CN104883785A

CN104883785A - Circuit structure of emergency lamp

Info

Publication number: CN104883785A
Application number: CN201510284697.4A
Authority: CN
Inventors: 孙景春
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-05-26
Filing date: 2015-05-26
Publication date: 2015-09-02

Abstract

Disclosed is a circuit structure of an emergency lamp. The circuit structure comprises an input line, a detection port and a cell, wherein the input line and the detection port are electrically connected, the input line is provided with a switch signal detection circuit, and the switch signal detection circuit is electrically connected with the detection port and the cell. Compared to the prior art, in case of a power-on state, the emergency lamp can be directly switched on and switched off via a switch, and accordingly, the emergency lamp can be used as a common illuminating lamp; in case of a power-off state, an emergency illumination function can be realized, at the same time, on-off control can also be directly carried out through the switch, when the emergency lamp is not needed for illumination, the emergency lamp can be switched off through the switch, and accordingly, the emergency lamp is prevented from working continuously when the illumination does not have to be provided, such that the service time of the cell is increased, and compared to an emergency lamp in the prior art, by use of the circuit and the method provided by the invention, the cell can be used at a standby mode for one to two years.

Description

The circuit structure of emergency light

Technical field

The application belongs to lighting technical field, particularly relates to a kind of circuit structure of emergency light.

Background technology

At present, along with the lifting gradually of public's disaster reduction and prevention, people start also to install emergency light additional at home, in order to frequently only needing, but the circuit structure of the emergency light of prior art is all just applicable to install separately and be used alone, and just can only light when power-off, the common illuminating lamp heading straight for straight pass cannot be used as and uses, this adds increased the use cost of average family, and then cause emergency light to be generalizable; After power-off simultaneously, emergency light is in open mode always, and the electricity of battery can only maintain the emergency light work time of 1 ~ 2 hour, therefore service time is shorter, under the long-time situation had a power failure, cannot provide illumination.

Summary of the invention

The application provides one namely to can be used as emergency light for above problem and uses, can be used as again the circuit structure of the emergency light that general lighting lamp uses and service time is longer.

The application overcomes the above problems technical scheme used: a kind of circuit structure of emergency light, it comprises incoming line, detection port and battery, described incoming line is electrically connected with detection port, described incoming line is provided with switching signal testing circuit, and described switching signal testing circuit is all electrically connected with detection port and battery.

As preferably, described switching signal testing circuit comprises the first resistance, second resistance, 3rd resistance, electric capacity and diode, one end of the first described resistance is electrically connected with the pole in incoming line, the other end of the first resistance is electrically connected with one end of diode, the other end of described diode is electrically connected with battery, one end of the second described resistance is electrically connected with another pole in incoming line, the other end of the second resistance is all electrically connected with one end of control circuit and the 3rd resistance, the other end ground connection of the 3rd described resistance, described electric capacity and the 3rd resistor coupled in parallel are connected on circuit.

After adopting above structure, compared with prior art, the application has the following advantages: 1, due in the energized state, undertaken heading straight for Zhi Guan by Switch Controller emergency light, and then can be used as common illuminating lamp use; 2, under power down mode, the function of emergency lighting can be realized, simultaneously also directly carry out by switch the control that opens and closes, then when not needing emergency light to throw light on, can make to close emergency light by switch, and then prevent emergency light from going back continuous firing when not needing to provide illumination, thus increase the service time of battery, relative to the emergency light of prior art, can standby use 1 ~ 2 year by battery after the application's circuit and method.Therefore the application has and namely can be used as emergency light and use, can be used as again general lighting lamp use and service time longer feature.

Accompanying drawing explanation

Fig. 1 is the structural representation of the circuit structure of the application's emergency light.

As shown in the figure: 1, incoming line, 2, detection port, 3, battery, the 4, first resistance, the 5, second resistance, the 6, the 3rd resistance, 7, electric capacity, 8, diode.

Embodiment

Below in conjunction with drawings and the specific embodiments, the application is described further.

The circuit structure of a kind of emergency light as shown in Figure 1, it comprises incoming line 1, detection port 2 and battery 3 and (certainly also comprises other circuit structure, but owing to not relating to the application point that the application creates, therefore do not repeat them here, simultaneously also not shown in figures), described incoming line 1 is electrically connected with detection port 2, and described incoming line 1 is provided with switching signal testing circuit, and described switching signal testing circuit is all electrically connected with detection port 2 and battery 3.

Described switching signal testing circuit comprises the first resistance 4, second resistance 5, 3rd resistance 6, electric capacity 7 and diode 8, described one end of the first resistance 4 is electrically connected with the pole in incoming line 1, the other end of the first resistance 4 is electrically connected with one end of diode 8, the other end of described diode 8 is electrically connected with battery 3, described one end of the second resistance 5 is electrically connected with another pole in incoming line 1, the other end of the second resistance 5 is all electrically connected with one end of detection port 2 and the 3rd resistance 6, the other end ground connection of the 3rd described resistance 6, described electric capacity 7 and the 3rd resistance 6 are connected in parallel on circuit.

When extraneous electrical network has electricity and K switch 1 closes, by extraneous mains supply, K switch 1 directly can control the keying of light fixture, when extraneous grid cut-off and K switch 1 disconnects time, battery 3, diode 8D1, the first resistance 4R1, rectifier bridge D2, protective tube F1, the second resistance 5R2, the 3rd resistance 6R3 and composition closed-loop path, ground, now detect that the voltage of detection port 2AN1 is set to U1, but because of the characteristic of rectifier bridge D2, make the electric current flowing through the second resistance 5R2 and the 3rd resistance 6R3 relatively little, then now detect that the voltage of detection port 2AN1 is very low, so U1 ≈ 0V, and by this signal transmission to single-chip microcomputer, after analog-to-digital conversion, obtain an AD value be set to AD1, when extraneous grid cut-off and K switch 1 closes time, load R now in battery 3, diode 8D1, the first resistance 4R1, extraneous electrical network is total, the second resistance 5R2, the 3rd resistance 6R3 and composition closed-loop path, ground, the voltage at the detection port 2AN1 place now detected is assumed to be U2, and by signal transmission to single-chip microcomputer, after analog-to-digital conversion, obtain an AD value be set to AD2 wherein UD1 is the voltage drop at two pipe D1 two ends, pole 8, always in order to be connected in parallel on the summation of the miscellaneous equipment internal resistance in external power grid, (load in extraneous electrical network is thousands of for R, there is internal resistance larger, also there is internal resistance less, and because in parallel time, total resistance value is all less than any one value in parallel connection, so the total value of R can approximate zero, and ignore), be not difficult to find out AD2 > AD1 by as above formula, when extraneous grid cut-off, K switch 1 is in the state of disconnection, now microprocessor detect is AD1 to the value of detection port 2AN1, as now K switch 1 being adjusted to closed state, now microprocessor detect is AD2 to the value of detection port 2AN1, now AD2-AD1 > Δ, then single-chip microcomputer is to pwm circuit signal, and then open light fixture by battery 3 power supply, Δ is single-chip microcomputer inner setting constant, Δ sets according to the difference of light fixture resistance and (is usually less than 1V, this example is 0.6V, the sensitivity of the size impact judgement of Δ), and K switch 1 is in closed state when extraneous grid cut-off, now microprocessor detect is AD2 to the value of detection port 2AN1, as now K switch 1 being adjusted to the state of disconnection, now microprocessor detect is AD1 to the value of detection port 2AN1, now AD1-AD2 < Δ, then single-chip microcomputer is to pwm circuit signal, and then closedown load, and again K switch 1 is adjusted to closed state, single-chip microcomputer detects another AD2 value of detection port 2AN1 again, now AD2-AD1 > Δ, then single-chip microcomputer is to pwm circuit signal, and then open light fixture by battery 3 power supply.The misoperation that the setting of Δ value can also effectively prevent voltage fluctuation from causing.Also can be regarded as: when extraneous grid cut-off and K switch 1 is in off-state time, K switch 1 is closed can make battery 3 pairs of light fixtures power, and is opened by light fixture, after opening in light fixture, needs light fixture to close, only K switch 1 need be disconnected; And when extraneous grid cut-off and K switch 1 is in closure state time, again closedly after K switch 1 needs to disconnect battery 3 pairs of light fixtures just can be made to power, light fixture is opened.

Therefore the application can effectively avoid the emergency light when extraneous grid cut-off just to rise bright immediately, and in time really using illumination, the electricity of stand-by power supply battery discharges, by above-mentioned circuit structure and control method after extraneous grid cut-off, light fixture is in closed condition, if now need illumination, then need by-pass cock K1 once or twice, light fixture just can be opened, this just considerably increases light fixture stand-by time after a loss of power, also make the control of K switch 1 pair of light fixture can reach multiplexing effect simultaneously, when there being electricity, K switch 1 can head straight for Zhi Guan to light fixture, and when power is off, K switch 1 still can control the switch of light fixture.

Claims

1. the circuit structure of an emergency light, it comprises incoming line (1), detection port (2) and battery (3), described incoming line (1) is electrically connected with detection port (2), it is characterized in that: described incoming line (1) is provided with switching signal testing circuit, described switching signal testing circuit is all electrically connected with detection port (2) and battery (3).

2. the circuit structure of emergency light according to claim 1, it is characterized in that: described switching signal testing circuit comprises the first resistance (4), second resistance (5), 3rd resistance (6), electric capacity (7) and diode (8), one end of described the first resistance (4) is electrically connected with the pole in incoming line (1), the other end of the first resistance (4) is electrically connected with one end of diode (8), the other end of described diode (8) is electrically connected with battery (3), one end of described the second resistance (5) is electrically connected with another pole in incoming line (1), the other end of the second resistance (5) is all electrically connected with one end of detection port (2) and the 3rd resistance (6), the other end ground connection of the 3rd described resistance (6), described electric capacity (7) and the 3rd resistance (6) are connected in parallel on circuit.