CN203948989U - Be applicable to LED lighting and the LED cavity thereof in a district - Google Patents
Be applicable to LED lighting and the LED cavity thereof in a district Download PDFInfo
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- CN203948989U CN203948989U CN201420348323.5U CN201420348323U CN203948989U CN 203948989 U CN203948989 U CN 203948989U CN 201420348323 U CN201420348323 U CN 201420348323U CN 203948989 U CN203948989 U CN 203948989U
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Abstract
The utility model provides a kind of LED light fixture and LED cavity thereof that is applicable to a district, and this LED cavity comprises: housing, and this housing has bottom surface and sidewall, and described bottom surface and sidewall form an open space; LED printed circuit board (PCB), is arranged on the bottom surface of described housing; Lens, cover on described LED printed circuit board (PCB); Face shield, covers on described lens, makes described open space form the INCREASEDSAFETY cavity of a sealing; Wherein, the gap between the edge of described lens and described housing, face shield also adopts sealant sealing.The utility model can significantly reduce the wall thickness of LED cavity, is conducive to reduce costs.
Description
Technical field
The utility model relates to a kind of LED lighting and LED cavity thereof that is applicable to a district.
Background technology
In prior art, what conventionally adopt for light emitting diode (LED) lighting of a district (zone1) is all flame-proof type (Exd) design, to meet the requirement of explosion-proof criteria in a district.Conventionally, LED printed circuit board (PCB) (PCB) is arranged in the shell of flame-proof type, and the shell of this flame-proof type need to have firm sphere cover and housing to meet overvoltage test.
But in order to meet the requirement of flame proof, the wall thickness of shell needs very large, this causes cost very high, and permanent plant is also heavier.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of LED lighting and LED cavity thereof that is applicable to a district, can significantly reduce the wall thickness of LED cavity, is conducive to reduce costs.
For solving the problems of the technologies described above, the utility model provides a kind of LED cavity that is applicable to a district, comprising:
Housing, this housing has bottom surface and sidewall, and described bottom surface and sidewall form an open space;
LED printed circuit board (PCB), is arranged on the bottom surface of described housing;
Lens, cover on described LED printed circuit board (PCB);
Face shield, covers on described lens, makes described open space form INCREASEDSAFETY (Exe) cavity of a sealing;
Wherein, the gap between the edge of described lens and described housing, face shield also adopts sealant (sealing compound) sealing.
According to an embodiment of the present utility model, the bottom surface of described housing has opening, stretch out from described opening with the electrical wiring that described LED printed circuit board (PCB) is connected, the gap between the sidewall of described opening and described LED printed circuit board (PCB), electrical wiring adopts sealant sealing.
According to an embodiment of the present utility model, the bottom surface of described housing has groove in abutting connection with described side-walls, and described LED printed circuit board (PCB) is arranged on the region between described groove, and the edge of described lens stretches into downwards in described groove.
According to an embodiment of the present utility model, described face shield is sphere cover, and this sphere cover comprises:
Sphere portion;
With the planar portions that described sphere portion joins, this planar portions is around described sphere portion, and this planar portions is pushed down the edge of described lens.
According to an embodiment of the present utility model, this LED cavity also comprises: sphere cover pressing plate, this sphere cover pressing plate is pushed down the planar portions of described sphere cover, and one side of this sphere cover pressing plate offsets with the sphere portion of described sphere cover, and the another side of this sphere cover pressing plate and the sidewall of described housing offset.
According to an embodiment of the present utility model, between the edge of described lens and the sidewall of described groove, be also provided with O type circle.
The utility model also provides a kind of LED light fixture that is applicable to a district, comprising:
LED cavity described in above-mentioned any one;
Driver (driver) cavity being connected with this LED cavity.
Compared with prior art, the utlity model has following advantage:
In the LED cavity of the utility model embodiment, shell, LED printed circuit board (PCB), lens and face shield form the INCREASEDSAFETY cavity of a sealing, and gap between the edge of lens and housing and face shield also adopts sealant sealing, explosion-proof to form (Ex) combination, this structure is compared traditional flame-proof type cavity, wall thickness significantly reduces, and is conducive to reduce costs.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the LED cavity of the utility model embodiment.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail, but should not limit protection domain of the present utility model with this.
With reference to figure 1, the LED cavity of the present embodiment comprises: housing 1, electrical wiring 2, sealant 3, LED printed circuit board (PCB) 4, O type circle (O-ring) 5, lens 6, sphere cover pressing plate 7, face shield 8.
Furthermore, housing 1 has bottom surface and sidewall, and this bottom surface and sidewall surround an open space, and LED printed circuit board (PCB) 4 is positioned at this open space, and this LED printed circuit board (PCB) 4 is arranged on the bottom surface of housing 1.More specifically, the bottom surface of the back side of this LED printed circuit board (PCB) 4 and housing 1 laminating.On the front of this LED printed circuit board (PCB) 4, can be integrated with multiple LED devices, for example, can be integrated with light emitting diode matrix.
Lens 6 cover on LED printed circuit board (PCB) 4, and particularly, lens 6 cover the LED device on LED printed circuit board (PCB) 4.
Face shield 8 covers on lens 6, makes aforementioned open space form INCREASEDSAFETY (Exe) cavity of a sealing.
Wherein, the gap between the edge of lens 6 and housing 1 and face shield 8 adopts sealant 3 to seal, explosion-proof to form (Ex) combination.Sealing agent 3 can be the material of various routines, such as sealing compound etc.
As a nonrestrictive example, the bottom surface of this housing 1 has opening, and the electrical wiring 2 being connected with LED printed circuit board (PCB) 4 is stretched out from this opening.Furthermore, this opening can communicate with the driver cavity of LED light fixture, and electrical wiring 2 can be opened on the drive circuit that is arranged in driver cavity and be connected by this.
Between opening on housing 1 bottom surface and the back side of LED printed circuit board (PCB) 4 and electrical wiring 2, also there is gap.Preferably, these gaps also adopt sealant 3 to seal.
As a preferred embodiment, the bottom surface of housing 1 has groove in abutting connection with side-walls, and LED printed circuit board (PCB) 4 is arranged in the region between groove.In other words, the bottom surface of housing 1 comprises the boss between groove and groove, and this LED printed circuit board (PCB) 4 is arranged on boss.The edge of lens 6 stretches into downwards in the groove of housing 1 bottom surface, thereby this boss and LED printed circuit board (PCB) 4 is formed to the form of semi-surrounding.
Be sphere cover as a nonrestrictive example face shield 8, this sphere cover comprises sphere portion and planar portions, and this planar portions is joined around sphere portion and with sphere portion.Wherein, the sphere cover of sphere cover 8 is pushed down the edge of described lens 6, namely by the edge limitation of lens 6 in groove.In other examples, this face shield 8 can be also the face shield of plane.
The bottom surface of housing 1 arranges groove, and the edge of lens 6 stretches in groove, and the planar portions of face shield 8 is by the edge limitation of lens 6 in groove, and such structure makes connected mode more firm.More preferably, this can adopt the trap the ball planar portions of face shield 8 of sphere cover pressing plate 7, so that it is more firm.One side of this sphere cover pressing plate 7 offsets with the sphere portion of face shield 8, and the sidewall of another side and housing 1 offsets.
In addition, between the recess sidewall on the edge of lens 6 and housing 1 bottom surface, can also be provided with O type circle 5, to make the tightr of the edge of lens 6 and groove interlock.
In addition, the present embodiment also provides a kind of LED light fixture that is applicable to a district, comprises the LED cavity shown in Fig. 1 and coupled driver cavity.For example, this driver cavity can be identical with the opening on housing 1 bottom surface, and electrical wiring 2 can stretch in driver cavity, is connected with the drive circuit being arranged in driver cavity.
By upper, the LED prerequisite of the present embodiment can be eliminated overvoltage test, can significantly reduce wall thickness to make cost minimization.
Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; can make possible variation and amendment; therefore the scope that, protection domain of the present utility model should be defined with the utility model claim is as the criterion.
Claims (7)
1. a LED cavity that is applicable to a district, is characterized in that, comprising:
Housing, this housing has bottom surface and sidewall, and described bottom surface and sidewall form an open space;
LED printed circuit board (PCB), is arranged on the bottom surface of described housing;
Lens, cover on described LED printed circuit board (PCB);
Face shield, covers on described lens, makes described open space form the INCREASEDSAFETY cavity of a sealing;
Wherein, the gap between the edge of described lens and described housing, face shield also adopts sealant sealing.
2. LED cavity according to claim 1, it is characterized in that, the bottom surface of described housing has opening, stretches out from described opening with the electrical wiring that described LED printed circuit board (PCB) is connected, and the gap between the sidewall of described opening and described LED printed circuit board (PCB), electrical wiring adopts sealant sealing.
3. LED cavity according to claim 1, is characterized in that, the bottom surface of described housing has groove in abutting connection with described side-walls, and described LED printed circuit board (PCB) is arranged on the region between described groove, and the edge of described lens stretches into downwards in described groove.
4. LED cavity according to claim 3, is characterized in that, described face shield is sphere cover, and this sphere cover comprises:
Sphere portion;
With the planar portions that described sphere portion joins, this planar portions is around described sphere portion, and this planar portions is pushed down the edge of described lens.
5. LED cavity according to claim 4, it is characterized in that, also comprise: sphere cover pressing plate, this sphere cover pressing plate is pushed down the planar portions of described sphere cover, one side of this sphere cover pressing plate offsets with the sphere portion of described sphere cover, and the another side of this sphere cover pressing plate and the sidewall of described housing offset.
6. LED cavity according to claim 3, is characterized in that, is also provided with O type circle between the edge of described lens and the sidewall of described groove.
7. a LED light fixture that is applicable to a district, is characterized in that, comprising:
LED cavity in claim 1 to 6 described in any one;
The driver cavity being connected with described LED cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348323.5U CN203948989U (en) | 2014-06-26 | 2014-06-26 | Be applicable to LED lighting and the LED cavity thereof in a district |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348323.5U CN203948989U (en) | 2014-06-26 | 2014-06-26 | Be applicable to LED lighting and the LED cavity thereof in a district |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948989U true CN203948989U (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420348323.5U Active CN203948989U (en) | 2014-06-26 | 2014-06-26 | Be applicable to LED lighting and the LED cavity thereof in a district |
Country Status (1)
| Country | Link |
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| CN (1) | CN203948989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885639A (en) * | 2019-11-29 | 2021-06-01 | 马赛尔·P·霍夫萨埃斯 | Temperature control switch |
-
2014
- 2014-06-26 CN CN201420348323.5U patent/CN203948989U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885639A (en) * | 2019-11-29 | 2021-06-01 | 马赛尔·P·霍夫萨埃斯 | Temperature control switch |
| CN112885639B (en) * | 2019-11-29 | 2024-03-19 | 马赛尔·P·霍夫萨埃斯 | Temperature control switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |