CN2128991Y - Solar night safety lights for vehicles - Google Patents

Abstract

The utility model relates to a Solar energy night safety lamp for vehicles, which is suitable for illuminating vehicles such as bicycles and the like, wherein when a light source exists, a Solar panel receives light energy and converts the light energy into electric energy, and the battery is charged under the control of a circuit board device; when the light source does not exist, the Solar panel stops absorbing light energy, and the rechargeable battery is controlled by the circuit board to automatically emit electric energy, so that the LED is in a light-emitting state; it includes a casing, and its top has a transparent upper cover, and the front side is transparent panel, and there are solar panel and circuit board in the casing inside.

Description

The utility model relates to a solar night safety lamp for vehicles, in particular to a solar night safety lamp for vehicles which is suitable for bicycles or other vehicles and utilizes solar energy.

At present, most general bicycles are not equipped with lamps, so it is quite dangerous to ride a bicycle when the visibility is low or at night. In addition, although there are lamps on general bicycles or other vehicles, most of them are lamps that consume electric energy. controlled by humans.

The purpose of this utility model is to solve the above problems and provide a solar night safety light for vehicles that is economical and does not require human operation.

In order to achieve the above object, the utility model takes the following measures: the utility model utilizes solar energy as an energy source, and the photoelectric transducer is a solar panel, and the solar panel absorbs light energy during the day, charges the battery, and utilizes the energy of the battery when the light intensity weakens. The luminescent tube is made to emit light through the control circuit.

The solar night safety light of the utility model adopts the following structure, which includes: a solar energy safety light housing, a transparent upper cover is arranged on the top of the housing, and a transparent panel is covered on the front side of the housing, and a ventilation heat dissipation plate is provided on the back of the housing With the assembly hole seat, a switch is provided on the side of the housing; a solar panel that can receive light energy through the transparent upper cover, a light-emitting diode, and a rechargeable battery are arranged inside the housing; a solar panel that is connected to the solar panel , a circuit board device in which the light-emitting diode, battery and switch are connected, and a circuit that can charge the battery when the light source exists, and can make the electric energy of the battery supply the diode to emit light when the light intensity of the light source is weakened; the circuit includes Charging circuit, forced stop oscillation circuit, control circuit, oscillation circuit, resonance circuit, booster circuit.

The utility model has the following effects:

The solar night safety light for vehicles uses light energy as an energy source, which saves energy, especially electric energy, compared with general lighting lamps using batteries or other lighting lamps; It lights up or goes out automatically according to the change of natural light intensity, which is suitable for bicycles and other vehicles.

The preferred embodiment is described in detail as follows in cooperation with the diagram:

Figure 1: a perspective view of the utility model;

Figure 2: the back view of the utility model;

Figure 3: a sectional view of the utility model;

Fig. 4: the circuit diagram of the utility model;

Fig. 5: the charging circuit diagram of the utility model;

Figure 6: Sub-diagram of the forced stop oscillation circuit of the present invention;

Fig. 7: the sub-graph of the control circuit of the utility model;

Fig. 8: the oscillating circuit sub-graph of the utility model;

Fig. 9: the sub-graph of the resonant circuit of the present utility model;

Fig. 10: the step-up circuit diagram of the utility model;

As shown in Figures 1 to 3, the solar night safety light for vehicles provided by the utility model mainly includes a solar safety light housing (1), a transparent upper cover (11), and the front side of the housing (1) Cover a transparent panel (13), on the back (14) of the housing (1) there is a ventilating cooling plate (141) and an assembly hole seat (142) In addition, a switch (16) is provided on the side of the housing (1). A nut (143) is embedded in the assembly hole seat (142), so that the safety light can be locked together with the bicycle or the vehicle by cooperating with the screws.

A solar panel (12), a rechargeable battery E, a circuit board device (15) connected with the switch (16), the solar panel (12) and the battery E are arranged inside the casing (1), and a circuit board device (15) that can be placed When the battery seat where the battery E is placed is in the presence of a light source, the solar panel (12) receives light energy through the transparent upper cover (11) and converts it into electrical energy, and the battery E is charged through the control of the circuit board device (15). , the diode LED is in the extinguished state; and when the light source does not exist, the solar panel (12) stops absorbing light energy, and the rechargeable battery is controlled by the circuit board device (15) to automatically release electric energy to make the diode LED emit light.

As shown in Figures 4 to 10, it is the circuit of the solar night safety light for vehicles of the present utility model, which consists of a charging circuit (accompanying drawing 5), a forced stop oscillation circuit (accompanying drawing 6), a control circuit (accompanying drawing 7), an oscillation circuit (accompanying drawing 8), a resonant circuit (accompanying drawing 9), and a boost circuit (accompanying drawing 10).

By means of the charging circuit during the daytime or when the light source exists, the solar panel (12) absorbs light energy to generate a voltage, and the current charges the battery E through the diode S1 (please refer to accompanying drawing 5); As shown in accompanying drawing 6), the voltage is generated by the solar panel (12), which provides a voltage to the transistor T2 through the resistor R3 to enable the conduction of the transistor T2, and the conduction of the transistor T2 makes the base potential of the transistor T1 lower than the conduction voltage And cut off, so the light-emitting diode LED is in the extinguished state at this time.

Furthermore, by means of the control circuit (as shown in Figure 7), when the light source does not exist or the light intensity of the light source becomes weaker, the voltage of the solar panel (12) will also decrease accordingly, and the internal resistance will drop. In order to make the resistor R3 Obtaining a higher voltage and adding resistor R4 makes the voltage of the solar panel (12) lower than the voltage required by transistor T2, which can be supplemented by resistor R4, so that the oscillation circuit in this circuit device can be activated when the light intensity is very weak. Start to light up the diode LED; wherein the diode LED can emit light due to the oscillation circuit (as shown in Figure 8), the resonant circuit (as shown in Figure 9), and the boost circuit (as shown in Figure 10).

In the oscillating circuit (refer to Figure 8): the voltage passes through the resistor R1 and the resistor R2 to make the transistor T1 turn on, and after the turn on, the current of the resistor R1 flows through the collector of the transistor T1 to the emitter, so that the voltage of the resistor R1 drops and the resistor R2 Insufficient voltage is supplied to the transistor T1, which causes the transistor T1 to be turned off. When the transistor T1 is turned off, the voltage passes through the resistor R1 and the resistor R2 to make the transistor T1 turn on again and oscillate.

The resonant circuit (with reference to Figure 9) is: when the transistor T1 is turned on, the voltage of the resistor R1 drops to turn on the transistor T3, and the current flows from the emitter to the collector of the transistor T3, and also flows through the inductor L1, and the capacitor C1 is formed by The collector of transistor T3 obtains a positive voltage, which induces a negative voltage at the other pole, which immediately stops the conduction of transistor T1; the stop of transistor T1 causes the voltage of resistor R1 to rise, so that transistor T3 stops conducting, and the collector of transistor T3 immediately The negative voltage is induced by the inverse electromotive force of the inductor L1, and the other side of the capacitor C1 is then induced to generate a positive voltage, so that the transistor T1 is turned on again to generate resonance, so as to save power.

The step-up circuit (refer to FIG. 10 ) is as follows: when the inductor L1 is on and off, an inductive reactance effect is generated so that the two terminals of the inductor L1 generate an inductive reactance voltage higher than the original voltage, so that the diode LED emits light and is in a lighted state.

Claims (2)

1, a kind of vehicle solar energy night safe lamp is characterized in that:

It comprises a solar energy safety lamp housing, and its top is provided with a transparent upper cover, and cover cap transparent panel in housing front side has ventilation heating panel and pilot hole seat at the housing back, is provided with a switch in the housing side; Be provided with solar panels, a light-emitting diode, a rechargeable battery that can receive luminous energy in enclosure interior by described transparent upper cover, a pcb equipment that is connected with described solar panels, light-emitting diode, battery and switch also has a luminous circuit of the electric energy described light-emitting diode ELD of confession that can make described battery charge when light source exists, can make described battery when light source intensity dies down.

2, vehicle according to claim 1 solar energy night safe lamp, it is characterized in that: described circuit comprises charging circuit, forces failure of oscillations circuit, control circuit, oscillating circuit, resonant circuit, booster circuit;

Described charging circuit comprises described solar panels, diode S1, battery E, and described solar panels are transformed into electric energy with luminous energy and charge to battery E through diode S1;

The described failure of oscillations circuit that forces is made up of triode T2, resistance R 3 and solar panels; This circuit provides a voltage to make T2 conducting through resistance R 3 to transistor T 2 by the voltage of described solar panels, ends owing to the conducting of T2 makes transistor T 1 base potential difference be lower than its conducting voltage, and described LED is extinguished;

Described control circuit is made up of described solar panels and resistance R 4, promptly when light intensity dies down, improves the voltage that is added on transistor T 2 base stages by resistance R 4, makes described oscillating circuit work and begins to light described LED;

Described oscillating circuit comprises resistance R 1, R2 and transistor T 1, this circuit makes described cell voltage be added on the transistor T 1 through resistance R 1 and R2, and make its conducting, after the conducting since R1, R2 on change in voltage, resistance R 2 no enough voltages provide to transistor T 1, and T1 is ended, voltage is added in through R1, R2 and makes its conducting on the transistor T 1 and vibrate in succession;

Described resonant circuit comprises transistor T 1, T3 resistance R 2, capacitor C1 and inductance L 1; When transistor T 1 conducting, resistance R 1 voltage descends and makes transistor T 3 conductings, effect by capacitor C 1 ends transistor T 1, because R1 voltage rising transistor T 3 ends, effect owing to inductance L 1 makes capacitor C 1 two ends obtain making transistor T 1 conducting again with original opposite polarity again, and said process formation resonance repeatedly in proper order;

Described booster circuit comprises transistor T 3 inductance coil L1, because resonant circuit stops inductance L 1 one logical, and produces the induction reactance effect, makes inductance L 1 two ends produce the induction reactance voltage higher than primary voltage, and keeps described diode (LED) luminous.

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