CN202484612U

CN202484612U - LED (Light-Emitting Diode) electric torch with heat radiation device

Info

Publication number: CN202484612U
Application number: CN2011205714283U
Authority: CN
Inventors: 王震; 黄晓华
Original assignee: Shanghai Luli Photoelectric Technology Co Ltd
Current assignee: Shanghai Luli Photoelectric Technology Co Ltd
Priority date: 2011-12-30
Filing date: 2011-12-30
Publication date: 2012-10-10
Anticipated expiration: 2021-12-30

Abstract

The utility model discloses an LED (Light-Emitting Diode) electric torch with a heat radiation device, comprising a front barrel, a middle barrel and a rear barrel, wherein the front barrel comprises a lamp cap, a waterproof rubber ring, a lens and a light focusing cover, wherein one LED light-emitting unit is located at the back part of the light focusing cover and is tightly contacted with the light focusing cover; and a heat radiation device for heat radiation of the LED light-emitting unit is arranged between the light focusing cover and the LED light-emitting unit. The light focusing cover contains a tapered reflection chamber and an emitting hole for light reflection of the LED light-emitting unit is arranged at the center of the bottom of the front side of the reflection chamber; and the heat radiation device is arranged on the back face of the reflection chamber and is fixedly connected with the reflection chamber. According to an LED illuminating device disclosed by the utility model, the light focusing cover of the electric torch is integrated with the heat radiation device, a heat radiation fin and an aluminum alloy of the reflection chamber of the light focusing cover are integrally machined and molded and the structure is compact; and the heat radiation capability of the LED light-emitting unit of the electric torch can be greatly improved and the structure is particularly suitable for the large-power electric torch.

Description

The LED flashlight of band heat abstractor

Technical field

The utility model relates to a kind of lighting device, or rather, is a kind of LED flashlight with heat abstractor.

Background technology

LED takes from the triliteral abbreviation of Light Emitting Diode, and Chinese is translated into " light emitting diode ", and as its name suggests, light emitting diode is a kind ofly can the electronic device that electric energy is converted into luminous energy be had the characteristic of diode.Just because of the plurality of advantages of LED, LED is widely used on the flashlight.But, because the volume of flashlight is generally all very compact, can't be for LED be provided with special heat abstractor in stack shell, it is interior and influence service life of LED that a large amount of heats that cause LED to produce are collected at stack shell.

China utility model patent ZL200820184223.8 discloses a kind of flashlight; This flashlight comprises the stack shell that holds battery, the illuminator that is connected to battery and the reflector that centers on illuminator; Especially, this flashlight also comprises: heat-conducting seat, illuminator are installed on the heat-conducting seat; Fin is connected in heat-conducting seat and centers on reflector; And skull, be connected to stack shell and hold reflector and fin, have a plurality of louvres on the skull.This flashlight utilizes the louvre of head to dispel the heat, and the heating conduction efficiency of LED is not high.

China utility model patent ZL201020574777.6 discloses a kind of great power LED flashlight; Comprise an Al-alloy casing; Be arranged on rechargable power supplies and control circuit in the housing; Front and rear at said surface of shell is provided with a plurality of radiating grooves spaced apart, and fin is arranged in the housing, is provided with transmission lens and optically focused reflector in the open front portion of said housing; Through offer the radiating groove of annular on the surface of LED flashlight housing; Thereby the fin in shell is stopped has solved the heat dissipation problem of LED, high-power LED can be set, through set up the optically focused reflector at front end in housing; After it can focus on LED, the distance that directive is farther.Equally, this flashlight is realized heat radiation through radiating groove, and the volume that takies is very big, and needs expensive CNC processing technology.

The utility model content

The utility model mainly is to solve the existing in prior technology technical problem, thereby a kind of LED flashlight with heat abstractor is provided, and the snoot and the construction for heat radiating device of flashlight are integrated.

The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals:

A kind of LED flashlight with heat abstractor; Comprise placket, middle tube and back tube; Described placket comprises the crown top of burner, waterproof apron, eyeglass and snoot; One LED luminescence unit is positioned at the rear portion of described snoot and closely contacts with described snoot, is provided with one between described snoot and the described LED luminescence unit and supplies the heat abstractor of described LED luminescence unit heat radiation.

Preferred embodiment as the utility model; Described snoot comprises the reflection cavity of a taper; The bottom central in the front of described reflection cavity is provided with the perforation hole of the described LED luminescence unit reflection ray of a confession, and described heat abstractor is arranged on the back side of described reflection cavity and is fixedly connected with described reflection cavity.

As the preferred embodiment of the utility model, described heat abstractor comprises the heat radiation array that is made up of radiating fin.

As the preferred embodiment of the utility model, described radiating fin and described reflection cavity are the machine-shaping of aluminium alloy one.

Because the LED lighting device of the utility model is integrated the snoot and the construction for heat radiating device of flashlight; Through reflection cavity aluminium alloy one machine-shaping with radiating fin and snoot; Compact conformation; Can put forward the heat-sinking capability of the LED luminescence unit that does flashlight greatly, be particularly suitable for powerful flashlight.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the perspective view of LED flashlight of the band heat abstractor of the utility model;

Fig. 2 is the STRUCTURE DECOMPOSITION sketch map of the LED flashlight of the band heat abstractor among Fig. 1;

Fig. 3 is the perspective view of snoot of the LED flashlight of the band heat abstractor among Fig. 2;

Fig. 4 is the perspective view of the snoot among Fig. 3, and be another visual angle this moment.

The specific embodiment

Below in conjunction with accompanying drawing the preferred embodiment of the utility model is set forth in detail, thereby the protection domain of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.

The utility model provides a kind of LED flashlight with heat abstractor, and the snoot and the construction for heat radiating device of flashlight are integrated.

Extremely shown in Figure 4 like Fig. 1; A kind of LED flashlight 1 with heat abstractor; Comprise placket 2, middle tube 3 and back tube 4; This placket 1 comprises the crown top of burner 21, waterproof apron 22, eyeglass 23 and snoot 24, one LED luminescence units 25 and is positioned at the rear portion of this snoot 24 and closely contacts with this snoot 24, is provided with one between this snoot 24 and this LED luminescence unit 25 and supplies the heat abstractor 243 of these LED luminescence unit 25 heat radiations.

This snoot 24 comprises the reflection cavity 241 of a taper; The bottom central in the front of this reflection cavity 241 is provided with the perforation hole 242 of these LED luminescence unit 25 reflection rays of confession, and this heat abstractor 243 is arranged on the back side of this reflection cavity 241 and is fixedly connected with this reflection cavity 241.

This heat abstractor 243 comprises the heat radiation array that is made up of radiating fin 2431.

This radiating fin 2431 is the machine-shaping of aluminium alloy one with this reflection cavity 241.

The LED lighting device of this utility model is integrated the snoot and the construction for heat radiating device of flashlight; Through reflection cavity aluminium alloy one machine-shaping with radiating fin and snoot; Compact conformation; Can put forward the heat-sinking capability of the LED luminescence unit that does flashlight greatly, be particularly suitable for powerful flashlight.

The mentality of designing of the utility model below only is described with an embodiment, and under the situation that system allows, the utility model can expand to external more function module simultaneously, thereby expands its function to greatest extent.

The above is merely the specific embodiment of the utility model, but the protection domain of the utility model is not limited thereto, and any variation or replacement of expecting without creative work all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain that claims were limited.

Claims

1. LED flashlight (1) with heat abstractor; Comprise placket (2), middle tube (3) and back tube (4); Described placket (1) comprises the crown top of burner (21), waterproof apron (22), eyeglass (23) and snoot (24); One LED luminescence unit (25) is positioned at the rear portion of described snoot (24) and closely contacts with described snoot (24), it is characterized in that, is provided with one between described snoot (24) and the described LED luminescence unit (25) and supplies the heat abstractor (243) of described LED luminescence unit (25) heat radiation.

2. the LED flashlight of band heat abstractor according to claim 1; It is characterized in that; Described snoot (24) comprises the reflection cavity (241) of a taper; The bottom central in the front of described reflection cavity (241) is provided with the perforation hole (242) of confession described LED luminescence unit (a 25) reflection ray, and described heat abstractor (243) is arranged on the back side of described reflection cavity (241) and is fixedly connected with described reflection cavity (241).

3. the LED flashlight of band heat abstractor according to claim 2 is characterized in that, described heat abstractor (243) comprises the heat radiation array that is made up of radiating fin (2431).

4. the LED flashlight of band heat abstractor according to claim 3 is characterized in that, described radiating fin (2431) and described reflection cavity (241) are the machine-shaping of aluminium alloy one.