CN201926030U

CN201926030U - Safety energy-saving electric heating box adopting key switch

Info

Publication number: CN201926030U
Application number: CN2011200290364U
Authority: CN
Inventors: 任永斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-17
Filing date: 2011-01-17
Publication date: 2011-08-10
Anticipated expiration: 2021-01-17

Abstract

The utility model provides a safety energy-saving electric heating box adopting a key switch, which is characterized in that the key switch is arranged below a foot pedal so that the foot pedal is lifted up under the action of self-weight rather than other external forces; a gap is formed between the foot pedal and a foot pedal support; and when the foot pedal is pressed downward by a foot, the gap between the foot pedal and the foot pedal support is reduced or eliminated. The user's foot acts on the foot pedal which then acts on the key switch, and then the key switch controls the work of the circuit of the heating box, so that the safety energy-saving electric heating box achieves the purpose of turning off the power supply when the user goes away. The safety energy-saving electric heating box is particularly suitable for children, the elderly people and the people who have a poor memory and frequently forget to turn off the power supply to the heating box.

Description

A kind of energy-saving safe electric heating that uses key switch case of warming oneself by a fire

Affiliated technical field

The utility model relates to a kind of energy-saving safe electric heating case of warming oneself by a fire, and uses key switch control a kind of energy-saving safe electric heating of break-make of case heat generating components electric current case of warming oneself by a fire of warming oneself by a fire in particular for body heating a kind of.

Background technology

At present, the electric heating case of warming oneself by a fire is popular in office space, town and country, family, does not particularly have the south of heater unit, when the people is cold, opens the warm oneself by a fire switch of case of electric heating, covers flexibly thermal insulation materials such as woollen blanket, and it is warm that people's health is just felt.General electric heating is warmed oneself by a fire case by heat-generating pipe, the aluminium reflecting plate, wooden case, pedal, compositions such as temperature regulation controller, have cheap, durable in use, advantage such as easy to use, but case generally is to regulate temperature level with temperature regulation controller because existing electric heating is warmed oneself by a fire, also have switch, if people forget the pass power supply, the oven temperature, of warming oneself by a fire is spent and is caused fire when high easily, annual just have a lot of by the electric heating fire that case causes of warming oneself by a fire at our county town, cause serious loss to family, our worker-family of unit because forget closes the electric heating case of warming oneself by a fire, all costly article of family have been burnt up after on fire, lost more than 90,000 yuan, forget in addition and close the electric heating case of warming oneself by a fire, valuable electric energy is also wasted, and it seems that case causes because electric heating is warmed oneself by a fire safety problem and waste problem can not be ignored, and need reliable safety and energy-conservation technology.

Summary of the invention

Dangerous and cause the shortcoming of waste of energy easily in order to overcome the existing case of warming oneself by a fire, the utility model proposes and use key switch to realize electric heating the warm oneself by a fire safety of case and the target of saves energy.

The technical scheme that its technical problem that solves the utility model adopts is:

1. key switch is installed below pedal, make pedal outside weight, not have effect following time of other external force by jack-up except self, between pedal and pedal support, form pedal and pedal support gap, when people's pin press foot pedal, pedal and pedal support gap smaller or disappearance.

2. form series circuit with key switch and AC power, temperature control damper, heat generating components, key switch is used as power switch in circuit, and during people's pin press foot pedal, key switch is connected power supply, when people's pin leaves, and the key switch deenergization.

3. key switch is used for control the silicon controlled circuits for triggering of temperature control damper, connect with potentiometer, and the contact of key switch is normal opened contact, when people's pin press foot pedal, key switch is connected, controllable silicon in the temperature control damper obtains trigger current, circuit working, but people's pin is when leaving pedal, key switch resets, contact disconnects, and controllable silicon quits work in the temperature control damper, and heat generating components is caloric value not.

Electric capacity in the thyristor gating circuit in key switch and the temperature control damper is in parallel 4., and the contact of key switch is a normally closed contact, when people's pin press foot pedal, key switch disconnects, and the controllable silicon in the temperature control damper obtains trigger current, circuit working, but when people's pin left pedal, key switch resetted, junction closure, controllable silicon can not be triggered and quit work in the temperature control damper, and heat generating components does not generate heat.

5. when the key switch spring strength is not enough, can install simultaneously in the case of warming oneself by a fire a plurality of key switches, being electrically connected of a plurality of key switches can be in parallel, also can be series connection.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is that the utility model key switch is arranged schematic diagram.

1. box bodies of warming oneself by a fire among the figure, 2. pedal, 3. pedal supports, 4. key switch, 5. key switch cap, 6. key switch pin, 7. pedal and pedal support gap.

Fig. 2 is that the utility model key switch is directly as power switch circuit figure.

4. key switches among the figure, 8. AC power, 9. temperature control damper, 10. heat generating components.

Fig. 3 is the utility model key switch normal opened contact control bidirectional triode thyristor circuits for triggering circuit diagrams.

Fig. 4 is the utility model key switch normally closed contact control bidirectional triode thyristor circuits for triggering circuit diagrams.

The specific embodiment

In the embodiment of Fig. 1, Fig. 2, Fig. 3, Fig. 4, we further specify the utility model as example to realize a kind of energy-saving safe electric heating that uses key switch case of warming oneself by a fire:

In Fig. 1, key switch 4 is installed in the box body 1 of warming oneself by a fire, the key switch cap 5 that makes key switch 4 is under the effect of key switch self spring, with pedal 2 jack-up, make and form a pedal and pedal support gap 7 between pedal support 3 and the pedal 2, when people's pin stepped down on the pedal 2, under the effect of the weight of people's pin, key switch was pressed, pedal and pedal support gap 7 reduce or disappear, be switched between the key switch pin 6, key switch 4 control circuit work are when people's pin leaves, key switch is once more pedal 2 jack-up, circuit disconnects, and heat generating components quits work, and has realized people's effect of energy-saving safe of going out of cocking off, during concrete enforcement, the spring intensity of key switch is selected suitably just, and is too little, misoperation easily, do not reach the purpose of safety electricity-saving, too big, people's pin is pressed painstakingly, can lose comfort.

In Fig. 2, key switch 4 direct and AC powers 8, temperature control damper 9, heat generating components 10 is formed series circuit, key switch 4 becomes power switch in fact, under the pressure of people's pin weight, key switch 4 is connected power supply, heat generating components 10 work, temperature control damper 9 is used for the voltage-regulation of heat generating components 10, realize the purpose of temperature adjustment, in the specific implementation, key switch 4 is selected not the key switch with the normal opened contact of auto-lock function, and operating current, voltage is wanted the requirement of coincident circuit, operating voltage is selected 220V, and operating current is greater than more than the 1A, and operating current can be determined according to the watt level of heat generating components 10.

In Fig. 3, the circuits for triggering of controllable silicon VS in the key switch 4 control temperature control dampers 9 (dotted line part), when the pin press foot pedal, key switch 4 is connected, carry at temperature control damper 9 under the situation of switch connection, electric current passes through resistance R, potentiometer W, key switch K2 charges to capacitor C, when voltage reaches certain value on the capacitor C, bidirectional trigger diode VD conducting, bidirectional triode thyristor is triggered, temperature control damper 9 is started working, heat generating components 10 heatings, its amount of heat is regulated by the potentiometer W in the temperature control damper 9, and in concrete enforcement, key switch 4 is selected not the key switch with the normal opened contact of self-locking, spring strength in the button meets the requirements just, because key switch is only controlled the silicon controlled trigger current, not high to power requirement, this connecting mode can prolong the life-span of key switch 4 greatly.

In Fig. 4, the circuits for triggering of controllable silicon VS in the key switch 4 control temperature control dampers 9 (dotted line part), when the pin press foot pedal, the normally closed node of key switch 4 disconnects, controllable silicon VS work in the temperature control damper 9, heat generating components 10 heatings, its amount of heat is regulated by the potentiometer W in the temperature control damper 9, when people's pin leaves, key switch resets, the normally closed contact closure is under the effect of the spring of key switch 4, pedal jack-up, making the silicon controlled bidirectional trigger diode and link voltage key switch 4 in the temperature control damper 9 is zero, controllable silicon is not triggered and does not work, and in concrete enforcement, key switch 4 is selected not the key switch with the normally closed contact of self-locking, spring strength in the button meets the requirements just, because key switch is only controlled the silicon controlled trigger current, not high to power requirement, can prolong life-span of key switch 4 like this.When a key switch spring strength is not enough, also can in the case of warming oneself by a fire, can install simultaneously a plurality of key switches, being electrically connected of a plurality of key switches can be in parallel, also can be series connection, the part key switch also can not electric connection.

Claims

1. an energy-saving safe electric heating that uses key switch case of warming oneself by a fire, it is characterized in that: key switch (4) is installed below pedal (2), what make that pedal (2) do not have other external force outside the weight except self does the time spent by jack-up, support formation pedal and pedal support gap (7) between (3) at pedal (2) and pedal, when people's pin press foot pedal (2), pedal and pedal support gap (7) diminish or disappear.

2. a kind of energy-saving safe electric heating that uses key switch as claimed in claim 1 case of warming oneself by a fire is characterized in that key switch (4) is formed series circuit with AC power (8), temperature control damper (9), heat generating components (10).

3. a kind of energy-saving safe electric heating that uses key switch as claimed in claim 1 case of warming oneself by a fire, it is characterized in that: the silicon controlled circuits for triggering in key switch (4) the control temperature control damper (9), connect with potentiometer, and the contact of key switch (4) is a normal opened contact.

4. a kind of energy-saving safe electric heating that uses key switch as claimed in claim 1 case of warming oneself by a fire, it is characterized in that: the electric capacity in the thyristor gating circuit in key switch (4) and the temperature control damper (9) is in parallel, and the contact of key switch (4) is a normally closed contact.

5. a kind of energy-saving safe electric heating that uses key switch as claimed in claim 1 case of warming oneself by a fire, it is characterized in that: a plurality of key switches have been installed in the case of warming oneself by a fire, and being electrically connected of a plurality of key switches can be in parallel, also can be series connection.