CN104586248B - Pressure-adjustable heating cooking device - Google Patents
Pressure-adjustable heating cooking device Download PDFInfo
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- CN104586248B CN104586248B CN201510068349.3A CN201510068349A CN104586248B CN 104586248 B CN104586248 B CN 104586248B CN 201510068349 A CN201510068349 A CN 201510068349A CN 104586248 B CN104586248 B CN 104586248B
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Abstract
The invention provides a kind of pressure-adjustable heating cooking device.This pressure-adjustable heating cooking device includes：Cooking space；Steam spill cavity, it is connected with cooking space by the first passage；And first pressure regulator valve, it is installed on steam and overflow intracavity.Wherein, the first regulating valve includes：Sphere, it is placed on above the first passage；And stabiliser bar, it has a horizontally movable limiting section, and under the drive of this limiting section, sphere can scroll forward and backward be limited in the inner space that limiting section is limited with opening or closing the first passage, the activity space of sphere.In first pressure regulator valve of the present invention, combined with limiting section by stabiliser bar, spring, so that the position of sphere is relatively fixed, even if thus rocking this heating cooking device in the case of unintentional, steam is also not in escape phenomenon, it is to avoid the generation of steam casualty accident.
Description
Technical field
The present invention relates to a kind of pressure-adjustable heating cooking device that will be set to pressurized state and cooked in pot.
Background technology
With the increasingly raising of the abundant of people's material life and quality of life, the mouthfeel to the food cooking of cooking apparatus
Put forward higher requirement with sense organ.
In order to rice cooking is tastier, challenge is how to make temperature control more than 100 DEG C, allow rice
The abundant gelatinizing of starch.Existing settling mode is so that the pressure in its pot is risen to greatly by controlling the opening and closing of pressure regulator valve at present
In normal atmosphere：In boiling stage, the opening and closing of many secondary control pressure regulator valve, so that pot internal gas pressure rises to 1.2 greatly repeatedly
It is reduced to 1.0 normal atmosphere again near air pressure.Thus, promote the grain of rice because the change of pot inner pressure produces substantial amounts of bubble,
So that the grain of rice is sufficiently heated makes its more preferable gelatinizing and water suction, its result is that the mouthfeel of rice gets a promotion.With regard to pressure regulation
Valve, has had multiple technical schemes in prior art.
List of references 1 provides a kind of pressure type cooker.Fig. 1 is that in cooker during list of references 1 pressure, pressure regulator valve leaves
Close the schematic diagram of mechanism.As shown in figure 1, this pressure regulator valve switching mechanism 19 includes：Cylinder 20；Plunger 21, its movement of retreating in cylinder；
Actuating strut 22, it is arranged on the leading section of plunger 21；And spring 25, its be arranged on the one end of cylinder 20 and actuating strut 22 it
Between.In cylinder 20, it is assembled with the solenoid (not shown) being wound into cylindrical shape, plunger 21 has according to the excitation of solenoid
No retreat in cylinder 20 and move.Spring 25 is for example made up of stretching, extension disc spring.Actuating strut 22 is across the resilient seal member of tool
23 and be supported on the cover 13b of pressure regulator valve 13.
In this pressure regulator valve switching mechanism, when the solenoid of cylinder 20 is not excited, plunger 21 is due to spring body 25
Elastic force and exerted a force towards the direction leaving cylinder 23a.Now, via actuating strut 22, metal ball 14 is urged into from steam discharge hole
131 leave, and make steam discharge hole 131 become open state.On the other hand, when the solenoid in cylinder 20 is excited, plunger 21
Resist the elastic force of spring body 25 and be drawn in cylinder 20.Now, metal ball 14 due to deadweight along the inclination being arranged at valve seat 13a
Face is moved, and returns on steam discharge hole 131, makes steam discharge hole 131 become closed mode.
For the pressure regulator valve switching mechanism given by list of references 1, because metal ball is freely to be placed on valve seat, do not have
Have other fixable devices, its stability is low, be conducive to pressure regulator valve switching mechanism by actuating strut promote this metal ball Lai
Carry out the on-off action of steam hole.However, in the case of reaching certain pressure in pot, if outside somewhat applies one outward
Power just can make this metal ball rock, so that steam is surprisingly escaped.In this case, if being not intended to touch or this pressure type mobile
Cooker is all by it may happen that the accident hurted sb.'s feelings of steam.
List of references 2 provides a kind of heating device.Fig. 2 is the showing of two pressure regulator valves in list of references 2 heating device
It is intended to.Refer to Fig. 2, equipped with the first pressure regulator valve 43A and the second pressure regulator valve 43B in this heating device, its passage is respectively
For 46A and 46B.First pressure regulator valve 43A is unanimous on the whole with pressure regulator valve above, no longer describes in detail.It is primarily upon herein
Two pressure regulator valve 43B.
Second pressure regulator valve 43B the inside of cover 48B possess for close intercommunicating pore 46B valve body 51, make this valve body 51 to
Component 52 and the spring 53 being disposed between above-mentioned two components are born in the action of closed position (downward) movement.When because of driver element
The driving of (not shown, such as motor) and when so that action is born component 52 and move down, valve body 51 utilizes via spring
Valve body 51 closes intercommunicating pore 46B.In addition, bear the regulation of the amount of movement (active force) of component 52 by action, interior pot can be made
Boost in the range of inherent 1.00～1.30atm.
For the second pressure regulator valve in list of references 2, it is only to refer to carry out drive actions using motor bear structure
Part moves.However, motor provide driving force limited, precision equally limited it is impossible to meet precise control valve body movement
Purpose.
List of references：
1st, patent documentation, application publication number：CN 103989400 A
2nd, patent documentation, Authorization Notice No.：CN 203183387 U
Content of the invention
(1) technical problem to be solved
In view of above-mentioned technical problem, the invention provides a kind of pressure-adjustable heating cooking device, to improve cooking pot
Safety, improves the precision of control simultaneously.
(2) technical scheme
Pressure-adjustable heating cooking device of the present invention includes：Including：Cooking space, it accommodates cooked thing；Steam overflows
Chamber, it is connected with cooking space by the first passage 250；And first pressure regulator valve 400, it is installed on steam and overflow intracavity,
It controls the opening and closing of the first passage 250.This first pressure regulator valve 400 includes：Sphere 430, it is placed on the first passage 250
Side；And stabiliser bar 440, it has a horizontally movable limiting section 442, under the drive of this limiting section 442, sphere
430 can scroll forward and backward, thus opening or closing the first passage, and, the activity space of sphere 430 is limited at limiting section
In 442 inner spaces being limited.
Preferably, in pressure-adjustable heating cooking device of the present invention, sphere 430 is situated between with the distance of limiting section 442 inner side
Between 0.2mm-1.5mm.
Preferably, in pressure-adjustable heating cooking device of the present invention, the limiting section 442 of stabiliser bar is in：Annular, is surrounded on ball
The periphery of shape thing 430 horizontal direction；Or semicircle, it is fastened on sphere 430 first half.
Preferably, in pressure-adjustable heating cooking device of the present invention, the limiting section 442 of stabiliser bar is ringwise；Wherein, this ring
Shape is annular, octagon annular, regular hexagon annular or square are annular.
Preferably, in pressure-adjustable heating cooking device of the present invention, the first pressure regulator valve 400 also includes：Cover body 410,
The periphery of one passage 250 surrounds the first valve space, offers push-and-pull hole 411 on its surface；First drive mechanism 460, before it
Portion's movable terminal stretches into steam and overflows intracavity；Stabiliser bar 440 also includes：Push-and-pull portion 441, in " T " font rotating 90 °, it is relatively
Narrow end passes through the push-and-pull hole 411 on cover body to stretch in the first valve space, and limiting section 442 is fixing, and it is located at the first valve space
There is between outer thicker end and cover body 410 first compression elastic element 450.
Preferably, in pressure-adjustable heating cooking device of the present invention, for the first regulating valve 400 following two states it
Between switch：Open mode：The movable terminal of the first drive mechanism 460 is in retracted state, in the first compression elastic element 450
Under elastic force active force, stabiliser bar 440 retreats, and sphere 430 is pulled open by push-and-pull portion 441 from the position of the first passage 250 top,
First passage 250 is opened；Closed mode：The movable terminal of the first drive mechanism 460 is in the state of stretching out, and overcomes the first compression
The elastic force active force of flexible member 450, stabiliser bar 440 forwards stretches out, and sphere 430 is pushed to first and leads to by push-and-pull portion 441
Above pore 250, the first passage 250 is closed.
Preferably, in pressure-adjustable heating cooking device of the present invention, the first driver part is the plunger with solenoid
Formula part, in the power-off state, its movable terminal is in retracted state.
Preferably, in pressure-adjustable heating cooking device of the present invention, the surface of cover body is further opened with being in together with push-and-pull hole
On one horizontal plane and the location hole 412 that is oppositely arranged；Stabiliser bar 440 also includes：Location division 443, in shaft-like, its one end is fixed on
Limiting section 442, the other end stretches out outside the first valve space through location hole 412.
Preferably, in pressure-adjustable heating cooking device of the present invention, sphere 430 is metal ball thing；Cover body 410 upper end
Uncovered or surface offers bleeder port 413；First driver part 460 stretches into steam and overflows the movable terminal of intracavity and the steaming of periphery
The cavity wall sealing of vapour spill cavity；And/or first pressure regulator valve 400 also include：Valve seat 420, it is empty that it is at least partly fixed on the first valve
Interior, it corresponds to the position of the first passage 250 and is formed with longitudinal steam channel 421；Sphere 430 is placed on steam channel
421 top, and can move forward and backward.
Preferably, in pressure-adjustable heating cooking device of the present invention, steam spill cavity also by the second passage 260 with cook
Space of preparing food is connected；Pressure-adjustable heating cooking device also includes：Second pressure regulator valve 500, is installed on steam and overflows intracavity, be used for
Control the opening and closing of the second passage 260.This second regulating valve 500 includes：Motor 510；Screw mandrel slide unit 520, its level sets
Put, the initiating terminal of leading screw connects motor 510；L-shaped transmission arm 530, the lid above pivot joint in the middle part of it, its first end is fixed
On the slide block of screw mandrel slide unit 520；Drive link 540, its upper end abuts or is fixed on the second end of L-shaped transmission arm 530, its lower end
Pierce into steam from top to bottom and overflow intracavity；Electrodeless regulating valve 550, its upper end is connected to the lower end of drive link 540, and there is bullet its lower end
The pressure of power is on the second passage 260；Wherein, motor 510, screw mandrel slide unit 520, L-shaped transmission arm 530 are located at steam and overflow
Go out outside chamber, the slide block of motor 510 drive screw slide unit 520 horizontally slips, by L-shaped transmission arm 530 and drive link 540
Gearing, makes electrodeless regulating valve 550 move up and down, opens or closes the second passage 260.
Preferably, in pressure-adjustable heating cooking device of the present invention, electrodeless regulating valve 550 includes：Valve wall 551, it is presented
The tubular of end opening, lower end is fixed and is had bleeder port；Bonnet 552, it is downwardly open, and its upper end compresses or is fixed on drive link
540 lower end, the edge of lower end is mutually clamped with the edge of valve wall upper end, and this bonnet 552 can be longitudinally sliding along valve wall 551
Dynamic；Slide-valve 554, its lower end nip portion is pressed on the second passage 260, and its upper end sliding part is in the tubular of opening upwards,
It is provided with the second compression elastic element 553 between this sliding part and bonnet.
Preferably, in pressure-adjustable heating cooking device of the present invention, the lower end nip portion of slide-valve is in blunt point shape, ladder
Shape or spherical.
Preferably, in pressure-adjustable heating cooking device of the present invention, the second regulating valve 500 also includes：3rd elasticity of compression
Element 560, is arranged between periphery and the sliding part of slide-valve of the second passage, its support force and electrodeless regulating valve 550
Weight is suitable.
Preferably, pressure-adjustable heating cooking device of the present invention also includes：Cooking pot body 100；And lid 200, lid
In the peristome on cooking pot body 100 top, form the cooking space of a cooked thing of receiving between the two.This lid 200 wraps
Include：Inner cover plate 220, it is placed on the peristome of cooking pot body 100；Outer cover case 230, its be located at inner cover plate top, and with interior
Cover plate keeps at a certain distance away, and forms an accommodation space between the two；And frame section 240, in inner cover plate 220 and outer cover case 230
Between form steam spill cavity and a steam passage, this steam spill cavity is by the first passage 250 being opened in inner cover plate
It is connected with cooking space, and be connected with space outerpace by steam channel.
Preferably, pressure-adjustable heating cooking device of the present invention also includes：Pressure transducer, in its monitoring cooking space
Pressure condition；Temperature sensor, the temperature regime in its monitoring cooking space；Pressure regulation valve control device, it is according to by pressure shape
The opening and closing of culinary art Row control first pressure regulator valve of condition, temperature regime and itself storage.
(3) beneficial effect
From technique scheme as can be seen that pressure-adjustable heating cooking device of the present invention has following beneficial effect：
(1) in the first pressure regulator valve, combined with limiting section by stabiliser bar, spring, make the position of sphere relatively solid
Fixed, even if thus rocking this heating cooking device in the case of unintentional, steam is also not in escape phenomenon, it is to avoid steam wound
The generation of people's accident；
(2) in the second pressure regulator valve, by the combination of motor, screw mandrel slide unit and transmission arm, enhance motor
Driving force and control accuracy, be conducive to cooking more delicious rice；
(3) in the second pressure regulator valve, the bottom of electrodeless regulating valve arranges the 3rd compression elastic element, so that the second pressure regulator valve is existed
It is in the state opening path, thus allowing this second pressure regulator valve can be from 1.00atm to pressure controlled minima under naturalness
Start, increased the controlled range of the second pressure regulator valve.
Brief description
Fig. 1 is the schematic diagram of pressure regulator valve switching mechanism in cooker during list of references 1 pressure；
Fig. 2 is the schematic diagram of two pressure regulator valves in list of references 2 heating device；
Fig. 3 is the sectional view according to embodiment of the present invention pressure-adjustable heating cooking device；
Fig. 4 A is the structural representation of the first pressure regulation valve portion in pressure-adjustable heating cooking device shown in Fig. 3；
Fig. 4 B is the top view of the first pressure regulation valve portion shown in Fig. 4 A；
Fig. 5 is the structural representation of the second pressure regulation valve portion in pressure-adjustable heating cooking device shown in Fig. 3；
Fig. 6 be using the present embodiment pressure-adjustable heating cooking device cook rice when kettle temperature and pressure at any time
Between change schematic diagram；
Fig. 7 is the structural representation according to second embodiment of the invention pressure-adjustable heating cooking device；
Fig. 8 is the structural representation of the second pressure regulator valve in pressure-adjustable heating cooking device shown in Fig. 7.
【Main element symbol description of the present invention】
100- cooking pot body；
110- housing；Pot in 120-；
200- lid；
210- sealing ring；220- inner cover plate；
230- outer cover case；240- frame section
250- first passage；260- second passage；
300- heats assembly；
310th, 320- lower heater；330th, 340- upper heater；
400- first pressure regulator valve；
410- cover body；
411- push-and-pull hole；412- location hole；
413- bleeder port；
420- valve seat；
421- steam channel；
430- sphere；
440- stabiliser bar；
441- push-and-pull portion；442- limiting section；
443- location division；
450- first compression spring；
460- first drive mechanism；
500- second pressure regulator valve；
510- motor；520- screw mandrel slide unit；
530-L shape transmission arm；540- drive link；
The electrodeless regulating valve of 550-；
551- valve wall；552- bonnet；
553- second compression spring；554- slide-valve；
551a- bleeder port；
560- the 3rd compression spring.
600- sensor group；
610- bottom temp sensor；620- pressure transducer；
630- tip temperature sensor.
Specific embodiment
For making the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in more detail.It should be noted that in accompanying drawing or description describe, similar or identical portion
Divide all using identical figure number.The implementation not illustrating in accompanying drawing or describing, is those of ordinary skill in art
Known form.In addition, though the demonstration of the parameter comprising particular value can be provided herein, it is to be understood that parameter need not definitely etc.
It is worth in corresponding, but can be similar to be worth accordingly in acceptable error margin or design constraint.Mention in embodiment
Direction term, for example " on ", D score, "front", "rear", "left", "right" etc., be only the direction of refer to the attached drawing.Therefore, the side of use
It is used to explanation to term not for limiting the scope of the invention.
Pressure-adjustable heating cooking device of the present invention passes through the improvement to two pressure regulator valves, enhances safety and controllability.
In one exemplary embodiment of the present invention, there is provided a kind of pressure-adjustable heating cooking device.According to Fig. 3
The sectional view of embodiment of the present invention pressure-adjustable heating cooking device.As shown in figure 3, the present embodiment pressure-adjustable heating cooking
Device includes：Cooking pot body 100；Lid 200, it is placed on the peristome of cooking pot body 100, forms a receiving quilt between the two
The cooking space of cooking；Heating assembly 300, it is arranged at cooking pot body 100 and the predetermined patterns of lid 200, to culinary art
Cooked thing in space is heated；First pressure regulator valve 400, its to make in described cooking space with connect in described lid
First passage is opened and closed control；Second pressure regulator valve 500, it is logical with second connecting in lid in described cooking space to making
Pore is opened and closed control；Sensor group 600, is monitored to the temperature and pressure situation in cooking space；Pressure regulator valve controls
Mechanism, it is controlled to described first pressure regulator valve 400 and the second pressure regulator valve 500, to adjust the pressure in described cooking space.
Individually below each ingredient of the present embodiment pressure-adjustable heating cooking device is described in detail.
Pressure-adjustable heating cooking device is " electric cooker " or " electric pressure cooking saucepan " being commonly called as, and it can steam rice, cook gruel
Or stew meat, Fish etc..Due to its cooking savory, feature richness, pressure-adjustable heating cooking device has become as at home
Indispensable kitchen utensils.In the present embodiment, mainly taking steam rice as a example illustrated.
Refer to Fig. 3, cooking pot body 100 includes：Housing 110；Can removably be contained in has bottom in housing 110
The interior pot 120 of tubular.The similar structures of this cooking pot body 100 have been well known to those skilled in the art, and no longer enter herein
One step describes in detail.
Lid 200 is rotationally sticked on the housing 110 of cooking pot body 100, covers interior pot 120, thus at both
Between form a cooking space.For ensureing the seal of this cooking space, between lid 200 and interior pot 120, it is additionally provided with ring
The sealing ring 210 of shape.
Refer to Fig. 3, lid 200 includes：Inner cover plate 220, outer cover case 230, and be formed at inner cover plate and outer cover case it
Between frame section 240.Wherein, frame section 240 forms a steam spill cavity and a steaming between inner cover plate 220 and outer cover case 230
Vapour path.This steam spill cavity is by the first passage 250 of being opened in inner cover plate 220 and the second passage 260 and culinary art
Space communicates, and is connected with the space outside cooking pot body 100 by steam channel.
In order to omnibearing cooking is carried out to the food in cooking space, set in the many places of pressure-adjustable heating cooking device
It is equipped with heater.Refer to Fig. 3, in housing near interior pot position be provided with the internal pot of way of electromagnetic induction carry out plus
The lower heater (310,320) of heat, lid inner cover plate 220 towards cooking space side, be additionally provided with many places upper plus
Hot device (330,340).
Meanwhile, in order to be monitored to the environment of cooking space, in housing, bottom temp is set near the position of interior pot
Sensor 610, senses towards the side setting pressure transducer 620 of cooking space and head temperature in the inner cover plate 220 of cover plate
Device 630.Pressure regulation valve control device enters to the first pressure regulator valve 400 and the second pressure regulator valve 500 according to the information that these sensors provide
Row controls.
The steam that first pressure regulator valve 400 and the second pressure regulator valve 500 are mounted between the outer cover case of lid and inner cover plate overflows
Go out intracavity.
First pressure regulator valve 400 is used for controlling the path of the first passage and this extrapersonal space of cooking pot.When the first pressure regulator valve
400 when opening, and the first passage 250 is opened, and the steam in cooking space enters steam by the first passage 250 and overflows
Chamber, enters the space outside cooking pot body 100 by steam passage；When the first pressure regulator valve 400 cuts out, the first passage 250
It is closed.
Fig. 4 A is the structural representation of the first pressure regulation valve portion in pressure-adjustable heating cooking device shown in Fig. 3.Refer to
Fig. 3 and Fig. 4 A, the first pressure regulator valve 400 includes：Cover body 410, is fixed on the side of the inner cover plate of lid towards steam spill cavity, its
Surround the first valve space in the periphery of the first passage 250, and offer push-and-pull hole 411, location hole on the surface of cover body 410
412 and bleeder port 413；Valve seat 420, is fixed in the first valve space, its correspond to the first passage 250 position be formed with vertical
To steam channel 421；Sphere 430, its by cover steam channel 421 and can by prescribed direction scroll forward and backward in the way of place
On valve seat 420；Stabiliser bar 440, horizontally disposed, extraneous power is transferred in the first valve space for it, promotes spherical
Thing 430 covers steam channel 421 or gets away from this position；First drive mechanism 460, its anterior movable terminal stretches into steam and overflows
Intracavity, withstands or is fixed on the rear end of stabiliser bar 440.
In the present embodiment, the integrated making of cover body 410, special bleeder port 412 is set on the right side of cover body.But it is true
On, this cover body 410 can be prepared respectively by body and lid, can also be that opened type designs, and no special bleeder port, all not
Enforcement on the present invention produces impact.Additionally, with regard to valve seat 420, it may be located in the first valve space it is also possible to be only part
In the first valve space, or in some cases, be not provided with special cover body and valve seat, as long as can have will be spherical
Thing in the horizontal direction range of activity limit get up limiting section, and have to stabiliser bar move horizontally generation support, equal energy
Enough realize the present invention.
First drive mechanism 460 can be the pressure regulator valve switching mechanism being previously mentioned in background technology, its anterior movable terminal
Stretch into steam and overflow intracavity, peak at the end of stabiliser bar 440.
Fig. 4 B is the top view of the first pressure regulation valve portion shown in Fig. 4 A.Refer to Fig. 4 A and Fig. 4 B, this stabiliser bar 440 wraps
Include：Push-and-pull portion 441, in " T " font rotating 90 °, the first valve is stretched in the push-and-pull hole 411 that its anterior narrow end passes through on cover body
In space；Limiting section 442, ringwise, is fixed on the narrow end in push-and-pull portion, and sphere 430 is confined in inner space；Positioning
Portion 443, its one end is fixed on the front end of limiting section 442, and the other end is stretched out outside the first valve space by location hole 412.Wherein, push away
Portion 441, limiting section 442 and location division 443 is drawn to be generally in same level.
Under the drive of limiting section 442, sphere 430 can scroll forward and backward, thus opening or closing described first passage,
And, the activity space of sphere 430 is limited in the inner space that limiting section 442 is limited.Additionally, push-and-pull hole 411 He
Location hole 412 is oppositely arranged and is in same level.Push-and-pull portion 441 moves along push-and-pull hole 411, and location division 443 is along positioning
Move in hole 412, thus push-and-pull hole 411 and location hole 412 can ensure that stabiliser bar 440 moves in the horizontal direction, without tilting.
In the outside in the first valve space, push-and-pull portion 441 be located at thicker end and cover body 410 outside described first valve space it
Between, there is the first compression spring 450.Wherein, under the driving of the first drive mechanism 460, the first pressure regulator valve 400 is in open mode
Switch and closed mode between, wherein：
1st, open mode：The movable terminal of the first drive mechanism 460 is in retracted state, due to the first compression spring 450
Elastic acting force, so that stabiliser bar 440 is moved to the left, and drive limiting section 442 to be moved to the left, thus pull sphere 430 from
Open the position of steam channel 421 top, make the first pressure regulator valve 400 be in open mode, cooking space pass through the first valve space with
Steam spill cavity connects；
2nd, closed mode, the movable terminal of the first drive mechanism 460 is in the state of stretching out, and stabiliser bar 440 is withstood on its top
Move forward, overcome the elastic acting force of the first compression spring 450, promote sphere 430 to roll by limiting section 442 and lead to steam
The top in road 421, makes the first pressure regulator valve 400 be closed, and steam spill cavity is isolated with cooking space.
Now, even if situation about shaking, due to the effect of annular stop part, it also will not be by steam channel 421
Fang Yikai, thus steam will not surprisingly be escaped, causes casualty accident.
In the present embodiment, a first drive mechanism 460 e.g. plunger type part, including：Cylinder；Plunger, it enters in cylinder
Retire dynamic；Actuating strut, it is arranged on the leading section of plunger, and stabiliser bar is withstood in its front end；Solenoid, in cylinder, is wound into
Cylindric.When the first drive mechanism 460 receives opening signal, the solenoid in cylinder is not excited, in contraction state, and then
Its top is in retracted state.When the first drive mechanism 460 receives shutdown signal, solenoid is excited and stretches and open,
Promote plunger and actuating strut to move forward, and then make its top be in the state of stretching out.
Wherein, sphere 430 has the weight of regulation, and closes steam channel 421 using its deadweight.Except metal material
Outside material, this sphere can also be prepared with the material that other have certain density, such as organic material.And, this sphere 430
Outside and stabiliser bar the inner side of limiting section 442 distance between 0.2mm-1.5mm.
Additionally, in the present embodiment, limiting section 442 is in the annular of octagon shape, but the present invention is not limited thereto, should
Limiting section can also be the annular of other shapes, for example, the annular of square or regular hexagon shape, or annular.And,
This limiting section can also be for being buckled in the semicircle of sphere 430 top.
It should be noted that in the present invention, in stabiliser bar 440 each part can prepare respectively and be welded and fixed it is also possible to
It is that integration system is standby.And, in the case of ensure that stabiliser bar moves horizontally stably, location division 443 can be omitted.This is fixed
Outside 443 roles are to ensure that stabiliser bar does not rock during moving forward and backward.
Additionally, the portion joining with frame section 240 when the movable terminal of the first drive mechanism 460 stretches into steam spill cavity
Position, can also increase sealing member, as described in list of references 1.
It can be seen that, the present embodiment passes through stabiliser bar, spring is combined with limiting section, so that the position of metal ball is relatively fixed, from
Even and if rock this heating cooking device in the case of unintentional, steam is also not in escape phenomenon, it is to avoid steam is hurted sb.'s feelings thing
Therefore generation.
Second pressure regulator valve 500 and the first pressure regulator valve 400 are respectively arranged in the diverse location of inner cover plate.Second pressure regulator valve 500
For being closed down when the first pressure regulator valve 400, section is finely adjusted to the pressure in cooking space, such as 1.0 to 1.3atm
Between adjust, simultaneously when pot inner pressure is more than default warning pressure (such as 1.5atm), its releasing pressure automatically, so that pot inner pressure
In preset security pressure limit.When the second pressure regulator valve 500 is opened, the second passage 260 is opened, the steaming in cooking space
Vapour can enter steam spill cavity by the second passage 260, enters the space outside cooking pot body 100 by steam passage；
When the second pressure regulator valve 500 cuts out, the second passage 260 is closed.
Fig. 5 is the structural representation of the second pressure regulation valve portion in pressure-adjustable heating cooking device shown in Fig. 3.As Fig. 5 institute
Show, this second pressure regulator valve 500 includes：Motor 510；Screw mandrel slide unit 520, it is horizontally disposed with, and the initiating terminal of leading screw connects step
Stepper motor 510；L-shaped transmission arm 530, is articulated in the upper lid of lid in the middle part of it, its first end is fixed on the slide block of screw mandrel slide unit 520
On；Drive link 540, its upper end abuts or is fixed on the second end of L-shaped transmission arm 530, and its lower end passes through frame section to enter steam
Overflow intracavity；Electrodeless regulating valve 550, its upper end is connected to the lower end of described drive link 540, and its lower end pressure springy is located at the
On two passages.
Wherein, electrodeless regulating valve 550 includes：Valve wall 551, it is in the tubular of upper end open, and the interior of lid is fixed in lower end
Cover plate, bottom has bleeder port 551a；Bonnet 552, it is downwardly open, and its upper end compresses or is fixed on drive link 540, lower end
Outer ledge is mutually clamped with the outer ledge of tubular valve wall upper end, and bonnet 552 can along valve wall 551 outer ledge (or
Inside edge, depending on clamped position) longitudinal sliding motion in preset range；Slide-valve 554, its lower end nip portion is pressed on second
On passage, its upper end sliding part is in the tubular of opening upwards, is provided with the between the bottom of this tubular sliding part and bonnet
Two compression springs 553.
Wherein, the lower end nip portion of slide-valve 554 is in truncated cone shape, is pressed on the second passage, but the present invention is simultaneously
It is not limited, the front end of this slide-valve 554 can also be other shapes, for example trapezoidal, spherical etc..
As shown in figure 5, the second pressure regulator valve 500 is normally close valve.When the first pressure regulator valve 400 cuts out, this second pressure regulator valve 500
The driving of stepping electrode 510 can be passed through, screw mandrel slide unit 520 can be made to slide from a to b.L-shaped transmission arm 530 He thus can be passed through
Drive link 540 makes bonnet 552 activity from a1 to b1, thus pot inner pressure can be made freely to adjust between 1.05-1.3atm.And
And, when pot inner pressure is more than 1.5atm, this second pressure regulator valve 500 can play the effect of relief valve by releasing pressure automatically.So design
The beneficial effect brought is to improve voltage-regulating system during cooking to pressure controlled precision.Second tune in the present embodiment
Section valve operation principle be：
1st, when needing to control liter high pressure, give motor 510 backing signal, it promotes the silk of screw mandrel slide unit 520
Thick stick rearward movement, thus the first end of L-shaped transmission arm 530 moves to b direction with the movement of slide block, its other end presses down on
Drive link 540, and then so that electrodeless regulating valve 550 is compressed downwards；
2nd, when need reduce pressure when, give motor 510 progress signal, its promote screw mandrel slide unit 520 leading screw to
Front motion, thus the first end of L-shaped transmission arm 530 moves to a direction with the movement of slide block, its other end pulls up transmission
Bar 540, and then so that electrodeless regulating valve 550 is loosened downwards, the second passage connects with steam spill cavity；
Additionally, the position joining with frame section 240 when drive link 540 stretches into the second valve space, sealing can also be increased
Part, thus realize the isolation of steam spill cavity and other spaces.
It should be noted that in the present embodiment pressure-adjustable heating cooking device, there is the first pressure regulator valve and second simultaneously
Pressure regulator valve, but the present invention is not limited thereto.If although cooking space can not precisely be adjusted during only the first pressure regulator valve
Pressure, but equally it is capable of the present invention, no longer describe in detail herein.
In the present embodiment, pressure condition in cooking space described in pressure sensor monitoring, and then pressure regulator valve control machine
Structure according to by pressure sensor monitoring to cooking space in pressure condition, multiple temperature sensor (610,620,630) inspection
The temperature regime in cooking space measuring and the culinary art flow process of itself storage, by the first drive mechanism 460 and motor
510, control the first pressure regulator valve 400 and the opening and closing of the second pressure regulator valve 500 respectively.With regard to pressure transducer and pressure regulator valve control
The structure of mechanism processed and relative theory, belong to known content, here is omitted in the art.
Fig. 6 be using the present embodiment pressure-adjustable heating cooking device cook rice when kettle temperature and pressure in time
The schematic diagram of change.Refer to Fig. 6, the present embodiment pressure-adjustable heating cooking device, when cooking rice, needs experience as follows
Several stages：
1st, the pre- heat absorbing water stage
First pressure regulator valve and the second pressure regulator valve are in naturalness, and (i.e. the first pressure regulator valve is in open mode, the second tune
Pressure valve is closed), both are now all not involved in work, the internal meter Shui in pot together of the multiple heaters around interior pot
Mixture is heated, and rice is in this stage pre- heat absorbing water；
2nd, concentrate the heating period
In this stage, with fire by force, internally pot is heated always, when tip temperature sensor monitors 74 DEG C it was demonstrated that
In pot, water comes to life.Now, the first pressure regulator valve and the second pressure regulator valve enter closed mode.
3rd, seethe with excitement sustained period
In this stage, the fluidized state of water in pot in maintenance, make the starch gelatinization of rice.
In the first half term in this stage, pressure is made repeatedly to increase from 1.0 to 1.2atm, such purpose is to allow the interior generation of pot
Substantial amounts of bubble promotes rice to be cooked, so just can make rice to be cooked being heated and absorbing water evenly.The working method of two pressure regulator valves
It is：Second pressure regulator valve is in (reason is to allow its pressure can reach greater value) at b1, and the first first pressure regulator valve steam off leads to
Road, makes pressure rise to preset pressure (as 1.2atm), then opens the first pressure regulator valve again, and opening steam passage makes pressure drop to
1.0atm.So being repeated several times can (this number of times typically 4-6 time, criterion be according to user selection rice soft or hard
Degree is determining),
This stage the second half to the solid carbon dioxide stage, control pressure and be maintained near preset value (as 1.2atm), such as
Shown in Fig. 6, the purpose of do so is the mouthfeel allowing rice more preferable gelatinizing under higher temperature improve rice.Two pressure regulator valves
Working method is：First pressure regulator valve necessarily be under steam off channel status, then is finely adjusted by the second pressure regulator valve, first
Stepper motor drives associated components so that bonnet is at b1, after making pressure rapidly increase to preset value (such as 1.2atm), works as pressure
When power is more than preset value (as 1.21atm), stepper motor drives associated components so that bonnet is moved at a1, and now pressure will be slow
Decline, when pressure drop to (as 1.19atm) during less than preset value, now stepper motor driving associated components make bonnet at b1
Movement makes pressure go up to preset value.Action and so on just can make pressure more be precisely controlled near preset value.
4th, the solid carbon dioxide stage
In the first half term in this stage, and internal pot is persistently heated, and pressure continues to control at preset value (as 1.20atm)
Near, and unnecessary steam is passed through the second pressure regulator valve discharge, stop heating, now pot when cooking bottom temperature rises to 130 DEG C
Interior moisture major part has been evaporated；The pressure of interior pot starts slowly to decline.
5th, boil in a covered pot over a slow fire the steaming stage
In this stage, the interim heating of heater, to maintain the temperature in the bottom of a pan in 97 DEG C of adnexaes, makes the gelatinization point of rice carry
High to 100%.During this, the first pressure regulator valve and the second pressure regulator valve are in opening, continue to make unnecessary moisture evaporation until cooking a meal
Boil EP (end of program).
6th, holding stage
In this stage, the interim heating of heater makes the temperature in the bottom of a pan be maintained at 72 DEG C, now whole cooking process knot
Bundle, and openable lid body eats rice.
So far, first embodiment of the invention pressure-adjustable heating cooking device introduction finishes.
2nd, second embodiment
In second exemplary embodiment of the present invention, additionally provide a kind of other pressure-adjustable heating cooking
Device.This pressure-adjustable heating cooking device is substantially similar with the structure of the pressure-adjustable heating cooking device of first embodiment, area
It is not only that：Increased a spring structure in the second pressure regulator valve again.
Fig. 7 is the structural representation according to second embodiment of the invention pressure-adjustable heating cooking device.Fig. 8 is Fig. 7 institute
Show the structural representation of the second pressure regulator valve in pressure-adjustable heating cooking device.As shown in Figure 7 and Figure 8, in the second pressure regulator valve
Between the inner cover plate 220 of the bottom of the sliding part of slide-valve and lid, increased the 3rd compression spring 560.3rd compression bullet
The support force of spring is about the same with the weight of electrodeless regulating valve 550, and (for example bonnet is in a1 in its natural state to make the second pressure regulator valve
Position) be in open path state, thus allow this second pressure regulator valve to pressure controlled minima can from the beginning of 1.00atm,
Increased the controlled range of the second pressure regulator valve.
For the second regulating valve in first embodiment, due to electrodeless regulating valve, the assembly such as the second compression spring and bonnet
The gravity reason of itself, the control to pressure is unable to reach from 1.00atm, general minima from 1.05atm about from the beginning of.This reality
Apply the second regulating valve in example, just solve the deficiency of said structure due to increased the 3rd compression spring, such that it is able to
Accurately realize the change of pressure between 1.0 to 1.2atm, this especially has to the soft or rigid food materials outside cooked rice
Profit.
So far, already in connection with accompanying drawing, the embodiment of the present invention has been described in detail.According to above description, art technology
Personnel should have to pressure-adjustable heating cooking device of the present invention and clearly recognize.
Additionally, the above-mentioned definition to each element and method is not limited in various concrete structures, the shape mentioned in embodiment
Shape or mode, those of ordinary skill in the art can simply be changed to it or be replaced, for example：First compression spring, second
Compression spring and the 3rd compression spring can also be replaced with other suitable elastic components.
In sum, pressure-adjustable heating cooking device of the present invention passes through stabiliser bar, spring is combined with limiting section, makes gold
The position belonging to ball is relatively fixed, even if thus rocking this heating cooking device in the case of unintentional, steam is also not in escape
Phenomenon, it is to avoid the generation of steam casualty accident.Meanwhile, by improving to the type of drive of the second pressure regulator valve, improve
The accuracy controlling and reliability, are conducive to cooking more delicious food.
Particular embodiments described above, has carried out detailed further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail bright, be should be understood that the specific embodiment that the foregoing is only the present invention, be not limited to the present invention, all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement done etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (15)
1. a kind of pressure-adjustable heating cooking device is it is characterised in that include：
Cooking space, it accommodates cooked thing；
Steam spill cavity, it is connected with described cooking space by the first passage (250)；And
First pressure regulator valve (400), is installed on described steam and overflows intracavity, and it controls the opening and closing of described first passage (250), bag
Include：
Sphere (430), it is placed on above described first passage (250)；And
Stabiliser bar (440), it has a horizontally movable limiting section (442), under the drive of this limiting section (442), described
Sphere (430) can scroll forward and backward, thus opening or closing described first passage, and, the activity of described sphere (430)
Space is limited in the inner space that described limiting section (442) is limited.
2. pressure-adjustable heating cooking device according to claim 1 is it is characterised in that described sphere (430) and institute
State distance inside limiting section (442) between 0.2mm-1.5mm.
3. pressure-adjustable heating cooking device according to claim 1 is it is characterised in that the limiting section of described stabiliser bar
(442) it is in：
Annular, is surrounded on the periphery of described sphere (430) horizontal direction；Or
Semicircle, is fastened on described sphere (430) first half.
4. pressure-adjustable heating cooking device according to claim 3 is it is characterised in that the limiting section of described stabiliser bar
(442) ringwise；
Wherein, this annular is annular, octagon annular, regular hexagon are annular or square is annular.
5. pressure-adjustable heating cooking device according to claim 1 is it is characterised in that described first pressure regulator valve (400)
Also include：
Cover body (410), surrounds the first valve space in the periphery of described first passage (250), offers push-and-pull hole on its surface
(411)；
First drive mechanism (460), its anterior movable terminal stretches into described steam and overflows intracavity；
Described stabiliser bar (440) also includes：Push-and-pull portion (441), in " T " font rotating 90 °, its narrow end passes through on cover body
Push-and-pull hole (411) is stretched in described first valve space, and described limiting section (442) is fixing, and it is located at described first valve space
There is between outer thicker end and cover body (410) the first compression elastic element (450).
6. pressure-adjustable heating cooking device according to claim 5 is it is characterised in that for described first regulating valve
(400) switch between following two states：
Open mode：The movable terminal of described first drive mechanism (460) is in retracted state, in described first elasticity of compression unit
Under the elastic force active force of part (450), described stabiliser bar (440) retreats, described push-and-pull portion (441) by described sphere (430) from
Position above described first passage (250) is pulled open, and described first passage (250) is opened；
Closed mode：The movable terminal of described first drive mechanism (460) is in the state of stretching out, and overcomes described first elasticity of compression
The elastic force active force of element (450), described stabiliser bar (440) is forwards stretched out, and described push-and-pull portion (441) is by described sphere
(430) it is pushed to above described first passage (250), described first passage (250) is closed.
7. pressure-adjustable heating cooking device according to claim 6 is it is characterised in that described first driver part is tool
There is the plunger type part of solenoid, in the power-off state, its movable terminal is in retracted state.
8. pressure-adjustable heating cooking device according to claim 5 it is characterised in that：
The surface of described cover body is further opened with the location hole being in same level and being oppositely arranged with described push-and-pull hole
(412)；
Described stabiliser bar (440) also includes：Location division (443), in shaft-like, its one end is fixed on described limiting section (442), another
End is stretched out outside described first valve space through described location hole (412).
9. pressure-adjustable heating cooking device according to claim 5 it is characterised in that：
Described sphere (430) is metal ball thing；
Described cover body (410) upper end is uncovered or surface offers bleeder port (413)；
Described first driver part (460) is stretched into described steam and is overflowed the movable terminal of intracavity and the chamber of the steam spill cavity of periphery
Wall seals；And/or
Described first pressure regulator valve (400) also includes：Valve seat (420), it is at least partly fixed in described first valve space, and it is right
The position of the first passage (250) described in Ying Yu is formed with longitudinal steam channel (421)；Described sphere (430) is placed on institute
State the top of steam channel (421), and can move forward and backward.
10. pressure-adjustable heating cooking device according to claim 1 is it is characterised in that described steam spill cavity is also logical
Cross the second passage (260) to be connected with described cooking space；
Described pressure-adjustable heating cooking device also includes：Second pressure regulator valve (500), is installed on described steam and overflows intracavity, use
In control described second passage (260) opening and closing, including：
Motor (510)；
Screw mandrel slide unit (520), it is horizontally disposed with, and the initiating terminal of leading screw connects motor (510)；
L-shaped transmission arm (530), the lid above pivot joint in the middle part of it, its first end is fixed on the slide block of described screw mandrel slide unit (520)
On；
Drive link (540), its upper end abuts or is fixed on the second end of described L-shaped transmission arm (530), and its lower end is worn from top to bottom
Enter described steam and overflow intracavity；
Electrodeless regulating valve (550), its upper end is connected to the lower end of described drive link (540), and its lower end pressure springy is located at institute
State on the second passage (260)；
Wherein, described motor (510), screw mandrel slide unit (520), L-shaped transmission arm (530) are located at outside described steam spill cavity,
The slide block of described motor (510) drive screw slide unit (520) horizontally slips, by L-shaped transmission arm (530) and drive link
(540) gearing, makes described electrodeless regulating valve (550) move up and down, opens or closes described second passage (260).
11. pressure-adjustable heating cooking devices according to claim 10 are it is characterised in that described electrodeless regulating valve
(550) include：
Valve wall (551), it is in the tubular of upper end open, and lower end is fixed and had bleeder port；
Bonnet (552), it is downwardly open, and its upper end compresses or be fixed on the lower end of described drive link (540), the edge of lower end with
The edge of described valve wall upper end is mutually clamped, and this bonnet (552) can be along valve wall (551) longitudinal sliding motion；
Slide-valve (554), its lower end nip portion is pressed on described second passage (260), and its upper end sliding part is in opening upwards
Tubular, be provided with the second compression elastic element (553) between this sliding part and bonnet.
12. pressure-adjustable heating cooking devices according to claim 11 are it is characterised in that the lower side pressure of described slide-valve
Conjunction portion is in blunt point shape, trapezoidal shape or spherical.
13. pressure-adjustable heating cooking devices according to claim 11 are it is characterised in that described second regulating valve
(500) also include：
3rd compression elastic element (560), is arranged between the sliding part of peripheral and described slide-valve of described second passage,
Its support force is suitable with the weight of described electrodeless regulating valve (550).
The 14. pressure-adjustable heating cooking devices according to any one of claim 1 to 13 are it is characterised in that also include：
Cooking pot body (100)；And
Lid (200), is placed on the peristome on described cooking pot body (100) top, forms a cooked thing of receiving between the two
Cooking space, including：
Inner cover plate (220), it is placed on the peristome of described cooking pot body (100)；
Outer cover case (230), it is located at the top of described inner cover plate, and keeps at a certain distance away with described inner cover plate, shape between the two
Become an accommodation space；And
Frame section (240), forms described steam spill cavity and a steam between described inner cover plate (220) and outer cover case (230)
Path, this steam spill cavity is connected with cooking space by the first passage (250) being opened in inner cover plate, and by steaming
Vapour passage is connected with space outerpace.
The 15. pressure-adjustable heating cooking devices according to any one of claim 1 to 13 are it is characterised in that also include：
Pressure transducer, it monitors the pressure condition in described cooking space；
Temperature sensor, it monitors the temperature regime in described cooking space；
Pressure regulation valve control device, it is according to described in the culinary art Row control by described pressure condition, temperature regime and itself storage
The opening and closing of the first pressure regulator valve.
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| CN201510068349.3A CN104586248B (en) | 2015-02-10 | 2015-02-10 | Pressure-adjustable heating cooking device |
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| JP2011005004A (en) * | 2009-06-26 | 2011-01-13 | Mitsubishi Electric Corp | Cooker |
| CN202636580U (en) * | 2012-05-08 | 2013-01-02 | 珠海格力电器股份有限公司 | Electric cooker and cover opening safety protection device thereof |
| CN203153387U (en) * | 2012-05-16 | 2013-08-28 | 象印魔法瓶株式会社 | Heating cooker |
| CN103989400A (en) * | 2013-02-20 | 2014-08-20 | 松下电器产业株式会社 | Pressure type cooker |
| CN204483837U (en) * | 2015-02-10 | 2015-07-22 | 北京星八子科技有限公司 | Pressure-adjustable heating cooking device |
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