CN202469777U - Light-emitting diode (LED) roadway lamp - Google Patents

Abstract

The utility model belongs to the technical field of illumination, and particularly discloses a light-emitting diode (LED) roadway lamp, which comprises a cavity-shaped lamp body, a lens arranged at the front end of the lamp body, a bottom case arranged at the rear end of the lamp body, and a power supply arranged in the lamp body. An LED light source driven by the power supply is arranged on the connecting end face of the lamp body and the lens. The lamp body and the bottom case are fixed together through screws with counter bores. A contact gap between the bottom case and the lamp body is less than 0.3mm, the surface roughness of a contact surface is 0.3+/-0.1mm, and a contact length is more than 14mm. Therefore, the LED roadway lamp is high in explosion resistance and safety, and is applied to fixed local illumination in underworkings and chambers of a coal mine.

Description

A kind of LED tunnel lamp

Technical field

The utility model relates to lighting technical field, relates in particular to a kind of LED tunnel lamp.

Background technology

Safety in production is the most important ring in the colliery, and in the progress of coal mining meeting, discharges a large amount of inflammable gases.Just can ignite blast in case run into spark etc.Consequence is very serious.Therefore, in the harsh down-hole of condition, the anti-system that ensures safety of lighting is particularly important.

Summary of the invention

It is good that the technical problem that the utility model need solve provides a kind of explosion-proof, the LED tunnel lamp that security performance is high.

The technical problem that the utility model need solve realizes through following technical scheme: a kind of LED tunnel lamp; Comprise that chamber shape lamp body, lamp body front end are provided with lens, the lamp body rear end is provided with in end box, the lamp body and is provided with power supply; At the be connected led light source that end face on be provided with by power drives of lamp body with lens; Described lamp body and end box are fixed together through the screw of band counter sink; Contact gap between end box and the lamp body is less than 0.3mm, and the surface roughness of contact-making surface is 0.3 ± 0.1 mm, and contact length is greater than 14mm.

Further: in the lamp of above-mentioned LED tunnel, be provided with the pad that can stop the spark unofficial biography between described lens and the lamp body.Described pad is an elliptical ring, and material is a red copper, thick 2 ± 0.5mm, and the ring distance is greater than 14 ± 2mm.Joint between said lens and the lamp body is provided with flat head screw and compressing tablet, and the embedding lamp body pressed together lens and pad after flat head screw ran through compressing tablet.Embedding place of flat head screw also embedding epoxy resin is arranged.Described lamp body is provided with the housing pin and the rubber ring of attached cable line.The arc surface of the outer ovalize of described lens, internal layer is two symmetrical refraction faces.Box of the described end is provided with the link of being convenient to install this tunnel lamp.

Compared with prior art, the LED tunnel lamp of the utility model, described lamp body and end box are fixed together through the screw of band counter sink, to prevent that clashing into screw terminal causes it to break, and makes light fixture lose the function of flame proof.Contact gap between end box and the lamp body is less than 0.3mm, and the surface roughness of contact-making surface is 0.3 ± 0.1 mm, and contact length has effectively stoped the unofficial biography of internal electrical spark greater than 14mm.Be provided with the pad that can stop the spark unofficial biography between described lens and the lamp body.Described pad is an elliptical ring, and material is a red copper, thick 2 ± 0.5mm, and the ring distance is greater than 14 ± 2mm.When the inner ignition of lamp body, can stop the spark unofficial biography, release energy simultaneously.Joint between said lens and the lamp body is provided with flat head screw and compressing tablet, and the embedding lamp body pressed together lens and pad after flat head screw ran through compressing tablet.Flat head screw also has the foreign object strike of preventing screw terminal and causes that flame proof lost efficacy.Embedding place of flat head screw also embedding epoxy resin is arranged, prevent the people for after opening compressing tablet, cause flame proof and lost efficacy.The arc surface of the outer ovalize of described lens, internal layer is two symmetrical refraction faces, and it cooperates the rectangular luminous intensity distribution of formation with light source, and range of exposures length can reach 25 ± 5m, wide 10 ± 2m.So this LED tunnel lamp explosion-proof is good, safe.It is applicable to the fixed local lighting usefulness in colliery underworkings and the chamber very much.

Description of drawings

Fig. 1 is the utility model vertical section structure sketch map;

Wherein, 1 lamp body, 2 lens, 3 end boxes, 4 power supplys, 5 light sources, 6 pads, 7 flat head screws, 8 compressing tablets, 9 housing pins, 10 rubber rings, 11 links.

Specific embodiments

With reference to the accompanyingdrawing 1 and the specific embodiment the utility model is described.

A kind of LED tunnel lamp; Comprise that chambershape lamp body 1, lamp body front end are provided withlens 2, the lamp body rear end is provided with inend box 3, thelamp body 1 and is provided withpower supply 4; Be provided with the led light source 5 by power drives on the end face in lamp body and being connected of lens, describedlamp body 1 is fixed together with the screw ofend box 3 through the band counter sink, and the contact gap betweenend box 3 and the lamp body is less than 0.3mm; The surface roughness of contact-making surface is 0.3 ± 0.1 mm, and contact length is greater than 14mm.Be provided with thepad 6 that can stop the spark unofficial biography between describedlens 2 and the lamp body 1.Describedpad 6 is an elliptical ring, and material is a red copper, thick 2 ± 0.5mm, and the ring distance is greater than 14 ± 2mm.Joint between saidlens 2 and thelamp body 1 is provided with flat head screw 7 and compressing tablet 8, and flat head screw 7 runs through compressing tablet 8 back embeddinglamp bodies 1lens 2 andpad 6 are pressed together.Embedding place of flat head screw 7 also embedding epoxy resin is arranged.Describedlamp body 1 is provided with thehousing pin 9 and therubber ring 10 of attached cable line.The arc surface of the outer ovalize of described lens, internal layer is two symmetrical refraction faces.Box of the describedend 3 is provided with thelink 11 of being convenient to install this tunnel lamp.Described lamp body and end box are fixed together through the screw of band counter sink, to prevent that clashing into screw terminal causes it to break, and makes light fixture lose the function of flame proof.Contact gap betweenend box 3 and thelamp body 1 is less than 0.3mm, and the surface roughness of contact-making surface is 0.3 ± 0.1 mm, and contact length has effectively stoped the unofficial biography of internal electrical spark greater than 14mm.Be provided with thepad 6 that can stop the spark unofficial biography between describedlens 2 and the lamp body 1.Describedpad 6 is an elliptical ring, and material is a red copper, thick 2 ± 0.5mm, and the ring distance is greater than 14 ± 2mm.Whenlamp body 1 inner the ignition, can stop the spark unofficial biography, release energy simultaneously.Joint between saidlens 2 and thelamp body 1 is provided with flat head screw 7 and compressing tablet 8, and flat head screw 7 runs through compressing tablet 8 back embeddinglamp bodies 1lens 2 andpad 6 are pressed together.Flat head screw 7 also has the foreign object strike of preventing screw terminal and causes that flame proof lost efficacy.Embedding place of flat head screw 7 also embedding epoxy resin is arranged, prevent the people for after opening compressing tablet, cause flame proof and lost efficacy.The arc surface of describedlens 2 outer ovalizes, internal layer are two symmetrical refraction faces, and it cooperates the rectangular luminous intensity distribution of formation with light source, and range of exposures length can reach 25 ± 5m, wide 10 ± 2m.So this LED tunnel lamp explosion-proof is good, safe.It is applicable to the fixed local lighting usefulness in colliery underworkings and the chamber very much.

The above is a preferred embodiment of the utility model, is not breaking away under the utility model design situation, carries out any conspicuous distortion and replacement, all belongs to the utility model protection domain.

Claims (8)

1. LED tunnel lamp; Comprise that chamber shape lamp body (1), lamp body front end are provided with lens (2), the lamp body rear end is provided with in end box (3), the lamp body (1) and is provided with power supply (4); Be provided with led light source (5) on the end face in lamp body and being connected of lens by power drives; It is characterized in that: described lamp body (1) and end box (3) are fixed together through the screw of band counter sink; Contact gap between end box (3) and the lamp body is less than 0.3mm, and the surface roughness of contact-making surface is 0.3 ± 0.1 mm, and contact length is greater than 14mm.

2. LED according to claim 1 tunnel lamp is characterized in that: be provided with the pad (6) that can stop the spark unofficial biography between described lens (2) and the lamp body (1).

3. LED according to claim 2 tunnel lamp is characterized in that: described pad (6) is an elliptical ring, and material is a red copper, thick 2 ± 0.5mm, and the ring distance is greater than 14 ± 2mm.

4. LED according to claim 2 tunnel lamp; It is characterized in that: the joint between said lens (2) and the lamp body (1) is provided with flat head screw (7) and compressing tablet (8), and flat head screw (7) runs through compressing tablet (8) back embedding lamp body (1) lens (2) and pad (6) are pressed together.

5. LED according to claim 4 tunnel lamp is characterized in that: embedding place of flat head screw (7) also embedding epoxy resin is arranged.

6. LED according to claim 5 tunnel lamp is characterized in that: described lamp body (1) is provided with the housing pin (9) and the rubber ring (10) of attached cable line.

7. according to any described LED tunnel lamp among the claim 1-6, it is characterized in that: the arc surface of the outer ovalize of described lens, internal layer is two symmetrical refraction faces.

8. according to any described LED tunnel lamp among the claim 1-6, it is characterized in that: box of the described end (3) is provided with the link (11) of being convenient to install this tunnel lamp.

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