CN105725768A - Alternating current/direct current dual-purpose anti-burnt pressure cooker - Google Patents
Alternating current/direct current dual-purpose anti-burnt pressure cooker Download PDFInfo
- Publication number
- CN105725768A CN105725768A CN201610220099.5A CN201610220099A CN105725768A CN 105725768 A CN105725768 A CN 105725768A CN 201610220099 A CN201610220099 A CN 201610220099A CN 105725768 A CN105725768 A CN 105725768A
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- China
- Prior art keywords
- pressure cooker
- sensor
- direct current
- alternating current
- heat
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- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/09—Safety devices
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
The invention discloses an alternating current/direct current dual-purpose anti-burnt pressure cooker. A pressure cooker body, a heating disc, a sensor and a direct current operating relay are placed in sequence from top to bottom in a heat insulating shell; an anti-explosion safety valve is mounted on a pressure cooker cover; a rotary exhaust valve is arranged at the top of the pressure cooker cover; a sealed connecting groove which is matched with the pressure cooker body is formed in the pressure cooker cover; a small hole is formed in the centre of the heating disc; the sensor is placed on the small hole; a filter rectifier is additionally arranged between the sensor and the direct current operating relay, so that the problem about alternating current/direct current dual-purpose of the pressure cooker is solved very conveniently; two wiring posts of the heating disc are electrically connected to two pairs of contacts of the direct current operating relay, and are directly connected with an input circuit. The pressure cooker can be energy-saving and environment-friendly by utilizing photovoltaic direct current without the fear of power failure caused by natural disasters; alternating current can be used directly without converting; a power failure operation is controlled by using the sensor without arcing, so that food in the pressure cooker can be prevented from being burnt. The alternating current/direct current dual-purpose anti-burnt pressure cooker is suitable for a family unit, and is more suitable for a family provided with a direct-use photovoltaic power generation device.
Description
Technical field
The present invention relates to a kind of cooker, especially AC/DC prevents the pressure cooker that burns.
Background technology
nullAt present,Known electric pressure cooker is to make thermal source with 220V ac electric arc furnace,People does not keep an eye on,Easily cause food in pot to burn,For energy-conserving and environment-protective,Units concerned now progressively promote my patent,Family's double-track system power supply need not、Few use、Straight system (ZL201220245052.1),Now it is called for short " directly using formula photovoltaic generation ",DC voltage 220V,Powerful household electrical appliance,When using powered by direct current,Arcing is wanted when switch is opened and breaks,Switch contact is caused to blow or adhesion,I solves arcing problem with the DC operation relay of 220V,Effect is fine,And applied for patent,(ZL201520651804.8),But when directly by formula photovoltaic generation electric power deficiency,Need to use AC-powered,When high direct voltage pot attaching plug is inserted into 220V alternating current,When sensor is connected,Find that DC relay is not enough because of magnetic,Under the contact of relay is not inhaled,If DC operation relay being used instead 220V AC relay do experiment,Find that result of use is also fine in alternating current,Also protect the contact of sensor,But test in 220V unidirectional current and can work,Less than five minutes,AC relay coil burns out,Develop and to solve pressure cooker AC/DC how easily,Very urgent.
Summary of the invention
In order to solve the DC operation relay of 220V, when 220V alternating current uses, because of the problem that magnetic deficiency can not work and 220V AC relay to burn out in 220V unidirectional current, the present invention provides one to not be used on pressure cooker any manual switch, the power line of pressure cooker is directly inserted in alternating current and galvanic supply socket, it is achieved AC/DC.
The technical solution adopted for the present invention to solve the technical problems is: in the body of heater of insulation, pressure cooker, heat-generating disc, sensor, DC relay are sequentially placed from top to bottom, between sensor and DC operation relay, add a filter-rectifier, solve AC/DC problem.For the noise suppressing DC operation relay to produce when alternating current uses, add line filter circuit.On high-pressure pot cover, equipped with blastproof relief valve, caping is rotating exhaust valve, pot cover is tightly connected groove equipped with supporting with bowl, carries out seal operation with the handle on pot cover.nullAn aperture is opened in heat-generating disc central authorities,Put sensor suite,(sensor suite be the Alnico sensor of electric cooker adds that of lever switch a kind of),Two wires of sensor,A piece positive pole connecing filter-rectifier output,Another root connects one end of DC operation relay coil,The other end of DC operation relay coil,Connect the negative pole of filter-rectifier,Two electrodes of pressure cooker socket,Except supply filter rectifier,Also electrically connect the AB of DC operation relay、The half AD contact of DE two docking point,Second half BE contact electrical connection heat-generating disc,The break-make of DC operation relay coil is controlled with sensor,Thus controlling the break-make of heat-generating disc,Because of DC operation relay,Quick action,Contact length is big,It is turned on and off when being again positive and negative electrodes in same,Not arcing,About the anti-same electric cooker of principle burnt.Its operation principle process is as follows: when an alternating current is used, the coil of the filtered commutator output electrical connection sensor of alternating current and DC operation relay, thus controlling the contact of DC operation relay, it is direct electric connection of power supply inlet wire that DC operation makes the contact of relay, reducing filter-rectifier burden, alternating current is directly to jug with heating disk, when dryouting, sensor disconnects, it is therefore prevented that food burns.When using powered by direct current, unidirectional current is either directly through filter-rectifier, and loss is only small, other principles and the same alternating current of process.Here illustrating a bit, after filtered rectification, must not add filter capacitor, otherwise when alternating current uses, DC voltage is not 220V, rises to immediately and lies prostrate 300 more, quickly to burn out the coil of DC operation relay.
The invention has the beneficial effects as follows, this pressure cooker that the method adopting filter-rectifier not be used on pressure cooker any operation, it is achieved AC/DC, not arcing, controls power operation with sensor, it is therefore prevented that burn food in pressure cooker.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 alternating current-direct current high pressure cooker structure sectional view.
Fig. 2 AC and DC dual-purpose high voltage pot circuit theory diagrams.
In figure 1, lagging casing 2, high pressure bowl 3, stove foot 4, sensor 5, heat-generating disc 6, DC operation relay 7, supply socket 8, display lamp 9, stove ear 10, pressure cooker handle 11, pot-cover handle 12, pot cover 13, explosion relief valve 14, rotating exhaust valve 15, it is tightly connected groove 16, filter-rectifier.
Detailed description of the invention
In FIG, lagging casing (1) has stove ear (9) supply socket (7) the stove foot (3) being easy to taking and placing, lagging casing (1) inner bottom part is DC operation relay (6) heat-generating disc (5), the central authorities of heat-generating disc (5) are sensor (4), and display lamp (8) is connected in parallel on the two ends of heat-generating disc (5).The above of heat-generating disc (5) is that high pressure bowl (2) is equipped with pressure cooker handle (10), having explosion relief valve (13), rotating exhaust valve (14) pot-cover handle (11) on pot cover (12), high pressure bowl (2) and pot cover (12) junction are tightly connected groove (15).Filter rectifier (16) electric connection of power supply input circuit, output is connected on sensor (4) and the coil of DC operation relay (6).
In fig. 2, C1, C2, C3, LF form line filter circuit, positive pole after D1, D2, D3, D4 bridge rectifier connects sensor (4), connects the coil of DC operation relay (6), returns the negative pole after rectification, when sensor (4) is connected, DC operation relay (6) coil electricity, under contact is inhaled, contact A and BD and E connects, alternating current 220V or direct current 220V are added on heat-generating disc (5), and display lamp (8) is lighted;If sensor (4) is disconnected, DC operation relay (6) coil blackout, contact discharges, and contact A and BD and E disconnects, and heat-generating disc (5) does not work, and display lamp (8) goes out.
Claims (2)
1. the pressure cooker that an AC/DC prevents burning, body of heater has supply socket, stove ear, stove foot, display lamp, it it is heat-generating disc in body of heater, being pressure cooker on heat-generating disc, it is characterized in that: power of alterating and direct current input circuit, C1, C2, C3, LF form line filter circuit, through D1, D2, D3, D4 bridge rectifier, output is connected on sensor and the coil of DC operation relay, and heat-generating disc passes through DC operation relay, electrical interconnection input circuit.
2. the AC/DC piece described in Ju claim 1 prevents the pressure cooker that burns, it is characterized in that: heat-generating disc central authorities open an aperture, put sensor suite, (sensor suite be the Alnico sensor of electric cooker adds that of lever switch a kind of), two wires of sensor, a positive pole connecing filter-rectifier output, one end of another termination DC operation relay coil, the other end of DC operation relay coil, connects the negative pole of filter-rectifier.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610220099.5A CN105725768A (en) | 2016-04-01 | 2016-04-01 | Alternating current/direct current dual-purpose anti-burnt pressure cooker |
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CN201610220099.5A CN105725768A (en) | 2016-04-01 | 2016-04-01 | Alternating current/direct current dual-purpose anti-burnt pressure cooker |
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CN105725768A true CN105725768A (en) | 2016-07-06 |
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CN201610220099.5A Pending CN105725768A (en) | 2016-04-01 | 2016-04-01 | Alternating current/direct current dual-purpose anti-burnt pressure cooker |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000018896U (en) * | 1999-03-31 | 2000-10-25 | 유병진 | Apparatus for keeping warm and cook using AC/DC |
CN102566624A (en) * | 2012-02-07 | 2012-07-11 | 宁波市镇海华泰电器厂 | Noise-type water temperature control device |
CN204718272U (en) * | 2015-04-22 | 2015-10-21 | 丁樟富 | Alternating current and photovoltaic DC dual-purpose refrigerator and the same device of water heater |
CN204889612U (en) * | 2015-08-21 | 2015-12-23 | 丁樟富 | Photovoltaic dc supply prevents empyreumatic pressure cooker |
CN105183035A (en) * | 2015-08-10 | 2015-12-23 | 芜湖瑞泰精密机械有限公司 | Industrial temperature acquisition control circuit |
CN204970808U (en) * | 2015-08-07 | 2016-01-20 | 丁樟富 | Multi -purpose control by temperature change electric heat pot of photovoltaic direct current |
-
2016
- 2016-04-01 CN CN201610220099.5A patent/CN105725768A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000018896U (en) * | 1999-03-31 | 2000-10-25 | 유병진 | Apparatus for keeping warm and cook using AC/DC |
CN102566624A (en) * | 2012-02-07 | 2012-07-11 | 宁波市镇海华泰电器厂 | Noise-type water temperature control device |
CN204718272U (en) * | 2015-04-22 | 2015-10-21 | 丁樟富 | Alternating current and photovoltaic DC dual-purpose refrigerator and the same device of water heater |
CN204970808U (en) * | 2015-08-07 | 2016-01-20 | 丁樟富 | Multi -purpose control by temperature change electric heat pot of photovoltaic direct current |
CN105183035A (en) * | 2015-08-10 | 2015-12-23 | 芜湖瑞泰精密机械有限公司 | Industrial temperature acquisition control circuit |
CN204889612U (en) * | 2015-08-21 | 2015-12-23 | 丁樟富 | Photovoltaic dc supply prevents empyreumatic pressure cooker |
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Application publication date: 20160706 |