CN104180207A - Explosion-proof lamp structure - Google Patents
Explosion-proof lamp structure Download PDFInfo
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- CN104180207A CN104180207A CN201310199014.6A CN201310199014A CN104180207A CN 104180207 A CN104180207 A CN 104180207A CN 201310199014 A CN201310199014 A CN 201310199014A CN 104180207 A CN104180207 A CN 104180207A
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- explosion
- proof lamp
- light source
- lamp structure
- head end
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses an explosion-proof lamp structure. The explosion-proof lamp structure comprises a front shell, a pressing ring, a transparent cover and a light source, wherein the front shell comprises a main shell, a light source mounting part and a lug boss; the light source mounting part is of a hollow circular truncated cone structure and comprises a first big head end and a first small head end; the first big head end is opened; the first small head end is closed and is opposite to the first big head end; the first big head end is connected to the inner periphery of one end of the main shell; the lug boss is formed by outwards protruding the outer periphery of the first opening end; internal threads are formed on the inner periphery of the lug boss; the light source mounting part is integrally molded with the main shell and the lug boss; the transparent cover is fixed to the front shell through the pressing ring; the transparent cover and the front shell enclose to form a light source cavity together; the light source is accommodated in the light source cavity and is arranged on the outer side surface of the light source mounting part; heat emitted from the light source is transferred to the main shell through the light source mounting part and is diffused outwards by the main shell. The explosion-proof lamp structure is relatively high in radiation effect and is relatively high in reliability.
Description
Technical field
The present invention relates to lighting engineering, particularly relate to a kind of explosion-proof lamp structure.
Background technology
Light fixture, refers to energy printing opacity, distribution and the photodistributed utensil of change light source, comprises and except light source, is useful on the fixing and required whole parts and components of protection light source, and be connected necessary circuit annex with power supply.Explosion-proof lamp (explosion-proof lamp) is a kind of in many light fixtures, has explosion-proof performance, mainly contains explosion-proof lamp, explosion-proofing safe light fixture, mobile model explosion-proof lamp etc.
For traditional explosion-proof lamp, because it often works under hot environment, therefore require light fixture to there is good thermal diffusivity.Yet for traditional explosion-proof lamp, owing to will meeting the demand of its sealing, often structure is comparatively complicated for it, light source cannot directly dispel the heat to external world, and then light source is worked for a long time under hot environment, and its working life reduces greatly.
Summary of the invention
Based on this, be necessary to provide a kind of explosion-proof lamp structure of good heat dispersion performance.
An explosion-proof lamp structure, comprising:
Fore shell, is made by Heat Conduction Material, and described fore shell comprises:
Main casing, is the tubular structure of both ends open, comprises the first openend, is provided with spaced reciprocally a plurality of fin on the lateral wall of described main casing;
Light resource installing section, round table-like structure for hollow, comprise the first head end of opening and the first little head end of the sealing relative with described first head end, described first head end is connected on the inner peripheral of described main casing one end, and described light resource installing section is by described the first openend sealing; And
Boss, openend outer peripheral edges are outwardly forms by described first, and described boss is ring-type, and its cross section is " L " character form structure, on described boss inner peripheral, offers internal thread, and described light resource installing section and described main casing and described boss are one-body molded;
Trim ring, it has relative inner surface and outer surface, and the outer surface of described trim ring is provided with external screw thread, the inner surface of described trim ring is provided with protuberance, described protuberance is circulus, and described boss is sheathed on outside described trim ring, and the external screw thread of described trim ring and the internal thread of described boss are screwed;
Translucent cover, comprise the second openend, the second openend of translucent cover is provided with flanging, the periphery of described flanging and the inner surface of described trim ring are bonding, and described flanging and described protuberance offset, so that described translucent cover is fixed on described fore shell by described trim ring, described translucent cover and described fore shell surround light-source chamber jointly; And
Light source, is contained in described light-source chamber, and is arranged on the lateral surface of described light resource installing section, and the heat that described light source sends is passed to described main casing through described light resource installing section, and is externally dispersed by described main casing.
Therein in an embodiment, on the outer surface of described trim ring, also offer annular seal groove, described explosion-proof lamp also comprises sealing ring, and described sealing ring is arranged in described annular seal groove, and described sealing ring is by described trim ring and the sealing of the described fore shell place of screwing togather.
In an embodiment, described light source comprises a plurality of LED lamps and substrate therein, and described a plurality of LED interval is packaged on described substrate, and the lateral surface of described substrate and described light resource installing section fits.
In an embodiment, the lateral surface of described light resource installing section is comprised of multistage strip plane therein, and described substrate and described strip plane fit.
In an embodiment, the two ends of described strip plane are respectively equipped with two projections therein, and described substrate is limited between described two projections.
In an embodiment, described main casing also comprises three openend relative with described the first openend therein; Described explosion-proof lamp structure also comprises back cover, described back cover is the box like structure of an end opening, described back cover closure is in described the 3rd openend, and described back cover and described fore shell surround electric chamber jointly, and described light resource installing section is separated described electric chamber and described light-source chamber.
In an embodiment, also comprise driven unit therein, described driven unit is fixed in described electric chamber, and is electrically connected to described light source, and described driven unit comprises metal shell and is packaged in the electronics silica gel in described metal shell.
In an embodiment, on the first openend of described main casing, also offer axial wire guide therein, described wire guide is conducted described electric chamber and described light-source chamber; Described explosion-proof lamp structure also comprises seal nipple and wire, described seal nipple is arranged in described wire guide, and described wire guide is covered, described wire wears described wire guide by described seal nipple, describedly by driven unit, by described wire, is electrically connected to described light source.
Therein in an embodiment, also comprise reflector, described reflector comprises round table-like main body and kink, described main body comprises the second largest head end of opening and the second little head end relative with described second largest head end, described main body is sheathed on outside described light resource installing section, on the sidewall of described main body, offer through hole, described light source is through described through hole and be positioned at described main body outside, described kink is extended and is bent to form by the outer peripheral edges sidewall of described second largest head end, forms the angle that is less than 90 degree between described kink and the sidewall of described main body.
Therein in an embodiment, the outwardly formation hemisphere face of the second little head end of described reflector.
Above-mentioned explosion-proof lamp structure is compared with traditional explosion-proof lamp structure, at least has the following advantages:
First, the fore shell of the above-mentioned explosion-proof lamp structure structure that is formed in one, and made by Heat Conduction Material.Light source is arranged in the light resource installing section of fore shell, and the heat producing during its work is passed to main casing through light resource installing section, and is externally dispersed by main casing, and the heat-sinking capability of its whole explosion-proof lamp structure is stronger.
Meanwhile, distribution of light sources is on the lateral surface of round table-like light resource installing section, and through reflector reflection, its light sending can be dispersed to surrounding uniformly, has improved and uniformity of light.
In addition, above-mentioned explosion-proof lamp structure adopts the multiple type of explosion proof construc tion such as flame proof, encapsulation combined, has good reliability, and security is higher, and the life-span is more permanent.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the explosion-proof lamp structure in preferred embodiment of the present invention;
Fig. 2 is the concrete structure figure of explosion-proof lamp structure shown in Fig. 1;
Fig. 3 is the partial enlarged drawing at A place in explosion-proof lamp structure shown in Fig. 1;
Fig. 4 is the partial enlarged drawing at B place in explosion-proof lamp structure shown in Fig. 1;
Fig. 5 is the cutaway view of another angle of explosion-proof lamp structure shown in Fig. 1.
The specific embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.In accompanying drawing, provided better embodiment of the present invention.But the present invention can realize in many different forms, be not limited to embodiment described herein.On the contrary, providing the object of these embodiments is make the disclosure of the present invention understand more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, can directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may have centering elements simultaneously.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement just for illustrative purposes, do not represent it is unique embodiment.
Unless otherwise defined, all technology of using are herein identical with the implication that belongs to the common understanding of those skilled in the art of the present invention with scientific terminology.The term using in description of the present invention herein, just in order to describe the object of concrete embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
Refer to Fig. 1, the explosion-proof lamp structure 100 in preferred embodiment of the present invention, comprises fore shell 110, trim ring 120, sealing ring 130, translucent cover 140, light source 150, reflector 160, back cover 170, driven unit 180, seal nipple 190a and wire 190b.
Fore shell 110 is made by Heat Conduction Material.Fore shell 110 comprises main casing 112, light resource installing section 114 and boss 116.The tubular structure that main casing 112 is both ends open.Main casing 112 comprises the first openend 112a and the three openend 112b relative with the first openend 112a.See also Fig. 2, on the lateral wall of main casing 112, be provided with spaced reciprocally a plurality of fin 112c, to improve the heat-sinking capability of main casing 112.
The round table-like structure that light resource installing section 114 is hollow.Light resource installing section 114 comprises that the first head end 114a of opening and the first microcephaly of the sealing relative with first head end 114a hold 114b.First head end 114a is connected on the inner peripheral of main casing 112 one end, and light resource installing section 114 is sealed the first openend 112a.The lateral surface of light resource installing section 114 is comprised of multistage strip plane.
Boss 116 is by outwardly formation of the first openend 112a outer peripheral edges.Boss 116 is ring-type, and its cross section is " L " character form structure.On boss 116 inner peripherals, offer internal thread.
Specifically in the present embodiment, fore shell 110 is aluminum alloy die casting, and it has good thermal conductivity and intensity, and quality is also lighter simultaneously.Light resource installing section 114 is one-body molded with main casing 112 and boss 116, heat is conducted on fore shell 110 easier.Be appreciated that fore shell 110 also can be made by other Heat Conduction Material, be not limited to aluminum alloy materials.
See also Fig. 3, trim ring 120 has relative inner surface 122 and outer surface 124.The outer surface 124 of trim ring 120 is provided with external screw thread.Boss 116 is sheathed on outside trim ring 120, and the internal thread on the external screw thread of trim ring 120 and boss 116 is screwed.The inner surface 122 of trim ring 120 is provided with protuberance 122a, and protuberance 122a is circulus.Protuberance 122a is that the cross section that makes trim ring 120 is " L " character form structure in the end of the inner surface 122 of trim ring 120.In other embodiments, protuberance 122a also can be arranged at the middle part of the inner surface 122 of trim ring 120, and the cross section that makes trim ring 120 is " T " character form structure.
On the outer surface 124 of trim ring 120, also offer annular seal groove 124a.Sealing ring 130 is arranged in annular seal groove 124a.Sealing ring 130 is the place's of the screwing togather sealing with fore shell 110 by trim ring 120, forms threaded flame-proof type structure, has met the requirement of explosion-proof lamp.
The cross section of translucent cover 140 is parabola shaped.Translucent cover 140 comprises the second openend (figure is mark not), and the second openend is provided with flanging 142.Flanging 142 is circulus.The periphery of flanging 142 is bonding by the inner surface 122 of glue and trim ring 120, and flanging 142 offsets with protuberance 122a, and translucent cover 140 is fixed on fore shell 110 by trim ring 120.The common light-source chamber (figure is mark not) that forms sealing of translucent cover 140, trim ring 120 and fore shell 110.Light-source chamber can be accommodated the significant components such as light source 150.Flanging 142 offsets with protuberance 122a, can effectively prevent that translucent cover 140 from deviating from from fore shell 110.
The cross section that is appreciated that translucent cover 140 is not limited to parabola shaped, can be also the shapes such as semicircle.
Light source 150 is contained in light-source chamber, and is arranged on the lateral surface of light resource installing section 114.The heat that light source 150 sends is passed to main casing 112 through light resource installing section 114, and is externally dispersed by main casing 112.
See also Fig. 4, light source 150 comprises a plurality of LED lamps 152 and substrate 154.Substrate 154 can be aluminium base, and it has the good capacity of heat transmission.A plurality of LED lamps 152 intervals are packaged on substrate 154, and substrate 154 fits with the lateral surface of light resource installing section 114.Specifically in the present embodiment, explosion-proof lamp structure 100 also comprises compressing tablet (not shown), and compressing tablet is fixed on light resource installing section 114 by threaded fastener.Compressing tablet pressure holding substrate 154, to be fixed on substrate 154 lateral surface of light resource installing section 114.
The lateral surface of light resource installing section 114 is comprised of multistage strip plane (figure is mark not), and substrate 154 fits with strip plane.The two ends of strip plane are respectively equipped with two projections (figure is mark not), and substrate 154 is limited between two projections.
In above-mentioned explosion-proof lamp structure 100, fore shell 110 is made by Heat Conduction Material.Light source 150 is arranged in the light resource installing section 114 of fore shell 110, and the heat producing during its work is passed to main casing 112 through light resource installing section 114, and is externally dispersed by main casing 112, and main casing 112 outsides are provided with fin 112c.Whole fore shell 110 structure that is formed in one, has improved above-mentioned explosion-proof lamp structure 100 heat-sinking capabilities.Meanwhile, light source 150 is distributed on the lateral surface of round table-like light resource installing section 114, and its light sending can be dispersed to surrounding uniformly, has improved and uniformity of light.
Be appreciated that in other embodiments, above-mentioned explosion-proof lamp structure 100 also can adopt the light fixture of other type to replace LED lamp 152 as light source 150.In addition, substrate 154 also can be made arc surfaced, and the lateral surface of the light resource installing section 114 fitting with substrate 154 can be also corresponding arc surfaced.
Reflector 160 comprises round table-like main body 162 and kink 164.The lateral surface of reflector 160 is through electroplating processes.Main body 162 comprises that the second largest head end 162a of opening and second microcephaly relative with second largest head end 162a hold 162b.Main body 162 is sheathed on outside light resource installing section 114.The first microcephaly that light resource installing section 114 is fixed on by threaded fastener in main body 162 tops holds on 114b.On the sidewall of main body 162, offer through hole (figure is mark not), light source 150 is through through hole and be positioned at main body 162 outsides.
Kink 164 is extended and is bent to form by the outer peripheral edges sidewall of second largest head end 162a, forms the angle that is less than 90 degree between kink 164 and the sidewall of main body 162.Light source 150 is distributed in light resource installing section 114 near kink 164 places, the light that light source 150 is launched to kink 164 directions through kink 164 to translucent cover 140 directions reflections, the light sending with maximum using light source 150.
See also Fig. 5, the second microcephaly of reflector 160 holds the outwardly formation hemisphere face of 162b.The light of kink 164 reflections repeatedly reflects and reflects in light-source chamber, and its part can be irradiated in the second microcephaly of reflector 160 and be held on 162b.It is hemisphere face that the second microcephaly holds 162b, irradiate in the second microcephaly hold light on 162b reflex to this explosion-proof lamp structure 100 under, improve the brightness under explosion-proof lamp structure 100.
Be appreciated that, when the light sending when light source 150 is more even, reflector 160 can omit.
Please again consult Fig. 1, back cover 170 is the box like structure of an end opening.Back cover 170 closures are in the 3rd openend 112b, and back cover 170 surrounds electric chamber (figure is mark not) jointly with fore shell 110.Light resource installing section 114 is separated electric chamber and light-source chamber.
Driven unit 180 is fixed in electric chamber, and is electrically connected to light source 150.Driven unit 180 comprises metal shell (figure is mark not) and is packaged in the electronics silica gel (not shown) in metal shell, to meet the requirement of explosion proof of pouring type light fixture.
On the first openend 112a of main casing 112, also offer axial wire guide (figure is mark not).Wire guide is conducted electric chamber and light-source chamber.Seal nipple 190a is arranged in wire guide, and wire guide is covered, and wire 190b wears wire guide by seal nipple 190a, by driven unit 180, by wire 190b, is electrically connected to light source 150.
Above-mentioned explosion-proof lamp structure 100 is compared with traditional explosion-proof lamp structure, at least has the following advantages:
First, the fore shell 110 of above-mentioned explosion-proof lamp structure 100 structure that is formed in one, and made by Heat Conduction Material.Light source 150 is arranged in the light resource installing section 114 of fore shell 110, and the heat producing during its work is passed to main casing 112 through light resource installing section 114, and is externally dispersed by main casing 112, and the heat-sinking capability of its whole explosion-proof lamp structure 100 is stronger.
Meanwhile, light source 150 is distributed on the lateral surface of round table-like light resource installing section 114, and through reflector 160 reflections, its light sending can be dispersed to surrounding uniformly, has improved and uniformity of light.
In addition, above-mentioned explosion-proof lamp structure 100 adopts the multiple type of explosion proof construc tion such as flame proof, encapsulation combined, has good reliability, and security is higher, and the life-span is more permanent.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an explosion-proof lamp structure, is characterized in that, comprising:
Fore shell, is made by Heat Conduction Material, and described fore shell comprises:
Main casing, is the tubular structure of both ends open, comprises the first openend, is provided with spaced reciprocally a plurality of fin on the lateral wall of described main casing;
Light resource installing section, round table-like structure for hollow, comprise the first head end of opening and the first little head end of the sealing relative with described first head end, described first head end is connected on the inner peripheral of described main casing one end, and described light resource installing section is by described the first openend sealing; And
Boss, openend outer peripheral edges are outwardly forms by described first, and described boss is ring-type, and its cross section is " L " character form structure, on described boss inner peripheral, offers internal thread, and described light resource installing section and described main casing and described boss are one-body molded;
Trim ring, it has relative inner surface and outer surface, and the outer surface of described trim ring is provided with external screw thread, the inner surface of described trim ring is provided with protuberance, described protuberance is circulus, and described boss is sheathed on outside described trim ring, and the external screw thread of described trim ring and the internal thread of described boss are screwed;
Translucent cover, comprise the second openend, the second openend of translucent cover is provided with flanging, the periphery of described flanging and the inner surface of described trim ring are bonding, and described flanging and described protuberance offset, so that described translucent cover is fixed on described fore shell by described trim ring, described translucent cover and described fore shell surround light-source chamber jointly; And
Light source, is contained in described light-source chamber, and is arranged on the lateral surface of described light resource installing section, and the heat that described light source sends is passed to described main casing through described light resource installing section, and is externally dispersed by described main casing.
2. explosion-proof lamp structure according to claim 1, it is characterized in that, on the outer surface of described trim ring, also offer annular seal groove, described explosion-proof lamp also comprises sealing ring, described sealing ring is arranged in described annular seal groove, and described sealing ring is by described trim ring and the sealing of the described fore shell place of screwing togather.
3. explosion-proof lamp structure according to claim 1, is characterized in that, described light source comprises a plurality of LED lamps and substrate, and described a plurality of LED interval is packaged on described substrate, and the lateral surface of described substrate and described light resource installing section fits.
4. explosion-proof lamp structure according to claim 3, is characterized in that, the lateral surface of described light resource installing section is comprised of multistage strip plane, and described substrate and described strip plane fit.
5. explosion-proof lamp structure according to claim 4, is characterized in that, the two ends of described strip plane are respectively equipped with two projections, and described substrate is limited between described two projections.
6. explosion-proof lamp structure according to claim 1, is characterized in that, described main casing also comprises three openend relative with described the first openend; Described explosion-proof lamp structure also comprises back cover, described back cover is the box like structure of an end opening, described back cover closure is in described the 3rd openend, and described back cover and described fore shell surround electric chamber jointly, and described light resource installing section is separated described electric chamber and described light-source chamber.
7. explosion-proof lamp structure according to claim 6, it is characterized in that, also comprise driven unit, described driven unit is fixed in described electric chamber, and be electrically connected to described light source, described driven unit comprises metal shell and is packaged in the electronics silica gel in described metal shell.
8. explosion-proof lamp structure according to claim 7, is characterized in that, on the first openend of described main casing, also offers axial wire guide, and described wire guide is conducted described electric chamber and described light-source chamber; Described explosion-proof lamp structure also comprises seal nipple and wire, described seal nipple is arranged in described wire guide, and described wire guide is covered, described wire wears described wire guide by described seal nipple, describedly by driven unit, by described wire, is electrically connected to described light source.
9. explosion-proof lamp structure according to claim 1, it is characterized in that, also comprise reflector, described reflector comprises round table-like main body and kink, described main body comprises the second largest head end of opening and the second little head end relative with described second largest head end, described main body is sheathed on outside described light resource installing section, on the sidewall of described main body, offer through hole, described light source is through described through hole and be positioned at described main body outside, described kink is extended and is bent to form by the outer peripheral edges sidewall of described second largest head end, between described kink and the sidewall of described main body, form the angle that is less than 90 degree.
10. explosion-proof lamp structure according to claim 9, is characterized in that, the outwardly formation hemisphere face of the second little head end of described reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310199014.6A CN104180207B (en) | 2013-05-24 | 2013-05-24 | explosion-proof lamp structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310199014.6A CN104180207B (en) | 2013-05-24 | 2013-05-24 | explosion-proof lamp structure |
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| Publication Number | Publication Date |
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| CN104180207A true CN104180207A (en) | 2014-12-03 |
| CN104180207B CN104180207B (en) | 2016-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310199014.6A Expired - Fee Related CN104180207B (en) | 2013-05-24 | 2013-05-24 | explosion-proof lamp structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508887A (en) * | 2015-12-31 | 2016-04-20 | 浙江通明电器有限公司 | Explosive-proof lamp cover of explosion-proof lamp and explosion-proof lamp |
| CN106609948A (en) * | 2015-10-15 | 2017-05-03 | 海洋王照明科技股份有限公司 | An explosion-proof platform lamp |
| CN109958918A (en) * | 2017-12-25 | 2019-07-02 | 海洋王照明科技股份有限公司 | Tunnel lamp |
| CN113007682A (en) * | 2021-03-12 | 2021-06-22 | 海洋王（东莞）照明科技有限公司 | Explosion-proof lamp |
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| EP0823589A2 (en) * | 1996-08-06 | 1998-02-11 | Appleton Electric Company | Encapsulated explosion-proof pilot light |
| CN2921590Y (en) * | 2006-06-14 | 2007-07-11 | 深圳市海洋王投资发展有限公司 | Antiexplosive platform lamp |
| CN201412716Y (en) * | 2009-06-16 | 2010-02-24 | 华夏防爆电气有限公司 | Explosion isolation and intrinsically safe type LED lighting lamp |
| CN201661872U (en) * | 2009-07-17 | 2010-12-01 | 石家庄高新区立明电子科技有限公司 | Flameproof LED anti-explosion lamp |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0823589A2 (en) * | 1996-08-06 | 1998-02-11 | Appleton Electric Company | Encapsulated explosion-proof pilot light |
| CN2921590Y (en) * | 2006-06-14 | 2007-07-11 | 深圳市海洋王投资发展有限公司 | Antiexplosive platform lamp |
| CN201412716Y (en) * | 2009-06-16 | 2010-02-24 | 华夏防爆电气有限公司 | Explosion isolation and intrinsically safe type LED lighting lamp |
| CN201661872U (en) * | 2009-07-17 | 2010-12-01 | 石家庄高新区立明电子科技有限公司 | Flameproof LED anti-explosion lamp |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609948A (en) * | 2015-10-15 | 2017-05-03 | 海洋王照明科技股份有限公司 | An explosion-proof platform lamp |
| CN105508887A (en) * | 2015-12-31 | 2016-04-20 | 浙江通明电器有限公司 | Explosive-proof lamp cover of explosion-proof lamp and explosion-proof lamp |
| CN105508887B (en) * | 2015-12-31 | 2019-02-22 | 浙江通明电器股份有限公司 | Explosion suppression type explosion-preventing lamp lampshade and explosion-proof lamp |
| CN109958918A (en) * | 2017-12-25 | 2019-07-02 | 海洋王照明科技股份有限公司 | Tunnel lamp |
| CN113007682A (en) * | 2021-03-12 | 2021-06-22 | 海洋王（东莞）照明科技有限公司 | Explosion-proof lamp |
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| Publication number | Publication date |
|---|---|
| CN104180207B (en) | 2016-12-28 |
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