which is powered, is not limited to above-described embodiment with state when power-off, for example, solenoid valve 60 can also block pumping when being powered Stomata 22 opens aspirating hole 22 when solenoid valve 60 powers off.

As shown in figure 4, one embodiment according to the present utility model, solenoid valve 60 includes: valve seat 61 and valve body 62.Valve Seat 61 has airflow channel, and the import of airflow channel is connected with aspirating hole 22, and the outlet of airflow channel and air extractor 40 connect It is logical, so that air extractor 40 is connected to by airflow channel with aspirating hole 22.Valve body 62 has moveable part, passes through work The mobile connection of moving part or the inlet and outlet for disconnecting airflow channel, to control the gas between aspirating hole 22 and air extractor 40 The on-off on road.

One embodiment according to the present utility model, first seal 24 is equipped at aspirating hole 22, and first seal 24 will Aspirating hole 22 and solenoid valve 60 are tightly connected, to guarantee the leakproofness of the gas circuit between solenoid valve 60 and aspirating hole.

As shown in Figure 2 and Figure 4, an example according to the present utility model, driving assembly 32 further include electromagnet 322 and electricity Magnet push rod 323, electromagnet push-rod 323 are driven by electromagnet 322, and electromagnet push-rod 323 is connect with driving portion 321, thus By the energization and power-off of control electromagnet 322, the movement of driving portion 321 can control, thus drive closure part 314 mobile, And then open or block relief hole 21.

As shown in Fig. 2, in some instances, electromagnet push-rod 323 can be clamped with driving portion 321 and connect.Specifically, electric The lower end of 323 side wall of magnet push rod has the annular recess being recessed inwardly, and driving portion 321 can be connected in annular recess, To make electromagnet push-rod 323 be fixedly connected with driving portion 321.

As shown in figure 5, there is threaded hole, one end of electromagnet push-rod 323 is (such as on driving portion 321 in other examples Lower end shown in fig. 5) there is screw thread, electromagnet push-rod 323 is connect with driving portion 321 by being threadedly engaged, and structure is simple, connection It is convenient.

Certainly, driving portion 321 also can have threaded cylindrical, have threaded hole, driving portion 321 on electromagnet push-rod 323 Threaded cylindrical be mounted in threaded hole, the height and position of driving portion 321 can also be adjusted by screw thread rotation.

As shown in figure 5, in some instances, the end (upper end end as shown in Figure 5) of electromagnet push-rod 323 has only Support 3231, driving assembly 32 further include return springs 324, and one end of return springs 324 and retaining part 3231 are only to company It connects, the other end and electromagnet 322 of return springs 324 only support connection.When electromagnet push-rod 323 is moved relative to electromagnet 322 When dynamic, deformation occurs for return springs 324.

In some specific examples, return springs 324 are spring, and spring is set on electromagnet push-rod 323.It resets Elastic component 324 can play buffer function to the movement of electromagnet push-rod 323, after electromagnet 321 powers off, electromagnet push-rod 323 can be mobile by the elastic force of return springs 324.

In further example, pressure relief device 30 further includes pressure control elastic component 312, the both ends point of pressure control elastic component 312 Connection is not only supported with closeouts 314 and driving portion 321.Pressure control elastic component 312 can play buffering to the movement of closeouts 314 The problem of acting on, while can leading to poor sealing to avoid rigging error, avoids the occurrence of the case where blocking.Also, by logical Pressure control elastic component 312 is set in road 3211, can be overcome when pressure relief device 30 fails by the air pressure in cooking cavity 11 The elastic force of pressure control elastic component 312 and open relief hole 21, realize pressure release, play the role of safeguard protection to cooking apparatus 100, protect Demonstrate,prove the normal work of cooking apparatus 100.

Optionally, seal assembly 31 further includes second seal 313, and second seal 313 is connect with closeouts 314, the Two sealing elements 313 are used to open and block relief hole 21.Second seal 313 can be flexible seals, pass through flexible sealing The leakproofness to relief hole 21 can be improved in part.

In some instances, seal assembly 31 further includes ring compression part 311, and ring compression part 311, which may be mounted at, to be cooked It prepares food on the lid 20 of utensil 100, and ring compression part 311 is located at the top of relief hole 21, the outer peripheral edge of second seal 313 is close Envelope is connected to the bottom of ring compression part 311, and is located between lid 20 and ring compression part 311, to ensure that sealing Property.

Further, the middle part of second seal 313 is connect with closeouts 314, to make the middle part of second seal 313 Can be mobile with closeouts 314, to open and block relief hole 21.

As shown in Figure 4 and Figure 5, in some specific examples, second seal 313 includes: movable part 3131 and fixes Portion 3132, the middle part of movable part 3131 have card slot 31311, and the lower end side peripheral wall of closeouts 314 has annular groove, to block The lower end of part 314 forms clamp 3141, and card slot 31311 and the clamping of clamp 3141 connect.

The surface of relief hole 21 has annular brace muscle, has annular seal groove 31321, annular branch on fixed part 3132 It supports muscle and the clamping of annular seal groove 31321 connects.The outer peripheral edge of fixed part 3132 is pressed on annular by ring compression part 311 simultaneously The upper surface of supporting rib.Preferably, the upper surface of annular brace muscle is equipped with retention bead, increases annular brace muscle and fixed part Frictional force between 3132.

In some specific examples, also there is installing port on lid 10, the installing port is limited by the annular brace muscle It makes, ring compression part 311 is arranged at installing port, and the installing port is limited by the annular brace muscle, ring compression part There is circular passage 3110, circular passage 3110 extends along the center line of relief hole 21, the periphery of second seal 313 in 311 Edge is connected between the outer peripheral edge of installing port and ring compression part 311, and closeouts 314 are movably disposed at circular passage 3110 Interior, closeouts 314 are connect with the middle part of second seal 313, and driving assembly 32 is connect with closeouts 314, are blocked for driving Part 314 is mobile, to open and block relief hole 21.

Further, driving assembly 32 is pressed on the top of ring compression part 311, to make 32 pairs of annular pressures of driving assembly Tight part 311 generates certain pressure, compresses annular compressing member 311 using driving assembly 32, presses ring compression part 311 further Tight second seal 313, to realize that the installation of pressure relief device 30 is fixed.

In some instances, the top of ring compression part 311 has mounting groove (not shown), and mounting groove is for accommodating At least part of driving assembly 32, to driving assembly 32 is located in the mounting groove of ring compression part 311.Wherein, pacify The cross sectional dimensions of tankage is greater than the cross sectional dimensions of circular passage 3110, improves the stability of ring compression part 311.

Further, the bottom of ring compression part 311 has the first convex ribs 3112, and the first convex ribs 3112 can be close by second The outer peripheral edge of sealing 313 is pressed on the outer peripheral edge (i.e. the upper surface of annular brace muscle) of installing port, passes through the first convex ribs 3112 The top interference fit of pressuring action, the bottom and second seal 313 that make ring compression part 311 connects, and prevents the second sealing Part 313 falls off, while improving leakproofness.

In some instances, the bottom of ring compression part 311 also has the second convex ribs 3113, and the second convex ribs 3113 are plugged on In installing port, second seal 313 can be pressed on the inner wall of installing port by the second convex ribs 3113, to further prevent Two sealing elements 313 fall off, and improve reliability of structure.

Optionally, ring compression part 311 radially, the second convex ribs 3113 are located at the inside of the first convex ribs 3112, from And at least part of ring compression part 311 is fixed at installing port, to make ring compression part 311 to second seal 313 radial direction and axial dual fixation, improve sealing effect, while being easily installed fixation, improve assembly efficiency.

In some specific examples, at least part shape of second convex ribs 3113 towards a side surface of the first convex ribs 3112 At inclined surface, i.e., from the top of ring compression part 311 to the bottom of ring compression part 311, gradually inclination extends inwardly, thus It is interference fitted ring compression part 311 and second seal 313 to connect, further improves ring compression part 311 and second close Leakproofness between sealing 313.

Advantageously, the first convex ribs 3112 form the annular convex rib of the circumferentially extending along ring compression part 311, so as to more The good outer peripheral edge by second seal 313 is pressed on the outer peripheral edge of installing port, prevents it from falling off.

In other examples, the second convex ribs 3113 form annular convex rib, circumferential direction of the annular convex rib along ring compression part 311 Extend, so as to which second seal 313 to be preferably pressed on to the inner wall of installing port, guarantees the leakproofness of connection.

According to the control method of the cooking apparatus of the utility model embodiment, the program of cooking of cooking apparatus includes preparing rank Section, water suction the stage, control method the following steps are included:

S1, it controls air extractor after controlling pressure relief device closing relief hole in the preparation stage and cooking cavity is evacuated, Until stopping to culinary art chamber pumping, cooking apparatus enters the water suction stage when air pressure in cooking cavity reaches default negative pressure value；

S2, in the water suction stage, alternately control pressure relief device and air extractor, make the air pressure in cooking cavity in default negative pressure value Replace variation between normal pressure.

According to the control method of the cooking apparatus of the utility model embodiment, by using the cooking apparatus of above structure, In preparation stage and water suction stage, the air pressure in cooking cavity is reduced, prevents food spoilage, while improving the water absorbing capacity of food； Pressure relief device is controlled by control device and air extractor works alternatively, makes food water suction uniformly, is improved culinary art mouthfeel, is promoted and used Family experience.

In a specific example, the control method of cooking apparatus the following steps are included:

In the preparation stage, control device controls pressure relief device and closes relief hole, and controls air extractor and carry out to cooking cavity Pumping, until stopping to culinary art chamber pumping, cooking apparatus enters water suction rank when the air pressure in cooking cavity reaches 0.7 atmospheric pressure Section prevents food spoilage by reducing the air pressure in cooking cavity.

In the water suction stage, control device controls pressure relief device and air extractor works alternatively, and the air pressure in cooking cavity is made to exist 0.7 replaces variation between atmospheric pressure and normal pressure, converted by air pressure and promote food water suction, and makes water suction uniform.

According to the utility model further embodiment, the program of cooking of cooking apparatus further includes the ebuillition of heated stage, is inhaled When the water stage continues the first preset time T 1, cooking apparatus enters the ebuillition of heated stage, in the ebuillition of heated stage, between control device Pressure relief device work is controlled to having a rest property, the air pressure in cooking cavity is made to replace variation between normal pressure and default positive pressure value.Wherein, in advance If positive pressure value can be 1.2 atmospheric pressure, so that food be made to be heated evenly, culinary art mouthfeel is improved.

Below with reference to Fig. 1-Fig. 5 description according to the cooking apparatus 100 of the utility model embodiment.Here cooking apparatus 100 can be electric cooker, electric cooker, electric pressure cooking saucepan etc..

Cooking apparatus 100, comprising: pot body 10, lid 20, pressure relief device 30, solenoid valve 60, air extractor 40 and control dress Set (not shown).

Pot body 10 has the open cooking cavity 11 in top, and the bottom of pot body 10 is equipped with heating device.Lid 20 is mounted on pot On body 10, there are relief hole 21, aspirating hole 22 and gas vent 23 on lid 20, aspirating hole 22 is conducted with cooking cavity 11, gas vent 23 are conducted with the external world.Pressure relief device 30 and air extractor 40 are arranged in lid 20, and air extractor 40 is Miniature diaphragm pump, let out Pressure device 30 includes seal assembly 31 and driving assembly 32.

Driving assembly 32 includes driving portion 321, electromagnet 322, electromagnet push-rod 323 and return springs 324.Reset bullet Property part 324 be set in the outside of electromagnet push-rod 323, the upper end of spring 324 is only supported with the retaining part 3231 of electromagnet push-rod 323 Connection, lower end and electromagnet 322 only support connection.Seal assembly 31 includes ring compression part 311, second seal 313 and blocks Part 314, the outer peripheral edge of second seal 313 are sealedly connected on the bottom of ring compression part 311, and are located in lid 20 and annular Between compressing member 311, the middle part of second seal 313 and the clamping of closeouts 314 are connected.Between closeouts 314 and driving portion 321 Also there is pressure control elastic component 312, connection is only supported with closeouts 314 and driving portion 321 respectively in the both ends of pressure control elastic component 312, when When driving portion 321 moves down, pressure control elastic component 312 can be made to be pressurized, push closeouts 314 and second seal 313 together It moves down, blocks relief hole 21.

The control method of cooking apparatus is as follows:

In the preparation stage, control device controls pressure relief device work, and electromagnet 322 is powered, and driving driving portion 321 is to moving down Dynamic, pressure control elastic component 312 is pressurized, and closeouts 314 and second seal 313 is pushed to move downwardly together, blocks relief hole 21.Electricity The power-off of magnet valve 60 opens aspirating hole 22, and air extractor 40, to being evacuated in cooking cavity 11, makes cooking cavity by aspirating hole 22 Air pressure in 11 reaches 0.7 atmospheric pressure, stops being evacuated cooking cavity 11.In the preparation stage, food can be stored for a long time, and It will not go bad, will not influence subsequent culinary art effect.

In the water suction stage, control device controls pressure relief device 30 and air extractor 40 works alternatively.Specifically, solenoid valve 60 It is powered, blocks aspirating hole 22, the power-off of air extractor 40 does not work, and electromagnet 322 powers off, and electromagnet push-rod 323, which relies on, resets bullet Property part 324 elastic force move up, drive closeouts 314 and second seal 313 to move upwardly together, open relief hole 21, Cooking cavity 11 and extraneous conducting, so that cooking cavity 11 be made to restore normal pressure；Electromagnet 322 is once again powered up, and driving driving portion 321 is downward It is mobile, it pushes closeouts 314 and second seal 313 to move downwardly together, blocks relief hole 21, while the power-off of solenoid valve 60 makes Aspirating hole 22 is opened, and control device controls air extractor 40 and works, and air extractor 40 makes to cook to being evacuated in cooking cavity 11 Air pressure in chamber 11 reaches 0.7 atmospheric pressure.Control device controls above-mentioned two process and works alternatively, to make in cooking cavity 11 Air pressure replace variation between atmospheric pressure and normal pressure at 0.7.

When the water suction stage continues the first preset time T 1, cooking apparatus 100 enters the ebuillition of heated stage, in ebuillition of heated rank Section, control device intermittently control the work of pressure relief device 30.Specifically, control device control electromagnet 322 is powered, and driving is driven Dynamic portion 321 moves down, and closeouts 314 and second seal 313 is pushed to move downwardly together, blocks relief hole 21, while electricity Magnet valve 60, which is powered, blocks aspirating hole 22, makes to form a closed space in cooking cavity 11.Heating device carries out cooking cavity 11 Heating, in closed space, as the temperature rises, air pressure increases.

When the air pressure in cooking cavity 11 reaches 1.2 atmospheric pressure, control device controls electromagnet 322 and powers off, electromagnet Push rod 323 is moved up by the elastic force of return springs 324, drives closeouts 314 and second seal 313 together to moving up It is dynamic, relief hole 21, cooking cavity 11 and extraneous conducting are opened, so that cooking cavity 11 is restored normal pressure, and so on.By in ebuillition of heated In stage, control device control pressure relief device intermittently works, to keep the air pressure in cooking cavity 11 big in normal pressure and 1.2 Alternately change between air pressure.

When the ebuillition of heated stage continues the second preset time T 2, cooking apparatus 100, which enters, cooks rice over a slow fire the stage, at this point, control dress It sets control electromagnet 322 to power off, the power-off of air extractor 40 does not work, and cooking cavity 11 and the external world are connected, to make in cooking cavity 11 It is gradually recovered normal pressure.

The stage cook rice over a slow fire when continuing third preset time T 3, cooking apparatus 100 enters holding stage, at this point, control device control Electromagnet 322 processed is powered, and driving driving portion 321 moves down, and pressure control elastic component 312 is pressurized, and pushes closeouts 314 and second close Sealing 313 moves downwardly together, blocks relief hole 21.The power-off of solenoid valve 60 opens aspirating hole 22, and air extractor 40 passes through pumping Stomata 22 makes the air pressure in cooking cavity 11 reach 0.7 atmospheric pressure to being evacuated in cooking cavity 11, stops taking out cooking cavity 11 Gas.Holding stage duration T 4, until uncapping.

According to other compositions of the cooking apparatus of the utility model embodiment and operate for ordinary skill people Member for be all it is known, be not detailed herein.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.

While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that: These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective And modification, the scope of the utility model are defined by the claims and their equivalents.

Claims (10)

1. a kind of cooking apparatus characterized by comprising

Pot body, the pot body have the open cooking cavity in top；

Lid, the lid are movably installed between open and closed positions to the pot body, and the lid has Aspirating hole, relief hole；

Air extractor, the air extractor are connected to will form negative pressure in the cooking cavity with the aspirating hole；

Pressure relief device, the pressure relief device include the seal assembly and driving assembly being located at the relief hole, the sealing group Part includes closeouts movable along the longitudinal, is used to open and blocks the relief hole, and the driving component is located at the sealing The top of component and including along the longitudinally moveable driving portion, the driving portion is for driving the closeouts mobile, institute It states pressure relief device and is not opened simultaneously with the air extractor；

For controlling the control device of cooking apparatus culinary art mode, the control device respectively with the air extractor and institute State pressure relief device communication connection.

2. cooking apparatus according to claim 1, which is characterized in that the air extractor is Miniature diaphragm pump, described micro- Type diaphragm pump is connected to by connecting tube with the aspirating hole.

3. cooking apparatus according to claim 1 or 2, which is characterized in that between the air extractor and the aspirating hole Equipped with solenoid valve, for controlling the on-off of the gas circuit between the air extractor and the aspirating hole.

4. cooking apparatus according to claim 3, which is characterized in that the solenoid valve includes:

Valve seat, the valve seat have airflow channel, and the import of the airflow channel is suitable for being connected to the aspirating hole, the air-flow The outlet in channel is suitable for being connected to the air extractor；

Valve body, the valve body have moveable part, for being connected to or disconnecting the import of the airflow channel and go out Mouthful.

5. cooking apparatus according to claim 3, which is characterized in that be equipped with first seal at the aspirating hole, be used for It is tightly connected with the solenoid valve.

6. cooking apparatus according to claim 1, which is characterized in that the driving component further includes electromagnet and by described The electromagnet push-rod of solenoid actuated, the electromagnet push-rod are connect with the driving portion.

7. cooking apparatus according to claim 6, which is characterized in that the end of the electromagnet push-rod has retaining part, The driving component further includes return springs, the both ends of the return springs respectively with the retaining part and the electromagnet Only support connection.

8. cooking apparatus according to claim 1 or 6, which is characterized in that the pressure relief device further include: pressure control elasticity Part, the both ends of the pressure control elastic component are only supported with the closeouts with the driving portion connect respectively.

9. cooking apparatus according to claim 1, which is characterized in that the seal assembly further include: second seal, institute It states second seal to connect with the closeouts, is used to open and blocks the relief hole.

10. cooking apparatus according to claim 9, which is characterized in that the seal assembly further include: ring compression part, The ring compression part is adapted to be mounted to the lid and is located at the top of the relief hole,

The middle part of the second seal is connect with the bottom of the closeouts, and the outer peripheral edge of the second seal is located in institute It states between lid and the ring compression part.