Electric pressure cooking appliance
Technical field
The utility model belongs to a kind of day electricity consumption cooking apparatus, particularly a kind of electric pressure cooking appliance that can change adjusting heater break-make or heating power size according to pot inner pressure.
Background technology
China ZL91100026.7 patent, provided a kind of full seal automatic multifunctional electric cooker, it adopts " Contraband " formula structure and pot cover, sealing ring, the pot body, electric hot plate, flash switch is formed the pressure automatic control mechanism of electric cooker jointly, realized that electric pressure cooking appliance pressure controls automatically, but because pressure sensing component is arranged at the utensil bottom, the pressure of institute's sensing has comprised the pot body, electric hot plate, the pressure that weight produced of pot cover and food, and the weight of food is often to change in the pot, therefore the deviation of pressure-sensing is bigger, influences the culinary art effect of pressure controling precision and food.
The utility model content
The purpose of this utility model is to overcome above-mentioned shortcoming, and providing a kind of can change the electric pressure cooking appliance of regulating heater break-make or heating power size automatically according to interior pot inner pressure.
The purpose of this utility model is realized by following technical proposals.
The utility model comprises a pot body, pot cover component, interior pot, pressure control mechanism, be provided with inner pot cover in the pot cover component, inner pot cover and interior pot are realized sealing by sealing ring, wherein pressure control mechanism comprises forced induction valve, switch, forced induction valve comprises that the cavity valve body that is arranged on the inner pot cover, the float valve, the valve body lower end that are arranged in the valve cavity movingly are provided with the elastic sealing element that makes realization sealing between valve body and the interior pot, the corresponding float valve setting of switch.
Described valve body and inner pot cover are structure as a whole, or valve body is fixedly mounted on the inner pot cover.
Described switch is the bimetal leaf pressure switch, or microswitch, or the bimetal leaf flash switch.
Described switch is directly aimed at the top that float valve is installed in float valve.
Between described switch and the float valve transmission levers is installed.
Product based on said structure comprises safety relief valve, the anti-cap-opening mechanism of pressure state, air bleeding valve, computer or Electronic Control display system etc. toward contact, because of belonging to prior art, no longer describes in detail.
When the utility model used, interior pot placed food to be cooked, and covers inner pot cover, and inner pot cover and interior pot are realized sealing by sealing ring; When utensil does not heat, be atmospheric pressure state in the interior pot, after the utensil energising starts, heater begins heating, interior kettle temperature rises, and has water vapour to produce gradually, and interior pot inner pressure progressively increases, when pressure during greater than the float valve resistance of motion, elastic sealing element begins to hold up float valve, and along with the continuous increase of pot inner pressure, float valve continues to rise and directly or through transmission levers touches flash switch or microswitch or displacement transducer indirectly, produce the signal of telecommunication, thereby heater outage or heating power are reduced; The float valve resistance of motion has comprised the gravity of float valve, the frictional force of float valve motion etc.; Along with the outage or the heating power of heater reduces, pressure in the interior pot progressively reduces, when pressure during less than the float valve resistance of motion, float valve moves downward, leave flash switch or microswitch or displacement transducer, produce the signal of telecommunication, thereby the energising again of heater or heating power are increased; Move in circles like this, food reaches the culinary art requirement in pot.
The present invention compared with prior art its beneficial effect is: because forced induction valve is arranged on the inner pot cover, the pressure of institute's sensing is irrelevant with the weight of the interior food of pot, so the deviation of pressure-sensing is less, the pressure controling precision height, and the culinary art of food is effective; Simultaneously, thereby directly convert pressure signal to displacement signal and drive flash switch or the break-make of microswitch control and regulation electric pressure cooking appliance heater or the size of heating power by float valve, so reliable in structure, be easy to realize, and stable performance.
Description of drawings
Fig. 1 is the structural representation of embodiment 1 of the present utility model;
Fig. 2 is the structural representation of embodiment 2 of the present utility model.
Omitted among the above-mentioned figure and other irrelevant parts of the present utility model point.
The specific embodiment
Embodiment 1:
As shown in Figure 1, the electric pressure cooking appliance of the utility model embodiment 1, pot cover component 8 is installed in the top of pot body 7, in the pot body 7 outer pot is housed, electric hot tray is installed on the outer pot, be placed on the electric hot tray for the pot of being put into by cooking food 9, pot cover component 8 is provided with inner pot cover 1, and inner pot cover 1 is realized sealing by sealing ring and interior pot 9; On inner pot cover 1, be provided with forced induction valve, comprise: valve body 3, float valve 4, elastic sealing element 2, valve body 3 is structure as a whole with inner pot cover 1, float valve 4 is installed in the cavity of valve body 3, be movingly, elastic sealing element 2 is installed on valve body 3 lower ends, and elastic sealing element 2 makes valve body 3 airtight with interior pot 9; The microswitch 5 that detects float valve 4 displacements can be arranged on the inner pot cover 1, also can be arranged on the pot cover component 8, the action contact of microswitch 5 is just in time aimed at float valve 4, when float valve 4 moves upward because of pot inner pressure raises, touch microswitch 5 actions, produce the signal of telecommunication, thereby regulate the break-make of electric hot tray or the size of heating power;
Except that above critical piece; electric pressure cooking saucepan also is provided with parts such as safety relief valve, the anti-cap-opening mechanism of pressure state, air bleeding valve, computer or Electronic Control display system, Thermal Cutoffs, power line, handle, internal connection line usually; because of belonging to mature technology, no longer describe in detail.
Embodiment 2:
The electric pressure cooking appliance of present embodiment as shown in Figure 2.Wherein, between float valve 4 and microswitch 5, set up transmission levers 6, when interior pot 9 internal pressures increase, during greater than float valve 4 resistances of motion, float valve 4 moves upward, and touches transmission levers 6, transmission levers 6 touches microswitch 5, produces the signal of telecommunication, thereby regulates the break-make of electric hot tray or the size of heating power.Other structure is identical with embodiment 1.