CN201984362U - Water boiling controller - Google Patents
Water boiling controller Download PDFInfo
- Publication number
- CN201984362U CN201984362U CN2010206944517U CN201020694451U CN201984362U CN 201984362 U CN201984362 U CN 201984362U CN 2010206944517 U CN2010206944517 U CN 2010206944517U CN 201020694451 U CN201020694451 U CN 201020694451U CN 201984362 U CN201984362 U CN 201984362U
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- water
- temperature
- sensor
- utility
- singlechip
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000009835 boiling Methods 0.000 title abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 101150036282 Pfdn2 gene Proteins 0.000 description 3
- 102100024920 Prefoldin subunit 2 Human genes 0.000 description 3
- 101100243555 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GIM4 gene Proteins 0.000 description 3
- 239000002241 glass-ceramic Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
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Abstract
The utility model relates to an electromagnetic oven or an electric kettle for boiling water, particularly to a water boiling controller, comprising a temperature sensor; further comprising a sonic sensor, a sonic signal processing unit and a singlechip which are connected in order; the temperature sensor is connected with a signal input end of the singlechip. The utility model monitors water temperature change via a heat-sensitive sensor to provide the temperature data for the singlechip to detect water sound change in the kettle via the sonic sensor, thereby combining with the temperature information of the heat-sensitive sensor to be analyzed and judged via the singlechip, so that the utility model accurately detects the boiling point of the water, improves reliability of controlling temperature to accurately control the boiling of the water, protects water quality, and saves energy.
Description
Technical field
The utility model relates to and is used for electromagnetic oven to boil water or insulating pot, particularly a kind of controller to boil water.
Background technology
At present, the temperature automatically controlled thermistor that always adopts of existing electromagnetic oven heating to boil water is as temperature sensor, water temperature is passed through kettle, glass-ceramic panel conducts to the thermistor that is installed in the electromagnetic oven, make the resistance of thermistor be subjected to temperature variation and change, according to the heating power of the corresponding control electromagnetic oven of the variable quantity of thermistor, make water temperature be controlled at range of set temperature again.
Because the heat of water is to pass through kettle successively, glass-ceramic panels etc. conduct to thermistor indirectly, thereby the measurement of water temperature is subjected to room temperature, the thickness of glass-ceramic panel, material, structure, the electromagnetic oven internal temperature, the heat-conducting silicone grease quality, all multifactor influences such as the position of point for measuring temperature are difficult to detect the accurate temperature when water seethes with excitement in the kettle.On the other hand, the boiling point of water also is subjected to the influence of factors such as water quality, atmospheric pressure and changes, and therefore, existing electromagnetic oven adopts temperature control mode control heating to boil water merely, also is difficult to the boiling situation according to water, regulates electromagnetic oven power accurately.
The utility model content
The utility model has overcome above-mentioned shortcoming, and a kind of simple in structure, deft design, practical, safe more controller to boil water are provided.
The technical scheme in the invention for solving the technical problem is: a kind of controller to boil water, comprise temperature sensor, also comprise the sonic sensor, acoustic signals processing unit and the single-chip microcomputer that connect successively, described temperature sensor is connected to the signal input part of described single-chip microcomputer.
Described acoustic signals processing unit can comprise amplifying circuit and the comparator circuit that connects successively.
Described temperature sensor can adopt thermistor.
Described single-chip microcomputer can adopt S3F9454, and described amplifying circuit and comparator circuit can adopt amplifier LM358 to realize.
The utility model changes by described heat sensitive sensor monitor water temperature; for described single-chip microcomputer provides temperature data; and by the variation of described sonic sensor detection water-in-kettle sound; temperature information in conjunction with heat sensitive sensor this moment; make analysis, judgement by single-chip microcomputer, thereby accurately detect the fluidizing point of water, improve the temperature control reliability; reach accurate control purpose to boil water, both protected water quality that the purpose of energy saving of reaching is arranged.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
The utility model is applied in electromagnetic oven or the insulating pot, and as the controller that is used for control heater, described well heater can be solenoid or electric heater etc.
As shown in fig. 1, comprise successively the sonic sensor PFD2, acoustic signals processing unit and the single-chip microcomputer that connect, the signal input part that temperature sensor also is connected to described single-chip microcomputer links to each other, and the output terminal of described single-chip microcomputer connects also controls described well heater.Described acoustic signals processing unit comprises amplifying circuit and the comparator circuit that connects successively.Described temperature sensor adopts thermistor VR1.
Described heat sensitive sensor VR1 is as the low precision control of full warm area, monitor water temperature changes constantly, being sent to described single-chip microcomputer IC1 by detected stone or metal plate for standing a stove on as a precaution against fire temperature data analyzes, judges, described sonic sensor PFD2 receives the water-in-kettle acoustical signal, and amplifying circuit, the comparator circuit that constitutes by the U1A in the LM358 chip, U1B amplifies, the digital signal of relatively back output+5V/0V is delivered to described single-chip microcomputer IC1 interrupt pin and counted.The input end that is used to receive voice signal of described single-chip microcomputer IC1 receives that whenever a negative edge can interrupt once automatically, enters interrupt routine, and in the service routine, m_Counter adds 1 to global variable in interrupt routine.
As everyone knows, water is in heating process, and sound is constantly to change, and sound is less when beginning, and boiled sound is bigger before, and boiled back sound diminishes again.Described single-chip microcomputer carries out repeatedly value by the detected pulse number of sonic sensor, and the variation of pulse number in the process more to boil water when up-to-date number of pulses equals a certain ratio of original number of pulses, is judged as water and seethes with excitement.Be specially: described single-chip microcomputer IC1 detects described sonic sensor PFD2; adopt detect once each second; so when detecting 1 second; enter the acoustic control trace routine; read m_Counter; the size of m_Counter value is represented underwater sound size; when temperature reaches a certain set point; begin to detect the maximal value of m_Counter; and maximal value deposited in the m_Max variable; no longer maximal value is detected after detecting maximal value; if when the m_Counter value is greater than maximal value m_Max several times continuously; then restart to detect maximal value; single-chip microcomputer detects stone or metal plate for standing a stove on as a precaution against fire variation of temperature amount constantly; when detecting temperature spot when on the rise; the acoustic control that then resets detects; again begin to detect from maximal value. detected after the maximal value; if continuous a period of time detects m_Counter and is less than a setting value; for example during m_Max*N%; being judged as water and opening, stop heating after time-delay a period of time. this employing heat sensitive sensor adds the sonic sensor method, divides warm area control; testing process; learn from other's strong points to offset one's weaknesses, reference mutually adds the sonic sensor testing result according to heat sensitive sensor again; make analysis by single-chip microcomputer again; judge; avoided controlling the limitation of bringing, thereby accurately detected the fluidizing point of water, improved the temperature control reliability because of single temperature parameter; reach accurate control purpose to boil water, both protected water quality that the purpose of energy saving of reaching is arranged.
More than controller to boil water provided by the utility model is described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. a controller to boil water comprises temperature sensor, it is characterized in that: also comprise the sonic sensor, acoustic signals processing unit and the single-chip microcomputer that connect successively, described temperature sensor is connected to the signal input part of described single-chip microcomputer.
2. controller to boil water according to claim 1 is characterized in that: described acoustic signals processing unit comprises amplifying circuit and the comparator circuit that connects successively.
3. controller to boil water according to claim 1 and 2 is characterized in that: described temperature sensor adopts thermistor.
4. controller to boil water according to claim 2 is characterized in that: described single-chip microcomputer adopts S3F9454, and described amplifying circuit and comparator circuit adopt amplifier LM358 to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206944517U CN201984362U (en) | 2010-12-31 | 2010-12-31 | Water boiling controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206944517U CN201984362U (en) | 2010-12-31 | 2010-12-31 | Water boiling controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201984362U true CN201984362U (en) | 2011-09-21 |
Family
ID=44611818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206944517U Expired - Lifetime CN201984362U (en) | 2010-12-31 | 2010-12-31 | Water boiling controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201984362U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102813460A (en) * | 2012-08-30 | 2012-12-12 | 厦门越一电子科技有限公司 | Boiling water identification circuit and tea tray of induction cooker |
| CN104251502A (en) * | 2014-09-25 | 2014-12-31 | 中山市法兰宝电业有限公司 | Control system for audio curve detection of boiling water in electromagnetic oven and method thereof |
| CN104545418A (en) * | 2015-01-09 | 2015-04-29 | 广东美的厨房电器制造有限公司 | Cooking device and control method thereof |
-
2010
- 2010-12-31 CN CN2010206944517U patent/CN201984362U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102813460A (en) * | 2012-08-30 | 2012-12-12 | 厦门越一电子科技有限公司 | Boiling water identification circuit and tea tray of induction cooker |
| CN104251502A (en) * | 2014-09-25 | 2014-12-31 | 中山市法兰宝电业有限公司 | Control system for audio curve detection of boiling water in electromagnetic oven and method thereof |
| CN104545418A (en) * | 2015-01-09 | 2015-04-29 | 广东美的厨房电器制造有限公司 | Cooking device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HAILI GROUP CO., LTD., GUANGDONG PROV. Free format text: FORMER OWNER: CHEN JUNPING Effective date: 20131218 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131218 Address after: 515700 Sony Industrial Park, Xinli Road, Huanggang Town, Raoping County, Chaozhou, Guangdong Patentee after: Guangdong Haili Group Co., Ltd. Address before: 515700 Sony Industrial Park, Xinli Road, Huanggang Town, Raoping County, Chaozhou, Guangdong Patentee before: Chen Junping |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |