CN203088730U

CN203088730U - Electric heating water boiler

Info

Publication number: CN203088730U
Application number: CN 201220696081
Authority: CN
Inventors: 罗国良; 吴家驹
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-14
Filing date: 2012-12-14
Publication date: 2013-07-31
Anticipated expiration: 2022-12-14

Abstract

The utility model relates to a water boiling tool, in particular to an electric heating water boiler, and aims to provide a novel electric heating water boiler which is capable of controlling boiling time and has the advantages of energy saving, safety, reliability, simple structure and convenience in use. The technical scheme includes that the electric heating water boiler comprises a heating base and a kettle placed on the heating base, the electric heating water boiler is characterized in that the kettle is made of iron-based materials, a heating circuit is mounted in the heating base and can generate an alternating magnetic field to heat the bottom of the kettle, one output end of a main power supply sequentially passes through a filter inductor L, a resonance circuit and a transistor Q and then is grounded in the heating circuit, the filter inductor L and the resonance circuit are further connected with a grounded filter capacitor C1, the other output end of the main power supply is grounded, and a main control circuit for controlling operation of the heating circuit is connected to a base electrode of the transistor Q.

Description

Electro-heat water boiler

Technical field

The utility model relates to a kind of instrument of heating up water, and specifically is a kind of electro-heat water boiler.

Background technology

When establishing water pot by cable and connecting power work, its inner resistive heating element heater can produce a large amount of heats, and is delivered to the working face of establishing water pot by cable carries out (working face is generally the metallic object of establishing water pot bottom by cable) to boil water after the coupling of insulation material.But establish water pot by cable and have following defective:

At first, insulating materials is in isolated power supply and metallic object, and also the transmission to heat has produced very big obstruction, and the efficient of electric heating conversion is lower, and waste of energy is serious.

Secondly, the water of establishing by cable in water pot should continue to heat a period of time (be controlled at and be advisable in 3 to 5 minutes) after boiling, reach the purpose of thoroughly boiling, so just can kill germ and virus in the water preferably, the content of nitrite that also can reduce hardness of water as best one can and reduce water; But can not realize time-delay control owing to establish the temperature controller of water pot by cable, water boiling back temperature controller just can be cut off the electricity supply immediately, is unfavorable for healthy after people drink.

In addition, establish water pot by cable and be connected with a pair of armature contact between the base by the kettle body, this armature contact is easy to generate electric spark when frequent the use, and electric spark can make and the oxidation corrode takes place between armature contact and damages, very easy accidents caused, have bigger potential safety hazard.

The utility model content

The purpose of this utility model is the deficiency that overcomes in the above-mentioned background technology, and a kind of novel electro-heat water boiler is provided, and it should have the function that can control boiling time, has energy saving simultaneously, safe and reliable, simple in structure and easy to use characteristics.

The technical solution of the utility model is: electro-heat water boiler, comprise heated base and be positioned over kettle body on the described heated base, it is characterized in that: described kettle body is that iron is made, and is equipped with in the described heated base can produce alternating magnetic field to heat the heater circuit of described kettle body bottom;

In the described heater circuit, an output of main power source is successively by ground connection behind the filter inductance L, resonance circuit, transistor Q, wherein also is connected with the filter capacitor C1 of ground connection between filter inductance L and the resonance circuit; Another output head grounding of main power source; Other has the governor circuit of a control heater circuit job to be connected to the base stage of transistor Q.

In the described governor circuit, an output of auxiliary power is connected to the base stage of transistor Q after by single-chip microprocessor MCU, and single-chip microprocessor MCU is also by ground connection behind detection module in parallel and the Operation display module; Another output head grounding of auxiliary power.

Described main power source and auxiliary power input insert 220V or 110V alternating current.

Described resonance circuit is made up of the heater coil LG and the capacitor C 2 of parallel connection.

Detection module comprises that several are installed on the heated base to detect the temperature sensor of kettle body bottom temp.

Operation display module is installed on the heated base, comprises display screen that shows kettle body bottom temp and the button of regulating boiling time.

The beneficial effects of the utility model are:

The utility model mainly is that to utilize electromagnetic induction principle to carry out to boil water, i.e. the eddy current heating drinking water that produces in kettle body bottom by alternating magnetic field, and electric conversion efficiency height not only, firing rate is fast, and energy saving; Simultaneously, the utility model is accurately controlled boiling time by governor circuit and temperature sensor, realizes the thorough boiling quote water, can guarantee people's drinking-water health better; In addition, without any optional feature, do not have naked light and electric current to produce during use between kettle body of the present utility model and the heated base, security is also good especially.

Description of drawings

Fig. 1 is a main TV structure schematic diagram of the present utility model.

Fig. 2 is the schematic diagram of the utility model heater circuit and governor circuit.

The specific embodiment

Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model is not limited to following examples.

As shown in Figure 1, electro-heat water boiler mainly comprises heated base 1 and is positioned over kettle body 2 on the heated base.The heater circuit that can produce alternating magnetic field is housed in the heated base.The kettle body uses iron to make, and so just can produce inductive loop under the effect of alternating magnetic field, and iron is generally stainless steel, enamel, iron aluminium complex or iron copper complex etc.Handle 2-1 also is housed on the kettle body.

In the heater circuit: the input termination 220V of main power source 1-1 or 110V alternating current; After an output of main power source is connected filter inductance L and resonance circuit (heater coil LG and capacitor C 2 in parallel) successively, be connected to the colelctor electrode of transistor Q, the grounded emitter of transistor Q; This output also passes through filter capacitor C1 ground connection after connecting filter inductance L; Another output head grounding of main power source; Heater coil LG in this resonance circuit is main power output element, produces alternating magnetic field thereby the higher-order of oscillation can take place during work.

The base stage of transistor Q also connects a governor circuit, is used for controlling heater circuit work.In this governor circuit, auxiliary power 1-2 input termination 220V or 110V alternating current (low-voltage DC that output is used for governor circuit); The output of auxiliary power 1-2 is connected to the base stage of transistor Q after by single-chip microprocessor MCU; Single-chip microprocessor MCU by detection module 1-3 in parallel and Operation display module 1-4 after ground connection; Another output head grounding of auxiliary power 1-2,

Transistor Q is an insulated gate bipolar transistor.

Detection module 1-3 is installed on the heated base, comprises that several are in order to detect the temperature sensor of kettle body bottom temp.Operation display module 1-4 also is installed on the heated base, comprises in order to display screen that shows kettle body bottom temp and the button of regulating boiling time.

Can more stably work for the assurance heater circuit, also can in heated base, install heat abstractor (for example fan) additional.

The equal buyable of electronic component in the utility model obtains.

Working method of the present utility model is as follows:

After heated base was connected power supply, main power source provided operating voltage for heater circuit, and auxiliary power 1-2 provides operating voltage for governor circuit.

When pressing start button, whether governor circuit at first detects the kettle body on the heated base (if the kettle body is placed on the heated base, can cause that then the electric current of heater circuit changes, single-chip microprocessor MCU just can judge in view of the above that the kettle body is whether on heated base).If the kettle body is placed on the heated base, single-chip microprocessor MCU is output signal turn-on transistor Q then, and heater circuit is connected back resonance circuit (heater coil LG) the beginning higher-order of oscillation and produced alternating magnetic field, and kettle body bottom produces eddy current and heats up beginning to boil water simultaneously.

When the temperature bottom temperature sensor detects the kettle body reaches predetermined temperature, single-chip microprocessor MCU continues to send signal works on heater circuit, and after satisfying the required time delay of thoroughly seething with excitement, single-chip microprocessor MCU is just sent signal at stop transistor Q, heater circuit quits work, end to boil water.

In process to boil water, if the user mentions the kettle body, can cause that the electric current of heater circuit changes, single-chip microprocessor MCU is judged the kettle body not on heated base after detecting variable signal, just cut off transistor Q automatically, disconnects heater circuit it is quit work; When temperature sensor detects transistor Q or kettle body bottom temp when too high, when perhaps single-chip microprocessor MCU detects electrical network and overvoltage occurs, single-chip microprocessor MCU also can be closed transistor Q automatically, treats that temperature or voltage recover just often transistor Q to be opened to work on again.

Claims

1. electro-heat water boiler, comprise heated base (1) and be positioned over kettle body (2) on the described heated base, it is characterized in that: described kettle body is that iron is made, and is equipped with in the described heated base can produce alternating magnetic field to heat the heater circuit of described kettle body bottom;

In the described heater circuit, an output of main power source (1-1) is successively by ground connection behind filter inductance L, resonance circuit and the transistor Q, wherein also is connected with the filter capacitor C1 of ground connection between filter inductance L and the resonance circuit; Another output head grounding of main power source; Other has the governor circuit of a control heater circuit job to be connected to the base stage of transistor Q.

2. electro-heat water boiler according to claim 1, it is characterized in that: in the described governor circuit, an output of auxiliary power (1-2) is connected to the base stage of transistor Q after by single-chip microprocessor MCU, and single-chip microprocessor MCU is also by the back ground connection of detection module (1-3) in parallel and Operation display module (1-4); Another output head grounding of auxiliary power.

3. electro-heat water boiler according to claim 2 is characterized in that: described main power source and auxiliary power input insert 220V or 110V alternating current.

4. electro-heat water boiler according to claim 3 is characterized in that: described resonance circuit is made up of the heater coil LG and the capacitor C 2 of parallel connection.

5. electro-heat water boiler according to claim 4 is characterized in that: detection module comprises that several are installed on the heated base to detect the temperature sensor of kettle body bottom temp.

6. electro-heat water boiler according to claim 5 is characterized in that: Operation display module is installed on the heated base, comprises display screen that shows kettle body bottom temp and the button of regulating boiling time.