CN104127124A - Magnetic valve, pressure adjusting device, cooking utensil, upper cover of cooking utensil, and pressure adjusting method - Google Patents
Magnetic valve, pressure adjusting device, cooking utensil, upper cover of cooking utensil, and pressure adjusting method Download PDFInfo
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- CN104127124A CN104127124A CN201410378231.6A CN201410378231A CN104127124A CN 104127124 A CN104127124 A CN 104127124A CN 201410378231 A CN201410378231 A CN 201410378231A CN 104127124 A CN104127124 A CN 104127124A
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- 238000010411 cooking Methods 0.000 title claims abstract description 128
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000000696 magnetic material Substances 0.000 claims abstract description 18
- 238000004804 winding Methods 0.000 claims description 24
- 230000008859 change Effects 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 claims description 22
- 230000005611 electricity Effects 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 10
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
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Abstract
The invention provides a magnetic valve, a pressure adjusting device, a cooking utensil, an upper cover of the cooking utensil, and a pressure adjusting method. The pressure adjusting device comprises a valve element with a steam passageway, a switching valve and a coil, wherein a valve body of the switching valve is provided with an attraction piece or a permanent magnet made of soft magnetic material, and the switching valve is located in the magnetic field generated when the coil is powered on; by changing the size and direction of current, the magnetic field force on the switching valve is changed, then pressure in the cooking utensil is changed when the steam passageway is opened through the switching valve, and therefore the limited pressure in the cooling utensil is changed; by controlling the size and direction of power-on current in the coil, the limited pressure in the cooking utensil is controlled, and therefore the limited pressure in the cooking utensil is controllable, and the problem that in the prior art, liquid in a pot is easily sprayed out when the pressure inside the pot changes excessively is solved.
Description
Technical field
The present invention relates to kitchen utensils field, more specifically, relate to a kind of magnetic valve, pressure-regulating device, comprise the cooking apparatus of this pressure-regulating device upper cover, comprise the cooking apparatus of this upper cover and the pressure regulating method of this cooking apparatus.
Background technology
At present, in order to make electric pressure cooking saucepan reach the effect of boiling in cooking process, adopt kinds of schemes, as intermittently promoted exhaust steam valve exhaust with magnetic valve in cooking process, make boiling in pot, but the pressure limiting pressure of the uncontrollable electric pressure cooking saucepan of this scheme, causes the problems such as pot inner pressure changes greatly, the easy ejection of the interior liquid of pot to occur.
Summary of the invention
The present invention is intended at least solve one of technical problem existing in prior art.
For this reason, the object of first aspect of the present invention is, a kind of magnetic valve for cooking apparatus is provided, by making magnetic valve stressed in the magnetic field of coil electricity generation, to regulate the pressure in cooking apparatus.
The object of second aspect of the present invention is, a kind of pressure-regulating device of adjustable cooking apparatus internal pressure is provided.
The object of third aspect of the present invention is, the pressure-regulating device of another kind of adjustable cooking apparatus internal pressure is provided.
The object of the 4th aspect of the present invention is, a kind of upper cover of the cooking apparatus that comprises above-mentioned pressure-regulating device is provided.
The object of the 5th aspect of the present invention is, a kind of cooking apparatus that comprises above-mentioned upper cover is provided.
The object of the 6th aspect of the present invention is, a kind of control method of above-mentioned pressure is provided, to regulate the pressure in above-mentioned cooking apparatus.
For achieving the above object, the embodiment of first aspect of the present invention provides a kind of magnetic valve, for cooking apparatus, described magnetic valve comprises valve body, on described valve body, arrange and be fixed with a permanent magnet, or, on described valve body, arranges and be fixed with multiple permanent magnets, and the layout of the pole orientation of multiple described permanent magnets is all identical.
On the valve body of magnetic valve, be provided with a permanent magnet or multiple permanent magnet, and the layout of the pole orientation of multiple permanent magnets is all identical, the magnetic direction of multiple permanent magnets that is magnetic valve is identical, like this in the time that magnetic valve is positioned at magnetic field, the direction that its multiple permanent magnets are subject to magnetic field force is identical, can be by changing power and the direction in magnetic field, change the magnetic field force that magnetic valve is subject to, and then change magnetic valve pressure in cooking apparatus when the steam channel of cooking apparatus is opened, to realize the object that regulates cooking apparatus pressure.
In one embodiment of the invention, multiple described permanent magnets are vertically arranged, and the magnetic pole of the top and bottom of multiple permanent magnets is all identical.
The embodiment of second aspect of the present invention provides a kind of pressure-regulating device, for cooking apparatus, comprising: spool, offers steam channel on described spool; Switch valve, described switch valve is the magnetic valve described in above-mentioned arbitrary embodiment, described switch valve can cut out described steam channel; And coil, in the magnetic field that described switch valve produces in described coil electricity, and be subject to the effect of magnetic field force, when regulating described switch valve that described steam channel is opened described in pressure in cooking apparatus.
The pressure-regulating device that the above embodiment of the present invention provides, comprise spool, switch valve and coil, switch valve is the magnetic valve that comprises permanent magnet, hot-wire coil energising can produce magnetic field, switch valve is positioned at magnetic field, and permanent magnet can be subject to attraction or the repulsive force in magnetic field in magnetic field, because switch valve is subject to the effect of magnetic field force, pressure when switch valve is opened the steam channel on spool in cooking apparatus changes, to reach the object that regulates cooking apparatus pressure.
The embodiment of third aspect of the present invention provides a kind of pressure-regulating device, for cooking apparatus, comprising: spool, offers steam channel on described spool; Switch valve, described switch valve can cut out described steam channel, and described switch valve comprises valve body and is arranged on the suction part that the soft magnetic material on described valve body is made; And coil, in the magnetic field that described switch valve produces in described coil electricity, and described suction part is subject to the attraction in magnetic field, when regulating described switch valve that described steam channel is opened described in pressure in cooking apparatus.
The pressure-regulating device that the above embodiment of the present invention provides, comprise spool, switch valve and coil, the valve body of switch valve is provided with the suction part that soft magnetic material is made, hot-wire coil energising can produce magnetic field, switch valve is positioned at magnetic field, because suction part is that soft magnetic material is made, therefore, suction part is subject to the attraction in magnetic field in magnetic field, because switch valve is subject to the attraction of magnetic field force, pressure when switch valve is opened the steam channel on spool in cooking apparatus changes, to reach the object that regulates cooking apparatus pressure.
In addition, the pressure-regulating device that the above embodiment of the present invention provides also has following additional technical feature:
According to one embodiment of present invention, described coil is double winding coil, and the opposite direction of electrical current in two coils.
Coil is double winding coil, and the opposite direction of electrical current in two coils, in the time that switch valve is magnetic valve, a wherein coil electricity, switch valve is subject to the attraction in magnetic field, be adjusted into another coil electricity, it produces changing of magnetic field, the magnetic field force that switch valve is subject to becomes repulsive force, therefore, can switch on respectively and power-off by two coils of controlling in double winding coil, the magnetic field force that controllable switch valve is subject to, pressure when switch valve is opened steam channel in cooking apparatus changes, to reach the object that regulates cooking apparatus pressure.
According to one embodiment of present invention, described coil is simplex winding coil.
Coil is simplex winding coil, now switch valve can be magnetic valve, or the valve body of switch valve is provided with suction part, be subject to the attraction in magnetic field, can change equally the stressed of switch valve, pressure when switch valve is opened steam channel in cooking apparatus changes, to reach the object that regulates cooking apparatus pressure.
According to one embodiment of present invention, in described coil, be provided with iron core, described coil winding is on described iron core.
The setting of iron core, can intensifier coil the intensity in the magnetic field that produces of energising, the magnetic field force that switch valve is subject to is increased.
According to one embodiment of present invention, described switch valve is positioned at the top of described spool, and described coil is set in outside the bottom of described spool.
Switch valve is positioned at the top of spool, and in the time that switch valve is subject to the attraction in magnetic field, the upwards thrust that switch valve is subject to steam need overcome attraction and the gravity that switch valve is subject to simultaneously, moves and steam channel could be opened on switch valve; In the time of the repulsive force in the magnetic field that switch valve is subject to, the upwards thrust of the steam that switch valve is subject to and repulsive force acting in conjunction overcome the gravity of switch valve, move and steam channel could be opened on switch valve.
The embodiment of the 4th aspect of the present invention provides a kind of upper cover of cooking apparatus, comprising: upper cover body, offers installing hole on described upper cover body; With the pressure-regulating device exhaust steam valve described in above-mentioned arbitrary embodiment, described pressure-regulating device is arranged in described installing hole, and the steam producing in described cooking apparatus can enter in the steam channel on the spool of described pressure-regulating device.
The upper cover of the cooking apparatus that the above embodiment of the present invention provides, comprise the pressure-regulating device described in above-mentioned arbitrary embodiment, the steam producing in cooking apparatus can enter steam channel, and impose on switch valve one thrust upwards, and switch valve can also be subject to the effect of the magnetic field force of coil generation, switch valve, under the acting in conjunction of magnetic field force, steam thrust and gravity, opens or closes steam channel.
The upper cover of the cooking apparatus that in addition, the above embodiment of the present invention provides also has following additional technical feature:
According to one embodiment of present invention, the upper cover of described cooking apparatus also comprises electric control gear, described electric control gear is electrically connected with the coil of described pressure-regulating device, and can control size, the direction of the power on/off of described coil and/or the electrical current of described coil, and then the size and Orientation of the magnetic field force that is subject to of by-pass cock valve, to reach the object that regulates cooking apparatus internal pressure.
According to one embodiment of present invention, described electric control gear comprises: relay, and described relay can be controlled the power on/off of described coil, whether produces magnetic field with control coil, and then gauge tap valve is subject to magnetic field force or is not subject to magnetic field force; And/or, triode, described triode can be controlled the direction of the electrical current of described coil, is subject to repulsive force or attraction with gauge tap valve.
According to one embodiment of present invention, be provided with a valve seat in described installing hole, the lower end abutment of described coil is on described valve seat, and the lower end of described spool is successively through described coil and described valve seat.
The setting of valve seat, the just installation of coil and spool and fixing; Valve seat is arranged in installing hole, and the lower end of spool is through valve seat, so that the internal communication of the steam channel of spool and cooking apparatus, steam can enter in steam channel.
According to one embodiment of present invention, between described valve seat and described coil, be provided with seal.
Between valve seat and coil, be provided with seal, seal, by the clearance seal between valve seat and coil, pollutes coil can prevent on the one hand the liquid ejection in pot time, can prevent that on the other hand under the vapor action in pot, coil makes moist, occurs leaky.
According to one embodiment of present invention, described coil is arranged with coil jackets outward, and described coil jackets is connected with described valve seat.Coil jackets can play the effect of protection coil.
The embodiment of the 5th aspect of the present invention provides a kind of cooking apparatus, includes the upper cover of the cooking apparatus described in above-mentioned arbitrary embodiment, and has whole beneficial effects of the upper cover of cooking apparatus described in above-described embodiment.
According to one embodiment of present invention, described cooking apparatus is electric pressure cooking saucepan.
The embodiment of the 6th aspect of the present invention provides a kind of pressure regulating method, for regulating the pressure in cooking apparatus, the upper cover body of described cooking apparatus is provided with pressure-regulating device, described pressure-regulating device comprises coil and switch valve, the valve body of described switch valve is provided with the suction part that permanent magnet or soft magnetic material are made, described control method comprises the following steps: described coil electricity also produces magnetic field, described switch valve is subject to the active force in magnetic field, when changing described switch valve described steam channel being opened described in the pressure of steam in cooking apparatus.
In addition, the pressure regulating method that the above embodiment of the present invention provides also has following additional technical feature:
According to one embodiment of present invention, described valve body is provided with the suction part that soft magnetic material is made, and can change the size of electric current in described coil, and the size of the attraction in the magnetic field that described switch valve is subject to is changed.
According to one embodiment of present invention, described valve body is provided with permanent magnet, can change size and/or the direction of electric current in described coil, and size and/or the direction of the active force in the magnetic field that described switch valve is subject to are changed.
According to one embodiment of present invention, described coil is simplex winding coil, can change size and/or the direction of electric current in described simplex winding coil, and size and/or the direction of the active force in the magnetic field that described switch valve is subject to are changed; Or described coil is double winding coil, and the opposite direction of electrical current in two coils, can control described in two the size of coil electricity and electrical current described in one in coil, control direction and/or the size of the active force in the magnetic field that described switch valve is subject to.
Additional aspect of the present invention and advantage will become in description part below obviously, or recognize by practice of the present invention.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is the sectional structure schematic diagram according to the pressure-regulating device described in first embodiment of the invention;
Fig. 2 is the sectional structure schematic diagram according to the pressure-regulating device described in second embodiment of the invention;
Fig. 3 is the sectional structure schematic diagram according to the pressure-regulating device described in third embodiment of the invention;
Fig. 4 is the sectional structure schematic diagram according to the upper cover of the cooking apparatus described in one embodiment of the invention;
Fig. 5 is the A portion structure enlarged diagram of Fig. 4;
Fig. 6 is the decomposition texture schematic diagram of Fig. 4.
Wherein, in Fig. 1 to Fig. 6, the corresponding relation between Reference numeral and component names is:
1 upper cover, 10 upper cover bodies, 100 pot cover components, 101 inner caps, 102 covers, 11 pressure-regulating devices, 110 spools, 1100 steam channels, 111 switch valves, 1110 permanent magnets, 1111 suction parts, 1112 addendum cones, 1113 steam drains, 112 coils, 113 iron cores, 12 valve seats, 13 coil jackets, 14 seals
Detailed description of the invention
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, in the situation that not conflicting, the feature in the application's embodiment and embodiment can combine mutually.
A lot of details are set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from mode described here and implement, and therefore, protection scope of the present invention is not subject to the restriction of following public specific embodiment.
Pressure regulating method in upper cover, cooking apparatus and this cooking apparatus of the magnetic valve, the pressure-regulating device that provide according to some embodiments of the invention, cooking apparatus is described with reference to the accompanying drawings.
The embodiment of first aspect of the present invention provides a kind of magnetic valve (not shown), for cooking apparatus, described magnetic valve comprises valve body, on described valve body, arrange and be fixed with a permanent magnet of vertically placing, or, the permanent magnet that is fixed with multiple vertical placements is set on described valve body, and the magnetic pole of the top and bottom of multiple described permanent magnets is all identical.
On the valve body of magnetic valve, be provided with a permanent magnet of vertically placing or the permanent magnet of multiple vertical placements, and the magnetic pole of the top and bottom of multiple permanent magnets is all identical, the magnetic pole of top and bottom that is magnetic valve is identical, like this in the time that magnetic valve is positioned at magnetic field, its direction that is subject to magnetic field force is identical, can be by changing power and the direction in magnetic field, change the magnetic field force that magnetic valve is subject to, and then change magnetic valve pressure in cooking apparatus when the steam channel of cooking apparatus is opened, to realize the object that regulates cooking apparatus pressure.
The embodiment of second aspect of the present invention provides a kind of pressure-regulating device 11, as shown in Figures 2 and 3, for cooking apparatus, comprising: spool 110, switch valve 111 and coil 112.
Wherein, on described spool 110, offer steam channel 1100;
Described switch valve 111 is the magnetic valve described in above-mentioned arbitrary embodiment, and described switch valve 111 can cut out described steam channel 1100;
In the magnetic field that described switch valve 111 produces in 112 energisings of described coil, and be subject to the effect of magnetic field force, when regulating described switch valve 111 that described steam channel 1100 is opened described in pressure in cooking apparatus.
The pressure-regulating device that the above embodiment of the present invention provides, comprise spool 110, switch valve 111 and coil 112, switch valve 111 is the magnetic valve that comprises permanent magnet 1110, hot-wire coil 112 energisings can produce magnetic field, switch valve 111 is positioned at magnetic field, permanent magnet 1110 can be subject to attraction or the repulsive force in magnetic field in magnetic field, because switch valve 111 is subject to the effect of magnetic field force, pressure when switch valve 111 is opened the steam channel on spool 110 1100 in cooking apparatus changes, to reach the object that regulates cooking apparatus pressure, make the pressure limiting pressure in pressure cooker controlled, solve pot inner pressure of the prior art and changed the problems such as the easy ejection of the interior liquid of the excessive pot causing.
The embodiment of third aspect of the present invention provides a kind of pressure-regulating device 11, as shown in Figure 1, for cooking apparatus, comprising: spool 110, switch valve 111 and coil 112.
Wherein, on described spool 110, offer steam channel 1100;
Described switch valve 111 can cut out described steam channel 1100, and described switch valve 111 comprises valve body and is arranged on the suction part 1111 that the soft magnetic material on described valve body is made;
In the magnetic field that described switch valve 111 produces in 112 energisings of described coil, and described suction part 1111 is subject to the attraction in magnetic field, when regulating described switch valve 111 that described steam channel 1100 is opened described in pressure in cooking apparatus.
The pressure-regulating device 11 that the above embodiment of the present invention provides, comprise spool 110, switch valve 111 and coil 112, the valve body of switch valve 111 is provided with the suction part 1111 that soft magnetic material is made, hot-wire coil 112 energisings can produce magnetic field, switch valve 111 is positioned at magnetic field, because suction part 1111 is made for soft magnetic material, therefore, suction part 1111 is subject to the attraction in magnetic field in magnetic field, because switch valve 111 is subject to the attraction of magnetic field force, pressure when switch valve 111 is opened the steam channel on spool 110 1100 in cooking apparatus changes, to reach the object that regulates cooking apparatus pressure, make the pressure limiting pressure in pressure cooker controlled, solve pot inner pressure of the prior art and changed the problems such as the easy ejection of the interior liquid of the excessive pot causing.
Particularly, described soft magnetic material is iron, cobalt, nickel etc.
In addition, the pressure-regulating device that the embodiment of second aspect present invention and the third aspect provides also has following additional technical feature:
In one embodiment of the invention, as shown in Figure 3, described coil 112 is double winding coil, and the opposite direction of electrical current in two coils.
In the example depicted in fig. 3, double winding coil comprises three power lines, power line wherein connects the negative pole of power supply, two power lines of both sides connect the positive pole of power supply, the opposite direction in the magnetic field producing when the direction in magnetic field producing when two power lines of upside are connected with power supply and two power lines of downside are connected with power supply, the magnetic field force that switch valve 111 is subject to can be changed between attraction and repulsive force, therefore, can switch on respectively and power-off by two coils 112 of controlling in double winding coil, the direction of the magnetic field force that gauge tap valve 111 is subject to, pressure when switch valve 111 is opened steam channel 1100 in cooking apparatus changes, to reach the object that regulates cooking apparatus pressure.
Certainly, when coil is double winding coil, the suction part of being made up of soft magnetic material also can be set on valve body, now upside or two power lines of downside are communicated with power supply no matter, the magnetic field force that switch valve is subject to is attraction.
In another embodiment of the present invention, as depicted in figs. 1 and 2, described coil 112 is simplex winding coil 112.
Coil 112 is simplex winding coil 112, now switch valve 111 can be magnetic valve (as shown in Figure 2), or the valve body of switch valve 111 is provided with suction part 1111 (as shown in Figure 1), be subject to the attraction in magnetic field, can change equally the stressed of switch valve 111, pressure when switch valve 111 is opened steam channel 1100 in cooking apparatus changes, to reach the object that regulates cooking apparatus pressure.
In a preferred embodiment of the invention, as shown in Figure 1 to Figure 3, in described coil 112, be provided with iron core 113, described coil 112 is wrapped on described iron core 113.
The setting of iron core 113, can intensifier coil the intensity in the magnetic field that produces of 112 energisings, the magnetic field force that switch valve 111 is subject to is increased.
In the embodiment shown in Fig. 1 to Fig. 3, described switch valve 111 is positioned at the top of described spool 110, and described coil 112 is set in outside the bottom of described spool 110.
Switch valve 111 is positioned at the top of spool 110, and in the time that switch valve 111 is subject to the attraction in magnetic field, the upwards thrust that switch valve 111 is subject to steam need overcome attraction and the gravity that switch valve 111 is subject to simultaneously, moves and steam channel 1100 could be opened on switch valve 111; In the time of the repulsive force in the magnetic field that switch valve 111 is subject to, the upwards thrust of the steam that switch valve 111 is subject to and repulsive force acting in conjunction overcome the gravity of switch valve 111, move and steam channel 1100 could be opened on switch valve 111.
The embodiment of the 4th aspect of the present invention provides a kind of upper cover 1 of cooking apparatus, as shown in Figures 4 to 6, comprising: pressure-regulating device 11 exhaust steam valves described in upper cover body 10 and above-mentioned arbitrary embodiment, offer installing hole on described upper cover body 10; Described pressure-regulating device 11 is arranged in described installing hole, and the steam producing in described cooking apparatus can enter in the steam channel 1100 on the spool 110 of described pressure-regulating device 11.
The upper cover 1 of the cooking apparatus that the above embodiment of the present invention provides, comprise the pressure-regulating device 11 described in above-mentioned arbitrary embodiment, the steam producing in cooking apparatus can enter steam channel 1100, and impose on switch valve 111 1 thrust upwards, and switch valve 111 can also be subject to the effect of the magnetic field force that coil 112 produces, switch valve 111, under the acting in conjunction of magnetic field force, steam thrust and gravity, opens or closes steam channel 1100.
The upper cover of the cooking apparatus that in addition, the above embodiment of the present invention provides also has following additional technical feature:
In one embodiment of the present of invention, the upper cover 1 of described cooking apparatus also comprises electric control gear (not shown), described electric control gear is arranged on described upper cover body 10, described electric control gear is electrically connected with the coil 112 of described pressure-regulating device, and can control size, the direction of the power on/off of described coil 112 and/or the electrical current of described coil 112, and then the size and Orientation of the magnetic field force that is subject to of by-pass cock valve 111, to reach the object that regulates cooking apparatus internal pressure.
Particularly, described electric control gear comprises relay, and described relay can be controlled the power on/off of described coil 112, whether produces magnetic field with control coil 112, and then gauge tap valve 111 is subject to magnetic field force or is not subject to magnetic field force.
Further, described electric control gear also comprises triode, and described triode can be controlled the direction of the electrical current of described coil 112, is subject to repulsive force or attraction with gauge tap valve 111.
In one embodiment of the invention, as shown in Figure 5, be provided with a valve seat 12 in described installing hole, the lower end abutment of described coil 112 is on described valve seat 12, and the lower end of described spool 110 is successively through described coil 112 and described valve seat 12.
The setting of valve seat 12, the just installation of coil 112 and spool 110 and fixing; Valve seat 12 is arranged in installing hole, and the lower end of spool 110 is through valve seat 12, so that the internal communication of the steam channel of spool 110 1100 and cooking apparatus, steam can enter in steam channel 1100.
Preferably, as shown in Figure 5, between described valve seat 12 and described coil 112, be provided with seal 14.
Between valve seat 12 and coil 112, be provided with seal 14, seal 14 is by the clearance seal between valve seat 12 and coil 112, can prevent on the one hand the liquid ejection in pot time, pollute coil 112, can prevent that on the other hand under the vapor action in pot, coil 112 makes moist, occurs leaky.
Further, as shown in Figure 5, described coil 112 is outer is arranged with coil jackets 13, and described coil jackets 13 is connected with described valve seat 12.Coil jackets 13 can play the effect of protection coil 112.
Below in conjunction with Fig. 4 to Fig. 6, illustrate structure and the operation principle thereof of the upper cover of the cooking apparatus that the embodiment of the present invention provides.
As shown in Figure 6, the upper cover body 10 of the upper cover 1 of cooking apparatus comprises the pot cover component 100, inner cap 101 and the cover 102 that set gradually from bottom to top, on pot cover component 100, inner cap 101 and cover 102, all offer through hole, the installing hole that has formed upper cover body 10, is fixed with valve seat 12 on pot cover component 100.
Pressure-regulating device 11 comprises spool 110, switch valve 111 and coil 112, on spool 110, offer steam channel 1100, the valve body of switch valve 111 is provided with permanent magnet 1110, and on valve body, offer steam drain 1113, on valve body, be also fixed with an addendum cone 1112, the lower end of addendum cone 1112 is stretched in steam channel 1100, and by the port closing of steam channel 1100, the lower end of spool 110 is successively through coil 112 and valve seat 12, the entrance of steam channel 1100 is communicated with, so that the steam in cooking apparatus enters in steam channel 1100 with installing hole.
In the time that coil 112 is switched on, produce magnetic field, permanent magnet 1110 on valve body is subject to the active force in magnetic field, simultaneously the addendum cone 1112 of valve body is also subject to thrust that steam applies and the gravity of valve body, under the acting in conjunction of three power, addendum cone 1112 can drive switch valve action, and the outlet of steam channel 1100 is opened or closed.
In the time that permanent magnet 1110 is subject to the downward attraction in magnetic field, when the thrust that imposes on addendum cone 1112 when the steam in cooking apparatus is greater than the pressure that addendum cone 1112 is subject to (being making a concerted effort of the gravity of switch valve self and permanent magnet 1110 attraction that is subject to magnetic field), steam is by addendum cone 1112 jack-up, switch valve 111 is moved up, the outlet of steam channel 1100 is opened, now steam channel 1100 is communicated with the steam drain 1130 on switch valve 113, steam in cooking apparatus can pass through steam channel 1100, and finally discharge from steam drain 1130, make to produce and seethe with excitement in cooking apparatus.
When magnetic direction changes, when permanent magnet 1110 is subject to the thrust upwards in magnetic field, when the steam in cooking apparatus imposes on the thrust of addendum cone 1112 and magnetic field force sum while being greater than the pressure (being the gravity of switch valve self) that addendum cone 1112 is subject to, addendum cone 1112 moves up, the outlet of steam channel 1100 is opened, now steam channel 1100 is communicated with the steam drain 1130 on switch valve 113, steam in cooking apparatus can pass through steam channel 1100, and finally discharge from steam drain 1130, make to produce and seethe with excitement in cooking apparatus.
The embodiment of the 5th aspect of the present invention provides a kind of cooking apparatus (not shown), includes the upper cover 1 of the cooking apparatus described in above-mentioned arbitrary embodiment, and has whole beneficial effects of the upper cover 1 of cooking apparatus described in above-described embodiment.
In a specific embodiment of the present invention, described cooking apparatus is electric pressure cooking saucepan.Certainly, cooking apparatus can also be other utensils, as: electric cookers etc., do not repeat one by one at this.
The embodiment of the 6th aspect of the present invention provides a kind of pressure regulating method, for regulating the pressure in cooking apparatus, the upper cover body 10 of described cooking apparatus is provided with pressure-regulating device 11, described pressure-regulating device 11 comprises coil 112 and switch valve 111, the valve body of described switch valve 111 is provided with the suction part 1111 that permanent magnet 1110 or soft magnetic material are made, described control method comprises the following steps: described coil 112 is switched on and produces magnetic field, described switch valve 111 is subject to the active force in magnetic field, the pressure of steam in cooking apparatus described in when changing described switch valve 111 described steam channel 1100 being opened.
In addition, the pressure regulating method that the above embodiment of the present invention provides also has following additional technical feature:
In some embodiments of the invention, described valve body is provided with the suction part 1111 that soft magnetic material is made, and can change the size of described coil 112 interior electric currents, and the size of the attraction in the magnetic field that described switch valve 111 is subject to is changed.
In other embodiment of the present invention, described valve body is provided with permanent magnet 1110, can change size and/or the direction of described coil 112 interior electric currents, and size and/or the direction of the active force in the magnetic field that described switch valve 111 is subject to are changed.
In a concrete example, described coil 112 is simplex winding coil 112, can change size and/or the direction of described simplex winding coil 112 interior electric currents, and size and/or the direction of the active force in the magnetic field that described switch valve 111 is subject to are changed.
In another concrete example, described coil 112 is double winding coil, and the opposite direction of electrical current in two coils 112, can control described in two the size of coil 112 energisings and electrical current described in one in coil 112, control direction and/or the size of the active force in the magnetic field that described switch valve 111 is subject to.
In the pressure regulating method that the above embodiment of the present invention provides, in the time that valve body is provided with the suction part that soft magnetic material makes, can be by changing the size of electric current in coil, the size of the magnetic field force that change switch valve is subject to, and then pressure limiting pressure in change cooking apparatus, and because electric current in coil can continuously change, realize the adjustable continuously of pressure limiting pressure; In the time that valve body is provided with permanent magnet, not only can be by changing the size of electric current in coil, control the pressure limiting pressure of cooking apparatus, can also be by changing sense of current in coil, change the direction in the magnetic field of coil generation, make switch valve be subject to magnetic field force and change between repulsive force and attraction, changed the stressed direction of switch valve, further expanded the adjustable range of pressure limiting pressure in cooking apparatus.
In sum, the pressure-regulating device of cooking apparatus provided by the invention, the valve body of its switch valve is provided with suction part or the permanent magnet that soft magnetic material is made, and switch valve is positioned at the magnetic field that coil electricity produces, by changing the size and Orientation of electric current, change the magnetic field force that switch valve is subject to, and then change switch valve pressure in cooking apparatus when steam channel is opened, changed the pressure limiting pressure in cooking apparatus, and can be by the size and Orientation of electrical current in control coil, control the pressure limiting pressure in cooking apparatus, make the pressure limiting pressure in cooking apparatus controlled, solve pot inner pressure of the prior art and changed the problems such as the easy ejection of the interior liquid of the excessive pot causing.
In the description of this description, the description of term " embodiment ", " some embodiment ", " specific embodiment " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (19)
1. a magnetic valve, for cooking apparatus, is characterized in that, comprises valve body, is provided with a permanent magnet on described valve body, or, on described valve body, be provided with multiple permanent magnets, and the layout of the pole orientation of multiple described permanent magnets is all identical.
2. a pressure-regulating device, for cooking apparatus, is characterized in that, comprising:
Spool, offers steam channel on described spool;
Switch valve, described switch valve is magnetic valve claimed in claim 1, described switch valve can cut out described steam channel; With
Coil, in the magnetic field that described switch valve produces in described coil electricity, and is subject to the effect of magnetic field force, when regulating described switch valve that described steam channel is opened described in pressure in cooking apparatus.
3. a pressure-regulating device, for cooking apparatus, is characterized in that, comprising:
Spool, offers steam channel on described spool;
Switch valve, described switch valve can cut out described steam channel, and described switch valve comprises valve body and is arranged on the suction part that the soft magnetic material on described valve body is made; With
Coil, in the magnetic field that described switch valve produces in described coil electricity, and described suction part is subject to the attraction in magnetic field, when regulating described switch valve that described steam channel is opened described in pressure in cooking apparatus.
4. according to the pressure-regulating device described in claim 2 or 3, it is characterized in that,
Described coil is double winding coil, and the opposite direction of electrical current in two coils.
5. according to the pressure-regulating device described in claim 2 or 3, it is characterized in that,
Described coil is simplex winding coil.
6. according to the pressure-regulating device described in claim 2 or 3, it is characterized in that,
In described coil, be provided with iron core, described coil winding is on described iron core.
7. according to the pressure-regulating device described in claim 2 or 3, it is characterized in that,
Described switch valve is positioned at the top of described spool, and described coil is set in outside the bottom of described spool.
8. a upper cover for cooking apparatus, is characterized in that, comprising:
Upper cover body, offers installing hole on described upper cover body; With
Pressure-regulating device as described in any one in claim 2 to 7, described pressure-regulating device is arranged in described installing hole, and the steam producing in described cooking apparatus can enter in the steam channel on the spool of described pressure-regulating device.
9. the upper cover of cooking apparatus according to claim 8, is characterized in that, also comprises:
Electric control gear, described electric control gear is electrically connected with the coil of described pressure-regulating device, and can control size, the direction of the power on/off of described coil and/or the electrical current of described coil.
10. the upper cover of cooking apparatus according to claim 9, is characterized in that, described electric control gear comprises:
Relay, described relay can be controlled the power on/off of described coil; And/or
Triode, described triode can be controlled the direction of the electrical current of described coil.
The upper cover of the cooking apparatus in 11. according to Claim 8 to 10 described in any one, is characterized in that,
In described installing hole, be provided with a valve seat, the lower end abutment of described coil is on described valve seat, and the lower end of described spool is successively through described coil and described valve seat.
The upper cover of 12. cooking apparatus according to claim 11, is characterized in that,
Between described valve seat and described coil, be provided with seal.
The upper cover of 13. cooking apparatus according to claim 12, is characterized in that,
Described coil is arranged with coil jackets outward, and described coil jackets is connected with described valve seat.
14. 1 kinds of cooking apparatus, is characterized in that, include the upper cover of the cooking apparatus described in any one in claim 8 to 13.
15. cooking apparatus according to claim 14, is characterized in that,
Described cooking apparatus is electric pressure cooking saucepan.
16. 1 kinds of pressure regulating methods, it is characterized in that, for regulating the pressure in cooking apparatus, the upper cover body of described cooking apparatus is provided with pressure-regulating device, described pressure-regulating device comprises spool, coil and switch valve, on described spool, offer steam channel, the valve body of described switch valve is provided with the suction part that permanent magnet or soft magnetic material are made, and described pressure regulating method comprises:
Described coil electricity produces magnetic field, and described switch valve is subject to the active force in magnetic field, when changing described switch valve described steam channel being opened described in the pressure of steam in cooking apparatus.
17. pressure regulating methods according to claim 16, is characterized in that,
Described valve body is provided with the suction part that soft magnetic material is made, and can change the size of electric current in described coil, and the size of the attraction in the magnetic field that described switch valve is subject to is changed.
18. pressure regulating methods according to claim 16, is characterized in that,
Described valve body is provided with permanent magnet, can change size and/or the direction of electric current in described coil, and size and/or the direction of the active force in the magnetic field that described switch valve is subject to are changed.
19. pressure regulating methods according to claim 18, is characterized in that,
Described coil is simplex winding coil, can change size and/or the direction of electric current in described simplex winding coil, and size and/or the direction of the active force in the magnetic field that described switch valve is subject to are changed; Or
Described coil is double winding coil, and the opposite direction of electrical current in two coils, can control described in two the size of coil electricity and electrical current described in one in coil, controls direction and/or the size of the active force in the magnetic field that described switch valve is subject to.
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