CN202078136U - Electric kettle with boiling prompt function - Google Patents
Electric kettle with boiling prompt function Download PDFInfo
- Publication number
- CN202078136U CN202078136U CN2011200835506U CN201120083550U CN202078136U CN 202078136 U CN202078136 U CN 202078136U CN 2011200835506 U CN2011200835506 U CN 2011200835506U CN 201120083550 U CN201120083550 U CN 201120083550U CN 202078136 U CN202078136 U CN 202078136U
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- relay
- controller
- power supply
- power switch
- module
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Abstract
The utility model discloses an electric kettle with a boiling prompt function. The electric kettle comprises a power switch (ST), an electric heater (FH), a sensor (RQ), a controller (LSE), a relay (J), a sound play module and a transformer rectifier module, wherein the power switch (ST) is connected with a power supply; the electric heater is controlled by the power switch; the sensor is used for detecting temperature of water in the kettle; the controller is used for receiving a sensor signal; the relay is controlled by the controller; the sound play module is controlled by a normally open contact of the relay; the transformer rectifier module is used for providing power for the controller, the relay and the sound play module; and a normally open contact of the power switch is connected in parallel with another normally open contact of the relay and then is connected in series between the transformer rectifier module and the power supply. Compared with the prior art, the electric kettle has the advantages that: sound can be sent out to prompt a user to use boiled water after the water is boiled, so that the boiled water can be prevented from being cooled because the user forgets to use, and great convenience is brought to the user.
Description
Technical field
The utility model relates to insulating pot, relates in particular to a kind of insulating pot with boiled prompt facility.
Background technology
Generally use the kettle about 1 liter in hotel guest-room, it is after boiling water, and the automatic disconnection electric heater stops heating, and it has the fast advantage easy to use of heating, for people are extensive use of.But this insulating pot does not have prompting function after boiling water, and the user presses after the heater switch, generally can leave and handle other things, waits water often to forget after boiled and takes, and causes boiling water to cool off, and is unfavorable for using.
The utility model content
The utility model is the problems referred to above that will solve prior art, proposes a kind of insulating pot with boiled prompt facility.
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is a kind of insulating pot with boiled prompt facility of design, comprise the power switch that connects power supply, be subjected to power switch control electric heater, survey the water-in-kettle temperature sensor, the controller of accepting sensor signal, the relay that is controlled by the controller, be subjected to the sound playing module of relay normally open contact control and the transformation rectification module of powering to controller and relay and sound playing module; Be serially connected between transformation rectification module and the power supply after another normally opened contact parallel connection of the normally opened contact of wherein said power switch and relay.
Also be connected in series a manual switch between described transformation rectification module and the power supply.
Compared with prior art, the utility model can send the sound after boiling water, and the prompting user takes boiling water, makes boiling water cool off in order to avoid the user forgets to take, and greatly makes things convenient for the user.
Description of drawings
Below in conjunction with drawings and Examples the utility model is made detailed explanation, wherein:
Fig. 1 is the circuit diagram of the utility model preferred embodiment.
The specific embodiment
The utility model discloses a kind of insulating pot with boiled prompt facility, it has base and kettle body.Base is electrically connected with the city, and has the socket of power supply; The plug XP, electric heater and the control circuit that have power taking in the kettle body.Insulating pot can send voice prompt after boiling water, the prompting people take boiling water.
The utility model comprises the power switch ST that connects power supply, is subjected to the electric heater FH of power switch control, survey the water-in-kettle temperature sensor RQ, the controller LSE that accepts sensor signal, the relay J that is controlled by the controller, be subjected to the sound playing module of relay normally open contact control and to the transformation rectification module of controller and relay and the power supply of sound playing module; Be serially connected between transformation rectification module and the power supply after another normally opened contact parallel connection of the normally opened contact of wherein said power switch and relay.Also be connected in series a manual switch S H between transformation rectification module and the power supply.
Referring to the circuit diagram of the utility model preferred embodiment shown in Fig. 1, power switch ST is a kind of push switch, presses switch in the time of need heating up water, ST main contacts and normally opened contact closure, and to electric heater FH power supply, the water in the kettle body is heated power supply through the ST main contacts; To the power supply of transformation rectification module, be made up of transformer T and rectifier bridge U by the transformation rectification module through the ST normally opened contact for power supply.The direct current that rectification is come out is to controller, relay, sound playing module for power supply.Electric heater FH places in the kettle body or kettle body bottom.Sensor RQ is the switching mode thermistor that is close to the PTC chip degree coefficient on the kettle body side wall, and two of RQ is terminated to the 1st, 2 pin of controller LSE, and LSE the 3rd connects direct current positive pole, the 5th pin ground connection, the 4th pin and sends control signal.When the water-in-kettle temperature is low the resistance of RQ less (＜50K), so the 4th pin of LSE output high level, triode Q1 ends, relay J release, normally opened contact is on off state; In case water boiling (100 ℃), the resistance step of RQ rises, much larger than 50K, 1, the 2 pin loops that are equivalent to LSE disconnect, so the 4 pin output low levels of LSE, triode Q1 conducting, relay J is adhesive immediately, be connected in parallel on the relay J normally opened contact closure at power switch ST normally opened contact two ends, control loop is able to self-insurance.It may be noted that, in case the sheet metal temperature distortion in water boiling (100 ℃) power switch ST, driving switch becomes shutoff by conducting, have 5 to 10 seconds time-delay during this, RQ selects the switching mode thermistor of positive temperature coefficient for use, and its curie point is 100 ℃, and its resistance step rises, the relay J action is shorter than the time of ST time-delay, and control loop can be realized self-insurance.After the relay J adhesive, its another normally opened contact is connected, and makes dc source to the sound playing module for power supply, and the sound playing module is sent " drip, drip " sound at interval.When the user thinks quietly, whenever close hand switch SH, cut off transformation rectification module power supply, voice prompt function is not just not in action; Or the user mentions the kettle body from base, and The whole control circuit dead electricity is not had " drip, drip " sound again yet, and relay resets simultaneously, and when again the kettle body being put back to base, the sound playing module can not worked yet again.
Above embodiment is only for illustrating non-providing constraints.Anyly do not break away from the utility model spirit and category, and, all should be contained among the application's the claim scope its equivalent modifications of carrying out or change.
Claims (2)
1. insulating pot with boiled prompt facility, comprise the power switch that connects power supply, be subjected to the electric heater of power switch control, it is characterized in that also comprising: survey the water-in-kettle temperature sensor, the controller of accepting sensor signal, the relay that is controlled by the controller, be subjected to the sound playing module of relay normally open contact control and to the transformation rectification module of controller and relay and the power supply of sound playing module; Be serially connected between transformation rectification module and the power supply after another normally opened contact parallel connection of the normally opened contact of wherein said power switch and relay.
2. insulating pot as claimed in claim 1 is characterized in that: also be connected in series a manual switch between described transformation rectification module and the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200835506U CN202078136U (en) | 2011-03-25 | 2011-03-25 | Electric kettle with boiling prompt function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200835506U CN202078136U (en) | 2011-03-25 | 2011-03-25 | Electric kettle with boiling prompt function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202078136U true CN202078136U (en) | 2011-12-21 |
Family
ID=45338797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200835506U Expired - Fee Related CN202078136U (en) | 2011-03-25 | 2011-03-25 | Electric kettle with boiling prompt function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202078136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108991921A (en) * | 2017-06-07 | 2018-12-14 | 广东美的生活电器制造有限公司 | Heating means, device, heating vessel and computer readable storage medium |
-
2011
- 2011-03-25 CN CN2011200835506U patent/CN202078136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108991921A (en) * | 2017-06-07 | 2018-12-14 | 广东美的生活电器制造有限公司 | Heating means, device, heating vessel and computer readable storage medium |
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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: 20111221 Termination date: 20130325 |