CN202383402U

CN202383402U - Photographing light supplement device

Info

Publication number: CN202383402U
Application number: CN2011205207999U
Authority: CN
Inventors: 凡魏
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-14
Filing date: 2011-12-14
Publication date: 2012-08-15
Anticipated expiration: 2021-12-14

Abstract

The utility model discloses a photographing light supplement device, which comprises a light distribution system, a heat dissipation system and a control circuit providing a driving power supply for the light distribution system, wherein the heat dissipation system comprises a heat dissipation substrate, at least one heat pipe connected with the heat dissipation substrate, at least one heat dissipation fin connected with the heat pipe, and a heat dissipation shell covering the heat dissipation fin, and the upper part and the lower part of the heat dissipation shell are provided with at least one group of vent holes. The structure of the heat dissipation shell with upper and lower vent holes is adopted, and air near the heat dissipation fin forms a natural convection heat dissipation mode between the vent hole and the heat dissipation fin after being heated, so that the photographing light supplement device disclosed by the utility model has a good and stable heat dissipation effect and a simple structure.

Description

A kind of photograph light compensating apparatus

Technical field

The utility model relates to a kind of lighting device, relates in particular to a kind of LED photograph light compensating apparatus.

Background technology

Along with the fast development of urban transportation system, a large amount of utilization video cameras are as front-end collection equipment in intelligent transportation and the safe city, and the need of work of these equipment adopts the light filling system to solve the lighting problem that video camera was taken at night.LED is as a kind of novel light source; Characteristics with energy-conserving and environment-protective; And the luminous time can be controlled arbitrarily continuously, becomes the perfect light source in the photograph light filling technology, and LED is accompanied by heat release in luminescence process; Overheatedly can produce adverse influence to its performance and life-span, therefore good heat-sinking capability is that great power LED can operate as normal and long-life important leverage.

A kind of radiating mode of high-powered LED lamp is to adopt heat pipe for thermal conductivity; Installation fins on heat pipe, but this structure radiating effect is still not good, and the mode that perhaps adds the fan blowing strengthens heat radiation; But this method makes radiator structure complicated, and possibly lose efficacy because of fan failure causes the LED lamp.

Summary of the invention

The technical matters that the utility model will solve provides a kind of good heat dissipation effect, stable and photograph light compensating apparatus simple in structure.

For solving the problems of the technologies described above; The photograph light compensating apparatus that the utility model adopts comprises: light distributing system, cooling system and the control circuit of driving power is provided to light distributing system; Said light distributing system comprises the reflector that is used to collect surplus light, the integrated form high-powered LED lamp that is installed in the reflector top and the optical lens that is installed in the peristome of reflector, and the light that the LED lamp sends sees through optical lens again and sends after the reflector reflection; At least one heat pipe, at least one radiating fin that is connected with heat pipe that said cooling system comprises heat-radiating substrate, be connected with heat-radiating substrate and the heat-dissipating casing that is enclosed within the radiating fin outside; The upper and lower of heat-dissipating casing has one group of air vent at least; Heat-radiating substrate is mounted on said integrated form high-powered LED lamp; The heat that the LED lamp produces is delivered to heat pipe through heat-radiating substrate, heat pipe again with heat transferred to radiating fin, pass near air through radiating fin again; Heated air flows out from air vent, and heat is distributed rapidly; Said control circuit is connected to driving power on the LED lamp through electric wire, and control LED lamp is luminous.

Adopt this heat-dissipating casing that has the upper and lower air vent; After near the radiating fin air was heated, hot-air relied on buoyancy to move upward and discharges through the overdraught hole, formed negative pressure in the heat-dissipating casing cavity; Cold air sucks from the leg space ventilation hole and is continued heating; Thereby formed a kind of natural heat loss through convection pattern between upper and lower air vent and the radiating fin, so good heat dissipation effect, and this structure is autonomous heat radiation; Not needing increases other device in addition, so radiating effect is stable and simple in structure.

The xsect of above-mentioned heat-dissipating casing can be annular; The inwall size of radiating fin size and heat-dissipating casing is corresponding and be provided with arcuate indentation in the upper and lower; Because the upper and lower of radiating fin is jagged; Strengthened the space between radiating fin and the heat-dissipating casing inwall, strengthened the natural convection effect of air, thereby strengthened radiating effect.

Above-mentioned heat pipe can be U type heat pipe; The horizontal segment of U type heat pipe is connected with substrate; Have on the radiating fin and corresponding hole, U type heat pipe position; The vertical section of U type heat pipe closely cooperates through hole and radiating fin, and the vent locations of heat-dissipating casing can be strengthened radiating effect near the vertical section of U type heat pipe.

The outer wall of above-mentioned heat-dissipating casing can be provided with along the axial rib of heat-dissipating casing; With further reinforcement radiating effect; The top of heat-dissipating casing can also be provided with a protective cover, prevents that dust or rainwater from falling into cavity, has the space between the air vent on this protective cover and heat-dissipating casing top.

Description of drawings

Fig. 1 is the principal section synoptic diagram of the utility model photograph light compensating apparatus embodiment one;

Fig. 2 is the right diagrammatic cross-section of structure shown in Figure 1;

Fig. 3 is the interarea partial cutaway schematic of the utility model photograph light compensating apparatus embodiment two;

Fig. 4 is the right diagrammatic cross-section of structure shown in Figure 3;

Wherein: protective cover 4, reflector 11, collection lens 12, led light source 13, optical lens 14, packing ring 15; Front end end cover 16, preceding end housing 17, heat-radiating substrate 21, heat pipe 22, radiating fin 23, heat-dissipating casing 24; Air vent 25, arcuate indentation 26, rib 27, rear end cap 31, control circuit board 32, hole 221.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further specified;

Fig. 1 is the principal section synoptic diagram of the utility model photograph light compensating apparatus embodiment one, and Fig. 2 is the right diagrammatic cross-section of structure shown in Figure 1; High-power LED light source 13 outsides are fitted with collection lens 12; Their integrant high-powered LED lamps; High-powered LED lamp is fixedly mounted on the packing ring 15 with reflector at the top of reflector 11, and optical lens 14 is installed in the peristome of reflector 11 through front end end cover 16 and preceding end housing 17; The light that led light source 13 sends is assembled by collection lens 12, after reflector 11 reflections, outwards sends through optical lens 14 together; High-power LED light source 13 is mounted on the heat-radiating substrate 21, and heat-radiating substrate 21 is fixedly mounted on the packing ring 15, and heat-radiating substrate 21 is processed by the good material of thermal conductivity; Like copper or aluminium; Heat-radiating substrate 21 shapes can be circle or square block, can design Baltimore groove in a side that mounts led light source 13, and heat pipe 22 is the U type; The horizontal segment of U type heat pipe 22 is connected with heat-radiating substrate 21; Have on the radiating fin 23 and corresponding hole 221, U type heat pipe 22 positions, the vertical section of U type heat pipe 22 closely cooperates through hole 221 and radiating fin 23, the sheet that radiating fin 23 is processed for the good material of thermal conductivity such as copper or aluminium; The outside of radiating fin 23 is with heat-dissipating casing 24, and heat-dissipating casing 24, packing ring 15 and preceding end housing 17 are in the same place through bolts assemblies; The top and the bottom of heat-dissipating casing 24 are provided with air vent 25 respectively, and the xsect of heat-dissipating casing 24 is an annular, and the inwall sizes of radiating fin 23 size and heat-dissipating casing 24 are corresponding and cut a part at an upper portion thereof and at a lower portion thereof and formed arcuate indentation 26; Control circuit is realized that by control circuit board 32 control circuit board 32 is installed on the rear end cap 31, and connecting to the LED lamp through electric wire provides driving power.

Fig. 3 is the principal section synoptic diagram of the utility model photograph light compensating apparatus embodiment two; Fig. 4 is the right diagrammatic cross-section of structure shown in Figure 3; Different with embodiment one is; The outer wall of heat-dissipating casing 24 is provided with along the axial rib 27 of heat-dissipating casing, and a protective cover 4 is arranged above the heat-dissipating casing 24, has certain gap between the air vent 25 of protective cover 4 and heat-dissipating casing 24.

The utility model is not limited to Fig. 1 to structure embodiment illustrated in fig. 4; The air vent 25 of heat-dissipating casing 24 can be circular, rectangle, also can be slit shape, or even the perforate of whole top and the bottom; The xsect of heat-dissipating casing 24 can also be oval or square other shape that waits, and radiating fin 23 also can be other shape, and its barbed portion can also cave in.

Claims

1. photograph light compensating apparatus; Comprise light distributing system, cooling system and the control circuit of driving power is provided to light distributing system; The integrated form high-powered LED lamp at the top that said light distributing system comprises the reflector that is used to collect surplus light, be installed in reflector and be installed in the optical lens of the peristome of reflector; Said cooling system comprises heat-radiating substrate, at least one heat pipe that is connected with heat-radiating substrate and at least one radiating fin that is connected with heat pipe; Heat-radiating substrate is mounted on said integrated form high-powered LED lamp, and said control circuit is connected with the integrated form high-powered LED lamp through electric wire, and it is characterized in that: said cooling system also comprises a heat-dissipating casing; Heat-dissipating casing is enclosed within the outside of radiating fin, has one group of air vent at least in the upper and lower of heat-dissipating casing.

2. photograph light compensating apparatus according to claim 1 is characterized in that: the xsect of said heat-dissipating casing is an annular, and said radiating fin is for corresponding with the inwall size of heat-dissipating casing and be provided with breach in the upper and lower.

3. photograph light compensating apparatus according to claim 2; It is characterized in that: said heat pipe is a U type heat pipe; Have on the said radiating fin and corresponding hole, U type heat pipe position; The vertical section of U type heat pipe closely cooperates through hole and radiating fin, and the horizontal segment of U type heat pipe is connected with substrate, and the vent locations of said heat-dissipating casing is near the vertical section of U type heat pipe.

4. according to each described photograph light compensating apparatus of claim 1 to 3, it is characterized in that: the outer wall of said heat-dissipating casing is provided with along the axial rib of heat-dissipating casing.

5. photograph light compensating apparatus according to claim 4 is characterized in that: a protective cover is arranged at the top of said heat-dissipating casing, has the space between this protective cover and the heat-dissipating casing.