CN2356724Y - Over-power consumption alarm for child's electric car - Google Patents

Abstract

The utility model relates to an over-electricity consumption alarm for a child's electric car. Subassemblies for detecting electricity comprise a constant voltage diode of which positive end is connected with the positive end of a battery voltage, a high resistor which is connected in series with the negative end of the constant voltage diode and a capacitor which is connected in parallel with the high resistor, and the capacitor and the other end of the resistor are connected with the negative end of the voltage. In a transistor switch circuit, the pole collecting end of a transistor is connected in series with a high resistor, the other end of the high resistor is connected with the positive end of the constant voltage diode in a detection circuit, and the pole shooting end of the transistor is connected with the negative end of the battery voltage. Output circuits are connected in series through two phase inverters, and the subassemblies of an oscillation circuit comprise two phase inverters which are connected in series. The utility model has the effect of electricity consumption alarm, and can remind a user to charge a battery in real time.

Description

Children's electric vehicle over-power proof alarming device

The utility model relates to a kind of children's electric vehicle over-power proof alarming device, especially refer to that a kind of voltage quasi position that utilizes detects, and then the power consumption alarming device of control children's electric vehicle, express the alarming device that storage battery has reached excessive power consumption degree in order to send alarm signal.

Normal children's electric car utilizes storage battery power supply to drive walking and plays, and all continuously on the known children's electric vehicle do not have an alarming device that the battery over-power proof is set, though acid virgin one is taken electric motor car and can be driven voluntarily and play, but because of it is not provided with the alarming device of over-power proof, so that power consumption is totally for the storage battery in the electric motor car, the head of a family and child's purport are not known, see that equipment is failure to actuate and but do not know because due to power supply exhausts, and storage battery sees that frequent power consumption excessively promptly has easy damage.And for example, children are if drive the electric motor car of being taken to the visual line of sight away from the head of a family, this moment the storage battery monarch on the electric car by chance power consumption totally can't travel, promptly can the modern head of a family and take the electric motor car driver and increase puzzlement on foot, so the caution of electric car when electric weight is not enough reminds the charge function salient pole important as can be known.

Main purpose of the present utility model promptly is to provide a kind of children's electric vehicle over-power proof alarming device, in order to remind occupant's storage battery to be about to electricity consumption totally, frost can be taken use again with the storage battery charging back beginning, to avoid the storage battery power consumption totally to derive many failure problems, more can improve the service efficiency of storage battery.

The purpose of this utility model is achieved in that a kind of children's electric vehicle over-power proof alarming device, the assembly of its detecting battery voltage circuit for detecting includes a Zener diode, its anode and battery voltage anode and joins, the high resistance that is connected in series with the Zener diode negative terminal, and the capacitor in parallel, and the negative terminal that is terminated at battery voltage in addition of this capacitor and resistance with this high resistance; Transistor switching circuit is that the collector terminal in triode is connected in series a high resistance, and this high-resistance end in addition joins with the Zener diode anode of circuit for detecting, and its triode emitter-base bandgap grading end then is connected to the negative terminal of battery voltage; Output circuit is connected in series by two phase inverters, and wherein the input of first phase inverter and triode collector terminal join, and the output of second phase inverter then can external other alarming devices; The assembly of oscillating circuit includes two phase inverters and is connected in series, by one of the output series connection of first phase inverter of output circuit diode forward, the anode of this diode is except that first phase inverter input with oscillating circuit joins, also engage simultaneously a charging capacitor and a high resistance, this high-resistance output of holding then cross-over connection in first phase inverter in addition, the end in addition of this capacitor then is connected to the negative terminal of battery voltage, and the output of this second phase inverter then is connected in series a LED caution indicator lamp.

The output of second phase inverter of this output circuit the external external sound official seal of other alarming devices.

Via technique scheme, can obviously learn, the excessive power consumption alarming device of anti-storage battery of the present utility model really has the effect of caution with the effect of LED caution indicator lamp, can remind the user that storage battery is charged, to improve the shortcoming that known children's electric motor vehicle is not provided with the warning circuit device in good time.

Below in conjunction with accompanying drawing and specific embodiments the utility model is described in further detail.

Fig. 1 is the circuit diagram of the utility model embodiment;

Fig. 2 is the block flow diagram of the utility model embodiment.

Referring to shown in Figure 1, the alarming device of the utility model embodiment is installed on the power supply supply positive and negative terminal of storage battery on the children's electric vehicle, exports whether be lower than its original voltage quasi position with the voltage of detecting storage battery; But circuit is formed summary and is divided into: a battery voltage part A.The accurate bit position B of one detecting battery voltage, a triode switch portion C, an output D and an oscillating circuit part E;

This battery voltage part A promptly refers to the battery voltage output, for the benefit of conveniently is described as follows the action situation of circuit, is example with the storage battery potential source with 6 volts now, but is not so inflexible limit claim of the present utility model.

This detecting battery voltage accurate bit position B, by a Zener diode (ZenerDiode), a high-impedance resistors, and a capacitor formed; Wherein, this Zener diode is operated in reverse bias, stretch when adding after revers voltage arrives its voltage stabilizing breakdown voltage greatly, and the electric current Zener diode of can flowing through, its subsequent conditioning circuit of then flowing through is done control; And high-impedance resistors and Zener diode negative terminal are connected in series, after the Zener diode collapse (this moment, Zener diode can be considered short-circuit condition), most reverse bias is put on this high-impedance resistors and with the capacitor that high-impedance resistors is connected in parallel, mainly be used as when stablizing the storage battery loop voltage.

This triode switch portion C, in the triode collector terminal high-impedance resistors that is connected in series, except be will with high-impedance resistors coupling in the detecting battery voltage accurate bit position B, it has more the advantage (this can make additional remarks again) that can reduce power consumption when the circuit operation order, and the main function of whole triode switch portion C promptly provides one to be equivalent to the function that press button has ON-OFF.

This output D is made up of two phase inverter D1, D2; This phase inverter has single input and single output, the input of its phase inverter D1 promptly joins with the triode collector terminal of aforementioned triode switch portion C, after the number of writing is entered by phase inverter D1 input, its phase inverter D1 output promptly produces anti-phase effect, and whether phase inverter D2 output can select external other alarming devices.

This oscillating circuit part E is by a general-purpose diode.One can be for the capacitor of charging.One is connected across the high-impedance resistors of phase inverter D3 input and output.One by one the phase inverter D4 that is connected in series with phase inverter D3 output, and LED caution indicator lamp form; Wherein, after the main function of this diode was used for preventing that the capacitor charging is saturated, the electric current that is discharged backwashed to output D, and causes misoperation to take place.

The circuit operation situation (cooperating shown in Figure 2) of the utility model children's electric vehicle over-power proof alarming device below is described respectively now:

One, utilizes the Zener diode (Zener Diode) that detects the accurate bit position B of battery voltage to detect battery voltage and whether be lower than 6 volts, when battery voltage is greater than or equal to 6 volts, its Zener diode has reached collapse (can be considered Zener diode and be short-circuit condition), flow through Zener diode electric current then with most of pressure drop across with high-impedance resistors that Zener diode is connected in series on, the small part pressure drop is then across between the triode base-emitter-base bandgap grading of triode switch portion C, cause triode switch and be the ON state at this moment, and the accurate pole tension of triode is negative (can be considered electronegative potential).

Two, because the triode collector volatge is for negative at this moment, so phase inverter D1 output promptly produces anti-phase effect and becomes a high potential in the output D, anti-phase effect through phase inverter D2 reverts to electronegative potential again again, so final output electronegative potential of output D, therefore can not move, promptly can't drive other alarming devices (as the external caution official seal or the sound) that are connected with output D.

Three, according to the output high potential of the above second phase inverter D1, the electric current diode of oscillating circuit part D of promptly flowing through then.Capacitor and arriving greatly forms a loop, and the high potential of phase inverter D1 output because of LED caution indicator lamp two ends belong to high potential with purport, is not sayed shinny so LED warns indicator lamp after the conversion of phase inverter D3 and D4.

Promptly know according to last opinion knot, when battery voltage is not lower than 6 volts of voltages, external other alarming devices (there are external words on the right side) of output mouth and the LED of oscillating circuit part E caution indicator lamp is neither can action, so the time storage battery on the children's electric vehicle be still abundance and be maintained the active power state.

Along with electric motor car travel time one long afterwards, the i.e. consume and slowly reduce its electric power gradually of storage battery electric power in the electric motor car does not reach 6 volts to battery voltage eventually.

Four, when the voltage of storage battery does not reach 6 volts, promptly can't be with the Zener diode collapse of the accurate bit position B of detecting battery voltage, this moment, this Zener diode can be considered open-circuit condition, and the voltage segment A of storage battery promptly as cross-over connection in the triode switch portion C, this moment promptly the flow through high-impedance resistors of triode switch portion C and the phase inverter D1 input of the output D that arrives of electric current, because of the triode switch portion C is connected in series this high-impedance resistors, the electric current of high-impedance resistors can be very small so flow through, and has the advantage that reduces power consumption.

Five, then the phase inverter D1 input of output D is high potential (is voltage for just), so anti-phase vessel output promptly is converted to electronegative potential, again through the anti-phase conversion of phase inverter D2, causing phase inverter D2 output is high potential, promptly move with external other alarming devices of output D this moment, sends signal (such as the tinkle of bells or other sounds) and reached excessive power consumption state with the storage battery of accusing; Certainly if promptly having this signal, no external other oath showing devices do not produce.

Six, go through anti-vivid device D3 with the electronegative potential of time phase inverter D1 output, become electronegative potential output after the D4 conversion, the capacitor of this oscillating circuit part E also charges, have a high low potential difference because of LED caution indicator lamp two ends this moment, so shinny chopsticks of LED caution indicator lamp, and after its capacitor charges to saturated discharge, the input of phase inverter D3 is accepted high potential signal input immediately, phase inverter D3 changes electronegative potential output again into, and phase inverter D4 output promptly changing into a high potential, LED caution this moment indicator lamp does not have potential difference because of two ends again, cause LED caution indicator lamp and extinguish, the main nationality of its whole current loop is connected in parallel on the high-impedance resistors of phase inverter D3 and a capacitor that is connected in series with phase inverter D3 input by cross-over connection and constantly discharges and recharges and cause LED to warn indicator lamp to be bright, the blink states of going out.

If seven the utility model output D select not external other alarming devices, can warn the blink states of indicator lamp by LED, learn that battery voltage is about to power consumption information totally.

Claims (2)

1, a kind of children's electric vehicle over-power proof alarming device, it is characterized in that: the assembly of detecting battery voltage circuit for detecting includes a Zener diode, its anode and battery voltage anode and joins, the high resistance that is connected in series with the Zener diode negative terminal, and the capacitor in parallel, and the negative terminal that is terminated at battery voltage in addition of this capacitor and resistance with this high resistance; Transistor switching circuit is that the collector terminal in triode is connected in series a high resistance, and this high-resistance end in addition joins with the Zener diode anode of circuit for detecting, and its triode emitter-base bandgap grading end then is connected to the negative terminal of battery voltage; Output circuit is connected in series by two phase inverters, and wherein the input of first phase inverter and triode collector terminal join, and the output of second phase inverter then can external other alarming devices; The assembly of oscillating circuit includes two phase inverters and is connected in series, by one of the output series connection of first phase inverter of output circuit diode forward, the anode of this diode is except that first phase inverter input with oscillating circuit joins, also engage simultaneously a charging capacitor and a high resistance, this high-resistance output of holding then cross-over connection in first phase inverter in addition, the end in addition of this capacitor then is connected to the negative terminal of battery voltage, and the output of this second phase inverter then is connected in series a LED caution indicator lamp.

2, as claim 1 a described children's electric vehicle over-power proof alarming device; It is characterized in that: the output of second phase inverter of this output circuit the external external sound official seal of other alarming devices.