CN1864607A - Heat-storing constant-pressure electric pressure cooker - Google Patents
Heat-storing constant-pressure electric pressure cooker Download PDFInfo
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- CN1864607A CN1864607A CN 200610035008 CN200610035008A CN1864607A CN 1864607 A CN1864607 A CN 1864607A CN 200610035008 CN200610035008 CN 200610035008 CN 200610035008 A CN200610035008 A CN 200610035008A CN 1864607 A CN1864607 A CN 1864607A
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Abstract
The heat-accumulating constant pressure type electric pressure cooker consists of mainly cover, outer casing, outer pot, inner pot, heating and energy accumulating tray, pressure release valve, cover locking mechanism, control circuit system and other parts. The heating and energy accumulating tray consists of casing, heating layer with heating resistor wire and heat accumulating insulation layer, and is installed via one installation board to the bottom of the cooker. The electric pressure cooker has simple on-off type control circuit system, outer pot with rigid bottom, and temperature inducing controlled pressure switch. The electric pressure cooker has simple structure, low cost, high reliability, high safety, low power consumption, environment friendship and other advantages. With constant pressure, the electric pressure cooker has its cooked food possessing good taste.
Description
Affiliated technical field
The present invention relates to a kind of electric pressure cooking saucepan, especially a kind of heat-storing constant-pressure electric pressure cooker.
Technical background
At present, the electric heater of general electric pressure cooking saucepan all adopts resistance wire is fixed in the metal tube with insulating heat-conduction material, adopts extrusion process to be processed as one metal tube and bottom heating plate again, relies on heat-conduction principle directly heating plate to be heated.Its main bad point shows following several respects: one, the heating plate bottom reaches the heat major part that is produced all around and distributes externally environment, and heat utilization efficiency is low; Two, be heated to uniform temperature when heating thing, the heating plate temperature descends soon behind the deenergization, and pressure maintaining performance is poor, and insulation then can only be interrupted and connects power supply and heating plate is heated the waste electric energy as needs.Three, METAL HEATING PROCESS dish processing characteristics requires height, contaminated environment in work flow, and waste metal material.
The following several pressure regulation forms of the general employing of electric pressure cooking saucepan by above electric heater heating and constant voltage:
One, between interior pot and outer pot, be provided with ripple plate that an elasticity sensitive material makes, transmit out with this pressure with interior pot, transmit by conversion again, the switch of this pressure signal control circuit is realized pressure controlled full-automation the most at last.For example Chinese patent 93216338.6 is exactly a kind of pressure-controlled full automatic electric pressure cooker that adopts this structure, and this electric pressure cooking saucepan is because the outer pot the bottom of a pan will be designed to annular ditch slot type corrugated plating and want beading, and difficulty of processing is big, the cost height.
Two, will establish the combination butterfly spring between outer pot and the heat-generating disc, with the transmission of pressure signal in the pot in realizing, this method exists difficulty of processing big equally, the problem that cost is high.Because the automatic control system structure of pressure-controlled electric pressure cooking saucepan is complicated, signaling path is long, and comes disconnecting circuit by the mechanical process of a gradual change simultaneously, so poor reliability, pressure controling precision is difficult to again guarantee.
Three, with the even some identical spirality support springs of distribution design between heat-generating disc and the outer pot, realize control and regulation pressure (as described in Chinese invention patent 97114306.4) by the drive link transmission between outer pot and the shell.
Four, the pressure automatic control switch is the pressure sensitive control principle.This control principle not only pressure controling precision is not high, and in insulation and constant voltage process connecting and disconnecting circuit repeatedly, electric current instantaneous variation in this process is easy to generate defectives such as spark, electric arc, also can occur opening circuit and hidden danger such as short circuit after circuit wears out.
In a word, general electric pressure cooking saucepan all is to realize that by the principle that the mechanical elasticity principle is connected power supply repeatedly and cut off the constant voltage of electric pressure cooking saucepan keeps because of the principle of electric heater is identical, its general duty is that circuit disconnects and to connect can keep-up pressure for 30 seconds a pressure " constant " in the pot of circuit after 2 minutes, so repeatedly.Its main bad point shows following several respects: (one), bottom electrical heating plate be contaminated environment in complex manufacturing technology, the work flow not only, and waste metal material and heat utilization efficiency, heat-insulating property are poor; (2), the mechanical elastic pressure regulating device is complicated, cost of manufacture is high, reliability is not high; (3), the circuit control system complexity, involve great expense and control the crash rate height; (4), in high-pressure process, heat repeatedly, pressurize, pressure oscillation is big, pressure control switch in the switching process easily control lost efficacy poor safety performance; (5), connect power supply repeatedly and not only make circuit ageing failure but also heat utilization efficiency easily at the bottom of, the waste electric energy.
Summary of the invention
In order to overcome the above deficiency of existing general electric pressure cooking saucepan, the invention provides a kind of novel heat-storing constant-pressure electric pressure cooker.The technical solution adopted for the present invention to solve the technical problems is shown in following several respects:
(1), general electric heater is improved to a kind of heat storage and insulation energy-saving environment-protective electric heater.
This heater is made up of heating layer housing, heating layer, heat accumulation insulating barrier, and wherein heating layer housing, heating layer, heat accumulation insulating barrier adopt the different materials prescription to process according to performance requirement; It is secure mounting arrangements that metallic plate is arranged between the heat accumulation insulating barrier and the outer pot the bottom of a pan; Heating layer housing, heating layer, heat accumulation insulating barrier and metallic plate are assembled in order; (specific embodiment is with reference to Chinese patent application patent " heat storage and insulation energy-saving environment-protective electric heater " application number: 200510102350.X) with the heater overall fixed thereby metallic plate is fixedly mounted on the outer pot pot bottom by screw.
That this heater also has when satisfying general electric heater all properties is simple in structure, practical, insulation and advantage such as energy-conservation.It mainly shows 3 aspects: (1), processing technology are simple, at the bottom of the percent defective; (2), do not spend Surface Machining and waste metal material, the material requested cost only be general heating plate used 10, save a large amount of metal materials; (3), need not heat in the process, not produce any refuse, preserve the ecological environment effectively; (4), the hot major part of heating layer generation is transmitted to metal mounting disc heating vessel bottom by the heating layer housing fast; The fraction heat that heating layer produces stores by the heat accumulation insulating barrier to be recycled, and saves big energy.(5), at the bottom of simple, the cost of manufacture of this heater Mold Making, can suit to be processed as difform heating plate.
(2), improve the Circuits System and the circuit control system of existing general electric pressure cooking saucepan.
Because of directly utilizing electric heater bottom storage energy, the present invention guarantees in the electric pressure cooking saucepan constant pressure under the high temperature and elevated pressures state, repeatedly the make-and-break contact pressure " constant " in the pot that can keep-up pressure.Feedback is omitted feedback and the control loop that the circuit weak point is opened and connected in the Circuits System of the present invention aspect Circuits System, only kept power lights and 2 signal lamps of heating lamp in the general electric pressure cooking saucepan; Pressure controller, temperature controller and 3 control elements of timer and hot melt cut-off protector.
By simplifying Circuits System, solved original general electric pressure cooking saucepan circuit control system complex structure, the bad point that signaling path is long and control was lost efficacy.This circuit control system not only loop is simple, and reliability height, control make things convenient for and saved a large amount of components, thereby have reduced the Circuits System manufacturing cost.
(3), improve the computerized control system and the signal feedback system of existing general electric pressure cooking saucepan.
The present invention directly utilizes the characteristics of constant pressure under interior high temperature of electric heater bottom storage energy assurance electric pressure cooking saucepan and the elevated pressures state, has simplified the computerized control system and the signal feedback system of existing general electric pressure cooking saucepan.General electric pressure cooking saucepan carries out function setting according to instructions for use, in use computerized control system constantly detects pot inner pressure and temperature according to setup parameter and whether satisfies setting value, with institute's detected value feedback to the computer control treatment system, after reaching certain value, temperature and pressure need condition backfeed loop received signal to cut off or the closed circuit switch again then.The present invention is satisfying existing all serviceabilities of general electric pressure cooking saucepan needs signal feedback control loop system no longer simultaneously, in no longer needing to check after selecting by simple function in the pot variation of pressure whether satisfy the requirement of related work condition.
Simplify computerized control system and not only reduced feedback circuit control loop component, simplified the structure and the manufacturing cost of signal lamp, and do not worried producing functional disturbance and potential safety hazard because of backfeed loop loses efficacy without the improvement of signal feedback system.
(4), improve original general electric pressure cooking saucepan warmer structure.
Because of the present invention directly utilizes the stored energy in electric heater bottom, guarantee that the electric pressure cooking saucepan internal pressure is constant, and the stored energy slow release in electric heater bottom is implemented the function of heating and insulation, heat energy is fully utilized, under the normal temperature and the situation that need not heat, can be incubated 3～4 hours continuously, satisfy the heat-insulating property of general electric pressure cooking saucepan.The present invention has simplified the warmer of original electric pressure cooking saucepan, saves the manufacturing cost and the material cost of warmer.
(5), improving general electric pressure cooking saucepan pressure automatic control switch control principle is the temperature sense control principle.
The present invention adopts temperature sense control principle controlled pressure autocontrol switch.General electric pressure cooking saucepan adopts its principle of pressure control autocontrol switch to be: after pot inner pressure reaches setting value, interior pot produces extruding force to outer pot, the outer pot the bottom of a pan is because of the stressed elastic device that pushes the bottom installation, push the autocontrol switch push rod open by the distortion of elastic device, realize the purpose of outage control.Its main bad point shows following two aspects: at first, pressure sensitive control control accuracy is not high, often causes control to be lost efficacy.Secondly, because of keeping high pressure conditions in the pressure cooker, the induction of solid pressure power must be carried out under high pressure (being generally 90Kpa) state, and security performance is not high.Inductor is cut off the electricity supply at once as long as temperature reaches the setting value back in temperature sense control, realizes pressure control autocontrol switch
In a word, the invention has the beneficial effects as follows when satisfying general electric pressure cooking saucepan all properties, have simple in structure, processing technology is simple, cost is low, reliability height, practicality, environmental protection and energy-conservation characteristics, with the food of the being cooked taste of food deliciousness of cooking than general electric pressure cooking saucepan because of constant pressure, be fit to vast family and use.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structure principle chart of the present invention.
Fig. 2 is a circuit circuit diagram of the present invention.
Fig. 3 is the circuit circuit diagram of general electric pressure cooking saucepan.
Among Fig. 1: 1, pot cover, 2, shell, 3, outer pot, 4, interior pot, 5, heating energy storage dish, 6, relief valve, 7, the trivial tight mechanism of pot cover, 8, circuit and computerized control system.
The specific embodiment
In Fig. 1, pot cover (1) is provided with sealing ring with the sealing of whole cooker body between pot cover (1) and interior pot (4), makes pot cover (1) build the whole interior pot in back (4) by the locking trivial tight mechanism of pot cover (7) and is in complete sealing state, does not have steam and leak; Heating energy storage dish (5) is under interior pot (4), its convex surface is recessed closely obedient mutually with interior pot (4), heating energy storage dish (5) is fixing with outer pot (3), rigidity is installed and cooperated, heating resistance wire is drawn by heating energy storage dish (5) is down disconnected, through the formation electric control system (8) that links to each other with external power receptacle behind the circuit controling element; The socket push-button design in the electric pressure cooking saucepan appropriate location so as the operation.
When pressing circuit control system (8) operating key, circuit is in on-state, and the resistance wire heating begins heating energy storage dish (8) heating, and the energy storage dish that generates heat simultaneously begins to store resistance wire bottom and the peripheral heat that is produced.Heating energy storage dish (8) internally heats pot (4) bottom by the heat conduction, when being heated to certain waste heat.Heating energy storage dish (8) internally heats pot (4) bottom by the heat conduction, and power supply is by circuit control system (8) control instruction (concrete design temperature is adjustable) deenergization after being heated to uniform temperature (being generally 90 ℃); Heating energy storage dish (5) utilizes energy stored in heating process to continue internally pot (4) bottom heating, water boiling in interior pot (4), pot (4) pressure inside increases simultaneously, maximum pressure (the maximum pressure release adjustable in pressure that sets up to relief valve (6), be generally 90KPa), (sustainable more than 70 minutes in a period of time like this, and general electric pressure cooking saucepan only is about 30 minutes), by the stored heat of heating energy storage dish (5) constantly internally the heating of pot (4) bottom and can keep the fluidized state of constant compression force and water realize general electric pressure cooking saucepan powerful (and general pot of electric pressure need directly be heated to deenergization behind the maximum pressure, be interrupted and connect power supply compensation heating in 30 seconds after about 2 minutes, so go round and begin again).
With reference to the accompanying drawings 2 and accompanying drawing 3 as can be known, the present invention has reduced following partial circuit figure in circuit circuit diagram: function automatic selection circuit, automatic power regulation control circuit and in good time control circuit.Its cost only is about 1/2 of a general electric pressure cooking saucepan circuit control system cost.
Repeatedly on probation according to general electric pressure cooking saucepan and this embodiment, this invention is compared with general electric pressure cooking saucepan main performance, and its parameter is as follows:
1, power save parameters: because of the heat accumulation usefulness of this invention electric heater, but utilize the power saving about 30% of cooking of this electric pressure cooking saucepan, but pot congee, Baoshang, stewing, stew, power saving 50% when steaming;
2, joint material parameter: heat-generating disc utilizes regeneration feed in a large number, does not need precious metal (as aluminium alloy, aluminium sheet and stainless steel and other metal materials); Need not make elasticity heating chassis, only need one base plate is installed; Do not need to use the shell heat insulation function, thereby the cancellation attemperator makes this departmental cost only be about 80% of general electric pressure cooking saucepan cost;
3, circuit cost: omit feedback and control loop that the circuit weak point is opened and connected, making this invention circuit cost is about 1/2 of general circuit cost price;
4, computer line cost: the technological improvement that computerized control system, signal feedback system are simplified in this invention has not only reduced feedback circuit control loop component, the structure and the manufacturing cost of signal lamp have been simplified, its cost only is 1/5 of a general electric pressure cooking saucepan computer circuit cost price, and does not worry producing potential safety hazard because of backfeed loop loses efficacy; Prolonged the service life of electric pressure cooking saucepan greatly.
5, timer cost: changing electronic timer is that mechanical timer is saved cost more than 55%;
6, pressure protective device: this invention pressure security control protective valve only uses once in each use, and the general each use of electric pressure cooking saucepan all is not less than 20 times.Each moment connect and short open circuit process in be easy to generate spark, electric arc causes hidden danger such as the line insulation layer burns, wears out.Improving in the each use in back only needs to connect once, on-off action repeatedly, and the circuit problem of aging obtains essence and solves, thus the security control protective valve also increases more than 20 times service life thereupon, and in use more safe and reliable.
7, Peng Ren taste of food is more delicious and good to eat: this invention utilizes heat accumulation slowly food to be heated, is pressurized to the highest design temperature and pressure after food is heated to uniform temperature, more helps the maintenance of food nutrition constituent; Behind constant temperature and pressure, waste heat that heater stores up uninterruptedly replenishes the heat energy that loses because of heat leakage, and it is constant that temperature and pressure is able under high temperature and high pressure, the change that can not cause food to bring nutritive value and taste too greatly because of the instantaneous variation of temperature and pressure.
Claims (6)
1, a kind of heat-storing constant-pressure electric pressure cooker, mainly be made up of pot cover (1), shell (2), outer pot (3), interior pot (4), heating energy storage dish (5), relief valve (6), the trivial tight mechanism of pot cover (7) and circuit control system parts such as (8), it is characterized in that: A, heating energy storage dish (5) are combined into one for sandwich construction; B, circuit control system (8) are the open close type circuit of plain type control principle; C, outer pot (4) the bottom of a pan are rigid structure.
2, heat-storing constant-pressure electric pressure cooker according to claim 1 is characterized in that: heating energy storage dish (5) is made up of heating layer housing, heating layer, heat accumulation insulating barrier, and resistive heater is assemblied in the heating layer and seals with proprietary material.
3, heat-storing constant-pressure electric pressure cooker according to claim 1 is characterized in that: circuit control system (8) is the open close type circuit of plain type, closure when in a use, beginning to heat, the heating a period of time after automatic disconnection, need not close repeatedly thereafter and with the dead circuit control system.
4, heat-storing constant-pressure electric pressure cooker according to claim 1 is characterized in that: need not rely on inner pot pressure to change extruding outer pot (4) the bottom of a pan strain connecting and disconnecting circuit, outer pot (4) the bottom of a pan is designed to rigid structure.
5, heat-storing constant-pressure electric pressure cooker according to claim 1 is characterized in that: between outer pot and the shell without warmer.
6, heat-storing constant-pressure electric pressure cooker according to claim 1 is characterized in that: by temperature sense controlled pressure autocontrol switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610035008 CN1864607A (en) | 2006-04-17 | 2006-04-17 | Heat-storing constant-pressure electric pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610035008 CN1864607A (en) | 2006-04-17 | 2006-04-17 | Heat-storing constant-pressure electric pressure cooker |
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| Publication Number | Publication Date |
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| CN1864607A true CN1864607A (en) | 2006-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610035008 Pending CN1864607A (en) | 2006-04-17 | 2006-04-17 | Heat-storing constant-pressure electric pressure cooker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103284589A (en) * | 2012-09-13 | 2013-09-11 | 文联强 | Insulation and heat accumulation electric pressure cooker |
| CN113143001A (en) * | 2020-01-07 | 2021-07-23 | 佛山市顺德区美的电热电器制造有限公司 | Pan and cooking equipment |
-
2006
- 2006-04-17 CN CN 200610035008 patent/CN1864607A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103284589A (en) * | 2012-09-13 | 2013-09-11 | 文联强 | Insulation and heat accumulation electric pressure cooker |
| CN113143001A (en) * | 2020-01-07 | 2021-07-23 | 佛山市顺德区美的电热电器制造有限公司 | Pan and cooking equipment |
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