The LED interior lighting system that solar energy power generating and civil power are complementary
Technical field
The utility model relates to a kind of LED interior lighting system, the LED interior lighting system that particularly a kind of solar energy power generating and civil power are complementary.
Background technology
Along with the appearance of natural energy resources shortage and problem of environmental pollution, solar energy has obtained development fast as a kind of new energy technology of environmental protection.Simultaneously as new light sources LED semiconductor lighting technology, also extremely people's attention of advantage such as, environmental protection long, energy-conservation with its life-span.Solar energy power generating is combined with the LED illuminator, and exploitation and popularization photovoltaic LED illuminator are of great immediate significance, and this technology has become the focus of Application Research instantly.
At present, occurred much on the market, but also this illuminator scale has not been applied to common occasions such as room lighting such as public illumination products such as solar LED street lamps.Mostly existing LED room lighting product is the single power supply of civil power, needs the electric energy of labor.Solar energy resources is abundant, and solar energy power generating is applied to the LED room lighting, and electricity consumption can save lighting.Simultaneously, because the energy output of solar energy power generating is affected by environment bigger, if single employing solar energy power generating as the room lighting power supply, is difficult to guarantee the continuation and the reliability of room lighting again.Simultaneously, the complementary control mode of traditional civil power is by civil power accumulators electric energy supplement, rather than direct powering load, because the commercial power charged transform part in the middle of having increased, certainly will increase the loss of system and reduce the whole efficiency and the reliability of system.
Summary of the invention
The goal of the invention of the utility model is in order to overcome above-mentioned difficulties, to provide a kind of solar energy power generating and civil power complementary LED interior lighting system.
The technical scheme of the utility model is: the LED interior lighting system that a kind of solar energy power generating and civil power are complementary; Comprise power supply unit; The constant current output unit; Described power supply unit comprises solar photovoltaic powered module and mains-supplied module, and the input of the output of solar photovoltaic powered module and mains-supplied module is connected with the complementary switch unit of civil power, and the output of the complementary switch unit of civil power inserts the constant current output unit; Described solar powered module includes solar-energy photo-voltaic cell, charge-discharge control circuit and storage battery; Said storage battery inserts the complementary switch unit of civil power, and native system also is provided with control unit, and control unit connects control charge-discharge control circuit and the complementary switch unit of civil power.
Described constant current output unit is made up of constant-flow driver and led light source, and the complementary switch unit of described civil power is made up of relay circuit.
The beneficial effect of the utility model is: solar energy power generating is combined with the civil power complementation, for the LED energy efficient lighting system provides reliable power supply, energy-conserving and environment-protective.System configuration is simple, and is reliable and stable, and efficient is high.The application demand that can be fit to most of room lighting occasions.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model.
Fig. 2 is the commutation circuit schematic diagram of the complementary switch unit of civil power among Fig. 1.
Embodiment
In the schematic block circuit diagram as shown in Figure 1, the utility model comprises solar photovoltaic powered module (1), mains-supplied module (2), control unit (3), the complementary switch unit (4) of civil power and constant current output unit (5).The input of the output of solar photovoltaic powered module (1) and mains-supplied module (2) is connected the complementary switch unit (4) of civil power, the output constant current output unit (5) of the complementary switch unit of civil power (4).
Described solar photovoltaic powered module (1) is made up of solar-energy photo-voltaic cell, charge-discharge circuit and storage battery; The electric energy of solar-energy photo-voltaic cell opto-electronic conversion carries out the accumulation of energy charging through charging circuit to storage battery; The electric energy of storage battery discharges through discharge circuit again; Through the complementary switch unit of civil power LED constant current output module is supplied power, wherein charge-discharge circuit is controlled by control unit (3) again.
Described control unit (3) is made up of control unit and control power supply; The control power supply is supplied power the stable DC that the electric energy of civil power or storage battery converts 12V and 5V to control unit; The electric energy that adopts storage battery under the normal condition is as input, when the electric energy of storage battery is not enough, adopts civil power as input.Control unit is that core is formed by microcontroller MCU 78k9234, accomplishes discharging and recharging of solar power generation and controls and the civil power switching controls, also has the time controlled function.
The complementary switch unit of said civil power (4) is made up of relay circuit, and the normally-closed contact of relay as shown in Figure 2 connects the output of photovoltaic power supply module (1).When storage battery electricity electric energy is not enough, by the action of control unit (3) control relay, transfer contact and mains-supplied module (2) are connected, guaranteed the reliable power supply that continues of constant current output unit (5).
Described constant current output unit (5) is made up of constant-flow driver and led light source; In the present embodiment; Constant-current driving power supply adopt can wide voltage alternating current-direct current 70-260V input the constant-current driving Switching Power Supply form; Can satisfy the different electric energy inputs of civil power or storage battery, output can connect the high-power LED light source of 18-55W.
The content of not doing in this specification to describe in detail belongs to this area professional and technical personnel's known prior art; Those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model, all belongs to the protection range of the utility model.