A construction work lighting circuit

Abstract

The utility model discloses a kind of construction engineering lighting circuit, it is related to lighting field, and the construction engineering lighting circuit includes: switch control module, for driving lighting lamp work module work or not;Lighting lamp work module, for lighting lamp light illumination;Voltage control module, for controlling the voltage size when lighting lamp works;PWM output module, for by adjusting variable PWM signal, to control the working state of voltage control module;Switch control module connects lighting lamp work module, lighting lamp work module connects voltage control module, PWM output module connects voltage control module;Compared with prior art, the beneficial effects of the utility model are: the utility model is by PWM output module, adjusts the different PWM signal of output, to control voltage control module, finally change the voltage size when lighting lamp works, change the luminous intensity of lighting lamp, control high voltage using low voltage, safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of lighting, specifically a lighting circuit for building engineering. Background Technology

[0002] A lighting circuit is a circuit used for lighting, consisting of a power supply, a switch, lamps, and wires. The power supply is the core component, providing electrical energy to the lamps. The switch is a device that controls the operation of the lamps. Lamps are devices that convert electrical energy into light energy; common examples include light bulbs, fluorescent tubes, and LED lights.

[0003] During construction projects, different building environments (such as underground, caves, etc.) will result in different requirements for lighting brightness, which need to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a lighting circuit for building engineering to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A lighting circuit for building engineering, comprising: The switch control module is used to control whether the lighting module is working or not. Lighting module for emitting light; The voltage control module is used to control the voltage level when the lighting lamp is working; The PWM output module is used to control the operating state of the voltage control module by adjusting the variable PWM signal. The switch control module is connected to the lighting module, the lighting module is connected to the voltage control module, and the PWM output module is connected to the voltage control module.

[0006] As a further embodiment of this utility model: the switch control module includes a switch S2, a relay J1, a diode D1, and a power supply voltage VCC. One end of the switch S2 is connected to the power supply voltage VCC, and the other end of the switch S2 is connected to one end of the relay J1 and the negative terminal of the diode D1. The other end of the relay J1 is grounded, and the positive terminal of the diode D1 is grounded.

[0007] As a further embodiment of this utility model: the lighting module includes a switch S1, a fuse FU1, a lighting lamp X, a rectifier T, a live wire L, and a neutral wire N. One end of the switch S1 is connected to the live wire L, and the other end of the switch S1 is connected to one end of the fuse FU1. The other end of the fuse FU1 is connected to the first end of the rectifier T. The second and fourth ends of the rectifier T are connected to the voltage control module. The third end of the rectifier T is connected to one end of the lighting lamp X, and the other end of the lighting lamp X is connected to the neutral wire N.

[0008] As a further embodiment of this utility model: the voltage control module includes a resistor R1, a capacitor C1, a silicon controlled rectifier Z1, a resistor R2, a capacitor C2, a resistor R3, and a silicon controlled rectifier Z2. One end of the resistor R1 is connected to the positive terminal of silicon controlled rectifier Z1, the positive terminal of silicon controlled rectifier Z2, and the fourth terminal of rectifier T. The other end of the resistor R1 is connected to one end of capacitor C1, the negative terminal of silicon controlled rectifier Z1, and one end of resistor R2. The control terminal of silicon controlled rectifier Z1 is connected to the PWM output module. The other end of the resistor R2 is connected to one end of capacitor C2 and one end of resistor R3. The other end of the resistor R3 is connected to the control terminal of silicon controlled rectifier Z2. The negative terminal of silicon controlled rectifier Z2 is connected to the other end of capacitor C2, the other end of capacitor C1, and the second terminal of rectifier T.

[0009] As a further embodiment of this utility model: the PWM output module includes an inverter U1, an inverter U2, a diode D1, a diode D2, a potentiometer RP1, a capacitor C3, and a power supply voltage VCC. The power supply terminal of the inverter U1 is connected to the power supply voltage VCC and the power supply terminal of the inverter U2. The input terminal of the inverter U1 is connected to the negative terminal of the diode D1, one end of the capacitor C3, and the positive terminal of the diode D2. The positive terminal of the diode D1 is connected to one end of the potentiometer RP1, and the other end of the potentiometer RP1 is connected to the negative terminal of the diode D2. The sliding terminal of the potentiometer RP1 is connected to the output terminal of the inverter U1 and the input terminal of the inverter U2. The output terminal of the inverter U2 is connected to the other end of the capacitor C3 and the voltage control module.

[0010] Compared with the prior art, the beneficial effects of this utility model are: this utility model uses a PWM output module to adjust the output of different PWM signals to control the voltage control module, and finally changes the voltage of the lighting lamp when it is working, thereby changing the brightness of the lighting lamp. It uses low voltage to control high voltage, which is safe and reliable. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a lighting circuit for architectural engineering.

[0012] Figure 2 This is a circuit diagram for a building lighting circuit.

[0013] Figure 3 This is the circuit diagram of the PWM output module. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1 A lighting circuit for building engineering, comprising: The switch control module is used to control whether the lighting module is working or not. Lighting module for emitting light; The voltage control module is used to control the voltage level when the lighting lamp is working; The PWM output module is used to control the operating state of the voltage control module by adjusting the variable PWM signal. The switch control module is connected to the lighting module, the lighting module is connected to the voltage control module, and the PWM output module is connected to the voltage control module.

[0016] In this embodiment: Please refer to Figure 2 The switch control module includes switch S2, relay J1, diode D1, and power supply voltage VCC. One end of switch S2 is connected to the power supply voltage VCC, and the other end of switch S2 is connected to one end of relay J1 and the negative terminal of diode D1. The other end of relay J1 is grounded, and the positive terminal of diode D1 is grounded.

[0017] After switch S2 is closed, relay J1 is energized and starts working, control switch S1 closes, and the lighting module starts working.

[0018] In this embodiment: Please refer to Figure 2 The lighting module includes a switch S1, a fuse FU1, a lighting lamp X, a rectifier T, a live wire L, and a neutral wire N. One end of the switch S1 is connected to the live wire L, and the other end of the switch S1 is connected to one end of the fuse FU1. The other end of the fuse FU1 is connected to the first end of the rectifier T. The second and fourth ends of the rectifier T are connected to the voltage control module. The third end of the rectifier T is connected to one end of the lighting lamp X, and the other end of the lighting lamp X is connected to the neutral wire N.

[0019] After switch S1 is closed, the circuit is formed by the live wire L - switch S1 - fuse FU1 - first terminal of rectifier T - fourth terminal of rectifier T - thyristor Z2 - second terminal of rectifier T - third terminal of rectifier T - and lighting lamp X (the current flows from the live wire L to the neutral wire N, and vice versa), and lighting lamp X emits light.

[0020] In this embodiment: Please refer to Figure 2The voltage control module includes resistor R1, capacitor C1, thyristor Z1, resistor R2, capacitor C2, resistor R3, and thyristor Z2. One end of resistor R1 is connected to the positive terminal of thyristor Z1, the positive terminal of thyristor Z2, and the fourth terminal of rectifier T. The other end of resistor R1 is connected to one end of capacitor C1, the negative terminal of thyristor Z1, and one end of resistor R2. The control terminal of thyristor Z1 is connected to the PWM output module. The other end of resistor R2 is connected to one end of capacitor C2 and one end of resistor R3. The other end of resistor R3 is connected to the control terminal of thyristor Z2. The negative terminal of thyristor Z2 is connected to the other end of capacitor C2, the other end of capacitor C1, and the second terminal of rectifier T.

[0021] When voltage is input, capacitor C2 is charged through resistor R1, silicon controlled rectifier Z1, and resistor R2. When the capacitor is charged to a high level, silicon controlled rectifier Z2 is triggered to conduct through resistor R3, thus forming a circuit in which the lighting lamp X is located, and the lighting lamp X works. By changing the charging speed of capacitor C2, the specific conduction ratio of silicon controlled rectifier Z2 in one cycle of AC power is controlled, thereby controlling the voltage on the lighting lamp X. By controlling the conduction frequency of silicon controlled rectifier Z1, the impedance of the charging path of capacitor C2 is changed.

[0022] In this embodiment: Please refer to Figure 3 The PWM output module includes inverter U1, inverter U2, diode D1, diode D2, potentiometer RP1, capacitor C3, and power supply voltage VCC. The power supply terminal of inverter U1 is connected to the power supply voltage VCC and the power supply terminal of inverter U2. The input terminal of inverter U1 is connected to the negative terminal of diode D1, one end of capacitor C3, and the positive terminal of diode D2. The positive terminal of diode D1 is connected to one end of potentiometer RP1, and the other end of potentiometer RP1 is connected to the negative terminal of diode D2. The sliding terminal of potentiometer RP1 is connected to the output terminal of inverter U1 and the input terminal of inverter U2. The output terminal of inverter U2 is connected to the other end of capacitor C3 and the voltage control module.

[0023] Initially, capacitor C3 is at a low level, the input of inverter U1 is at a low level, and the output is at a high level. Capacitor C3 is charged through the left end of the sliding terminal of potentiometer RP1 and diode D1. When it is charged to a high level, inverter U1 outputs a low level, and capacitor C3 discharges through diode D2 and the right end of the sliding terminal of potentiometer RP1. By adjusting the position of the sliding terminal of potentiometer RP1, the charging and discharging speed of capacitor C3 is changed, which ultimately changes the duty cycle of the generated PWM signal.

[0024] The working principle of this utility model is as follows: the switch control module is used to drive the lighting module to work or not; the lighting module is used to illuminate the light; the voltage control module is used to control the voltage when the lighting is working; and the PWM output module is used to control the working state of the voltage control module by adjusting the variable PWM signal.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lighting circuit for architectural engineering, characterized in that: The lighting circuit for this building project includes: The switch control module is used to control whether the lighting module is working or not. Lighting module for emitting light; The voltage control module is used to control the voltage level when the lighting lamp is working; The PWM output module is used to control the operating state of the voltage control module by adjusting the variable PWM signal. The switch control module is connected to the lighting module, the lighting module is connected to the voltage control module, and the PWM output module is connected to the voltage control module.

2. The building lighting circuit according to claim 1, characterized in that, The switch control module includes switch S2, relay J1, diode D1, and power supply voltage VCC. One end of switch S2 is connected to the power supply voltage VCC, and the other end of switch S2 is connected to one end of relay J1 and the negative terminal of diode D1. The other end of relay J1 is grounded, and the positive terminal of diode D1 is grounded.

3. The building lighting circuit according to claim 1, characterized in that, The lighting module includes a switch S1, a fuse FU1, a lighting lamp X, a rectifier T, a live wire L, and a neutral wire N. One end of the switch S1 is connected to the live wire L, and the other end of the switch S1 is connected to one end of the fuse FU1. The other end of the fuse FU1 is connected to the first end of the rectifier T. The second and fourth ends of the rectifier T are connected to the voltage control module. The third end of the rectifier T is connected to one end of the lighting lamp X, and the other end of the lighting lamp X is connected to the neutral wire N.

4. The building lighting circuit according to claim 3, characterized in that, The voltage control module includes resistor R1, capacitor C1, thyristor Z1, resistor R2, capacitor C2, resistor R3, and thyristor Z2. One end of resistor R1 is connected to the positive terminal of thyristor Z1, the positive terminal of thyristor Z2, and the fourth terminal of rectifier T. The other end of resistor R1 is connected to one end of capacitor C1, the negative terminal of thyristor Z1, and one end of resistor R2. The control terminal of thyristor Z1 is connected to the PWM output module. The other end of resistor R2 is connected to one end of capacitor C2 and one end of resistor R3. The other end of resistor R3 is connected to the control terminal of thyristor Z2. The negative terminal of thyristor Z2 is connected to the other end of capacitor C2, the other end of capacitor C1, and the second terminal of rectifier T.

5. The building lighting circuit according to claim 1, characterized in that, The PWM output module includes inverter U1, inverter U2, diode D1, diode D2, potentiometer RP1, capacitor C3, and power supply voltage VCC. The power supply terminal of inverter U1 is connected to the power supply voltage VCC and the power supply terminal of inverter U2. The input terminal of inverter U1 is connected to the negative terminal of diode D1, one end of capacitor C3, and the positive terminal of diode D2. The positive terminal of diode D1 is connected to one end of potentiometer RP1, and the other end of potentiometer RP1 is connected to the negative terminal of diode D2. The sliding terminal of potentiometer RP1 is connected to the output terminal of inverter U1 and the input terminal of inverter U2. The output terminal of inverter U2 is connected to the other end of capacitor C3 and the voltage control module.

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