EP3631292A1 - Explosionsgeschützte leuchte - Google Patents
Explosionsgeschützte leuchteInfo
- Publication number
- EP3631292A1 EP3631292A1 EP18726444.5A EP18726444A EP3631292A1 EP 3631292 A1 EP3631292 A1 EP 3631292A1 EP 18726444 A EP18726444 A EP 18726444A EP 3631292 A1 EP3631292 A1 EP 3631292A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- section
- interior
- filling material
- lamp according
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 39
- 239000011148 porous material Substances 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims description 30
- 239000000945 filler Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 5
- 239000004753 textile Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 description 8
- 238000004880 explosion Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 239000011491 glass wool Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011490 mineral wool Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012777 electrically insulating material Substances 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229940046549 textile allergenic extract Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F21V25/00—Safety devices structurally associated with lighting devices
- F21V25/12—Flameproof or explosion-proof arrangements
-
- 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
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/005—Sealing arrangements therefor
-
- 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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- 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
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
- F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
- F21V23/006—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate being distinct from the light source holder
-
- 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
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/04—Provision of filling media
-
- 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 invention is an exploded ⁇ protected LED lamp.
- the lamp housing includes electrical construction ⁇ parts for operating a lamp, which is under the cover at ⁇ sorted.
- the cover member is also pressure-tight gekap ⁇ rare, so that the lamp housing encloses a total of two separately encapsulated interiors.
- bulky filling parts are introduced, the free space remaining between the filling parts and located within the housing electrical components is limited to less than 3 liters.
- the filling parts consist in ⁇ example of foamed plastic.
- sand, quartz powder or glass beads can be used as filling parts.
- the filling of the housing with flues ⁇ fluids, which can have a cooling effect for the electrical components is suggested. Also in the cover filling parts may be present, for example, serve as a reflector carrier. Both the housing and the transparent cover ⁇ part can be made of plastic.
- the filling of a housing with free-flowing Mate ⁇ rial is known in the field of explosion protection as sand encapsulation.
- DE OS 36 175 70 describes the placement of printed circuit boards in a All-round lockable housing and its filling with electrically insulating sand or glass balls.
- porous or free-flowing material can serve to reduce pressure peaks when the gas mixture is ignited. However, this does not apply to the light-guiding part of a luminaire. There trapped gas volume can not be reduced by introducing filler, because this obstructs the light leakage or scatter light uncontrolled.
- the explosion-proof lamp according to the invention comprises a housing having a partition having partition wall which divides the interior of the housing into a first section and into a second section.
- Currency ⁇ end of the first section at least one light source, before ⁇ preferably includes a semiconductor light source and is free of filler material, the second section is provided with open-pored filling material.
- the explosion-proof lamp has in one embodiment a housing with a translucent portion and encloses an interior.
- a partition wall provided with at least one opening is arranged, which divides the interior of the housing into a first section and a second section.
- the first section adjoins the translucent section and contains at least one light source.
- the second section of the interior is provided with open-pore filling material.
- the partition wall carries the light source and preferably an electronic operating circuit is embedded in the filling material.
- the housing may be formed closed to the outside. Although it is in principle possible to provide the housing with Dru ⁇ ckentlastungsvoriquesen, such as flame-protection filters, the one or more of the surrounding connecting openings ver close ⁇ with the interior of the housing. However, it is preferable to form the housing closed without sol ⁇ che outwardly acting pressure relief devices, so that problems of moisture ingress ⁇ and the dust or dirt such pressure relief devices are eliminated.
- the housing is constructed of two housing parts, between which the partition is held.
- the partition preferably has at least one, preferably a plurality of openings of a total of such a large cross section, so that free passage of gas is possible.
- the filler material is preferably exclusively in the second Ab ⁇ section of the interior space but not in the first portion thereof disposed.
- a filter be arranged, though the gas passage made ⁇ light, the passage of filler material through the openings from the second portion into the first portion of the vehicle interior, in ⁇ prevented.
- a filter may be an open-pored fabric, for example in the form of one or more layers of a fluid material, a thin felt, egg ⁇ nes woven or knitted fabric to be.
- it can be provided as a filter, a porous body which is loosely arranged in the second portion of the interior of the partition or connected thereto. Neither the open-pored textile nor the open-pored body must be firmly connected to the partition wall. You can loose at the
- the second portion of the interior of the housing is preferably completely filled by the filler, so that there are no free gas volumes that could participate in an explosion. But it may also be sufficient to fill the second section of the interior only partially with filling material. Preferably, however, the second Ab ⁇ section of the interior is filled at least more than half, more preferably more than three quarters with filler.
- a free-flowing Fill material such as sand, glass beads, ceramic balls or the like, serve. Alternatively, glass wool, rock wool or other fibrous materials may be provided as filling material. In a partial filling of the second portion of the interior with filler this can be attached to the housing interior ⁇ wall.
- the partition may be formed as a printed circuit board, which carries the LED light source or a plurality of LED light sources.
- the partition wall if it is designed as a conductor ⁇ plate, be formed of an electrically insulating material that carries conductor tracks.
- the Lei ⁇ terplatte can also carry electronic components that can be arranged both in the first portion of the interior of the Ge ⁇ housing and in the second portion of the interior of the housing.
- the second portion of the interior of the housing accommodates an electronic circuit which can serve, for example, as an operating device for the LED (s) of the first housing section.
- Such an electronic circuit is preferably arranged on a separate circuit board, which is embedded in the Gumate ⁇ rial of the second portion of the interior.
- FIG. 3 shows a modified embodiment of a lamp according to the invention.
- a lamp 10 is illustrated, de ⁇ ren housing at least preferably consists of at least two Ge ⁇ housing parts 11, 12, which are held on not further illustrated connecting means to each other.
- Connecting means can be screws, bolts, rivets,
- the parting line 13 may be formed flat or otherwise shaped, for example in the form of a thread or the like formed, as shown, by a seal 14 in ⁇ example, in the form of an O-ring or gene anderweiti profile ring, a lip seal or the like, From sealed or formed due to their length and width as a flame ⁇ puncture- proof gap.
- the Gerissausetei 11, 12 may be formed of plastic, for example, the housing part 12 is preferably formed of a transpar ⁇ term plastic or has at least one transparent window.
- the housing part 11 may also be formed of a plastic, for example a un ⁇ transparent plastic or metal or a metal / plastic composite.
- the two housing parts 11, 12 enclose a nenraum in 15, which is divided by a partition 16 into a first portion 17 and a second portion 18, the first portion 17 of the interior 15 adjacent to denjeni gene housing part 12 which is formed transparent or has a light exit window.
- a zone 12 a of the housing part 12 is considered ⁇ the.
- In the section 17 of the interior 15 is a
- the one or more LED chip (s) 20 may be arranged directly or by means of an intermediate carrier on the partition wall 16, which is preferably between ⁇ tween the two housing parts 11, 12 is held.
- at least one of the two housing parts 11, 12 a seat 21 for receiving the annular edge of the partition 16, so that the partition 16 passes through the interior 15 over its entire cross-section.
- the partition wall 16 may be formed of metal or, as it is preferred, of an electrically insulating material. In the latter case, it can carry conductor tracks for the electrical supply of the LED chips 20. If necessary, 16 further electrical construction ⁇ elements can be arranged on the formed as a conductor ⁇ plate partition wall.
- the partition wall 16 includes at least one, preferably ⁇ several openings 22, 23, via which the two Ab ⁇ sections 17, 18 of the interior 15 communicate with each other.
- the openings 22, 23 are preferably grouped an LED chip 20 around the we ⁇ tendonss to permit rapid pressure equalization between the two portions 17, 18 of the interior 15th
- a filter 24 may be arranged, which may consist of a fine-pored material.
- This filter 24 may be formed by texti- les fleece, a fabric, a knitted fabric, a nonwoven fabric of minerali ⁇ -magnetic material, such as glass wool, rock wool or the like, a rigid porous plate or more rigid porous Ele ⁇ elements, a polymer formed from wires or threads sieve , as in- For example, a plastic sieve, a wire screen, a hole ⁇ plate, a grid or the like may be arranged.
- the mesh or opening size of this filter 24 is preferential as ⁇ so low that can not pass through the apertures 22, 23 and into the second portion 18 of the vehicle interior, in ⁇ 15 arranged particles.
- a filling material 29 instead of a free-flowing granular material, a cotton-like material ⁇ or otherwise interconnected porous material can be dispensed onto the filter 24th
- the second portion 18 of the interior 15 serves to receive an electrical or electronic circuit 25, which can serve as operating device for the light source ⁇ 19 and, for example, on a printed circuit board 26 arranged electronic components 27, 28 has ⁇ .
- the second portion 18 with a free-flowing filler 29 such as, Glasku ⁇ rules, sand or the like, filled.
- the particles of this free-flowing material are larger than the mesh size of the filter 24. Are the openings 22, 23 smaller than the size of the particles of the flowable material can be dispensed with the filter 24.
- the filter 24 can be omitted if the portion 18 of the interior 15 is filled instead of free-flowing material with another open-pored material such as, glass wool, rock wool or ⁇ same.
- the second portion 18 of the inner ⁇ space 15 may be completely or partially filled with such an open-pore material.
- an explosive gas mixture may be penetrated into the interior 15.
- Existing sources of ignition can be detected in particular by the light source 19, for example the LED or LEDs.
- Ignition of the gas mixture in the section 18 is, however, avoided by the filling of this section 18 with the filling material 29.
- the forming pressure can ⁇ wave through the apertures 22 enter the portion 18 of the interior 15 23 and expand into it.
- the pressure wave runs in the filling material 29, which prevents the Fort ⁇ planting of the explosion or at least reduces the pressure wave by absorption.
- the portion 18 of the interior space 15 thus acts as an expansion space for the explosion that took place in the section 17.
- the Ge ⁇ housing parts 11, 12 are formed relatively thin-walled without risk of bursting.
- the free volume of explosion in the housing 10 is drastically reduced.
- training pressure peaks are greatly reduced.
- the housing 10 is preferably formed closed as illustrated in Figure 1. Alternatively, however, may be provided on the housing part 11 and / or on the housing part 12, a pressure-discharge opening leading to the outside, which is provided with a porous gas-permeable flameproof filter as a pressure relief body. In most cases this is unnecessary.
- FIG 3 a modified embodiment of the lamp 10 is illustrated, which has two partitions 16a, 16b, which divide from the interior 15 two portions 18a, 18b, which are provided with porous, damping filling material 29a, 29b.
- the circuit board 26 may carry the light source 19 and / or the operating circuit 25, which is then arranged in the first section 17.
- the drive circuit 25 may Be ⁇ ⁇ in one of the sections 18a, 18b be integrally ⁇ arranged.
- the operating circuit can be 25a divides two circuits be housed in the two Abschnit ⁇ th 18a, 18b 25b.
- the circuit 25 as part of the operating circuit in the section 17 and additionally as a further circuit 25a, 25b as or circuit part 25a, 25b housed in the sections 18a and / or 18b.
- the lamp 10 has an inner ⁇ space 15 which is divided by a partition 16 into a first section 17 and a second portion 18, while the first portion is free of 17 and containing at least one light source are in the second Section 18 an operating circuit 25 for the light source 19 and / or other potential ignition sources forming components and / or other components not also considered as ignition sources are considered.
- the section 18 is provided with a fenfenigen ⁇ filling material.
- the partition 16 has at least one opening 22, which allows a Strömungsverbin ⁇ tion between the two sections 17, 18.
- the filling material 29 provided with portion 18 of the interior 15 serves as a pressure relief volume for the first section 17, in which the light source 19 is arranged.
- the filling material 29 may fill the section 18 in whole or in part.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL18726444T PL3631292T3 (pl) | 2017-06-01 | 2018-05-18 | Lampa chroniona przed wybuchem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017112146.3A DE102017112146A1 (de) | 2017-06-01 | 2017-06-01 | Explosionsgeschützte Leuchte |
PCT/EP2018/063150 WO2018219695A1 (de) | 2017-06-01 | 2018-05-18 | Explosionsgeschützte leuchte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3631292A1 true EP3631292A1 (de) | 2020-04-08 |
EP3631292B1 EP3631292B1 (de) | 2021-07-07 |
Family
ID=62222674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18726444.5A Active EP3631292B1 (de) | 2017-06-01 | 2018-05-18 | Explosionsgeschützte leuchte |
Country Status (7)
Country | Link |
---|---|
US (1) | US11371689B2 (de) |
EP (1) | EP3631292B1 (de) |
KR (1) | KR102500893B1 (de) |
DE (1) | DE102017112146A1 (de) |
ES (1) | ES2884025T3 (de) |
PL (1) | PL3631292T3 (de) |
WO (1) | WO2018219695A1 (de) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3617570C2 (de) | 1986-05-24 | 1994-09-29 | Mannesmann Kienzle Gmbh | Vorrichtung zur Betätigung von mehreren benachbarten Schaltern |
DE3634556A1 (de) | 1986-10-10 | 1988-04-14 | Ceag Licht & Strom | Explosions- oder schlagwettergeschuetzte leuchte mit druckfest gekapseltem leuchtengehaeuse und daran befestigtem transparentem abdeckteil |
DE10024427A1 (de) * | 2000-05-19 | 2001-12-20 | Stahl R Schaltgeraete Gmbh | Lichtquelle |
WO2010136920A1 (en) * | 2009-05-28 | 2010-12-02 | Koninklijke Philips Electronics N.V. | Illumination device with an envelope enclosing a light source |
NL2006013C2 (nl) | 2011-01-14 | 2012-07-17 | Nedap Nv | Verlichtingsarmatuur voor verlichting van omgevingen waar explosiegevaar kan bestaan. |
DE102012101411B4 (de) * | 2012-02-22 | 2016-02-18 | R.Stahl Schaltgeräte GmbH | Explosionsgeschützte Leuchte mit eingegossener Optik |
US20160084483A1 (en) * | 2014-09-22 | 2016-03-24 | GE Lighting Solutions, LLC | Electrically isolated and thermally radiated led module |
-
2017
- 2017-06-01 DE DE102017112146.3A patent/DE102017112146A1/de not_active Withdrawn
-
2018
- 2018-05-18 US US16/618,220 patent/US11371689B2/en active Active
- 2018-05-18 PL PL18726444T patent/PL3631292T3/pl unknown
- 2018-05-18 ES ES18726444T patent/ES2884025T3/es active Active
- 2018-05-18 EP EP18726444.5A patent/EP3631292B1/de active Active
- 2018-05-18 WO PCT/EP2018/063150 patent/WO2018219695A1/de active Application Filing
- 2018-05-18 KR KR1020197038500A patent/KR102500893B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR102500893B1 (ko) | 2023-02-20 |
US20200116343A1 (en) | 2020-04-16 |
DE102017112146A1 (de) | 2018-12-06 |
EP3631292B1 (de) | 2021-07-07 |
WO2018219695A1 (de) | 2018-12-06 |
US11371689B2 (en) | 2022-06-28 |
ES2884025T3 (es) | 2021-12-10 |
KR20200014826A (ko) | 2020-02-11 |
PL3631292T3 (pl) | 2021-11-22 |
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