CN101865431B

CN101865431B - Lamp with heat insulation function

Info

Publication number: CN101865431B
Application number: CN 200910106674
Authority: CN
Inventors: 周明杰; 欧阳征定
Original assignee: Oceans King Lighting Science and Technology Co Ltd; Shenzhen Oceans King Lighting Engineering Co Ltd
Current assignee: Oceans King Lighting Science and Technology Co Ltd; Shenzhen Oceans King Lighting Engineering Co Ltd
Priority date: 2009-04-16
Filing date: 2009-04-16
Publication date: 2011-12-07
Anticipated expiration: 2029-04-16
Also published as: CN101865431A

Abstract

The invention relates to a lamp with a heat insulation function. The lamp comprises a light bulb (3), a transparency (4) and a heat insulation piece (5). The heat insulation piece (5) is arranged between the head of the light bulb (3) and the transparency (4), and is provided with a parabolic reflective surface which faces towards the light bulb (3); the heat insulation piece (5) is fixed on the transparency (4) through a bracket (6) the bottom of which is provided with an annular ring, a hole corresponding to the annular ring is arranged on the transparency (4); the bracket (6) is fixedly connected with the transparency (4) through a blot penetrating through the annular ring and the hole. Thus, high lights radiating to the center of the transparency (4) is separated and scattered, not only is the temperature at the center of the transparency (4) reduced, but also the lights are more uniform. In addition, the heat insulation piece has simple processing technology, is easy to manufacture and has low cost.

Description

Light fixture with heat insulating function

Technical field

The present invention relates to a kind of lighting, more particularly, relate to a kind of light fixture with heat insulating function.

Background technology

At present, the general direct irradiation of the light that the lamp luminescence body sends is on the Transparent Parts of light fixture, perhaps after converging, the reflector reflection is radiated at the center of Transparent Parts, for the higher light fixture of luminous intensity, its Transparent Parts thermal radiation amount is bigger, the easy Yin Gaowen of the Transparent Parts of plastic cement material causes distortion or damages, and influences illumination effect.

Usually, at the heat insulation and heat control technical elements that the light fixture inner chamber is carried out, adopt glass plate or metallic insulation sheet to carry out heat insulation or heat insulation scheme, to reduce the temperature of lamp interior and Transparent Parts.Yet, there is following defective in the such scheme: the more crisp and Heavy Weight of the material of glass plate own, still have many emittance to be delivered on the Transparent Parts, cause cooling-down effect not obvious.If it is heat insulation to adopt heat shield to carry out, then can there be heat insulation complex circuit and bulky problem, it is heat insulation particularly to require to paste shell for cambered shell, and its difficulty is very big.

Summary of the invention

The technical problem to be solved in the present invention is, at the above-mentioned deficiency of prior art, provides a kind of light fixture with heat insulating function, and its not only can lower the temperature temperature at Transparent Parts center makes light more even, and can not increase more weight.

For solving the problems of the technologies described above, the light fixture with heat insulating function of the present invention comprises bulb and Transparent Parts, and also comprises the thermal insulation barriers that is arranged between described bulb head and the described Transparent Parts.

As the preferred technical solution of the present invention, described thermal insulation barriers has reflective surface, and this reflective surface is just towards described bulb.

As the preferred technical solution of the present invention, described thermal insulation barriers is fixed on the described Transparent Parts by support.

As the preferred technical solution of the present invention, light fixture also comprises the reflector with reflective surface, and bulb is positioned at reflector, and Transparent Parts is arranged on the openend of reflector.

As the preferred technical solution of the present invention, the reflective surface of thermal insulation barriers and the inwall reflective surface of reflector are set, after making that the optically focused at directive Transparent Parts center is scattered on the inwall reflective surface of described reflector by the reflective surface of described thermal insulation barriers, be reflected again to described Transparent Parts, project from Transparent Parts at last.

As the preferred technical solution of the present invention, the bottom of this support has annular ring, and described Transparent Parts is provided with the hole corresponding with this annular ring; Described support is fixedlyed connected with described Transparent Parts by the bolt that passes annular ring and hole.

As the preferred technical solution of the present invention, described thermal insulation barriers is made of aluminum.

As the preferred technical solution of the present invention, described support is evenly arranged, and quantity is no less than two.

As the preferred technical solution of the present invention, described Transparent Parts has the rib of anti-dazzle, and the light beam that is incident upon Transparent Parts (4) is scattered by this rib.

As the preferred technical solution of the present invention, the reflective surface of thermal insulation barriers covers in described support, or the lower end of this reflective surface is extended with the upper end that crimping encases described support.。

Implement the light fixture with heat insulating function of the present invention, has following beneficial effect: owing to be provided with thermal insulation barriers, after being scattered to reflector inwall reflective surface earlier, the optically focused at Transparent Parts center reflexed to Transparent Parts so originally shine again, rather than concentrate on the Transparent Parts center, thereby avoided the Transparent Parts central temperature too high, the Transparent Parts Yin Gaowen that prevents plastic cement material causes damage, has improved the life-span of Transparent Parts.In addition, thermal insulation barriers is converted into floodlight with optically focused, and need not extra devices such as reflective mirror, by thermal insulation barriers optically focused is converted into the light that floodlight has effectively utilized the light source center part, with its even dispersion, has improved the light fixture light efficiency.Moreover thermal insulation barriers is an aluminium sheet machine-shaping part, so very light.

Description of drawings

The present invention will be described below in conjunction with accompanying drawing and non-restrictive example, in the accompanying drawing:

Fig. 1 is the structural representation with light fixture of heat insulating function;

Fig. 2 is the half section schematic diagram of thermal insulation barriers;

Fig. 3 is the schematic perspective view of thermal insulation barriers.

Each label implication is among the figure: 1 electric box; 2 reflectors; 3 bulbs; 4 Transparent Parts; 5 thermal insulation barriers; 6 supports.

The specific embodiment

As shown in Figure 1, the electric box 1 that the light fixture with heat insulating function as the preferred embodiments of the present invention includes the lamp socket (not shown), link to each other with lamp socket, be installed in the bulb 3 on the lamp socket, bulb 3 is positioned at reflector 2, and the Transparent Parts 4 that is fixed on reflector 2 openends, described light fixture also comprises the thermal insulation barriers 5 that is located between bulb 3 heads and the Transparent Parts 4.Usually also be provided with the current treatment device that contains ballast, electric capacity, trigger etc. in the electric box 1.Reflector 2 and Transparent Parts 4 have constituted the lampshade assembly.In the present embodiment, the bottom of reflector 2 is connected with electric box 1 by hinge, and certainly, reflector 2 also can be connected on electric box 1 or the lamp socket by any other suitable manner.

Thermal insulation barriers 5 has the reflective surface of paraboloidal, and this reflective surface is towards bulb 3.This thermal insulation barriers 5 also can be back taper, and its reflective surface was for being similar to the conical surface.In addition, preferably, in vertical direction, the central lines of the center line of thermal insulation barriers 5 and bulb 3, Transparent Parts 4, and the reflective surface of thermal insulation barriers 5 size is suitable with bulb 3 head size.Has the reflector 2 of the light fixture of heat insulating function for this, wall has reflective surface within it, thereby make the reflective surface of optically focused by described thermal insulation barriers 5 at directive Transparent Parts 4 centers scatter on the inwall reflective surface of reflector 2, and the light that scatters to the inwall reflective surface of reflector 2 reflexes on the Transparent Parts 4 once more, thereby the light that makes irradiation come out evenly disperses.Like this, thermal insulation barriers has cut off the high light of bulb 3 direct projections to Transparent Parts 4 centres, and light scattering reflexed to Transparent Parts 4 to reflector 2 inwalls, reduced the temperature at Transparent Parts 4 centers, also made air and the air on the top, lamp chamber that forms by electric box 1, reflector 2 and Transparent Parts 4 between thermal insulation barriers 5 and the Transparent Parts 4 form the convection current of part simultaneously.Because the central temperature of Transparent Parts 4 reduces,, helped improving the life-span of Transparent Parts 4 so avoided the Transparent Parts 4 of plastic cement material to be burnt or be out of shape.In addition, Transparent Parts 4 is provided with the rib of anti-dazzle, and the light that reflects from the inwall reflective surface of reflector 2 can remedy the light that is cut off by thermal insulation barriers 5 after the scattering of the rib of Transparent Parts 4, thereby can not influence the light efficiency of the center of Transparent Parts 4, not that is to say to produce blackening.Thermal insulation barriers 5 has not only improved the influence of the optically focused of light source to Transparent Parts 4 central temperatures own, but also optically focused is converted into floodlight, makes luminous intensity distribution more reasonable, and light efficiency is more even, and need not extra devices such as reflective mirror optically focused is converted into floodlight.

Shown in Fig. 2,3, thermal insulation barriers 5 is paraboloidal and the top, center that is fixed on described Transparent Parts 4 by symmetrically arranged two pairs of supports 6.The lower end of thermal insulation barriers 5 reflective surfaces has the crimping of the upper end that encases support 6, and the bottom of support 6 has annular ring, and Transparent Parts 4 is provided with the hole corresponding with this annular ring, and support 6 is fixedlyed connected with Transparent Parts 4 by the bolt that passes annular ring and hole.Need to prove, thermal insulation barriers 5 also can be one-body molded with support 6, that is to say, thermal insulation barriers 5 can itself have and is used for the part that is connected with Transparent Parts 4, as an example, the top of thermal insulation barriers 5 is divided into hemispherical roof shape, and the bottom is divided into the column part that has a plurality of holes that is connected with Transparent Parts 4.In the present embodiment, two pairs of supports 6 are symmetrical arranged, but its quantity, material, arrangement are unrestricted, as long as can support and fixing thermal insulation barriers 5.In addition, preferably, thermal insulation barriers 5 is a paraboloidal and made of aluminum, and or rather, thermal insulation barriers 5 is by aluminium sheet drawing and forming or rotary press modelling.Its processing technology is simple, and manufacturing and cost are low easily.Thermal insulation barriers 5 can also adopt other material and moulding process, and the present invention does not have concrete restriction to this.In addition, thermal insulation barriers 5 also can be other suitable curve form.Support 6 is circumferentially evenly arranged along thermal insulation barriers 5.In addition, the quantity of support 6 also can be greater than 2, and like this, thermal insulation barriers 5 will be fixed on the Transparent Parts 4 more reliably.What can implement in addition is, described support 6 and bottom foot thereof can all be arranged at thermal insulation barriers 5 reflective surfaces under within avoiding influencing light efficiency, i.e. the irradiation that can not obstruct the light and cause the generation of little shade.Support 6 by but be not limited to steel wire and make.

Require emphasis, the term that uses in this specification " comprises/contain ", is used for showing the existence of the parts of being declared, does not exist or increases one or more other parts but do not get rid of.Though with reference to accompanying drawing the present invention has been done detailed description by way of example, the present invention also allows various modifications and replacement form.Therefore, claims are intended to comprise all these possible modifications and replacement form.As long as thermal insulation barriers is set to reduce the temperature at Transparent Parts center between light source and Transparent Parts, all is considered to fall within the scope of protection of the present invention.

Claims

1. the light fixture with heat insulating function comprises bulb (3) and Transparent Parts (4), it is characterized in that also comprising the thermal insulation barriers (5) that is arranged between described bulb (3) head and the described Transparent Parts (4);

Described thermal insulation barriers (5) is made of aluminum;

Described thermal insulation barriers (5) has reflective surface, and this reflective surface is just towards described bulb (3);

Described light fixture also comprises the reflector (2) with reflective surface, and described bulb (3) is positioned at reflector (2), and described Transparent Parts (4) is arranged on the openend of described reflector (2);

Air between described thermal insulation barriers (5) and the described Transparent Parts (4) forms local convection current with the air on the top, lamp chamber that is formed by electric box (1), reflector (2) and Transparent Parts (4).

2. the light fixture with heat insulating function according to claim 1 is characterized in that, described thermal insulation barriers (5) is fixed on the Transparent Parts (4) by support (6).

3. the light fixture with heat insulating function according to claim 1, it is characterized in that, the optically focused at directive Transparent Parts (4) center is scattered on the inwall reflective surface of described reflector (2) by the reflective surface of described thermal insulation barriers (5) after, be reflected again to described Transparent Parts (4), project from Transparent Parts (4) at last.

4. the light fixture with heat insulating function according to claim 2 is characterized in that, the bottom of this support (6) has annular ring, and described Transparent Parts (4) is provided with the hole corresponding with this annular ring; Described support (6) is fixedlyed connected with described Transparent Parts (4) by the bolt that passes annular ring and hole.

5. according to the described light fixture of claim 2, it is characterized in that described support (6) is evenly arranged, and quantity is no less than two with heat insulating function.

6. according to the described light fixture with heat insulating function of claim 3, it is characterized in that described Transparent Parts (4) has the rib of anti-dazzle, the light beam that is incident upon Transparent Parts (4) is scattered by this rib.

7. according to the described light fixture of claim 2, it is characterized in that the reflective surface of described thermal insulation barriers (5) covers in described support (6), or the lower end of this reflective surface is extended with the upper end that crimping encases described support (6) with heat insulating function.