CN201462687U

CN201462687U - Grid lamp panel

Info

Publication number: CN201462687U
Application number: CN2009200741272U
Authority: CN
Inventors: 王耀海; 陈晓培
Original assignee: ZHONGSHAN OPPLE LIGHTING CO Ltd; Opple Lighting Co Ltd
Current assignee: Opple Lighting Co Ltd
Priority date: 2009-06-18
Filing date: 2009-06-18
Publication date: 2010-05-12
Anticipated expiration: 2019-06-18

Abstract

The utility model discloses a grid lamp panel, which is used for mounting and matching with a straight fluorescent tube; the grid lamp panel comprises a bottom plate, a reflective cover and a grid sheet, and a back plate or a plurality of back plates, the back plate is arranged between the bottom plate and the fluorescent tube; and the back plate comprises two parabolic cylindrical surfaces which are connected together and are axisymmetric around fluorescent tube, wherein, the straight-line generator is parallel to the axes of the fluorescent tube. The reflective cover comprises two separated cylindrical surfaces which are axisymmetric around fluorescent tube and are located at both sides of the fluorescent tube; the cylindrical surface of the reflective cover is the combination of a parabolic cylindrical surface or a plurality of parabolic cylindrical surfaces, wherein, the straight-line generator is parallel to the axes of the fluorescent tube. The grid sheet comprises two connected axisymmetric parabolic cylindrical surfaces, wherein, the straight-line generator is perpendicular to the axes of the fluorescent tube. The grid lamp panel can effectively reduce the optical path, and can increase the efficiency of lamp, and can realize the energy-saving goal; meanwhile, the glare meets the CIBSE LG3 CATII standards.

Description

Grid lamp disc

Technical field

The utility model relates to a kind of light fixture, particularly relates to a kind of grid lamp disc that cooperates fluorescent tube to use.

Background technology

Fluorescent tube is widely used in all kinds of office spaces owing to have energy-conservation, characteristics of high efficiency.Fluorescent tube is installed in the grid lamp disc usually, is used with grid lamp disc.See also Fig. 1, this is the generalized section that a kind of traditional fluorescent lamp tube and grid lamp disc are used, comprising fluorescent tube 10 and grid lamp disc 20.The optical system of grid lamp disc 20 mainly comprises base plate 21, reflector 22, grid sheet 23 etc.Base plate 21 is generally one flat plate.Each reflector 22 comprises two

parts

22a, 22b, lays respectively at the both sides of a fluorescent tube 10, and two parts 22a, the 22b of each reflector 22 is with 10 one-tenth axial symmetry of this fluorescent tube.The cutting plane of reflector 22 is smooth curve normally, and more typical situation is a circular arc.Grid lamp disc 20 is deployed on the ceiling usually, so base plate 21, reflector 22 and grid sheet 23 generally lay respectively at top, both sides and the below of fluorescent tube 10.

In the grid lamp disc shown in Figure 1, have the space between base plate 21 and the reflector 22, the part light that makes fluorescent tube 10 send enters and causes waste in this space.Because reflector 22 is without special optical design, the light that fluorescent tube 10 sends just can shine working face after more than 22 reflection of reflector, and this has caused light path far away, and the loss of light is big, also can't form uniform irradiation light; Because base plate 21 is planar base surfaces, after reflecting through base plate 21, the light that makes fluorescent tube 10 send comes back to fluorescent tube 10, caused the loss of light.Above-mentioned 3 Luminaire efficiencies that make existing grid lamp disc (illumination that light source is sent is mapped to the ratio of working face) are generally on the low side, usually between 50%～60%.Again because grid sheet 23 does not pass through special optical design, making 90, to spend to the working faces of 270 degree the brightness value of 65 degree cutoff angles higher, surpasses 1500cd usually, and this can make the people produce the sensation of dazzle.

The utility model content

Technical problem to be solved in the utility model provides a kind of grid lamp disc, and it has higher Luminaire efficiency, and solves the phenomenon that dazzle exceeds standard.

For solving the problems of the technologies described above, the utility model grid lamp disc is used for installing and cooperating Radiating fin wind inducing structure, described grid lamp disc comprises base plate, reflector and grid sheet, described grid lamp disc also comprises one or more piece backboard, every backboard is all between base plate and fluorescent tube, every backboard includes with this root fluorescent tube and becomes axisymmetric two parabolic cylinderes that link together, and its straight edge line is parallel with the fluorescent tube axis.

The end of every backboard both sides also comprises the cylinder that is used for this piece backboard is fixed in base plate, and its straight edge line is parallel with the fluorescent tube axis.

Each reflector is the cylinder that becomes axisymmetric two separation with a fluorescent tube, respectively in the both sides of this root fluorescent tube, it is characterized in that each cylinder of described reflector is the combination of a parabolic cylinder or a plurality of parabolic cylinderes, its straight edge line is parallel with the fluorescent tube axis.

Each grid sheet is into axisymmetric two parabolic cylinderes that are connected, its straight edge line and fluorescent tube axis normal.

The utility model grid lamp disc has increased backboard, has improved the shape of reflector and grid sheet, and the common optical system that forms of this three can effectively utilize light, dwindle light path, improve Luminaire efficiency, realize energy conservation object, and make dazzle satisfy the standard of CIBSE LG3 CATII.

Description of drawings

Fig. 1 is the generalized section that existing grid lamp disc and fluorescent tube are used;

Fig. 2 is the schematic appearance that the utility model grid lamp disc and fluorescent tube are used;

Fig. 3 is an A-A face generalized section among Fig. 2;

Fig. 4 is the partial enlarged drawing of C part among Fig. 3;

Fig. 5 is a B-B face generalized section among Fig. 2.

Description of reference numerals among the figure:

10 is fluorescent tube; 20 is grid lamp disc; 21 is base plate; 22 is reflector; 22a, 22b are the part of reflector; 23 is grid sheet; 30 is fluorescent tube; 40 is grid lamp disc; 41 is base plate; 42 is backboard; 42a is the fixed structure of backboard; 43 is reflector; 43a, 43b are the part of reflector; 44 is grid sheet.

The specific embodiment

See also Fig. 2, this is the schematic appearance that the utility model grid lamp disc cooperates fluorescent tube to use together.Because grid lamp disc is deployed on the ceiling usually, so its following side space is usually as working face.

Compare with existing grid lattice dish, the utility model has carried out three innovations.See also Fig. 3 and Fig. 4, Fig. 3 is the generalized section of A-A face among Fig. 2, and Fig. 4 is the partial enlarged drawing of C part among Fig. 3.At first be to have increased one or more backboard 42, its quantity equates with the quantity of fluorescent tube 30.A common grid lamp disc is used to install two or three fluorescent tubes, then needs to be provided with two or three backboards.All between base plate 41 and fluorescent tube 30, every backboard 42 includes with 30 one-tenth axisymmetric two parabolic cylinderes that link together of this root fluorescent tube for every backboard 42, and the straight edge line of described parabolic cylinder is parallel with the fluorescent tube axis.

According to mathematical definition, in three dimensions, a moving straight line is decided the parallel mobile formed curved surface of curve along one and is called cylinder, and this moving straight line is called the straight edge line of cylinder, and this decides the directrix that curve is called cylinder.When the directrix of a cylinder was parabola, this cylinder was called parabolic cylinder.

As shown in Figure 4, the end of every backboard 42 both sides can also comprise the cylindrical structure 42a that is used for this piece backboard is fixed in base plate, but this not necessarily.The straight edge line of cylindrical structure 42a is also parallel with the fluorescent tube axis.The fixed structure 42a of cylindrical shape can adopt screw or riveted and base plate 41 to fix.

The backboard 42 that increases newly has reduced at the light leak of base plate 41 with the gap location of reflector 43, and after the light that the design of the parabolic cylinder of backboard 42 can make fluorescent tube 30 send passes through the reflection of backboard 42, can not reflex to again on the fluorescent tube 30, but shine directly into working face or the secondary reflection by reflector 43 shines on the working face.

Secondly, the utility model has improved the shape of reflector.Each reflector 43 is cylinder 43a, the 43b with 30 one-tenth axisymmetric two separation of a fluorescent tube, in the both sides of this root fluorescent tube 30, each

cylinder

43a, 43b of described reflector is the combination of a parabolic cylinder or a plurality of parabolic cylinderes respectively.The straight edge line of

cylinder

43a, 43b is parallel with the fluorescent tube axis.

In the preferred case, fluorescent tube 30 is placed on the below of focus of the parabolic cylinder at reflector 43 the most close backboards 42 places.

Improved reflector 43 adopts parabolic cylinder or the design of multistage parabolic cylinder, and light path has been shortened in repeatedly reflection that one side is less; Strengthened the gross area of optical system on the other hand, having improved Luminaire efficiency. most of light that fluorescent tube 30 sends only passes through the primary event of reflector 43, just shine on the working face, and be to shine on the nearest working face, reduced light path. when fluorescent tube 30 places the below of focus of parabolic cylinder of reflector the top, can obtain the batswing tab luminous intensity distribution on the working face, more help writing and reading of working environment.

See also Fig. 5, this is the generalized section of B-B face among Fig. 2.Once more, the utility model has improved the shape of grid sheet.Each grid sheet 44 is into axisymmetric two parabolic cylinderes that are connected, the straight edge line of described parabolic cylinder and fluorescent tube axis normal.

The roughly V-shaped section of improved grid sheet 44 by adjusting its A/F, can be controlled grid lamp disc and spend the brightness value of 65 degree cutoff angles to the 270 degree illumination planes in 1000cd, to satisfy the requirement of CIBSE LG3 CATII 90.

The optical system of the utility model grid lamp disc 40 mainly comprises backboard 42, reflector 43, grid sheet 44 etc.Because the innovation of above-mentioned three aspects, the Luminaire efficiency of the utility model grid lamp disc can reach about 75%, and has realized the batswing tab luminous intensity distribution, and the light fixture irradiation evenly helps writing and reading of working environment.Because the raising of Luminaire efficiency has also just realized energy-conservation simultaneously.

Claims

1. grid lamp disc, be used for installing and cooperating Radiating fin wind inducing structure, described grid lamp disc comprises base plate, reflector and grid sheet, it is characterized in that, described grid lamp disc also comprises one or more backboard, all between base plate and fluorescent tube, every backboard includes with this root fluorescent tube and becomes axisymmetric two parabolic cylinderes that link together for every backboard, and its straight edge line is parallel with the fluorescent tube axis.

2. grid lamp disc according to claim 1 is characterized in that, the end of every backboard both sides also comprises the cylinder that is used for this piece backboard is fixed in base plate, and its straight edge line is parallel with the fluorescent tube axis.

3. grid lamp disc according to claim 1, it is characterized in that, each reflector is the cylinder that becomes axisymmetric two separation with a fluorescent tube, respectively in the both sides of this root fluorescent tube, each cylinder of described reflector is the combination of a parabolic cylinder or a plurality of parabolic cylinderes, and its straight edge line is parallel with the fluorescent tube axis.

4. grid lamp disc according to claim 1 is characterized in that, each grid sheet is into axisymmetric two parabolic cylinderes that are connected, its straight edge line and fluorescent tube axis normal.

5. grid lamp disc according to claim 3 is characterized in that, fluorescent tube is placed on the below of focus of the parabolic cylinder at the most close backboard of described reflector place.