CN2451882Y - Small power electricity-economizing small bulb - Google Patents

Abstract

The utility model provides a low power electricity-saving small bulb. A metal bottom shell is provided with a transparent lamp shade, and the inner part of the metal bottom shell is provided with a light-emitting device. The both power supply contacts of the light-emitting device are respectively connected with the metal bottom shell and a bottom contact which is insulated from the metal bottom shell. The light-emitting device is composed of a high-brightness light-emitting diode, a rectifying circuit and resistors which are connected together. The rectifying circuit and the resistors convert high-voltage direct current or alternating current into low-voltage low-current direct current, then the high-brightness light-emitting diode is provided with power supply, so that the purposes of saving electricity and prolonging service life are achieved.

Description

Small-power economize on electricity miniature bulb

The utility model relates to a kind of small-power economize on electricity miniature bulb, belongs to the electronic installation class, refers to that especially a kind of employing one high brightness LED is the miniature bulb of light source.

General flashlight owing to be used for closely throwing light on, does not need to use powerful osram lamp; As blinker on automobile or the locomotive or little illuminating lamp, yet non-remote illumination usefulness is not so need to use the osram lamp of high light large power yet.

Existing osram lamp is luminous to be to pass through tungsten filament by electric current, and the resistance of tungsten filament makes itself luminous, and therefore, existing osram lamp generates heat easily, damages easily, and service life is low.

Because of existing osram lamp is the resistance illumination mode, if use dry cell as power supply, then because of osram lamp power consumption is big, dry cell can't provide power supply for a long time, and service time is shorter; If use alternating current as power supply, there is the big problem of power consumption equally, hot easily because of osram lamp, service life is shorter.

Main purpose of the present utility model is to provide a kind of illuminating miniature bulb, adopts a high brightness LED luminous, realizes power saving and increases the service life.

The purpose of this utility model is achieved in that on a metal drain pan Transparent lamp shade is housed, and in the metal drain pan light-emitting device is housed, two power supply contacts of this light-emitting device be connected respectively to the metal drain pan and with the bottom contact of its insulation; This light-emitting device is connected with a rectification circuit and resistance by a high brightness LED.

The utility model converts high-tension direct current or alternating current the direct current of low pressure low current to by rectification circuit and resistance, is used for lighting high brightness LED, with the purpose that reaches power saving and increase the service life.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is an assembling view of the present utility model.

Fig. 3 is a circuit diagram of the present utility model.

Fig. 4 is that of the present utility model another implemented circuit diagram.

As shown in Figure 1 and Figure 2, the utility model is that a Transparent lamp shade 2 is installed on a metal drain pan 1, and a light-emitting device 3 is installed metal drain pan 1 in, two power supply contacts 31,32 of this light-emitting device 3 be connected to metal drain pan 1 and and the bottom contact 1a of its insulation; This light-emitting device 3 connects a rectification circuit 34 and resistance 35 by a high brightness LED 33, and this rectification circuit 34 is a bridge rectifier as shown in Figure 3.

If use alternating current as power supply, then can reduce voltages earlier by the resistance 35 of light-emitting device 3, convert alternating current to direct current by rectification circuit 34 then, light high brightness LED 33 again.

If use direct current as power supply, the resistance 35 by light-emitting device 3 reduces voltage earlier equally, differentiates positive and negative electrode by rectification circuit 34 then, lights high brightness LED 33; Owing to differentiate negative or positive electrodes by rectification circuit 34, thus need not divide positive and negative electrode to use when using direct current as the input power supply, thereby comparatively convenient.

Because high brightness LED 33 heatings are low, thus be not easy because of heating damages, so long service life.Power consumption because of high brightness LED 33 is low again, therefore comparatively economize on electricity; In addition, the Transparent lamp shade on this metal drain pan 1 is to make with perspex, is not easy because of the collision breakage, and security is higher.

As shown in Figure 4, a contact of high brightness LED 33 contact a commutation diode 36 and resistance 35 equally can be by resistance 35 first step-downs, and by giving high brightness LED 33 power supplies after commutation diode 36 rectifications, this is another embodiment of the present utility model again.

Claims (1)

1, a kind of small-power economize on electricity miniature bulb has a Transparent lamp shade on the one metal drain pan, and a light-emitting device is arranged in the metal drain pan, two power supply contacts of this light-emitting device connect respectively the metal drain pan and with the bottom contact of its insulation; It is characterized in that: a high brightness LED of light-emitting device connects a rectification circuit and resistance.

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