CN203478003U - Explosion-proof LED (Light Emitting Diode) sight glass lamp with time delay extinguishing function - Google Patents
Explosion-proof LED (Light Emitting Diode) sight glass lamp with time delay extinguishing function Download PDFInfo
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- CN203478003U CN203478003U CN201320411670.3U CN201320411670U CN203478003U CN 203478003 U CN203478003 U CN 203478003U CN 201320411670 U CN201320411670 U CN 201320411670U CN 203478003 U CN203478003 U CN 203478003U
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- explosion
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Abstract
The utility model relates to an explosion-proof LED (Light Emitting Diode) sight glass lamp with a time delay extinguishing function, which overcomes the defects of the original explosion-proof filament lamp sight glass lamp. The explosion-proof LED sight glass lamp is provided with a metal shell, the interior of the metal shell is provided with a power supply circuit board and an LED light source circuit board, and a plurality of LEDs are arranged on the light source circuit board; an explosion-proof normally-open button switch is arranged on the shell (3), a glass sheet is arranged at the front end of the shell, and the outer side of the shell is provided with a seal ring; the foremost end of the shell (3) is provided with a gland for locking the glass sheet; an explosion-proof leading-in box is arranged at the rear end of the shell, and an electric cable is led in from the explosion-proof leading-in box; led alternating current 36V provides power for the lamp after commutating and voltage stabilizing; after the button switch on the lamp is pressed once, an LED light source group is lightened; after time delay for a period of time, the LED light source group is automatically extinguished. The lamp has the characteristics of low energy consumption, low temperature rise, high shock resistance and no maintenance.
Description
Technical field
The utility model belongs to pharmaceutical manufacturing field, relates to particularly the explosion-proof visor lamp of a kind of LED with delay-action function.
Background technology
The explosion-proof visor lamp overwhelming majority who is used at present on the equipment such as chemical reaction kettle, centrifugal separator selects 36 volt-amperes of full voltages, and its light source is all incandescent lamp bulb.And this visor lamp is without gauge tap, while using in inflammable and explosive environment, also needs other pipe arrangement, distribution, installs flame-proof switch additional.When operating personnel use, often forget and turn-off visor lamp, cause light fixture to work long hours, make lamp casing temperature rise high, this is a great potential safety hazard still not, and easily burns bulb, lamp socket.
Summary of the invention
The purpose of this utility model is to overcome defect of the prior art, and the explosion-proof visor lamp of a kind of LED with delay-action function is provided.
For achieving the above object, the technical scheme that the utility model adopts is achieved in that
The explosion-proof visor lamp of a kind of LED with delay-action function is provided, it is characterized in that: have a metal shell, power supply circuit board, LED light source circuit board and LED light source are equipped with in portion within it, explosion-proof normal off press button is housed on housing, housing front end is equipped with sheet glass, sealing ring, the gland that locking glass sheet is housed foremost of housing are equipped with in outside.Explosion-proof leading-in box is equipped with in the rear end of housing.
The explosion-proof visor lamp of LED as above, is characterized in that: plurality of LEDs light source is housed on light source circuit board.
The explosion-proof visor lamp of LED as above, is characterized in that: anti-explosion cable is introduced by explosion-proof leading-in box.
The explosion-proof visor lamp of LED as above, is characterized in that: the interchange 36V of introducing after rectifying and voltage-stabilizing after, to light fixture, provide power supply.
The explosion-proof visor lamp of LED as above, is characterized in that: after the press button clicking on light fixture, LED light source group is lit.After time delay after a while, LED light source group automatic distinguishing.
Compare with the original explosion-proof visor lamp of incandescent lamp, the utility model has adopted LED cold light source, and the function automatically shutting down with time delay, and lamp casing is substantially without temperature rise, thereby eliminated the safety that original explosion-proof visor lamp high temperature housing brings, easily suffers from.
That explosion-proof its bulb of visor lamp of incandescent lamp is originally in is airtight, in the lamp housing of high temperature, bulb is original just very easily to be damaged.If while being used on the equipment that centrifugal separator and so on shock momentum is very large, bulb more easily damages.The utility model, owing to having adopted LED light source, has greatly improved the anti-seismic performance of light fixture.
Because the present invention has adopted LED light source, explosion-proof visor lamp can be done smaller and more exquisitely, therefore uses, installs convenient.And have that energy consumption is low, the advantage such as long service life, maintenance cost are few.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is electric theory diagrams of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described:
Structure of the present utility model is shown in Fig. 1, and the present invention has one with the housing 3 of metal casting, and power supply circuit board 4 and LED light source circuit board 6 are equipped with in portion within it, and plurality of LEDs light source 7 is housed on light source circuit board 6.Explosion-proof normal off press button 5 is housed on housing 3, at the front end of housing 3, implosion guard light transmission piece 9 is housed, the sealing ring 10 that flexible material is made is equipped with in the outside of light transmission piece 9.The gland 8 of the metal casting that locking light transmission piece 9 is housed foremost of housing 3.The explosion-proof leading-in box 2 of metal casting is housed in the rear end of housing 3, and anti-explosion cable 1 is introduced thus.
Electric principle of the present utility model is shown in Fig. 2, the interchange 36V safety low-voltage of introducing after rectifying and voltage-stabilizing after, give on the one hand and light and time delayed turn-off circuit provides power supply, also to LED light source, drive loop power supply simultaneously.After the press button clicking on light fixture, to light and time delayed turn-off loop drives loop to send the signal of turning on light to LED light source, LED light source drive circuit provides galvanic current source to LED light source group, and LED light source group is lit.After time delay after a while, to light and time delayed turn-off circuit sends cut-off signals, LED light source drive circuit stops to the power supply of LED light source group, and LED light source group is extinguished.
Provided detailed embodiment of the present utility model above, apparent, those skilled in the art, under prerequisite of the present utility model, can carry out part modifications and changes; The content of mentioning in description above and accompanying drawing, only as illustrative case, is not to restriction of the present utility model; The explosion-proof visor lamp of LED with delay-action function with technical characterictic described herein, all falls into this patent protection domain.
Claims (4)
1. the explosion-proof visor lamp of the LED with delay-action function, it is characterized in that: have a metal shell, power supply circuit board, LED light source circuit board and LED light source are equipped with in portion within it, explosion-proof normal off press button is housed on housing, housing front end is equipped with sheet glass, sealing ring is equipped with in outside, the gland that locking glass sheet is housed foremost of housing, and explosion-proof leading-in box is equipped with in the rear end of housing; After the press button clicking on light fixture, LED light source group is lit, after time delay after a while, and LED light source group automatic distinguishing.
2. the explosion-proof visor lamp of LED as claimed in claim 1, is characterized in that: plurality of LEDs light source is housed on light source circuit board.
3. the explosion-proof visor lamp of LED as claimed in claim 1, is characterized in that: anti-explosion cable is introduced by explosion-proof leading-in box.
4. the explosion-proof visor lamp of LED as claimed in claim 1, is characterized in that: the interchange 36V of introducing after rectifying and voltage-stabilizing after, to light fixture, provide power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411670.3U CN203478003U (en) | 2013-07-11 | 2013-07-11 | Explosion-proof LED (Light Emitting Diode) sight glass lamp with time delay extinguishing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411670.3U CN203478003U (en) | 2013-07-11 | 2013-07-11 | Explosion-proof LED (Light Emitting Diode) sight glass lamp with time delay extinguishing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203478003U true CN203478003U (en) | 2014-03-12 |
Family
ID=50226329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320411670.3U Expired - Lifetime CN203478003U (en) | 2013-07-11 | 2013-07-11 | Explosion-proof LED (Light Emitting Diode) sight glass lamp with time delay extinguishing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203478003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848087A (en) * | 2015-05-07 | 2015-08-19 | 袁静 | Touch type small night lamp |
-
2013
- 2013-07-11 CN CN201320411670.3U patent/CN203478003U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848087A (en) * | 2015-05-07 | 2015-08-19 | 袁静 | Touch type small night lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |