CN2168381Y - Service life prolonging and energy-saving safety device for lamp - Google Patents

Abstract

The utility model relates to a service life extending and energy saving safety device for lamps. A service life and electricity saving device of an illuminating lamp is connected with an ac electric capacitor with high voltage and a discharging resistor in series, and the purposes of extended service life and energy saving are achieved. The utility model has the notable current limiting action on momentary current. The utility model has the advantages of good energy saving effect, extended service life, no worry about a short circuit for external circuits, and high use safety factor. The utility model not only can be used for extending the service life and ensuing safety for incandescent lamps, but also can be used for extending the service life and ensuing safety for electronic ballasting fluorescent lamps with low power (7-13 w). The utility model is suitable for being used for illuminating energy saving lamps with low voltage, low power and low brightness.

Description

Service life prolonging and energy-saving safety device for lamp

The utility model is a kind of light fixture energy-conservation safeties of lengthening the life, and it is applicable to the electric energy-saving light fixture.

The battery saving arrangement of lengthening the life of existing lighting bulb is a controllable silicon delay circuit and the current-limited startup circuit that choosing value resistor composes in parallel.The sort circuit incandescent lamp is through the preheating of choosing value resistance current limliting after 0.5 second, and controllable silicon is connected, and the total head power supply by the attenuating temporary impact electric current of turning on light, reaches the purpose of saving of lengthening the life.Consult magazine " battery saving arrangement of lengthening the life of lighting bulb " (" radio " 1987 the 7th phase P25), this circuit is simple, can prolong bulb life, but power savings is not remarkable, external circuit does not allow short circuit, and when line voltage was higher, bulb power rose big, only was applicable to the incandescent lamp of regulation power.Introduce according to capacitance decompression and " electric capacity ballast and applicating example " (" radio " 1977 the 3rd phase P25～26), utilization is in the mains circuit, capacitor is equivalent to the constant-current source of a high impedance, realizes conversion of civil power low pressure and constant current power supply, and its circuit is simple, in light weight, purposes is wide, and in energized moment, because the voltage on the electric capacity can not kick, the circuit impulse current is big, damages the element in the circuit easily.

Task of the present utility model is the deficiency for fear of prior art, and a kind of new light fixture economize on electricity safeties of lengthening the life are provided, in improving, the safety and reliability of small-power electronics ballast energy-saving lamp, and the applying of accelerated electron ballast Power saving lamp.

The utility model is lengthen the life high-voltage alternating capacitor of battery saving arrangement series connection and the drain resistor by a lighting, reaches the purpose of energy saving of lengthening the life.

The utility model is made up of shell, lead-in wire and electronic circuit.Its electronic circuit is by two capacitor C ₁, C ₂, four resistor R ₁, R ₂, R ₃And R ₄, four diode D ₁, D ₂, D ₃And D ₄And a controllable silicon SCR is formed.Wherein, by diode D ₁～D ₄The bridge rectifier of forming 1 behind the termination light fixture 2 of its ac input end, inserts an end of utility grid, the other end then with capacitor C ₁And resistor R ₁Parallel circuits join, and insert the other end of utility grid.The dc output end of bridge rectifier 1 connects resistor R ₂With by resistor R ₃, R ₄, capacitor C ₂And the direct current delay switch circuit of controllable silicon SCR composition.Wherein, the anodal termination resistor R of bridge rectifier 1 dc output end ₃An end and the anode of controllable silicon SCR, the negative pole termination resistor R of bridge rectifier 1 dc output end ₄An end and capacitor C ₂Negative pole and be connected with the negative electrode of controllable silicon SCR.The control utmost point of controllable silicon SCR and capacitor C ₂Positive pole, resistor R ₃, R ₄The other end connect.At the moment that circuit is connected, capacitor C ₁, C ₂Can be considered short circuit, controllable silicon SCR is turn-offed because of triggerless voltage.Alternating current is through capacitor C ₁With by diode D ₁～D ₄Behind the bridge rectifier of forming 1, pass through resistor R ₂Form the loop with light fixture 2.Because resistor R ₂Metering function, make whole loop can not produce big impulse current.Along with resistor R ₂Voltage VR ₂Pass through resistor R ₃To capacitor C ₂Charging, capacitor C ₂Both end voltage raises gradually, as capacitor C ₂When both end voltage reaches the trigger voltage of controllable silicon SCR, the controllable silicon SCR conducting, at this moment, resistor R ₂By the controllable silicon SCR short circuit, alternating current passes through capacitor C after rectification ₁, controllable silicon SCR and light fixture 2 form loops.Reach the purpose of the economize on electricity of lengthening the life.

The utlity model has following advantage:

1, can limit the temporary impact electric current, power savings is remarkable, can prolong the useful life (more than 10 times) of light fixture;

2, external circuit is not afraid of short circuit.When short circuit appears in external circuit, do not damage active power, can not damage relevant components and parts, coefficient height safe in utilization;

3, can be used for the insurance of lengthening the life of small-power (7-13W) electronic ballast daylight light fixture;

4, can realize the low pressure conversion of civil power, at starter 6～8V, during 12V low pressure small electric bulb, the maximum current that can provide is between 0.3～0.4A, and the illumination that is suitable for low pressure, low-power, low-light level is used.

Be illustrated with accompanying drawing below:

Fig. 1 is an electronic circuit schematic diagram of the present utility model.

Now the scheme of the present utility model that realizes is described with embodiment.

As shown in Figure 1, circuit of the present utility model is by two capacitor C ₁, C ₂, four resistor R ₁, R ₂, R ₃And R ₄, four diode D ₁, D ₂, D ₃And D ₄And a controllable silicon SCR is formed.Wherein, by diode D ₁～D ₄The bridge rectifier of forming 1, an end of utility grid is inserted in a termination light fixture 2 backs of its ac input end.The other end then with capacitor C ₁And resistor R ₁Parallel circuits join, and insert the other end of utility grid.The dc output end of bridge rectifier 1 connects resistor R ₂With by resistor R ₃, R ₄, capacitor C ₂Direct current delay switch circuit with the controllable silicon SCR composition.Wherein, the anodal termination resistor R of bridge rectifier 1 dc output end ₃An end and the anode of controllable silicon SCR, the negative pole termination resistor R of bridge rectifier 1 dc output end ₄An end and capacitor C ₂Negative pole and join with the negative electrode of controllable silicon SCR.The control utmost point of controllable silicon SCR and capacitor C ₂Positive pole, resistor R ₃, R ₄The other end connect.

In the selected components and parts of the utility model, diode D ₁～D ₄Use earlier IN4007, it is 1A that controllable silicon SCR adopts Mean Forward Current, and oppositely withstand voltage is the above one-way SCR of 400V, and this example will be taked MCR100-8; Capacitor C ₁Select CBB61 type AC capacitor for use, operating voltage 400V, capacity 4.75uf, resistor R ₁Adopt 1/4W470K Ω carbon film colour circle resistance, resistor R ₂With 1～2W1K Ω carbonaceous or metalfilmresistor, resistance R ₃Select 1/4W120K Ω carbon film colour circle resistance for use, resistor R ₄Get 1/4W2.2K Ω carbon film colour circle resistance; Capacitor C ₂With the withstand voltage 10～16V electrolytic capacitor of 330uf (CD-11).

After the utility model is pressed said elements numerical value and installed, need not adjust, insert the incandescent lamp bulb of 220V40W, after the energized, bulb is should first red back bright, as red not working only, not conducting of controllable silicon SCR is described, in time deenergization is searched reason, otherwise resistor R ₂Will cross cause thermal damage.Passed by 0.5 second as controllable silicon SCR time-delay ON time, can suitably reduce resistor R ₃Resistance.During use, as long as the utility model is replaced fuse box (sealing in the light fixture loop) in the former circuit.For example, select the YJDA-40 device, can be used for the economize on electricity of lengthening the life of 220V40～60W incandescent light fitting, be applicable to the insurance of lengthening the life of 11～13W electronic ballast Power saving lamp simultaneously, but the starting resistor raising also can be used for starter one to several low pressure small electric bulbs.As long as the operating current of Low voltage lamp just can use between 0.3～0.4A.

Claims (2)

1, a kind of light fixture energy-conservation safeties of lengthening the life is characterized in that lengthen the life high-voltage alternating capacitor of battery saving arrangement series connection and drain resistor by a lighting, and its circuit is by two capacitor C ₁, C ₂, four resistor R ₁, R ₂, R ₃And D ₄, four diode D ₁, D ₂, D ₃And D ₄And a controllable silicon SCR is formed; Wherein, by diode D ₁～D ₄The bridge rectifier of forming 1 behind the termination light fixture 2 of its ac input end, inserts an end of utility grid, the other end then with capacitor C ₁And resistor R ₁Parallel circuits join, and insert the other end of utility grid; The dc output end of bridge rectifier 1 connects resistor R ₂With by resistor R ₃, R ₄, capacitor C ₂Direct current delay switch circuit with the controllable silicon SCR composition; Wherein, the anodal termination resistor R of bridge rectifier 1 dc output end ₃An end and the anode of controllable silicon SCR, the negative pole termination resistor R of bridge rectifier 1 dc output end ₄An end and capacitor C ₂Negative pole and join the control utmost point of controllable silicon SCR and capacitor C with the negative electrode of controllable silicon SCR ₂Positive pole, resistor R ₃, R ₄The other end connect.

2, the light fixture according to claim 1 energy-conservation safeties of lengthening the life is characterized in that the diode D in the bridge rectifier 1 ₁～D ₄Select IN4007 for use, it is 1A that controllable silicon SCR adopts Mean Forward Current, and oppositely withstand voltage is the above one-way SCR of 400V; Capacitor C ₁Select CBB61 type AC capacitor for use, operating voltage 400V, capacity 4.75uf; Resistor R ₁Adopt 1/4W470K Ω carbon film colour circle resistance, resistor R ₂With 1～2W1K Ω carbonaceous or metalfilmresistor, resistor R ₃Select 1/4W120K Ω carbon film colour circle resistance, resistor R ₄Get 1/4W2.2K Ω carbon film colour circle resistance; Capacitor C ₂Get the withstand voltage 10～16V electrolytic capacitor of 330uf (CD-11).