CN201060423Y - Temperature-limiting device for heater of ceramic cooker - Google Patents
Temperature-limiting device for heater of ceramic cooker Download PDFInfo
- Publication number
- CN201060423Y CN201060423Y CNU2007201240385U CN200720124038U CN201060423Y CN 201060423 Y CN201060423 Y CN 201060423Y CN U2007201240385 U CNU2007201240385 U CN U2007201240385U CN 200720124038 U CN200720124038 U CN 200720124038U CN 201060423 Y CN201060423 Y CN 201060423Y
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- heat detector
- temperature
- magnet steel
- termination
- parallel
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Abstract
The utility model relates to a temperature limiter device for a ceramic cooker heater; the temperature limiter comprises a first temperature sensor arranged on a pot lid and a circuit board arranged on a thermal insulation cover; one end of the first temperature sensor is connected with one end of an AC power source. The utility model is characterized in that the temperature limiter device also comprises a second temperature sensor arranged at the bottom of an inner pot and a relay J with a normally open contact KJ arranged on the circuit board. The relay is connected in series with the second temperature sensor with one end of the series circuit connected with the other end of the AC power source and the other end connected with the other end of the first temperature sensor directly or through an electrical component. And a magnetic steel temperature control device and a heating element controlling the on and off of the device are arranged on the bottom part of the thermal insulation cover. After being in parallel connected with the first temperature sensor, the magnetic steel temperature control device is connected with a heater R through the normally open contact KJ of the relay J. And a manual switch of the magnetic steel temperature control device. The utility model can control cooking temperature accurately and reliably without being affected by environmental heat.
Description
Technical field
The utility model relates to a kind of temperature-limiting device of well heater of ceramic cooker.
Background technology
At present, the temperature-limiting device of the well heater of ceramic cooker comprises second heat detector that is located at first heat detector on the pot cover and is located at interior pot bottom center; Second heat detector is directly measured the temperature of ceramic cooker bottom.Because the reasons in structure of ceramic liner, the became uneven in its bottom of a pan is even variant, can accurately not measure the temperature in the pottery pot, therefore is difficult to control the temperature of cooking; In addition, because of being provided with heat-preservation cotton between heating element and the stay-warm case, have a large amount of heats to store during heating in stay-warm case, this heat also can influence the measuring accuracy of second heat detector, and the effect of cooking is not very desirable.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art and a kind of influence that is not subjected to the heat energy environment is provided, and can control the temperature of cooking accurately, the temperature-limiting device of the well heater of the ceramic cooker of dependable performance.
In order to achieve the above object, the utility model is achieved in that it is a kind of temperature-limiting device of well heater of ceramic cooker, comprises being contained in first heat detector on the pot cover and being contained in wiring board on the stay-warm case, an end of a termination alternating current of first heat detector; Be characterised in that: second heat detector that also comprises pot bottom in being located at; One installs the relay J of band normally opened contact KJ in the circuit board, and it is connected with second heat detector, the other end of the circuit one termination AC power after the series connection, the other end of another termination first heat detector or connect this end of first heat detector by electric elements; One is located at the magnet steel attemperating unit on the stay-warm case bottom and the heater element of control magnet steel attemperating unit break-make, and the magnet steel attemperating unit meets well heater R with the normally opened contact KJ by relay J after first heat detector is in parallel; The hand switch of one magnet steel attemperating unit.
Described magnet steel attemperating unit comprises magnet steel temperature controller, microswitch and mounting bracket; Magnet steel temperature controller and microswitch are installed on the mounting bracket; Heater element also is fixed on the mounting bracket; Hand switch comprises lever and the manual button that is " ladder " shape, manually button is fixedlyed connected with an end of lever, this end and the mounting bracket of lever are rotationally connected, and lever also flexibly connects with the contact of magnet steel temperature controller, and its other end can promote the button of microswitch.
Described heater element is the PTC heater element, an end of one termination first temperature controller, another termination AC power.
Also be provided with diode D3 on described wiring board, it is in parallel with normally opened contact KJ.
On described wiring board, also be provided with resistance R 1-R3, capacitor C 1-C4, diode D1, D2, voltage stabilizing diode DW and LED 1, LED2; In parallel with voltage stabilizing diode DW and capacitor C 1 after resistance R 1 is connected with LED 1, this parallel circuit is connected on the two ends of power supply and an end of one termination first heat detector; Resistance R 2 is connected with LED 2, and resistance R 3 is connected with diode D2, and two series circuits are in parallel mutually, the other end of a termination first heat detector of this parallel circuit, its another termination power; Capacitor C 2 be connected between first heat detector and second heat detector series connection point of its series connection point connecting resistance R3 after diode D1 connects; Capacitor C 3 and capacitor C 4 backs in parallel one termination power, an end of the other end second heat detector.
The utility model advantage compared with prior art is, is not subjected to the influence of heat energy environment, can control the temperature of cooking, dependable performance accurately.
Description of drawings
Fig. 1 is that the utility model is installed in the synoptic diagram on the ceramic cooker;
Fig. 2 is the upward view that removes shell of Fig. 1;
Fig. 3 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
As shown in Figures 1 to 3, it is a kind of temperature-limiting device of well heater of ceramic cooker, comprises an end that is contained in first heat detector 2 on the pot cover 1 and is contained in a termination alternating current of wiring board 5, the first heat detectors on the stay-warm case 3; One is located at second heat detector 6 of interior pot 4 bottoms; One is installed in the relay J of the band normally opened contact KJ on the wiring board 5, and it is connected with second heat detector, the other end of the circuit one termination AC power after the series connection, the other end of another termination first heat detector 2 or connect this end of first heat detector by electric elements; One is located at the magnet steel attemperating unit 8 on stay-warm case 3 bottoms and the heater element 10 of control magnet steel attemperating unit break-make, and the magnet steel attemperating unit meets well heater R with the normally opened contact KJ by relay J after first heat detector is in parallel; The hand switch 9 of one magnet steel attemperating unit.In the present embodiment, the magnet steel attemperating unit comprises magnet steel temperature controller 8.3, microswitch 8.2 and mounting bracket 8.1; Magnet steel temperature controller and microswitch are installed on the mounting bracket; Heater element 10 also is fixed on the mounting bracket; Hand switch 9 comprises lever 9.2 and the manual button 9.1 that is " ladder " shape, manually button is fixedlyed connected with an end of lever, this end and the mounting bracket of lever are rotationally connected, and lever also flexibly connects with the contact of magnet steel temperature controller, and its other end can promote the button of microswitch; Heater element 10 is RTC heater elements, an end of one termination first temperature controller 2, another termination AC power.Also be provided with diode D3 on wiring board 5, it is in parallel with normally opened contact KJ.On wiring board 5, also be provided with resistance R 1-R3, capacitor C 1-C4, diode D1, D2, voltage stabilizing diode DW and LED 1, LED2; In parallel with voltage stabilizing diode DW and capacitor C 1 after resistance R 1 is connected with LED 1, this parallel circuit is connected on the two ends of power supply and an end of one termination first heat detector 2; Resistance R 2 is connected with LED 2, and resistance R 3 is connected with diode D2, and two series circuits are in parallel mutually, the other end of a termination first heat detector of this parallel circuit, its another termination power; (above-mentioned electric elements) were connected between first heat detector 2 and second heat detector 6 series connection point of its series connection point connecting resistance R3 after capacitor C 2 was connected with diode D1; Capacitor C 3 and capacitor C 4 backs in parallel one termination power, an end of the other end second heat detector.Bottom at interior pot also is provided with fuse 7, and its series connection is in the input circuit of power supply.
During work, energized is stirred manual button 9.1 magnet steel temperature controller 8.3 is connected, PTC heater element and well heater R work, LED 1 is bright, the first also conducting of heat detector 2 this moment, when the temperature in the ceramic cooker reached the temperature of first heat detector setting, first heat detector disconnected, when the PTC heater element temperature when reaching the operating temperature of magnet steel temperature controller, action of magnet steel temperature controller and promotion lever 9.2 disconnect microswitch 8.2, and well heater R outage enters keeping warm mode; When temperature is lower than the design temperature of second temperature controller 6, the also conducting of first temperature controller this moment, relay J work, its normally opened contact KJ connects, well heater R work, when being higher than the design temperature of second temperature controller, second temperature controller disconnects, so circulation.
Claims (5)
1. the temperature-limiting device of the well heater of a ceramic cooker comprises being contained in first heat detector on the pot cover and being contained in wiring board on the stay-warm case, an end of a termination alternating current of first heat detector; It is characterized in that: also comprise second heat detector (6) that is located at interior pot (4) bottom; One is installed in the relay J of the band normally opened contact KJ on the wiring board (5), it is connected with second heat detector, the other end of the circuit one termination AC power after the series connection, the other end of another termination first heat detector (2) or connect this end of first heat detector by electric elements; One is located at the magnet steel attemperating unit (8) on stay-warm case (3) bottom and the heater element (10) of control magnet steel attemperating unit break-make, and the magnet steel attemperating unit meets well heater R with the normally opened contact KJ by relay J after first heat detector is in parallel; The hand switch of one magnet steel attemperating unit (9).
2. the temperature-limiting device of the well heater of ceramic cooker according to claim 1, it is characterized in that: magnet steel attemperating unit (8) comprises magnet steel temperature controller (8.3), microswitch (8.2) and mounting bracket (8.1); Magnet steel temperature controller and microswitch are installed on the mounting bracket; Heater element (10) also is fixed on the mounting bracket; Hand switch (9) comprises lever (9.2) and the manual button (9.1) that is " ladder " shape, manually button is fixedlyed connected with an end of lever, this end and the mounting bracket of lever are rotationally connected, and lever also flexibly connects with the contact of magnet steel temperature controller, and its other end can promote the button of microswitch.
3. the temperature-limiting device of the well heater of ceramic cooker according to claim 1, it is characterized in that: heater element (10) is the PTC heater element, an end of one termination first temperature controller (2), another termination AC power.
4. the temperature-limiting device of the well heater of ceramic cooker according to claim 1, it is characterized in that: also be provided with diode D3 on wiring board (5), it is in parallel with normally opened contact KJ.
5. the temperature-limiting device of the well heater of ceramic cooker according to claim 1 is characterized in that: also be provided with resistance R 1-R3, capacitor C 1-C4, diode D1, D2, voltage stabilizing diode DW and LED 1, LED2 on wiring board (5); In parallel with voltage stabilizing diode DW and capacitor C 1 after resistance R 1 is connected with LED 1, this parallel circuit is connected on the two ends of power supply and an end of one termination first heat detector (2); Resistance R 2 is connected with LED 2, and resistance R 3 is connected with diode D2, and two series circuits are in parallel mutually, the other end of a termination first heat detector of this parallel circuit, its another termination power; Capacitor C 2 be connected between first heat detector and second heat detector (6) series connection point of its series connection point connecting resistance R3 after diode D1 connects; Capacitor C 3 and capacitor C 4 backs in parallel one termination power, an end of the other end second heat detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201240385U CN201060423Y (en) | 2007-04-11 | 2007-04-11 | Temperature-limiting device for heater of ceramic cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201240385U CN201060423Y (en) | 2007-04-11 | 2007-04-11 | Temperature-limiting device for heater of ceramic cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060423Y true CN201060423Y (en) | 2008-05-14 |
Family
ID=39408906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201240385U Expired - Lifetime CN201060423Y (en) | 2007-04-11 | 2007-04-11 | Temperature-limiting device for heater of ceramic cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060423Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100521831C (en) * | 2007-04-11 | 2009-07-29 | 佛山市顺德区简氏家用电器厂 | Temperature limiter of ceramic cooking ware heater |
| CN102122493A (en) * | 2010-12-28 | 2011-07-13 | 广东易事特电源股份有限公司 | Display device for uninterruptible power supply (UPS) and regulated power supply |
| CN104898076A (en) * | 2014-03-07 | 2015-09-09 | 石家庄格力电器小家电有限公司 | Magnetic steel service life detection equipment |
-
2007
- 2007-04-11 CN CNU2007201240385U patent/CN201060423Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100521831C (en) * | 2007-04-11 | 2009-07-29 | 佛山市顺德区简氏家用电器厂 | Temperature limiter of ceramic cooking ware heater |
| CN102122493A (en) * | 2010-12-28 | 2011-07-13 | 广东易事特电源股份有限公司 | Display device for uninterruptible power supply (UPS) and regulated power supply |
| CN104898076A (en) * | 2014-03-07 | 2015-09-09 | 石家庄格力电器小家电有限公司 | Magnetic steel service life detection equipment |
| CN104898076B (en) * | 2014-03-07 | 2017-10-31 | 石家庄格力电器小家电有限公司 | Magnetic steel service life detection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070411 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |