CN201365819Y - Electric pressure cooker with numerical pressure detecting device - Google Patents
Electric pressure cooker with numerical pressure detecting device Download PDFInfo
- Publication number
- CN201365819Y CN201365819Y CN 200820214400 CN200820214400U CN201365819Y CN 201365819 Y CN201365819 Y CN 201365819Y CN 200820214400 CN200820214400 CN 200820214400 CN 200820214400 U CN200820214400 U CN 200820214400U CN 201365819 Y CN201365819 Y CN 201365819Y
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- pressure
- detecting device
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- cooking saucepan
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Abstract
The utility model relates to a pressure vessel, in particular to a domestic high-pressure electrical apparatus which has the advantages of low cost and high pressure control accuracy and can achieve the automatic control of heating and switching on and off a power supply so as to achieve the automatic control of the pressure in the electric pressure cooker. The electric pressure cooker with a numerical pressure detecting device comprises an outside shell body, a liner pot body, an electric heating body and a pot cover which are assembled and connected according to the known technology, and is characterized by further comprising at least one piezoresistive sensor capable of sensing the internal pressure of the liner pot body; the piezoresistive sensor is electrically connected with a central processing unit, and the central processing unit is used for processing the singles transmitted by the piezoresistive sensor and comprises a controller for supplying power to the electric heating body; and the central processing unit instructs the controller to supply or cut off the power for the electric heating body according to the change in the singles transmitted by the piezoresistive sensor. The electric pressure cooker has the advantages that the dynamic detection of the pressure is easy, the detecting device is convenient for installing, the pressure control accuracy is high, the sensitivity of pressure change is high, and the like.
Description
Technical field
The utility model relates to a kind of pressure vessel, and particularly a kind of have pressure controlled family expenses High-Voltage Electrical Appliances.
Background technology
Along with people's rhythm of life is constantly accelerated, more and more feel waste to spending time on breakfast, lunch and dinner, so all seeking the method and apparatus of fast cooking always.For the many businessmans of this demand that satisfy people have also introduced high pressure culinary art theory in daily electrical home appliance, the high pressure household products also is the beautiful jade appearance at present.Because high-tension apparatus has high-risk characteristic, so how a kind of culinary art household electrical appliances safely and fast just can be provided is targets of pursuing in the industry always, people have the mode that adopts swell increment perceptive mode, displacement perceptive mode and the perception of weighing to reach the purpose of high pressure perception in order to solve safety problem now.
" a kind of pressure detection method of electric pressure cooking saucepan and checkout gear " disclosed as Chinese patent CN200510100475.9, its objective is that providing a kind of can accurately detect the electric pressure cooking saucepan of controlling the electric pressure cooking saucepan internal pressure in continuity ground, it is placed on pot periphery within the pressure cooker with strain gauge, and utilize a transmission arm, the swell increment of pot in the perception.When interior pot expanded, transmission arm was converted to a displacement with interior pot swell increment, made the elastic matrix distortion of strain gauge; The elastic matrix of distortion also produces the electrical characteristics of responsive foil thereupon changing the controlled signal of telecommunication flows to central controller, by the central controller computing, and output control signal and demonstration signal.Pressure-detecting device of the present utility model comprises strain gauge, transmission arm, central controller etc.It is peripheral that strain gauge is placed within the pressure cooker pot, and by the fixing strain gauge of suitable method.The swell increment perceptive mode is owing to exist the trickle problem that has the susceptibility and the degree of accuracy of material swell increment
" pressure-detecting device of electric pressure cooking saucepan " disclosed as Chinese patent CN200720049043.4, its objective is the pressure-detecting device that a kind of electric pressure cooking saucepan is provided, comprise central controller, between the heating plate of electric pressure cooking saucepan and shell displacement transducer is set, described displacement transducer is electrically connected with described central controller.Described displacement transducer can be inductive displacement transducer, capacitive displacement transducer, optical displacement sensor, ultrasonic type displacement transducer, Hall magnetosensitive Linear displacement transducer.Utilize the operating characteristic of displacement transducer non-cpntact measurement change in displacement to detect interior pot or the displacement of heating plate when pot inner pressure changes, thereby reach the purpose that continuous detecting electric pressure cooking saucepan pressure changes.The displacement perceptive mode then exists sensitivity and and the problem of reliability deficiency.
" electric pressure cooking saucepan " disclosed as Chinese patent CN200610036612.1, it provides and be provided with LOAD CELLS below heater, be provided with the horizontal supporting plate of rigidity below the LOAD CELLS, rigid beam, the vertical connecting plate of rigidity, the horizontal supporting plate three of rigidity is fixedly connected to become a rigid unitary framework, the horizontal supporting plate of rigid beam and rigidity is with pot cover, sealing ring, inner pan body, heater and LOAD CELLS are clamped together from above-below direction, the output of LOAD CELLS is connected to circuit control device, and circuit control device is according to the pressure detecting of the LOAD CELLS heating situation of control heater as a result.The utility model electric pressure cooking saucepan can be according to culinary art pressure control heater heating situation, and need not rely on flexible member to keep the normal decrement of upholding, also can be further with this pure atmospheric pressure value as the heating process regulation and control object, make the heating process goal of regulation and control more directly, regulating effect is more accurate.The mode of perception of weighing also is the numerous integrity problems that exist of complex structure, parts.
The utility model content
The utlity model has the electric pressure cooking saucepan of digital pressure-detecting device, technical problem to be solved is that the sensitivity of traditional side detection mode is low, deficiencies such as inaccuracy or complex structure reliability are low, a kind of cost is low, pressure controling precision is high and provide, can realize controlling automatically the heating power supply break-make, thereby realize the interior pressure of control pot automatically.
The purpose of this utility model can reach by following measure:
This electric pressure cooking saucepan with digital pressure-detecting device, it comprises shell body, inner bag pot body, electric heating body and pot cover, its assembling and annexation are known techniques, its special character is, also comprise the piezoresistive transducer that at least one can perception inner bag pot nside pressure, described piezoresistive transducer is electrically connected with central processing unit, central processing unit is used to handle the signal that piezoresistive transducer transmits, described central processing unit also comprises the controller to the electric heating body power supply, and central processing unit changes instruction control unit to electric heating body power supply or outage according to the signal of piezoresistive transducer.
Described piezoresistive transducer places within the described pot cover and its induction part communicates with the inner bag pot body cavity.
Described piezoresistive transducer places the pot cover inner surface, directly stretches into the inner bag pot body cavity after covering.
Also be provided with a heat-insulation layer between described inner bag pot body and the shell body.
Be provided with sealing ring between the place of covering of described pot cover and inner bag pot body.
Described central processing unit also connects data display equipment, and it is used to show the supplemental characteristic of electric pressure cooking saucepan.
The utlity model has following advantage:
Electric pressure cooking saucepan provided by the utility model is owing to adopt piezoresistive transducer to detect inner bag pot nside pressure, thus have following some a bit:
1. because piezoresistive transducer has the frequency response height, so the kinetic measurement of pot inner pressure is comparatively smooth and easy;
2. the piezoresistive transducer volume is little in addition, is convenient to install and do not influence the structure of existing parts;
3. the pressure controling precision height can reach 0.1～0.01%;
What 4. pressure changed is sensitive high, exceeds doubly a lot than metal strain meter;
5. the pressure inductor that adopts has high integration, no-movable part, and the reliability height, easy for installation.
Description of drawings
Fig. 1 is the electric pressure cooker structure schematic diagram that the utlity model has digital pressure-detecting device.
Fig. 2 is the structural representation of piezoresistive pressure sensor described in the utility model.
The specific embodiment
In conjunction with the accompanying drawings the utility model is further described.
Consult Fig. 1, this practical electric pressure cooking saucepan that newly has digital pressure-detecting device, it comprises shell body 1, inner bag pot body 2, electric heating body 3 and pot cover 4, its assembling and annexation are as shown in the figure, wherein also comprise one can perception inner bag pot nside pressure piezoresistive transducer 5, described piezoresistive transducer 5 is electrically connected with the central processing unit (not shown), central processing unit is used to handle the signal that piezoresistive transducer transmits, described central processing unit also comprises the controller to the electric heating body power supply, and central processing unit changes instruction control unit to electric heating body power supply or outage according to the signal of piezoresistive transducer.Connection and operation principle for parts 1 to 5 are knowledge, so do not give unnecessary details at this.
As shown in Figure 1, the utlity model has that piezoresistive transducer places pot cover 4 inner surfaces in the electric pressure cooking saucepan of digital pressure-detecting device, directly stretch into inner bag pot body cavity 21 after covering, piezoresistive transducer also can place within the pot cover 4 and this hole that supplies sensor sensing portion to communicate with the inner bag pot body cavity of inner surface formation alternatively.
As shown in Figure 1, the utlity model has the electric pressure cooking saucepan of digital pressure-detecting device, also be provided with a heat-insulation layer 6 between its inner bag pot body and the shell body.
As shown in Figure 1, the utlity model has the electric pressure cooking saucepan of digital pressure-detecting device, be provided with sealing ring 7 between the place of covering of its pot cover and inner bag pot body.
The utlity model has the electric pressure cooking saucepan of digital pressure-detecting device, its central processing unit also connects the data display equipment (not shown), it is used to show the supplemental characteristic of electric pressure cooking saucepan, and display can show the information such as operational factor of pot inner pressure and calendar scheduling electric pressure cooking saucepan in real time.
In conjunction with Fig. 2 the operation principle of piezoresistive transducer is described, piezoresistive pressure sensor adopts integrated technique that resistor stripe is integrated on the monocrystalline silicon diaphragm, make silicon pressure drag chip 8, and the peripheral fixed sealing of this chip is loaded within the shell 9, extraction electrode lead-in wire 10 (Fig. 2).Piezoresistive pressure sensor is called solid state pressure sensor again, and it is different from bended strain ga(u)ge need experience external force indirectly by elastic sensing element, but directly by the silicon diaphragm impression by measuring pressure.The one side of silicon diaphragm is and the high pressure chest 11 of tested pressure communication among Fig. 2, and another side is the low-pressure cavity 12 that is communicated with atmosphere.Silicon diaphragm generally is designed to the circle of periphery fixed, and diameter is about 20～60 with the thickness ratio.At 4 P impurity resistance bars of circular silicon diaphragm (N type) localization diffusion, and be connected into full-bridge, wherein two are positioned at the compression district, and two are in the tension district in addition, with respect to diaphragm center symmetry.
Above disclosed only is preferred embodiments of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (6)
1, a kind of electric pressure cooking saucepan with digital pressure-detecting device, it comprises shell body, inner bag pot body, electric heating body and pot cover, its assembling and annexation are known technology, it is characterized in that, also comprise the piezoresistive transducer that at least one can perception inner bag pot nside pressure, described piezoresistive transducer is electrically connected with central processing unit, central processing unit is used to handle the signal that piezoresistive transducer transmits, described central processing unit also comprises the controller to the electric heating body power supply, and central processing unit changes instruction control unit to electric heating body power supply or outage according to the signal of piezoresistive transducer.
2, the electric pressure cooking saucepan with digital pressure-detecting device according to claim 1 is characterized in that: described piezoresistive transducer places within the described pot cover and its induction part communicates with the inner bag pot body cavity.
3, the electric pressure cooking saucepan with digital pressure-detecting device according to claim 1, it is characterized in that: described piezoresistive transducer places the pot cover inner surface, directly stretches into the inner bag pot body cavity after covering.
4, the electric pressure cooking saucepan with digital pressure-detecting device according to claim 1 is characterized in that: also be provided with a heat-insulation layer between described inner bag pot body and the shell body.
5, the electric pressure cooking saucepan with digital pressure-detecting device according to claim 1 is characterized in that: be provided with sealing ring between the place of covering of described pot cover and inner bag pot body.
6, the electric pressure cooking saucepan with digital pressure-detecting device according to claim 1, it is characterized in that: described central processing unit also connects data display equipment, and it is used to show the supplemental characteristic of electric pressure cooking saucepan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820214400 CN201365819Y (en) | 2008-12-12 | 2008-12-12 | Electric pressure cooker with numerical pressure detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820214400 CN201365819Y (en) | 2008-12-12 | 2008-12-12 | Electric pressure cooker with numerical pressure detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201365819Y true CN201365819Y (en) | 2009-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820214400 Expired - Lifetime CN201365819Y (en) | 2008-12-12 | 2008-12-12 | Electric pressure cooker with numerical pressure detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201365819Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103622545A (en) * | 2013-12-13 | 2014-03-12 | 广西大学 | Mirror reflection intelligent electric pressure cooker |
-
2008
- 2008-12-12 CN CN 200820214400 patent/CN201365819Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103622545A (en) * | 2013-12-13 | 2014-03-12 | 广西大学 | Mirror reflection intelligent electric pressure cooker |
| CN103622545B (en) * | 2013-12-13 | 2015-10-21 | 广西大学 | Mirror reflection intelligent electric pressure cooker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG ASD LIVING ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: DONGGUAN BUBUGAO ELECTRICAL APPLIANCES CO., LTD. Effective date: 20110905 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 523860 DONGGUAN, GUANGDONG PROVINCE TO: 314112 JIAXING, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110905 Address after: 314112, Qian Tang Road, Huimin street, Jiashan County, Zhejiang Province, 18 Patentee after: Zhejiang Taizhou Aishida Electrical Equipment Co., Ltd. Address before: 523860 Guangdong Province, Dongguan city Changan town usha BBK Avenue P.O. Box 23 Patentee before: Dongguan Bubugao Electrical appliances Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091223 |
|
| CX01 | Expiry of patent term |