CN201037632Y - Light-emitting diode bulb - Google Patents

Abstract

The utility model discloses a light-emitting diode bulb, it includes a cavity base and a cavity lamp shade, and this base bottom and periphery respectively are an electrode, and this lamp shade is connected in the base top, is equipped with the power converter of connecting electrode in this base, is equipped with at least one in this lamp shade and connects in the light-emitting diode of this power converter. Because emitting diode has power consumption and longer life that is lower than the tungsten filament bulb, consequently replaces the tungsten filament bulb gradually, so the utility model discloses utilized emitting diode's advantage, but also can convert the alternating current of commercial power into the required direct current of emitting diode through power converter, made it be suitable for on the lamp stand of accepting the tungsten filament bulb originally, very convenient and practical.

Description

light emitting diode bulb

technical field

The utility model relates to a light bulb, in particular to a light-emitting diode light bulb provided with a light-emitting diode chip in a lampshade.

Background technique

Generally, the existing light bulbs are mainly tungsten filament bulbs, which are equipped with tungsten filaments and an inert gas environment in the lampshade. The current passes through the tungsten filaments to heat the tungsten filaments to a temperature as high as 2500°C, so that thermal radiation generates light energy. However, only about 5% of the electric energy of the tungsten filament bulb can be converted into light energy, and the rest is converted into heat energy, so the tungsten filament bulb wastes a lot of electric energy, but the luminous brightness still cannot be improved. In addition, tungsten filament bulbs have a short lifespan and are not very durable.

Utility model content

The applicant of the present utility model considers that the existing tungsten filament light bulb consumes electricity, has low luminance and short lifespan, so after continuous attempts and efforts, he finally created the light-emitting diode light bulb.

The purpose of the utility model is to provide a light-emitting diode chip in the lampshade to increase the brightness of the light bulb under the condition of low power consumption, and has an extremely long service life of the light-emitting diode light bulb.

In order to achieve the above object, the light-emitting diode light bulb of the present utility model includes a hollow base and a hollow lampshade, the bottom of the base and the outer periphery are each an electrode, and the lampshade is connected to the top of the base. It is characterized in that:

A power converter connected to electrodes is arranged in the base, and at least one light-emitting diode connected to the power converter is arranged in the lampshade.

Since light-emitting diodes have lower power consumption and extremely long service life (about 50,000 to 100,000 hours) than tungsten filament bulbs, they are gradually replacing tungsten filament bulbs, and the power consumption of light-emitting diodes is only up to 2.5 watts ( W), very power-saving, so the utility model has utilized the advantage of light-emitting diode, and can also convert the alternating current of mains power into the direct current required by light-emitting diode by power converter, make it applicable to accept the tungsten filament bulb originally On the lamp stand, it is very convenient and practical.

Description of drawings

Fig. 1 is a side view of the utility model.

Fig. 2 is a side sectional view of the utility model.

Fig. 3 is a circuit diagram of the utility model power converter.

Description of component symbols

(11) Base (111) External thread

(12) Lampshade (20) Power converter

(21) Filter circuit (22) Bridge rectifier

(23) Resistor (30) Light-emitting diode

Detailed ways

Please refer to Fig. 1 and shown in Fig. 2, the light-emitting diode light bulb of the present utility model, it is screwed in the lamp holder (not shown in the figure) that has internal thread and has the plug that can be connected with power socket, this light-emitting diode light bulb Including a hollow base 11 and a hollow lampshade 12, the bottom of the base 11 and the outer periphery are respectively provided with an electrode, and the outer periphery is provided with an internal thread corresponding to the lamp holder and can screw the LED bulb to the lamp The external thread 111 of the seat, the lampshade 12 is connected to the top of the base 11, which is characterized in that:

The base 11 is provided with a power converter 20 connected to the electrodes, and the lampshade 12 is provided with at least one LED 30 connected to the power converter 20 and having a chip (not shown) inside.

In the embodiment of the present utility model, two light-emitting diodes 30 are arranged in the lampshade 12 in a vertically stacked manner, and each is connected to the power converter 20, and more than two light-emitting diodes 30 are stacked vertically. The way is placed in the lampshade 12.

2 and 3, the power converter 20 includes a filter circuit 21, a bridge rectifier 22 and at least one resistor 23 respectively connected to two electrodes, and the bridge rectifier 22 connects the electrodes (that is, the power supply) through the filter circuit 21. connected, and the output end of bridge rectifier 22 is connected with light-emitting diode 30 through resistance 23, so that the AC power sent into the light-emitting diode bulb by the power supply connected to the plug of the lamp holder can be converted into light-emitting diode 30 by the power converter 20 The required DC power supply is used to drive the chip in the light emitting diode 30 to generate light energy.

Since the light-emitting diode 30 has lower power consumption and longer service life (about 50,000 to 100,000 hours) than the tungsten filament bulb, it can gradually replace the tungsten filament bulb, so the utility model utilizes the advantages of the light-emitting diode 30, Moreover, the power converter 20 can also be used to make it suitable for a lamp holder that originally accepts a tungsten bulb, which is very convenient and practical.

Claims (5)

1. light emitting diode bulb, it comprises a hollow base and a hollow lampshade, and this base bottom and outside respectively are an electrode, and this lampshade is connected in the pedestal top, it is characterized in that:

Be provided with the power supply changeover device that connects electrode in this pedestal, be provided with at least one light emitting diode that is connected in this power supply changeover device in this lampshade.

2. light emitting diode bulb according to claim 1, it is characterized in that: this power supply changeover device comprises filter circuit and bridge rectifier and at least one resistance that connects two electrodes respectively, this bridge rectifier is connected with electrode by filter circuit, and this bridge rectifier output is connected with light emitting diode by resistance.

3. light emitting diode bulb according to claim 1 and 2 is characterized in that: the quantity of this light emitting diode is two or more, and it is to be arranged in the lampshade in the mode that vertical type piles up, and each is connected with power supply changeover device.

4. light emitting diode bulb according to claim 1 and 2 is characterized in that: the outside of this pedestal is provided with external screw thread.

5. light emitting diode bulb according to claim 3 is characterized in that: the outside of this pedestal is provided with external screw thread.

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