CN202012758U

CN202012758U - LED lamp tube with large light distribution area

Info

Publication number: CN202012758U
Application number: CN2010206729614U
Authority: CN
Inventors: 李宗民
Original assignee: MONISUN INTERNATIONAL CO Ltd
Current assignee: MONISUN INTERNATIONAL CO Ltd
Priority date: 2010-12-22
Filing date: 2010-12-22
Publication date: 2011-10-19
Anticipated expiration: 2020-12-22

Abstract

The utility model discloses an LED (Light Emitting Diode) lamp tube with large light distribution area, comprising a radiating base and a circular arc-shaped tube lamp cover, wherein the radiating base is a long strip unit; a plurality of radiating sheets are upwards formed on the top of the radiating base; the circular arc-shaped tube lamp cover includes a light-transmittable circular arc-shaped tube part and a combination part; the combination part is formed on two free sides of the light-transmittable circular arc-shaped tube part, and upwards fixed to two opposite sides of the radiating base; circular arc radian of the section of the light-transmittable circular arc-shaped tube part is greater than 180 DEG and less than 240 DEG. In this way, when the LED lamp plate is arranged on the bottom surface of the radiating base to form an LED lamp tube illumination device, the LED lamp tube illumination device can provide a light distribution angle which is greater than 180 DEG and provide larger light distribution area; besides, the radiating base is formed with the plurality of radiating sheets, so that larger radiating area is provided and excellent radiating effect is realized.

Description

The LED fluorescent tube of big cloth light area

Technical field

The utility model is about a kind of LED fluorescent tube, and especially in regard to a kind of LED fluorescent tube of big cloth light area, it has a cloth optic angle also has large tracts of land to contact with air greater than 180 ° lampshade and radiating seat.

Background technology

Because the power saving of LED lamp and the characteristic of high illuminance, so be subjected to more and more pursuing the favor of the illuminating equipment industry of energy saving, therefore lighting apparatus now is many based on the LED lamp, existing a kind of LED fluorescent tube lighting device, be used for throwing light at home, see also Fig. 5 and Fig. 6, this LED fluorescent tube lighting device comprises:

One radiating seat 80, semi-cylindrical body for the hollow perforation, comprise a planar substrates 81 and half pipe wall 82, wherein planar substrates 81 forms a plurality of fixing holes 811, and long limit, its both sides inwardly forms a lateral hook sheet 812 respectively downwards, semicircle tube wall 82 forms a plurality of convex ribs 821 at outer surface, and forms a lampshade groove 822 respectively in the junction with planar substrates 81;

One LED lamp plate 90, two lateral hook sheets 812 from a side alignment surface substrate 81 belows of radiating seat 80, be slidedly arranged between the two lateral hook sheets 812, and be positioned at the below of planar substrates 81, and form a screw 91 respectively at corresponding fixing hole 811 places, and pass corresponding screw 91 and fixing hole 811 with a plurality of screws 92, and being locked in planar substrates 81, LED lamp plate 90 is provided with a plurality of LED lamps 93;

Half pipe lampshade 100 is half tubular arc plate, and its cross section is a semi arch, and the two ends of this semi arch are aimed at and slipped in the corresponding lampshade groove 822 of radiating seat 80, and constitutes a complete tube-like tube with radiating seat 80.

Adopt the radiating seat 80 of semi-cylindrical body because of this LED fluorescent tube lighting device, make the light-permeable zone of cross section arc sections of semicircle spot cover 100 only account for half of the full rounded portions in whole LED fluorescent tube lighting device cross section, or even less than half, allow integral LED fluorescent tube lighting device that cloth light area less than 180 ° is provided, therefore can't obtain big illumination zone; Below enumerate an example, if making the cross section diameter of a circle r1 of semicircle spot cover 100 is 31mm, then its lighting angle θ 1 (it is defined as the radian in semicircle spot cover 100 light-permeable districts) is 165 °; And the heat radiation girth of radiating seat 80

Figure 737371DEST_PATH_GSB00000527606800011

(it is defined as the section girth of the outer surface that radiating seat 80 contacts with air) is 59.08mm; The cross-sectional area Φ of radiating seat 80 ₁Be 87.68mm ²LED lamp plate 90 is to the ultimate range L of semicircle spot cover 100 ₁Be 14.7mm; LED lamp plate 90 wide d ₂Be 26mm, can find out that so its lighting angle only is restricted to 165 °; Because of the poly-optical activity of LED lamp, the illumination under the LED lamp is the strongest again, and the illumination of both sides is faint, and uniform source of light can't be provided; In addition, again because when device, the fixing hole 811 of radiating seat must mate contraposition with the screwhole position of LED lamp plate 90, cause easily because of contraposition and precisely can't not install, so this kind LED fluorescent tube lighting device is also undesirable, requires further improvement.

The utility model content

Because the technological deficiency of above-mentioned existing LED fluorescent tube lighting device, main purpose of the present utility model is the LED fluorescent tube that proposes a kind of big cloth light area.

For reaching the employed major technique means of above-mentioned purpose is that the LED fluorescent tube of this big cloth light area is comprised:

One radiating seat is the lengthy motion picture body, and its top has extended upward a plurality of fin;

One arc tube lampshade, be the circular arc tubulose, and comprise a printing opacity arc tube portion and a joint portion, the radian of the cross section circular arc of described printing opacity arc tube portion is no more than 240 ° greater than 180 °, described joint portion is formed at two free sides of described printing opacity arc tube portion, and described radiating seat bottom upwards is fixed in described joint portion.

Because of the radian of the cross section circular arc of described arc tube lampshade printing opacity arc tube portion greater than 180 °, so can have lighting angle and cloth light area greater than 180 °.

Preferably, described printing opacity arc tube portion internal face forms a plurality of thin raised lines.

Preferably, two long limits of described radiating seat form a clamping convex strip respectively, and described two clamping convex strips are in the face of described LED lamp plate fixedly cave inward and forms a LED lamp plate groove in the side of ditch, in addition the two-phase dorsal surface formation one lampshade groove that caves inward; Reaching described joint portion is two drawing pieces, extend to form in two free side direction of described circular arc respectively, and each drawing piece folder is established in the corresponding lampshade groove that is fixed in described radiating seat bottom; Described joint portion also can be formed by two free side direction indents foldings of described printing opacity arc tube portion, and folder is established in the lampshade groove that is fixed in bottom the described radiating seat.

The utility model proposes another purpose again, is to make the cloth light effect more even and soft, further forms the thin raised line that a plurality of mutual flat shapes are arranged at described printing opacity arc tube portion internal face; Therefore, when LED lamp bar light shone thin raised line downwards, light can reflect and scattering, and makes the evenly bright dipping of described printing opacity arc tube portion, and makes lighting softer, and big cloth light area is provided.

The utility model proposes a purpose more again, be to make the centre of described radiating seat be recessed to form fixedly ditch of a LED lamp plate in the bottom surface, described LED lamp plate fixedly ditch is two long limits of a long straight line and parallel described radiating seat, therefore must contraposition boring on described heat sink in addition when further installing LED lamp plate, both saved cost, and also avoided precisely not causing the situation that to install because of contraposition.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present utility model.

Fig. 2 is a profile view of the present utility model.

Fig. 3 is of the present utility model three-dimensional in conjunction with figure.

Fig. 4 is the light path schematic diagram of Fig. 2.

Fig. 5 is existing LED fluorescent tube three-dimensional exploded view.

Fig. 6 is existing LED fluorescent tube profile view.

The specific embodiment

See also Fig. 1 to Fig. 3, the LED fluorescent tube of big cloth light area of the present utility model comprises:

One radiating seat 10, be the lengthy motion picture body, its top has extended upward a plurality of fin 11, form a clamping convex strip 12 and bottom center place again on two long limits of radiating seat 10 respectively and be recessed to form fixedly ditch 13 of a LED lamp plate that is parallel to two long limits, LED lamp plate fixedly ditch 13 is a straight-line groove, two clamping convex strips 12 are in the face of the LED lamp plate fixedly cave inward and forms a LED lamp plate groove 122 in the side of ditch 13, and other the two-phase dorsal surface formation one lampshade groove 121 that caves inward;

One arc tube lampshade 20, be the circular arc tubulose, and comprise a printing opacity arc tube portion 22 and a joint portion, the radian of the cross section circular arc of printing opacity arc tube portion 22 is no more than 240 ° greater than 180 °, the joint portion is formed at two free sides of printing opacity arc tube portion 22, and this radiating seat bottom upwards is fixed in the joint portion, at present embodiment, this joint portion is two drawing pieces 21, and in two free side direction of this circular arc, extend to form respectively, each drawing piece 21 folder is established in the corresponding lampshade groove 121 that is fixed in radiating seat 10 bottoms, and the internal face of printing opacity arc tube portion 22 is formed with the thin raised line 221 that a plurality of mutual flat shapes are arranged; This joint portion also can be formed by two free side direction indent foldings of printing opacity arc tube portion 22, and folder is established in the lampshade groove that is fixed in the radiating seat bottom.

The LED fluorescent tube of above-mentioned tool radiating seat, further folder is established a LED lamp plate 40 in the LED of radiating seat 10 lamp plate groove 122, be formed with a plurality of screws 43 on the LED lamp plate 40, and pass a screw 42, screw 42 pierces fixedly ditch 13 and form consolidation and fix of LED lamp plate, a plurality of LED lamps 41 are set on LED lamp plate 40 again, can use as LED fluorescent tube lighting device.

Because of the radian of the cross section circular arc of arc tube lampshade 20 printing opacity arc tube portions 22 greater than 180 °, so, provide lighting angle and cloth light area greater than 180 °; And radiating seat 10 has a plurality of fin 11, and it can increase the area that contacts with air, and has better heat radiating effect, below enumerates an example, in this example, and the cross section diameter of a circle r of arc tube lampshade 20 ₂Be 28.6mm; Its lighting angle θ ₂(being the radian of arc tube lampshade 20 printing opacity arc tube portions) is 223 °; And radiating seat 10 is because of being formed with each fin 11, so the heat radiation girth of radiating seat 10

Be 62.02; The cross-sectional area Φ of radiating seat 10 ₂Be 65.41mm ² LED lamp plate 40 is to the ultimate range L of arc tube lampshade 20 ₂Be 21.3mm; The wide d of LED lamp plate 40 ₂Be 18.5mm; By summarizing in the above data, the cross section arc of arc tube lampshade 20 of the present utility model is still less than the cross section circular arc of the semicircle spot cover 100 of existing LED fluorescent tube lighting device, and cloth light area of the present utility model and heat radiation girth are all greater than existing LED fluorescent tube lighting device cloth light area and heat radiation girth, therefore have bigger lighting angle than existing LED fluorescent tube lighting device, and fruit of preferable heat radiation is arranged.

Please further consult Fig. 4 again, be opticpath schematic diagram of the present utility model, because of the internal face of the printing opacity arc tube portion 22 of arc tube lampshade 20 is formed with a plurality of thin raised lines 221 that are arranged in parallel, and then the top that makes each thin raised line 221 forms convex surface, and it forms concave surface near then relative top, place, convex surface has dispersion effect at reflex time, concave surface then has dispersion effect when refraction, therefore when led light source shines, when meeting concave surface, single optically focused light directly is scattered after the refraction, the light of meeting convex surface then is scattered after reflection, so, the effect of scattering has been destroyed the poly-optical activity of LED lamp, and a plurality of convex surfaces and concave surface in arc tube lampshade 20, have been formed because of a plurality of thin raised lines 221 again, make opticpaths in the arc tube lampshade 20 not have single rule and form the effect of diffusion, therefore can allow led light source be dispersed evenly on the arc tube lampshade 20; In addition, because of the above-mentioned characteristic of the utility model tool, so when using as general room lighting and the reflection shield of arranging in pairs or groups, the uniform source of light that can reflect the both sides again improves the light source utilization ratio of both sides.

Again since the LED lamp plate fixedly ditch 13 be a straight-line groove, so screw 43 on must contraposition cooperated with LED lamp plate 40 does not have because of contraposition yet and does not precisely cause and can't install.

In sum, because the architectural feature of this radiating seat and this arc tube lampshade, make this arc tube lampshade have and surpass 180 ° big lighting angle and cloth light area, simultaneously make this radiating seat have better heat radiating effect again, cause this arc tube lampshade interior scattering effect and diffuse effect because of these a plurality of thin raised lines again, destroyed the poly-optical activity of LED lamp, can make the light source uniformly dispersing, and make lighting more soft, therefore when using this LED fluorescent tube lighting device to use as throwing light at home, can not feel dazzling because of the poly-optical activity of LED lamp, and the utility model does not have the problem that contraposition precisely can't not be installed when the LED lamp plate further is set, so the utility model can improve the defective of existing LED fluorescent tube lighting device really.

Claims

1. the LED fluorescent tube of a big cloth light area is characterized in that, comprises:

2. the LED fluorescent tube of big cloth light area as claimed in claim 1 is characterized in that: described printing opacity arc tube portion internal face forms a plurality of thin raised lines.

3. the LED fluorescent tube of big cloth light area as claimed in claim 1 or 2 is characterized in that: described radiating seat bottom center is recessed to form fixedly ditch of a LED lamp plate, and described LED lamp plate fixedly ditch is two long limits of long straight line and parallel described radiating seat.

4. the LED fluorescent tube of big cloth light area as claimed in claim 1 or 2, it is characterized in that: two long limits of described radiating seat form a clamping convex strip respectively, and described two clamping convex strips are in the face of described LED lamp plate fixedly cave inward and forms a LED lamp plate groove in the side of ditch, in addition the two-phase dorsal surface formation one lampshade groove that caves inward; And

Described joint portion is two drawing pieces, extend to form in two free side direction of described circular arc respectively, and each drawing piece folder is established in the corresponding lampshade groove that is fixed in described radiating seat bottom.

5. the LED fluorescent tube of big cloth light area as claimed in claim 3, it is characterized in that: two long limits of described radiating seat form a clamping convex strip respectively, and described two clamping convex strips are in the face of described LED lamp plate fixedly cave inward and forms a LED lamp plate groove in the side of ditch, in addition the two-phase dorsal surface formation one lampshade groove that caves inward; And

Described joint portion is formed by two free side direction indents foldings of described printing opacity arc tube portion, and folder is established in the lampshade groove that is fixed in bottom the described radiating seat.

6. the LED fluorescent tube of big cloth light area as claimed in claim 3 is characterized in that: described each thin raised line is arranged parallel to each other.