CN208301491U - A kind of electric kettle with timing power-off function - Google Patents

Abstract

The utility model provides a kind of electric kettle with timing power-off function, it includes bottle body, bottom of the pot, power supply base, power supply line and heat-generating disc set on bottom of the pot, master control PCBA is equipped in the power supply base, the power supply line is electrically connected the master control PCBA, the master control PCBA is equipped with switch, load detecting circuit and timing power-off circuit, the power supply base is equipped with start button and lower connector, the start button abuts the switch, the bottom of the pot is equipped with automatically reset temperature controller and anti-dry heating temperature controller, the bottle body bottom is equipped with upper connector, the upper connector is mating identical with the lower connector and is electrically connected, the upper connector is electrically connected the anti-dry heating temperature controller, the heat-generating disc and the temperature controller that automatically resets.The utility model has the electric kettle of timing power-off function, and structure is simple, securely and reliably, can work under different atmospheric pressure environments.

Description

A kind of electric kettle with timing power-off function

Technical field

The utility model relates to a kind of kettle more particularly to a kind of electric kettles with timing power-off function.

Background technique

Kettle is using steam induction type or electronics NTC structure of controlling temperature, steam induction type temperature control knot mostly on the market at present Structure passes through pot internal steam pipe letting through steam to bottom of the pot, carries out temperature-sensitive control, key switch one using the mechanical structure of thermal deformation As be located on pot, and bottom of the pot complicated in mechanical structure is unfavorable for assembling；Electronics NTC structure of controlling temperature is due to directly detecting water temperature in pot It is controlled, higher cost, and since region is different, especially highlands, the temperature value of electronics NTC setting may nothing Method reaches, and generates control failure.For example, by taking kettle 1.5L as an example, power 2000W, general kick temperature controller set temperature is 96-98 degree or so, kettle normal working hours to boil water is generally three to four minutes, and high altitude localities, and water boiling may be also Do not reach the disconnected temperature of jump, so temperature controller fails, kettle can be to boil water until dryouting always, is easy to bring safety hidden in this way Suffer from.

Utility model content

Based on the deficiencies of the prior art, what the utility model was created is designed to provide a kind of simple and reasonable, safety Reliably, the low electric kettle of production cost.To achieve the goals above, the utility model provides a kind of with timing power-off function The electric kettle of energy comprising bottle body, bottom of the pot, power supply base, power supply line and the heat-generating disc set on bottom of the pot, it is characterised in that: institute It states and is equipped with master control PCBA in power supply base, the power supply line is electrically connected the master control PCBBA, and the master control PCBA is equipped with and opens It closes, load detecting circuit and timing power-off circuit, the power supply base are pressed equipped with start button and lower connector, the starting Key abuts the switch, and the bottom of the pot is equipped with automatically reset temperature controller and anti-dry heating temperature controller, and the bottle body bottom is equipped with Upper connector, the upper connector is mating identical with the lower connector and is electrically connected, and the upper connector is electrically connected institute Anti-dry heating temperature controller, the heat-generating disc and the temperature controller that automatically resets are stated, the timing power-off circuit includes MCU control mould Block, power module and relay, the switch are electrically connected MCU control module, the MCU control module be electrically connected it is described after The input terminal of electric appliance, the output end of the relay and the lower connector are electrically connected, and the relay original state is normal Open state.

There is the improvement of the electric kettle of timing power-off function as the utility model, the utility model has timing power-off The power supply line of the electric kettle of function includes firewire and zero curve, the power module include rectification circuit, reduction voltage circuit and Voltage regulator circuit, the rectification circuit, reduction voltage circuit and voltage regulator circuit are sequentially connected in series, and the rectification circuit is electrically connected institute Firewire is stated, the voltage regulator circuit is electrically connected MCU control module.

There is the improvement of the electric kettle of timing power-off function as the utility model, the utility model has timing power-off Described load detecting circuit one end of the electric kettle of function is electrically connected the MCU control module, and the other end is electrically connected institute State lower connector and zero curve.

There is the improvement of the electric kettle of timing power-off function as the utility model, the utility model has timing power-off The electric kettle of function further includes electronic display, and the electronic display is located on power supply base, the electronic display It is electrically connected with the MCU control module.

Compared with prior art, the utility model has below with the electric kettle of timing power-off function beneficial to effect Fruit: simple and reasonable, safe and reliable, production cost is low.

Detailed description of the invention

Fig. 1 is the stereoscopic schematic diagram for the electric kettle preferred embodiment that the utility model has timing power-off function.

Fig. 2 is the bottom of the pot partial schematic diagram for the electric kettle preferred embodiment that the utility model has timing power-off function.

Fig. 3 is the circuitry block schematic diagram for the electric kettle preferred embodiment that the utility model has timing power-off function.

Specific embodiment

The utility model have timing power-off function electric kettle be suitable for it is to boil water, boil tea or heat other liquid.

With reference to Fig. 1, Fig. 2 and Fig. 3, the utility model, which is described in detail, has the preferred reality of electric kettle of timing power-off function Apply example.

The utility model has the electric kettle of timing power-off function comprising bottle body 1, bottom of the pot 2, power supply base 7, power supply Line 15 and heat-generating disc 3 set on bottom of the pot 2, it is characterised in that: be equipped with master control PCBA10, the power supply line in the power supply base 7 15 are electrically connected the master control PCBA10, and the master control PCBA10 is equipped with switch 11, load detecting circuit 13 and timing power-off electricity Road 12, the power supply base 7 are equipped with start button 8 and lower connector 9, and the start button 8 abuts the switch 11, described Bottom of the pot 2 automatically reset temperature controller 5 and anti-dry heating temperature controller 4 be installed, 1 bottom of bottle body is equipped with upper connector 6, it is described on Connector 6 is mating identical with the lower connector 9 and is electrically connected, and the upper connector 6 is electrically connected the anti-dry temperature control Device 4, the heat-generating disc 3 and the temperature controller 5 that automatically resets, the timing power-off circuit 12 include MCU control module 121, electricity Source module and relay 126, the switch 11 are electrically connected MCU control module 121, and the MCU control module 121 is electrically connected The input terminal of the relay 126, the output end of the relay 126 and the lower connector 9 are electrically connected, the relay 126 original states are normally open.

In the present embodiment, it includes fire that the utility model, which has the power supply line 15 of the electric kettle of timing power-off function, Line L and zero curve N, the power module include rectification circuit 123, reduction voltage circuit 124 and voltage regulator circuit 125, the rectification circuit 123, reduction voltage circuit 124 and voltage regulator circuit 125 are sequentially connected in series, and the rectification circuit 123 is electrically connected the firewire L, The voltage regulator circuit 125 is electrically connected MCU control module 121.

In the present embodiment, the utility model has the load detecting circuit 13 of the electric kettle of timing power-off function One end is electrically connected the MCU control module 121, and the other end is electrically connected the lower connector 9 and zero curve N.The utility model Electric kettle with timing power-off function, by the power supply line 15 connect power grid (alternating current), the power module obtain it is electric after Working power is provided to the MCU control module 121, pressing the start button 8 is closed the switch 11, the MCU control Molding block 121 starts countdown power-off, while electric signal is supplied to the relay 126 makes its closure, so that described Lower connector 9 and the upper connector 6 must conduct, and the heat-generating disc 3 is begun to warm up, at normal atmospheric pressure, the runback Position temperature controller 5 detects the temperature of the heat-generating disc 3, (reaches time the falling less than setting of set temperature after reaching set temperature The time of timing power-off), the Self-resetting temperature controller 5 disconnects power supply, and the heat-generating disc 3 powers off, at this time the load detecting electricity Road 13 detects that load voltage changes, and generates signal and feed back to the MCU control module 121, and then control the relay 126 disconnect, and the relay 126 restPoses.And under highlands or subnormal ambient, since water is in the temperature of boiling The temperature spot that the Self-resetting temperature controller 5 powers off is not achieved, then the Self-resetting temperature controller 5 can fail, the timing at this time It cuts off the power after the time that power-down circuit 12 reaches countdown power-off, guarantees that the utility model has the electric heating of timing power-off function Kettle will not be further continued for work.

In the present embodiment, what the utility model had the electric kettle of timing power-off function further includes electronic display 14, the electronic display 14 is located on power supply base 7, and the electronic display 14 electrically connects with the MCU control module 121 It connects.

There is the utility model the electronic display 14 of the electric kettle of timing power-off function can show that timing is disconnected The electricity remaining time, to remind consumer.

Compared with prior art, the utility model has the following beneficial effects: it is simple and reasonable, safe and reliable, raw It produces at low cost.

Above disclosed is only the preferred embodiment of the utility model, certainly cannot be practical new to limit this with this The interest field of type, therefore equivalent variations made according to the patent scope of the utility model still belong to the utility model and are covered Range.

Claims (3)

1. a kind of electric kettle with timing power-off function comprising bottle body, bottom of the pot, power supply base, power supply line and be set to pot The heat-generating disc at bottom, it is characterised in that: master control PCBA is equipped in the power supply base, the power supply line is electrically connected the master control PCBA, the master control PCBA are equipped with switch, load detecting circuit and timing power-off circuit, and the power supply base is equipped with starting and presses Key and lower connector, the start button abut the switch, and the bottom of the pot is equipped with automatically reset temperature controller and anti-dry Temperature controller, the bottle body bottom are equipped with upper connector, and the upper connector is mating identical with the lower connector and is electrically connected, The upper connector is electrically connected the anti-dry heating temperature controller, the heat-generating disc and the temperature controller that automatically resets, the timing Power-down circuit includes MCU control module, power module and relay, and the switch is electrically connected MCU control module, the MCU Control module is electrically connected the input terminal of the relay, and the output end of the relay and the lower connector are electrically connected, The relay original state is normally open, further includes electronic display, the electronic display is located on power supply base, institute It states electronic display and the MCU control module is electrically connected.

2. the electric kettle according to claim 1 with timing power-off function, it is characterised in that: the power supply line includes Firewire and zero curve, the power module include rectification circuit, reduction voltage circuit and voltage regulator circuit, the rectification circuit, reduction voltage circuit It is sequentially connected in series with voltage regulator circuit, and the rectification circuit is electrically connected the firewire, the voltage regulator circuit is electrically connected MCU Control module.

3. the electric kettle according to claim 2 with timing power-off function, it is characterised in that: the load detecting electricity Road one end is electrically connected the MCU control module, and the other end is electrically connected the lower connector and zero curve.