The control circuit that a kind of disposable electric smoking set has battery low pressure alarming to indicate and control method thereofTechnical field
The present invention relates to a kind of disposable electric cigarette, specifically a kind of disposable electric smoking set control circuit of having battery low pressure alarming to indicate and control method thereof.
Background technology
Existing market segmentation has point chargeable and disposable two kinds of electronic cigarettes.Chargeable electronic cigarette cost is higher, can carry out repeatedly discharge and recharge to battery.Disposable electric cigarette cost is lower, as shown in Figure 1, the control circuit schematic diagram of disposable electric cigarette in conventional art, its control chip adopts application-specific integrated circuit, packing forms is SOT-23-6, and its LED foot control relay indicating light D, when consumer aspirates electronic cigarette, this lamp sends ruddiness, simulates smoke point and works sent out light.Disposable electric cigarette is battery full charging before dispatching from the factory, but due to the characteristic of self-discharge of battery, or terminal sale not in time, after a period of time, battery there will be low voltage, causes the situation that electronic cigarette can not aspirate or puff count is few, this situation cannot be predicted due to producer and terminal sale personnel, therefore client can return goods or complain, and causes client to reduce the purchase intention of this electronic cigarette, can affect prestige, the shipment amount of producer time serious further.During normal use, client cannot learn when battery electric quantity is used up, and is unfavorable for that client changes.
Therefore, require further improvement.
Summary of the invention
Object of the present invention aims to provide a kind of simplicity of design.Rational in infrastructure, can cell voltage be monitored, and at voltage lower than the disposable electric smoking set control circuit that has battery low pressure alarming to indicate of the instruction that gives during setting value to report to the police and control method thereof, to overcome weak point of the prior art.
The control circuit that a kind of disposable electric smoking set designed by this object has battery low pressure alarming to indicate, comprise control chip, control chip be provided with for electric current access power access end, for be connected with physical switch sampled signal input end, for exporting the output terminal driving electronic cigarette heating wire working current, the work indication end indicated for working and the earth terminal for control chip ground connection, its architectural feature control chip is also provided with the warning end for the instruction of battery low pressure alarming, and end of reporting to the police is connected with alarm lamp.
Described battery low-pressure settings is 3.8V-4.0V.
Described power access end is connected with the positive pole of battery, and sampled signal input end SW is connected with inductive switch, and output terminal is connected with heating wire, and indication end is connected with portable lamp.
An alarm method for the control circuit that disposable electric smoking set has battery low pressure alarming to indicate, it comprises the steps:
One, during electronic cigarette work, transient voltage when sampled signal input end disconnects is lower than battery low-pressure settings, and end energising of reporting to the police, the instant quick flashing of alarm lamp is to show warning.
Two, during electronic cigarette inoperative, the input voltage of power access end is lower than battery low-pressure settings, and end energising of reporting to the police, alarm lamp interval quick flashing is to show warning.
Described quick flashing number of times is 2-3 time, and described interval time is 1-2 hour.
The present invention has following beneficial effect:
After disposable electric cigarette dispatches from the factory, control chip is sample detecting cell voltage when standby, when voltage is lower than setting value, alarm lamp interval quick flashing, be conducive to producer, situation that terminal sale, client learn its electricity deficiency, producer, terminal sale can stop the outflow market of defective products, avoid the situation of client returns and complaint, are conducive to the prestige improving producer; Client also takes like a shot this function, by this function, when client in use learns that cell voltage is low by the warning of alarm lamp, has grace time to prepare to change, facilitates client to change use, improve its commercial value further.
Accompanying drawing explanation
Fig. 1 is the control circuit schematic diagram of disposable electric cigarette in conventional art.
Fig. 2 is the control circuit schematic diagram of one embodiment of the invention disposable electric cigarette.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
See Fig. 2, the control circuit that this disposable electric smoking set has battery low pressure alarming to indicate, comprise control chip, control chip be provided with for electric current access power access end VDD, for be connected with physical switch sampled signal input end SW, for exporting the output terminals A T driving electronic cigarette heating wire working current, the work indication end LED1 indicated for working and the earth terminal GND for control chip ground connection, control chip is also provided with the warning end LED2 for the instruction of battery low pressure alarming, the end LED2 that reports to the police is connected with alarm lamp D2.
Further, battery low-pressure settings is 3.8V-4.0V, according to actual design, and can preferred 3.8V or 4.0V.
Further, power access end VDD is connected with the positive pole Vin of battery, and sampled signal input end SW is connected with inductive switch SW1, and output terminals A T is connected with heating wire R1, and indication end LED1 is connected with portable lamp D1.
The alarm method of the control circuit that this disposable electric smoking set has battery low pressure alarming to indicate, it comprises the steps:
One, during electronic cigarette work, transient voltage when sampled signal input end SW disconnects is lower than battery low-pressure settings, and end LED2 energising of reporting to the police, the instant quick flashing of alarm lamp D2 is to show warning.
Two, during electronic cigarette inoperative, the input voltage of power access end VDD is lower than battery low-pressure settings, and end LED2 energising of reporting to the police, alarm lamp D2 interval quick flashing is to show warning.
Further, quick flashing number of times is 2-3 time, and described interval time is 1-2 hour.
In order to make it easy identification, portable lamp D1 adopts the LED of ruddiness, and alarm lamp D2 adopts the LED of gold-tinted or green glow.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., still belong within protection scope of the present invention.