CN101818885B - Lamp with transparent cover - Google Patents
Lamp with transparent cover Download PDFInfo
- Publication number
- CN101818885B CN101818885B CN2009101186257A CN200910118625A CN101818885B CN 101818885 B CN101818885 B CN 101818885B CN 2009101186257 A CN2009101186257 A CN 2009101186257A CN 200910118625 A CN200910118625 A CN 200910118625A CN 101818885 B CN101818885 B CN 101818885B
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- Prior art keywords
- opening
- transparency cover
- length
- housing
- light fixture
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Abstract
The invention discloses a lamp, comprising: a housing, which includes a top end limiting an opening and a tail end; a light source base, which is arranged in the vicinity of the tail end of the housing and used for installing at least one light source; a light-gathering shield, which includes a small opening end arranged in the vicinity of the tail end of the housing and a large opening end arranged in the vicinity of the top end of the housing, wherein the at least one light source is arranged in the vicinity of the small opening end; and a transparent cover, which is used for closing the opening at the top end of the housing. In the lamp according to the invention, the top end of the housing forms, along inner circumferential wall, an annular groove for accommodating at least partial circumference of the transparent cover, and both the transparent cover and the opening are elliptical wherein the length of the long elliptical axis of the transparent cover is equal to or smaller than that of the long elliptical axis of the opening and larger than that of the short elliptical axis of the opening, and the length of the short elliptical axis of the transparent cover is equal to or smaller than the length of the short elliptical axis of the opening.
Description
Technical field
The present invention relates to a kind of illuminating equipment, relate in particular to a kind of light fixture with transparency cover.
Background technology
In the light fixture of prior art, for can also realize preventing dust in printing opacity, waterproof, the purpose such as attractive in appearance, generally to cover cap be set to light fixture.Usually, the material that the light fixture cover cap uses has two kinds, and a kind of is plastic material, and a kind of is glass material.
Light fixture cover cap for plastic material: aspect light transmission efficiency, require it to have the thickness of diaphragm type; Aspect flame resistance, require its thickness more thick better; Above two aspects are conflicting.And for transparent plastic material, thickness just is difficult to satisfy UL-94 VO standard less than 3 millimeters, therefore, can only sacrifice light transmission and satisfy UL-94 VO standard.
Light fixture cover cap for glass material: if use circular glass, easily carry out glass processing, but be difficult to and metal shell mechanical connection securely.As shown in Figure 1, the circular glass 50 with lug 55 easily with the mechanical connection securely of the metal shell 30 with otch 33, but such glass processing on a large scale.
A kind of fitting structure that discloses for No. 200520113155.2 as Chinese patent, it comprises: a shell, an euphotic cover and a light source, wherein this shell inside bottom is provided with a lamp socket, install for light source, and shell upper opening place is provided with a section of class, this euphotic cover is comprised of lid and the glass cover that central authorities are provided with perforation, the outer rim of this glass cover is made as the depression with height fall, this depression is sheathed for a sealing ring, and the glass cover that will be arranged with sealing ring is placed in the section of class of shell aperture, then lid is combined with the peristome of shell.Can find out from the description of this patent, the glass cover complex structure of its use and the installation of glass cover are fixing need to utilize lid to be combined to complete with the peristome of shell.Therefore, the structural detail of this light fixture is many, manufacturing cost is high, installation steps are loaded down with trivial details.
Therefore, be necessary to provide a kind of and be convenient to processing, be convenient to install transparency cover fixing and that have good light permeability.
Summary of the invention
The purpose of this invention is to provide a kind of light fixture with oval transparency cover, it has advantages of the processing of being convenient to, be convenient to install fixing and light transmission is good.
Technical scheme of the present invention is achieved in that provides a kind of light fixture, and it comprises: housing, and it has top and tail end, and described top limits an opening; Light source base, the tail end setting of its contiguous housing is used for installing at least one light source; Snoot, it has osculum end and big opening end, the tail end setting of the contiguous housing of osculum end, the top of the contiguous housing of big opening end arranges, and the contiguous described osculum end of described at least one light source is arranged; And transparency cover, it is used for the opening on the top of closure casing.Light fixture of the present invention is characterised in that: the top of housing is formed for holding the cannelure of at least part of periphery of transparency cover along internal perisporium, and, the shape of transparency cover and opening is ellipse, wherein, the length of the transverse of transparency cover be equal to or less than opening transverse length and greater than the length of the ellipse short shaft of opening, the length of the ellipse short shaft of transparency cover is equal to or less than the length of the ellipse short shaft of opening.
During assembling, first transparency cover is put to the opening on top, then transparency cover is rotated to an angle, such as 30,60,90 or 120, make the place, two ends of the transverse of transparency cover at least screw in cannelure, thereby transparency cover can not broken away from from the opening on top.
Selectively, cannelure near the degree of depth at the end points place of the ellipse short shaft of opening greater than in the degree of depth near the end points place of the transverse of opening.For example, at the end points place near the transverse of opening, the degree of depth of cannelure is more than or equal to zero, that is, can not slot at the end points place near the transverse of opening, because these positions can be not used in fixedly transparency cover.Near the place, two ends of the ellipse short shaft of opening, the distance between the relative position of the bottom land of cannelure is more than or equal to the length of the transverse of transparency cover respectively.
Preferably, the track of the bottom land of cannelure is circular, and circular diameter is more than or equal to the length of the transverse of transparency cover.Like this, cannelure has formed the rotate path of transparency cover periphery.
Alternatively, have the outward appearance of sub-circular for the top that makes light fixture, can make the length of ellipse short shaft of sheet glass near the length of its transverse.Alternatively, the length of the ellipse short shaft of sheet glass is about 90%-98% of the length of its transverse, such as, about 94%-96%.
Preferably, the top of housing further forms ring-shaped step below cannelure along internal perisporium, and ring-shaped step is used for arranging the elasticity locating ring.More preferably, the upper surface of elasticity locating ring when free state higher than the downside of cannelure.Like this, described elasticity locating ring is lifted to the lower surface of described transparency cover on the lower surface of described cannelure when free state.In installation process, the elastic force that need first overcome the elasticity locating ring is pressed transparency cover downwards to being in the position of approximate horizontal height with cannelure, and then the rotation transparency cover makes the two ends of the transverse of described transparency cover screw in described cannelure at least.Preferably, with about 90 degree of described transparency cover rotation.
The elasticity locating ring can be for having elasticity or flexible rubber ring, becket or composite material ring.
More preferably, viscose glue be can apply after transparency cover is rotated in place and transparency cover and housing seal rotated freely and make to prevent transparency cover.
Alternatively, the track of the bottom land of described cannelure can not be circular, such as selecting ellipse or other shapes, as long as it does not hinder the rotation of transparency cover.
Alternatively, snoot of the present invention can be the required forms such as coniform or multi-prism taper.
Alternately, can be completed by the shoulder on the internal perisporium on the top that is arranged on housing or packing ring the support of transparency cover before rotation, even can be completed by snoot.
Lamp structure with oval transparency cover of the present invention can be applied to various types of light fixtures, includes, but are not limited to the light fixture of powering by modes such as direct current, alternating current, batteries.
The invention has the beneficial effects as follows: oval-shaped transparency cover is easily processed, and can carry out large-scale processing production by the method for prior art; Only by ellipse of revolution shape transparency cover, it is connected securely with lamp casing; In addition, if oval transparency cover take glass as material, can satisfy the requirement of flame resistance and have good light transmission.
Description of drawings
Fig. 1 is the schematic perspective view of the light fixture of prior art.
Fig. 2 is the schematic diagram of the transparency cover with lug of prior art.
Fig. 3 is the schematic perspective view according to the light fixture with oval transparency cover of one embodiment of the present invention.
Fig. 4 is the top view according to the light fixture with oval transparency cover of one embodiment of the present invention.
Fig. 5 is the cross-sectional schematic according to the housing of the light fixture with oval transparency cover of one embodiment of the present invention.
Fig. 6 is the cross-sectional schematic according to the housing of the light fixture with oval transparency cover of one embodiment of the present invention, transparency cover and elasticity locating ring.
Fig. 7 is according to the schematic diagram of one embodiment of the present invention before oval transparency cover rotation.
Fig. 8 is according to the schematic diagram of one embodiment of the present invention after oval transparency cover 90-degree rotation.
The specific embodiment
To shown in Figure 6, light fixture 10 of the present invention comprises housing 100, transparency cover 300, elasticity locating ring 400, light source base 500, snoot 700 and power connector end 800 as Fig. 3.
Further form ring-shaped step 124 below cannelure 122, ring-shaped step 124 is used for placing elasticity locating ring 400.In the present embodiment, elasticity locating ring 400 is rubber ring.After elasticity locating ring 400 was in place, its upper surface will be higher than the downside 1225 of cannelure 122 when free state, and the function of this elasticity locating ring 400 will be elaborated in the back.
The tail end 160 of light source base 500 contiguous housings 100 arranges and is used for installing suitable light source arbitrarily, such as one or more LED is installed.Certainly, any light emitting source that uses in lighting field can become light source of the present invention.In addition, power connector end 800 is used to light source power supply.Yet the present invention is not limited to power connector end 800 shown in the drawings, arbitrary form for light source provides the coupling part of the energy can be as power connector end of the present invention.
Snoot 700 has osculum end and big opening end (not label), and the tail end 160 of the contiguous housing 100 of osculum end arranges, and the top 120 of the contiguous housing 100 of big opening end arranges.Light source is close to this osculum end and arranges, makes the light that light source sends fully to enter in snoot 700.
To shown in Figure 8, the shape of transparency cover 300 is also oval as Fig. 7.In the present embodiment, transparency cover 300 is sheet glass.Yet in other alternative embodiments, transparency cover 300 also can be made by other transparent material, such as plastic material.Snap in cannelure 122 in order to make transparency cover 300 can put into opening 125 and rotate, the length of the transverse of transparency cover 300 be slightly less than opening 125 transverse length but greater than the length of the ellipse short shaft of opening 125, the length of the ellipse short shaft of transparency cover 300 is slightly less than the length of the ellipse short shaft of opening 125.
Be appreciated that cannelure 122 is will be greater than in the degree of depth near the end points place of the transverse of opening 125 near the degree of depth at the end points place of the ellipse short shaft of opening 125.In order to allow the transparency cover can 90-degree rotation, the bottom land 1227 of cannelure 122 be respectively should be more than or equal to the length of the transverse of transparency cover 300 near the distance between two parts at the place, two ends of the ellipse short shaft of opening 125.The bottom land 1227 of cannelure 122 preferably forms slightly larger in diameter in the circle of the length of the transverse of transparency cover 300.
During assembling, the position relationship that first transparency cover 300 is corresponding with major axis according to transverse, minor axis and minor axis are corresponding puts to opening 125 and seat is placed on the elasticity locating ring.The elasticity locating ring is lifted to lower surface 1225 higher than cannelure 122 with the lower surface of transparency cover 300.Next, the elastic force that overcomes elasticity locating ring 400 is pressed transparency cover 300 downwards, then with about 90 degree of transparency cover 300 rotation, make the two ends of the transverse of transparency cover 300 be screwed into respectively the roughly position corresponding with the two ends of the ellipse short shaft of opening 125 in described cannelure 122.The elasticity locating ring applies to transparency cover 300 power of urging, thus make transparency cover 300 can be easily with respect to cannelure 122 rotations, and then can be from the top yet 120 opening 125 break away from easily, completed thus assembling.More preferably, can apply viscose glue and rotate freely to prevent transparency cover 300 after transparency cover 300 is rotated in place, and play the effect of sealed transparent lid and housing.
In addition, the length of the ellipse short shaft of sheet glass 300 can be for about 90%-98% of the length of its transverse, such as about 95%.Like this, can keep the top 120 of light fixture 10 to have the outward appearance of sub-circular.
As another optional embodiment, near the end points of the transverse of opening 125, the degree of depth of cannelure 122 equals zero, namely, can not form groove and only form step at the end points place near the transverse of opening 125, because fixedly do not need the groove of these positions during transparency cover 300.
Claims (8)
1. light fixture comprises:
Housing, it has top and tail end, and described top limits an opening;
Light source base, the tail end setting of its contiguous described housing is used for installing at least one light source;
Snoot, it has osculum end and big opening end, the tail end setting of the contiguous described housing of described osculum end, the top of the contiguous described housing of described big opening end arranges, and the contiguous described osculum end of described at least one light source is arranged; And
Transparency cover, it is for the described opening on the top of sealing described housing;
It is characterized in that:
The top of described housing is formed for holding the cannelure of at least part of periphery of described transparency cover along internal perisporium, and, the shape of described transparency cover and described opening is ellipse, wherein, the length of the transverse of described transparency cover be equal to or less than described opening transverse length and greater than the length of the ellipse short shaft of described opening, the length of the ellipse short shaft of described transparency cover is equal to or less than the length of the ellipse short shaft of described opening.
2. light fixture as claimed in claim 1, wherein, the bottom land of described cannelure forms circle, and the diameter of described circle is more than or equal to the length of the transverse of described transparency cover.
3. light fixture as claimed in claim 2, wherein, at the end points place near the transverse of described opening, the degree of depth of described cannelure equals zero.
4. light fixture as claimed in claim 1, wherein, the length of the ellipse short shaft of described transparency cover is the 90%-98% of the length of its transverse.
5. light fixture as described in any one in claim 1-4, wherein, further be formed with ring-shaped step below described cannelure along internal perisporium, and described ring-shaped step is used for arranging the elasticity locating ring.
6. light fixture as claimed in claim 5, wherein, the upper surface of described elasticity locating ring when free state higher than the downside of described cannelure.
7. light fixture as described in any one in claim 1-4, wherein, described transparency cover is sheet glass.
8. light fixture as described in any one in claim 1-4, wherein, be applied with viscose glue between described transparency cover and described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101186257A CN101818885B (en) | 2009-02-26 | 2009-02-26 | Lamp with transparent cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101186257A CN101818885B (en) | 2009-02-26 | 2009-02-26 | Lamp with transparent cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101818885A CN101818885A (en) | 2010-09-01 |
| CN101818885B true CN101818885B (en) | 2013-06-05 |
Family
ID=42654086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101186257A Expired - Fee Related CN101818885B (en) | 2009-02-26 | 2009-02-26 | Lamp with transparent cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101818885B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453470A (en) * | 2012-05-31 | 2013-12-18 | 海洋王（东莞）照明科技有限公司 | Lamp and face cover rotation preventing structure thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1755192A (en) * | 2004-09-27 | 2006-04-05 | 陈仕群 | LED lamp |
| CN2847033Y (en) * | 2005-10-20 | 2006-12-13 | 黎森明 | Anti-fog tubular lamp decoration frame |
| CN200979136Y (en) * | 2006-01-26 | 2007-11-21 | 王子能 | High power LED reflector lamp |
-
2009
- 2009-02-26 CN CN2009101186257A patent/CN101818885B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1755192A (en) * | 2004-09-27 | 2006-04-05 | 陈仕群 | LED lamp |
| CN2847033Y (en) * | 2005-10-20 | 2006-12-13 | 黎森明 | Anti-fog tubular lamp decoration frame |
| CN200979136Y (en) * | 2006-01-26 | 2007-11-21 | 王子能 | High power LED reflector lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101818885A (en) | 2010-09-01 |
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Granted publication date: 20130605 Termination date: 20150226 |
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