CN201937930U

CN201937930U - Anti-explosion high-power light emitting diode (LED) roadway lamp for mine

Info

Publication number: CN201937930U
Application number: CN2011200633472U
Authority: CN
Inventors: 朱广宇; 翟建; 谭强
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-11
Filing date: 2011-03-11
Publication date: 2011-08-17
Anticipated expiration: 2021-03-11

Abstract

The utility model discloses an anti-explosion high-power light emitting diode (LED) roadway lamp for a mine, which comprises two parts: a mechanical part and an electric part, wherein the mechanical part comprises an anti-explosion aluminum case and an aluminum composite reflection plate, zener diodes are integrated and encapsulated in a control plate of the electric part and are arranged and embedded in the aluminum composite reflection plate in a dot array way, a system control plate comprises a rectifying and filtering circuit and a constant current source circuit, the constant current source circuit comprises an LM2734 integrated circuit, the anti-explosion aluminum case comprises a front end cover, a back end cover and a center casing, the center casing is positioned in the middle of the front end cover and the back end cover, and high-intensity ribs are arranged around the center casing. The visibility is high, the unit modularization is strong, and meanwhile, the aluminum case with the high-intensity shock-resistant ribs is adopted, the weight is light, and the anti-explosion high-power LED roadway lamp is easy to hang on a steel wire rope arranged on the top of the roadway and is convenient to use and maintain. The zener diodes are integrated and encapsulated in the high-power LED lamp, and the goals of maintenance convenience, low maintenance rate, installation convenience, economy and practicability are really realized, and the anti-explosion high-power LED roadway lamp is suitable for mine roadway illumination.

Description

Mine explosion-suppression great power LED tunnel lamp

Technical field

The utility model relates to a kind of mine explosion-suppression great power LED tunnel lamp.

Background technology

Incandescent lamp or fluorescent lamp are adopted in the illumination of coal mine roadway more, the shell cast iron structure of explosion-proof type.At present, although the development of LED cold light source, the coal mine roadway lamp also gradually adopts LED as light illumination, but the LED lamp of these tunnel lamps is a little less than small-power and the illumination, because its LED lamp of LED lighting device that uses is series connection or mixed connection circuit at present, in case certain LED lamp goes wrong, must influence the normal use of whole light source.

Summary of the invention

For the low visibility that overcomes known low-power LED lamp, unit-modularized weak defective, the utility model provides a kind of mine explosion-suppression great power LED tunnel lamp, this LED tunnel lamp has adopted great power LED as light source, and the inner integrated Zener diode that encapsulated of the luminescence chip of high-powered LED lamp, realized that single led light-emitting diode works alone and has non-maintaining function, the visibility height is unit-modularized strong.

The technical solution of the utility model is: this mine explosion-suppression great power LED tunnel lamp has machinery and electric two parts, wherein mechanical part comprises lampshade, the flame-proof type aluminum shell, the plastic-aluminum reflector, suspension ring, electric part comprises system control panel, integrated encapsulation Zener diode in the control board, and being the dot matrix arrangement is embedded in the plastic-aluminum reflector, system control panel comprises current rectifying and wave filtering circuit and constant-current source circuit, constant-current source circuit comprises LM2734 integrated circuit U1,5 pin of LM2734 integrated circuit U1, the positive polarity of 4 pin and current rectifying and wave filtering circuit is joined and is passed through capacity earth, be connected to electric capacity between 1 pin of LM2734 integrated circuit U1 and 6 pin, 1 pin of LM2734 integrated circuit connects the first voltage stabilizing didoe negative pole, 6 pin of integrated circuit connect inductance one end and the second voltage stabilizing didoe negative pole, the first voltage stabilizing didoe positive pole connects the inductance other end and passes through capacity earth, the positive pole of another termination of inductance LED lamp, the negative pole of LED lamp connects 1 pin of LM321 integrated circuit by resistance, 1 pin of LM321 integrated circuit U2 passes through grounding through resistance, 3 pin of LM2734 integrated circuit U1 pass through grounding through resistance, 3 pin of LM2734 integrated circuit U1 connect the negative pole of the 3rd voltage stabilizing didoe, the positive pole of the 3rd voltage stabilizing didoe connects 4 pin of LM321 integrated circuit U2 by resistance, be connected to electric capacity between 3 pin of LM321 integrated circuit U2 and 4 pin, 3 pin of LM321 integrated circuit are by grounding through resistance, and 2 pin of LM321 integrated circuit connect the voltage of voltage regulation positive pole of current rectifying and wave filtering circuit and pass through capacity earth.

The flame-proof type aluminum shell comprises front end housing, rear end cap and central housing, and central housing is positioned in the middle of front end housing and the rear end cap, and central housing adopts aluminium material matter, is provided with the high strength rib around the central housing.Central authorities' housing front end is that hermetically-sealed construction has through wires hole and screwed hole, and suspension ring is equipped with in the rear end, and forward and backward end cap is equipped with plastic seal ring, is spirally connected by hex bolts and central housing.The built-in rubber seal of thread guide devices front end and being threaded with central housing is spirally connected, and it is horn-like that the rear end is, the centre be 1/2 6 prismatic above by the button-headed screw tension disc that is spirally connected.Supporting plate is spirally connected by binding post and system control panel.

Advantage of the present utility model: the visibility height, unit-modularized have the aluminum shell of high-intensity antidetonation rib by force simultaneously, in light weight, easily hangs on the steel wire rope at top, tunnel convenient maintenance.High-powered LED lamp is interior integrated encapsulation Zener diode, really accomplish to maintain easily, maintenance rate is low, installation is light, economical and practical.

Description of drawings

Fig. 1 is current rectifying and wave filtering circuit figure of the present utility model.

Fig. 2 is constant-current source circuit figure of the present utility model.

Fig. 3 is the dot matrix Pareto diagram that is connected in series of the LED lamp among Fig. 2.

Fig. 4 is the structural representation of the utility model embodiment.

Among the figure: 1. front end housing, 2. sunk screw, 3.LED lamp, 4. lead, 5. through wires hole, 6. earthing screw, 7. power line, 8. button-headed screw, 9. system control panel, 10. pan head screw, 11 binding posts, 12. hex boltss, 13. rear end cap, 14. suspension rings, 15. plastic seal rings, 16. supporting plates, 17. electronic devices and components, 18. tension discs, 19. thread guide devices, 20 rubber seal, 21. central housings, 22 screwed holes, 23. plastic-aluminum reflectors, 24. lampshades.

Embodiment

In Fig. 1, current rectifying and wave filtering circuit comprises transformer L1, two rectifier bridges, integrated regulator, first rectifier output voltage VIN, and second rectifier bridge is by integrated regulator output voltage of voltage regulation VCC.

In Fig. 2, system control panel comprises current rectifying and wave filtering circuit and constant-current source circuit, constant-current source circuit comprises LM2734 integrated circuit U1,5 pin of LM2734 integrated circuit U1, the positive polarity VIN of 4 pin and current rectifying and wave filtering circuit joins and passes through capacitor C 6 ground connection, be connected to capacitor C 2 between 1 pin of LM2734 integrated circuit U1 and 6 pin, 1 pin of LM2734 integrated circuit U1 connects the first voltage stabilizing didoe D1 negative pole, 6 pin of LM2734 integrated circuit U1 connect inductance L 3 one ends and the second voltage stabilizing didoe D2 negative pole, the first voltage stabilizing didoe D1 positive pole connects inductance L 3 other ends and passes through capacitor C 8 ground connection, inductance L 3 another termination LED lamp LED1, the positive pole of LED2, the negative pole of LED lamp LED2 connects 1 pin of LM321 integrated circuit U2 by resistance R L, 1 pin of LM321 integrated circuit U2 is by resistance R sef ground connection, 3 pin of LM2734 integrated circuit U1 are by resistance R _ f b1 and Rfb2 ground connection, 3 pin of LM2734 integrated circuit U1 connect the negative pole of the 3rd voltage stabilizing didoe D3, the positive pole of the 3rd voltage stabilizing didoe D3 connects 4 pin of LM321 integrated circuit U2 by resistance R 1, be connected to capacitor C 9 between 3 pin of LM321 integrated circuit U2 and 4 pin, 3 pin of LM321 integrated circuit U2 are by resistance R _ f and resistance R _ f b2 ground connection, and 2 pin of LM321 integrated circuit U2 meet the anodal VCC of voltage of voltage regulation of current rectifying and wave filtering circuit and pass through capacitor C 10 ground connection.

In Fig. 3, high-powered LED lamp LED1, the LED2 among Fig. 1 is composed in series by four high-powered LED lamps.

In Fig. 4, this mine explosion-suppression great power LED tunnel lamp has machinery and electric two parts, and wherein mechanical part comprises lampshade 24, flame-proof type aluminum shell, plastic-aluminum reflector 23, suspension ring 14.The flame-proof type aluminum shell comprises front end housing 1, rear end cap 13 and central housing 21, and central housing 21 is positioned in the middle of front end housing 1 and the rear end cap 13, and central housing 21 adopts aluminium material matter, is provided with the high strength rib around the central housing 21.

Electric part comprises system control panel 9, integrated encapsulation Zener diodes in the system control panel 9, and be dot matrix and arrange and be embedded in the plastic-aluminum reflector 23.Supporting plate 16 is spirally connected by binding post 11 and system control panel 9, and system control panel 9 is made of printed circuit board and electronic devices and components 17, and supporting plate 16 is built in the central housing 21 by pan head screw 10.High-powered LED lamp 3 is the dot matrix arrangement and is embedded in the plastic-aluminum reflector 23, through wires hole 5 by central housing 21 is electrically connected with system control panel 9, plastic-aluminum reflector 23 is pasted front end at central housing 21 by fluid sealant, plastic-aluminum reflector 23 is spirally connected by sunk screw 2 and central housing 21, central authorities' housing built-in rubber seal 20 of 21 both sides thread guide devices, 19 front ends and being threaded with central housing 21 is spirally connected, it is horn-like that the rear end is, power line 7 is electrically connected with binding post 11 by thread guide devices 19 and plastic seal ring 15, tension disc 18 is pressed on power line 7 on 1/2 6 prismatic surfaces of thread guide devices 19 by button-headed screw 8, lampshade 24 is pasted front end at central housing 21 by fluid sealant, front end housing 1 is equipped with plastic seal ring 15 with rear end cap 15, be spirally connected by hex bolts 12 and central housing 21, the be spirally connected outside of central housing 21 of earthing screw 6, the suspension ring 14 of rear end cap 15 hangs on the steel wire rope at top, tunnel, and the mine explosion-suppression high-powered LED lamp can provide the illumination height after power line 7 energized, reliable and stable light source.

Power line 7 provides the AC power of 80-250V, and system control panel 9 provides operating current by current rectifying and wave filtering circuit and constant-current source circuit to the LED lamp.

Operation principle: realize that the peripheral power supply voltage range enlarges, the constant current power supply is constant.By light-source control system, peripheral input voltage range is improved, and it is constant to supply with the electric current of LED, utilizes integrated chip, resolution element combines, photoelectricity is isolated, linear output, thus constitute one complete, the high-efficiency LED drive system.In the led light source manufacture process, integrated every LED Zener diode in parallel of having installed is realized non-maintaining function in chip.

Claims

1. mine explosion-suppression great power LED tunnel lamp, this mine explosion-suppression great power LED tunnel lamp has machinery and electric two parts, wherein mechanical part comprises lampshade, the flame-proof type aluminum shell, the plastic-aluminum reflector, suspension ring, it is characterized in that electric part comprises system control panel, integrated encapsulation Zener diode in the control board, and being the dot matrix arrangement is embedded in the plastic-aluminum reflector, system control panel comprises current rectifying and wave filtering circuit and constant-current source circuit, constant-current source circuit comprises the LM2734 integrated circuit, 5 pin of LM2734 integrated circuit, the positive polarity of 4 pin and current rectifying and wave filtering circuit is joined and is passed through capacity earth, be connected to electric capacity between 1 pin of LM2734 integrated circuit and 6 pin, 1 pin of LM2734 integrated circuit connects the first voltage stabilizing didoe negative pole, 6 pin of integrated circuit connect inductance one end and the second voltage stabilizing didoe negative pole, the first voltage stabilizing didoe positive pole connects the inductance other end and passes through capacity earth, the positive pole of another termination of inductance LED lamp, the negative pole of LED lamp connects 1 pin of LM321 integrated circuit by resistance, 1 pin of LM321 integrated circuit passes through grounding through resistance, 3 pin of LM2734 integrated circuit pass through grounding through resistance, 3 pin of LM2734 integrated circuit connect the negative pole of the 3rd voltage stabilizing didoe, the positive pole of the 3rd voltage stabilizing didoe connects 4 pin of LM321 integrated circuit by resistance, be connected to electric capacity between 3 pin of LM321 integrated circuit and 4 pin, 3 pin of LM321 integrated circuit are by grounding through resistance, and 2 pin of LM321 integrated circuit connect the voltage of voltage regulation positive pole of current rectifying and wave filtering circuit and pass through capacity earth.

2. mine explosion-suppression great power LED according to claim 1 tunnel lamp is characterized in that the flame-proof type aluminum shell comprises front end housing, rear end cap and central housing, and central housing is positioned in the middle of front end housing and the rear end cap, is provided with the high strength rib around the central housing.