CN201428962Y

CN201428962Y - LED reflector lamp

Info

Publication number: CN201428962Y
Application number: CN2009201319019U
Authority: CN
Inventors: 林信义
Original assignee: Laiyidi Optoelectronic Technology (shenzhen) Co Ltd
Current assignee: Laiyidi Optoelectronic Technology (shenzhen) Co Ltd
Priority date: 2009-05-18
Filing date: 2009-05-18
Publication date: 2010-03-24
Anticipated expiration: 2019-05-18
Also published as: WO2010133011A1

Abstract

The utility model provides an LED reflector lamp, which comprises a lamp cup, a lamp cap and a plug. The lamp cup includes an outer casing, and the lamp cap and the plug are respectively arranged at two ends of the outer casing; the outer casing is a metal outer casing with fine heat dissipation; a PWM electronic constant current module supplying constant current for the lamp cap is further arranged inside the outer casing. The outer casing of the LED reflector lamp adopting a die-casting aluminum casing can not be smashed and can solve the problem of heat dissipation; a PWM electronic constant current drive circuit arranged inside the outer casing can prolong the service life of the reflector lamp.

Description

The LED shot-light

[technical field]

The utility model relates to a kind of LED lamp, relates in particular to a kind of LED shot-light.

[background technology]

Comprise three kinds of MR16 Halogen lamp LED, the little shot-lights of ∮ 5 lamp pearl LED MR16 (lamp pearl diameter is 5mm) and the little shot-lights of great power LED at present on the market.

Tradition MR16 Halogen lamp LED power consumption is big, and power is up to 35W, and the life-span is short, is generally 3000-5000 hour, and heating is big, can not touch, during work surface temperature up to more than 90 ℃, on fire easily, and contain ultraviolet ray in its spectrum, not environmental protection, lamp body is glass, and is frangible, is not durable.

The little shot-light of ∮ 5 lamp pearl LED MR16 has improved the shortcoming of traditional MR16 Halogen lamp LED, but because be subjected to the housing diameter volume restrictions can only accomplish 39 lamp pearls at most, its light that sends can't reach the luminous intensity of traditional MR16 Halogen lamp LED 35W, brightness is not enough, and the resistance current limliting is only used in inside, can not simultaneous adaptation AC and DC voltage, the electric current instability easily causes the lamp pearl life-span short, dead lamp occurs even burns out.

Though the little shot-light of great power LED has also improved the shortcoming of traditional MR16 Halogen lamp LED, but be subjected to the housing diameter volume restrictions, can only put 3 high-power lamp pearls at most, obviously greater than ∮ 5 lamp pearl LED MR16, the light that sends also can't reach the luminous intensity of traditional MR16 Halogen lamp LED 35W to power consumption, brightness is not enough, and heat is big, and the surface temperature height easily quickens the decay of lamp pearl, even damage the lamp pearl, have a strong impact on the service life of shot-light.

[utility model content]

Technical problem to be solved in the utility model is to provide a kind of LED shot-light, its good heat dissipation and long service life.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of LED shot-light is provided, comprises Lamp cup, lamp holder and plug, described Lamp cup comprises shell, and lamp holder and plug set up the two ends of shell separately; Described shell is the metal shell of good heat dissipation; Also be provided with the PWM electronics constant flow module of supplying with the lamp holder constant current in the described shell.

Compared with prior art, the shell of above-mentioned LED shot-light adopts the die casting aluminum hull, can not fall mashedly, can solve heat dissipation problem again; Be provided with PWM electronics constant-current drive circuit in the shell, can prolong the life-span of shot-light.

[description of drawings]

Fig. 1 is that the master of the utility model one preferred embodiment looks schematic diagram.

Fig. 2 is a schematic side view embodiment illustrated in fig. 1.

Fig. 3 is a schematic top plan view embodiment illustrated in fig. 1.

[specific embodiment]

In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

Seeing also Fig. 1 to Fig. 3, is a preferred embodiment of the utility model LED shot-light, and it comprises Lamp cup 1, lamp holder 2 and plug 3, and described lamp holder 2 is connected in the front end of Lamp cup 1, and plug 3 is connected in the rear end of Lamp cup 1, and plug 3 is connected for lamp holder 2 luminous with socket.

Described Lamp cup 1 comprises shell 10, and described shell 10 is the metal shell of good heat dissipation, is in the present embodiment not fall by the die casting aluminum hull mashed, cracked.The aluminum hull radiating rate is fast, and its radiating rate and thermal conductivity factor are higher than glass far away, therefore can solve the heat problem of shot-light work well, and surface temperature is lower than 40 degree when making shot-light work.Be provided with the base (not shown) in the described shell 10, be inserted with PWM (pulsewidth modulation) electronics constant flow module (not indicating among the figure) on base, described electronics constant flow module is fixed on the shell 10.Described electronics constant flow module relies on a loop to realize the current detecting of load, then by the dutycycle of PWM control output, reaches the purpose of constant current, has realized that thus promptly lamp holder 2 with the mode supply load of input voltage by constant current.Adopt the electronics constant flow module to abandon conventional resistance current-limiting circuit, current stabilization, no clutter has better absorbed the spike of power supply, simultaneously two kinds of voltages of energy self adaptation AC and DC.

Described lamp holder 2 is fixed on the shell 10, and it comprises lamp plate 21 and some LED lamp pearls 20, and described LED lamp pearl 20 places on the lamp plate, adopts LED as light source, reduces power consumption, and under the prerequisite of same brightness, power consumption reduces greatly, has well realized energy-conservation.Described LED lamp pearl 20 volumes reach ∮ 3 (diameter is 3mm), and the brightness of the LED lamp pearl 20 of ∮ 3 is no less than ∮ 5 lamp pearls, and on equal volume the corresponding quantity that increases LED lamp pearl 20, therefore the brightness of whole shot-light has improved greatly.Can discharge 39-60 20, three on ∮ 3LED lamp pearl above the described lamp plate and be connected into one group, divide the parallel connection of many groups to be emitted on together then.

Described plug 3 comprises two copper stitch 30, is inserted on the socket that power supply is 12V.Can also establish the outer cover (not shown) on the described Lamp cup 1, protection lamp holder 2.

The shell 10 of above-mentioned LED shot-light adopts the die casting aluminum hulls, can not fall mashedly, can solve heat dissipation problem again; Be provided with PWM electronics constant-current drive circuit in the shell 10, can prolong the life-span of shot-light; Lamp holder 2 adopts LED lamp pearls 20, and does not contain material such as ultraviolet ray, very environmental protection in the LED spectrum; The LED lamp pearl that described LED lamp pearl 20 is adopted ∮ 3 is as light source, and lamp pearl quantity increases, and makes the height of whole shot-light improve greatly.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. a LED shot-light comprises Lamp cup, lamp holder and plug, and described Lamp cup comprises shell, and lamp holder and plug set up the two ends of shell separately; It is characterized in that: described shell is the metal shell of good heat dissipation; Also be provided with the PWM electronics constant flow module of supplying with the lamp holder constant current in the described shell.

2. LED shot-light as claimed in claim 1 is characterized in that: described shell is the die casting aluminum hull.

3. LED shot-light as claimed in claim 2 is characterized in that: be provided with base in the described shell, described PWM electronics constant flow module is located on the base, and PWM electronics constant flow module is fixed on the shell.

4. LED shot-light as claimed in claim 3 is characterized in that: described PWM electronics constant flow module is the current detecting that lamp holder is realized in a loop, and by the dutycycle that PWM control is exported, reaches the PWM electronics constant flow module of constant current.

5. LED shot-light as claimed in claim 1 is characterized in that: described lamp holder comprises lamp plate and a plurality of LED lamp pearl, and described LED lamp pearl places on the lamp plate.

6. LED shot-light as claimed in claim 5 is characterized in that: the diameter of described LED lamp pearl is 3mm.

7. LED shot-light as claimed in claim 6 is characterized in that: can discharge 39-60 LED lamp pearl above the described lamp plate.

8. LED shot-light as claimed in claim 1 is characterized in that: described plug comprises two copper stitch, and is inserted on the socket that power supply is 12V.

9. as any described LED shot-light in the claim 1 to 8, it is characterized in that: the outer cover of establishing the protection lamp holder on the described Lamp cup.