CN2449048Y - Miniature miner's lamp - Google Patents
Miniature miner's lamp Download PDFInfo
- Publication number
- CN2449048Y CN2449048Y CN 00256081 CN00256081U CN2449048Y CN 2449048 Y CN2449048 Y CN 2449048Y CN 00256081 CN00256081 CN 00256081 CN 00256081 U CN00256081 U CN 00256081U CN 2449048 Y CN2449048 Y CN 2449048Y
- Authority
- CN
- China
- Prior art keywords
- miner
- lamp
- miniature
- light
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 14
- 239000004065 semiconductor Substances 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000012946 outsourcing Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract description 4
- 239000003822 epoxy resin Substances 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920000647 polyepoxide Polymers 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 238000010892 electric spark Methods 0.000 description 5
- 210000001364 upper extremity Anatomy 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Images
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The miniature miner's lamp consists of lamp holder, rubber pad, accumulator set, casing, sealing gasket, screws, upper cover, intrinsically safe explosion-proof assembly and two-core cable. The accumulator set is composed of single batteries with high specific energy, which are connected in series, and is covered with insulating plastic cover and put into the casing. A bulb with 3.6 volts is arranged in the lamp holder. The intrinsic safety explosion-proof component adopted by the intrinsic safety circuit is formed by connecting a light-operated semiconductor element, a detection control module, a light-emitting diode and an electronic switch, and sealing the light-operated semiconductor element, the detection control module, the light-emitting diode and the electronic switch in a box body by epoxy resin to form an independent component which is arranged in a shell. When this ampere of miniature miner's lamp short circuit, there is not visual spark, perhaps the spark energy is less than 0.1mJ to can be in 0.1 millisecond cut-off circuit, be less than prior art's standard value. The illuminance and the service life are obviously higher than those of the miner's lamp in the prior art. Compared with the miner lamp in the prior art, the volume is reduced by 60 percent, and the weight is reduced by 58 percent.
Description
The utility model relates to lighting apparatus under the coal mine, relates in particular to miniature miner's lamp.
The mine lamp that lighting apparatus under the coal mine of prior art, especially coal miner are carried mainly is the short-circuit protector formula mine lamp of lead-acid accumulator type, has play a part certain for solving the colliery mine lighting.But because the short-circuit protector of mine lamp will produce higher induced potential when mine lamp contingency is short-circuited, spark energy is quite high, and the time of cutting off electric current is long, can not fundamentally eliminate unsafe hidden danger; The mine lamp volume of prior art is big besides, Heavy Weight, and illumination is low, and the life-span is short.
The purpose of this utility model is, overcome the deficiencies in the prior art part, provide a kind of electric spark that under short-circuit condition, is produced and fuel factor all can not light methane gas, and volume is little, in light weight, the illumination height, the life-span is long, there is not corrosion, non-maintaining colliery down-hole miner miniature miner's lamp.
Miniature miner's lamp described in the utility model, the batteries, lamp holder, rubber blanket, housing, sealing gasket, screw, loam cake, Sefe antiexplosion assembly and the two core cable on line that include high-energy-density are formed.Be provided with 3.6 volts bulb in the lamp holder.Two core cable on line, hanging part and the operating parts of miniature miner's lamp described in the utility model is identical with cable on line, hanging part and the operating parts of the mine lamp of prior art, can guarantee the uniformity on the operation technique.Said batteries is the cell that adopts high-energy-density, links together by series process, and cover is moulded in the outsourcing insulation, puts into housing.During the cell series connection, the form that is provided with that the positive pole of employing battery all makes progress.Said cell is the secondary cell of prior art.On the bottom surface in the housing, be provided with rubber blanket, the batteries through connecting is that said cell through tandem compound should be placed on the rubber blanket, to make the usefulness of vibration reduction and cushioning.The face shaping of miniature miner's lamp described in the utility model, basic identical with the mine lamp of prior art, but being significantly less than the mine lamp of prior art on the volume, its spatial volume narrows down to 700 to 750 cubic centimetres.In order to guarantee the positiver sealing of batteries in housing,, the sealing gasket that is provided with through impregnation is arranged at the upper limb of housing inner chamber.The Sefe antiexplosion assembly is arranged in the housing, there are three lead-in wires at the two ends of Sefe antiexplosion assembly, link with the two core cable on line that connects lamp holder with the positive and negative electrode of batteries respectively, at last loam cake is embedded the upper limb of housing, tighten together with screw.Said Sefe antiexplosion assembly is after connecting combination by light-operated semiconductor element, detection control module, light emitting diode and electronic switch,, to use as a stand-alone assembly in box body with epoxy sealing.At miniature miner's lamp circuit described in the utility model just often, after lamp holder switch LK closure, bulb is luminous.Here said lamp holder switch LK is identical with the lamp holder switch of prior art.When lamp holder switch LK was closed, control module C detected the impedance of external circuit greater than a definite value M, and electronic switch K is in off-state, and light emitting diode LD no current passes through, and light-operated semiconductor GS is in low resistive state, and batteries is incessantly to bulb powered.When the current supply circuit generation both positive and negative polarity direct short-circuit of miniature miner's lamp, control module C detects circuit impedance immediately and is significantly less than definite value M, immediately with electronic switch K closure, light emitting diode LD gets electroluminescence, at this moment, light-operated semiconductor element increases greatly at extremely short time internal resistance value, makes short circuit current level off to zero.In whole process, short circuit place does not have visual electric spark and produces, or the electric spark energy that is produced is lower than 0.1mJ, so can not light methane gas.After short circuit phenomenon was got rid of, control module C recorded circuit impedance again greater than definite value M, and then electronic switch K disconnects, and the resistance of light-operated semiconductor element GS returns to low resistive state again, and the circuit of miniature miner's lamp recovers normal power supply again.
Our experiments show that, during miniature miner's lamp short circuit described in the utility model, no visual spark, the spark energy that is taken place is lower than 0.1mJ in other words, and can in 0.1 millisecond, cut off circuit rapidly, assurance can not be lighted methane gas, is lower than the standard figures of prior art.Illuminance and service life are all apparently higher than the mine lamp of prior art.With the lead-acid accumulator of prior art is that the mine lamp of power supply is compared, and volume reduces 60%, weight saving 58%.Especially the intrinsicallysafecircuit that miniature miner's lamp described in the utility model adopts has guaranteed can not light methane gas, and is safe and reliable in the use.
Accompanying drawing 1 is the structural representation of miniature miner's lamp described in the utility model; Accompanying drawing 2 is circuit diagrams of miniature miner's lamp described in the utility model.1-lamp holder 2-rubber blanket 3-batteries 4-housing 5-sealing gasket 6-screw 7-loam cake 8-Sefe antiexplosion assembly
Referring now to accompanying drawing 1 and accompanying drawing 2, be described as follows in conjunction with the embodiments: miniature miner's lamp described in the utility model, the batteries 3, lamp holder 1, rubber blanket 2, housing 4, sealing gasket 5, screw 6, loam cake 7, Sefe antiexplosion assembly 8 and the two core cable on line that include high-energy-density are formed.Be provided with 3.6 volts bulb in the lamp holder 1.Two core cable on line, hanging part and the operating parts of miniature miner's lamp described in the utility model is identical with cable on line, hanging part and the operating parts of the mine lamp of prior art, can guarantee the uniformity on the operation technique.Said batteries 3 is the cells that adopt high-energy-density, links together by series process, and cover is moulded in the outsourcing insulation, puts into housing.During the cell series connection, the form that is provided with that the positive pole of employing battery all makes progress.Said cell is the secondary cell of prior art.On the bottom surface in the housing 4, be provided with rubber blanket 2, the batteries 3 through connecting is that said cell through series connection should be placed on the rubber blanket 2, to make the usefulness of vibration reduction and cushioning.The face shaping of miniature miner's lamp described in the utility model, basic identical with the mine lamp of prior art, but being significantly less than the mine lamp of prior art on the volume, its spatial volume narrows down to 700 to 750 cubic centimetres.In order to guarantee the positiver sealing of batteries 3 in housing 4,, the sealing gasket 5 that is provided with through impregnation is arranged at the upper limb of housing 4 inner chambers.Sefe antiexplosion assembly 8 is arranged in the cavity of sealing gasket 5 in the housing 4, three lead-in wires are arranged at the two ends of Sefe antiexplosion assembly 8, link with the two core cable on line that connects lamp holder 1 with the positive and negative electrode of batteries 3 respectively, at last loam cake 7 is embedded the upper limb of housing 4, tighten together with screw 6.Said Sefe antiexplosion assembly 8 is after connecting combination by light-operated semiconductor element, detection control module, light emitting diode and electronic switch,, to use as a stand-alone assembly in box body with epoxy sealing.At the circuit of miniature miner's lamp described in the utility model just often, after lamp holder switch LK closure, bulb is luminous.Here said lamp holder switch LK is identical with the lamp holder switch of prior art.When lamp holder switch LK was closed, control module C detected the impedance of external circuit greater than a definite value M, and electronic switch K is in off-state, and light emitting diode LD no current passes through, and light-operated semiconductor GS is in low resistive state, and batteries is incessantly to bulb powered.When the current supply circuit generation positive and negative electrode direct short-circuit of miniature miner's lamp, control module C detects circuit impedance immediately and is significantly less than definite value M, immediately with electronic switch K closure, light emitting diode LD gets electroluminescence, at this moment, light-operated semiconductor element increases greatly at extremely short time internal resistance value, makes short circuit current level off to zero.In whole process, short circuit place does not have visual electric spark and produces, and the electric spark energy that is perhaps produced is lower than 0.1mJ, so can not light methane gas.After short circuit phenomenon was got rid of, control module C recorded circuit impedance again greater than definite value M, and then electronic switch K disconnects, and the resistance of light-operated semiconductor element GS returns to low resistive state again, and the circuit of miniature miner's lamp recovers normal power supply again.
Claims (7)
1, a kind of miniature miner's lamp, including lamp holder (1), rubber blanket (2), batteries (3), housing (4), sealing gasket (5), screw (6), loam cake (7), Sefe antiexplosion assembly (8) and two core cable on line forms, cable on line, hanging part and the operating parts of described miniature miner's lamp is identical with cable on line, hanging part and the operating parts of the mine lamp of prior art, it is characterized in that the utility model is provided with by light-operated semiconductor element, detects the Sefe antiexplosion assembly (8) that control module, light emitting diode and electronic switch connection are combined into.
2, miniature miner's lamp according to claim 1, it is characterized in that said Sefe antiexplosion assembly (8), be after connecting combination by light-operated semiconductor element, detection control module, light emitting diode and electronic switch, in box body, form an independently assembly with epoxy sealing.
3, miniature miner's lamp according to claim 1 is characterized in that Sefe antiexplosion assembly (8) is arranged in the housing (4).
4, miniature miner's lamp according to claim 1 is characterized in that said batteries (3), is the cell that adopts high-energy-density, links together by series process, and cover is moulded in the outsourcing insulation, puts into housing (4).
5, miniature miner's lamp according to claim 1, when it is characterized in that the cell series connection, the form that is provided with that the positive pole of employing battery all makes progress.
6, miniature miner's lamp according to claim 1 is characterized in that disposing 3.6 volts bulb in the lamp holder (1).
7, miniature miner's lamp according to claim 1 is characterized in that spatial volume of the present utility model is 700 to 750 cubic centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00256081 CN2449048Y (en) | 2000-10-23 | 2000-10-23 | Miniature miner's lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00256081 CN2449048Y (en) | 2000-10-23 | 2000-10-23 | Miniature miner's lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2449048Y true CN2449048Y (en) | 2001-09-19 |
Family
ID=33612869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00256081 Expired - Fee Related CN2449048Y (en) | 2000-10-23 | 2000-10-23 | Miniature miner's lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2449048Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD951505S1 (en) | 2019-05-02 | 2022-05-10 | Milwaukee Electric Tool Corporation | Headlamp |
-
2000
- 2000-10-23 CN CN 00256081 patent/CN2449048Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD951505S1 (en) | 2019-05-02 | 2022-05-10 | Milwaukee Electric Tool Corporation | Headlamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |