CN103807616A

CN103807616A - Lamp

Info

Publication number: CN103807616A
Application number: CN201210440312.5A
Authority: CN
Inventors: 周明杰; 刘永亮
Original assignee: Oceans King Lighting Science and Technology Co Ltd; Oceans King Dongguan Lighting Technology Co Ltd; Shenzhen Oceans King Lighting Engineering Co Ltd
Current assignee: Oceans King Lighting Science and Technology Co Ltd; Shenzhen Oceans King Lighting Science and Technology Co Ltd; Oceans King Dongguan Lighting Technology Co Ltd; Shenzhen Oceans King Lighting Engineering Co Ltd
Priority date: 2012-11-07
Filing date: 2012-11-07
Publication date: 2014-05-21

Abstract

The invention discloses a lamp which comprises a shell and a light source. The light source is contained inside the shell. The lamp further comprises a radiator, a heat pipe and a heat conducting piece. The shell comprises a first containing cavity and a second containing cavity, wherein the first containing cavity and the second containing cavity are isolated from each other. A partition plate is arranged between the first containing cavity and the second containing cavity. The radiator, the heat pipe and the heat conducting piece are contained inside the first containing cavity. The heat conducting piece is thermally coupled to the partition plate. The radiator is thermally coupled to the shell. The heat pipe is thermally coupled to the portion between the heat conducting piece and the radiator. The light source is contained inside the second containing cavity and thermally coupled to the partition plate. According to the lamp, a heating device and a radiating device are separated through the first containing cavity and the second containing cavity, and heat conduction is achieved through the heat pipe, so that the radiating speed of the lamp can be increased, the radiating effect of the lamp is improved, and then the service life of the lamp is prolonged.

Description

Light fixture

Technical field

The present invention relates to a kind of lighting device, relate in particular to a kind of light fixture.

Background technology

Existing light fixture is all generally to conduct to dispel the heat by heat.When design, contact the heating position of light fixture by housing, heat is passed.But this conduction pattern, efficiency is low, and speed is slow.Along with the increase of lamp power, this simple heat dissipation design has been not enough to meet the radiating requirements of light fixture, causes heat radiation not in time, finally causes the life-span of light fixture to decline.

Summary of the invention

The object of the present invention is to provide a kind of light fixture of good heat dissipation effect.

In order to solve the problems of the technologies described above, the invention provides a kind of light fixture, it comprises housing and light source, described light source is contained in described housing.Described light fixture also comprises radiator, heat pipe and conducting strip, described housing comprises mutually isolated the first host cavity and the second host cavity, between described the first host cavity and the second host cavity, dividing plate is set, described radiator, heat pipe and conducting strip are contained in described the first host cavity, described conducting strip is thermally coupled in described dividing plate, described radiator heat is coupled in described housing, described heat pipe is thermally coupled between described conducting strip and described radiator, described light source is contained in described the second host cavity, and described light source is thermally coupled on described dividing plate.

Wherein, described heat pipe is U-shaped, and described heat pipe one end is thermally coupled in described conducting strip, and the described heat pipe other end is thermally coupled in described radiator.

Wherein, between described radiator and described housing, heat conductive silica gel is set.

Wherein, described radiator is radiating fin.

Wherein, described radiator adopts aluminum to do.

Wherein, described conducting strip adopts brass to make.

Wherein, described light source comprises circuit board and bulb, and described circuit board is fixed on described dividing plate, and described circuit board is just to described semiconductor chilling plate, and described bulb is installed on described circuit board.

Wherein, described light fixture also comprises reflection shield, and described reflection shield covers on described bulb.

Wherein, described light fixture also comprises sealing ring, and described sealing ring is sealed between described reflection shield and described housing.

Wherein, described light fixture also comprises transparent cover plate and pressure ring, and described pressure ring is fixed on the light-emitting window of described housing, and described pressure ring comprises through hole, and described transparent cover plate is held between the light-emitting window of described housing and the edge of described pressure ring.

Light fixture provided by the invention is separated heater members and radiating element by the first host cavity and the second host cavity, and pass through heat pipe for thermal conductivity, thereby the radiating rate that can accelerate described light fixture, improves the radiating effect of described light fixture, and then has extended the service life of described light fixture.

Accompanying drawing explanation

In order to be illustrated more clearly in technical scheme of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the schematic diagram of the light fixture that provides of embodiment of the present invention;

Fig. 2 is the cutaway view of light fixture shown in Fig. 1 along II-II line;

Fig. 3 is the schematic diagram of the element of lamp interior shown in Fig. 1.

The specific embodiment

Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.

See also Fig. 1 to Fig. 3, a kind of light fixture 100 that embodiment of the present invention provides, it comprises housing 10, light source 20, radiator 30, heat pipe 40, conducting strip 50, reflection shield 60, transparent cover plate 70 and pressure ring 80.

Described housing 10 comprises the first host cavity 11 and second host cavity 12 of connection, between described the first host cavity 11 and the second host cavity 12, dividing plate 13 is set.Described the first host cavity 11 is accommodated described radiator 30, conducting strip 50 and heat pipe 40.Described the second host cavity 12 is accommodated described light source 20.

Described conducting strip 50 is thermally coupled in described dividing plate 13.In present embodiment, described conducting strip 50 comprises a card 50a.Described card 50a is posted by described dividing plate 13.Described conducting strip 50 use brass, as material, pass to described heat pipe 40 rapidly for the heat that described light source 20 is sent.

Described heat pipe 40 is thermally coupled between described conducting strip 50 and described radiator 30, and described heat pipe 40 is U-shaped, and described heat pipe 40 one end 41 are thermally coupled in described conducting strip 50, and described heat pipe 40 other ends 42 are thermally coupled in described radiator 30.Described heat pipe 40 is fill with working media and utilize the decalescence of medium and the high efficient heat exchanging element that heat exchange is carried out in heat release in the shell of sealing.The heat that described heat pipe 40 passes over described conducting strip 50 passes to described radiator 30 rapidly.

In present embodiment, described radiator 30 is radiating fin, and described radiator 30 adopts aluminum to do.Described radiator 30 one end 31 are platy structure, and described radiator 30 other ends 32 have multiple fins arrangements to form, and expand area of dissipation.Described radiator 30 fixing described heat pipe 40 other ends 42 in one end 31.Between described radiator 30 other ends 32 and described housing 10, heat conductive silica gel 9 is set.Described heat conductive silica gel 9 couples together radiator 30 and the housing 10 of light fixture 100, light fixture 100 heats are passed to outside light fixture 100, and tool also has cushioning effect.Certainly, in other embodiments, described radiator 30 can be also other heat abstractors such as fan.

Described light source 20 is thermally coupled on described dividing plate 13.In present embodiment, described light source 20 comprises circuit board 21 and bulb 22, and described circuit board 21 is fixed on described dividing plate 13, and described circuit board 21 is just to described conducting strip 50, and described bulb 22 is installed on described circuit board 21.Described circuit board 21 is connected on described dividing plate 13 by screw 8.Certainly, in other embodiments, described circuit board 21 also can be fixed on described dividing plate 13 by modes such as welding, bondings.

Described reflection shield 60 is parabolic shape reflector, and described reflection shield 60 one end cover on described bulb 22.The other end of described reflection shield 60 is fixed on the light-emitting window 12a of described the second host cavity 12.Described sealing ring 7 is sealed between described reflection shield 60 and described housing 10.Described pressure ring 80 comprises through hole 80a, and described transparent cover plate 70 is held between the light-emitting window 12a of described housing 10 and the edge of described pressure ring 80, and described transparent cover plate 70 seals described light-emitting window 12a.Described pressure ring 80 is fastened on described light-emitting window 12a, and described transparent cover plate 70 is pressed in to described light-emitting window 12a.Certainly, in other embodiments, also can omit described pressure ring 80, described transparent cover plate 70 closes described light-emitting window 12a by helicitic texture or rubber seal.

Light fixture 100 provided by the invention is separated heater members and radiating element by the first host cavity 11 and the second host cavity 12, and by heat pipe 40 heat conduction, thereby can accelerate the radiating rate of described light fixture 100, improve the radiating effect of described light fixture 100, and then extended the service life of described light fixture 100.

The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.

Claims

1. a light fixture, it comprises housing and light source, described light source is contained in described housing, it is characterized in that, described light fixture also comprises radiator, heat pipe and conducting strip, described housing comprises mutually isolated the first host cavity and the second host cavity, between described the first host cavity and the second host cavity, dividing plate is set, described radiator, heat pipe and conducting strip are contained in described the first host cavity, described conducting strip is thermally coupled in described dividing plate, described radiator heat is coupled in described housing, described heat pipe is thermally coupled between described conducting strip and described radiator, described light source is contained in described the second host cavity, described light source is thermally coupled on described dividing plate.

2. light fixture according to claim 1, is characterized in that, described heat pipe is U-shaped, and described heat pipe one end is thermally coupled in described conducting strip, and the described heat pipe other end is thermally coupled in described radiator.

3. light fixture according to claim 1, is characterized in that, between described radiator and described housing, heat conductive silica gel is set.

4. light fixture according to claim 1, is characterized in that, described radiator is radiating fin.

5. light fixture according to claim 1, is characterized in that, described radiator adopts aluminum to do.

6. light fixture according to claim 1, is characterized in that, described conducting strip adopts brass to make.

7. light fixture according to claim 1, is characterized in that, described light source comprises circuit board and bulb, and described circuit board is fixed on described dividing plate, and described circuit board is just to described semiconductor chilling plate, and described bulb is installed on described circuit board.

8. light fixture according to claim 6, is characterized in that, described light fixture also comprises reflection shield, and described reflection shield covers on described bulb.

9. light fixture according to claim 1, is characterized in that, described light fixture also comprises sealing ring, and described sealing ring is sealed between described reflection shield and described housing.

10. light fixture according to claim 1, it is characterized in that, described light fixture also comprises transparent cover plate and pressure ring, and described pressure ring is fixed on the light-emitting window of described housing, described pressure ring comprises through hole, and described transparent cover plate is held between the light-emitting window of described housing and the edge of described pressure ring.