CN103343991A - Protection device of stove - Google Patents
Protection device of stove Download PDFInfo
- Publication number
- CN103343991A CN103343991A CN2013103351310A CN201310335131A CN103343991A CN 103343991 A CN103343991 A CN 103343991A CN 2013103351310 A CN2013103351310 A CN 2013103351310A CN 201310335131 A CN201310335131 A CN 201310335131A CN 103343991 A CN103343991 A CN 103343991A
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- stove
- single board
- weight
- electromagnetic valve
- food
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Abstract
The invention discloses a protection device of a stove, and belongs to the technical field of stove safety protection, in order to prevent the event of cookware dryout. The following measures are adopted for the technique of the scheme: a stove is provided with a weight sensor, and is used for weighing the net weight of food in cookware; the weight sensor is connected with an A/D (analog/digital) conversion circuit connected with a single board machine; the single board machine is connected with a power supply switch circuit or an electromagnetic valve driving circuit connected with a fuel gas electromagnetic valve. The advantages are that the single board machine can monitor the weight variation in the cookware at any time according to data obtained by the weight sensor; when liquid water is evaporated excessively through heating excessively, the net weight of food in the cookware is reduced to the reasonable level (according to different kinds of food), the single board machine adopts appropriate protection measures according to the preset program, such as shutoff of a power supply or a gas supply, so that the event of cookware dryout can be prevented.
Description
Technical field
The invention belongs to a technical field of stove and accessory safeguard protection.
Background technology
Stove and accessory is the instrument of family's indispensability, cook any prepared food all bound it, as cook, Baoshang and heat up water etc.In daily life, usually hear some housewifves complaint, own at Baoshang or when boiling water, owing to connect that electricity is drawn together or other things or be unwilling to wait on the table next door, the result has left the kitchen and has arrived the parlor and answer the call or see TV again or arrived neighbours and dropped in.During the such thing of having waken up by the time, get back to the kitchen at a glance water dryouied, pan is just emitting dense smoke, even lights red big fire.In this case, the kitchen if or else the housewife returns, consequence is hardly imaginable.In the actual life, this each make us pained border, field, show with us again and again.Certainly main here is people's factor, because people's notice is easy to be disperseed or attracted by other thing.Old old man particularly is so this class event is of common occurrence.Can establish the recurrence that one " defence line " prevents this type of event at stove and accessory.It is starting point of the present invention.
Summary of the invention
For preventing from dryouting the generation of pan event, this programme has been taked following measure technically: erection weight sensor on stove and accessory, and for the net weight of food in the weighing pan.Weight sensor connects modulus A/D change-over circuit, and analog to digital conversion circuit connects single board computer, and single board computer connects power switch circuit or driving circuit for electromagnetic valve, and driving circuit for electromagnetic valve connects gas electromagnetic valve.
The benefit of doing like this is: single board computer can be monitored the variation of weight in the pan at any time according to the data of weight sensor acquisition.Make the excessive evaporation of aqueous water when excessive heating occurring, when the net weight of food is reduced to less than reasonable levels in the pan (deciding on different foods), single board computer is taked suitable safeguard measure by preset program, for example cuts off the electricity supply or source of the gas.The event that so just can avoid dryouting pan takes place.
Description of drawings
Fig. 1. electric information stove and accessory circuit connection diagram.
Fig. 2. combustion gas class stove and accessory circuit connection diagram.
The specific embodiment
The alleged stove and accessory of the application refers to gas furnace, electromagnetic oven, electric furnace, electric cooker, micro-wave oven.The structure of this programme is that erection weight sensor on stove and accessory is for the net weight of food in the weighing pan.Weight sensor connects modulus A/D change-over circuit, and analog to digital conversion circuit connects single board computer, and single board computer connects power switch circuit or driving circuit for electromagnetic valve, and driving circuit for electromagnetic valve connects gas electromagnetic valve; The net weight of food has diversified mode in the erection weight sensor on stove and accessory, weighing pan.Erection weight sensor on the stove pin of stove and accessory for example, the weight that the gross weight that scale gets deducts stove and accessory and pan is exactly the net weight of food.And for example erection weight sensor between the panel of stove and accessory and body of heater after the gross weight that scale gets deducts the weight of panel, pan etc., just can draw the net weight of food.And for example erection weight sensor between pan support and body of heater after the gross weight that scale gets deducts the weight of pan support and pan, just can obtain the net weight of pot interior food.The method that can obtain the food net weight in a word is a lot, can not enumerate one by one here.Can choose comparatively be fit to a kind of according to the concrete condition of stove and accessory during practical application; Weight sensor connects analog to digital conversion circuit.Because weight sensor output is analog electrical signal, is not easy to single board computer and handles, so must be converted to digital electric signal to it.Analog to digital conversion circuit is exactly such circuit.Analog to digital conversion circuit is sent to single board computer after connecting single board computer and the analog electrical signal that weight sensor records being changed into digital electric signal, for the operation of single board computer provides foundation.Single board computer is stored exclusive disjunction to the data that weight sensor records by blas, just can draw the net weight of food in the pan; Because the present invention does not have specific (special) requirements to single board computer, have varied so be fit to the single board computer of this programme use.As long as can store and the single board computer that carries out data and logical operation all is fit to this programme and uses the data that weight sensor records; Single board computer connects power switch circuit or driving circuit for electromagnetic valve, and driving circuit for electromagnetic valve connects gas electromagnetic valve.Single board computer is looked the dissimilar stove and accessory of control and is connected different control circuits, and for example, if combustion gas class stove and accessory, what then single board computer connected is driving circuit for electromagnetic valve certainly, and driving circuit for electromagnetic valve connects gas electromagnetic valve, realizes the control to the stove and accessory source of the gas; If single board computer control be the electric information stove and accessory be to connect power switch circuit certainly, realize the control to the stove and accessory power supply.
The operation principle of this programme, but weight sensor is contained in the data that scale on the stove and accessory must comprise the gross weight of pan, stove and accessory or stove and accessory parts and food net weight.The analog electrical signal of weight sensor output is delivered to and is delivered to single board computer (MCU) after modulus A/D change-over circuit is converted to digital electric signal.Except the food net weight, the weight of other part all is changeless constant, and this constant can be got and is stored in advance in the memory of single board computer by the weight sensor scale.Single board computer deducts this constant according to gross weight, and namely the gross weight weight that deducts pan, stove and accessory or stove and accessory parts just can obtain the data of the net weight of food.After single board computer obtains the data of food net weight, in the heating process of stove and accessory, constantly monitor the variation of the weight data that weight sensor records.When excessive heating state occurring, as boiling water or during Baoshang, water or Tang Kailiao, but owner does not exist.In time do not shut down or reduce firepower, cause the water in the pot to evaporate in a large number.The net weight of food constantly reduces in the pot.Go down when veneer monitors this situation continued, the food net weight is reduced to the degree of artificial setting, when for example having reduced 5 percent or 10 (difference on cooking food is decided) of food net weight.Single board computer starts preset program, sounds the alarm.Close the power supply of stove and accessory simultaneously by power circuit; If gas furnace is then closed the source of the gas of stove and accessory by driving circuit for electromagnetic valve and gas electromagnetic valve.So just can prevent from dryouting the generation of pan event.
Claims (1)
1. the protective device on the stove and accessory; mainly comprise; weight sensor, modulus (A/D) change-over circuit, single board computer, power switch circuit, driving circuit for electromagnetic valve, gas electromagnetic valve; it is characterized in that: erection weight sensor on stove and accessory; the net weight that is used for food in the weighing pan; weight sensor connects modulus (A/D) change-over circuit; analog to digital conversion circuit connects single board computer; single board computer connects power switch circuit or driving circuit for electromagnetic valve, and driving circuit for electromagnetic valve connects gas electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103351310A CN103343991A (en) | 2013-08-03 | 2013-08-03 | Protection device of stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103351310A CN103343991A (en) | 2013-08-03 | 2013-08-03 | Protection device of stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103343991A true CN103343991A (en) | 2013-10-09 |
Family
ID=49278807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103351310A Withdrawn CN103343991A (en) | 2013-08-03 | 2013-08-03 | Protection device of stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103343991A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6253761B1 (en) * | 1999-03-05 | 2001-07-03 | Timothy Edward Shuler | Sensing device for stoves |
| CN2604639Y (en) * | 2003-03-08 | 2004-02-25 | 伍于奋 | Weighing intelligent stove |
| CN102080837A (en) * | 2010-04-07 | 2011-06-01 | 王曙光 | Numerical control intelligent energy-saving device for metering weight of heated food |
| CN202188536U (en) * | 2009-08-07 | 2012-04-11 | 佛山市顺德区瑞德电子实业有限公司 | Micro-wave oven control device |
| CN202209705U (en) * | 2011-09-20 | 2012-05-02 | 张成举 | Intelligent gas cooker control system |
| CN102444914A (en) * | 2010-10-14 | 2012-05-09 | 林有健 | Stove for preventing drying out and method thereof |
-
2013
- 2013-08-03 CN CN2013103351310A patent/CN103343991A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6253761B1 (en) * | 1999-03-05 | 2001-07-03 | Timothy Edward Shuler | Sensing device for stoves |
| CN2604639Y (en) * | 2003-03-08 | 2004-02-25 | 伍于奋 | Weighing intelligent stove |
| CN202188536U (en) * | 2009-08-07 | 2012-04-11 | 佛山市顺德区瑞德电子实业有限公司 | Micro-wave oven control device |
| CN102080837A (en) * | 2010-04-07 | 2011-06-01 | 王曙光 | Numerical control intelligent energy-saving device for metering weight of heated food |
| CN102444914A (en) * | 2010-10-14 | 2012-05-09 | 林有健 | Stove for preventing drying out and method thereof |
| CN202209705U (en) * | 2011-09-20 | 2012-05-02 | 张成举 | Intelligent gas cooker control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20131009 |