WO2006025757A1 - Miner’s cap lamp - Google Patents

Miner’s cap lamp Download PDF

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Publication number
WO2006025757A1
WO2006025757A1 PCT/RO2005/000007 RO2005000007W WO2006025757A1 WO 2006025757 A1 WO2006025757 A1 WO 2006025757A1 RO 2005000007 W RO2005000007 W RO 2005000007W WO 2006025757 A1 WO2006025757 A1 WO 2006025757A1
Authority
WO
WIPO (PCT)
Prior art keywords
lamp
battery
light source
leds
charging
Prior art date
Application number
PCT/RO2005/000007
Other languages
French (fr)
Inventor
Adrian Apostu
Clement Sebastian Birtolom
Miomir Perita Vlascici
Original Assignee
S.C. Electromax S.R.L.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by S.C. Electromax S.R.L. filed Critical S.C. Electromax S.R.L.
Publication of WO2006025757A1 publication Critical patent/WO2006025757A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/08—Electric lighting devices with self-contained electric batteries or cells characterised by means for in situ recharging of the batteries or cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/06—Electric lighting devices with self-contained electric batteries or cells with the light source coupled to the remainder of the device solely by cable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention refers to a cap lamp meant for individual portable lighting, especially used in mining activities.
  • One of the elements of an existing miner's cap lamp is a head placed on the user's helmet, the lighting source consisting of a group of low intensity LEDs, placed on a grid and powered by rechargeable battery.
  • a specialized electronic module is required for charging, leading to supplementary costs and lower reliability.
  • the problem solved by the present invention is the manufacture of a cap lamp providing: increased illumination, improved control upon operational voltage and charging, permanent lamp monitoring during charging by means of an external computer, no need for another specialized electronic module for charging and lamp status and battery charge signalling.
  • the cap lamp presented according to the present invention eliminates all the fore- mentioned disadvantages. It refers to using a IW LED as main light source, focused with a special plastic lens, providing low energy consumption and embedding the lamp controller and the charging controller in a single electronic module, both of them being driven by the same microcontroller.
  • the lamp advantages are as follows: According to the present invention, the lamp advantages are as follows:
  • the electronic module within the lamp head embeds both the light sources controller and the charging controller, permanently providing information on lamp status and battery charge level
  • the cap lamp is made up of (Drawing no. 1): lamp head element (A) connected by cable (C) to rechargeable battery (B).
  • the lamp head element is made up of (Drawing no. 2): head case (1) housing an electronic module (2) that controls one main light source (4) consisting in IW LED, focused by a plastic lens (6), and one secondary light source (5) consisting in 5 high-illumination LEDs (1 red + 1 green + 3 white).
  • the light sources are mounted on an aluminium support, the head case being enclosed by a frame (9) and a diffuser (7), sealed by a rubber gasket (8).
  • the head also includes a cable fitting device that seals the cable entrance by means of a gasket (14) and a nipple.
  • the secondary light source using 5 LEDs, also has the purpose of signalling the operation status of the lamp.
  • the electronic module (2) is made up of: a microcontroller (2.1) that commands a constant current source (2.2) supplying the main light source (4), respectively (2.2.1) for the supply of the secondary light source (5); a secondary constant current source (2.3) for charging the battery (B) from an external power source (D).
  • the external power source (D) provides possibility of simultaneous charging of several lamps placed in a charging rack (E).
  • the microcontroller (2.1) individually commands every of the 5 LEDs of the secondary light source and also reports data regarding lamp status to an external computer. By means of a push-button (10), the microcontroller is commanded to change the program phase.
  • the electronic module (2) also includes a protection block (2.4) that insures protection against the possibility of voltage extraction from battery charging terminals (11).
  • the software loaded into the microcontroller is designed to generate the following functions: a) Switching through operation phases in permanent cycle when the command button (10) is pressed, the cycle including the following phases: i. Lighting the main light source (4), ii. Lighting the secondary light source (5), iii. Cumulative lighting of light sources (4, 5), iv. Lighting the main light source (4) and signalling through secondary light source LEDs the battery (B) charge status, v. Complete shutdown of light sources (4, 5).
  • Lamp serial number an unique lamp identification number
  • i Possibility of complete lamp discharge when commanded by computer or manually. This is possible only when the lamp is placed in the charging rack. The discharge is achieved through lighting all the LEDs, both of the main (4) and secondary light source (5)- j.
  • k is an unique lamp identification number
  • Indication of battery charge status by means of lighting the five LEDs according to counter's position: when the battery is fully charged, all the 5 LEDs will be lit and, as the battery is discharged, at 80% - 4 LEDs will be lit, at 60% - 3 LEDs and so on. Supplementary signalling, by means of intermittent lighting of light sources (4, 5), is provided when battery is 80% discharged and, respectively, 99%, giving the user the possibility to switch the operation phase to a low consumption one, thus increasing autonomy.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Led Devices (AREA)

Abstract

The invention refers to an individual portable lamp, meant to be used in mining environment. According to the invention, the portable lamp is made up of lamp head element (A) connected by cable (C) to a power source element (B), where the lamp head element consists of: head case (1), electronic module (2), main light source (4) consisting in lens-focused 1 W LED (6) and one secondary light source (5) consisting in 5 high-illumination LEDs (1 red + green + 3 white) or, in to another construction type, in to a lens-focused 1 W LED. The electronic module, fitted with a microcontroller (2.1), provides the following functions: lamp light up/switch/turn off, charge procedure, voltage regulation at LEDs’ level and, when charging the battery, lamp protection, evidence of battery operation cycles, charge status and autonomy signalling, data reporting to a computer.

Description

MINER'S CAP LAMP
The present invention refers to a cap lamp meant for individual portable lighting, especially used in mining activities.
One of the elements of an existing miner's cap lamp is a head placed on the user's helmet, the lighting source consisting of a group of low intensity LEDs, placed on a grid and powered by rechargeable battery.
The disadvantages of such a lamp are as follows:
- low illumination (approx. 600 LUX)
- high energy consumption (approx. 65OmA)
- no control upon operational voltage for an individual light source, leading to a decrease in LEDs lifetime
- no possibility for signaling the battery charge level or eventual lamp malfunction
- no control upon charging, leading - in time - to battery damage
- no possibility for lamp charging monitoring, which brings difficulty into controlling the performance of a large number of lamps in a mine
- a specialized electronic module is required for charging, leading to supplementary costs and lower reliability.
The problem solved by the present invention is the manufacture of a cap lamp providing: increased illumination, improved control upon operational voltage and charging, permanent lamp monitoring during charging by means of an external computer, no need for another specialized electronic module for charging and lamp status and battery charge signalling.
The cap lamp presented according to the present invention eliminates all the fore- mentioned disadvantages. It refers to using a IW LED as main light source, focused with a special plastic lens, providing low energy consumption and embedding the lamp controller and the charging controller in a single electronic module, both of them being driven by the same microcontroller.
According to the present invention, the lamp advantages are as follows: According to the present invention, the lamp advantages are as follows:
- high illumination (over 1,600 Lux)
- improved focus, by means of using a special lens
- low energy consumption (approx. 350 mA)
- permanent lamp control by means of a microcontroller, so that maximum lifetime is insured both for battery and light sources
- data reporting using an external computer, permanently providing:
- information on number of charging cycles, precise identification of lamps placed in charging racks, lamp status
- command of lamp functions
- the electronic module within the lamp head embeds both the light sources controller and the charging controller, permanently providing information on lamp status and battery charge level
- charging rack cost is significantly decreased
- increased lamp reliability
- indication of battery charge and eventual lamp malfunctions by means of a 5 LEDs group that provides the secondary light source
Hereinafter, we provide one example for invention achievement, in relation to drawings no. 1, 2, 3, 4, 5, 6, 7 - representing as follows:
Drawing no. 1 - cap lamp, overview
Drawing no. 2 - lamp head element with components
Drawing no. 3 - assembled head, front view
Drawing no. 4 - assembled head (alternative)
Drawing no. 5 - overall electric chart for charging and data reporting
Drawing no. 6 - electric chart of lamp controller and charging controller within lamp head
Drawing no. 7 - block chart of lamp controller and charging controller within lamp head
According to the present invention, the cap lamp is made up of (Drawing no. 1): lamp head element (A) connected by cable (C) to rechargeable battery (B). The lamp head element is made up of (Drawing no. 2): head case (1) housing an electronic module (2) that controls one main light source (4) consisting in IW LED, focused by a plastic lens (6), and one secondary light source (5) consisting in 5 high-illumination LEDs (1 red + 1 green + 3 white). The light sources are mounted on an aluminium support, the head case being enclosed by a frame (9) and a diffuser (7), sealed by a rubber gasket (8). The head also includes a cable fitting device that seals the cable entrance by means of a gasket (14) and a nipple. The secondary light source, using 5 LEDs, also has the purpose of signalling the operation status of the lamp.
The electronic module (2) is made up of: a microcontroller (2.1) that commands a constant current source (2.2) supplying the main light source (4), respectively (2.2.1) for the supply of the secondary light source (5); a secondary constant current source (2.3) for charging the battery (B) from an external power source (D). The external power source (D) provides possibility of simultaneous charging of several lamps placed in a charging rack (E). The microcontroller (2.1) individually commands every of the 5 LEDs of the secondary light source and also reports data regarding lamp status to an external computer. By means of a push-button (10), the microcontroller is commanded to change the program phase. The electronic module (2) also includes a protection block (2.4) that insures protection against the possibility of voltage extraction from battery charging terminals (11).
The software loaded into the microcontroller is designed to generate the following functions: a) Switching through operation phases in permanent cycle when the command button (10) is pressed, the cycle including the following phases: i. Lighting the main light source (4), ii. Lighting the secondary light source (5), iii. Cumulative lighting of light sources (4, 5), iv. Lighting the main light source (4) and signalling through secondary light source LEDs the battery (B) charge status, v. Complete shutdown of light sources (4, 5). b) Individual voltage regulation for every light source (4, 5) c) Power supply cut-off from battery (B) of light sources (4, 5) when supply voltage exceeds normal values d) Power supply cut-off from light sources (4, 5) during charging e) Evidence of lamp operation period by means of a prime counter f) Evidence of total number of battery charge/discharge cycles and signalling after having reached the guaranteed number of battery cycles by means of a second counter g) Signalling (after having reached 30 normal charge/discharge cycles by means of a third counter) that a complete battery charge/discharge cycle is required in order to prevent the occurrence of memory phenomenon. h) Data reporting to an external computer by means of e terminal (13). The reported data provide information regarding:
1. position of the three counters recording the lamp operation time, total number of charge/discharge cycles and number of normal charge cycles
2. status of the lamp connected to charging rack (E):
- charging (signalled through RED LED of secondary light source (5))
- damaged protection block (signalled through intermittent lighting of RED and GREEN LEDs of secondary light source (5))
- over-discharged battery (signalled through intermittent lighting of RED LED)
- lamp in charging rack discharge stage (signalled through simultaneous intermittent lighting of RED and GREEN LEDs of the secondary light source (5))
3. Lamp serial number (an unique lamp identification number) i. Possibility of complete lamp discharge when commanded by computer or manually. This is possible only when the lamp is placed in the charging rack. The discharge is achieved through lighting all the LEDs, both of the main (4) and secondary light source (5)- j. Charging the battery from external power source (D). Charge is performed according to the position of the microcontroller's (2.1) prime counter, in reverse compared to discharge, until the counter reaches the maximum value corresponding to a charged battery. Then, the charging procedure continues using lower voltage for charge maintenance purposes. k. Indication of battery charge status by means of lighting the five LEDs according to counter's position: when the battery is fully charged, all the 5 LEDs will be lit and, as the battery is discharged, at 80% - 4 LEDs will be lit, at 60% - 3 LEDs and so on. Supplementary signalling, by means of intermittent lighting of light sources (4, 5), is provided when battery is 80% discharged and, respectively, 99%, giving the user the possibility to switch the operation phase to a low consumption one, thus increasing autonomy.
1. Light sources cut-off when exhausting lamp autonomy to 100%.

Claims

1. Cap lamp made up of lamp head element (A) connected by cable (C) to rechargeable battery (B), defined by the fact that the lamp head element (A) is made up of:
- one main light source (4) consisting in IW LED, focused by a plastic lens (6),
- one secondary light source (5), also having the purpose of signalling the operation status of the lamp, consisting in 5 high-illumination LEDs and
- one electronic module (2) consisting in a microcontroller (2.1), a protection block (2.4) that insures protection against the possibility of voltage extraction from battery (B) charging terminals (11), 5 operation modes being established by means of microcontroller software that can be switched using a button (10) placed on one microcontroller's entrance and one charging mode that automatically sets in when connecting the lamp to a charging rack powered from en external source (D), the microcontroller commanding a constant current source (2.2) containing a reference source (2.5), for powering the battery (B) main source (4), a second constant current source (2.3) for charging the battery from an external power source (D), the microcontroller also individually commanding every of the 5 LEDs of the secondary light source (5), reporting data regarding lamp status to an external computer.
2. Lamp in compliance with Claim no. 1, defined by the fact that, in normal operation, when keeping the button (10) pressed, the following operation modes are switched through in a 5 -phases permanent cycle, until the button has been released: i. Lighting the main light source (4), ii. Lighting the secondary light source (5), iii. Cumulative lighting of light sources (4, 5), iv. Lighting the main light source (4) and signalling through secondary light source LEDs the battery (B) charge status, v. Complete shutdown of light sources (4, 5).
3. Lamp in compliance with Claim no. 1, defined by the fact that, in normal operation, the microcontroller command the power supply cut-off from battery (B) of light sources (4, 5) when supply voltage exceeds normal values
4. Lamp in compliance with Claims no. 1 and 2, defined by the fact that the microcontroller, by means of embedded software, generates the following functions: a. Evidence of lamp operation period by means of a prime counter b. Evidence of total number of battery charge/discharge cycles and signalling after having reached the guaranteed number of battery cycles by means of a second counter c. Signalling (after having reached 30 normal charge/discharge cycles by means of a third counter) that a complete battery charge/discharge cycle is required in order to prevent the occurrence of memory phenomenon. d. Data reporting to an external computer by means of e terminal (13). The reported data provide information regarding:
1. position of the three counters recording the lamp operation time, total number of charge/discharge cycles and number of normal charge cycles
2. status of the lamp connected to charging rack (E):
- charging (signalled through RED LED of secondary light source (5))
- damaged protection block (signalled through intermittent lighting of RED and GREEN LEDs of secondary light source (5))
- over-discharged battery (signalled through intermittent lighting of RED LED)
- lamp in charging rack discharge stage (signalled through simultaneous intermittent lighting of RED and GREEN LEDs of the secondary light source (5))
3. Lamp serial number (an unique lamp identification number) e. Possibility of complete lamp discharge when commanded by computer or manually. This is possible only when the lamp is placed in the charging rack. The discharge is achieved through lighting all the LEDs5 both of the main (4) and secondary light source (5). f. Charging the battery from external power source (D). Charge is performed according to the position of the microcontroller's (2.1) prime counter, in reverse compared to discharge, until the counter reaches the maximum value corresponding to a charged battery. Then, the charging procedure continues using lower voltage for charge maintenance purposes. g. Indication of battery charge status by means of lighting the five LEDs according to counter's position: when the battery is fully charged, all the 5 LEDs will be lit and, as the battery is discharged, at 80% - 4 LEDs will be lit, at 60% - 3 LEDs and so on. Supplementary signalling, by means of intermittent lighting of light sources (4, 5), is provided when battery is 80% discharged and, respectively, 99%, giving the user the possibility to switch the operation phase to a low consumption one, thus increasing autonomy. h. Light sources cut-off when exhausting lamp autonomy to 100%.
5. Lamp in compliance with Claims no. 1, 2 and 3, defined by the fact that, in an alternative product version, the secondary light source (5) is made up of one single IW LED, focused by a plastic lens, similar to the main light source (4), the difference being that the beam light resulted from focusing is less concentrated in this version, thus being suitable for short-distance operation.
PCT/RO2005/000007 2004-08-31 2005-07-11 Miner’s cap lamp WO2006025757A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ROA200400751 2004-08-31
ROA200400751A RO120863B1 (en) 2004-08-31 2004-08-31 Head lamp for mining

Publications (1)

Publication Number Publication Date
WO2006025757A1 true WO2006025757A1 (en) 2006-03-09

Family

ID=34973148

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RO2005/000007 WO2006025757A1 (en) 2004-08-31 2005-07-11 Miner’s cap lamp

Country Status (2)

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RO (1) RO120863B1 (en)
WO (1) WO2006025757A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1900995A1 (en) * 2006-09-13 2008-03-19 Marco Kiessler Miner's lamp and method for manufacturing a miner's lamp
CN100445632C (en) * 2006-04-27 2008-12-24 张胜利 Mining lamp with flasher
WO2011089375A1 (en) * 2009-12-22 2011-07-28 Ritelite Systems Ltd An led lighting apparatus with a battery monitoring device
EP2390554A2 (en) * 2007-05-29 2011-11-30 Koehler-Bright Star, Inc. Module adapter for portable light sources
CN102506306A (en) * 2011-09-30 2012-06-20 宁波市柯玛士太阳能科技有限公司 Head lamp
US8729851B2 (en) 2007-01-12 2014-05-20 Koehler-Bright Star, Inc. Battery pack for miner's cap lamp with charging and discharging control module

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458697A (en) * 1967-03-09 1969-07-29 Koehler Mfg Co Safety lighting equipment
AU544526B2 (en) * 1981-11-12 1985-06-06 Koehler Manufacturing Co. Portable lamp with emergency switching
EP1069370A1 (en) * 1998-04-08 2001-01-17 Suministros Adaro, S.A. Rechargable security intelligent torch
US20030086257A1 (en) * 2000-12-28 2003-05-08 Lehrer Robert A. Portable reading light device
WO2004084664A2 (en) * 2003-03-28 2004-10-07 Med-Eng Systems Inc. Head protector
GB2404972A (en) * 2003-08-15 2005-02-16 Gvr Products Ltd Head-mounted medical lamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458697A (en) * 1967-03-09 1969-07-29 Koehler Mfg Co Safety lighting equipment
AU544526B2 (en) * 1981-11-12 1985-06-06 Koehler Manufacturing Co. Portable lamp with emergency switching
EP1069370A1 (en) * 1998-04-08 2001-01-17 Suministros Adaro, S.A. Rechargable security intelligent torch
US20030086257A1 (en) * 2000-12-28 2003-05-08 Lehrer Robert A. Portable reading light device
WO2004084664A2 (en) * 2003-03-28 2004-10-07 Med-Eng Systems Inc. Head protector
GB2404972A (en) * 2003-08-15 2005-02-16 Gvr Products Ltd Head-mounted medical lamp

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100445632C (en) * 2006-04-27 2008-12-24 张胜利 Mining lamp with flasher
EP1900995A1 (en) * 2006-09-13 2008-03-19 Marco Kiessler Miner's lamp and method for manufacturing a miner's lamp
US8729851B2 (en) 2007-01-12 2014-05-20 Koehler-Bright Star, Inc. Battery pack for miner's cap lamp with charging and discharging control module
US8922159B2 (en) 2007-01-12 2014-12-30 Koehler-Bright Star, Inc. Battery pack for powering miner's cap lamp
US9362762B2 (en) 2007-01-12 2016-06-07 Koehler-Bright Star LLC Battery pack and cap lamp system
EP2390554A2 (en) * 2007-05-29 2011-11-30 Koehler-Bright Star, Inc. Module adapter for portable light sources
EP2390554A3 (en) * 2007-05-29 2017-03-29 Koehler-Bright Star, Inc. Module adapter for portable light sources
WO2011089375A1 (en) * 2009-12-22 2011-07-28 Ritelite Systems Ltd An led lighting apparatus with a battery monitoring device
CN102506306A (en) * 2011-09-30 2012-06-20 宁波市柯玛士太阳能科技有限公司 Head lamp

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