CN105167591A - Electric pressure cooker cover and electric pressure cooker with same - Google Patents
Electric pressure cooker cover and electric pressure cooker with same Download PDFInfo
- Publication number
- CN105167591A CN105167591A CN201510715876.9A CN201510715876A CN105167591A CN 105167591 A CN105167591 A CN 105167591A CN 201510715876 A CN201510715876 A CN 201510715876A CN 105167591 A CN105167591 A CN 105167591A
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- electric pressure
- float
- pressure cooker
- lid
- fulcrum pin
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- 238000010411 cooking Methods 0.000 claims abstract description 33
- 230000000694 effects Effects 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 17
- 230000013011 mating Effects 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 8
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- 238000009835 boiling Methods 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 11
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Abstract
The invention relates to an electric pressure cooker cover which comprises a control device and a floater assembly. The floater assembly comprises a floater shaft, and the floater shaft is structured in the mode that the floater shaft rises under the action of pressure and resets after the pressure is eliminated. The floater shaft is provided with a triggering element. A switch element and a temperature sensing element are further arranged on the electric pressure cooker cover and are connected with the control device. The triggering element triggers the switch element when the floater shaft rises. According to the electric pressure cooker cover, the local boiling point temperature can be accurately measured in the working process of the electric pressure cooker so that high altitudes can be judged, and accordingly the electric pressure cooker can determine different cooking procedures according to different altitudes to achieve a good cooking effect. The invention further relates to the electric pressure cooker.
Description
Technical field
The present invention relates to field of kitchen electric appliance, be specifically related to a kind of lid of electric pressure cooker.The present invention also relates to the electric pressure cooking saucepan with this lid of electric pressure cooker.
Background technology
Electric pressure cooking saucepan is very common kitchen appliance, and it utilizes hot gas during liquid boiling in pot to realize the sealing of float-controlled valve on pot cover usually, thus improves pot inner pressure and temperature, to save time the object of power saving to reach cooking process.But, in the area that height above sea level is different, the boiling point of liquid is different, the situation that therefore may occur is, the electric pressure cooking saucepan used in low altitude area, uses if take high altitude localities, then due to liquid boiling in pot comparatively early (boiling point is lower) and enter heat-insulation pressure keeping process in advance, so, after the heat-insulation pressure keeping time determined, fail to reach the culinary art effect of expection.That is, same cooking process is not also suitable for different height above sea levels.
But there is not the electric pressure cooking saucepan that automatically can adjust cooking process according to height above sea level in prior art, its main cause is not exist in prior art the electric pressure cooking saucepan product that can realize High aititude and detect.
Summary of the invention
Based on above-mentioned present situation, main purpose of the present invention is to provide a kind of lid of electric pressure cooker, and it can measure local boiling temperature exactly in the course of work of electric pressure cooking saucepan, thus can carry out High aititude judgement.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of lid of electric pressure cooker, it comprises control device and float assembly, described float assembly comprises float fulcrum pin, described float fulcrum pin is configured to rise under the effect of the pressure, and reset after pressure is eliminated, wherein, described float fulcrum pin is provided with trigger element, described electric pressure cooking saucepan covers the switch element and temperature-sensing element that are also provided with and are all connected with described control device, and when described float fulcrum pin rises, described trigger element triggers described switch element.
Preferably, described trigger element comprises magnetic element, and described switch element comprises tongue tube or Hall element.
Preferably, described lid of electric pressure cooker comprises cylinder cap and inner cap, and described float assembly is arranged on described cylinder cap, described switch element be arranged on described in cover.
Preferably, cover and be provided with mating holes in described, described float fulcrum pin rises up to being at least partially located in described mating holes.
Preferably, described lid of electric pressure cooker also comprises exhaust valve component.
Preferably, described exhaust valve component comprises electromagnetic valve component and pressure limiting valve assembly, and described electromagnetic valve component is connected with described control device.
Preferably, described float assembly also comprises float seat, float cover and is arranged on the elastic sealing element between described float seat and float cover, the bottom of described float cover is provided with the first through hole, and described float fulcrum pin is arranged in the cavity that described elastic sealing element and described float seat are formed slidably.
Preferably, the top of described float seat is provided with the second through hole, and the upper end of described float fulcrum pin is through described second through hole.
Preferably, the lower end of described float fulcrum pin is provided with flange, is provided with back-moving spring between described flange and described float seat.
Preferably, described elastic sealing element is elastic packing silica gel.
Another aspect of the present invention object is to provide a kind of electric pressure cooking saucepan, and it comprises foregoing lid of electric pressure cooker.
Lid of electric pressure cooker of the present invention can measure local boiling temperature exactly in the course of work of electric pressure cooking saucepan, thus can High aititude judgement be carried out, and then make corresponding electric pressure cooking saucepan can determine different cooking process according to different height above sea level, reach and cook effect preferably.The float of the preferred structure that electric pressure cooking saucepan of the present invention covers seals completely, and in pot, gas can not enter in the space of pot cover inside by float, can not produce condensed water, also can not produce peculiar smell because condensed water does not wash clean clearly after Long-Time Service in pot cover inside.
Accompanying drawing explanation
Hereinafter with reference to accompanying drawing, the lid of electric pressure cooker according to the preferred embodiment of the present invention is described.In figure:
Fig. 1 is the cross-sectional schematic of the lid of electric pressure cooker of the preferred embodiment of the present invention, state when wherein float is in no pressure;
Fig. 2 is the same cross-sectional schematic of the lid of electric pressure cooker of Fig. 1, and wherein float is in the state after pressure;
Fig. 3 is the assembling schematic diagram of the float assembly of preferred structure of the present invention;
Fig. 4 is the decomposing schematic representation of the float assembly of Fig. 3.
Detailed description of the invention
Described in background technology part, electric pressure cooking saucepan product of the prior art can not realize High aititude and detect, thus its territorial scope be suitable for is caused to limit to some extent, such as when it to be transferred to another height above sea level regional from the area of a height above sea level, the change of culinary art effect often occurs, and this change normally causes the taste bad of food.
For this problem, first the present invention recognizes, by detecting boiling point (normally the boiling point of the water) temperature of liquid in pot, can convert out the height above sea level of region residing for electric pressure cooking saucepan.Usually, the measurement of temperature is easy, such as, can in pot (as inside pot cover) temperature-sensing element is set, thus measure kettle temperature in real time.But, because kettle temperature is almost continually varying, such as, be first heated to boiling point from normal temperature, enter pressure pressurize program immediately, and after upper pressure, kettle temperature continue to be increased to the value of mating with pot inner pressure.Therefore, when carry out temperature detection, also, when read the signal of temperature-sensing element, whether accurate for the boiling temperature recorded, be vital.To this, the present invention, in conjunction with the work characteristics of electric pressure cooking saucepan, creatively expects, can in pot on pressure moment carry out temperature survey, the now vertical motion of float can be used for triggering.Because the pressure in pot before upper pressure still equals local atmospheric pressure, thus the kettle temperature value in this moment has not exceeded the boiling point values under normal pressure, therefore, converts height above sea level be considered to accurately by the temperature that this moment records.
Based on above-mentioned thinking, the invention provides a kind of electric pressure cooking saucepan, in particular, provide a kind of lid of electric pressure cooker for electric pressure cooking saucepan, make corresponding electric pressure cooking saucepan can measure local boiling temperature exactly, thus can High aititude judgement be carried out.
Particularly, see Fig. 1-2, a kind of lid of electric pressure cooker of the present invention, it comprises control device (such as control circuit, not shown) and float assembly 1.Described float assembly 1 comprises float fulcrum pin 101, described float fulcrum pin 101 is configured to rise under the effect of the pressure, and reset after pressure is eliminated, also be, when lid of electric pressure cooker of the present invention is with during to electric pressure cooking saucepan, when pressing in pot, float fulcrum pin 101 can rise under the effect of pot inner pressure, and before upper pressure or after pressure release, float fulcrum pin 101 is in original position or self-resetting (such as falling to original position).The basic structure of this float assembly 1 can be identical with float assembly existing in prior art.
In order to realize the Measurement accuracy to boiling point, lid of electric pressure cooker of the present invention is arranged to, described float fulcrum pin 101 is provided with trigger element 102, described electric pressure cooking saucepan covers the switch element 2 and temperature-sensing element 3 that are also provided with and are all connected with described control device, and when described float fulcrum pin 101 rises, described trigger element 102 triggers described switch element 2.
Because switch element 2 is connected with control device, when switch element 2 be triggered element 102 trigger time, its output signal instantaneous transmission produced is to control device, control device just can read the measuring-signal of temperature-sensing element 3 now, obtain the temperature value of pressing moment thus, this temperature value can think local boiling point values, and then, just easily can convert out the height above sea level residing for locality according to this boiling point values.
Preferably, switch element 2 can select non-contact switch element, thus when float fulcrum pin 101 rises, trigger element 102 can complete triggering near switch element 2.Preferably, described trigger element 102 comprises magnetic element, and described switch element 3 comprises tongue tube or Hall element.When magnetic element is near tongue tube or Hall element, tongue tube or Hall element correspondingly produce output signal, and transfer to control device.
Preferably, lid of electric pressure cooker of the present invention also comprises cylinder cap 4 and inner cap 5, and described float assembly 1 such as can be arranged on described cylinder cap 4, and described switch element 2 can be arranged on described inner cap 5.In the present invention, cylinder cap 4 refers to the innermost layer lid in directly space in pot, and inner cap 5 is then positioned at the top of cylinder cap 4, such as, be positioned between cylinder cap 4 and cover 6 (as shown in Figure 1-2, the outermost layer lid of pot cover).In this case, trigger element 102 such as can be arranged on the top of float fulcrum pin 101, such as, be embedded in (as shown in Figure 3) in its top end face, enough little to guarantee the distance between switch element 2.
Preferably, described inner cap 5 is provided with mating holes 51, and described float fulcrum pin 101 rises up to being at least partially located in described mating holes 51, as shown in Figure 2.
Due to inner cap be fixed (such as by bearing pin and base hinged, can not rotate relative to pot body after closing lid), and cylinder cap (itself and cover are fixed together) fastens, and directly and base hinged, but can rotate within the specific limits relative to inner cap, also namely can rotate (such as within the specific limits relative to pot body when closing lid, cylinder cap is provided with lead, such as steel column, inside cover, be provided with guide groove, lead is arranged in this guide groove slidably, cylinder cap just can be driven to rotate when rotating pot-cover handle).Can not uncap when cylinder cap is rotated to closed position, and can uncap when being rotated to the position departing from and fasten.
Therefore, when float assembly is arranged on cylinder cap, before float fulcrum pin rises, can relatively rotate between inner cap and cylinder cap, thus lid of electric pressure cooker can freely be opened, and when pot cover be positioned at closed position and when float fulcrum pin rise after, because float fulcrum pin is arranged in the mating holes of inner cap at least in part, this float fulcrum pin now can play the effect of bearing pin, make cannot relatively rotate between inner cap and cylinder cap, thus pot cover cannot rotate to from closed position the position departing from and fasten, thus under can preventing the state having pressure in pot, pot cover is opened.
Preferably, as shown in Figure 1-2, described lid of electric pressure cooker of the present invention also comprises exhaust valve component.Exhaust valve component for discharging the gas in pot, such as, discharges cold air etc. in pot in temperature-rise period.Also namely, lid of electric pressure cooker of the present invention only utilizes float carry out the triggering of switch and prevent from uncapping, and is not exhausted (as float-controlled valve of the prior art) by float.
Preferably, described exhaust valve component comprises electromagnetic valve component 7 and pressure limiting valve assembly 8, and described electromagnetic valve component 7 is connected with described control device.Such as; electromagnetic valve component 7 is arranged on cylinder cap 4; electromagnetic valve component is connected with exhaust pipe of pressure-limiting valve 9 and solenoid valve vents pipe 10; wherein; exhaust pipe of pressure-limiting valve 9 can form exhaust passage with gas in pot, and exhaust pipe of pressure-limiting valve 9 is equipped with pressure limiting valve, does not do exhaust and use (namely under this pressure limiting valve normal operating conditions; normally closed), be only vented when exception or superpressure.Under normal operating conditions, by the break-make of the magnetic valve in control device Controlling solenoid valve assembly, gas in pot is made to discharge or be trapped in pot.
Because lid of electric pressure cooker of the present invention adopts and float phase independently air bleeding valve, float can adopt traditional float-controlled valve, but float and magnetic valve, control device with the use of, do not do pressure front exhaust to use, and only after upper pressure under the effect of the pressure by float fulcrum pin jack-up to prevent from uncapping when having pressure in pot (namely guaranteeing safety), and realize High aititude judgement (namely adapting to the service condition in Different Altitude situation), for this reason, present invention also offers a kind of float of preferred structure, it can adopt hermetic structure, space in lid is entered by float to prevent gas in pot, to prevent peculiar smell.
As shown in Figure 3-4, the float assembly 1 of preferred structure of the present invention is except comprising float fulcrum pin 101, the elastic sealing element 106 also comprising float seat 103, float cover 107 and be arranged between described float seat and float cover, the bottom of described float cover 107 is provided with the first through hole, and described float fulcrum pin 101 is arranged in the cavity that described elastic sealing element 106 is formed with described float seat 103 slidably.
Such as, the float assembly of present embodiment is arranged on cylinder cap 4 on (as shown in Figure 1-2) by float seat 103 with float cover 106 (being such as threaded) therebetween, and seals by means of sealing ring 105.After installation, float cover 107 is space in pot, and the first through hole bottom it can pass through for the hot gas in pot, thus the pressure in pot can act directly on elastic sealing element 106, elastic sealing element 106 is deformed and upwardly float fulcrum pin 101, thus impel float fulcrum pin 101 to rise.
Due to the sealing function of elastic sealing element 106 and sealing ring 105, hot gas in pot can not enter float assembly inside, space in the lid that also can not enter lid of electric pressure cooker through the edge of float assembly, thus the phenomenon that effectively prevent that similar hot gas produces peculiar smell after condensation with accumulating over a long period because being difficult to clean.
Preferably, the top of described float seat 103 is provided with the second through hole, and the upper end of described float fulcrum pin 101 is through described second through hole.Second through hole can play the effect of auxiliary guiding to float fulcrum pin 101, thus prevents float fulcrum pin 101 from deflecting in rise process and affecting triggering precision.
Preferably, the lower end of described float fulcrum pin 101 is provided with flange, is provided with back-moving spring 105 between described flange and described float seat 103.Back-moving spring 105 is such as set on float fulcrum pin 101, and it can assist the reset of float fulcrum pin 101 (falling namely after pressure release), prevents the deformation drag of elastic sealing element 106 from having an impact to reset.
Preferably, described elastic sealing element 106 is elastic packing silica gel.Such as, it has the structure of roughly dish type, and there is annular fold the middle part of dish type, thus annular fold can circumferentially trail under the effect of external force, moves upward so can promote float fulcrum pin 101 in the stroke range determined.
The course of work of the float of preferred structure of the present invention is: under upper pressure condition, elastic packing silica gel is out of shape under the effect of the pressure, by float fulcrum pin jack-up, insert the mating holes being arranged in inner cap, cylinder cap just can not rotate, and just can not uncap smoothly under the state having pressure; After pressure release, pot inner pressure disappears, and float fulcrum pin resets under the effect of gravity and back-moving spring, elastic packing silica gel resiles, and float recovers normal condition, after float fulcrum pin falls, float fulcrum pin is separated with the interior mating holes covered, and cylinder cap can rotate, and just can uncap smoothly.
The float of preferred structure of the present invention when not changing electric pressure cooker structure, can realize the function of common voltage power pot float, and before avoiding pressure, in pot, gas enters space in lid simultaneously, is difficult to cleaning.
The course of work that lid of electric pressure cooker carries out height above sea level judgement by means of float is then: in electric pressure cooking saucepan pot after pressure, by the distortion of elastic packing silica gel by float jack-up, the magnetic element of buoy top is near being positioned at the tongue tube or Hall element that cover, tongue tube or Hall element detect signal action later, transmission of signal is to control device, simultaneously by top temperature-sensing element detection temperature now, determine boiling point, the judgement of height above sea level is realized by different boiling points, different cooking process is entered after judging height above sea level, meet the condition worked in Different Altitude (especially High aititude) situation.Such as, be provided with the cooking process corresponding from different boiling points in control device, these cooking process, can be different on heating duty ratio (different capacity heating), dwell time and exhaust mode according to the difference of boiling point.
When this float to match with electromagnetic valve component carry out work time, the course of work of lid of electric pressure cooker of the present invention is: electric pressure cooking saucepan is opened by control device Controlling solenoid valve before pressure, and the cold air in pot is discharged by solenoid valve vents pipe and the extraneous exhaust passage formed after opening by magnetic valve; After the temperature-sensing element on cylinder cap detects that temperature reaches setting value (such as lower than 90 DEG C), control circuit Controlling solenoid valve is closed, pressure increase in pot, elastic packing silica gel distortion under the effect of the pressure bottom float assembly, by float fulcrum pin jack-up, insert the mating holes being arranged in inner cap, cylinder cap just can not rotate, and just can not uncap smoothly under the state having pressure; After pressure release, pot inner pressure disappearance float fulcrum pin resets under the effect of gravity and back-moving spring, and elastic packing silica gel resiles, float recovers normal condition, and after float fulcrum pin falls, float fulcrum pin is separated with the interior mating holes covered, cylinder cap can rotate, and just can uncap smoothly.
Those skilled in the art will readily understand, under the prerequisite of not conflicting, above-mentioned each advantageous manner freely can combine, superpose.
Be to be understood that, above-mentioned embodiment is only exemplary, and it is nonrestrictive, when not departing from general principle of the present invention, the various obvious or equivalent amendment that those skilled in the art can make for above-mentioned details or replacement, all will be contained in right of the present invention.
Claims (11)
1. a lid of electric pressure cooker, it comprises control device and float assembly, described float assembly comprises float fulcrum pin, described float fulcrum pin is configured to rise under the effect of the pressure, and reset after pressure is eliminated, it is characterized in that, described float fulcrum pin is provided with trigger element, described electric pressure cooking saucepan covers the switch element and temperature-sensing element that are also provided with and are all connected with described control device, and when described float fulcrum pin rises, described trigger element triggers described switch element.
2. lid of electric pressure cooker according to claim 1, is characterized in that, described trigger element comprises magnetic element, and described switch element comprises tongue tube or Hall element.
3. lid of electric pressure cooker according to claim 1 and 2, is characterized in that, described lid of electric pressure cooker comprises cylinder cap and inner cap, and described float assembly is arranged on described cylinder cap, described switch element be arranged on described in cover.
4. lid of electric pressure cooker according to claim 3, is characterized in that, covers and be provided with mating holes in described, and described float fulcrum pin rises up to being at least partially located in described mating holes.
5. according to the lid of electric pressure cooker one of claim 1-4 Suo Shu, it is characterized in that, described lid of electric pressure cooker also comprises exhaust valve component.
6. lid of electric pressure cooker according to claim 5, is characterized in that, described exhaust valve component comprises electromagnetic valve component and pressure limiting valve assembly, and described electromagnetic valve component is connected with described control device.
7. according to the lid of electric pressure cooker one of claim 1-6 Suo Shu, it is characterized in that, described float assembly also comprises float seat, float cover and is arranged on the elastic sealing element between described float seat and float cover, the bottom of described float cover is provided with the first through hole, and described float fulcrum pin is arranged in the cavity that described elastic sealing element and described float seat are formed slidably.
8. lid of electric pressure cooker according to claim 7, is characterized in that, the top of described float seat is provided with the second through hole, and the upper end of described float fulcrum pin is through described second through hole.
9. the lid of electric pressure cooker according to claim 7 or 8, is characterized in that, the lower end of described float fulcrum pin is provided with flange, is provided with back-moving spring between described flange and described float seat.
10. according to the lid of electric pressure cooker one of claim 7-9 Suo Shu, it is characterized in that, described elastic sealing element is elastic packing silica gel.
11. 1 kinds of electric pressure cooking saucepans, is characterized in that, it comprises according to the lid of electric pressure cooker one of claim 1-10 Suo Shu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510715876.9A CN105167591B (en) | 2015-10-28 | 2015-10-28 | Lid of electric pressure cooker and electric pressure cooking saucepan with it |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510715876.9A CN105167591B (en) | 2015-10-28 | 2015-10-28 | Lid of electric pressure cooker and electric pressure cooking saucepan with it |
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| CN105167591A true CN105167591A (en) | 2015-12-23 |
| CN105167591B CN105167591B (en) | 2018-10-19 |
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| CN105902151A (en) * | 2016-06-30 | 2016-08-31 | 佛山市顺德区美的电热电器制造有限公司 | Pressure limiting protection method and device, and pressure cooking utensil |
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