CN202442195U

CN202442195U - Perforated over-current LED lamp

Info

Publication number: CN202442195U
Application number: CN2011204831294U
Authority: CN
Inventors: 刘继胜; 刘平; 浦秋霞
Original assignee: Suzhou Zhongze Optoelectronics Technology Co Ltd
Current assignee: Suzhou Zhongze Optoelectronics Technology Co Ltd
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2012-09-19
Anticipated expiration: 2021-11-18

Abstract

The utility model disclose a perforated over-current LED lamp which is composed of a radiator, an LED light source, a driving power supply and a lens, wherein the radiator is manufactured to have a perforated grid pattern, the lens of the lamp is arranged on a heat transfer substrate which is in the central part of the radiator thus to form a light source chamber between the lens and the heat transfer substrate, the LED light source is disposed in the light source chamber and arranged close to the heat transfer substrate, the driving power supply is disposed in an electric apparatus box which is fixedly connected on the back of the radiator in an integral manner, output ends of the driving power supply are respectively connected with a positive and a negative poles of the LED light source, an input lead is connected with an input end of the driving power supply through a threading pipe on the electric apparatus box, and a lamp installation support is connected and fixed on the frame of the radiator. The perforated over-current LED lamp is applicable to various lighting occasions, especially to inflammable and explosive locations to serve as an explosion-proof lamp. Air natural convective circulation is adopted due to a design of a radiator with a via hole structure to accelerate heat dissipation to the maximum and the radiator is designed to be separate from the electric apparatus box to make the driving power supply to be far away from the LED heat source, thereby ensuring long service life and reliability of the driving power supply.

Description

A kind of perforation overcurrent LED light fixture

Technical field

The utility model relates to a kind of LED light fixture, and definite says so a kind of perforation overcurrent LED light fixture of radiator and electric appliance box independent design.

Background technology

Because LED belongs to solid-state cold light source, have the electro-optical efficiency height, caloric value is little, power consumption is little, operating voltage belongs to advantages such as safe low-voltage, long service life, so large power white light LED is a kind of very desirable electric light source of explosion-proof lamp.LED illumination application product has related to a plurality of lighting fields at present; Like road lighting, Landscape Lighting, tunnel illumination and room lighting etc.; And the explosion-proof type LED light fixture that is applied to occasions such as oil, chemical industry, mining site rarely has application; Even it also is that traditional explosion-proof lamp transformation forms that a small amount of LED explosion-proof lamp is arranged, be not optimized design according to the LED characteristic.

LED Design of Luminaires emphasis often concentrated in the LED heat radiation in the past; Through scientific and technological person's unremitting effort in recent years multiple cooling system solution has been proposed in succession; Really the LED thermal management is the emphasis and the difficult point of LED Design of Luminaires, but another very big restraining factors are often ignored by everybody, i.e. the life problems of LED driving power; Even the chief-criminal arch-criminal who causes a large amount of now LED light fixtures to be become old and weak before one's age is exactly the inefficacy in advance of LED driving power; This also causes the distrust of the public for the LED light fixture to a certain extent, and well-known, the LED driving power is along with its life-span of rising of operating temperature will sharply descend; 10 ℃ of life-spans of common every rising will shorten half the; The led light source life-span is usually more than 10 years, and the LED driving power life-span generally is lower than 5 years, sometimes since temperature factor or other improperly its life-span of environment for use often shorter; Therefore how controlling and reduce LED driving power operating temperature also is the emphasis in the LED Design of Luminaires, also is one of key technology that concerns LED light fixture service life.

Summary of the invention

In order to address the above problem, the utility model provides a kind of perforation overcurrent LED light fixture with radiator and electric appliance box independent design, thereby can be applicable to multiple illumination occasion, is specially adapted to the explosion-proof lamp in place such as inflammable and explosive.

The utility model for the technical scheme that solves its technical problem and adopt is:

A kind of perforation overcurrent LED light fixture; Be made up of radiator, led light source, driving power and lens four big parts, it is latticed that radiator is processed perforation, and the setting of light fixture lens is installed on the heat transfer substrate of radiator center; It forms light-source chamber between the two; Led light source places in the light-source chamber and is close to heat transfer substrate and installs, and driving power places the interior overall fixed of electric appliance box to be connected in the radiator back side, and the driving power output connects the led light source both positive and negative polarity respectively; Its input lead is connected in the driving power input via the penetration pipe on the electrical equipment box, and the lamp installation support is connected on the radiator frame and fixes.

Described radiator is processed by the high thermal conductivity alloy material; The whole perforation network that forms, its center is the heat transfer substrate installed surface, heat transfer substrate circumferential distribution fin; It is latticed that the interlaced back of each fin forms perforation; The fin periphery is connected in outer rim, and the lamp installation hanger is set on the outer rim, and the radiator back side is provided with bolt hole and the penetration pipe that is connected with electric appliance box.

Described heat transfer substrate installed surface is passed to fin in order to the heat that is fixedly connected led light source and lampshade and LED is produced, and led light source, lampshade installing hole and through wires hole are set on it.

Described fin can be plane or curved surface, is connected in heat transfer substrate after intersecting each other, the general aluminium alloy of material, albronze or titanium magnadure class high thermal conductivity alloy material.

Described led light source is that LED package forms, and comprises light-emitting area, thermal conductive surface and positive and negative electrode, and thermal conductive surface needs to be close to installation with the radiator heat-conducting substrate, is convenient to the rapid transmission of heat, and positive and negative electrode connects the driving power output.

Described lens are processed equal thickness guard shield or non-equal thickness light-distribution lens by resin material or glass; Have mechanical strength and chemical stability preferably; Select the different light fixture guard shield of design can make light fixture realize different functions; Can be used for searchlight and indicate model etc. such as narrow angle luminous intensity distribution, wide-angle light-distribution is used for occasions such as illumination and floodlight, and some asymmetric luminous intensity distributions can be used for special occasions.

Described electric appliance box is installed togather by connecting base plate, main cartridge and headkerchief in order; Electric appliance box is connected in the radiator back side based on connecting base plate; The main cartridge upper end is provided with terminals, and terminals are provided with takes over interface and connection jaws, and connection jaws is by the chimeric sealing of headkerchief.

Described driving power is a constant-current driving power supply, output electrical quantity and led light source coupling, and its function is to change alternating current into be fit to the LED operate as normal Constant Electric Current, and controls its electric current on suitable operating point.

The beneficial effect of the utility model is:

This utility model can be applicable to multiple illumination occasion; Except that being used for general lightings such as square, workshop, garage, also can be applicable to inflammable and explosive occasion, replace traditional bulkhead lamp capable and explosion-proof lamp and have advantages such as efficient energy-saving, extra long life, radiator is set to the via hole network and can air between radiating module is formed the free convection circulation and need not the external force effect; Greatly limit improves radiating efficiency; Reduce the LED working junction temperature, the raising of radiating efficiency simultaneously reduces the use of heat sink material from another aspect, can practice thrift the light fixture manufacturing cost; Electric appliance box separates independent design with radiator and helps managing independently of heat; The electric appliance box outside is provided with radiating ribs can make driving power be operated under the lower temperature conditions, helps ensureing LED driving power working life, and then guarantees the safe and reliable and long-life of LED light fixture.

Description of drawings:

Fig. 1 is heat spreader structures view (back side);

Fig. 2 is heat spreader structures view (front);

Fig. 3 is an electric appliance box box body sketch map;

Fig. 4 is electric appliance box assembling sketch map;

Fig. 5 is the utility model assembling sketch map I;

Fig. 6 is the utility model assembling sketch map II;

Fig. 7 is the utility model structural representation.

Indication legend in the accompanying drawing

1, radiator 11, heat transfer substrate 12, fin 13, flowing hole 14, lamp installation hanger

15, bolt hole 16, penetration pipe 2, led light source 3, driving power 4, lens

5, connect base plate 6, main cartridge 61, housing 62, radiating ribs 63, engaging lug

64, take over interface 7, headkerchief 8, gland 9, lamp installation support

The specific embodiment

Like Fig. 1, shown in 2: radiator 1 is formed by the die casting of high thermal conductivity alloy material and is aided with suitable machining; The general aluminium alloy of material, albronze or titanium magnadure class high thermal conductivity alloy material; The whole perforation network that forms, its center is a heat transfer substrate 11, the heat transfer substrate outer surface is an installed surface; Be passed to fin in order to the heat that is fixedly connected led light source and lampshade and LED is produced, led light source, lampshade installing hole and through wires hole are set on it.Heat transfer substrate circumferential distribution fin 12; Fin can be plane or curved surface; Be connected in heat transfer substrate after intersecting each other, the interlaced back of each fin forms flowing hole 13, and the fin periphery is connected in the radiator outer rim; Lamp installation hanger 14 is set on the outer rim, and the radiator back side is provided with bolt hole 15 and the penetration pipe 16 that is connected with electric appliance box.

As shown in Figure 3: main cartridge 6 high thermal conductivity alloy material; Its main body is a semi-surrounding housing 61; Hull outside is established radiating ribs 62, and the shell nozzle edge arranges that evenly engaging lug 63 is used for the fixed connection between each parts, and the housing upper end is provided with terminals; Terminals comprise takes over interface 64 and connection jaws, and connection jaws is by the chimeric sealing of headkerchief.

As shown in Figure 4: electric appliance box is installed togather by connecting base plate 5, main cartridge 6 and headkerchief 7 in order, and electric appliance box is connected in the radiator back side based on connecting base plate.

Led light source 2 comprises light-emitting area, thermal conductive surface and positive and negative electrode for LED package forms, and thermal conductive surface needs to be close to installation with the radiator heat-conducting substrate, is convenient to the rapid transmission of heat, and positive and negative electrode connects the driving power output.

Driving power 3 is a constant-current driving power supply, output electrical quantity and led light source coupling, and its function is to change alternating current into be fit to the LED operate as normal Constant Electric Current, and controls its electric current on suitable operating point.

Lens 4 are processed equal thickness guard shield or non-equal thickness light-distribution lens by resin material or glass; Have mechanical strength and chemical stability preferably; Select the different light fixture guard shield of design can make light fixture realize different functions; Can be used for searchlight and indicate model etc. such as narrow angle luminous intensity distribution, wide-angle light-distribution is used for occasions such as illumination and floodlight, and some asymmetric luminous intensity distributions can be used for special occasions.

Like Fig. 5,6, shown in 7: a kind of perforation overcurrent LED light fixture is made up of radiator 1, led light source 2, driving power 3 and lens 4 four big critical pieces; Also comprise by connecting accessories such as electric appliance box that base plate 5, main cartridge 6 and headkerchief 7 constitute and gland 8, lamp installation support 9; The setting of light fixture lens is installed on the heat transfer substrate of radiator center and is fixed by gland; Encapsulation process makes and forms light-source chamber between lens and heat transfer substrate; Led light source places in the light-source chamber and is close to heat transfer substrate and installs, and is coated with heat-conducting cream fat in case of necessity therebetween, and driving power is fixedly installed in the electric appliance box; The electric appliance box overall fixed is connected in the radiator back side; The driving power output connects the led light source both positive and negative polarity respectively, and its input lead is connected in the driving power input via the penetration pipe on the electrical equipment box, and the lamp installation support is connected on the radiator frame and fixes.

Claims

1. perforation overcurrent LED light fixture; Be made up of radiator, led light source, driving power and lens four big parts, it is characterized in that: it is latticed that radiator is processed perforation, and the setting of light fixture lens is installed on the heat transfer substrate of radiator center; It forms light-source chamber between the two; Led light source places in the light-source chamber and is close to heat transfer substrate and installs, and driving power places the interior overall fixed of electric appliance box to be connected in the radiator back side, and the driving power output connects the led light source both positive and negative polarity respectively; Its input lead is connected in the driving power input via the penetration pipe on the electrical equipment box, and the lamp installation support is connected on the radiator frame and fixes.

2. a kind of perforation overcurrent LED light fixture according to claim 1, it is characterized in that: described radiator is processed by the high thermal conductivity alloy material, the whole perforation network that forms; Its center is the heat transfer substrate installed surface; Heat transfer substrate circumferential distribution fin, it is latticed that the interlaced back of each fin forms perforation, and the fin periphery is connected in outer rim; The lamp installation hanger is set on the outer rim, and the radiator back side is provided with bolt hole and the penetration pipe that is connected with electric appliance box.

3. a kind of perforation overcurrent LED light fixture according to claim 2 is characterized in that: described heat transfer substrate installed surface is provided with on it led light source and lampshade is installed.

4. a kind of perforation overcurrent LED light fixture according to claim 2, it is characterized in that: described fin can be plane or curved surface.

5. a kind of perforation overcurrent LED light fixture according to claim 1, it is characterized in that: described led light source is that LED package forms, and comprises light-emitting area, thermal conductive surface and positive and negative electrode.

6. a kind of perforation overcurrent LED light fixture according to claim 1, it is characterized in that: described lens are processed equal thickness guard shield or non-equal thickness light-distribution lens by resin material or glass.

7. a kind of perforation overcurrent LED light fixture according to claim 1; It is characterized in that: described electric appliance box is installed togather by connecting base plate, main cartridge and headkerchief in order; Electric appliance box is connected in the radiator back side based on connecting base plate; The main cartridge upper end is provided with terminals, and terminals are provided with takes over interface and connection jaws, and connection jaws is by the chimeric sealing of headkerchief.

8. a kind of perforation overcurrent LED light fixture according to claim 1, it is characterized in that: described driving power is a constant-current driving power supply, output electrical quantity and led light source coupling.