CN209644666U

CN209644666U - Electric kettle

Info

Publication number: CN209644666U
Application number: CN201821729967.3U
Authority: CN
Inventors: 周晗琦; 王之凝; 汪子闰
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-25
Filing date: 2018-10-25
Publication date: 2019-11-19
Anticipated expiration: 2028-10-25

Abstract

The utility model discloses a kind of electric kettle, including kettle body and pedestal, it is provided in the kettle body for electrically heated resistor R and temperature sensor, the resistor R is connect by electric wire with attaching plug；The attaching plug is the plug that circuit is protected with body leakage protection and anti-dry.The utility model advantage is that structure is simple, easy to operate, securely and reliably.Power-on switch is located at plug position, realizes that the single set time is powered by the time relay, insulating pot kettle body is then rear not charged with pedestal；If the timely time relay that pours does not reach setting time and has foreign matter when putting back to pedestal after pouring this when or drip into kettle pedestal, electric leakage and short-circuit protection can cut off the power in time after water boiling；Control unit encapsulates and far from dangerous water source, and self-locking function is safe and reliable；Use occasion is extensive；Use cost is low.

Description

Electric kettle

Technical field

The utility model relates to household electrical appliance, more particularly, to a kind of electric kettle.

Background technique

The advantages that insulating pot has heating speed fast, and heat insulation effect is good, and filtering function is strong, and style is more.Electricity common at present Hot type hot-water bottle is anti-dry whistle formula electric kettle, and on the basis of blowing a whistle formula insulating pot design principle, it is automatic to be additionally arranged limit temperature Controller (mainly bimetallic thermostat or magnetic control constant temperature automatic switch), when the water is boiling, the vapor of generation makes The bi-metal plate deformed of temperature-sensing element, driving microswitch are cut off the power, and automatic constant-temperature control switch under normal circumstances will Automatically cut off the power, electric kettle protected not to be burned out, but also will appear bi-metal plate deformed it is indiscrete when, this when Waiting can the initiation fire of dry combustion method always.Meanwhile the kettle body of electric kettle is independently separated with pedestal in real use, because of people's lives Habit is different, and the power outlet of some kettle pedestals is to be always held at energized state, this is the bad habit of a danger close, holds Easily occur will appear overflow in boiling water because kettle adds water excessive when heating up water and going out the phenomenon that kettle body enters kettle pedestal, this Sample is likely to occur water droplet when kettle body is put back to pedestal after the completion of people pour or foreign matter enters pedestal and electric shock thing occurs Therefore.

Summary of the invention

The utility model aim is to provide a kind of electric kettle for avoiding dry combustion method or electric shock.

To achieve the above object, the utility model can take following technical proposals:

Electric kettle described in the utility model, including kettle body and pedestal are provided with for electrically heated in the kettle body Resistor R and temperature sensor, the resistor R are connect by electric wire with attaching plug；The attaching plug is with shell The plug of earth leakage protective and anti-dry protection circuit.

The body leakage protection and anti-dry protection circuit include indicator light RD, intermediate relay K1, the time relay K2, air switch QF；Firewire contact inserting column L, the zero curve contact inserting column N of the attaching plug are respectively with the air switch QF's Power input connection；The zero line output contact of air switch QF respectively with the resistor R, indicator light RD, intermediate relay Coil K1 is connected with one end of time relay coil K2；The other end of resistor R, indicator light RD and intermediate relay coil K1 Contact j2, point driving switch of heating up water are opened by the normally closed delay of normally-closed contact Rt, time relay coil K2 by temperature sensor The series arm of SB composition is connect with the firewire output contact of air switch QF；The other end of time relay coil K2 passes through burning Water point driving switch SB is connect with the firewire output contact of air switch QF；The normally opened contact j1 of intermediate relay coil K1 with heat up water Point driving switch SB is to being in parallel.

The utility model advantage is that structure is simple, easy to operate, securely and reliably.Power-on switch is located at plug position, leads to It crosses the time relay and realizes that the single set time is powered, insulating pot kettle body is then rear not charged with pedestal；After water boiling if The timely time relay that pours does not reach setting time, when putting back to pedestal after pouring this when, have foreign matter or drip into Enter kettle pedestal, electric leakage and short-circuit protection can cut off the power in time；Control unit encapsulation and separate dangerous water source, self-locking function It can be safe and reliable；Use occasion is extensive；Use cost is low.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the circuit diagram of the utility model.

Specific embodiment

As shown in Figure 1, 2, electric kettle described in the utility model, including kettle body 1 and pedestal 2, the interior setting of kettle body 1 are useful In electrically heated resistor R and temperature sensor, the resistor R is connect by electric wire with attaching plug 3；Attaching plug 3 is Plug with body leakage protection and anti-dry protection circuit.

The body leakage protection and anti-dry protection circuit include indicator light RD, intermediate relay K1, the time relay K2, air switch QF；Firewire contact inserting column L, the zero curve contact inserting column N of the attaching plug 3 respectively with the air switch QF Power input connection；The zero line output contact of air switch QF respectively with the resistor R, indicator light RD, intermediate relay Device coil K1 is connected with one end of time relay coil K2；Resistor R, indicator light RD and intermediate relay coil K1's is another End is by the way that contact j2 is opened in the normally closed delay of normally-closed contact Rt, time relay coil K2 by temperature sensor, crawl of heating up water is opened The series arm for closing SB composition is connect with the firewire output contact of air switch QF；The other end of time relay coil K2 passes through The point driving switch SB that heats up water is connect with the firewire output contact of air switch QF；The normally opened contact j1 and burning of intermediate relay coil K1 Water point driving switch SB is to being in parallel.

The circuit operation principle of the utility model is summarized as follows:

When boiling water, drinking water is injected into kettle body 1 first, then clicks the point driving switch SB that heats up water；In at this point, Between relay coil K1 obtain electric, normally opened contact j1 closure will heat up water point driving switch SB short circuit, the resistor R in 1 interlayer of kettle body Start to heat drinking water, while indicator light RD is lighted.

When drinking water is heated to temperature (such as 100 DEG C) of setting, the normally-closed contact Rt of temperature sensor is disconnected, intermediate Relay coil K1 power loss, normally opened contact j1 are disconnected, and stop heating the drinking water in kettle body 1.

The effect of the time relay is to prevent 1 dry combustion method of kettle body；Due to the capacity of kettle body 1 and for electrically heated resistor R Power be it is known, therefore, by the drinking water in kettle body 1 be heated to setting temperature (such as 100 DEG C) used in the time be also It is known, the delay turn-off time of contact j2 is opened by normally closed be delayed of setting time relay, nothing in kettle body 1 can be prevented and drunk The dry combustion method phenomenon occurred when water.

Claims

1. a kind of electric kettle, including kettle body (1) and pedestal (2), the kettle body (1) is interior to be provided with for electrically heated resistor R and temperature sensor, the resistor R are connect by electric wire with attaching plug (3)；It is characterized by: the attaching plug (3) For the plug for protecting circuit with body leakage protection and anti-dry.

2. electric kettle according to claim 1, it is characterised in that: the body leakage protection and anti-dry protect circuit Including indicator light RD, intermediate relay K1, time relay K2, air switch QF；The firewire contact of the attaching plug (3) is inserted Column L, zero curve contact inserting column N are connect with the power input of the air switch QF respectively；The zero line output of air switch QF is touched Point is connect with one end of the resistor R, indicator light RD, intermediate relay coil K1 and time relay coil K2 respectively；Electricity The other end of resistance device R, indicator light RD and intermediate relay coil K1 pass through normally-closed contact Rt, the time relay by temperature sensor The series arm of contact j2, the point driving switch SB that heats up water composition is opened in the normally closed delay of device coil K2 and the firewire of air switch QF exports Contact connection；The firewire output contact that the other end of time relay coil K2 passes through heat up water point driving switch SB and air switch QF Connection；The normally opened contact j1 of the intermediate relay coil K1 and point driving switch SB that heats up water is to being in parallel.