CN201528994U - Electric pressure cooker with a pressure detecting device - Google Patents
Electric pressure cooker with a pressure detecting device Download PDFInfo
- Publication number
- CN201528994U CN201528994U CN2009200269313U CN200920026931U CN201528994U CN 201528994 U CN201528994 U CN 201528994U CN 2009200269313 U CN2009200269313 U CN 2009200269313U CN 200920026931 U CN200920026931 U CN 200920026931U CN 201528994 U CN201528994 U CN 201528994U
- Authority
- CN
- China
- Prior art keywords
- pressure
- steam
- pot
- detecting device
- cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Cookers (AREA)
Abstract
The utility model relates to an electric pressure cooker with a pressure detecting device, comprising an outer cooker body, an inner cooker body, a cover and a seal ring both for sealing the inner cooker body, an electric heating unit arranged at the bottom of the inner cooker body, and a control circuit for controlling the electric heating unit. The cover is provided with openings for placing a steam seal cover and a variable resistor, wherein the variable resistor comprises a slip resisting member and a sliding electrode which slides on the slip resisting member, and is electrically connected with the control circuit. A steam-driven push bar is arranged between the variable resistor and a steam isolating cover, and is provided with an offsetting spring. The steam-driven push bar causes displacement with pressure changes to drive the variable resistor, the sliding electrode and the slip resisting member slide relatively to generate varying resistance signals, and the control circuit outputs heating control signals after analyzing and processing the resistance signals. The electric pressure cooker with the pressure detecting device has the advantages of high precision of pressure detection, low cost and simple debugging.
Description
Technical field
The utility model relates to the electric pressure cooking saucepan technical field, especially a kind of electric pressure cooking saucepan with pressure-detecting device.
Background technology
Commercially available intelligent electric pressure cooker is controlled function program work by MCU now.For make function obtain better effect and electric pressure cooking saucepan safer, people have adopted many controls, have detected the method for pot inner pressure.At present, the electric pressure cooking saucepan pressure measurement of Temperature Control Type generally adopts thermistor temperature sensor to place a pot top to measure kettle temperature, is converted to barometric information then and controls function program by single-chip microcomputer.Usually, the pressure in the electric pressure cooking saucepan is relevant with temperature, pot interior factors such as food nature in the pot, that is to say that the height of kettle temperature is not unique factor that influences pot inner pressure.Determine pot inner pressure iff detecting kettle temperature, error is quite big, can not in time reflect a pot interior true pressure.Thereby make calling program can not in time obtain the accurate pressure data, influence the good realization of function program.
Prior art also has the method and apparatus of open employing variable resistance as detected pressures, sees Chinese patent CN200720055636.1, patent name " pressure-detecting device of electric pressure cooking saucepan ".This technical scheme is mainly utilized the swell increment of pot in the slide rheostat perception, converts interior pot swell increment to a displacement and realizes pressure control.This scheme limited range is bigger, because the electric pressure cooking saucepan of this type is provided with flexible member in the bottom usually, satisfy the requirement that produces the certain displacement variable quantity, between interior pot and pot cover, sealing ring is set, realize the needs (moving envelope formula pressure relief) of safety relief when pressure is excessive, usually when pressure release, the about 4.0-6.0mm of displacement that interior pot produces downwards, the excessive not only pressure release of displacement is dangerous, and can cause than havoc frame for movement, maintenance cost is higher, and the about 2.0-3.5mm of the displacement when operate as normal, the change in resistance that this displacement acts on the generation on the slide rheostat is very little, and slide rheostat is subjected to Temperature Influence easily, and error ratio is bigger, and slide rheostat is arranged on interior pot bottom, be difficult to realize the accurate measurement of pressure, the checkout gear of this kind mode lacks practicality; In addition, because the component content difference and the thickness deviation of interior pot material need in the production each product is debugged, production efficiency is lower.And in use, in case add heat anomaly, heating plate then gross distortion can occur, causes detecting error occurring, still can not realize the accurate measurement of pressure.
The utility model content
For overcoming the deficiencies in the prior art, the utility model provides a kind of pressure detecting accurate, produces debugging simply, the electric pressure cooking saucepan that is suitable for producing in batches.
In order to reach above-mentioned technical purpose, the utility model has adopted following technical proposals:
A kind of electric pressure cooking saucepan with pressure-detecting device, comprise pot in outer pot, interior pot, the sealing pot cover and sealing ring, be arranged in the electric heater unit of pot bottom and the control circuit of control electric heater unit; Perforate is provided with steam seal cover and variable resistance on pot cover; Described variable resistance comprises sliding resistance body and the sliding electrode that slides on sliding resistance body, variable resistance is electrically connected with control circuit; Be provided with the steam-operating push rod between described variable resistance and the steam seal cover, the steam-operating push rod is provided with back-moving spring; Described steam-operating push rod is stressed to change and produces change in displacement promotion variable resistance, makes the relative resistance signal that slides and change with sliding resistance body of sliding electrode; Described control circuit to described resistance signal analyzing and processing after output heating control signal.
Described steam-operating push rod one end is arranged between pot cover and the interior pot, and the other end is connected with sliding electrode; Described sliding resistance body is fixedly mounted on the pot cover.
Perhaps described steam-operating push rod one end is arranged between pot cover and the interior pot, and the other end is connected with sliding resistance body; Described sliding electrode is fixedly mounted on the pot cover.
Described pot cover is provided with electromagnetic release valve, and described control circuit comprises the open/close pressure adjustment of control electromagnetic release valve circuit
Described steam seal cover is to be made by silicon rubber.
Compared with prior art, the utility model is provided with the technical scheme that variable resistance detects the culinary art pressure signal in the pot owing to having adopted on pot cover, have following useful technique effect: 1, variable rheostat is arranged on the pot cover, separate with moving envelope formula pressure relief, be not subjected to the restriction of its change in displacement, the size that can regulate displacement by the elastic force size of regulating back-moving spring to produce bigger resistance variations, is convenient to the accurate detection of pressure signal; 2, temperature is lower on the pot cover, and the signal errors that the variable resistance temperature influence causes reduces, and does not need to be provided with specially temperature compensation means, and the pressure detecting precision is higher; 3, variable resistance is arranged on the pot cover, is not subjected to the influence of inner bag difference in height and heat-generating disc temperature distortion, produce debugging simply, be convenient to produce in batches, and after the heat-generating disc temperature distortion, without any influence, still can realize the accurate measurement of pressure to certainty of measurement; 4 and the electromagnetic release valve that is arranged on the pot cover cooperate, can also realize accurate control and the quick exhaust effect of uncapping in real time of pressure; 5, variable resistance is simple in structure, thereby the low pressure-detecting device cost that makes of cost is lower, saves cost.
Description of drawings
Fig. 1 is the application structure schematic diagram of the utility model embodiment one;
Fig. 2 is the enlarged diagram of the displacement transducer of the utility model embodiment one.
Among the figure:
1, outer pot; 2, interior pot; 3, pot cover; 4, sealing ring; 5, heating plate; 6, control circuit; 7, variable resistance; 71, slide resistance body; 72, sliding electrode; 8, steam seal cover; 9, steam-operating push rod; 10, back-moving spring; 11, electromagnetic release valve; 12, elastic plate.
The specific embodiment
Further specify the specific embodiment of the present utility model below in conjunction with accompanying drawing:
Embodiment one:
A kind of electric pressure cooking saucepan with pressure-detecting device as shown in Figure 1 and Figure 2 comprises outer pot 1, interior pot 2, seals the pot cover 3 and the sealing ring 4 of interior pot 2, the electric heater unit that is arranged on interior pot 2 bottoms and the control circuit 6 of controlling electric heater unit; Electric heater unit in the present embodiment is a heating plate 5.Perforate is provided with steam seal cover 8 and variable resistance 7 on pot cover 3; Variable resistance 7 comprises sliding resistance body 71 and the sliding electrode 72 that slides on sliding resistance body 71, variable resistance 7 is electrically connected with control circuit 6.Sliding resistance body 71 is fixedly mounted on the pot cover 3, and sliding electrode 72 is fixedlyed connected with steam-operating push rod 9.Be provided with steam-operating push rod 9 between variable resistance 7 and the steam seal cover 8, steam-operating push rod 9 is provided with back-moving spring 10; Described steam-operating push rod 9 is stressed to change and produces change in displacement promotion variable resistance 7, makes sliding electrode 72 and the sliding resistance body 71 relative resistance signals that slide and change; Output heating control signal is adjusted the size of cooking pressure by the heating power of control heating plate 5 after 6 pairs of resistance signal analyzing and processing of control circuit.
When the electric pressure cooking saucepan internal pressure raises, upwards produce displacement under the steam pressure effect of steam-operating push rod 9 in interior pot 2, corresponding steam-operating push rod 9 drives hard-wired sliding electrode 72 slip on sliding resistance body 71 on the steam-operating push rod 9, the resistance value of variable resistance 7 is changed and produce electrical signal transfer and be converted into corresponding force value for control circuit 6, and according to the needs of cooking heating plate 5 is controlled by control circuit 6.After control circuit 6 control heating plates 5 stop heating, pressure between interior pot 2 and the pot cover 3 descends, back-moving spring 10 promotes steam-operating push rod 9 and moves down, steam-operating push rod 9 drive sliding electrodes 72 move downward simultaneously, sliding electrode 72 is slided on sliding resistance body 71, and then the resistance value of variable resistance 7 changes and produces electrical signal transfer and is converted into force value for control circuit 6, and according to the needs of cooking heating plate 5 is controlled by control circuit 6, thereby reach real-time detection pot inner pressure, the purpose of control electric pressure cooking saucepan work.
Present embodiment also pot cover 3 is provided with electromagnetic release valve 11, control circuit 6 can by the unlatching or close of control electromagnetic release valve 11 regulate in the pot culinary art pressure or after culinary art finishes, open electromagnetic release valve 11 quick exhausts to reach the purpose of fast quick-opening lid.
The sliding electrode 72 in the present embodiment and the installation site of sliding resistance body 71 are also interchangeable, promptly sliding resistance body 71 and 9 fixed installations of steam-operating push rod, and sliding electrode 72 is fixed on the pot cover, can realize goal of the invention of the present utility model equally.
Steaming sealing shroud 8 in the present embodiment is made by silica gel, also can make with other elastic rubber materials, perhaps uses other sealing means can realize the sealing function of steam in this position.The electric heater unit that is adopted in the present embodiment is a heating plate 5, also can be electromagnetism drum, heating plate, infrared heating device etc.In addition, be provided with elastic plate 12 between heating plate 5 and outer pot 1 bottom,, reach the effect that high pressure is perfectly safe to realize the pressure release of moving envelope formula.
Claims (6)
1. electric pressure cooking saucepan with pressure-detecting device, comprise pot in outer pot, interior pot, the sealing pot cover and sealing ring, be arranged in the electric heater unit of pot bottom and the control circuit of control electric heater unit; It is characterized in that perforate is provided with steam seal cover and variable resistance on pot cover; Described variable resistance comprises sliding resistance body and the sliding electrode that slides on sliding resistance body, variable resistance is electrically connected with control circuit; Be provided with the steam-operating push rod between described variable resistance and the steam seal cover, the steam-operating push rod is provided with back-moving spring; Described steam-operating push rod is stressed to change and produces change in displacement promotion variable resistance, makes the relative resistance signal that slides and change with sliding resistance body of sliding electrode; Described control circuit to described resistance signal analyzing and processing after output heating control signal.
2. a kind of electric pressure cooking saucepan with pressure-detecting device according to claim 1 is characterized in that described steam-operating push rod one end is arranged between pot cover and the interior pot, and the other end is connected with sliding electrode; Described sliding resistance body is fixedly mounted on the pot cover.
3. a kind of electric pressure cooking saucepan with pressure-detecting device according to claim 1 is characterized in that described steam-operating push rod one end is arranged between pot cover and the interior pot, and the other end is connected with sliding resistance body; Described sliding electrode is fixedly mounted on the pot cover.
4. according to claim 1 or 2 or 3 described a kind of electric pressure cooking saucepans with pressure-detecting device, it is characterized in that described pot cover is provided with electromagnetic release valve, described control circuit comprises the open/close pressure adjustment of control electromagnetic release valve circuit.
5. according to claim 1 or 2 or 3 described a kind of electric pressure cooking saucepans, it is characterized in that described steam seal cover is to be made by silicon rubber with pressure-detecting device.
6. according to claim 1 or 2 or 3 described a kind of electric pressure cooking saucepans, it is characterized in that described electric heater unit can be heating plate, heating board, electromagnetism drum or infrared heating device with pressure-detecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200269313U CN201528994U (en) | 2009-06-04 | 2009-06-04 | Electric pressure cooker with a pressure detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200269313U CN201528994U (en) | 2009-06-04 | 2009-06-04 | Electric pressure cooker with a pressure detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201528994U true CN201528994U (en) | 2010-07-21 |
Family
ID=42524407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200269313U Expired - Lifetime CN201528994U (en) | 2009-06-04 | 2009-06-04 | Electric pressure cooker with a pressure detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201528994U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008227A (en) * | 2010-09-15 | 2011-04-13 | 乔林友 | Pressure sensor for heating container |
| CN102334907A (en) * | 2011-08-08 | 2012-02-01 | 乔林友 | Signal collection control device of contact type electric pressure cooker |
| CN102519659A (en) * | 2011-12-02 | 2012-06-27 | 美的集团有限公司 | Pressure detection device and electric pressure cooker adopting same |
| CN102987908A (en) * | 2012-12-28 | 2013-03-27 | 广东洛贝电子科技有限公司 | Electric pressure cooker capable of accurately controlling pressure, and pressure control method and pressure control system thereof |
| CN104510331A (en) * | 2013-09-27 | 2015-04-15 | 美的集团股份有限公司 | Pressure cooker |
| CN107941406A (en) * | 2017-11-07 | 2018-04-20 | 歌尔科技有限公司 | A kind of pressure detection means and smart machine |
| CN108344536A (en) * | 2017-01-24 | 2018-07-31 | 浙江苏泊尔家电制造有限公司 | Pressure sensor and cooking apparatus for cooking apparatus |
| CN110547674A (en) * | 2019-09-10 | 2019-12-10 | 惠州市铂蓝德科技有限公司 | Sensor and electric pressure cooker |
| CN112161201A (en) * | 2020-09-21 | 2021-01-01 | 湖南省大地泵业有限公司 | Sewage treatment equipment capable of preventing recontamination |
-
2009
- 2009-06-04 CN CN2009200269313U patent/CN201528994U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008227A (en) * | 2010-09-15 | 2011-04-13 | 乔林友 | Pressure sensor for heating container |
| CN102334907A (en) * | 2011-08-08 | 2012-02-01 | 乔林友 | Signal collection control device of contact type electric pressure cooker |
| CN102519659A (en) * | 2011-12-02 | 2012-06-27 | 美的集团有限公司 | Pressure detection device and electric pressure cooker adopting same |
| CN102987908A (en) * | 2012-12-28 | 2013-03-27 | 广东洛贝电子科技有限公司 | Electric pressure cooker capable of accurately controlling pressure, and pressure control method and pressure control system thereof |
| CN102987908B (en) * | 2012-12-28 | 2015-06-10 | 广东洛贝电子科技有限公司 | Electric pressure cooker capable of accurately controlling pressure, and pressure control method and pressure control system thereof |
| CN104510331A (en) * | 2013-09-27 | 2015-04-15 | 美的集团股份有限公司 | Pressure cooker |
| CN108344536A (en) * | 2017-01-24 | 2018-07-31 | 浙江苏泊尔家电制造有限公司 | Pressure sensor and cooking apparatus for cooking apparatus |
| CN107941406A (en) * | 2017-11-07 | 2018-04-20 | 歌尔科技有限公司 | A kind of pressure detection means and smart machine |
| CN107941406B (en) * | 2017-11-07 | 2024-04-02 | 歌尔科技有限公司 | Pressure intensity detection device and intelligent device |
| CN110547674A (en) * | 2019-09-10 | 2019-12-10 | 惠州市铂蓝德科技有限公司 | Sensor and electric pressure cooker |
| CN112161201A (en) * | 2020-09-21 | 2021-01-01 | 湖南省大地泵业有限公司 | Sewage treatment equipment capable of preventing recontamination |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201528994U (en) | Electric pressure cooker with a pressure detecting device | |
| CN100385219C (en) | Pressure detection method and apparatus for electric pressure cooker | |
| CN202035997U (en) | Pressure detection device of electric pressure cooker | |
| CN100469289C (en) | Electric pressure cooker | |
| CN106388625A (en) | Convection conduction type electrical heating device for electric cooker | |
| CN102519659A (en) | Pressure detection device and electric pressure cooker adopting same | |
| CN101112293A (en) | Modified electric pressure cooker | |
| CN201578035U (en) | Electric pressure cooker pressure detecting device capable of detecting pressure directly and accurately | |
| CN202033147U (en) | Pressure detection module of electric pressure cooker based on MEMS (Micro Electro Mechanical System) technology | |
| CN201504991U (en) | Pressure detection device and electric pressure cooker with the same | |
| CN202386484U (en) | Pot cover with pressure detection device | |
| CN202515396U (en) | Pressure detection device and electric pressure cooker adopting same | |
| CN201066317Y (en) | Pressure detection device for electric pressure pan | |
| CN101690642A (en) | Electric pressure cooking utensil | |
| CN201715572U (en) | Gas cooker with weighing function | |
| CN1718139A (en) | Electric pressure cooking utensil | |
| CN202403858U (en) | Pressure detection device of electric pressure cooker | |
| CN102519654A (en) | Pressure detection device and electric pressure cooker adopting same | |
| CN201295134Y (en) | Pressure controlled electric pressure cooker | |
| CN201958603U (en) | Electric pressure cooker | |
| CN204115023U (en) | The electromagnetic oven structure of accurate temperature measurement can be realized | |
| CN201715568U (en) | Weighing gas stove capable of transferring weight by utilizing lever | |
| CN201533757U (en) | Electric pressure cooking appliance | |
| CN202393545U (en) | Pressure detection device and electric pressure cooker adopting same | |
| CN207569935U (en) | Electromagnetic cooking appliance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100721 |
|
| CX01 | Expiry of patent term |