CN204947666U - A kind of battery charge reminder device based on low-frequency oscillation - Google Patents

A kind of battery charge reminder device based on low-frequency oscillation Download PDF

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Publication number
CN204947666U
CN204947666U CN201520677805.XU CN201520677805U CN204947666U CN 204947666 U CN204947666 U CN 204947666U CN 201520677805 U CN201520677805 U CN 201520677805U CN 204947666 U CN204947666 U CN 204947666U
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China
Prior art keywords
electric capacity
negative pole
low
pin
pole
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Expired - Fee Related
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CN201520677805.XU
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Chinese (zh)
Inventor
刘霖
张树民
方晶敏
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Ningbo Momi Innovation Works Electronic Technology Co Ltd
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Ningbo Momi Innovation Works Electronic Technology Co Ltd
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Abstract

The utility model discloses a kind of battery charge reminder device based on low-frequency oscillation, by NAND gate A1, NAND gate A2, electric capacity C1, resistance R5, electric capacity C3, alarm B, bleeder circuit, switching circuit, and low-frequency oscillatory network composition; The utility model can send alarm signal when battery short of electricity, reminds people to charge to battery in time, avoids battery work under over-discharge state and affect its useful life.

Description

A kind of battery charge reminder device based on low-frequency oscillation
Technical field
The utility model relates to a kind of reminiscences, specifically refers to a kind of battery charge reminder device based on low-frequency oscillation.
Background technology
Now, various portable electronic products has goed deep into the life of people, becomes the important tool of people's amusement, study and work.The function of current portable electronic products gets more and more, but power consumption is also increasing, especially plays games at use equipment, power consumption is very big when seeing video; More have some electronic products to change battery, it is very inconvenient to use.For this problem, portable power source arises at the historic moment, and people can be charged to portable electronic products whenever and wherever possible.
Existing portable power source reserve of electricity is large, easy to carry, but the situation forgotten charging and cause portable power source to use happens occasionally, and this just affects the normal use of people to electronic product.Therefore, providing a kind of can remind people in time to the device that it charges when portable power source electric power is not enough, then can solve the problem.
Utility model content
The purpose of this utility model is to overcome the defect that existing battery does not possess charge reminder function, provides a kind of battery charge reminder device based on low-frequency oscillation.
The purpose of this utility model is achieved through the following technical solutions: a kind of battery charge reminder device based on low-frequency oscillation, by NAND gate A1, and NAND gate A2, electric capacity C1, resistance R5, electric capacity C3, alarm B, bleeder circuit, switching circuit, and low-frequency oscillatory network composition.
Further, the positive pole of described electric capacity C3 is connected with the output of NAND gate A4 after resistance R5, its negative pole is then connected with switching circuit, alarm B is then in parallel with electric capacity C3, the negative pole of electric capacity C1 is connected with switching circuit, its positive pole is then connected with the negative pole of NAND gate A1, the positive pole of described NAND gate A1 is all connected with low-frequency oscillatory network with its negative pole, its output then simultaneously the positive pole of NAND gate A2 be connected with negative pole; Described bleeder circuit is connected with battery, and switching circuit is then serially connected with between bleeder circuit and low-frequency oscillatory network.
Described low-frequency oscillatory network is by the chip U that vibrates, be serially connected in the resistance R4 between the DIS pin of vibration chip U and its THRE pin, the electric capacity C2 that THRE pin is connected, negative pole is then connected with switching circuit of positive pole and vibration chip U, and N pole forms with the diode D3 that OUT pin is connected, P pole is then connected with the negative pole of electric capacity C2 of the chip U that vibrates; The RE pin of described vibration chip U is all connected with switching circuit with VCC pin, and its OUT pin is then connected with the positive pole of its DIS pin and NAND gate A1 simultaneously, and its GND pin ground connection, TRIG pin is then connected with the negative pole of electric capacity C2.
Described bleeder circuit comprises resistance R1, potentiometer R2 and resistance R3; One end of described resistance R3 is simultaneously with the RE pin of vibration chip U and VCC pin is connected, its other end is then connected with the positive pole of battery, one end of resistance R1 is connected with the positive pole of battery, its other end is then connected with the negative pole of electric capacity C3 and the negative pole of battery after potentiometer R2 simultaneously, and the control end of described potentiometer R2 is then connected with switching circuit.
Described switching circuit is by triode VT1, triode VT2, the diode D1 that P pole is connected with the control end of potentiometer R2, N pole is then connected with the base stage of triode VT1, the diode D2 be serially connected between the collector electrode of triode VT1 and the base stage of triode VT2 form; The emitter of described triode VT1 is connected with the negative pole of electric capacity C3; The base stage of described triode VT2 is connected with the VCC pin of vibration chip U, and its collector electrode is then connected with the negative pole of electric capacity C2, its emitter is then connected with the negative pole of electric capacity C1.
Described vibration chip U is NE555 integrated chip.
The utility model comparatively prior art is compared, and has the following advantages and beneficial effect:
(1) the utility model can send alarm signal when battery short of electricity, reminds people to charge to battery in time, avoids battery work under over-discharge state and affect its useful life.
(2) the utility model structure is simple, and cost of manufacture is low, is applicable to wide model and promotes.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present utility model.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, the battery charge reminder device based on low-frequency oscillation of the present utility model, by NAND gate A1, NAND gate A2, electric capacity C1, resistance R5, electric capacity C3, alarm B, bleeder circuit, switching circuit, and low-frequency oscillatory network composition.
During connection, the positive pole of described electric capacity C3 is connected with the output of NAND gate A4 after resistance R5, its negative pole is then connected with switching circuit, alarm B is then in parallel with electric capacity C3, the negative pole of electric capacity C1 is connected with switching circuit, its positive pole is then connected with the negative pole of NAND gate A1, the positive pole of described NAND gate A1 is all connected with low-frequency oscillatory network with its negative pole, its output then simultaneously the positive pole of NAND gate A2 be connected with negative pole; Described bleeder circuit is connected with battery, and switching circuit is then serially connected with between bleeder circuit and low-frequency oscillatory network.
Wherein, bleeder circuit comprises resistance R1, potentiometer R2 and resistance R3.One end of resistance R1 is connected with the positive pole of battery, its other end is then connected with the negative pole of battery and the negative pole of electric capacity C3 after potentiometer R2 simultaneously, and the control end of described potentiometer R2 is then connected with switching circuit.One end of described resistance R3 is connected with low-frequency oscillatory network, its other end is then connected with the positive pole of battery.
The resistance of this resistance R1 and potentiometer R2 is 150K Ω, and the electric current flowing through resistance R1 and potentiometer R2 is very little, is only 0.1mA, although therefore resistance R1 and potentiometer R2 is connected in parallel on the two ends of battery for a long time, its power consumption is extremely low.
Described switching circuit is by triode VT1, triode VT2, the diode D1 that P pole is connected with the control end of potentiometer R2, N pole is then connected with the base stage of triode VT1, the diode D2 be serially connected between the collector electrode of triode VT1 and the base stage of triode VT2 form.The emitter of described triode VT1 is connected with the negative pole of electric capacity C3.The base stage of described triode VT2 is all connected with low-frequency oscillatory network with its collector electrode, its emitter is then connected with the negative pole of electric capacity C1.This switching circuit for detecting the voltage division signal of battery, and controls oscillating circuit.
Described low-frequency oscillatory network is by the chip U that vibrates, be serially connected in the resistance R4 between the DIS pin of vibration chip U and its THRE pin, the electric capacity C2 that THRE pin is connected, negative pole is then connected with the collector electrode of triode VT2 of positive pole and vibration chip U, and N pole forms with the diode D3 that OUT pin is connected, P pole is then connected with the negative pole of electric capacity C2 of the chip U that vibrates; The RE pin of described vibration chip U is all connected with the positive pole of battery with VCC pin after resistance R3, and its OUT pin is then connected with the positive pole of its DIS pin and NAND gate A1 simultaneously, and its GND pin ground connection, TRIG pin is then connected with the negative pole of electric capacity C2.In order to reach better implementation result, this vibration chip U is preferably NE555 integrated chip to realize.
When the electricity of battery is enough, the voltage of battery is higher, and the sampling voltage exported from the control end of potentiometer R2 is higher, triode VT1 and triode VT2 all conductings, its output low level, and low-frequency oscillatory network does not work; At this moment the positive pole of NAND gate A1 and negative pole input low level, its output then exports high level; The positive pole of NAND gate A2 and negative pole then input high level, its output then output low level, alarm B does not work.
Otherwise when the electricity of battery is too low, the voltage of battery is very low, the sampling voltage exported from the control end of potentiometer R2 is very low, and triode VT1 and triode VT2 ends, and low-frequency oscillatory network starts starting of oscillation; At this moment the positive pole of NAND gate A1 and negative pole input high level, its output then output low level; The positive pole of NAND gate A2 and negative pole then input low level, its output then exports high level, and alarm B starts to report to the police.
As mentioned above, just well the utility model can be implemented.

Claims (4)

1. based on a battery charge reminder device for low-frequency oscillation, by NAND gate A1, NAND gate A2, electric capacity C1, resistance R5, electric capacity C3, alarm B, bleeder circuit, switching circuit, and low-frequency oscillatory network composition; The positive pole of described electric capacity C3 is connected with the output of NAND gate A4 after resistance R5, its negative pole is then connected with switching circuit, alarm B is then in parallel with electric capacity C3, the negative pole of electric capacity C1 is connected with switching circuit, its positive pole is then connected with the negative pole of NAND gate A1, the positive pole of described NAND gate A1 is all connected with low-frequency oscillatory network with its negative pole, its output then simultaneously the positive pole of NAND gate A2 be connected with negative pole; Described bleeder circuit is connected with battery, and switching circuit is then serially connected with between bleeder circuit and low-frequency oscillatory network; It is characterized in that, described low-frequency oscillatory network is by the chip U that vibrates, be serially connected in the resistance R4 between the DIS pin of vibration chip U and its THRE pin, the electric capacity C2 that THRE pin is connected, negative pole is then connected with switching circuit of positive pole and vibration chip U, and N pole forms with the diode D3 that OUT pin is connected, P pole is then connected with the negative pole of electric capacity C2 of the chip U that vibrates; The RE pin of described vibration chip U is all connected with switching circuit with VCC pin, and its OUT pin is then connected with the positive pole of its DIS pin and NAND gate A1 simultaneously, and its GND pin ground connection, TRIG pin is then connected with the negative pole of electric capacity C2.
2. a kind of battery charge reminder device based on low-frequency oscillation according to claim 1, is characterized in that: described bleeder circuit comprises resistance R1, potentiometer R2 and resistance R3; One end of described resistance R3 is simultaneously with the RE pin of vibration chip U and VCC pin is connected, its other end is then connected with the positive pole of battery, one end of resistance R1 is connected with the positive pole of battery, its other end is then connected with the negative pole of electric capacity C3 and the negative pole of battery after potentiometer R2 simultaneously, and the control end of described potentiometer R2 is then connected with switching circuit.
3. a kind of battery charge reminder device based on low-frequency oscillation according to claim 2, it is characterized in that: described switching circuit is by triode VT1, triode VT2, the diode D1 that P pole is connected with the control end of potentiometer R2, N pole is then connected with the base stage of triode VT1, the diode D2 be serially connected between the collector electrode of triode VT1 and the base stage of triode VT2 form; The emitter of described triode VT1 is connected with the negative pole of electric capacity C3; The base stage of described triode VT2 is connected with the VCC pin of vibration chip U, and its collector electrode is then connected with the negative pole of electric capacity C2, its emitter is then connected with the negative pole of electric capacity C1.
4. a kind of battery charge reminder device based on low-frequency oscillation according to any one of claims 1 to 3, is characterized in that: described vibration chip U is NE555 integrated chip.
CN201520677805.XU 2015-09-02 2015-09-02 A kind of battery charge reminder device based on low-frequency oscillation Expired - Fee Related CN204947666U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520677805.XU CN204947666U (en) 2015-09-02 2015-09-02 A kind of battery charge reminder device based on low-frequency oscillation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520677805.XU CN204947666U (en) 2015-09-02 2015-09-02 A kind of battery charge reminder device based on low-frequency oscillation

Publications (1)

Publication Number Publication Date
CN204947666U true CN204947666U (en) 2016-01-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160106

Termination date: 20160902