CN203585944U

CN203585944U - A MR16-LED Spotlight with High Heat Dissipation Performance

Info

Publication number: CN203585944U
Application number: CN201320675726.6U
Authority: CN
Inventors: 徐学武
Original assignee: Dongguan Kingsun Optoelectronic Co Ltd
Current assignee: Dongguan Kingsun Optoelectronic Co Ltd
Priority date: 2013-10-30
Filing date: 2013-10-30
Publication date: 2014-05-07
Anticipated expiration: 2023-10-30

Abstract

The utility model provides a MR16-LED shot-light with high heat dissipating ability, including the lampshade body, LED light source subassembly and power drive subassembly, the power cavity and the light source intracavity that the internal baffle of lampshade formed with, power drive subassembly passes the baffle with the wire and is connected with LED light source subassembly electricity, and the fixed a plurality of radiating fin that is equipped with of peripheral annular of the lampshade body, radiating fin's lower extreme forms a plurality of ventilation hole, the ventilation hole intercommunication the light source cavity, power drive subassembly's top is provided with the lamp holder, is provided with the louvre on the lamp holder, is provided with the convection current through-hole in a plurality of intercommunication power cavity and light source cavity on the baffle, and ventilation hole, convection current through-hole and louvre between intercommunication. The heat dissipation structure enhances the circulation and convection of air in the inner cavity of the spotlight, enables heat generated by the light emission of the LED chip to be quickly conducted out and quickly dissipated into the air, prolongs the service life of the spotlight, and improves the light emitting efficiency of LED chip particles.

Description

A kind of MR16-LED shot-light with high heat dispersion

Technical field

The utility model relates to LED field of illumination lamp technology, refers in particular to a kind of MR16-LED shot-light with high heat dispersion.

Background technology

The MR16 shot-light of LED is consistent with the contour structures of traditional MR16 shot-light for pursuing at present, mostly the power supply circuit board of shot-light is placed in shot-light.Because the inner space of MR16 shot-light is less, will cause like this heat of LED to be easy to just pass to circuit board, electronic component on circuit board will be because of using under the higher environment of temperature for a long time, because the heat dispersion of LED shot-light is not very desirable and too early aging, thereby the luminous efficiency of LED and life-span can be affected.

Utility model content

The utility model provides for the problem of prior art oneplant the MR16-LED shot-light with high heat dispersion, its radiator structure can inside and outsidely produce radiating convection, makes the heat Quick diffusing of the luminous generation of LED in air, can significantly improve the service life of shot-light.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of MR16-LED shot-light with high heat dispersion, include lampshade, LED light source assembly and power drives assembly, the inner chamber of described lampshade is provided with dividing plate, described dividing plate is divided into power source cavity and light-source chamber two parts by the inner chamber of lampshade, described power drives assembly, LED light source assembly respectively correspondence is arranged in power source cavity and light-source chamber, on dividing plate, be provided with wire through-hole, described power drives assembly passes wire through-hole by wire and is electrically connected to LED light source assembly, the peripheral annular of described lampshade is fixedly installed several radiating fins, the lower end of described radiating fin between two forms air vent, described air vent is communicated with described light-source chamber, the top of described power drives assembly is provided with lamp holder, lamp holder and lampshade removably connect, on described lamp holder, be provided with louvre, on described dividing plate, be provided with a plurality of connection power source cavities and light-source chamber to opening, described air vent, to being communicated with between opening and louvre, form thermal convection current passage.

Wherein, described LED light source assembly comprises aluminium base, a plurality of LED chip and reflector, the upper surface of aluminium base and dividing plate butt, described a plurality of LED chips are fixedly installed on respectively on aluminium base, described reflector is provided with a plurality of posts that are fixedly connected with, the post place that is fixedly connected with described in aluminium base correspondence is provided with screw through-hole, described in be fixedly connected with post and be threaded with screw through-hole by screw, aluminium base and reflector are combined into one.

Wherein, described to opening comprise a circle to opening and four square to opening, wherein said circle is positioned at the center of dividing plate to opening; Described aluminium base is provided with the circle of described dividing plate opening and the square through hole corresponding to opening.

Wherein, described lampshade below is also provided with lamp cover, and the below of described lamp cover and lampshade removably connects, and the lower end of described reflector is positioned at lamp cover.

Wherein, between described reflector and lampshade, be provided with darkening ring, the upper surface of described darkening ring and dividing plate butt, the prebasal plate butt of its lower surface and reflector.

Wherein, between described lamp cover and prebasal plate, be provided with total reflection lens.

Further, on described lamp cover, be provided with internal thread, the lower end of described radiating fin is provided with the external screw thread with the internal thread adaptation of lamp cover, and described lamp cover is threaded with the lower end of radiating fin.

Wherein, described power drives assembly comprises the driving power being arranged in described power source cavity, is connected with electric pin pin in one end of driving power, and one end of described electric pin pin passes lamp holder.

Wherein, the interior wall circular of described power source cavity is provided with interior radiating fin, and described interior radiating fin and lampshade are one-body molded.

The beneficial effects of the utility model:

On air vent on lampshade of the present utility model, dividing plate, to being communicated with between the louvre on opening and lamp holder, form thermal convection current passage, this has strengthened circulation, the convection current of shot-light inner chamber air, not only be conducive to heat radiation, also be conducive to alleviate the weight of LED shot-light, make the lightweight of LED shot-light, and save material cost; The utility model has been realized the collaborative heat radiation of heat loss through conduction mode and heat loss through convection mode, can make the heat producing in LED chip luminescence process derive rapidly, and Quick diffusing is in air, has extended the service life of shot-light, and improved the luminous efficiency of LED chip particle.

Accompanying drawing explanation

Fig. 1 is a kind of structural representation with the MR16-LED shot-light of high heat dispersion of the present utility model.

Fig. 2 is a kind of STRUCTURE DECOMPOSITION schematic diagram with the MR16-LED shot-light of high heat dispersion of the present utility model.

Fig. 3 is the structural representation of the lampshade in a kind of MR16-LED shot-light with high heat dispersion of the present utility model.

Fig. 4 is the structural representation at another visual angle of the lampshade in a kind of MR16-LED shot-light with high heat dispersion of the present utility model.

Reference numeral in Fig. 1 to Fig. 4 comprises:

1-lampshade, 11-dividing plate 111-circle is to opening

112-square to opening 12-wire through-hole 13-radiating fin

14-air vent 15-interior radiating fin 2-lamp holder

21-louvre, 3-aluminium base, 4-reflector

41-be fixedly connected with post 42-prebasal plate 5-lamp cover

6-driving power 7-electric pin pin, 8-darkening ring.

The specific embodiment

For the ease of those skilled in the art's understanding, below in conjunction with embodiment and accompanying drawing, the utility model is further described, the content that embodiment is mentioned is not to restriction of the present utility model.Referring to Fig. 1 to Fig. 4, below in conjunction with accompanying drawing, the utility model is described in detail, the upper and lower noun of locality that waits of the present utility model all be take Fig. 1 as reference standard.

A kind of MR16-LED shot-light with high heat dispersion provided by the utility model, include lampshade 1, LED light source assembly and power drives assembly, the inner chamber of described lampshade 1 is provided with dividing plate 11, described dividing plate 1 is divided into power source cavity and light-source chamber two parts by the inner chamber of lampshade 1, be positioned at dividing plate 11 above be power source cavity, below it is light-source chamber; Described power drives assembly, LED light source assembly respectively correspondence are arranged in power source cavity and light-source chamber, on dividing plate 11, be provided with wire through-hole 12, described power drives assembly passes wire through-hole 12 by wire and is electrically connected to LED light source assembly, in the present embodiment, driving power 6 passes wire through-hole 12 by wire and is electrically connected to the LED chip on aluminium base 3, realizes the supply of power supply.The peripheral annular of described lampshade 1 is fixedly installed several radiating fins 13, the lower end of described radiating fin between two 13 forms air vent 14, described air vent 14 is communicated with described light-source chamber, the top of described power drives assembly is provided with lamp holder 2, lamp holder 2 removably connects with lampshade 1, on described lamp holder 2, be provided with louvre 21, on described dividing plate 11, be provided with a plurality of connection power source cavities and light-source chamber to opening, described air vent 14, to be communicated with forming thermal convection current passage between opening and louvre 21.

As shown in Figure 2, described LED light source assembly comprises aluminium base 3, a plurality of LED chip (not marking in the drawings) and reflector 4, the upper surface of aluminium base 3 and dividing plate 11 butts, described a plurality of LED chips are fixedly installed on respectively on aluminium base 3, described reflector 4 is provided with a plurality of posts 41 that are fixedly connected with, corresponding described post 41 places that are fixedly connected with of aluminium base 3 are provided with screw through-hole, described in be fixedly connected with post 41 and be threaded with screw through-hole by screw, aluminium base 3 and reflector 4 are combined into one.In the present embodiment, described to opening comprise a circle to opening 111 and four square to opening 112, wherein said circle is positioned at dividing plate 11 center to opening 111; Described aluminium base 3 is provided with the circle of described dividing plate 11 opening 111 and the square through hole corresponding to opening 112.

From the above, on air vent 14 on lampshade 1 of the present utility model, dividing plate, the louvre 21 on opening 21, lamp holder 2 and described aluminium base 3 are provided with the circle of described dividing plate 11 opening 111 and square to being communicated with formation thermal convection current passage between through hole corresponding to opening 112, this has strengthened circulation, the convection current of this MR16-LED shot-light inner chamber air, not only be conducive to heat radiation, also be conducive to alleviate the lightweight of MR16-LED shot-light, and save material cost; The utility model has been realized the collaborative heat radiation of heat loss through conduction mode and heat loss through convection mode in addition, can make the heat of the luminous generation of LED chip derive rapidly, and Quick diffusing is in air, can significantly improve the service life of shot-light, and be conducive to improve the luminous efficiency of LED chip particle.

In the present embodiment, described lampshade 1 below is also provided with lamp cover 5, and described lamp cover 5 removably connects with the below of lampshade 1, and the lower end of described reflector 4 is positioned at lamp cover 5.Wherein, between described reflector 4 and lampshade 1, be provided with darkening ring 8, the upper surface of described darkening ring 8 and dividing plate 11 butts, prebasal plate 42 butts of its lower surface and reflector 4, darkening ring 8 can prevent that light air vent 14 from the side from shedding.Further, on described lamp cover 5, be provided with internal thread, the lower end of described radiating fin 13 is provided with the external screw thread with the internal thread adaptation of lamp cover 5, and described lamp cover 5 is threaded with the lower end of radiating fin 13.This make syndeton between lamp cover 5 and lampshade 1 simple, install simple and easy.

Wherein, between described lamp cover 5 and prebasal plate 42, be provided with total reflection lens (not marking in the drawings).Total reflection lens appearance is protruded section by a plurality of circular arc and is formed, and can realize the luminous visual effect the same with traditional M16 Lamp cup.Owing to having added total reflection lens, in the situation that do not change the big or small of former shot-light, the dazzle of shot-light is reduced, and light loss reduce the brightness that has greatly increased this MR16-LED shot-light.

In the present embodiment, described power drives assembly comprises the driving power 6 being arranged in described power source cavity, as shown in Figure 1, in one end of driving power 6, be connected with electric pin pin 7, one end of described electric pin pin 7 passes lamp holder 2, electricity pin pin 7 is for being electrically connected to the input of alternating current input circuit, easy to connect.

In the present embodiment, the interior wall circular of described power source cavity is provided with interior radiating fin 15, and described interior radiating fin 15 is one-body molded with lampshade 1.Power source cavity is a circular cavity as shown in Figure 3, is not affecting under the prerequisite of the installation of power drives assembly and the outward appearance of light fixture, sets up interior radiating fin 15 and can effectively strengthen area of dissipation in circular cavity, accelerates heat radiation and transmits.

Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.

Claims

1. A MR16-LED spotlight with high heat dissipation performance, comprising a lampshade body, an LED light source assembly and a power drive assembly, the inner cavity of the lampshade body is provided with a partition, and the partition divides the inner cavity of the lampshade body Divided into two parts, the power cavity and the light source cavity, the power drive components and the LED light source components are respectively installed in the power cavity and the light source cavity, and the partition plate is provided with a wire through hole, and the power drive component passes through the wire through the wire. The hole is electrically connected to the LED light source assembly, and the outer periphery of the lampshade body is fixedly provided with several cooling fins, and the lower ends of the two cooling fins form ventilation holes, and the ventilation holes communicate with the light source cavity. There is a lamp holder above the power drive assembly, the lamp holder is detachably connected to the lampshade body, the lamp holder is provided with cooling holes, and the separator is provided with a plurality of convective holes connecting the power supply chamber and the light source chamber, The ventilation holes, the convection holes and the heat dissipation holes communicate with each other to form a heat convection channel.

2. A kind of MR16-LED spotlight with high heat dissipation performance according to claim 1, characterized in that: the LED light source assembly includes an aluminum substrate, a plurality of LED chips and a reflective cup, the upper end surface of the aluminum substrate is in contact with the partition board contact, the plurality of LED chips are respectively fixed on the aluminum substrate, the reflector cup is provided with a plurality of fixed connection columns, and the aluminum substrate is provided with screw through holes corresponding to the fixed connection columns. The fixed connecting column is threadedly connected with the screw through hole through a screw.

3. A MR16-LED spotlight with high heat dissipation performance according to claim 2, characterized in that: said convection holes include a circular convection hole and four square convection holes, wherein said The circular convection hole is located at the center of the partition; the aluminum substrate is provided with through holes corresponding to the circular convection hole and the square convection hole of the partition.

4. A MR16-LED spotlight with high heat dissipation performance according to claim 2, characterized in that: a lampshade cover is arranged under the lampshade body, and the lampshade cover is detachably connected with the lower part of the lampshade body, The lower end of the reflector cup is located in the lampshade cover.

5. A MR16-LED spotlight with high heat dissipation performance according to claim 4, characterized in that: a shading ring is arranged between the reflector cup and the lampshade body, and the upper end surface of the shading ring is in contact with the partition plate abutting, and its lower end surface is abutting against the front substrate of the reflective cup.

6. The MR16-LED spotlight with high heat dissipation performance according to claim 5, characterized in that: a total reflection lens is arranged between the lampshade cover and the front substrate.

7. A MR16-LED spotlight with high heat dissipation performance according to claim 4, characterized in that: the lampshade cover is provided with internal threads, and the lower end of the heat dissipation fin is provided with an inner thread of the lampshade cover. The thread is adapted to the external thread, and the lampshade cover is threadedly connected with the lower end of the cooling fin.

8. A MR16-LED spotlight with high heat dissipation performance according to claim 1, characterized in that: the power drive assembly includes a drive power set in the power cavity, and one end of the drive power is connected to An electric pin, one end of the electric pin passes through the lamp holder.

9. A MR16-LED spotlight with high heat dissipation performance according to claim 1, characterized in that: the inner wall of the power cavity is provided with inner cooling fins in a ring, and the inner cooling fins are integrated with the lampshade forming.