CN2232116Y - Double timing controller for electric heating cooking utensils - Google Patents

Abstract

The utility model provides a double timing controller for electric heating cooking utensils, which is composed of two electrical timers. Contact sets of the electrical timers after being connected in series are connected in series with electric heating elements, the timing closing contact set is used for controlling timing electrification, the timing opening contact set is used for controlling timing service interruption, and electric motors of the two electrical timers are connected with a power supply. The utility model has the advantages of simple structure, reliable motion and easy use, and consumers can set the start time and the end time of heating optionally according to the requirements.

Description

Electric-heating cooking utensil plesichronous control device

The utility model relates to the timing means of electric-heating cooking utensil, relates in particular to the plesichronous control device that can control electric-heating cooking utensil timing power on/off or transfer power.

Electric-heating cooking utensil (as electric cooker, electric frying pan, electric pressure cooking saucepan) is owing to easy to use, clean hygiene are subjected to increasingly extensive welcome.The control device of existing electric-heating cooking utensil has control functions such as power control, temperature control usually, and some also has timing function.And this timing function is the individual event timing, promptly only can regularly open or powered-down.Its used timer normally adopts mechanical timer.Notification number is the utility model patent of 2071927. " electronics plesichronous auto-electronic pressure cookers " by name, a kind of technical scheme that realizes the plesichronous function with electronic timer is disclosed, its plesichronous circuit is made up of electronic component, realize the regularly function of power on/off by thyristor gating circuit and controllable silicon, therefore its technology is complicated, cost is higher, and consistency of product and reliability be cannot say for sure card.Now external (as the Hitachi, Ltd of Japan) produces a collection of electric-heating cooking utensil with computer control, and they can be crossed computer and control regularly energising and outage, and this scheme cost is very high, complex structure.

The purpose of this utility model provides a kind of electric-heating cooking utensil control device with plesichronous function.It can decide the time (outage is zero energy) of the zero-time and the gastronomical process power transfer of cooking heating according to user's needs in its sole discretion, and is simple in structure, uses reliable, very convenient and practical.

The purpose of this utility model is achieved in that electric-heating cooking utensil plesichronous control device, it is made of two electronic timers, their contact sets is connected with heating for being connected in series, one of them is the time closing contact sets, be used for regularly energising of control, another is regularly the break contact group, be used for regularly outage of control, the motor and the power supply of two electronic timers join, or motor one termination power of the electronic timer of the outage of control wherein, the other end is connected on the line that is connected in series of two contact sets.

The utility model will be further described below in conjunction with accompanying drawing:

Fig. 1 is an electrical block diagram of the present utility model;

Fig. 2 is the electrical block diagram of a kind of embodiment of the present utility model;

Fig. 3 is thyristor gating circuit figure among the embodiment.

With reference to the accompanying drawings 1, the motor T of electronic timer _M1Be connected motor T with power supply _M2An end and power supply join the timing break contact group J of the other end and its control ₂Movable contact connect.Motor T _M1The timer that the timer that is driven is regularly switched on for control, its contact sets J ₁Be the time closing contact sets, motor T _M2The timer that the timer that is driven regularly cuts off the power supply for control, its contact sets J ₂Be timing break contact group.Contact sets J ₁Movable contact and power supply join its fixed contact and contact sets J ₂Movable contact connect its fixed contact and heating R _LJoin.

According to Fig. 2, contact sets J ₃And J ₄Preferably all use the convertible contacts group, wherein contact sets J ₃Movable contact still be connected with power supply, two fixed contact respectively with one one cutter two-position switch K ₁Two fixed contacts connect.K switch ₁Movable contact and contact sets J ₄Movable contact connect.Contact sets J ₄Fixed contact in the timing break contact group is gone into end with an end of thyristor gating circuit and is connected, and the fixed contact in its time closing contact sets passes through K switch ₂Be connected with another input of thyristor gating circuit.At motor T _M2On the temperature detect switch (TDS) element of preferably connecting, such as serviceability temperature relay J U, this temperature relay JU is installed on the container of electric-heating cooking utensil.Thyristor gating circuit is controlled controllable silicon BCR conducting or is ended, thus the heating R on the control electric-heating cooking utensil _LPower on/off or the size of electric current.

According to Fig. 3, this is a kind of thyristor gating circuit commonly used, potentiometer W ₁And W ₂Be respectively its two inputs, by diac V, resistance R ₁, R ₂And capacitor C ₁, C ₂Constitute and trigger widely different road.Because potentiometer W ₁And W ₂Resistance value be adjustable, therefore can determine heating R _LThe size of power.

The circuit theory of Fig. 1 is such: after setting energising constantly, and motor T _M1The electronic timer that drives picks up counting; After the time of setting arrives, contact sets J ₁Closure, heating R _LThrough contact sets J ₂, J ₁With power connection, while motor T _M2The electronic timer that drives picks up counting, after the time of setting arrives, and contact sets J ₂Disconnect heating R _LOutage.

The circuit theory of Fig. 2 is such: after setting energising constantly, and motor T _M1The electronic timer that drives picks up counting, after the time of setting arrives, and contact sets J ₃Movable contact engage power supply and contact sets J with fixed contact in the time closing contact sets ₄Connect, and then connect thyristor gating circuit, make controllable silicon BCR conducting, heating R _LEnergising; When the vessel temp of electric-heating cooking utensil reaches certain temperature, temperature relay JU conducting, motor T _M2The electronic timer that drives picks up counting, after the time of setting arrives, and contact sets J ₄The merit contact engage with fixed contact in the time closing contact sets, if this moment is K switch ₂Disconnect, if then electric-heating cooking utensil outage is K switch ₂Closure is then passed through K switch ₂Enter another input of thyristor gating circuit, can control the electric-heating cooking utensil transfer power thus.As a cutter two-position switch K ₁Movable contact when engaging with another fixed contact, then circuit becomes a regularly control device of outage.Because common motor T _M1The setting-up time that the electronic timer that drives adopts is longer, and motor T _M2The setting-up time that the electronic timer that drives adopts is shorter, and this function can satisfy some heat time heating times of long timing needs.

The utility model adopts electronic timer, circuit by simple several electric elements compositions, can realize regularly the purpose of power on/off and timing transfer power, the consumer can decide the zero-time of heating as required in its sole discretion, power in dwell time and the heating process and conversion time thereof, whole apparatus structure is simple, reliable in action, and it is extremely convenient to use.

Claims (4)

1, electric-heating cooking utensil plesichronous control device, it is characterized in that being constituted by two electronic timers, after being connected in series, their contact sets connects with heating, one of them is the time closing contact sets, is used for regularly energising of control, and another is regularly the break contact group, be used for regularly outage of control, the motor and the power supply of two electronic timers join, or motor one termination power of the electronic timer of the outage of control wherein, and the other end is connected on the line that is connected in series of two contact sets.

2, be connected a controllable silicon and circuits for triggering thereof between the electric-heating cooking utensil plesichronous control device according to claim 1, the contact line that it is characterized in that being preferably in series connection and heating.

3, electric-heating cooking utensil plesichronous control device according to claim 2, it is characterized in that controlling the most handy convertible contacts group of timing break contact group of outage, an one fixed contact is connected with an input of thyristor gating circuit by a switch, another fixed contact is connected with another input of thyristor gating circuit by switch, and its movable contact is connected with the time closing contact sets of control energising.

4, electric-heating cooking utensil plesichronous control device according to claim 3, the time closing contact sets that it is characterized in that controlling energising is the convertible contacts group preferably, it is connected by the convertible contacts group of one one cutter two-position switch with the control outage, two fixed contacts that are it are connected with two fixed contacts of a cutter two-position switch, and the movable contact of a cutter two-position switch is connected with the movable contact of the convertible contacts group of control outage.

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