CN203442901U - Protective device on stove - Google Patents
Protective device on stove Download PDFInfo
- Publication number
- CN203442901U CN203442901U CN201320471617.2U CN201320471617U CN203442901U CN 203442901 U CN203442901 U CN 203442901U CN 201320471617 U CN201320471617 U CN 201320471617U CN 203442901 U CN203442901 U CN 203442901U
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- stove
- single board
- food
- board computer
- weight
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Abstract
The utility model relates to a protective device on a stove and belongs to the technical field of stove safety protection. In order to prevent dryout of cookware, the following measures are taken technically according to the scheme: a weight sensor is installed on the stove and used for weighing the net weight of food in the cookware; and the weight sensor is connected with an analog-to-digital conversion circuit connected with a single board computer, the single board computer is connected with a power switch circuit or a solenoid valve drive circuit, and the solenoid valve drive circuit is connected with a gas solenoid valve. The protective device has the advantages as follows: the single board computer can monitor the change of the weight of the food in the cookware at any moment according to data acquired by the weight sensor, when the net weight of the food in the cookware is decreased below a reasonable degree (the degree depends on different kinds of food) due to overheating and excessive evaporation, the single board computer takes appropriate protective measures according to a preprogram to prevent dryout of the cookware.
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 and all can't do without it, as cook, Baoshang and heating up water etc.In daily life, usually hear some housewifves complaint, own at Baoshang or while boiling water, owing to connecing that electricity is drawn together or other things or be unwilling to wait on table side, result has been left Dao Liao parlor, kitchen and has been answered the call or see TV again or arrived neighbours and dropped in.During the such thing of by the time having waken up, get back to 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 housewife returns, consequence is hardly imaginable.In actual life, this each make us pained border, field, with us, show again and again.Certainly main is here people's factor, because the notice by people is easy to be dispersed or is attracted by other thing.Old old man particularly, so this class event is of common occurrence.Can on stove and accessory, establish together " defence line " and prevent the recurrence of this type of event.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 weighing pan.Weight sensor connects analog to digital conversion circuit, analog to digital conversion circuit connecting single board machine, 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 is like this: single board computer can, according to the data of weight sensor acquisition, be monitored the variation of weight in pan at any time.When occurring that excessive heating makes the excessive evaporation of aqueous water, in pan, the net weight of food is reduced to (depending on different food) while being less than rational level, and single board computer is taked suitable safeguard measure by preset program, for example, cut off the electricity supply or source of the gas.So just can avoid the event of dryouting pan to occur.
Accompanying drawing explanation
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.This programme mainly comprises, weight sensor, analog to digital conversion circuit, single board computer, power switch circuit, driving circuit for electromagnetic valve, gas electromagnetic valve, and its concrete structure is: erection weight sensor on stove and accessory, for the net weight of food in weighing pan.Weight sensor connects analog to digital conversion circuit, analog to digital conversion circuit connecting single board machine, and single board computer connects power switch circuit or driving circuit for electromagnetic valve, and driving circuit for electromagnetic valve connects gas electromagnetic valve; Erection weight sensor on stove and accessory, in weighing pan, the net weight of food has diversified mode.Erection weight sensor on the stove pin of stove and accessory for example, the weight that the gross weight that scale obtains deducts stove and accessory and pan is exactly the net weight of food.Erection weight sensor between the panel of stove and accessory and body of heater and for example, the gross weight that scale obtains deducts after the weight of panel, pan etc., just can draw the net weight of food.Erection weight sensor between pan support and body of heater and for example, the gross weight that scale obtains deducts after the weight of pan support and pan, just can obtain the net weight of pot interior food.The method that can obtain in a word food net weight is a lot, can not enumerate here.During practical application, can, according to the concrete condition of stove and accessory, choose be comparatively applicable to a kind of; Weight sensor connects analog to digital conversion circuit.Because weight sensor output is analog electrical signal, is not easy to single board computer and processes, so it must be converted to digital electric signal.Analog to digital conversion circuit is exactly such circuit.After changing digital electric signal into, analog to digital conversion circuit connecting single board machine the analog electrical signal that weight sensor is recorded be sent to single board computer, for the operation of single board computer provides foundation.The data that single board computer records weight sensor are stored exclusive disjunction by blas, just can draw the net weight of food in pan; Because the present invention does not have specific (special) requirements to single board computer, so be applicable to the single board computer of this programme use, have varied.As long as the data that can record weight sensor are stored and the single board computer that carries out data and logical operation is all applicable to this programme and uses; 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 connects different control circuits depending on controlling dissimilar stove and accessory, and for example, if combustion gas class stove and accessory, what 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 stove and accessory source of the gas; If the electric information stove and accessory that single board computer is controlled, is to connect power switch circuit certainly, realize the control to stove and accessory power supply.
The operation principle of this programme, weight sensor is contained on stove and accessory the data that can scale 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 after analog to digital conversion circuit is converted to digital electric signal and is delivered to single board computer (MCU).Except food net weight, the weight of other part is all changeless constant, and this constant can be obtained by weight sensor scale also pre-stored in the memory of single board computer.Single board computer deducts this constant according to gross weight, and the weight that gross weight deducts pan, stove and accessory or stove and accessory parts just can obtain the data of the net weight of food.Single board computer obtains after the data of food net weight, in the heating process of stove and accessory, constantly monitors the variation of the weight data that weight sensor records.When occurring excessive heating state, as boiled water or during Baoshang, water or Tang Kailiao, but owner does not exist.Do not shut down in time or reduce firepower, causing the water in pot to evaporate in a large number.In pot, the net weight of food constantly reduces.When veneer monitors this situation continued, go down, food net weight is reduced to the degree of artificial setting, for example, while having reduced 5 percent or 10 (depending on the difference of cooking food) of food net weight.Single board computer starts preset program, sounds the alarm.By power circuit, close the power supply of stove and accessory simultaneously; If gas furnace is 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 a stove and accessory; mainly comprise; weight sensor, analog to digital conversion 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; for the net weight of food in weighing pan, weight sensor connects analog to digital conversion circuit, analog to digital conversion circuit connecting single board machine; 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 |
|---|---|---|---|
| CN201320471617.2U CN203442901U (en) | 2013-08-03 | 2013-08-03 | Protective device on stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471617.2U CN203442901U (en) | 2013-08-03 | 2013-08-03 | Protective device on stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203442901U true CN203442901U (en) | 2014-02-19 |
Family
ID=50093953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320471617.2U Expired - Lifetime CN203442901U (en) | 2013-08-03 | 2013-08-03 | Protective device on stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203442901U (en) |
-
2013
- 2013-08-03 CN CN201320471617.2U patent/CN203442901U/en not_active Expired - Lifetime
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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 |
Granted publication date: 20140219 Effective date of abandoning: 20150917 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |