CN105425708A

CN105425708A - Active safety protection method and device for implementing same

Info

Publication number: CN105425708A
Application number: CN201510950439.5A
Authority: CN
Inventors: 张林军
Original assignee: GUIZHOU MEICHENG KAIHUI ELECTRICAL APPLIANCE MANUFACTURING Co Ltd
Current assignee: GUIZHOU MEICHENG KAIHUI ELECTRICAL APPLIANCE MANUFACTURING Co Ltd
Priority date: 2015-12-18
Filing date: 2015-12-18
Publication date: 2016-03-23

Abstract

The invention discloses an active safety protection method, relating to the technical field of equipment safety. The method comprises the following steps: A, presetting a relation between safety clock thresholds and control signals in a control chip; B, starting an electric heating equipment switch, and beginning counting by a safety clock; C, judging whether a control signal is input to the control chip or not; D, when a control signal is input to the control chip, resetting the safety clock, and counting again; E, if no control signal is input to the control chip, continuously accumulating the number of the safety clock; F, when the number in the safety clock is accumulated to each threshold, executing a preset control instruction matched with each threshold by the control chip; G, repeating steps B-F; and H, if the clock threshold reaches a limit value, sending out a circuit turn-off signal by the control chip. An active safety protection device for implementing the method comprises a control chip and a safety clock. The method and the device can be widely applied to electric heating equipment, can greatly reduce safety accidents caused by the electric heating equipment, and can further achieve the effects of saving energy and reducing consumption to a certain extent.

Description

Active safety guard method and realize the device of the method

Technical field

The present invention relates to device security technical field, be specifically related to for the active safety protection system device in heating equipment.

Background technology

Electrical Safety is always the field paid close attention to emphatically in home appliance, especially heating equipment field.Time have report, electric blanket causes fire because service time is long; Electric heater is not closed for a long time because people left and catches fire; Electrothermal furnace, causes disaster accident because of not timely powered-down.In prior art, security system device not established by some heating equipments, and it is fool proof, all method for security protection heating equipment being adopted to passive type, its device adopts thermal sensor or probe one or several position of heating equipment to be carried out to monitoring and the measurement of temperature, when temperature exceedes a certain numerical value, control device sends the signal of powered-down, the safety system of this class, reach capacity when heating equipment or carry out powered-down close to just passive during ultimate value, now, may cause irreversible damage to heating equipment or environment for use, affect use and the life-span of heating equipment, more seriously, may cause immeasurable loss to environment for use and peripheral facility and personal safety.Meanwhile, when the less of monitoring temperature point design or not too science when, the spot temperature that do not monitor raises, and can not control in time, very easily form potential safety hazard, may cause fire.

Summary of the invention

For solving the safety system in prior art, heating equipment all being adopted to passive type; thus cause the generation of security incident or there is the technical matters of potential safety hazard, the invention provides and be a kind ofly exclusively used in the active safety guard method of heating equipment and realize the system and device of the method.

Active safety guard method, comprises and accepts step:

Preset security clock threshold values and control signal relation in A, control chip;

B, heating equipment are switch activated, and secure clock starts counting;

Whether C, control chip have the input of manipulation signal;

D, have control chip manipulate signal input, then secure clock reset, and restart counting;

E, as control chip without manipulation signal input, secure clock continues accumulated counts;

F, when the count accumulation in secure clock is to each threshold values, then control chip performs the manipulation instruction preset and match with each threshold values;

G, repetition step B-F;

If when H clock threshold values reaches default ultimate value, control chip sends shut-off circuit signal.

Threshold values and a certainly need the time value performing specific manipulation instruction is artificial setting.As needed at 30 minutes places with regard to the first time safe operation of secure clock, then now, control chip sends the first safe operation instruction.

Active safety protective device, it is characterized in that: comprise control chip, secure clock, described control chip receives button or other input instructions of heating equipment operating personnel, when control chip receives peripheral operation steering order at every turn, then send a signal to secure clock, the time of secure clock resets, and restarts counting; When secure clock counting reaches threshold values, the control signal that control chip will send corresponding to this threshold values, if clock numerical value continues to become large, then control chip sends corresponding steering order, until clock reaches mxm., control chip sends power-off signal.

Under normal state, people has the thinking of inertia, progressively adapts to and ignore for residing environment, thus no longer pay close attention to current environment, then when initiatively leaving environment, the closedown of heating equipment may be forgotten, and when passive leave environment time, likely can have no time close heating equipment; And now in society, along with each factors vary such as environment things, senile dementia patients progressively increases, and when this specific group does not have condition to carry out appropriate artificial treatment time, the safety practice that the active safety feature of heating equipment just necessitates.The present invention can be widely used in heating equipment facility, can greatly reducing the security incident incidence caused because using heating equipment, can also reach energy-saving and cost-reducing effect to a certain extent.

Accompanying drawing explanation

Fig. 1 active safety guard method process flow diagram.

Embodiment

Below in conjunction with accompanying drawing, invention is described in further detail.

This aggressive device is adopted to carry out the protection of heating equipment; simultaneously; also comprise passive heating equipment protective device; described passive heating equipment protective device, comprises temperature sensor, the preset temperature margin of safety in control chip; the signal of temperature sensor sends control chip to; the signal of temperature sensor is converted to temperature and compares with preset value by control chip, and when meeting or exceeding preset value, control chip sends the shutdown signal of heating equipment.Adopt active and the passive pattern combined, the two can be made to have complementary advantages, reduce the potential safety hazard using the accidents such as heating equipment generation fire greatly.

As in the active safety guard method in the present invention, whether described secure clock value reaches that pre-set threshold value undertaken judging by control chip; Secure clock value sends to control chip by fixed frequency, and clock value and preset value contrast by control chip, and then determines whether to need to send steering order.

For reducing the signal transmission between secure clock and control chip, then when secure clock is arranged, directly using threshold values as clock transfer signal to the condition of control chip, control chip only needs to contrast the signal transmitted, and heating equipment is reduced exporting or closing.

Presetting for control chip, because of different heating equipments, the gate time of required secure clock is different, default link then in the present invention can be arranged voluntarily by specifically using producer, then described control chip reserves pin specially, receive interim presetting, and the value that input is come in is assigned to the preset value in control chip.Slightly large-scale electric heating equipment, for electric heater, described threshold values can be designed to 3 hours downshifts respectively, then sends shutdown signal after an hour.

For making user's Timeliness coverage gear change, described active safety protective device also comprises alarm set, and the reduction output sent by control chip or shutdown signal make described alarm set send alerting signal.

Protection scope of the present invention is not limited only to the technical scheme disclosed in embodiment part; all utilize manipulation signal reset secure clock, secure clock stored count reach threshold values then control chip send the technical scheme that right reduction exports, closes the signals such as heating equipment, all fall into protection scope of the present invention.

Claims

1. active safety guard method, comprises the steps:

B, heating equipment are switch activated, and secure clock starts counting;

Whether C, control chip have the input of manipulation signal;

G, repetition step B-F;

When if H clock threshold values reaches the limit values, now, control chip sends shut-off circuit signal.

2. according to the active safety guard method described in claim 1, it is characterized in that: whether described secure clock value reaches pre-set threshold value is judged by control chip; Secure clock value sends to control chip by fixed frequency, and clock value and preset value contrast by control chip, and then determines whether to need to send steering order.

3. according to the active safety guard method described in claim 1; it is characterized in that: when secure clock is arranged; directly using threshold values as clock transfer signal to the condition of control chip, control chip only needs to contrast the signal transmitted, by heating equipment reduce export or close.

4. realize the active safety protective device of method in the arbitrary claim of Claim 1-3, it is characterized in that: comprise control chip, secure clock, described control chip receives button or other input instructions of heating equipment operating personnel, when control chip receives peripheral operation steering order at every turn, then send a signal to secure clock, the time of secure clock resets, and restarts counting; When secure clock counting reaches threshold values, the control signal that control chip will send corresponding to this threshold values, if clock numerical value continues to become large, then control chip sends corresponding steering order, until clock reaches mxm., control chip sends power-off signal.

5. active safety protective device according to claim 4; it is characterized in that: also comprise passive heating equipment protective device; described passive heating equipment protective device; comprise temperature sensor; preset temperature margin of safety in control chip, the signal of temperature sensor sends control chip to, and the signal of temperature sensor is converted to temperature and compares with preset value by control chip; when meeting or exceeding preset value, control chip sends the shutdown signal of heating equipment.

6. active safety protective device according to claim 5, is characterized in that: described control chip reserves pin specially, receives and presets temporarily, and the value that input is come in is assigned to the preset value in control chip.

7. active safety protective device according to claim 6, is characterized in that: electric heater is example, and described threshold values can be designed to respectively reduce for 30 minutes and export, and sends shutdown signal after three hours.

8. active safety protective device according to claim 7, is characterized in that: described active safety protective device also comprises alarm set, and the reduction output sent by control chip or shutdown signal make described alarm set send alerting signal.