CN203560828U - Lamp cover with large light emitting angle - Google Patents
Lamp cover with large light emitting angle Download PDFInfo
- Publication number
- CN203560828U CN203560828U CN201320675944.XU CN201320675944U CN203560828U CN 203560828 U CN203560828 U CN 203560828U CN 201320675944 U CN201320675944 U CN 201320675944U CN 203560828 U CN203560828 U CN 203560828U
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- segmental arc
- lampshade
- wide
- bright dipping
- arc
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Abstract
The utility model discloses a lamp cover with a large light emitting angle. The longitudinal cross section of the lamp cover is an axial symmetric figure taking a straight line L as a symmetric axis and comprises a first arc-shaped section (1) which is arranged at the uppermost end and has a central point on the symmetric axis, and a side surface segment is connected to each of the two ends of the first arc-shaped section (1); each side surface segment comprises at least two smoothly connected arc-shaped sections, the horizontal distance from the side surface segment to the symmetric axis is gradually reduced from the top to the bottom, and the corresponding radiuses of the arc-shaped sections forming the side surface segments are also gradually reduced from the top to the bottom. The lamp cover has the advantages of large fully distributed light emitting angle, good light emitting uniformity and the like.
Description
Technical field
The utility model relates to field of illuminating lamps, relates in particular to a kind of wide-angle bright dipping lampshade.
Background technology
In daily life, work, production, lighting apparatus is one of the most frequently used consumer.Existing lighting reflectivity is low, and the utilization rate to luminous energy and the utilization rate of electric energy are lower.Meanwhile, because existing light fixture light efficiency is low, in the room of certain area, in order to reach desirable illuminating effect, can only increase the quantity of lamp, cause a large amount of energy wastes.In the epoch of advocating energetically energy-saving and emission-reduction, improve illumination efficiency, reduce the wasting of resources, reduce lighting apparatus maintenance cost, become the most urgent task of all trades and professions, the luminous efficiency and the amount of light that therefore how to improve lighting all become the problem that lighting field is paid special attention to.
Existing common LED bulb, be subject to the less impact of the lighting angle of LED light source own, cannot reach larger lighting angle, and existing full light-distribution LED bulb lamp, it adopts globe holder, bulb lamp internal structure complexity, cost is higher, in addition, its rising angle is the highest can only reach monolateral 120 °, 240 ° of entirety.
Utility model content
The technical problems to be solved in the utility model is just: for prior art above shortcomings, the utility model provides a kind of simple in structure, low cost and rising angle to be greater than the wide-angle bright dipping lampshade of the LED lamp rising angle of existing employing globe holder.
For achieving the above object, a kind of wide-angle bright dipping lampshade of the present utility model, its longitudinal section is the zhou duicheng tuxing take straight line L as symmetry axis, and this longitudinal section comprises and being positioned at topmost and first segmental arc of mid point on symmetry axis, and the two ends of the first segmental arc are respectively connected with a side line segment; Side line segment comprises at least two segmental arcs in smoothing junction, and side line segment reduces from top to bottom gradually to the horizontal range of symmetry axis, and radius corresponding to segmental arc that forms side line segment also reduces from top to bottom successively.In this programme, lampshade adopts non-spherical shape, and adopt, multiple arc shells are in smoothing junction to be formed, its cross section (installing mechanism of lampshade under, when place at upper forward on top, the cross section of vertical direction) side line segment comprise at least two segmental arcs, form these segmental arc smooth connections of side line segment, its corresponding arc shell is also in smoothing junction, increased and uniformity of light, and the radius that these segmental arcs are corresponding and all reduce gradually from top to bottom to make whole lampshade be from top to bottom the trend that radius reduces gradually to the horizontal range of symmetry axis, above-mentioned arc shell is tightened up from top to bottom, and the trend of tightening up is obvious gradually, in the lower end of lampshade, draw at most, and globular bulb lampshade of the prior art from top to bottom, its radius can not diminish gradually, and it also can not draw in lower end, therefore its rising angle is limited, the said structure of the lampshade in this programme has increased the full luminous intensity distribution rising angle of lampshade, also guaranteed light-emitting uniformity.
As further improvement of the utility model, above-mentioned side line segment comprises the second segmental arc, the 3rd segmental arc, the 4th segmental arc, wherein: the second segmental arc is connected with the first segmental arc, the 3rd segmental arc is connected with the second segmental arc, the 4th segmental arc is connected with the 3rd segmental arc; The center of circle of the second segmental arc and the 3rd segmental arc is in lampshade inner side, and the center of circle of the 4th segmental arc is in lampshade outside.The longitudinal section of the lampshade in this programme comprises at least 7 segmental arcs: 1 the first segmental arc, article 2, the second segmental arc, article 2, the 3rd segmental arc, article 2, the 4th segmental arc, wherein: the upper end of 2 the second segmental arcs is connected to the first segmental arc two ends, article 2, the 3rd segmental arc upper end is connected with 2 article of second segmental arc lower end respectively, article 2, the 4th segmental arc upper end is connected with 2 article of the 3rd segmental arc lower end respectively, the first segmental arc two ends connect the second segmental arc successively, the 3rd segmental arc, the 4th segmental arc, these segmental arc smooth connections, its corresponding arc shell is also in smoothing junction, increased and uniformity of light, and the second segmental arc, the 3rd segmental arc and the 4th segmental arc reduce to make whole lampshade to be from top to bottom the trend that radius reduces gradually to the horizontal range of symmetry axis from top to bottom gradually, the second segmental arc, the 3rd segmental arc and radius corresponding to the 4th segmental arc reduce successively, the center of circle of the second segmental arc and the 3rd segmental arc is in lampshade inner side, the trend that the center of circle of the 4th segmental arc tightens up above-mentioned arc shell in lampshade outside is from top to bottom obvious gradually, in the lower end of lampshade, draw at most, in this programme, lampshade is so arranged and reliable rising angle is provided (maximum can reach monolateral 161 ° realizing full luminous intensity distribution, 322 ° of global accessiblities), also guaranteed uniformity of light, especially guaranteed the light-emitting uniformity of 100 °-135 ° of full luminous intensity distributions simultaneously.
Further, lampshade lower end is also provided with installing mechanism cylindraceous, and the longitudinal section of this installing mechanism comprises two vertical flat segments, and flat segments upper end is connected with the 4th segmental arc lower end, installing mechanism cylindraceous is set in this programme, and this lampshade is installed and fixed to flat segments easy to use easily.
Further, outside, above-mentioned installing mechanism lower end is also provided with the snap fit of fastening lampshades, for coordinating with the draw-in groove of radiator, lampshade is fixed on radiator.
Further, above-mentioned snap fit consists of projection and groove: projection is fixed on outside, installing mechanism lower end and give prominence to outside (lampshade outside); Groove is positioned at the top of projection, and inwardly (lampshade inside) depression, and the lower end of groove and the upper end of projection are positioned at same level height.Projection and groove can utilize the strain of plastic cement to snap in the draw-in groove of radiator, and snap fit and draw-in groove are permanent connection,, after both assemblings, can not dismantle, and structural safety is reliable.Projection and flat segments are preferably an integrated entirety, also can adopt two independently individualities, are fixed together.
Further, the vertical height of above-mentioned projection and groove is 1mm, and the outwardly 0.54mm of projection, the groove 0.4mm that caves inward.
Further, above-mentioned snap fit quantity is 4, is evenly arranged on the week of installing mechanism upwards, that is, the downside outer end of cylindrical shape installing mechanism is uniformly distributed 4 snap fits, from four direction, lampshade is fixed on radiator like this, fixes more firmly and firm.
Further, the internal diameter of above-mentioned installing mechanism is 38mm ~ 39mm, and external diameter is 40mm ~ 41mm.
Further, the height of lampshade (including installing mechanism) is 38mm ~ 40mm, and wherein the height of installing mechanism is 2mm ~ 3mm, and can guarantee, by stable lampshade being fixed on radiator, increases again cost with exceeding.
Further, radius corresponding to above-mentioned the 3rd segmental arc is 4mm, radius corresponding to above-mentioned the 4th segmental arc is 1mm, the rising angle of common bulb lamp is generally monolateral is less than 120 °, therefore, cannot bright dipping in horizontal level corresponding to the 3rd segmental arc and following position, and the setting of employing this programme, the 3rd segmental arc is sharply drawn in lampshade lower end, by reflection or the refraction of LED lamp, the 3rd segmental arc also has the part position can bright dipping, increases rising angle, the 4th segmental arc further draw in and with flat segments smooth connection.
With respect to prior art, the utlity model has following advantage and beneficial effect:
1, the utility model can adopt non-spherical shape by lampshade, adopts the smooth connection of multistage arc shell, has increased and uniformity of light; Lampshade from top to bottom radius reduces gradually, and in the lower limb part of lampshade, arc shell slowly tightens up, and to realizing full luminous intensity distribution, provides reliable rising angle and uniformity, has especially guaranteed the outgoing light homogeneity of 100 °-135 ° of full luminous intensity distributions.
2, lampshade of the present utility model adopts snap fit to coordinate with the draw-in groove of radiator, utilizes the strain of plastic cement forever to connect, and structural safety is reliable.
3, simple compact, easy to use, the each part dimension of this utility structure is reasonable, when meeting manufacture requirement, can effectively save cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of embodiment 3;
Fig. 3 is the structural representation of snap fit;
Fig. 4 is the upward view of lampshade in embodiment 3 and embodiment 4;
Fig. 5 is the size schematic diagram of each structure of lampshade.
Marginal data: 1, the first segmental arc; 2, the second segmental arc; 3, the 3rd segmental arc; 4, the 4th segmental arc; 5, flat segments; 6, projection; 7, groove.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
[embodiment 1]
As shown in Figure 1, a kind of wide-angle bright dipping lampshade of the present embodiment, its longitudinal section is the zhou duicheng tuxing take straight line L as symmetry axis, and this longitudinal section comprises that the two ends that are positioned at the top and first segmental arc 1, the first segmental arc 1 of mid point on symmetry axis are respectively connected with a side line segment; This side line segment comprises at least two segmental arcs in smoothing junction, and side line segment reduces from top to bottom gradually to the horizontal range of symmetry axis, and radius corresponding to segmental arc that forms side line segment also reduces from top to bottom successively.In this programme, lampshade adopts non-spherical shape, and adopt, multiple arc shells are in smoothing junction to be formed, its cross section (installing mechanism of lampshade under, when place at upper forward on top, the cross section of vertical direction) side line segment comprise at least two segmental arcs, form these segmental arc smooth connections of side line segment, its corresponding arc shell is also in smoothing junction, increased and uniformity of light, and the radius that these segmental arcs are corresponding and reduce gradually from top to bottom to make whole lampshade be from top to bottom the trend that radius reduces gradually to the horizontal range of symmetry axis, above-mentioned arc shell is tightened up from top to bottom, and the trend of tightening up is obvious gradually, in the lower end of lampshade, draw at most, increased the full luminous intensity distribution rising angle of lampshade, also guaranteed light-emitting uniformity.
[embodiment 2]
As shown in Figure 1, a kind of wide-angle bright dipping lampshade of the present embodiment, by multiple arc shell smooth connections, formed, its longitudinal section axial symmetry, this longitudinal section comprises the segmental arc of multiple smooth connections, these level and smooth segmental arcs comprise: mid point is positioned at the first segmental arc 1 on the symmetry axis of longitudinal section, article two, the second segmental arc 2, article two, the 3rd segmental arc 3, article two, the 4th segmental arc 4, wherein: the upper end of two the second segmental arcs 2 is connected to the first segmental arc 1 two ends, article two, the 3rd segmental arc 3 upper ends are connected with two article of second segmental arc 2 lower end respectively, article two, the 4th segmental arc 4 upper ends are connected with two article of the 3rd segmental arc 3 lower end respectively, the first segmental arc 1 both sides all connect the second segmental arc 2 successively, the 3rd segmental arc 3, the 4th segmental arc 4, and the second segmental arc 2, the 3rd segmental arc 3 and the 4th segmental arc 4 reduce gradually to the horizontal range of symmetry axis from top to bottom, make whole lampshade from top to bottom radius reduce gradually, these segmental arc smooth connections, its corresponding arc shell is also in smoothing junction, has increased and uniformity of light.
In addition, the radius of the second segmental arc 2, the 3rd segmental arc 3 and the 4th segmental arc 4 correspondences reduces successively, the center of circle of the second segmental arc 2 and the 3rd segmental arc 3 is in lampshade inner side, the center of circle of the 4th segmental arc 4 is in lampshade outside, the trend that arc shell tightens up is from top to bottom obvious gradually, in the lower end of lampshade, draw at most, the rising angle maximum of its full luminous intensity distribution can reach monolateral 161 °, 322 ° of global accessiblities, also guaranteed uniformity of light, especially guaranteed the light-emitting uniformity of 100 °-135 ° of full luminous intensity distributions simultaneously.
[embodiment 3]
As shown in Figure 2, on the basis of embodiment 2, in the present embodiment, lampshade lower end is also provided with installing mechanism cylindraceous, the longitudinal section of this installing mechanism comprises two vertical flat segments 5, article two, flat segments 5 upper ends are all respectively connected with the lower end of one article of the 4th segmental arc 4, and this outside, installing mechanism lower end is also provided with the snap fit of fastening lampshades, for lampshade being fixed on to the devices such as radiator, mounting seat.
[embodiment 4]
Fig. 3 is the structural representation of snap fit, and on the basis of embodiment 3, the snap fit in the present embodiment consists of projection 6 and groove 7: projection 6 is fixed on outside, installing mechanism lower end and outwards outstanding; Groove 7 is positioned at the top of projection 6, cave inward, and the upper end of the lower end of groove 7 and projection 6 is positioned at same level height, and the lower end of groove 7 is concordant with the upper end of projection 6.Wherein, projection 6 and flat segments 5 can be two independent individualities, and projection 6 is fixed in flat segments 5; The entirety that projection 6 and flat segments 5 also can be formed in one.In the present embodiment, projection 6 and groove 7 can utilize the strain of plastic cement to snap in the draw-in groove of radiator, and snap fit and draw-in groove are permanent connection,, after both assemblings, can not dismantle, and structural safety is reliable.
Fig. 4 is the upward view of lampshade, and in the present embodiment, snap fit quantity is 4, is evenly arranged on the week of installing mechanism upwards, and lampshade is fixed in 4 directions, and fixing is more solid and reliable.
[embodiment 5]
On the basis of embodiment 4, in the present embodiment, further provide the preferred size of each structure of lampshade:
As shown in Figure 5, the first segmental arc 1 two ends, the second segmental arc 2 upper ends are 25mm ~ 35mm to the distance d1/2 of symmetry axis; The second segmental arc 2 lower ends, the 3rd segmental arc 3 upper ends are 24mm ~ 25mm to the distance d7/2 of symmetry axis; The 3rd segmental arc 3 lower ends, the 4th segmental arc 4 upper ends are 21mm ~ 22mm to the distance d6/2 of symmetry axis; The 4th segmental arc 4 lower ends are 20.5mm ~ 20.95mm to the distance d4/2 of symmetry axis; The vertical height (h2-h3) of the 3rd segmental arc 3 correspondences is 2mm ~ 3mm, and the vertical height (h3-h4) of the 4th segmental arc 4 correspondences is 0.05mm ~ 0.15mm, and the radius R 3 of the 3rd segmental arc 3 correspondences is 4mm, and the radius R 4 of the 4th segmental arc 4 correspondences is 1mm.
The height h1(of this lampshade is including installing mechanism) be 38mm ~ 40mm, wherein, the vertical height of projection 6 and groove 7 is 1mm, and the outwardly length (d5-d4)/2 of projection 6 is 0.54mm, and the degree of depth (d4-d3)/2 that groove 7 caves inward is 0.4mm.
The inner diameter d 2 of described installing mechanism is 38mm ~ 39mm, and outside diameter d 4 is 40mm ~ 41mm, is highly 2mm ~ 3mm.
The rising angle of common bulb lamp is generally monolateral is less than 120 °, therefore, cannot bright dipping in horizontal level corresponding to the 3rd segmental arc and following position, and the setting of employing this programme, the 3rd segmental arc is sharply drawn in lampshade lower end, and by reflection or the refraction of LED lamp, the 3rd segmental arc 3 also has the part position can bright dipping, increase rising angle, the 4th segmental arc 4 further draw in and with flat segments 5 smooth connections.
Below be only preferred embodiment of the present utility model, protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, should be considered as protection domain of the present utility model.
Claims (10)
1. a wide-angle bright dipping lampshade, its longitudinal section is the zhou duicheng tuxing take straight line L as symmetry axis, it is characterized in that, this longitudinal section comprises and being positioned at topmost and first segmental arc (1) of mid point on symmetry axis, and the two ends of the first segmental arc (1) are respectively connected with a side line segment; Described side line segment comprises at least two segmental arcs in smoothing junction, and side line segment reduces from top to bottom gradually to the horizontal range of symmetry axis, and radius corresponding to segmental arc that forms side line segment also reduces from top to bottom successively.
2. a kind of wide-angle bright dipping lampshade according to claim 1, it is characterized in that, described side line segment comprises the second segmental arc (2), the 3rd segmental arc (3), the 4th segmental arc (4), wherein: the second segmental arc (2) is connected with the first segmental arc (1), the 3rd segmental arc (3) is connected with the second segmental arc (2), the 4th segmental arc (4) is connected with the 3rd segmental arc (3); The center of circle of the second segmental arc (2) and the 3rd segmental arc (3) is in lampshade inner side, and the center of circle of the 4th segmental arc (4) is in lampshade outside.
3. a kind of wide-angle bright dipping lampshade according to claim 2, it is characterized in that, this lampshade lower end is also provided with installing mechanism cylindraceous, and the longitudinal section of this installing mechanism comprises two vertical flat segments (5), and flat segments (5) upper end is connected with the 4th segmental arc (4) lower end.
4. a kind of wide-angle bright dipping lampshade according to claim 3, is characterized in that, outside, described installing mechanism lower end is also provided with the snap fit of fastening lampshades.
5. a kind of wide-angle bright dipping lampshade according to claim 4, is characterized in that, described snap fit consists of projection (6) and groove (7): projection (6) is fixed on outside, installing mechanism lower end and outwards outstanding; Groove (7) is positioned at the top of projection (6), cave inward, and the upper end of the lower end of groove (7) and projection (6) is positioned at same level height.
6. a kind of wide-angle bright dipping lampshade according to claim 5, is characterized in that, the vertical height of described projection (6) and groove (7) is 1mm, and the outwardly 0.54mm of projection (6), groove (7) 0.4mm that caves inward.
7. according to the arbitrary described a kind of wide-angle bright dipping lampshade of claim 4 to 6, it is characterized in that, described snap fit quantity is 4, is evenly arranged on the week of installing mechanism upwards.
8. according to the arbitrary described a kind of wide-angle bright dipping lampshade of claim 3 to 6, it is characterized in that, the internal diameter of described installing mechanism is 38mm ~ 39mm, and external diameter is 40mm ~ 41mm.
9. according to the arbitrary described a kind of wide-angle bright dipping lampshade of claim 3 to 6, it is characterized in that, the height of this lampshade is 38mm ~ 40mm, and wherein the height of installing mechanism is 2mm ~ 3mm.
10. according to the arbitrary described a kind of wide-angle bright dipping lampshade of claim 2 to 6, it is characterized in that, radius corresponding to described the 3rd segmental arc (3) is 4mm, and radius corresponding to described the 4th segmental arc (4) is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675944.XU CN203560828U (en) | 2013-10-30 | 2013-10-30 | Lamp cover with large light emitting angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675944.XU CN203560828U (en) | 2013-10-30 | 2013-10-30 | Lamp cover with large light emitting angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560828U true CN203560828U (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320675944.XU Expired - Fee Related CN203560828U (en) | 2013-10-30 | 2013-10-30 | Lamp cover with large light emitting angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534310A (en) * | 2014-12-09 | 2015-04-22 | 广东聚科照明股份有限公司 | Light source capable of adjusting color temperature |
-
2013
- 2013-10-30 CN CN201320675944.XU patent/CN203560828U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534310A (en) * | 2014-12-09 | 2015-04-22 | 广东聚科照明股份有限公司 | Light source capable of adjusting color temperature |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20181030 |
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| CF01 | Termination of patent right due to non-payment of annual fee |