CN2838487Y - Electromagnetic heating pressure cooking device - Google Patents
Electromagnetic heating pressure cooking device Download PDFInfo
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- CN2838487Y CN2838487Y CN 200520113848 CN200520113848U CN2838487Y CN 2838487 Y CN2838487 Y CN 2838487Y CN 200520113848 CN200520113848 CN 200520113848 CN 200520113848 U CN200520113848 U CN 200520113848U CN 2838487 Y CN2838487 Y CN 2838487Y
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Abstract
The utility model discloses an electromagnetic heating pressure cooking apparatus which belongs to a kitchen electrothermal pressure cooking utensil. The utility model is an applied product of electromagnetic heating technique. The utility model comprises a cooker cover, a sealing ring, an inner cooker, an outer cooker, an elastic element, a switch and an electromagnetic heater which is arranged below the bottom of the inner cooker, wherein the electromagnetic heater and the switch are connected in series with a power supply. The utility model mainly solves the problem of the prior art that pressure overshoot is caused by the too high heat inertia of a heating device. Simultaneously, the utility model solves the problems of complicated structure and great production technology difficulty which exist in the prior art. The utility model has the advantages of simple structure, practicality, energy saving, etc.
Description
Technical field:
The invention belongs to hot electric pressing pressure cooking apparatus for kitchen use, relate to a kind of electromagnetic heating technique application product.
Background technology:
In China, adopt the electric pressure-cooker product of pressure controling mode control pot inner pressure to come into the market.The kind of electric pressure cooking saucepan product has been enriched in the application of ZL97100738.1 Chinese patent especially.But the heater element of this patent, what still adopt is the aluminium electric hot tray that electric cooker is used.The thermal inertia of aluminium electric hot tray can cause the pressure overshoot phenomenon occurring after the outage, has a strong impact on the accuracy of pot inner pressure control, also has certain harmfulness on product safety.Because the contact heat-conducting mode of aluminium electric hot tray institute extremely, also makes to there is the energy consumption height and the low problem of the thermal efficiency.In addition, this patent a diaphragm type pot cover (elastic cover) and a pot tooth elasticity ways of connecting, its purpose one is with the displacement addition of elastic cover and elasticity pot tooth, obtains enough displacements, realizes better pressure control effect, the 2nd, can save material.Though realized the purpose that saves material in force,, caused the pressure control effect of pressure release to can not get tangible improvement because the size of pot cover and the two elastic displacement of pot tooth is difficult to the unanimity that matches each other in force.This patent adopts and between the timing axle of two-dimentional input type control device and timer Mechanically programm is set, and the pressure cooking program of setting is carried out auto-control mode, and on the one hand because of its complex structure, probability of failure height and producting process difficulty are big in force.On the other hand, this compress control method belongs to unidirectional pressurization control, and its pressure control program is controlled weak effect when quantity of food is big in pot.In addition, this patent utilization temperature-sensitive dish valve bleeds off the technology of initial temperature in pot interior part air and the control pot, exist the initial temperature problem of unstable, and also there is contradiction with the desired high temperature of pressure cooking, not only be difficult to realize its goal of the invention in force, also increased the probability of failure of product simultaneously.
Summary of the invention:
The present invention is directed to the high pressure overshoot problem that causes of the thermal inertia owing to heater element that prior art exists, a kind of electromagnetic heating pressure cooking device is proposed, comprising pot cover, interior pot, sealing ring, outer pot, flexible member, switch, sealing ring is arranged between pot cover and the interior pot, the pot edge of interior pot is sitting on the pot edge of outer pot, flexible member is arranged on the outside of outer pot, and this device also comprises an electromagnetic heater, and pot connected into power supply down and with switch series in it was arranged on.
For solving the pressure cooking control program complex structure of prior art, the problem that producting process difficulty is big, the present invention proposes, and an end (shift end) of flexible member is movable with pot cover and is rigidly connected, the other end (stationary end) is fixedlyed connected with outer pot, the direct driving switch break-make of its elastic displacement.Need explanation, flexible member refers to possess the structure of elastic characteristic, and its function is the break-make with the elastic displacement that produces under the pot inner pressure effect (deformation) driving switch.An end that produces elastic displacement is called shift end, and is fixed on other structure, and an end that does not produce displacement is called stationary end.
Be the solution safety problem of uncapping, the present invention proposes, and the friction disk type knob structure of uncapping is set on pot cover.The feature of this structure is: the knob of uncapping forms friction by friction plate structure and pot cover and is connected, the safety that the frictional force of design friction structure the is lower than national Specification force value of uncapping, when pot inner pressure acts on power on the pot cover, during greater than the frictional force of friction structure, the turn knob of uncapping firmly, friction plate will skid and not open pot cover.Only drop at pot inner pressure and be equal to or less than when uncapping safe pressure, the turn knob of uncapping, friction plate structure just can drive pot cover and screw and uncap.This version is not only simple in structure, and safe and reliable, because it is zero no better than to the probability that the moment of friction augment direction damages.
The present invention proposes, and sealing ring adopts the internal pot of heat expansion sealing means to seal, and not only can reduce to close the frictional force of sealing ring when covering, and can also save temperature-sensitive dish valve of the prior art.The feature of sealing mode is: utilize the characteristics of sealing ring expanded by heating, design its sealed diameter according to sealing ring with the coefficient of expansion of material, make it leave certain clearance when cold conditions and between the interior pot wall.Air can before kettle temperature reaches the boiling point of water, but seal in the gap that the filling of sealing ring expanded by heating the is stayed realization pot outside gap location discharge pot before sealed diameter at the sealing ring expanded by heating in the pot.This sealing means not only can fully bleed off a pot interior air, realizes the venting function of temperature-sensitive dish valve, can make kettle temperature reach the desired high temperature of pressure cooking again, can also reduce probability of failure behind the designs simplification of product and save production cost.
The present invention proposes, can set the electrical parameter in the electromagnetism circuit, the degression type that its power output is is from high to low exported, power when resetting energising once more with gauge tap, realize the culinary art of pot inner pressure and lapse of temperature formula, substitute existing patented technology with this and change control structure by the pressure that two-dimentional switching device, timer and Mechanically programm etc. form.
For energy savings, the present invention proposes, and adopts heat-insulation layer is set on pot cover, uses the version of bi-stable type switch, can make the control mode of pot inner pressure become disposable control formula.It is characterized in that: when pot inner pressure reaches controlling value for the first time, the displacement drive switch of flexible member by path transfer to open circuit after, switch is thoroughly cut off the power supply of electromagnetic heater based on the energising that no longer resets of its bistable behaviour, and pot inner pressure descends with natural heat dissipation.Heat-insulation layer on the pot cover can guarantee in the regular hour have enough waste heats and pressure that food is carried out the smoldering of pressure decline formula in the pot.This mode promptly can save energy and can reach big fire cooks the stewing fragrant culinary art effect of ripe, little fire.
Flexible member of the present invention can be made cantilevered elasticity pot tooth, cantilevered elasticity pot tooth is meant: on the vertical drum that adopts the good material of elasticity to make, extend the such pot tooth of several similar common revolving type pressure cookers to horizontal direction, form by the beam type structure of vertical direction to the horizontal direction transition.The physical dimension of this structure is determining the displacement parameter of flexible member, therefore as long as the physical dimension of selected good cantilever beam just can obtain required elastic displacement.This technical scheme a single displacement gauge tap with flexible member, and need not to consider the elastic problem of pot cover, and having solved elasticity pot tooth and two displacements of elastic cover of existing patented technology, consistent problem is difficult to match each other, make production technology simpler, more meet suitability for industrialized production.In addition, flexible member can also be made of jointly elasticity pot tooth and elastic ring, elastic ring forming wherein by straight barrel section and straight bucket bottom to horizontal direction transition arc elastic part, elasticity pot tooth is by straight barrel section and the pot tooth on straight bucket top and forming to horizontal direction transition arc elastic part of straight bucket bottom, being fixed together of the two to horizontal direction transition arc elastic part, elasticity pot facing is outside elastic ring, the two leave can upper and lower displacement the gap, the external diameter close-fitting of the internal diameter of elastic ring and outer pot is fixed.Advantage simple in structure, that radial dimension is little, technology is easy to manufacture that the flexible member of this form has.Need explanation, here the upper end of elasticity pot tooth is a shift end, and stationary end then is the straight barrel section and the fastening other end of outer pot of elastic ring.Flexible member can also have various ways, but basic function all is identical.
The purpose of two-dimentional switching device, timer and Mechanically programm is set in the existing patented technology, be for pot inner pressure being controlled in the degression type cooking process from the high pressure to low pressure, and the present invention has removed the said structure in the existing patented technology, break-make with the direct gauge tap of displacement of flexible member, this control mode is compared with the control mode of prior art, has advantage simple in structure, that cost is low, probability of failure is low.When adopting disposable control mode, on the culinary art effect, also can reach the fragrant purpose of the ripe little fire of big fire (high pressure) (low pressure).
The movable connection method of pot cover of the present invention and flexible member shift end (elasticity pot tooth) can be as the revolving type pressure cooker, will cover tooth and a pot tooth and all make flat tooth and screw and be connected.Also the lid tooth and the flexible member shift end (outer pot tooth) of pot cover all can be made the oblique tooth with identical little lift angle, make the two be the formula of screwing togather and screw connection.Owing to screw togather the formula syndeton and do not need to screw structure as the flat dentition formula of usual pressure pot, need between tooth and tooth, leave the tooth space, therefore the formula of screwing togather screws connection and can make pot tooth increase about one times with effective arc length that is connected of covering tooth.Like this, under identical condition, the bonding strength that screws togather formula can improve exponentially than flat dentition formula.Obviously, under same requirement of strength condition, screw togather formula and more can save structure material than flat dentition formula.After the unified design such as depth dimensions, sealing ring, the pressure displacement of flexible member and the lift angle size of thread with the gas pressure relief slot of interior pot oral area, the employing formula that screws togather connects and can also be implemented in pot cover and screw angle when not in place, can control the pressure release value effectively is no more than pot tooth and covers the scope that the tooth bonding strength is allowed, that can save so not only that existing pressure cooker must have closes the lid safety device that puts in place, also extremely low because of the probability of failure that screws togather the formula syndeton, can not put that easy damage causes quick-fried pot the device in place, and improve the pressure security performance of product greatly as closing lid.Above-mentioned connected mode is to use for reference the connected mode of revolving type pressure cooker, in addition can also adopt the combined closing and opening cover during booting mode as the combined electric cooker, be that pot cover parts and outer pot parts link together by mechanisms such as rotating shafts, pot cover is opened after relying on angle of rotating shaft rotation, the version that uncap back pot cover parts and pan body part still link together.
In view of the relativity that is rigidly connected and is connected with elasticity, of the present invention being rigidly connected connects relative with elasticity, it is qualitative description to the mechanical state of two objects connections, finger does not have utilizable between the two or does not need the strain utilized under normal stressed situation.The elasticity connection then is meant being connected under the normal stressed condition between two objects, and design has utilizable strain.The present invention is designed to pot cover not produce the rigid form of strain (perhaps strain can be ignored) under stress, it only passes to flexible member with power, the control of pot inner pressure only depends on the displacement of flexible member to realize, got rid of that the displacement of elastic cover and elasticity pot tooth mates difficulty mutually in the existing patented technology, the unfavorable factor of bringing to pressure controling precision.Though pot cover of the present invention is thicker than the diaphragm type pot cover outline of existing patented technology with material, can save the production technology of crimping aborning.
Outer pot of the present invention can adopt the barrel structure form identical with the outer pot of electric cooker, makes moulding with drawing process.In view of the stock utilization of stretching production technology generally about 60%, according to force structure feature of the present invention, outer pot also can not adopt stretch forming process, and is made into the tubular structure that a thin-walled does not have the end, can realize its power propagation function.The stock utilization of reel production technology generally can be about 90%, therefore outer pot is made tubular structure significantly economical with materials reduce production costs.Outer pot can also be made the force transmission rack structure, this structure should satisfy accept in the pot inner pressure that transmits of pot edge, also should satisfy and accept flexible member and come from the pot inner pressure that pot cover transmits.
Existing patented technology contacts for pot in guaranteeing has good heat transmission with electric heater, design does not have before the pressure in pot, leave the gap of above-below direction between interior pot edge and the outer pot edge, after sealing is boosted in the pot, pot inner pressure is by electric heater compressing outer pot deformation of bottom, make above-mentioned gap be reduced into zero, when interior pot edge tightly suppressed outer pot edge, pressure ability was delivered to the flexible member stationary end that is fixed on the outer pot bucket wall by outer pot edge.And the present invention is not because electromagnetic heater participates in the transmission of power, so need not leave the gap between interior pot edge and the outer pot edge, the pot edge was delivered to the flexible member stationary end by outer pot edge again in pot inner pressure can be directly delivered to from the interior the bottom of a pan, thereby had simplified the bang path of pot inner pressure.This simplification helps the global design of pot, makes that pressure control design is more simple and reliable.
Electromagnetic heater among the present invention is made up of panel, coil, electromagnetism circuit etc.Electromagnetic heater converts electric energy to magnetic energy in the course of the work, and the interior pot with magnetic conductivity is converted to heat energy again with magnetic energy.Therefore, convert heat energy to for making magnetic energy, interior pot should have magnetic conductivity with the electromagnetic coupled position of electromagnetic heater.The employed cast aluminium electric hot tray of prior art has following shortcoming: the one, its internally pot what add thermal recovery is the contact heat exchange pattern.This mode of heating is earlier with behind the electric hot tray heat temperature raising, by the inside pot conveying of the temperature difference that forms between the electric hot tray and interior the bottom of a pan heat energy.Because of between the two heat-conductive characteristic is directly proportional with the high power of temperature gap between the two, usually electric hot tray need be heated to more than 200 ℃, the temperature of pot reaches or maintains (about 100 ℃～120 ℃) on the required cooking temp in just making, remaining energy then consumes in the process of heating electric hot tray and heat transmission, not only cause waste of electric energy, form a hot environment near also making electric hot tray, make the heatproof of product associated components require to improve, the thing followed is disadvantages such as cost increasing, damage probability increase.The 2nd, after pot inner pressure reached the control point, and the displacement drive switch of elastic arm cuts off the power supply, the high-temperature residual heat of electric hot tray continued to pass to interior pot, and the pressure of pot causes the phenomenon of pressure overshoot to occur at pressure control point still continuation rising later in making.This phenomenon can make pot inner pressure control temporarily be in runaway condition, not only influences pressure controlled accuracy, also has certain harmfulness on product safety, therefore can not ignore and disregards.The 3rd, because electric hot tray is contact heat conduction, prior art has quite strict requirement to the contact condition in the electric hot tray and the interior the bottom of a pan, though product can both reach requirement when dispatching from the factory, but the unavoidable distortion that occurs in various degree of pot bottom in daily use, after distortion reaches to a certain degree, will cause the thermo-contact of the two bad, cause properties of product to descend even can not use fully.And the electromagnetic heater that the present invention adopts, according to pot in the heating of electromagnetism heating principle, because of himself does not need heat temperature raising, so there is not waste heat to exist after the outage, just the pressure overshoot phenomenon can be do not occurred yet, pressure controlled accuracy and security of products energy can be improved effectively.In addition, because the electromagnetism mode of heating belongs to contactless heat transfer, the pressure in the bottom of a pan in electromagnetic heater need not carry again, so it and the requirement that does not have strictness cooperating of the interior the bottom of a pan, not only simplified production technology, product had in use both made the distortion of the generation the bottom of a pan also can not influence result of use.Have again, because the interior the bottom of a pan that the magnetic line of force that electromagnetic heater produces directly heats magnetic conduction, so the thermal efficiency exceeds tens percentage points, the consumption of conserve energy effectively than the mode of heating of electric hot tray.Simultaneously, because the temperature around the electromagnetic heater correspondingly reduces, associated components can adopt heatproof to require low relatively material, to reduce production cost.But the present invention is not again the simple replacement of electromagnetic heater and electric hot tray, also need structural design in the enforcement with the coil in the electromagnetic oven, panel, carry out integrated design with transferring structure of heat compensator conducting property of the present invention, power etc., the stressed design in the magnetic conduction design in the pot the bottom of a pan promptly, the interior pot the bottom of a pan, the shaped design of panel and selection, the design of loop construction, the antimagnetic design of outer pot etc. all will the unified designs with the relevant parameter of pot inner pressure controlling organization.
Structure of the present invention is compared more simple and practical with the structure of existing patented technology, except that using the electromagnetism mode of heating can be eliminated the beneficial effect of pressure overshoot phenomenon, energy savings, also because the present invention can save the Mechanically programm's setting between the timing axle of temperature-sensitive dish valve, two-dimentional input type flash switch and timer; Product such as employing screw togather formula and connect, and also can save to close to cover the safety device that puts in place; Adopt friction plate structure not only can realize the safety of uncapping, can also accomplish not have functional hole and other parts that damage easily on the pot cover, the Electromechanical Design level of product is improved etc., no matter be performance indications such as production technology, cost, consumptive material, security, probability of failure, energy resource consumption, the present invention is better than existing patented technology.
Description of drawings:
Fig. 1 is a fundamental diagram of the present invention;
Fig. 2 a kind ofly is arranged on structural representation between outer pot and the shell with flexible member;
Fig. 3 is that the position of switch and flexible member among Fig. 1, outer pot concerns schematic diagram;
Fig. 4 is that the another kind of position of switch and flexible member among Fig. 1, outer pot concerns schematic diagram;
Fig. 5 be the local A of Fig. 2 to view, be that the position of switch and flexible member, outer pot concerns schematic diagram;
Fig. 6 be the local A of Fig. 2 to view, be that the another kind of position of switch and flexible member, outer pot concerns schematic diagram;
Fig. 7 is the profile of the another embodiment of flexible member;
Fig. 8 is the knob structure schematic diagram of uncapping of the friction disk type on the pot cover;
Fig. 9 is the fundamental diagram of combined closing and opening cover during booting structure.
Among the figure in 1. pot covers, 2. sealing rings 3. knob 19 lid friction plates 20. rivets 21. rotating shafts 22. rotating shafts of uncapping of pot 4. outer pots 5. flexible members 6. elastic rings 7. electromagnetism circuits 8. coils 9. panels 10. electromagnetic heaters 11. switches 12. shells 13. bases 14. lead-in wires 15. fixtures 16. static extension 17. button friction plates 18. support 23. pot covers and support 26. pots of bodies of 24. hook 25. pot lid hooks and link up with 27. hanging scrolls
For making drawing succinct, omitted among the figure and adopted the due lines of the mechanical technique of painting, hatching.
The specific embodiment:
Consult Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9.The mutual locations of structures relation of a technical characterictic such as electromagnetic heater 10 (in the frame of broken lines among Fig. 1) that in Fig. 1, illustrates pot cover 1 of the present invention, sealing ring 2, interior pot 3, outer pot 4, flexible member 5, switch 11 and form by electromagnetism circuit 7, coil 8, panel 9.The irrelevant parts of some and this patent function have been saved among the succinct figure of drawing for making.
The electromagnetism heating part in force, coil 8, panel 9 be fixedly installed on 4 ends of outer pot above, the parts such as fan that electromagnetism circuit 7 and cooling electromagnetism circuit are used are fixed on the base 13 in the lump.The lower surface, pot edge of interior pot 3 is sitting on the upper surface of outer pot 4 pot edges.For in the making pot 3 electromagnetic coupled position with electromagnetic heater 10 has magnetic conductivity, except that can making of permeability magnetic material, can also permeability magnetic material such as magnetic stainless steel plate be set in the bottom of the interior pot of making of non-magnet material 3, it is possessed from magnetic energy to the heat energy conversion condition.Because the bottom of a pan of interior pot 3 must be born pot inner pressure separately, the therefore interior the bottom of a pan should not make flat shape, can be made into convex-shaped or following convex.Epirelief sphere shape is made in bottom as interior pot 3, and this epirelief size should be than the height dimension of in the existing electric cooker pot of epirelief more usually, so that obtain better stressed shape.The panel 9 of electromagnetic heater 10 also can be made into the bottom similar shapes with interior pot 3, and the shape of coil 8 cooperates with panel 9, the magnetic conduction the bottom of a pan of pot 3 in can making like this, and the magnetic line of force of receiving coil 8 adds thermal effect so that obtain better electromagnetism fully.Need explanation, because panel 9 is holding capacity not, therefore on structural design, panel 9 and the contact condition of interior pot at 3 ends, only need to be in place by the heating contact condition of electromagnetic oven get final product.Different with the transmission of heat by contact mode of electric hot tray, the bottom of interior pot 3 and the upper surface of panel 9 be allow to have closely spaced.The non-magnetic conduction temperature-resistant material of panel 9 usefulness is made, and based on its position relation, condition such as magnetic conductivity, temperature tolerance not, except that adopting normally used microcrystal glass plate makes, can also adopt other material such as aluminium matter thin plate to make to reduce cost.It is that the aludip of 0.6mm is drawn into the barrel structure form that outer pot 4 can adopt thickness.Can be made into a thin-walled does not have the tubular structure at the end yet, outer pot 4 can also be made a force transmission rack structure.The present invention also needs the magnetic conduction construction of the structural design of the coil in the electromagnetic heater 8, panel 9 and interior pot 3 is carried out integrated design in force, comprising the bottom of a pan magnetic conduction design of interior pot 3 and stressed design thereof, coil 8 and the stressed shaped design of interior pot 3, the shaped design of panel 9, antimagnetic design of outer pot 4 bottoms or the like.
About the combined closing and opening cover during booting structure of pot cover parts and pan body part, comprising pivot structure and hook structure, pivot structure is made up of the rotating shaft support on the pot body and support of the pot cover on the pot cover and rotating shaft etc.; Hook structure by pot lid hook part, pot body hook part, separate hook portion etc. and form.Fixedly install rotating shaft and support 22 on the shift end of flexible member 5, fixedly install pot cover and support 23 on pot cover 1, pot cover supports 23 and supports 22 with rotating shaft and be by rotating shaft 21 and be rotationally connected, and promptly the pot cover part can be along rotating shaft 21 Unscrews.Fixedly install hook structure being provided with on the relative position of pivot structure, wherein pot body hook 26 is fixedly installed on the shift end of flexible member 5, pot lid hook 25 is fixedly installed on the pot cover 1, separating hook portion just is arranged between pot body hook 26 and the pot lid hook 25, make pan body part and pot cover parts be connected (fasten pot cover and be latch hook, open pot cover and be uncoupling) by straightening one out and easing out his anxiety hook portion with the mode folding of latch hook or uncoupling.Need explanation, the common application in electric cooker of above-mentioned combined open and close cover structure, difference is that combined open and close cover structure of the present invention carries pot inner pressure because of needs, must be made up of the metal structure with sufficient intensity, and the transmission link of its power all should be designed to be rigidly connected.
Consult Fig. 1 about the flexible member 5 and the setting of switch 11, have two kinds of forms to be illustrated in Fig. 3 and Fig. 4 respectively.Switch 11 is arranged between the two ends of flexible member 5 in Fig. 1, and wherein the button contact of an end and switch 11 leaves the gap that displacement is used.The local correlation position is illustrated in Fig. 3 after amplifying.In Fig. 3, switch 11 usefulness fixtures 15 are fixed in the shift end of flexible member 5, leave the gap that displacement is used between the button contact of switch 11 and the static extension 16.Static extension 16 is extended rigid structure bodies on the flexible member 5 vertical drums, and leave the gap that displacement is used between the button contact of switch 11, the button contacts mates design of its size, position and switch 11, the stationary end of flexible member 5 is represented in static extension 16, it forms the pressure control structure of the displacement drive switch 11 of flexible member 5 with the shift end of flexible member 5.As shown in Figure 3, switch 11 is fixed on the shift end of flexible member 5 in the enforcement, switch 11 integral body are moved with flexible member 5 with fixture 15.Static extension 16 is the rigid structures that extend out on 4 barrels of walls of outer pot, and the button contact of switch 11 is corresponding with static extension 16, leaves the gap that displacement is used between the two.
In Fig. 4, switch 11 is fixed on the vertical drum of flexible member 5, the position of the horizontal-extending part of fixture 15 and the button contacts mates design of switch 11, leave pressure and control needed displacement gap, fixture 15 is represented 5 shift end of flexible member, with the switch 11 that is fixed on flexible member 5 stationary end, form the pressure control structure of the displacement drive switch 11 of flexible member 5.During enforcement as shown in Figure 4, switch 11 is fixed on the bucket wall of outer pot 4, its button contact and be fixed between the horizontal-extending of the fixture 15 on flexible member 5 shift ends and leave the gap that displacement is used forms static and the form that displacement that its button contact is accepted flexible member 5 touches of switch 11.
Illustrate that in Fig. 2 flexible member 5 is arranged on the outer wall and the relation of the position between the shell 12 of outer pot 4, shown in flexible member 5 make the elastic plate that section is circular arc type, the bucket wall of its lower end and outer pot 4 is fixed, and its upper end is made pot tooth and screwed with the lid tooth of pot cover 1 and be connected.The circular arc type elastic plate can be made several settings that are uniformly distributed along the circumference.In the another kind of version of the flexible member shown in Fig. 25, it also has two kinds with the mode of fixedlying connected of switch 11, is illustrated in Fig. 5, Fig. 6 respectively.In Fig. 6, switch 11 is fixed on the bucket wall of outer pot 4, between the button contact of switch 11 and the shift end of flexible member 5, leaves pressure and controls needed gap, form the pressure control structure of the displacement drive switch 11 of flexible member 5, implementation detail can be with reference to figure 3, Fig. 4.In the enforcement, switch 11 can adopt general microswitch, and its electrical equipment, mechanical parameter, driving touch force parameter and should meet the requirements.The power of wherein touching is about 200gf, and displacement sensitivity is in the scope of ± 0.02mm.Switch 11 can also adopt electric cooker to form with the bimetal strip thermostat transformation of the way, and method is that bimetal leaf is removed the switch sections of only using wherein, and its shortcoming is that volume is big, and advantage is that switching point can be finely tuned.
Be the another kind of version of flexible member 5 shown in Fig. 7, it is made up of elasticity pot tooth and elastic ring 6, wherein elastic ring 6 partly is made up of to the horizontal direction arc transition the bottom of straight barrel section and straight barrel section, and the external diameter of its straight barrel section and outer pot 4 is joined work and is fastenedly connected.Elasticity pot tooth is made up of to the elastic part of horizontal direction arc transition the pot tooth and the straight bucket bottom on straight barrel section and straight bucket top, elasticity pot facing outside elastic ring 6, the two leave can upper and lower displacement the gap.The horizontal-extending end of the horizontal-extending end of the elastic ring 6 shown in the position, lower-left among the figure and elasticity pot tooth must adopt mechanical means to be fastenedly connected.
Friction disk type is uncapped the structural representation of knob in Fig. 8, and in Fig. 8, button friction plate 17 is fixing with the knob 18 of uncapping, and lid friction plate 19 is fixing with pot cover 1, and button friction plate 17 is determined to be connected dynamics with lid friction plate 19 by rivet 20 and riveting process and realized the friction connection.The knob 18 of wherein uncapping can adopt nonmetallic materials making and fixing with button friction plate 17, and lid friction plate 19 is fixing with pot cover 1.Button friction plate 17 is connected by rivet 20 with lid friction plate 19, and the frictional force between button friction plate 17 and the lid friction plate 19 is determined by riveting process.Like this, when pot inner pressure when uncapping safe pressure 5kPa, if surpass the frictional force of setting with the power of the moving knob 18 of uncapping of hand-screw, button friction plate 17 will skid between the friction plate 19 and not open pot cover with covering.The size of frictional force should be as the criterion safely to guarantee to uncap, and suggestion is controlled in the scope of 5kgf～12kgf.The manufacture craft details of this structure can be with reference to the dependency structure in the existing timer product.
In Fig. 9,22 shift ends that are fixed on flexible member 5 are supported in rotating shaft, and pot cover supports 23 and is fixed on the pot cover 1, and rotating shaft is supported 22 and supported 23 with pot cover and be by rotating shaft 21 and be rotationally connected; Pot body hook 26 is fixed on the shift end of flexible member 5, and pot lid hook 25 is fixed on the pot cover 1, and pot lid hook 25 and hook 24 are by hanging scroll 27 and are rotationally connected, pot body hook 26 with link up with 24 foldings that are the uncoupling latch hook and be connected.For making the plastic, thermal-insulation trim that has omitted among the succinct figure of drawing on the pot cover parts, among Fig. 9 not the part of label please refer to Fig. 1.
Embodiment 1, and it is the aluminium sheet making of 2mm that interior pot 3 adopts thickness, and a mouthful diameter is 20cm.At its bottom of a pan compounded magnetic conductive corrosion resistant plate, make it possess magnetic property.It is the aludip making of 0.6mm that outer pot 4 adopts thickness, make a core structure by the reel forming technology, the tube edge on its top is exactly outer pot edge, interior pot 3 transmits the power of coming all is delivered to the flexible member 5 that is fixed on the barrel by this edge stationary end, the bottom of this cartridge type outer pot 4 does not have the end, panel 9 can be made the shape that cooperates with it, this part that so both can make product obtains attractive in appearance, the bottom of a pan and the electromagnetism mode of heating that can avoid again making of permeability magnetic material produce contradiction, can be and kill two birds with one stone.It is that 0.8mm elasticity good metal is made that flexible member 5 is selected thickness for use, can be made into elasticity pot dentition formula as shown in Figure 1, and the length that the pot tooth extends to horizontal direction is selected in about 20mm.The pot cover tooth of the top of flexible member 5 and pot cover 1 screws connecting portion, make the pot tooth that the pot cover tooth with pot cover 1 matches, and pot cover tooth and pot tooth are all made the screw-joining structure of identical little lift angle, and this little lift angle can be selected about 2 °.Pot cover 1 adopts the corrosion resistant plate about 1.0mm to make, and its planform should be similar to the rigidity pot cover of usual pressure pot.Sealing ring 2 usefulness silicon rubber are made, and its sealing place is designed to the linear sealing form, and the sealed diameter of sealing ring 2 is than the little 1mm～3mm of interior pot bore at normal temperatures.Panel 9 uses microcrystal glass plates to make, and with the bottom matching design of roll type outer pot 4.Coil 8 can be made by designing requirement of enamel covered wire, be fixed on panel 9 below.Coil 8, panel 9 all can be made into consistent epirelief shape with the bottom of interior pot 3.The power output of present embodiment coil 8 can make it be controlled at about 1000W by the parameter adjustment of electromagnetism circuit 7.Also should take measures to avoid the bottom of the electromagnetic energy heating outer pot 4 of coil 8 in the enforcement.Use though electromagnetism circuit 7 is ripe prior aries, parts such as its power supply, frequency conversion need be adjusted accordingly with combining of Cooker structure at electromagnetic heating technique.Switch 11 adopts microswitches, two lead-in wire 14 access power supply of connecting with electromagnetism circuit 7.Button friction plate 17 all adopts the corrosion resistant plate about thickness 0.6mm to make with lid friction plate 19, and the working diameter of friction plate 19 is 20mm, and the size of frictional force is controlled at about 10kgf.
Other does not state present embodiment part and can make with reference to the associated components of description of drawings and electric cooker, pressure cooker.
The operation principle of embodiment 1 is: put into the water food of moisture content (or contain) in interior pot, pot cover and outer pot fastening are put in place, after the connection power supply makes switch be in channel status, Chuan Lian electromagnetic heater just converts electrical energy into magnetic energy with it, the interior pot with magnetic conductivity with magnetic energy be converted to again heat energy begin to heat in water in the pot.In heating process, outside air takes the dish out of the pot by the interstitial row between sealing ring and the interior pot wall in the pot.After pot entered sealing state in sealing ring made, begin to produce pressure in the pot and raise gradually. act on the pot cover on pot inner pressure one road direction, be delivered to the flexible member shift end from the lid tooth of pot cover.Act on the interior the bottom of a pan under another road direction, pass to interior pot edge, be delivered to the flexible member stationary end that is fixed on the outer pot bucket wall by the outer pot edge under the interior pot edge again from the interior the bottom of a pan.The pipeline of above-mentioned two-way power forms the closed loop path that pot inner pressure transmits.The power of this two-way opposite sign but equal magnitude, when acting on the two ends of flexible member simultaneously, shift end has just produced the elastic displacement that makes progress, when pot inner pressure reaches switch and the determined numerical value of flexible member (as gauge pressure 100kPa), be subjected to the driving of flexible member displacement, switch just is converted to from path and opens circuit, and the power supply that cuts off electromagnetic heater makes it stop heating.Pot inner pressure descends because of natural heat dissipation, flexible member is based on also the reducing along with pressure of elastic characteristic of himself, reset from transferring to downwards to top offset, after resetting to certain distance, it cause switch to be converted to path again from opening circuit, interior pot is heated by electromagnetic heater again, and pot inner pressure also transfers rising to from decline ..., in the process that so moves in circles, force value in the pot is controlled on switch and the determined force value of pressure displacement parameter all the time, finishes up to culinary art.After culinary art finishes, do not drop to the safe pressure of uncapping when following,, will skid and do not open pot cover with the moving knob of uncapping of hand-screw at pot inner pressure.In the above-mentioned course of work, the conversion of physical quantity is followed successively by: electric energy, and------heat energy---pressure---elastic displacement driving switch is controlled electric energy to magnetic energy again, forms pot inner pressure closed loop automatic control system of the present invention according to this.
Embodiment 2, and combined closing and opening cover during booting structure of the present invention can be with reference to the closing and opening cover during booting structural design of combined electric cooker.But relevant parts will select high-intensity anticorrosion metal material to make.In the enforcement, select the high-strength stainless steel sheet of thickness at 1mm for use, make the structural member that has reinforcement, rotating shaft 21 will adopt high-intensity stainless steel to make, and its diameter is selected greater than 4mm to well.Pivot structure in this structure is made up of rotating shaft support 22, pot cover support 23 and rotating shaft 21; Hook structure is made up of pot lid hook 25, pot body hook 26, hook 24 and hanging scroll 27.During enforcement, except that pressing respectively the mechanical strength project organization part of each structure, the enforcement global design can also combine each structure, as needing to be fixed on simultaneously the rotating shaft support 22 and the pot body hook 26 of flexible member 5 shift ends, adopt the circulus of the corrosion resistant plate making of a reinforcement, above-mentioned three is fixed together, and the integrated support that forms the pot body portion goes partly to be connected with pot cover.In like manner, pot cover support 23 on the pot cover part, pot lid hook 25, hanging scroll 27 also can be designed as integral type, combine composition pot cover part with pot cover 1, be that pot cover support 23, pot lid hook 25 can adopt same corrosion resistant plate punching press to make, be connected to form the force structure of an integral body again with pot cover 1, make the pressure carrying of this structure more reasonable.Because this integral structure, can improve the pressure bearing capacity of pot cover 1 effectively, so its material can reduce significantly, during enforcement, can select thickness for use is that the corrosion resistant plate of 0.6mm is made.In combined closing and opening cover during booting structure, after pot inner pressure acts on pot cover 1, support 23 by pot cover and be delivered to rotating shaft 21 and link up with 24 with pot lid hook 25, hanging scroll 27, hook 26, and by link up with 24, rotating shaft 21 passes to a pot body hook 26,22 shift ends to flexible member 5 are supported in rotating shaft.The bang path of other power is with embodiment 1.
Other implementation detail of present embodiment can be with reference to description of drawings and embodiment 1.
Claims (7)
1. electromagnetic heating pressure cooking device, comprise pot cover (1), sealing ring (2), interior pot (3), outer pot (4), flexible member (5), switch (11), sealing ring (2) is arranged between pot cover (1) and the interior pot (3), the pot edge of interior pot (3) is sitting on the pot edge of outer pot (4), flexible member (5) is arranged on the outside of outer pot (4), it is characterized in that: this device also comprises an electromagnetic heater (10), and it is arranged under the interior pot (3), and the access power supply of connect with switch (11).
2. a kind of electromagnetic heating pressure cooking device according to claim 1, it is characterized in that: an end of described flexible member (5) and pot cover (1) are movable and are rigidly connected, the other end is fixedlyed connected with outer pot (4), the direct driving switch of its displacement that produces under the pot inner pressure effect (11) break-make.
3. a kind of electromagnetic heating pressure cooking device according to claim 1 and 2, its feature is being: described sealing ring (2) leaves certain clearance when cold conditions and between the interior pot wall.
4. a kind of electromagnetic heating pressure cooking device according to claim 1 and 2 is characterized in that: the friction disk type knob structure of uncapping is set on described pot cover (1).
5. a kind of electromagnetic heating pressure cooking device according to claim 3 is characterized in that: the friction disk type knob structure of uncapping is set on described pot cover (1).
6. a kind of electromagnetic heating pressure cooking device according to claim 1 and 2 is characterized in that: on described pot cover (1) heat-insulation layer is set, described switch (11) is a bi-stable type.
7. according to claim 1,2 or 5 described a kind of electromagnetic heating pressure cooking devices, it is characterized in that: on described pot cover (1) heat-insulation layer is set, described switch (11) is a bi-stable type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113848 CN2838487Y (en) | 2005-07-20 | 2005-07-20 | Electromagnetic heating pressure cooking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113848 CN2838487Y (en) | 2005-07-20 | 2005-07-20 | Electromagnetic heating pressure cooking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2838487Y true CN2838487Y (en) | 2006-11-22 |
Family
ID=37426477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520113848 Expired - Fee Related CN2838487Y (en) | 2005-07-20 | 2005-07-20 | Electromagnetic heating pressure cooking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2838487Y (en) |
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2005
- 2005-07-20 CN CN 200520113848 patent/CN2838487Y/en not_active Expired - Fee Related
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Patentee address after: 528300 Guangdong city of Foshan province Shunde City Jiaxin Garden 6 1A Patentee address before: 100080 Institute of zoology, Chinese Academy of Sciences, Beijing, Zhongguancun |
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Granted publication date: 20061122 Termination date: 20100720 |