CN208595437U

CN208595437U - A kind of active heat removal LED light

Info

Publication number: CN208595437U
Application number: CN201820663647.6U
Authority: CN
Inventors: 葛世潮; 林韵强
Original assignee: ZHEJIANG LEDISON OPTOELECTRONICS CO Ltd
Current assignee: ZHEJIANG LEDISON OPTOELECTRONICS CO Ltd
Priority date: 2018-05-07
Filing date: 2018-05-07
Publication date: 2019-03-12
Anticipated expiration: 2028-05-07

Abstract

The utility model provides a kind of active heat removal LED light, and the active heat removal LED light includes LED chip, lamp cap and protective cover；LED lamp, the LED lamp include at least one LED light-emitting section, and the LED light-emitting section includes substrate, and the LED chip setting is on the substrate；One end far from the lamp cap of the protective cover is arranged in gas vent, the gas vent；Gas feed, one end that the protective cover faces the lamp cap is arranged in the gas feed, or is arranged between the protective cover and lamp cap；Fan, the fan are arranged on the gas passage formed between the gas feed and gas vent；Block body, the block body penetrate the light that the LED light-emitting section issues, and the block body is fixed on the protective cover；Has many advantages, such as gap between the protective cover and block body, the gas vent, which at least partly falls in the utility model on the block body in the projection on the block body, has that good heat dissipation, output light flux is big, luminous efficiency is high, at low cost, light-weight.

Description

A kind of active heat removal LED light

Technical field

The utility model relates to LED light, in particular to the active heat removal LED light of a kind of high light flux.

Background technique

The middle low power lamp that the passive heat radiating LED lamp of the gaseous exchange of the prior art arrives 2000Lm mainly for the manufacture of tens, It is also difficult to that the high-power high-luminous flux lamp of thousands of to tens of thousands of Lm is made.

The high light flux high-powered LED lamp of the prior art, such as 10KLm grades of lamp, be all with high-power LED chip directly or It is pasted on the metal heat sink with radiating fin by a MPCB (metal-based circuit board), when LED operation generates Heat diffused in air through radiating fin；Since the heat that lamp power is big, generates is big, required metal heat sink is very big very Weight, so that this kind of LED light needs is safety belt, falling off to prevent lamp injures pedestrian by a crashing object, whole lamp and installation all increase cost；Cause whole lamp Weight is big, volume is big, at high cost, not safe.

The another kind of high light flux LED light of the prior art is metal heat sink power-up fan, and fan accelerates metal heat sink Radiating fin between air flowing, to accelerate to radiate, the volume and weight of whole lamp can be reduced；This fan forced air is wandering The effect of heat is much better than simple finned metal heat sink；The fin density of certain radiators of the prior art is very high, fin Area is very big, it appears that heat dissipation area is very big, and heat dissipation effect should be fine, but in fact, if the gas between fin does not flow It is dynamic, since stationary gas is good heat guard, there is the circle for only there was only radiator periphery of actual contribution to heat dissipation, in The radiating fin in portion performs practically no function；If plus a fan, flow the air between fin, heat dissipation effect will significantly improve；Mesh It is preceding to have there is this kind of product selling；But the noise and life problems that can generally worry fan, user it, in fact, flat The problems such as development that small radiator fan is needed with the heat dissipation of the CPU of the mobile devices such as tablet computer, noise and service life, is all There is good improvement.

The high light flux LED light of this two classes prior art requires the metal heat sink with fin, and radiator fins are sudden and violent In air, the pollution layers such as dust accumulation angstrom oil gas are assembled on long-time service, fin surface to dew, are reduced the heat dissipation effect of fin, are influenced LED The service life of lamp, especially in outdoor occasions such as road lightings.

The high light flux LED light of this two classes prior art alternatively existing Metal halogen lamp, sodium vapor lamp etc., its advantage is that having more Long service life, the selectable light color temperature of wider range, higher colour rendering index and higher luminous efficiency, lamp on and off After can start at once, without waiting for about starting after ten minutes, can be used for the illumination such as workshop, hypermarket, hall, square, road.

The high light flux LED light of this two classes prior art has been used for road lighting, and street lamp, garden lamp etc. is made；But For requiring bulky metal heat sink, it is difficult to standardize, one sample of a factory, maintenance replacement cannot be as sodium vapor lamp, light bulb Be broken more to change the bulb at the scene；Meanwhile at present this kind of LED light cost is too high, weight is too big, actual life not Enough ideals are promoted slow.

In addition, this existing two classes high light flux LED light is all to be pasted on metal heat sink to make with high-power LED chip Be both less than 2 π at the light solid angle that goes out of, LED chip, LED light can not comprehensive 4 π go out light, the luminous efficiency of lamp is generally less than 100Lm/W。

Utility model content

In order to solve the deficiency in above-mentioned prior art, the utility model provides a kind of good heat dissipation effect, cost The active heat removal high light flux LED light low, light-weight, small in size, luminous efficiency is high.

The purpose of this utility model is achieved through the following technical solutions:

A kind of active heat removal LED light, the active heat removal LED light include LED chip, lamp cap and protective cover；The active Heat radiating LED lamp further comprises:

LED lamp, the LED lamp include at least one LED light-emitting section, and the LED light-emitting section includes substrate, described LED chip is arranged on the substrate；

One end far from the lamp cap of the protective cover is arranged in gas vent, the gas vent；

Gas feed, one end that the protective cover faces the lamp cap is arranged in the gas feed, or is arranged in institute It states between protective cover and lamp cap；

Fan, the fan are arranged on the gas passage formed between the gas feed and gas vent；

Block body, the block body penetrate the light that the LED light-emitting section issues, and the block body is fixed on the gas of the protective cover The top of outlet；There is gap, to guarantee that the gas of gas outlet outflow smoothly flows out between the protective cover and block body；The gas Body outlet is at least partly fallen on the block body in the projection on the block body；

It can permanently be fixed between the block body and protective cover gas outlet, for example with rivet or glue, or removably, for example Use screw；

Compared with prior art, the utility model has the beneficial effect that

1. good heat dissipation effect.

It is not necessary that the pipeline for carrying LED chip is arranged in protective cover, fan driving under, outside air from gas into Mouth enters in protective cover, to will be conducted by LED chip to substrate (radiating surface that the surface of entire substrate is LED chip) Heat is taken away, and is discharged from gas vent；In addition, gaseous exchange and conduction without source heat-dissipating, heat dissipation effect is more preferable, can be made into several Thousand to tens of thousands of Lm high light flux active heat removal LED light replaces Metal halogen lamp, sodium vapor lamp, high-pressure sodium lamp, high-power energy-saving fluorescent lamp Deng for the illumination such as workshop, hypermarket, hall, square, road；

2. luminous efficiency is high.

LED chip and active heat removal LED light are that 4 π go out light, and the light that LED chip issues can nearly all go out without being blocked Penetrate, the external quantum efficiency of LED is high, and the luminous efficiency of filament lamp is high, efficiency it is higher by 30% than the LED light that 2 π of the prior art goes out light with On；

3. structure is simple, at low cost.

Without bulky metal heat sink, the light weight and cost of lamps and lanterns is low；The fan of active heat removal is formed with LED chip Filament series connection, and with voltage-stabiliser tube parallel connection, without individually being powered with transformer, it is specified that the voltage of the voltage-stabiliser tube is smaller than fan Voltage, noise is small, long service life, high-efficient；

4. protecting effect is good.

Block body effectively prevents extraneous touching LED chip and live part, effectively guarantees safety.

Detailed description of the invention

Referring to attached drawing, the disclosure of the utility model will be easier to understand.Skilled addressee readily understands that Be: these attached drawings are used only for illustrating the technical solution of the utility model, and are not intended to the protection to the utility model Range is construed as limiting.In figure:

Fig. 1 is the structural schematic diagram of the active heat removal LED light of the utility model embodiment；

Fig. 2 is the cross section structure schematic diagram of the LED light-emitting section of Fig. 1 active heat removal LED light；

Fig. 3 is the Section A-A structural schematic diagram of Fig. 1 active heat removal LED light；

Fig. 4 is the circuit diagram of the active heat removal LED light of the embodiments of the present invention.

Specific embodiment

Fig. 1-4 and following description describe the optional embodiments of the utility model how to instruct those skilled in the art Implement and reproduce the utility model.In order to instruct technical solutions of the utility model, it has simplified or omitted some conventional aspects.This Field technical staff should be understood that the variation or replacement from these embodiments will be in the scope of the utility model.This field Technical staff should be understood that following characteristics can be combined in various ways to form multiple modifications of the utility model.As a result, originally Utility model is not limited to following optional embodiments, and is only limited by the claims and their equivalents.

Embodiment 1:

Fig. 1 schematically illustrates the structure diagram of the active heat removal LED light of the utility model embodiment, as shown in Figure 1, The active heat removal LED light includes:

Protective cover 21, LED lamp are arranged in the protective cover, protect the LED lamp to keep out foreign impacts；It is described Protective cover can be through the material of LED light-emitting section emergent light (emergent light is from chip and luminescent powder) by glass, plastics or ceramics etc. It is made, can be transparent, milky white, frosted, coloured or have decorative pattern, shape for shapes such as Metal halogen lamp, sodium vapor lamp, incandescent lamps or can press Need design shape；One end of the protective cover is fixedly connected with lamp cap；

The top of the protective cover 21, such as through-hole is arranged in gas vent 22, the gas vent 22；

Gas feed 23, the gas feed 23 are arranged far from gas vent 22, and protective cover 21 is such as arranged in faces lamp One end of head, at least one through-hole is using as gas feed, shape such as prolate rectangle, ellipse, prevent the insects such as moth into Enter；Such as, it is arranged on connector 81, the protective cover 21 is fixedly connected by the connector 81 with lamp cap 91；It may also set up In one end of protective cover；The present embodiment uses connector gas feed and is arranged on connector 81；

Fan 51, the setting of fan 51 is in described 21 one end of protective cover or is arranged in connector 81, is in gas On the gas passage formed between import 23 and gas vent 22；

Block body 31, the light that the block body 31 is issued through the LED light-emitting section, the block body 31 are fixed on the protective cover On 21；Have gap so that the gas flowed out from gas vent smoothly flows out outside lamp between the protective cover 21 and block body 31, institute It states gas vent 22 at least partly to fall on the block body 31 in the projection on the block body 31, as projection fully falls in block body On；

LED lamp includes:

At least one LED light-emitting section 41, as shown in Fig. 2, the LED light-emitting section 41 includes substrate 42, LED chip 43 and hair Light bisque 44, shown chip and luminous bisque are arranged on substrate center or close to one side, have for wide substrate, setting on one side Conducive to light out and heat dissipation, the LED chip is 2 π or 4 π go out light, and specific structure and working method are the state of the art, Details are not described herein；The LED chip is serially connected through connecting line, is in parallel or series-parallel；The substrate 42 uses high thermal conductivity Material, and preferably to the material (it is of course also possible to opaque) of LED chip emergent light light transmission, such as glass, plastics, ceramics；It is multiple LED chip 43 is fixed on the substrate 42, and the bisque 44 that shines covers the LED chip；When substrate light transmission, the substrate Also there is luminous bisque back to the side of LED chip mounting surface, luminous bisque is not all standing side, but makes LED core Projection of the piece on the side entirely falls within the luminous bisque of the side in the projection on the side；

First conducting ring 71, one end of LED light-emitting section are fixed on first conducting ring and are electrically connected, and the first electricity is drawn Line 73 is fixed on first conducting ring；The bracket 61 supports first conducting ring 71；

Second conducting ring 72, the other end of LED light-emitting section are fixed on second conducting ring 72 and are electrically connected, the second electricity Lead-out wire 74 is fixed on second conducting ring；Described first electric lead-out wire and the second electric lead-out wire are electrically connected with driver 10 It connects；The LED light-emitting section 41 being fixed on the first conducting ring 71 and the second conducting ring 72 can be parallel with one another, series connection or series-parallel； Fig. 1 show example in parallel；

Connector 81, the protective cover are fixed on the lamp cap by connector；

Bracket 61, the bracket 61 are arranged in connector, the fixed fan 51 in one end, and other end support is described by multiple The LED lamp that several LED light-emitting sections 41 are constituted；

Driver 10, as shown in figs. 1 and 4, the driver connect external power 17 by electric connector 11 through connecting line 16, And drive the fan and LED light-emitting section；Second conducting ring 72 is directly connected to the defeated of driver 10 by the second electric lead-out wire 74 Out, the first conducting ring 71 connects fan by the first electric lead-out wire 73；Fan 51 connects the output of driver 10 through connecting line 75； The fan 51 connects with LED chip, shunt regulator tube 18 simultaneously, can also shunt capacitance 19 again, to guarantee its operation is stable, institute The voltage for stating voltage-stabiliser tube 18 can be lower than the voltage rating of fan 51, such as within low 30%, to guarantee 51 low noise of fan and have It can be with the LED life matched long-life；

Electric connector, that is, lamp cap 11, the driver 10 are arranged in the lamp cap 11.

The working method of the above-mentioned active heat removal LED light of the utility model embodiment are as follows:

The LED chip and luminescent powder being fixed on substrate shine, and emergent light penetrates the protective cover and block body；

The heat that the LED chip generates is conducted to the substrate, heat dissipation of the surface of entire substrate as LED chip Face；

Under fan effect, outside air enters in protective cover from gas feed, substrate is purged, to take away heat, most It is discharged afterwards from the gas vent of protective cover, air-flow is as shown in figure 1 shown in 76.

Reached according to embodiment 1 and had an advantage that: the heat that LED chip generates is conducted to the substrate of large area, heat Fraction by the air transmitted in protective cover to protective cover, and be dispersed into the external world；The major part of heat is by gas passage The air of flowing is taken away, and protective cover is finally discharged；The heat for being generated LED chip by modes such as various conduction, convection current is timely Ground is taken out of in protective cover, without metal heat sink, improves the luminous flux of whole lamp.

The fan is connected with LED chip, and only 5--12V, operating voltage can be by parallel with fan for the operating voltage of fan Voltage-stabiliser tube adjust and set, to guarantee low noise and the long-life of fan；The operating voltage of fan is only the hundred of filament voltage / several, the power very little of consumption, and without individually being powered to fan with transformer, whole lamp is high-efficient.

Embodiment 2:

According to the application examples of the active heat removal LED light of the utility model embodiment 1.

In the application examples, as shown in figure 3, using the width of the substrate of translucent material for greater than 3mm, LED light-emitting section edge Being arranged radially for the protective cover, and be parallel to the central axis of the protective cover；LED light-emitting section is inside and outside two circle, internal layer Light-emitting section and outer layer light-emitting section are arranged alternately；The protective cover that faces of the outer layer light-emitting section is arranged in the LED chip On the side of one end, and it is arranged on the side of one end far from the protective cover of the internal layer light-emitting section, that is, adjacent Internal layer light-emitting section and outer layer light-emitting section LED chip between distance it is larger, as shown in Figure 3；The chip of certain internal layer light-emitting section It can also be close to conducting ring side.

Reached according to embodiment 2 and had an advantage that: on the benefit basis of embodiment 1, LED light-emitting section is along protective cover Be arranged radially, and be parallel to the central axis of protective cover, be same as gas flow direction, help to improve gas and substrate is blown It sweeps, to improve heat dissipation effect；Meanwhile the LED chip of adjacent inner layer light-emitting section and outer layer light-emitting section distance is farther out, further mentions High heat dissipation effect.

Above-described embodiment is only illustratively to give outside air to enter in protective cover by gas feed, and from gas Outlet discharge.So-called " gas feed " is only a channel convenient for gas disengaging, be not meant to be only capable of as " into Mouthful " use, naturally it is also possible to it is used as " outlet "；" gas vent " is also as a same reason.

Claims

1. a kind of active heat removal LED light, the active heat removal LED light includes LED chip, lamp cap and protective cover；It is characterized by: The active heat removal LED light further comprises:

LED lamp, the LED lamp include at least one LED light-emitting section, and the LED light-emitting section includes substrate, the LED core Piece is arranged on the substrate；

Gas feed, one end that the protective cover faces the lamp cap is arranged in the gas feed, or is arranged in the guarantor Between shield and lamp cap；

Block body, the block body penetrate the light that the LED light-emitting section issues, and the block body is fixed on the gas vent of the protective cover Top；There is gap, projection of the gas vent on the block body is at least partly between the protective cover and block body It falls on the block body.

2. active heat removal LED light according to claim 1, it is characterised in that: the projection fully falls in the block body On；The substrate width is greater than 3mm.

3. active heat removal LED light according to claim 1, it is characterised in that: the active heat removal LED light is further wrapped It includes:

Connector, the protective cover are fixed on the lamp cap by connector；One end in protective cover is arranged in the fan Or in the connector, the gas feed is arranged on the connector or protective cover.

4. active heat removal LED light according to claim 1, it is characterised in that: the active heat removal LED light is further wrapped It includes:

Bracket, the fixed fan in one end of the bracket, the other end support the LED lamp.

5. active heat removal LED light according to claim 4, it is characterised in that: the LED lamp further comprises:

One end of first conducting ring, the LED light-emitting section is fixed on the first conducting ring and is electrically connected, and the first electric lead-out wire is fixed On first conducting ring；The bracket supports first conducting ring；

The other end of second conducting ring, the LED light-emitting section is fixed on the second conducting ring and is electrically connected, and the second electric lead-out wire is solid It is scheduled on second conducting ring；Described first electric lead-out wire and the second electric lead-out wire are electrically connected by driver with the lamp cap It connects.

6. active heat removal LED light according to claim 5, it is characterised in that: the LED light-emitting section is along the protective cover Be arranged radially.

7. active heat removal LED light according to claim 5, it is characterised in that: the LED lamp includes:

Outer layer light-emitting section, the outer layer light-emitting section are arranged between the first conducting ring, the second conducting ring and protective cover；

The first conducting ring is arranged in, in the region that the second conducting ring surrounds in internal layer light-emitting section, the internal layer light-emitting section.

8. active heat removal LED light according to claim 7, it is characterised in that: the outer layer light-emitting section and internal layer light-emitting section It is arranged alternately.

9. active heat removal LED light according to claim 8, it is characterised in that: the LED chip setting is sent out in the outer layer On the side of one end for facing the protective cover of the substrate of striation, and be arranged in the internal layer light-emitting section substrate it is separate On the side of one end of the protective cover.

10. active heat removal LED light according to claim 1, it is characterised in that: under fan effect, outside air passes through The gas feed enters in protective cover, is discharged from the gas vent；Alternatively, outside air is entered by the gas vent In protective cover, it is discharged from the gas feed.