CN105125069A - Pressure detection structure and electric pressure cooker - Google Patents
Pressure detection structure and electric pressure cooker Download PDFInfo
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- CN105125069A CN105125069A CN201510680128.1A CN201510680128A CN105125069A CN 105125069 A CN105125069 A CN 105125069A CN 201510680128 A CN201510680128 A CN 201510680128A CN 105125069 A CN105125069 A CN 105125069A
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Abstract
The invention discloses a pressure detection structure and an electric pressure cooker and relates to the field of household appliances, for detecting the pressure inside the electric pressure cooker. The pressure detection structure comprises a floater structure and a displacement detector, wherein the floater structure is mounted on a lid of the electric pressure cooker, and the displacement detector is used for detecting the displacement of a movable part of the floater structure. According to the technical scheme, through the displacement detector, the movement of the movable part of the floater structure can be detected, and thus the pressure inside the cooker is detected; in addition, the displacement detector is connected with the controller, and thus the control on the pressure inside the cooker is realized.
Description
Technical field
The present invention relates to household appliance technical field, be specifically related to a kind of pressure detection structure and electric pressure cooking saucepan.
Background technology
Electric pressure cooking saucepan in use needs to control its pressure, to ensure the security used.The pressure detecting of existing electric pressure cooking saucepan controls mainly through pressure switch, and pressure switch can only control a force value disconnected.
Inventor finds, at least there is following problems in prior art: the pressure switch that electric pressure cooking saucepan uses at present can only control opening pressure, cannot know pot inner pressure situation.
Summary of the invention
One of them object of the present invention proposes a kind of pressure detection structure and electric pressure cooking saucepan, in order to realize the detection to Voltage force pot inner pressure.
For achieving the above object, the invention provides following technical scheme:
The invention provides a kind of pressure detection structure, comprise Floater Structure and displacement detector; Described Floater Structure is arranged on pressure cooker cover, and described displacement detector is for detecting the displacement of the movable part of described Floater Structure.
In an alternate embodiment of the invention, described displacement detector comprises optoelectronic switch, and described optoelectronic switch is connected with described pressure cooker cover, and described optoelectronic switch is positioned on the moving direction of the movable part of described Floater Structure.
In an alternate embodiment of the invention, described displacement detector comprises Hall element and magnet;
Described magnet is located at one end of the movable part of described Floater Structure, and described Hall element is connected with described pressure cooker cover, and described Hall element is positioned on the moving direction of the movable part of described Floater Structure.
In an alternate embodiment of the invention, described displacement detector comprises tongue tube and magnet;
Described magnet is located at one end of the movable part of described Floater Structure, and described tongue tube is connected with described pressure cooker cover, and described tongue tube is positioned on the moving direction of the movable part of described Floater Structure.
In an alternate embodiment of the invention,
Described displacement detector comprises microswitch; Described microswitch is connected with described pressure cooker cover, or described microswitch is connected with the fixed part of described Floater Structure; Or,
Described displacement detector comprises touch-switch; Described touch-switch is connected with described pressure cooker cover, or described touch-switch is connected with the fixed part of described Floater Structure.
In an alternate embodiment of the invention, the fixed part of described Floater Structure has cavity, air admission hole and steam vent, described air admission hole and described steam vent all with described cavity connects;
The movable part of described Floater Structure is arranged in described cavity at least partly and described air admission hole is not communicated with described steam vent;
Wherein, described movable part can move to the position that described air admission hole is communicated with steam vent under the gas pressure entered via described air admission hole.
In an alternate embodiment of the invention, described fixed part comprises supporting seat, and described movable part comprises fly rod;
Described supporting seat is provided with described cavity, described air admission hole and described steam vent; Described fly rod has first end and the second end, and described first end is towards described air admission hole, and airtight between described first end and described cavity inner wall.
In an alternate embodiment of the invention, pressure detection structure also comprises reposition element;
Described reposition element is connected with described fly rod, and described reposition element is provided for the described fly rod after by described gas push and resets.
In an alternate embodiment of the invention, described supporting seat comprises float valve gap and float valve seat; Described float-controlled valve cover buckle is located at outside described float valve seat, and both are threaded;
Described float valve seat one end is provided with described air admission hole, and the described float valve seat other end is uncovered, and the sidewall of described float valve seat offers the first opening; The sidewall of described float valve gap is provided with the second opening; Described first opening and described second open communication, using common as described steam vent.
In an alternate embodiment of the invention, described float valve seat is provided with the convex edge of evagination towards one end of described air admission hole, have the fixing clearance for sandwiched pressure cooker cover between described float valve gap and described convex edge.
In an alternate embodiment of the invention, pressure detection structure also comprises moving-member;
Described moving-member is movably arranged on described pressure cooker cover, under original state, has gap between described moving-member and described pressure cooker cover; When the liquid in electric pressure cooking saucepan is in fluidized state, described moving-member can move to the position making described moving-member and the sealing of described pressure cooker cover.
In an alternate embodiment of the invention, pressure detection structure also comprises seal, and described seal is located at described moving-member, and is positioned at the side of described moving-member towards described electric pressure cooking saucepan pot.
In an alternate embodiment of the invention, pressure detection structure also comprises the position detector for detecting described moving-member position, and described position detector is arranged on described pressure cooker cover.
In an alternate embodiment of the invention, described pressure cooker cover comprises the first lid and the second lid, and described first lid is provided with the first through hole, and described second lid is provided with the second through hole; Described first through hole and described second through hole communicate;
Described moving-member is arranged in described first through hole, and described position detector is arranged on above described second through hole;
Wherein, when the liquid in electric pressure cooking saucepan is in fluidized state, described moving-member can move to the position that one end is arranged in described second through hole.
The present invention also provides a kind of electric pressure cooking saucepan, and it comprises the pressure detection structure that the arbitrary technical scheme of the present invention provides.
Based on technique scheme, the embodiment of the present invention at least can produce following technique effect: technique scheme, can be detected the displacement of the movable part of Floater Structure by displacement detector, and then realizes the detection to pot inner pressure.Further, displacement detector is connected with controller, the control to pot inner pressure can also be realized.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is applied in the schematic diagram on electric pressure cooking saucepan for pressure detection structure that the embodiment of the present invention provides;
The pressure detection structure schematic diagram in a state of nature that Fig. 2 provides for the embodiment of the present invention;
The local state enlarged diagram that the pressure detection structure that Fig. 3 provides for the embodiment of the present invention is in use;
Fig. 4 carries out the local state enlarged diagram of pressure release for pressure detection structure that the embodiment of the present invention provides;
Fig. 5 is the school out position characteristic schematic diagram of optoelectronic switch;
Fig. 6 is the Cleaning Principle schematic diagram of optoelectronic switch;
In the pressure detection structure that Fig. 7 provides for the embodiment of the present invention two, moving-member is in the structural representation of non-lifting position;
In the pressure detection structure that Fig. 8 provides for the embodiment of the present invention two, moving-member is in the structural representation of lifting position.
Reference numeral:
1, supporting seat; 2, fly rod; 3, displacement detector;
4, reposition element; 5, steel lid; 6, inner cap;
9, sealing ring; 11, cavity; 12, air admission hole;
13, steam vent; 14, hole is stretched out; 15, float valve gap;
16, float valve seat; 17, convex edge; 21, first end;
22, the second end; 7, moving-member; 8, seal;
9, position detector; 51, the first through hole; 61, the second through hole.
Detailed description of the invention
Below in conjunction with the elaboration that Fig. 1 ~ Fig. 6 carries out specifically to technical scheme provided by the invention.
The embodiment of the present invention one provides a kind of pressure detection structure, and it can be used on the pressure cooker cover of electric pressure cooking saucepan, or has on other products of similar structures and demand.For ease of describing, so that pressure detection structure is applied on the pressure cooker cover of the following structure of electric pressure cooking saucepan.Pressure cooker cover comprises the first lid (being specially steel lid 5), the second lid (being specially inner cap 6), cover and cover cosmetic sheet from the bottom to top successively.Wherein, inner cap 6 and cover are fixed together by buckle and screw, and cover cosmetic sheet and cover are fixed together by buckle and screw.
See Fig. 1 to Fig. 6, the embodiment of the present invention one provides a kind of pressure detection structure, comprises Floater Structure and displacement detector 3; Floater Structure is for being arranged on pressure cooker cover, and displacement detector 3 is for detecting the displacement of the movable part of Floater Structure.
Floater Structure comprises fixed part and movable part, and movable part can float under pot inner pressure effect.Pressure signal in pot, by the displacement detecting to movable part, is converted into current signal by displacement detector 3, thus accurately measures and control the size of pot inner pressure.
Technique scheme, can detect the displacement of the movable part of Floater Structure by displacement detector 3, and then realizes the measurement to pot inner pressure.Further, displacement detector 3 is connected with controller, just can realizes the control to pot inner pressure.Specifically can reach by the control of program to kettle temperature the object controlling internal pressure.After reaching boiling point, pressure becomes certain relation with temperature.The top of electric pressure cooking saucepan and bottom are respectively equipped with top temperature-sensitive bag and bottom temperature-sensitive bag.In addition, by the judgement to pot inner pressure, zero-pressure can be shown by circuit design on the display interface of electric pressure cooking saucepan, thus realize safe opening.
Introduce the specific implementation of Floater Structure below.See Fig. 3 and Fig. 4, Floater Structure comprises fixed part and movable part; Fixed part has cavity 11, air admission hole 12 and steam vent 13, and air admission hole 12 is all communicated with cavity 11 with steam vent 13.The movable part of Floater Structure is arranged in cavity 11 at least partly and air admission hole 12 is not communicated with steam vent 13.Wherein, movable part can move to the position that air admission hole 12 is communicated with steam vent 13 under the gas pressure entered via air admission hole 12.
Technique scheme, is provided with steam vent 13, exceedes certain pressure value and carries out safety relief.
In an embodiment, fixed part comprises supporting seat 1, and movable part comprises fly rod 2.Supporting seat 1 is provided with cavity 11, air admission hole 12 and steam vent 13; Fly rod 2 has first end 21 and the second end 22, and first end 21 is towards air admission hole 12, and airtight between first end 21 and cavity 11 inwall.
See Fig. 2, Fig. 3 and Fig. 4.Wherein, Fig. 2 illustrates reset condition, and now electric pressure cooking saucepan pot is interior without pressure, and in a state of nature, fly rod 2 first end 21 is positioned at above air admission hole 12 fly rod 2, does not have displacement.Fig. 3 illustrates intermediateness, now have certain pressure in electric pressure cooking saucepan pot, fly rod 2 starts to float, and fly rod 2 moves up under the pressure of pot inner high voltage gas, but fly rod 2 first end 21 is still positioned at below steam vent 13, and whole pressure detection structure is not now exhausted operation.Fig. 4 illustrates the state that pressure detection structure is exhausted.Now electric pressure cooking saucepan pot inner pressure exceedes setting value, fly rod 2 floats up to and makes fly rod 2 first end 21 be positioned at above steam vent 13, and air admission hole 12 is communicated with steam vent 13, and whole pressure detection structure is now exhausted operation, realize safety relief, to ensure the security that electric pressure cooking saucepan uses.
Hold above-mentioned, pressure detection structure also comprises displacement detector 3.Supporting seat 1 is also provided with and stretches out hole 14, and the second end 22 of fly rod 2 can stretch out supporting seat 1 via stretching out hole 14.Displacement detector 3 is for detecting the position of the second end 22 of fly rod 2.
Displacement detector 3 can be arranged in pressure cooker cover and cover; Without in the pressure cooker cover of inner cap, displacement detector 3 can be arranged on cover.
When pressure in pot is enough large, displacement detector 3 can produce corresponding current signal according to the position of the second end 22 of the fly rod 2 detected, and feeding back to the controller be connected with displacement detector 3, controller according to this current signal, can control the temperature in pot.Because temperature and pressure exist certain relation, therefore by the control to temperature, the object that pot inner pressure is controlled can be realized.
See Fig. 1 and Fig. 2, herein, pressure detection structure also comprises reposition element 4.Reposition element 4 is connected with fly rod 2, and reposition element 4 is provided for the fly rod after by gas push 2 and resets.
See Fig. 1 and Fig. 2, reposition element 4 is spring, and it is outside that spring housing is located at fly rod 2, and one end of spring is supported on the first end 21 of fly rod 2, and the second end 22 of spring is supported on the inwall of supporting seat 1.
Introduce the specific implementation of supporting seat 1 below.See Fig. 1, supporting seat 1 comprises float valve gap 15 and float valve seat 16; Float valve gap 15 be located in outside float valve seat 16, and both are threaded.Float valve seat 16 one end is provided with air admission hole 12, and float valve seat 16 other end is uncovered, the sidewall of float valve seat 16 offers the first opening; The sidewall of float valve gap 15 is provided with the second opening; First opening and the second open communication, using common as steam vent 13.
Between float valve gap 15 and float valve seat 16, sealing ring 9 can be set, airtight to realize.Adopt the supporting seat 1 of said structure, the steel being convenient to whole pressure detection structure to be arranged on pressure cooker cover covers, and is also convenient to realize pressure detecting.
, needing under the prerequisite arranging displacement detector 3 herein, float valve gap 15 also can be provided with and stretch out hole 14, stretches out hole 14 and is communicated with the other end of float valve seat 16.
Displacement detector 3 can be set directly at and stretches out outside hole 14, both conveniently detects, and facilitates again the installation of parts.
See Fig. 4, in order to setting pressure detection architecture easily, one end that float valve seat 16 is positioned at air admission hole 12 is provided with the convex edge 17 of evagination, has the fixing clearance of the steel lid for sandwiched pressure cooker cover between float valve gap 15 and convex edge 17.
In the present embodiment, displacement detector 3 comprises optoelectronic switch, and optoelectronic switch is connected with pressure cooker cover, and optoelectronic switch is positioned on the moving direction of the movable part of Floater Structure.
Displacement signal for the ease of detecting according to displacement detector 3 controls the pressure in electric pressure cooking saucepan, pressure detection structure also comprises controller, controller is electrically connected with displacement detector 3, and the displacement that controller is used for detecting according to displacement detector 3 controls the force value in electric pressure cooking saucepan.
Optoelectronic switch is comprised for displacement detector 3, the displacement signal detected can be converted to current signal by optoelectronic switch, controller is according to the size of this current signal, the size of the pot inner pressure be applied in float portion can be drawn, and then can control it, such as can continue to increase, be stabilized in present value etc.
Below in conjunction with accompanying drawing, technique scheme is further described:
Pressure detection structure is primarily of the composition such as sealing ring of the sealing ring 9 of optoelectronic switch, inner cap 6, float valve gap 15, fly rod 2, fly rod spring, steel lid 5, float valve seat 16, float valve seat 16, fly rod.
Float valve gap 15, fly rod 2, fly rod spring, float valve seat 16 constitute float assembly.Float assembly is fixed on steel lid 5, and optoelectronic switch is fixed on inner cap 6, detects pot inner pressure by optoelectronic switch, and optoelectronic switch connects on circuit boards.
Wherein, float valve seat 16 can be that aluminum component or aluminum component are embedded in heatproof plastic cement, and float valve gap 15 is aluminum component, is be threaded connection between float valve seat 16 and float valve gap 15, and float valve seat place increases sealing ring 9.
Float valve seat 16 and float valve gap 15 also can with stainless steels etc., and wherein can to embed with aluminum component the frictional force that heatproof plastic cement mainly considers between fly rod sealing ring as far as possible little for float valve seat 16.
When float assembly is in original state, fly rod 2, in the effect of fly rod spring, is in Fig. 2 location status.
Fly rod 2 is away from the optical axis center (i.e. h>3.6+0.4=4mm) of optoelectronic switch, and the relative photoelectric current of optoelectronic switch is 0, signal do not detected, display zero pressure.
After heated by pressure cooker produces steam, pot inner pressure increases, and fly rod 2 constantly rises, and reaches Fig. 3 location status.When pot inner pressure exceedes certain pressure value (being such as the operating pressure of 2.5 times), be in Fig. 4 location status, pot internal gas pressure is exhausted pressure release by float valve seat steam vent and float valve gap steam vent.
A, fly rod 2 slowly diminish with the distance h of the optical axis center of optoelectronic switch, the relative photoelectric current of optoelectronic switch increases (as Fig. 5,6) gradually, and constantly signal (control signal shows different pressure signals according to the size of relative photoelectric current) is sent to controller, controller processes signal, forms different pressure displays.
B, when pot inner pressure has exceeded certain pressure value, fly rod 2 has been in Fig. 4 state, float valve seat steam vent and float valve gap steam vent open-minded, carry out safety relief.
It is 0 (as Fig. 5,6) that c, fly rod 2 and the distance h of optoelectronic switch (1) optical axis center increase to relative photoelectric current, and optoelectronic switch and controller disconnect, and by pressure signal transmission to controller, can realize the judgement to there being pressure in pot.During original state, pot is heating, and the inside is without relative pressure, and the electric current of photoswitc is zero.
This technical scheme can realize the size of accurate detection and control pot inner pressure, safety relief, have pressure and judgement with no pressure to pot inner pressure.
Alternatively, displacement detector 3 can also adopt following implementation.
Mode one: displacement detector 3 comprises Hall element and magnet.Magnet is located at one end of the movable part of Floater Structure, and Hall element is connected with pressure cooker cover, and Hall element is positioned on the moving direction of the movable part of Floater Structure.Use Hall element and magnet, can magnet is arranged on fly rod, cover in Hall element is fixed on and be connected on circuit, by the magnetic flux of Hall element and the relational implementation such scheme of distance.
Mode two: displacement detector 3 comprises tongue tube and magnet.Magnet is located at one end of the movable part of Floater Structure, and tongue tube is connected with pressure cooker cover, and tongue tube is positioned on the moving direction of the movable part of Floater Structure.The principle of Hall element is similar to tongue tube, and be also that the magnetic flux that produced near Hall element by magnet is different, signal magnitude is different.
Mode three: displacement detector 3 comprises microswitch; Microswitch is connected with pressure cooker cover, or microswitch is connected with the fixed part of Floater Structure.By microswitch, microswitch can be arranged in pressure cooker cover and cover and be connected on circuit, zero-pressure display can be realized, to the judgement having pressure with no pressure in pot.
Mode four: displacement detector 3 comprises touch-switch; Touch-switch is connected with pressure cooker cover, or touch-switch is connected with the fixed part of Floater Structure.By touch-switch, touch-switch can be arranged in pressure cooker cover and cover and be connected on circuit, zero-pressure display can be realized, to the judgement having pressure with no pressure in pot.
See Fig. 7 and Fig. 8, the embodiment of the present invention two is on the technical scheme basis of above-described embodiment, and preferably, pressure detection structure also comprises moving-member 7; Moving-member 7 is movably arranged on pressure cooker cover.Under original state, between moving-member 7 and pressure cooker cover, there is gap; When the liquid in electric pressure cooking saucepan is in fluidized state, moving-member 7 can move to the position making moving-member 7 and pressure cooker cover sealing.When the liquid in electric pressure cooking saucepan is in fluidized state, move on moving-member 7 is rapid under gas pressure in pot.
Under original state, have gap between moving-member 7 and pressure cooker cover, now pressure cooker inside communicates with ambient atmosphere; In pot after liquid boiling, moving-member 7 can rise to rapidly the position making moving-member 7 and pressure cooker cover sealing.
Technique scheme, by the position of moving-member, can judge whether have pressure in electric pressure cooking saucepan fast.
Further, pressure detection structure also comprises seal 8, and seal 8 is located at moving-member 7 and is positioned at the side of moving-member 7 towards electric pressure cooking saucepan pot.
Seal is specifically as follows rubber ring.After moving-member 7 rises, seal 8 pushes against with the medial surface of the steel lid 5 of electric pressure cooking saucepan, to make to seal between moving-member 7 and pressure cooker cover.
See Fig. 7 and Fig. 8, pressure detection structure also comprises the position detector 9 for detecting described moving-member position, and position detector 9 is arranged on pressure cooker cover.Position detector 9 is specifically as follows optoelectronic switch etc.Position detector 9 can detect the position of moving-member 7, specifically judges whether moving-member 7 rises.
See Fig. 7 and Fig. 8, the concrete following manner that adopts arranges moving-member 7 and position detector 9, and pressure cooker cover comprises the first lid (being specially steel lid 5) and the second lid (being specially inner cap 6).First lid is provided with the first through hole 51, second lid and is provided with the second through hole 61.First through hole 51 and the second through hole 61 communicate.Moving-member 7 is arranged in the first through hole 51, and position detector 9 is arranged on above the second through hole 61.Wherein, when the liquid in electric pressure cooking saucepan is in fluidized state, moving-member 7 can move to the position that one end (being specially upper end) is arranged in the second through hole 61, to make to seal between moving-member 7 and pressure cooker cover.
See Fig. 7 and Fig. 8.Original state, electric pressure cooking saucepan inside communicates with extraneous air.When relative pressure in pot is zero, moving-member 7 is in the position shown in Fig. 7.After interior pot is heated, be hot gas in pot, pot is cold air outward, defines certain pressure differential, so hot gas is discharged in air by the hole 71 that moving-member 7 is arranged, moving-member 7 rises and seals steel lid 5, as Fig. 8 position.The upper pressure time of this kind of moving-member 7 is short.
Position detector 9 (specifically adopting optoelectronic switch in the present embodiment) can be connected with control circuit, control circuit only judges two positions of moving-member 7, when moving-member 7 is in Fig. 7 position, the circuit of the related circuit of position detector 9 is 0, is judged as zero-pressure.When moving-member 7 is in Fig. 8 position, a certain size current signal of the generation of the related circuit of position detector 9, by the identification of control circuit, is judged as there is pressure in pot.Thus realize having pressure and judgement with no pressure in pot, also namely identification moving-member 7 is in the judgement that original state and moving-member 7 are in pressure condition.
Visible, above-mentioned moving-member 7, seal 8 and position detector 9 can judge whether have pressure in pot quickly.When in pot, water temperature rises to boiling point, moving-member 7 rises to rapidly the state of sealed electrical pressure cooker.Position according to moving-member 7 just can play indicative function in pot with or without pressure easily.Further, in conjunction with kettle temperature sensor, whether can also be in High aititude to pressure cooker and judge.
The embodiment of the present invention reoffers a kind of electric pressure cooking saucepan, and it comprises the pressure detection structure that the arbitrary technical scheme of the present invention provides.
In describing the invention; it will be appreciated that; term " orientation or the position relationship of the instruction such as " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " be based on orientation shown in the drawings or position relationship; be only for ease of describing the present invention and simplified characterization; instead of indicate or infer the device of indication or element must have specific orientation, be specific azimuth configuration and operation, thus can not be interpreted as restriction the present invention being protected to content.
If employ the word such as " first ", " second " herein to limit parts, those skilled in the art should know: the use of " first ", " second " is only used to be convenient to describe the present invention and simplified characterization, as do not stated in addition, the implication that above-mentioned word is not special.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or equivalent replacement is carried out to wherein portion of techniques feature, but these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (15)
1. a pressure detection structure, is characterized in that, comprises Floater Structure and displacement detector; Described Floater Structure is arranged on pressure cooker cover, and described displacement detector is for detecting the displacement of the movable part of described Floater Structure.
2. pressure detection structure according to claim 1, it is characterized in that, described displacement detector (3) comprises optoelectronic switch, and described optoelectronic switch is connected with described pressure cooker cover, and described optoelectronic switch is positioned on the moving direction of the movable part of described Floater Structure.
3. pressure detection structure according to claim 1, is characterized in that, described displacement detector (3) comprises Hall element and magnet;
Described magnet is located at one end of the movable part of described Floater Structure, and described Hall element is connected with described pressure cooker cover, and described Hall element is positioned on the moving direction of the movable part of described Floater Structure.
4. pressure detection structure according to claim 1, is characterized in that, described displacement detector (3) comprises tongue tube and magnet;
Described magnet is located at one end of the movable part of described Floater Structure, and described tongue tube is connected with described pressure cooker cover, and described tongue tube is positioned on the moving direction of the movable part of described Floater Structure.
5. pressure detection structure according to claim 1, is characterized in that,
Described displacement detector (3) comprises microswitch; Described microswitch is connected with described pressure cooker cover, or described microswitch is connected with the fixed part of described Floater Structure; Or,
Described displacement detector (3) comprises touch-switch; Described touch-switch is connected with described pressure cooker cover, or described touch-switch is connected with the fixed part of described Floater Structure.
6. according to the arbitrary described pressure detection structure of claim 1-5, it is characterized in that, the fixed part of described Floater Structure has cavity (11), air admission hole (12) and steam vent (13), and described air admission hole (12) is all communicated with described cavity (11) with described steam vent (13);
The movable part of described Floater Structure is arranged in described cavity (11) at least partly and described air admission hole (12) is not communicated with described steam vent (13);
Wherein, described movable part can move to the position that described air admission hole (12) is communicated with steam vent (13) under the gas pressure entered via described air admission hole (12).
7. pressure detection structure according to claim 6, is characterized in that, described fixed part comprises supporting seat (1), and described movable part comprises fly rod (2);
Described supporting seat (1) is provided with described cavity (11), described air admission hole (12) and described steam vent (13); Described fly rod (2) has first end (21) and the second end (22), described first end (21) is towards described air admission hole (12), and airtight between described first end (21) and described cavity (11) inwall.
8. pressure detection structure according to claim 7, is characterized in that, also comprises reposition element (4);
Described reposition element (4) is connected with described fly rod (2), and described reposition element (4) is provided for the described fly rod (2) after by described gas push and resets.
9. pressure detection structure according to claim 7, is characterized in that, described supporting seat (1) comprises float valve gap (15) and float valve seat (16); Described float valve gap (15) be located in described float valve seat (16) outside, and both are threaded;
Described float valve seat (16) one end is provided with described air admission hole (12), and described float valve seat (16) other end is uncovered, and the sidewall of described float valve seat (16) offers the first opening; The sidewall of described float valve gap (15) is provided with the second opening; Described first opening and described second open communication, using common as described steam vent (13).
10. pressure detection structure according to claim 9, it is characterized in that, described float valve seat (16) is provided with the convex edge (17) of evagination towards one end of described air admission hole (12), have the fixing clearance for sandwiched pressure cooker cover between described float valve gap (15) and described convex edge (17).
11., according to the arbitrary described pressure detection structure of claim 1-5, is characterized in that, also comprise moving-member (7);
Described moving-member (7) is movably arranged on described pressure cooker cover; Under original state, between described moving-member (7) and described pressure cooker cover, there is gap; When the liquid in electric pressure cooking saucepan is in fluidized state, described moving-member (7) can move to the position making described moving-member (7) and the sealing of described pressure cooker cover.
12. pressure detection structures according to claim 11, it is characterized in that, also comprise seal (8), described seal (8) is located at described moving-member (7) and is positioned at the side of described moving-member (7) towards described electric pressure cooking saucepan pot.
13. pressure detection structures according to claim 11, it is characterized in that, also comprise the position detector (9) for detecting described moving-member (7) position, described position detector (9) is arranged on described pressure cooker cover.
14. pressure detection structures according to claim 13, is characterized in that, described pressure cooker cover comprises the first lid and the second lid, and described first lid is provided with the first through hole (51), and described second lid is provided with the second through hole (61); Described first through hole (51) and described second through hole (61) communicate;
Described moving-member (7) is arranged in described first through hole (51), and described position detector (9) is arranged on described second through hole (61) top;
Wherein, when the liquid in electric pressure cooking saucepan is in fluidized state, described moving-member (7) can move to the position that one end is arranged in described second through hole (61).
15. 1 kinds of electric pressure cooking saucepans, is characterized in that, comprise the arbitrary described pressure detection structure of claim 1-14.
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| CN201510680128.1A CN105125069A (en) | 2015-10-19 | 2015-10-19 | Pressure detection structure and electric pressure cooker |
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| CN201510680128.1A CN105125069A (en) | 2015-10-19 | 2015-10-19 | Pressure detection structure and electric pressure cooker |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105902152A (en) * | 2016-06-23 | 2016-08-31 | 珠海格力电器股份有限公司 | Cooking utensil |
| CN106618172A (en) * | 2016-12-13 | 2017-05-10 | 美的集团股份有限公司 | Pressure sensor and cooking utensil with same |
| WO2018107522A1 (en) * | 2016-12-13 | 2018-06-21 | 美的集团股份有限公司 | Pressure detection device and cooking appliance having same |
| CN108523644A (en) * | 2018-04-28 | 2018-09-14 | 佛山市顺德区美的电热电器制造有限公司 | The test method and device of pressure cooking appliance |
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| CN105902152A (en) * | 2016-06-23 | 2016-08-31 | 珠海格力电器股份有限公司 | Cooking utensil |
| CN105902152B (en) * | 2016-06-23 | 2019-02-12 | 珠海格力电器股份有限公司 | Cooking apparatus |
| US11399651B2 (en) | 2016-12-13 | 2022-08-02 | Midea Group Co., Ltd. | Pressure detection device with improved control precision of pressure cooking appliance |
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| WO2018107522A1 (en) * | 2016-12-13 | 2018-06-21 | 美的集团股份有限公司 | Pressure detection device and cooking appliance having same |
| CN106618172B (en) * | 2016-12-13 | 2018-12-21 | 美的集团股份有限公司 | Pressure sensor and cooking apparatus with it |
| CN109008603A (en) * | 2017-06-08 | 2018-12-18 | 佛山市顺德区美的电热电器制造有限公司 | Zero-pressure float assembly, pot cover and electric pressure cooking saucepan |
| CN109008603B (en) * | 2017-06-08 | 2023-09-08 | 佛山市顺德区美的电热电器制造有限公司 | Zero-pressure float assembly, pot cover and electric pressure cooker |
| CN108523644A (en) * | 2018-04-28 | 2018-09-14 | 佛山市顺德区美的电热电器制造有限公司 | The test method and device of pressure cooking appliance |
| CN108523644B (en) * | 2018-04-28 | 2020-09-15 | 佛山市顺德区美的电热电器制造有限公司 | Method and device for testing pressure cooking appliance |
| CN109892976A (en) * | 2019-04-11 | 2019-06-18 | 广东海洋大学 | A kind of domestic intelligent overflow-prevention electric rice cooker |
| CN109892976B (en) * | 2019-04-11 | 2024-05-03 | 广东海洋大学 | Household intelligent anti-overflow electric cooker |
| CN110432787B (en) * | 2019-08-12 | 2021-02-19 | 珠海格力电器股份有限公司 | Lid and have its cooking utensil |
| CN110432787A (en) * | 2019-08-12 | 2019-11-12 | 珠海格力电器股份有限公司 | Lid and cooking apparatus with it |
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