CN201617653U - Electric pressure cooker - Google Patents

Abstract

The utility model provides an electric pressure cooker adopts the displacement volume when pot pressurized in the direct detection, controls the pressure of the interior during operation of pot more accurately, and pressure control is accurate, does not increase the cost. The electric pressure cooker comprises more than one elastic element and more than one electric heating plate elastic supporting piece; the elastic element is arranged between the flange edge of the inner pot and the flange edge of the outer pot, and the elastic support piece of the electric heating plate is arranged between the bottom of the electric heating plate and the outer pot and plays an elastic support role on the electric heating plate; and a pressure sensor capable of detecting the displacement of the elastic element is arranged in a space formed by the steel cover and the shell, the pressure sensor detects the displacement of the elastic element and converts the displacement into an electronic signal to be transmitted to a circuit board chip of the electric pressure cooker, and the circuit board chip judges the pressure in the cooker at the moment so as to control the working state of the electric heating plate.

Description

A kind of electric pressure cooking saucepan

Technical field

The utility model belongs to the small household appliances technical field, relates in particular to a kind of electric pressure cooking saucepan, is specially the pressure control structure of electric pressure cooking saucepan.

Background technology

At present, electric pressure cooking saucepan obtains being extensive use of of people with its characteristics easily and fast.The pressure type control formula electric pressure cooking saucepan of prior art, its implementation mainly is by the distortion generation displacement of the flexible member between pot and the outer pot in being installed in and converts electronic signal to, be sent in the circuit board controller, controller inductive displacement signal, the working condition of control panel plate, thus reach pressure controlled purpose.

Yet can there be following shortcoming in this class formation:

1. be the displacement transferring elements with the electric hot plate, heating board can deform in the course of the work, and therefore, resulting displacement is that interior pot displacement adds the electric hot plate deflection in the actual pressure control, makes pressure control produce certain deviation;

2. outer pot bears very big pressure, and the outer pot material is a general steel plate, and intensity is relatively poor, therefore all increases outer pot intensity to strengthen thickness usually, has increased cost.

Summary of the invention

The purpose of this utility model is to provide a kind of electric pressure cooking saucepan, the displacement when adopting pot pressurized in directly detecting, and the pressure when working in the pot is controlled more exactly, and pressure control is accurate, does not increase cost.

For achieving the above object, the technical scheme that provides of the utility model is:

A kind of electric pressure cooking saucepan includes shell and the loam cake that is fastened on described shell upper, is provided with steel lid in the described loam cake, is provided with an outer pot in the described shell; Place pot in the described outer pot inner chamber, the inner edge periphery of steel lid is provided with a seal, and described steel lid is fastened and connected with outer pot, and described steel lid, seal, interior pot three constitute a seal cavity; One electric hot plate is positioned at the bottom of described pot; Wherein, described electric pressure cooking saucepan also comprises more than one flexible member and more than one electric hot plate elastic supporting member for supporting optical member; Between pot flange and the outer pot flange, described electric hot plate elastic supporting member for supporting optical member was installed between electric hot plate bottom and the outer pot, and electric hot plate is played the resiliency supported effect in described flexible member was installed in; In the space that described steel lid and shell form, also be provided with the pressure sensor of a detectable described flexible member displacement, described pressure sensor detects the displacement of flexible member, and convert in the circuit board chip that electronic signal is sent to electric pressure cooking saucepan, the circuit board chip is judged the pressure in pot this moment, with the duty of control electric hot plate.

Described electric hot plate elastic supporting member for supporting optical member is a kind of electric hot plate spring.

The beneficial effects of the utility model are as follows:

A kind of electric pressure cooking saucepan of the present utility model is owing to comprise more than one flexible member and more than one electric hot plate elastic supporting member for supporting optical member; Between pot flange and the outer pot flange, described electric hot plate elastic supporting member for supporting optical member was installed between electric hot plate bottom and the outer pot, and electric hot plate is played the resiliency supported effect in described flexible member was installed in; Described steel lid fastens in the space that forms with outer pot, also is provided with a pressure sensor of surveying described flexible member displacement.

When not having pressure in the pot, described electric hot plate is fixing under the supporting role of electric hot plate spring, and electric hot plate and interior pot are fitted fully, and described flexible member in the raw strain does not take place at this moment.

When producing pressure in the pot, interior pot overcomes the elastic force of electric hot plate spring under pressure, does a certain amount of displacement downwards, and can produce the flexible member below the pot flange in being installed in to the power that presses down this moment; Simultaneously, steel covers under the effect of pot inner pressure and moves up, until closely fastening with outer pot.At this moment, because outer pot is fixed, and flexible member has the trend that relative outer pot moves down under the effect of interior pot applied force, therefore flexible member can reach equilibrium of forces by the certain displacement of its strain generation, simultaneously, be installed in the displacement that pressure sensor between electric hot plate and the outer pot obtains flexible member, and convert electronic signal to and be sent in the circuit board chip, judge the pressure in pot this moment, with the duty of control electric hot plate, thereby reach the purpose of controlled pressure.

Therefore, a kind of electric pressure cooking saucepan of the present utility model, advantage is:

1. pot displacement, controlled pressure more exactly in can directly detecting;

2. can avoid outer pot to bear big pressure;

3. simple in structure, realize the production in enormous quantities of electric pressure cooking saucepan easily.

Description of drawings

Fig. 1 is the overall structure cutaway view of a kind of electric pressure cooking saucepan of the present utility model.

Description of reference numerals:

1, steel lid, 2, seal, 3, flexible member, 4, interior pot, 5, outer pot, 6, pressure sensor, 7, the electric hot plate elastic supporting member for supporting optical member, 8, electric hot plate.

The specific embodiment

Ask for an interview Fig. 1, the utility model discloses a kind of electric pressure cooking saucepan, and a kind of electric pressure cooking saucepan includes shell and the loam cake that is fastened on described shell upper, is provided withsteel lid 1 in the described loam cake, is provided with an outer pot 5 in the described shell; Placepot 4 in described outer pot 5 inner chambers, the inner edge periphery ofsteel lid 1 is provided with aseal 2, and describedsteel lid 1 is fastened and connected with outer pot 5, and describedsteel lid 1,seal 2,interior pot 4 threes constitute a seal cavity; One electrichot plate 8 is positioned at the bottom of describedpot 4; Wherein, described electric pressure cooking saucepan also comprises more than oneflexible member 3 and more than one electric hot plate elastic supporting member for supporting optical member; Betweenpot 4 flanges and outer pot 5 flanges, described electric hot plate elastic supporting member for supporting optical member was installed between electrichot plate 8 bottoms and the outer pot 5, and electrichot plate 8 is played the resiliency supported effect in describedflexible member 3 was installed in; In the space that describedsteel lid 1 and shell form, be provided with thepressure sensor 6 of a detectable described flexible member displacement, describedpressure sensor 6 detects the displacement of flexible member, and convert in the circuit board chip that electronic signal is sent to electric pressure cooking saucepan, the circuit board chip is judged the pressure in pot this moment, with the duty of control electric hot plate.

Described electric hot plate elastic supporting member for supporting optical member is a kind of electric hot plate spring 7.Describedpressure sensor 6 is arranged between electrichot plate 8 and the outer pot 5, and describedpressure sensor 6 is provided with the contact, and electric hot plate is provided with and the corresponding protuberance in contact.

Describedflexible member 3 can be spring, manganese steel plate, SUS304 steel plate etc.Describedsteel lid 1 is provided with bending part, and described bending part is corresponding with the flange of outer pot.

Describedflexible member 3 adopts the ring-type overall structure; Or describedflexible member 3 is that little steel plate is distributed oninterior pot 4 flanges and outer pot 5 flanges more than three.

The shape and structure of describedflexible member 3 is flat board or U-shaped plate or spherical crown curved surface shaped or is beneficial to the folded shape structure of carrying out strain.

Describedpressure sensor 6 can be normally closed or normal open switch such as pressure switch, microswitch.

Describedpressure sensor 6 is installed in the place, base angle of outer pot 5.

When not having pressure in the pot, electrichot plate 8 is under the effect of electrichot plate spring 7, and electrichot plate 8 is fitted fully withinterior pot 4, andflexible member 3 in the raw strain does not take place at this moment;

When producing pressure in the pot,interior pot 4 overcomes the elastic force of electrichot plate spring 7 under pressure, does a certain amount of displacement downwards, and can produce to the power that presses down by opposedflexible member 3 belowinterior pot 4 flanges this moment; Simultaneously,steel lid 1 moves up under the effect of pot inner pressure, closely fastens until the bending part ofsteel lid 1 and the flange of outer pot 5.At this moment, because outer pot 5 is fixed, andflexible member 3 has the trend that relative outer pot 5 moves down under the effect ofinterior pot 4 applied forces, thereforeflexible member 3 can reach equilibrium of forces by the certain displacement of its strain generation, electrichot plate 8 also produces certain displacement downwards along withinterior pot 4 moves down, protuberance until electrichot plate 8 contacts with the contact ofpressure sensor 6, at this moment, be installed in the displacement thatpressure sensor 6 between electrichot plate 8 and the outer pot 5 obtainsflexible member 3, and convert electronic signal to and be sent in the circuit board chip, judge the pressure in pot this moment,, thereby reach the purpose of controlled pressure with the duty of control electrichot plate 8.

Above-mentioned listed specific implementation is nonrestrictive, and to one skilled in the art, in not departing from the utility model scope, various improvement and the variation carried out all belong to protection domain of the present utility model.

Claims (6)

1. an electric pressure cooking saucepan includes shell and the loam cake that is fastened on described shell upper, is provided with steel lid (1) in the described loam cake, is provided with an outer pot (5) in the described shell; Place pot (4) in described outer pot (5) inner chamber, the inner edge periphery of steel lid (1) is provided with a seal (2), and described steel lid (1) is fastened and connected with outer pot (5), and described steel lid (1), seal (2), interior pot (4) three constitute a seal cavity; One electric hot plate (8) is positioned at the bottom of described pot (4); It is characterized in that: described electric pressure cooking saucepan also comprises more than one flexible member (3) and more than one electric hot plate elastic supporting member for supporting optical member; Described flexible member (3) is installed between interior pot (4) flange and outer pot (5) flange, and described electric hot plate elastic supporting member for supporting optical member is installed between electric hot plate (8) bottom and the outer pot (5), and electric hot plate (8) is played the resiliency supported effect; In the space that described steel lid (1) and shell form, be provided with the pressure sensor (6) of a detectable described flexible member displacement, described pressure sensor (6) detects the displacement of flexible member, and convert in the circuit board chip that electronic signal is sent to electric pressure cooking saucepan, the circuit board chip is judged the pressure in pot this moment, with the duty of control electric hot plate.

2. a kind of electric pressure cooking saucepan as claimed in claim 1, it is characterized in that: described electric hot plate elastic supporting member for supporting optical member is a kind of electric hot plate spring (7), described pressure sensor (6) is arranged between electric hot plate (8) and the outer pot (5), described pressure sensor (6) is provided with the contact, and electric hot plate is provided with and the corresponding protuberance in contact.

3. a kind of electric pressure cooking saucepan as claimed in claim 1 or 2 is characterized in that: described flexible member (3) is spring or manganese steel plate or SUS304 steel plate, and described steel lid (1) is provided with bending part, and described bending part is corresponding with the flange of outer pot.

4. a kind of electric pressure cooking saucepan as claimed in claim 3 is characterized in that: described flexible member (3) adopts the ring-type overall structure.

5. a kind of electric pressure cooking saucepan as claimed in claim 3 is characterized in that: described flexible member (3) is that little steel plate is distributed on interior pot (4) flange and outer pot (5) flange more than three.

6. a kind of electric pressure cooking saucepan as claimed in claim 5 is characterized in that: the shape and structure of described flexible member (3) is flat board or U-shaped plate or spherical crown curved surface shaped.

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