CN201042390Y - Electric cooker control circuit - Google Patents
Electric cooker control circuit Download PDFInfo
- Publication number
- CN201042390Y CN201042390Y CNU2007200521771U CN200720052177U CN201042390Y CN 201042390 Y CN201042390 Y CN 201042390Y CN U2007200521771 U CNU2007200521771 U CN U2007200521771U CN 200720052177 U CN200720052177 U CN 200720052177U CN 201042390 Y CN201042390 Y CN 201042390Y
- Authority
- CN
- China
- Prior art keywords
- group
- relay
- binding post
- power supply
- switch
- 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
Links
Images
Landscapes
- Cookers (AREA)
Abstract
A control circuit for an electric rice cooker is provided, which comprises a rice-cooking normal touch switch, a relay, a heating dish and a snap-action temperature controller. The heating dish is arranged with the snap-action temperature controller. The relay has three groups of wiring terminals, wherein a wiring terminal of the first group of relay coil is connected with a wiring terminal of a moving contact of the second group of relay coil, a rice-cooking switch and one terminal of a power supply in order; another wiring terminal of the first group of relay coil and another wiring terminal of the moving contact of the second group of relay coil are both connected with the other terminal of the power supply; a wiring terminal of a normal open static contact of the third group is connected with the snap-action temperature controller and then connected with a wiring terminal of the heating dish and one terminal of the powder supply in order; and another wiring terminal connected with another wiring terminal of the heating dish. The relay further comprises a heat-insulating sheet and a fourth group of wiring terminal. A wiring terminal of a normal open static contact of the fourth group of relay is suspended and another wiring terminal thereof is connected with the heat-insulating sheet and then a wiring terminal of the heating dish. The utility model can ensure the normal operation of the electric rice cooker and improve the quality of cooked rice, and is easy to assemble and use.
Description
Technical field:
The utility model relates to a kind of control circuit that is used for electric cooker.
Background technology:
Existing electric cooker control circuit, generally be that switch enclosure and rod, magnetic steel temperature limiter are cascaded, when opening the rice cooker switch box, the electric cooker circuit is connected, produce electric current, under the function of current, rod promotes the thimble of magnetic steel temperature limiter, makes magnetic sheet in the magnetic steel temperature limiter produce magnetic field and attracts each other, under the effect of suction, magnetic sheet is held rod, and rod further makes the contact of steel disc contact, thereby makes the circuit of electric cooker form the loop and carry out work.When the temperature of magnetic steel temperature limiter reaches one regularly, the magnetic sheet in the magnet steel is in the loss of excitation state, and inner spring separates magnetic sheet, and the thimble of magnetic steel temperature limiter promotes rod, makes the steel disc contact separately, and electric cooker is in keeping warm mode.But so there is following defective in the electric cooker control circuit: the first, because rod directly is connected with switch enclosure, magnetic steel temperature limiter, and magnetic steel temperature limiter conducts heat in switch enclosure by rod, and the switch enclosure temperature distortion, thus make the electric cooker cisco unity malfunction; The second, magnetic steel temperature limiter is under working for a long time, and the magnetic force of magnetic steel temperature limiter magnetic sheet slowly weakens, and makes magnetic sheet and rod often continue out, and causes electric cooker to be in keeping warm mode, influences the effect of cooking.
Summary of the invention:
The purpose of this utility model is exactly to propose a kind of electric cooker control circuit that can overcome above-mentioned prior art deficiency.
For achieving the above object, a kind of electric cooker control circuit of the utility model, comprise the switch of cooking, relay, heat-generating disc and Kick type temperature limiter, cook switch for often opening touch-switch, heat-generating disc is equipped with the Kick type temperature limiter, described relay has three winding terminals, every group possesses two binding posts, first group is the relay coil binding post, second group is relay movable contact binding post, the 3rd group is relay normally open stationary contact binding post, after one binding post of the first group relay coil connects a binding post of the second group relay movable contact, an end that connects power supply again through the switch of cooking, another binding post of the first group relay coil connects the other end of power supply, another binding post of the second group relay movable contact also connects the other end of power supply, and the binding post that the 3rd group relay is often opened stationary contact connects terminals of heat-generating disc and an end of power supply through the Kick type temperature limiter, and another binding post connects another terminals of heat-generating disc.
As improvement of the present utility model, also comprise the insulation sheet, above-mentioned relay also has the 4th winding terminal, and the 4th group is the normally closed stationary contact binding post of relay, one binding post of the normally closed stationary contact of the 4th group relay is unsettled, and another binding post connects an end of power supply through the insulation sheet.So that pot boils end, promptly behind the cooked, enter keeping warm mode automatically.
As further improvement of the utility model, also be provided with the insulation switch, this insulation switch is normally closed touch-switch, is arranged between the other end of another binding post of the first group relay coil and power supply.So that boil in the process, can enter keeping warm mode by the insulation switch at any time at pot.
Boil state in order to indicate electric cooker to be in pot, can also be provided with cook the indication current-limiting resistance and the indicator lamp of cooking, being attempted by after cook the indication current-limiting resistance and the indicator lamp series connection of cooking on an end of power supply and another binding post that the 3rd group relay is often opened stationary contact.
In order to indicate electric cooker to be in keeping warm mode, can also be provided with insulation indication current-limiting resistance and insulation indicator lamp, be attempted by after insulation indication current-limiting resistance and the series connection of insulation indicator lamp on another binding post of end of power supply and the normally closed stationary contact of the 4th group relay.
The utility model touch-switch, relay, Kick type temperature limiter replace switch enclosure, rod, the magnetic steel temperature limiter of prior art, play following effect:
1, touch-switch of the present utility model just is connected with relay, Kick type temperature limiter by electric wire, does not directly contact with heater members, so it is not high to be heated, is not easy to produce distortion, thereby prolongs the electric cooker working time.
What 2, the utility model adopted is the Kick type temperature limiter, is not subjected to the influence of magnetic force, thereby guarantees the electric cooker operate as normal.
3, the utility model assembling is simple, convenient, during assembling, can adopt the electric wire mode of plugging into fully, touch-switch, relay, Kick type temperature limiter are coupled together with electric wire, electric wire can form circuit loop after connecting, do not need the assembler to debug the contact as traditional electric cooker again, the quality instability of having avoided assembler's general idea to be caused.
Description of drawings:
Fig. 1 is the circuit diagram of the utility model embodiment;
The specific embodiment:
The CONSTRUCTED SPECIFICATION of the utility model embodiment is described in detail in detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model embodiment, comprise the K switch 1 of cooking, insulation K switch 2, relay J, heat-generating disc F, Kick type temperature limiter X, insulation sheet B, indication current-limiting resistance R1 cooks, indicator lamp L1 cooks, insulation indication current-limiting resistance R2 and insulation indicator lamp L2, the K switch of cooking 1 is for often opening touch-switch, insulation K switch 2 is normally closed touch-switch, heat-generating disc F is equipped with Kick type temperature limiter X, relay J has four winding terminals, every group possesses two binding posts, first group is relay coil binding post 1-1,1-2, second group is relay movable contact binding post 2-1,2-2, the 3rd group is relay normally open stationary contact binding post 3-1,3-2, the 4th group is the normally closed stationary contact binding post of relay 4-1,4-2, after one binding post 1-1 of the first group relay coil connects a binding post 2-1 of the second group relay movable contact, an end E1 who connects communication power supply 220V again through the K switch 1 of cooking, another binding post 1-2 of the first group relay coil connects the other end E2 of communication power supply 220V through insulation K switch 2, another binding post 2-2 of the second group relay movable contact also connects the other end E2 of communication power supply 220V, the binding post 3-1 that the 3rd group relay is often opened stationary contact connects the terminals F1 of heat-generating disc F and the end E1 of communication power supply 220V through Kick type temperature limiter X, another binding post 3-2 connects another terminals F2 of heat-generating disc F, one binding post 4-1 of the normally closed stationary contact of the 4th group relay is unsettled, and another binding post 4-2 connects the end E1 of communication power supply 220V through insulation sheet B.Cook and be attempted by after the indication current-limiting resistance R1 and the indicator lamp L1 series connection of cooking on the end E1 of communication power supply 220V and another binding post 3-2 that the 3rd group relay is often opened stationary contact.Be attempted by after insulation indication current-limiting resistance R2 and the insulation indicator lamp L2 series connection on another binding post 4-2 of end E1 of communication power supply and the normally closed stationary contact of the 4th group relay.
The operation principle of the utility model embodiment below is described in detail in detail:
After connecting communication power supply 220V, press the K switch 1 of cooking, the K switch of cooking 1 is connected, the relay J first winding terminal 1-1,1-2 is communicated with communication power supply 220V, the relay J coil electricity, produce magnetic field, the suction that magnetic field produces makes second group of movable contact of relay J often open stationary contact and contact i.e. binding post 2-1 and binding post 3-1 connection, binding post 2-2 and binding post 3-2 connection with the 3rd group, heat-generating disc F heating power, the indicator lamp L1 that cooks is bright, at this moment, if loose one's grip, promptly do not continue to press the K switch 1 of cooking, the K switch of cooking 1 is recovered off-state, and communication power supply 220V continues as the relay J coil power supply by Kick type temperature limiter X, and heat-generating disc F keeps "on" position, the heat that heat-generating disc F produces is transmitted to pot heart, forms rice-cooking function.When pot boils to a certain degree, when the temperature of electric cooker heat-generating disc F is too high, Kick type temperature limiter X disconnects, the relay J coil blackout, magnetic field disappears, second group of movable contact of relay J often opened stationary contact and separated with the 3rd group, and contacts with the 4th group of normally closed stationary contact, and promptly binding post 2-1 and binding post 3-1 disconnect, and connect with binding post 4-1, binding post 2-2 and binding post 3-2 disconnect, and connect heat-generating disc F outage with binding post 4-2, stop heating, the indicator lamp L1 that cooks goes out, and represents electric cooker pot to boil end, cooked.At this moment, insulation sheet B energising, L2 is bright for the insulation indicator lamp, and the air by in the insulation sheet B heating electric rice cooker makes electric cooker be in keeping warm mode.
Boil in the process at electric cooker pot, if thinking to stop at any time pot boils, enter keeping warm mode, then can press insulation K switch 2, insulation K switch 2 disconnects the relay J coil blackout, second group of movable contact of relay J contacts with the 4th group of normally closed stationary contact, heat-generating disc F outage, insulation sheet B energising, electric cooker enters keeping warm mode.At this moment, even loose one's grip, do not continue to press insulation K switch 2, insulation K switch 2 is recovered on-states, but the relay J coil can't switch on, and electric cooker keeps keeping warm mode.
Claims (6)
1. electric cooker control circuit, it is characterized in that: comprise the switch of cooking, relay, heat-generating disc and Kick type temperature limiter, cook switch for often opening touch-switch, heat-generating disc is equipped with the Kick type temperature limiter, described relay has three winding terminals, every group possesses two binding posts, first group is the relay coil binding post, second group is relay movable contact binding post, the 3rd group is relay normally open stationary contact binding post, after one binding post of the first group relay coil connects a binding post of the second group relay movable contact, an end that connects power supply again through the switch of cooking, another binding post of the first group relay coil connects the other end of power supply, another binding post of the second group relay movable contact also connects the other end of power supply, the binding post that the 3rd group relay is often opened stationary contact connects terminals of heat-generating disc and an end of power supply through the Kick type temperature limiter, and another binding post connects another terminals of heat-generating disc.
2. control circuit according to claim 1, it is characterized in that: also comprise the insulation sheet, described relay also has the 4th winding terminal, the 4th group is the normally closed stationary contact binding post of relay, one binding post of the normally closed stationary contact of the 4th group relay is unsettled, and another binding post connects an end of power supply through the insulation sheet.
3. control circuit according to claim 2 is characterized in that: also be provided with the insulation switch, this insulation switch is normally closed touch-switch, is arranged between the other end of another binding post of the first group relay coil and power supply.
4. according to each described control circuit of claim 1 to 3, it is characterized in that: also being provided with cook the indication current-limiting resistance and the indicator lamp of cooking, being attempted by after cook the indication current-limiting resistance and the indicator lamp series connection of cooking on an end of power supply and another binding post that the 3rd group relay is often opened stationary contact.
5. according to claim 2 or 3 described control circuits, it is characterized in that: also be provided with insulation indication current-limiting resistance and insulation indicator lamp, be attempted by after insulation indication current-limiting resistance and the series connection of insulation indicator lamp on another binding post of end of power supply and the normally closed stationary contact of the 4th group relay.
6. control circuit according to claim 5, it is characterized in that: also being provided with cook the indication current-limiting resistance and the indicator lamp of cooking, being attempted by after cook the indication current-limiting resistance and the indicator lamp series connection of cooking on an end of power supply and another binding post that the 3rd group relay is often opened stationary contact.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007200521771U CN201042390Y (en) | 2007-05-30 | 2007-05-30 | Electric cooker control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007200521771U CN201042390Y (en) | 2007-05-30 | 2007-05-30 | Electric cooker control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201042390Y true CN201042390Y (en) | 2008-04-02 |
Family
ID=39257273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2007200521771U Expired - Fee Related CN201042390Y (en) | 2007-05-30 | 2007-05-30 | Electric cooker control circuit |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201042390Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106027021A (en) * | 2016-03-24 | 2016-10-12 | 南通艾利特自动化有限公司 | New touch-based three-position enable switch |
-
2007
- 2007-05-30 CN CNU2007200521771U patent/CN201042390Y/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106027021A (en) * | 2016-03-24 | 2016-10-12 | 南通艾利特自动化有限公司 | New touch-based three-position enable switch |
CN106027021B (en) * | 2016-03-24 | 2019-01-01 | 苏州艾利特机器人有限公司 | A kind of enabled switch in three positions based on touch |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN201360911Y (en) | Multifunctional electric rice cooker with multi-section temperature control function | |
CN201042390Y (en) | Electric cooker control circuit | |
CN201274981Y (en) | Electric cooker with reserved boiling function | |
CN201299427Y (en) | Electric cooker control circuit | |
CN201341795Y (en) | Electric cooker and control circuit thereof | |
CN201213695Y (en) | Automatic energy-saving incubation type electric rice cooker circuit | |
CN102622005B (en) | Control circuit of electric cooker | |
CN201435984U (en) | Micro-pressure electric cooker | |
CN201115611Y (en) | Electronic temperature-sensing type temperature-control energy-saving anti-overflow multipurpose electric cooker | |
CN101884497B (en) | micro-pressure electric cooker and control method thereof | |
CN204990051U (en) | Power supply circuit | |
CN108738168A (en) | Electric cooking pot and its heating control circuit, control method | |
CN100522025C (en) | Temperature control device of electric cooker | |
CN203503552U (en) | Electromagnetic electrothermal relay | |
CN208705749U (en) | Temperature-control circuit and system | |
CN200997472Y (en) | Large-power AC/DC timing socket | |
CN201171595Y (en) | Inner pot temperature control system of electric cooker | |
CN201404093Y (en) | Control circuit of electric stewpan | |
CN201936806U (en) | Vacuum contact electromagnetic system | |
CN202843362U (en) | Electronic timer for electric cooker | |
CN201302585Y (en) | Electric energy meter automatic burning-prevention device | |
CN204404825U (en) | The adjustable self-heating control device of temperature and time | |
CN204889590U (en) | Electricity rice cooker worker module and electric rice cooker | |
WO2018196357A1 (en) | Electric cooking device and heating control circuit and control method therefor | |
CN201993658U (en) | Control circuit of electric cooker |
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: 20080402 Termination date: 20110530 |