CN201022619Y - Pressure cooker - Google Patents
Pressure cooker Download PDFInfo
- Publication number
- CN201022619Y CN201022619Y CNU2007200491992U CN200720049199U CN201022619Y CN 201022619 Y CN201022619 Y CN 201022619Y CN U2007200491992 U CNU2007200491992 U CN U2007200491992U CN 200720049199 U CN200720049199 U CN 200720049199U CN 201022619 Y CN201022619 Y CN 201022619Y
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- CN
- China
- Prior art keywords
- pot
- resistance
- pressure
- piezo
- relief valve
- 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 - Fee Related
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Abstract
The utility model discloses an autoclave, including a pot lid, a pot lid tightly locking mechanism, a middle ring, a shell, a middle pot with a wavy bottom, an inner pot, a heating disk and a control circuit, the pot lid is provided with a pressure relief valve therein, the heating disk is electrically connected with a varistor, the resistance of the varistor and the pot pressure are provided with the relationship of increasing function, the valve core of the pressure relief valve contacts and presses the varistor, and controls the resistance change of the varistor. The utility model is simple in structure, the pot lid and the pot body are easy to be separated to wash, simple electronic parts can be used to replace the complex mechanical parts, which reduces the damage rate of the parts, and is beneficial to decrease the autoclave working risk in abnormal status, and improves the using safety, the wavy bottom plate of the middle pot is beneficial to increase the pot bottom elasticity, and improves the recovery ability, and decreases the rigid deformation, and makes the autoclave more lasting and durable.
Description
Technical field
The utility model relates to a kind of electric pressure cooking saucepan.
Background technology
Electric pressure cooking saucepan enters into huge numbers of families as the daily basic apparatus of cooking of a kind of people now, in order to ensure the safety of pressure cooker use, electric pressure cooking saucepan on the market is provided with various pressure control devices, pot inner pressure is controlled at prevents in the safe range that explosion accident from taking place.The method that present stage generally uses is that pressure-relief valve is installed on pot cover, and the spool of pressure-relief valve is provided with discharge channel, or the switch that is electrically connected with heat-generating disc is housed above spool, even two kinds of methods are mixed use.
As People's Republic of China's utility model patent 01256193.2, disclosed pressure controller of electric pressure cooker, comprise annular seal space, the electric heater formed by interior pot, pressure cooker cover, sealing ring, pressure limiting valve, it is characterized in that: a cylinder that is communicated with annular seal space is set, piston is housed in the cylinder, the upper cover of piston rod at its rear portion has spring, the pot body is provided with a switch that controlled by the moving piston bar, this switch series is associated in the electric heater power circuit, and annular seal space is provided with Anti-stop cover in the exit that it communicates with cylinder.It promotes piston rod by pot inner pressure, and disconnected make and break is closed, and the work of control heater circuit remains in the safe range pot inner pressure.Yet this mechanical switch is because manufacturing precision is low, and the slit is big, and tiny food or dirt infiltrate the slit easily, cause the switch loose contact.
The utility model content
In order to overcome above-mentioned shortcoming, the utility model provides a kind of simple in structure, safe and reliable electric pressure cooking saucepan.
Goal of the invention of the present utility model is achieved through the following technical solutions: a kind of pressure cooker, comprise pot cover, pot cover retaining mechanism, middle ring, shell, middle pot, interior pot, heat-generating disc and control circuit, be provided with pressure-relief valve in the pot cover, it is characterized in that: described heat-generating disc is electrically connected with a piezo-resistance, the resistance of piezo-resistance is pressed into the increasing function relation with pot, and the spool of pressure-relief valve presses piezo-resistance and controls its change in resistance.
Described piezo-resistance is located in the pot cover, be positioned at the pressure-relief valve spool directly over, directly press with spool.
In the ring, spool pressed indirectly by lever and piezo-resistance during described piezo-resistance was located at.
The bottom of pot is wavy in described.
The utility model is simple in structure, pot cover separates cleaning easily with the pot body, utilize simple electronic unit to replace complicated mechanical component, reduce the chance of parts damages, helped reducing the risk of pressure cooker abnormal condition work, improved safety in utilization, the wavy base plate of middle pot helps strengthening the bottom of a pan elasticity, improve restorability, reduce rigidity deformation, make more durable of pressure cooker.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1.
The specific embodiment
The utility model pressure cooker, comprise that pot cover 1, pot cover retaining mechanism, middle ring 2, shell 3, bottom are wavy middle pot 4, interior pot 5, heat-generating disc 6 and control circuit, be provided with pressure-relief valve 7 in the pot cover 1, as shown in Figure 1, heat-generating disc 6 is electrically connected with quick resistance 8 in pressing pot cover 1, and the resistance of piezo-resistance 8 is pressed into the increasing function relation with pot, when pot is pressed increase, the resistance of piezo-resistance 8 also increases thereupon, and the spool 71 of pressure-relief valve 7 presses piezo-resistance 8 and controls its change in resistance.Piezo-resistance 8 be positioned at pressure-relief valve 7 spools 71 directly over, directly press with spool 71.
Pot cover 1 screws when putting in place, heat-generating disc 6 energising heating, the generation steam that is heated of the water in the interior pot 5, promote the spool 71 of pressure-relief valve 7, when the air pressure of interior pot 5 reached setting value, spool 71 pressed piezo-resistance 8, disconnect the attemperating unit in the pot, heat-generating disc 6 opens circuit, and stops heating; Along with the pot internal gas pressure reduces, the pressure that spool 71 presses piezo-resistance 8 reduces, and the attemperating unit in the pot forms the loop again, and heat-generating disc 6 begins heating again.So circulation is till the food of being cooked in pot boils.
In addition, in the ring 2, spool 71 pressed indirectly by lever and piezo-resistance 8 during piezo-resistance 8 of the present utility model also can be located at.
Claims (4)
1. pressure cooker, comprise pot cover, pot cover retaining mechanism, middle ring, shell, middle pot, interior pot, heat-generating disc and control circuit, be provided with pressure-relief valve in the pot cover, it is characterized in that: described heat-generating disc is electrically connected with a piezo-resistance, the resistance of piezo-resistance is pressed into the increasing function relation with pot, and the spool of pressure-relief valve presses piezo-resistance and controls its change in resistance.
2. pressure cooker according to claim 1 is characterized in that: described piezo-resistance is located in the pot cover, be positioned at the pressure-relief valve spool directly over, directly press with spool.
3. pressure cooker according to claim 1 is characterized in that: in the ring, spool pressed indirectly by lever and piezo-resistance during described piezo-resistance was located at.
4. pressure cooker according to claim 1 is characterized in that: the bottom of pot is wavy in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200491992U CN201022619Y (en) | 2007-03-13 | 2007-03-13 | Pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200491992U CN201022619Y (en) | 2007-03-13 | 2007-03-13 | Pressure cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201022619Y true CN201022619Y (en) | 2008-02-20 |
Family
ID=39096475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200491992U Expired - Fee Related CN201022619Y (en) | 2007-03-13 | 2007-03-13 | Pressure cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201022619Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2007
- 2007-03-13 CN CNU2007200491992U patent/CN201022619Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 |