CN201628195U

CN201628195U - Small lamp bulb

Info

Publication number: CN201628195U
Application number: CN2010201077597U
Authority: CN
Inventors: 马世对
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-02-02
Filing date: 2010-02-02
Publication date: 2010-11-10
Anticipated expiration: 2020-02-02

Abstract

The utility model discloses a small lamp bulb, which comprises a metal bottom shell, an insulating ring and contact copper sheets which are fixedly connected on the lower end of the metal bottom shell, wherein the metal bottom shell is provided with a luminous device, and two power supply contacts of the luminous device are respectively welded on the contact copper sheets which connect the metal bottom shell and the insulating ring on the lower end thereof. The small lamp bulb is characterized in that the luminous device comprises a high brightness light emitting diode and a driving circuit unit which is connected with the high brightness light emitting diode, wherein the driving circuit unit is arranged in an inner cavity of the metal bottom shell, the high brightness light emitting diode is arranged on the upper end of an insulating support seat which is fixedly connected with the upper end of the metal bottom shell, and is fixedly connected with the insulating support seat. The small lamp bulb has the advantages that the small lamp bulb keep the advantages that a tungsten wire small lamp bulb used on a traditional torch can be directly and conveniently arranged on a torch lamp holder to use by users, the exchange and mounting are convenient, and the luminous efficiency is also higher than the tungsten wire small lamp bulb, the power is saved, and the service life is long.

Description

A kind of miniature bulb

Technical field

The utility model relates to the miniature bulb of using on a kind of flashlight, is meant that especially a kind of high brightness LED that adopts is the miniature bulb of light source.

Background technology

Flashlight is that people are used for night or dark surrounds illuminations commonly used, and the illuminating source in the miniature bulb of using on traditional flashlight is to adopt tungsten filament to make, and when the tungsten filament in the bulb passed through electric current, the resistance of tungsten filament made itself luminous.This tungsten filament miniature bulb is the resistance illumination mode, generates heat easily during use, has the shortcoming that power consumption is big, service life is short.In recent years, appearance along with high brightness LED, the tungsten filament miniature bulb of using on this flashlight is progressively replaced, and adopts high brightness LED to replace traditional miniature bulb of using on the flashlight, has advantages such as luminous efficiency height, power consumptive province, life-span length.But, because high brightness LED need have drive circuit to guarantee the stable of its voltage and current in use, and the restriction that is subjected to its contour structures characteristics, at present high brightness LED also can't as common tungsten filament miniature bulb by user's direct convenience install on the flashlight lamp socket of traditional structure and use, and need when flashlight is made, high brightness LED and direct setting of its drive circuit to be mounted in the head of flashlight, become the LED flashlight, this LED flashlight is with respect to the flashlight structure complexity of traditional structure, the manufacturing cost height.

The utility model content

Technical problem to be solved in the utility model is the deficiency that exists at prior art, and a kind of high brightness LED that adopts is provided is the miniature bulb that light source design is made, its can by user's direct convenience install on the flashlight lamp socket of traditional structure and use.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of miniature bulb, comprise metal drain pan and the insulated ring and the contact copper sheet of fixedlying connected with its lower end, on the metal drain pan, light-emitting device is housed, two power supply contacts of light-emitting device are welded on respectively on the contact copper sheet that the metal drain pan reaches with its lower end insulated ring is connected, it is characterized in that: described light-emitting device comprises a high brightness LED and connected drive circuit unit, wherein, drive circuit unit partly is arranged in the inner chamber of metal drain pan, high brightness LED then is positioned at the upper end of the insulated leg of fixedlying connected with metal drain pan upper end, fixedlys connected with it.

Compared with prior art, advantage of the present utility model is: promptly kept the tungsten filament miniature bulb used on traditional flashlight can by user's direct convenience install on the flashlight lamp socket and use, outside the tool transposing is easy for installation, the advantage than tungsten filament miniature bulb luminous efficiency height, power saving and long service life is arranged again.And solution has overcome the LED flashlight that occurs in the market, and manufacturing cost height, its high brightness LED are to fixedly connected with the lamp socket of flashlight head inner chamber, cannot be loaded and unloaded the shortcoming of transposing by the user.

Description of drawings

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.

The specific embodiment

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

Referring to Fig. 1～shown in Figure 2, the utility model miniature bulb, comprise metal drain pan 1 and the insulated ring 11 and the contact copper sheet 12 of fixedlying connected with its lower end, light-emitting device 3 is housed on metal drain pan 1, and two

power supply contacts

31,32 of light-emitting device 3 are welded on respectively on the contact copper sheet 12 that metal drain pan 1 reaches with its lower end insulated ring 11 is connected; Described light-emitting device 3 comprises a high brightness LED 33 and connected drive circuit unit 34 compositions, wherein, drive circuit unit 34 parts are arranged in the inner chamber of

metal drain pan

1,33 of high brightness LEDs are positioned at the upper end of the insulated leg 2 of fixedlying connected with metal drain pan 1 upper end, fixedly connected with it.

The circuit of above-mentioned described light-emitting device 3 constitutes as shown in Figure 3, drive circuit unit 34 is connected to form by boost drive integrated circult IC1 and inductor L1 of commercially available LED special use, wherein, the input of IC 1 2. pin is connected the back as power supply contact 32 with the end of inductor L1, the output pin of IC 1 1. pin is connected the back and is connected with the positive pole of high brightness LED 33 with another pin of inductor L1, the negative pole of high brightness LED 33 and IC 1 hold commonly 3. that pin is connected afterwards as power supply contact 31.

The drive circuit unit of light-emitting device 3 its high brightness LEDs of the utility model miniature bulb is not limited to the circuit described in the foregoing description and forms; in actual product, also can replace with the circuit of other identical functions; so; simple circuit variation and the structure equivalent variations of doing according to the design concept that the utility model specification or diagramatic content disclose all should be protection domain of the present utility model and contain.

Claims

1. miniature bulb, comprise metal drain pan (1) and the insulated ring (11) and the contact copper sheet (12) of fixedlying connected with its lower end, light-emitting device (3) is housed on metal drain pan (1), two power supply contacts (31) of light-emitting device (3), (32) be welded on respectively on the contact copper sheet (12) that metal drain pan (1) reaches with its lower end insulated ring (11) is connected, it is characterized in that: described light-emitting device (3) comprises a high brightness LED (33) and connected drive circuit unit (34), wherein, drive circuit unit (34) part is arranged in the inner chamber of metal drain pan (1), high brightness LED (33) then is positioned at the upper end of the insulated leg (2) of fixedlying connected with metal drain pan (1) upper end, fixedlys connected with it.

2. a kind of miniature bulb according to claim 1 is characterized in that: described drive circuit unit (34) is connected to form by boost drive integrated circult (IC1) and inductor (L1) of LED special use.