CN101907282A - Internal respiration air bag balanced type anti-explosion and anti-corrosion method and lamp of anti-explosion electric apparatus - Google Patents
Internal respiration air bag balanced type anti-explosion and anti-corrosion method and lamp of anti-explosion electric apparatus Download PDFInfo
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- CN101907282A CN101907282A CN2009100860971A CN200910086097A CN101907282A CN 101907282 A CN101907282 A CN 101907282A CN 2009100860971 A CN2009100860971 A CN 2009100860971A CN 200910086097 A CN200910086097 A CN 200910086097A CN 101907282 A CN101907282 A CN 101907282A
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Abstract
The invention relates to an internal respiration air bag balanced type anti-explosion and anti-corrosion method of an anti-explosion electric apparatus. A loose air bag is connected to a sealing shell so as to ensure that the internal space of the sealing shell is isolated from the external environment without pressure difference. The invention also relates to an internal respiration air bag balanced type anti-explosion and anti-corrosion lamp which comprises a lamp body and is characterized in that the sealing shell of the lamp body is connected with the loose air bag to ensure that the internal space of the sealing shell is isolated from the external environment without pressure difference. The air bag is an external air bag, the inner cavity of the external air bag is communicated with the inner cavity of the sealing shell; or the air bag is an internal air bag, and the inner cavity of the internal air bag is communicated with the external environment through a connecting pipe. The invention can realize the free respiration with the external environment without pressure difference and does not have the problem of gas or dust fog exchange in the environment; and the air bag is used as a respirator arranged in the electric apparatus and has remarkable anti-exploration and anti-corrosion property.
Description
Technical field
The present invention relates to the field of explosion-proof electric apparatus, particularly air bag balanced explosion proof and corrosion protection method of a kind of internal respiration type of explosion-proof electric apparatus and light fixture.
Background technology
As everyone knows, light fixture is in use because expanding with heat and contract with cold of gas can the generation respiration in the lamp.During one degree centigrade of volumetric expansion zero degrees celsius of the every rising of air 1/273rd, though the light fixture temperature rise difference of different electric light sources, we did experiment even the such cold light source of electronic energy-saving lamp is placed on the temperature rise that also can produce in the sealed lamps more than 70 ℃, make the volume of air in the light fixture expand about 1/4th, be enough to the safety glass of explosion 5 millimeters thick.So, a large amount of general purpose light fixtures is just made open type, but outdoor lamp will be accomplished rain-proof dust-proof at least, general light fixture will be accomplished certain sealing level, for example the IP65 degree of protection has tangible respiration but this class seals the light fixture of grade, can not be used in to have potential explosion hazard environment place, if have inflammable and explosive gas or dust will be inhaled in the lamp body in the environment because when turning off the light, just in time run into, the danger of when lighting a lamp once more, just may blasting.
External restriction breathing explosion proof and corrosion protection light fixture had entered China in recent years, belonged to a kind of of " n " type anti-explosion product, still belonged to new product in China.Its principle is the very good lamp outer casing of a kind of sealing property of design, light source and relevant electrical equipment are packed in it, restriction breathing explosion-proof lamp shell can bear in the lamp malleation to a certain degree, only expanding gas surpasses authorized pressure just to external leakage in lamp, equally also can bear negative pressure to a certain degree, also can the outer gas of inspiration lamp when going beyond the limit.The characteristics of this light fixture be in a respiratory cycle, air-breathing time started is postponed, air-breathing speed slows down, air-breathing total amount reduces.Its advantage uses light source kind analogy INCREASEDSAFETY light fixture many, and weight ratio flame-proof type light fixture is light.Its shortcoming one is to use scope to lack than the flame-proof type light fixture, can only be used in and have potential explosion hazard gaseous environment 2 districts (environmental accident is rare, very short even hold time, therefore be difficult to overlap, also be not enough to produce blast) even overlap the hazardous gas of inspiration with the intake period of light fixture; The 2nd, lamp housing sealing manufacture difficulty is big, the test requirements document of restriction breathing explosion-proof lamp body seal is to being evacuated in the shell-3kPa, rely on the sealing property of shell self to make it not drop to 1.5kPa in 3min then, generally speaking, manufacturing firm is difficult to do and obtains.
Before the restriction breathing explosion-proof lamp occurred, explosion-proof lamp also had flame-proof type, INCREASEDSAFETY or the like.The flame-proof type light fixture can be used in the place with potential explosion hazard gaseous environment 1 district, this light fixture mainly is to utilize the high strength of product casing and flame proof to reach explosion-proof purpose, allow to have in the surrounding environment accident to take place, also allow to exist in the light fixture dangerous substance.It is to utilize the intensity of lamp outer casing to prevent the pressure damage lamp body that the lamp interior blast produces and light surrounding environment, utilizes minimum gap, outer cover metal composition surface simultaneously, prevents that the interior flame of light fixture from spreading out of the inflammable substance around lighting.The INCREASEDSAFETY light fixture is by increasing a series of safety measures, and the temperature rank of handling, limit light fixture with the flame proof measure as the degree of protection that strengthens electric clearance and creep age distance, increase shell, with the place that may occur spark in the light fixture waits and reaches security purpose.This explosion-proof type light fixture is most of to be used in 2 districts.
In sum, be not difficult to find that the restriction breathing light fixture is to enter lamp body inside by housing good sealing property confining blast gas, mist or corrosive gas to reach the explosion proof and corrosion protection purpose; The flame-proof type light fixture is to utilize good structure in lamp outer casing composition surface and high strength shell to reach explosion-proof purpose; The INCREASEDSAFETY light fixture is the anticorrosion purpose that reaches light fixture by the security that increases light fixture itself.They have shortcoming separately: restriction breathing light fixture seal request height is difficult to reach; The flame-proof type fitting structure is huge, heavy; INCREASEDSAFETY fitting structure complexity requires high to electrical equipment manufacturing technology in the lamp.But they all have a common fatal shortcoming, can not stop promptly that pernicious gas enters in the lamp body in the environment.
Summary of the invention
The objective of the invention is to, air bag balanced explosion proof and corrosion protection method of the internal respiration type that can be applicable to a kind of explosion-proof electric apparatus and light fixture are provided, circulation free breathing pattern (hereinafter to be referred as the internal respiration type) explosion proof and corrosion protection method in this brand-new gasbag-type, stop from the principle of structure that pernicious gas enters in the cavity of electrical equipment the environment, very simple, the easy work of its blast resistance construction, light and handy, and weight is little, safe, long service life, easy to maintenance.
To achieve these goals, the invention provides a kind of air bag balanced explosion proof and corrosion protection method of internal respiration type of explosion-proof electric apparatus, this method is by inserting the air bag of a relaxed state on seal casinghousing, so that the inner space of seal casinghousing and external environment condition be isolated, and do not have pressure reduction.Described air bag is the external air bag, and the inner chamber of this external air bag communicates with the seal casinghousing inner chamber by taking over; Or described air bag is built-in air bag, and the inner chamber of this built-in air bag is by taking over and communicating with external environment.Like this, electrical equipment in use can not have under the situation of pressure reduction with external environment to be breathed at internal freedom, do not exist with environment in gas or the problem of cloud exchange, gas in the environment, particularly dust does not advance in the chamber, the respirator that air bag is considered as carrying in the electrical equipment, its explosion proof and corrosion protection performance is obvious.And this method is very low to the seal request of housing, and we do the every lamp housing by the 0.5-1KPa watertight test of overtesting can both reach satisfied result.Such housing seal ratio is easier to make, and is more much lower than restriction breathing pattern light fixture manufacturing cost, more light than flame-proof type light fixture weight, can save a large amount of metal materials and the energy.
In order to realize another above-mentioned purpose, the present invention also provides a kind of internal respiration type air bag balanced explosion proof and corrosion protection light fixture, comprise lamp body, it is characterized in that, insert the air bag of a relaxed state on the seal casinghousing of described lamp body, so that the inner space of seal casinghousing and external environment condition be isolated, and there is not pressure reduction.Described air bag is the external air bag, and the inner chamber of this external air bag communicates with the seal casinghousing inner chamber by taking over; Or described air bag is built-in air bag, and the inner chamber of this built-in air bag is by taking over and communicating with external environment.
As a kind of preferred, described external air bag is arranged at the lamp body hull outside by rigidity air bag outer cover, and described rigidity air bag outer cover communicates with external environment, and forms one with lamp body.In the practical application, the shape of air bag can design arbitrarily with the outward appearance of lamp housing profile and formation supporting with it coordination, for example necking down drum (bottle) type, annulus (tire) type, flat side (hot-water bottle) type, barrier film (straw hat) type or the like.
As further preferred, described light fixture adopts concentrating type, and promptly a plurality of light fixtures are concentrated by pipe-line system and are discharged in the big air bag that is placed on ground.Be provided with the gas analysis sensing device in the described air bag, be used for real-time monitoring.
As further preferred, fill carbon dioxide, nitrogen or inert gas in described air bag and the lamp body, with its security of further increase, especially be fit in the above-mentioned concentrating type lamp system.Because gas can not leak in the lamp in theory, open light cover during except light source or electrical maintenance.
As another preferred, described air bag is through a radiator and lamp body internal communication.Described radiator adopts the thin bronze pan tube of thin-walled.Particularly, if adopt high power high-temperature the electric light source for example above Metal halogen lamp of 400W, sodium vapor lamp, with air bag and lamp chamber connecting pipe lengthening (for example with the thin copper pipe of thin-walled) dish near gasbag chamber or on every side, make the hot gas of discharging in the lamp chamber enter air bag, to reduce the temperature of air bag through behind the heat dissipation of pipeline.
The material first-selection of making air bag of the present invention is to satisfy the gas temperature requirement that electrical equipment gives off, and with different light sources, different power, different shell shapes is relevant with volume, and these are not difficult to obtain from experiment; Next is to use the life-span and to the tolerance of surrounding environment, mainly is performance such as ageing-resistant, corrosion-resistant; Secondly be again can do frivolously, soft, gas top can not produce pressure to gas owing to the weight of air bag self in the air bag to covering to make it.Because air bag is to be in relaxed state in the course of the work all the time, and is less demanding to the tension force and the elastic force of air bag.
The invention has the advantages that, air bag balanced explosion proof and corrosion protection method of the internal respiration type of explosion-proof electric apparatus of the present invention and light fixture make air pressure and the outside atmosphere air pressure balance in the chamber, and, as long as gas, dust in the environment do not advance in the lamp chamber, just reached our goal of the invention.
The gas of discharging was collected in the outer air bag of lamp housing cavity by a little pipe when temperature raise in the light fixture of the present invention, air bag environment of living in communicates with the lamp external environment, turn off the light the back along with temperature in the lamp housing descends, gas in the air bag can constantly be got back in the lamp housing again automatically, as long as the volume of air bag is greater than the gas volume of discharging in the lamp housing, and the enough softness of air bag material and frivolous, in the so whole respiratory, the gas atmosphere in the light fixture is the same with lamp external environment air pressure all the time.Air bag with the place that be fit to of air cell covering outside lamp housing, forms one with light fixture by rigidity air bag outer cover, becomes an independently explosion proof and corrosion protection light fixture.
Like this, light fixture in use can not have under the situation of pressure reduction with external environment freely to be breathed in lamp interior, do not exist with environment in gas or the problem of cloud exchange, the respirator that air bag is considered as carrying in the light fixture, its explosion proof and corrosion protection performance is obvious.Because the respiration and the surrounding environment of this method do not have pressure reduction, therefore, be very low to the seal request of lamp housing, we do the every lamp housing by the 0.5-1KPa watertight test of overtesting can both reach satisfied result.Such light fixture sealing is made than being easier to, and is more much lower than restriction breathing pattern light fixture manufacturing cost, more light than flame-proof type light fixture weight, can save a large amount of metal materials and the energy.
Advantage of the present invention also has environment for use wide, it can both adapt to all explosion-proof lamp environments for use, the corrosion-proof luminaire environment for use more can adapt to, the cluster lamp is placed gasbag chamber and be can be used as the use of subaqual landscape lamp on the bank, use as Tunnel Lamp and outdoor lamp (as advertising lamp, street lamp), it has extraordinary rainproof, moisture-proof characteristic.
Description of drawings
Fig. 1 is the schematic diagram of one embodiment of the invention;
Wherein, Fig. 1 a is a kind of front view of high-power energy saving Flood lamps and lanterns, and Fig. 1 b is the cutaway view of light fixture, and Fig. 1 c is the schematic diagram of necking down cylindrical shape air bag.
Fig. 2 is the schematic diagram of another embodiment of the present invention;
Wherein, Fig. 2 a is a kind of structural representation of high-power Mining lamps and lanterns, and Fig. 2 b is the schematic diagram of annular air bag, and Fig. 2 c is the front view of radiating tube;
Fig. 3 is the schematic diagram of another embodiment of the present invention;
Wherein, Fig. 3 a is the front view of high-power LED lamp, and Fig. 3 b is the side view of light fixture, and Fig. 3 c is the structural representation of flat side's pocket type air bag;
Fig. 4 is the schematic diagram of another embodiment of the present invention;
Fig. 5 is the schematic diagram of another embodiment of the present invention;
Wherein, Fig. 5 a is the front view of high-power energy saving Flood lamps and lanterns, and Fig. 5 b is the side view of light fixture, and Fig. 5 c is the structural representation of flat side's pocket type air bag.
The accompanying drawing sign
1, lamp housing 2, air bag 3, rigidity air bag outer cover
4, light source 5, respiratory siphon joint 6, electric apparatus room
7, electric ballast 8, safety glass 9, radiator
10, lamp chamber breathing import and export 11, air bag are breathed import and export 12, electric apparatus room is breathed import and export
13, the suction and discharge of cluster lamp be in charge of 14, cluster lamp suction and discharge house steward 15, the total gasbag chamber of cluster lamp
The specific embodiment
Further specify the air bag balanced explosion proof and corrosion protection light fixture of internal respiration type of the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, be the external air bag internal respiration type high-power electric energy-saving floodlight application schematic diagram of a shallow arc wasp waist type profile.Necking down doleiform air bag 2 is placed on the wasp waist groove of lamp housing 1, and air bag has rigidity air bag outer cover 3 outward, makes full use of the outer useful space of lamp housing, to reduce the thickness of whole light fixture.Respiratory siphon joint 5 is made 90 ° of elbow one ends and is connected with the breathing import and export of lamp chamber, and the other end is breathed import and export 11 with air bag and is connected.Light source 4 and electric ballast 7 are placed in the sealed light chamber of lamp housing and safety glass 8 combinations.Described lamp housing is the aluminium alloy compression casting moulding, appearance is handled by the antistatic plastic-blasting, this light fixture sealing has only two places, the one, safety glass and lamp housing periphery are by the corrosion-resistant anti-aging adhesive tape of heatproof (this figure is mark not) sealing, the 2nd, lamp housing and electric apparatus chamber are drawn the sealing (this figure is mark not) between the electric wire, as long as accomplish that the watertight test of 5-10cm just can reach seal request of the present invention under water.
As shown in Figure 2, be that a internal respiration type bulkhead lamp capable is used schematic diagram.Use high power light source 4, the above sodium vapor lamp of 400W for example, metal halide lamp, corrugated hose has added radiator 9, and fluorescent tube chamber and electric apparatus room 6 divides and is arranged, fluorescent tube is to be placed on separately in the fluorescent tube chamber of lamp housing 1 and safety glass 8 compositions, because temperature was than higher when fluorescent tube used, the setting of lamp cavity volume is also bigger, therefore the lamp housing surface area is also bigger, be convenient to heat radiation, to reduce lamp intracavity gas temperature, because it is many to breathe the gas that enters in the air bag, air bag 2 is designed to annulus (tire) shape among the figure, and leave two and breathe import and export 11, the lamp chamber breathe to be imported and exported 10 and is connected with radiator one end, and the radiator other end and air bag are breathed and imported and exported 11 and is connected, and electric apparatus room breathes that import and export 12 are direct to be connected with another breathing import and export 11 of air bag.Air bag case 3 is placed on lamp housing top, protection air bag and radiator.Breathe in this money light fixture lamp chamber and electric apparatus room is breathed shared same air bag, and purpose one is to dwindle whole lamp body to amass, and the 2nd, simplified structure.
As shown in Figure 3, be that a internal respiration type great power LED sheet-type floodlight is used schematic diagram.Led light source plate 4 is placed in the seal lamps chamber of plate-shaped pack alloy lamp housing 1 and safety glass 8 compositions with Switching Power Supply, and air bag 2 is made in the air bag case 3 at the deltiod placement and the lamp housing back side, and whole fitting structure is simple, frivolous.
More than 3 sections light fixture, we are through overtesting, effect is all very good, all can reach the described purpose of content of the present invention.
As shown in Figure 4, be a concentrating type light fixture respiratory system structural representation.The breathing of lamp chamber and electric apparatus room 6 (if with the situation that sets up separately in the lamp chamber under) is imported and exported by subtube 13, total pipeline 14 and total gasbag chamber 15 of being located at ground and is connected.Because structure is very simple, this paper is described in detail.
As shown in Figure 5, the internal respiration type high-power electric energy-saving floodlight that is a built-in air bag is used schematic diagram, the light fixture inner chamber has enough spaces, air bag 2 is placed in the lamp chamber, make full use of the useful space in the lamp housing, the respiratory siphon joint 5 of air bag is made 90 ° of elbows, directly leads in the lamp external environment atmosphere.Light source 4 and electric ballast 7 are placed in the sealed light chamber of lamp housing and safety glass 8 combinations.
This is another kind of explosion-proof method, exactly when the light fixture inner chamber has enough spaces, air bag can be placed directly in the lamp chamber, the air bag pneumostome leads in the lamp external environment atmosphere, and the air bag inner chamber communicates with atmosphere, if during outdoor use, the air bag pneumostome can add the lamp cheek, prevents that rainwater from entering air bag.In fact, also it doesn't matter in water inlet, when light fixture uses bright lamp, and temperature rise in the lamp, lamp chamber air pressure raises gas in the air bag to be extruded and comprises water; When turning off the light, when producing negative pressure when the lamp cavity temperature descends the air bag pneumostome again can be from atmosphere inspiration gas, the volume expansion of light fixture inner chamber and dwindle to breathe and solve by air bag.This structure can reach same goal of the invention, and just structure is simpler.This explosion-proof lamp of our invention belongs to point-and-shoot, does not need to consider the reset condition of air bag when the user uses.
If external air bag, to guarantee there is not air in the air bag before using, otherwise when turning on light for the first time, lamp chamber gas expands and does not fall to the air bag discharging, the lamp chamber will produce malleation, because lamp chamber and safety glass are by elasticity heatproof adhesive tape sealing, there is the gas of pressure can be outside resilient seal surface is extruded lamp, but when turning off the light, considered to surpass the volume that lamp chamber gas expands in the time of may producing negative pressure (promptly being lower than atmospheric pressure) because of the bag volume design in the lamp chamber never, enough lamp chambeies besoin de respirer.
In sum, internal respiration type explosion proof and corrosion protection light fixture of the present invention, because its explosion proof and corrosion protection novel structure, uniqueness, any gas in the environment for use and cloud can not enter in lamp chamber and the electric apparatus room, and all simpler, cheap for manufacturing cost, in case implement than former any explosion-proof lamp structure, newly add the brand-new explosion proof and corrosion protection light fixture of a class will for explosion-proof lamp big family, can produce tremendous influence explosion-proof lamp industry both at home and abroad.
Need to prove, more than the embodiment of the present invention of Jie Shaoing and and unrestricted, those skilled in the art is to be understood that, the modification of the spirit and scope that do not break away from technical solution of the present invention of any technical scheme to this method or be equal to alternatively, it all should be encompassed in the claim scope of the present invention.
Claims (10)
1. the air bag balanced explosion proof and corrosion protection method of the internal respiration type of an explosion-proof electric apparatus, this method be by inserting the air bag of a relaxed state on seal casinghousing, so that the inner space of seal casinghousing and external environment condition be isolated, and do not have pressure reduction.
2. the air bag balanced explosion proof and corrosion protection method of the internal respiration type of explosion-proof electric apparatus according to claim 1 is characterized in that, described air bag is the external air bag, and the inner chamber of this external air bag communicates with the seal casinghousing inner chamber by taking over; Or
Described air bag is built-in air bag, and the inner chamber of this built-in air bag is by taking over and communicating with external environment.
3. air bag balanced explosion proof and corrosion protection light fixture of the air bag balanced internal respiration type of internal respiration type, comprise lamp body, it is characterized in that, insert the air bag of a relaxed state on the seal casinghousing of described lamp body, so that the inner space of seal casinghousing and external environment condition be isolated, and there is not pressure reduction.
4. the air bag balanced explosion proof and corrosion protection light fixture of internal respiration type according to claim 3 is characterized in that described air bag is the external air bag, and the inner chamber of this external air bag communicates with the seal casinghousing inner chamber by taking over; Or
Described air bag is built-in air bag, and the inner chamber of this built-in air bag is by taking over and communicating with external environment.
5. the air bag balanced explosion proof and corrosion protection light fixture of internal respiration type according to claim 4, it is characterized in that, described external air bag is arranged at the lamp body hull outside by rigidity air bag outer cover, and described rigidity air bag outer cover communicates with external environment, and forms one with lamp body.
6. the air bag balanced explosion proof and corrosion protection light fixture of internal respiration type according to claim 3 is characterized in that, described light fixture adopts concentrating type, and a plurality of light fixtures are concentrated by pipe-line system and are discharged in the big air bag that is placed on ground.
7. the air bag balanced explosion proof and corrosion protection light fixture of internal respiration type according to claim 6 is characterized in that, is provided with the gas analysis sensing device in the described air bag, is used for real-time monitoring.
8. according to claim 3 or the air bag balanced explosion proof and corrosion protection light fixture of 6 described internal respiration types, it is characterized in that, fill carbon dioxide, nitrogen or inert gas in described air bag and the lamp body.
9. the air bag balanced explosion proof and corrosion protection light fixture of internal respiration type according to claim 3 is characterized in that, described air bag is connected on through a radiator on the seal casinghousing of lamp body, with the lamp body internal communication.
10. the air bag balanced explosion proof and corrosion protection light fixture of internal respiration type according to claim 9 is characterized in that, described radiator adopts the thin bronze pan tube of thin-walled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100860971A CN101907282A (en) | 2009-06-05 | 2009-06-05 | Internal respiration air bag balanced type anti-explosion and anti-corrosion method and lamp of anti-explosion electric apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100860971A CN101907282A (en) | 2009-06-05 | 2009-06-05 | Internal respiration air bag balanced type anti-explosion and anti-corrosion method and lamp of anti-explosion electric apparatus |
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| CN101907282A true CN101907282A (en) | 2010-12-08 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878539A (en) * | 2012-10-08 | 2013-01-16 | 深圳大学 | Deformation type street lamp breathing device |
| CN103234150A (en) * | 2013-04-11 | 2013-08-07 | 深圳市通用科技有限公司 | Anti-explosion lamp |
| CN104662366A (en) * | 2013-09-25 | 2015-05-27 | 株式会社Elm | Underwater lighting apparatus and under-water electronic apparatus |
| CN110242905A (en) * | 2019-07-22 | 2019-09-17 | 桂林海威科技股份有限公司 | A kind of waterproof and dampproof structure and installation method of LED underground lamp |
| CN111966143A (en) * | 2020-08-28 | 2020-11-20 | 界首市南都华宇电源有限公司 | Storage battery electrode plate heating curing steam control device |
| CN112780958A (en) * | 2021-02-27 | 2021-05-11 | 李美瑶 | Breathing type LED heat dissipation lamp |
| CN113653972A (en) * | 2021-08-18 | 2021-11-16 | 安徽艳阳电气集团有限公司 | Explosion-proof lamp for nuclear |
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2009
- 2009-06-05 CN CN2009100860971A patent/CN101907282A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878539A (en) * | 2012-10-08 | 2013-01-16 | 深圳大学 | Deformation type street lamp breathing device |
| CN102878539B (en) * | 2012-10-08 | 2015-08-26 | 深圳大学 | A kind of deformation type street lamp breathing equipment |
| CN103234150B (en) * | 2013-04-11 | 2015-09-30 | 深圳市通用科技有限公司 | A kind of explosion-proof lamp |
| CN103234150A (en) * | 2013-04-11 | 2013-08-07 | 深圳市通用科技有限公司 | Anti-explosion lamp |
| US9488342B2 (en) | 2013-09-25 | 2016-11-08 | Elm, Inc. | Underwater lighting device and underwater electronic device |
| EP2908047A4 (en) * | 2013-09-25 | 2015-12-02 | Elm Inc | Underwater lighting apparatus and under-water electronic apparatus |
| CN104662366A (en) * | 2013-09-25 | 2015-05-27 | 株式会社Elm | Underwater lighting apparatus and under-water electronic apparatus |
| CN104662366B (en) * | 2013-09-25 | 2018-07-06 | 株式会社Elm | Electronic device in lighting device and water in water |
| CN110242905A (en) * | 2019-07-22 | 2019-09-17 | 桂林海威科技股份有限公司 | A kind of waterproof and dampproof structure and installation method of LED underground lamp |
| CN111966143A (en) * | 2020-08-28 | 2020-11-20 | 界首市南都华宇电源有限公司 | Storage battery electrode plate heating curing steam control device |
| CN112780958A (en) * | 2021-02-27 | 2021-05-11 | 李美瑶 | Breathing type LED heat dissipation lamp |
| CN113653972A (en) * | 2021-08-18 | 2021-11-16 | 安徽艳阳电气集团有限公司 | Explosion-proof lamp for nuclear |
| CN113653972B (en) * | 2021-08-18 | 2023-09-05 | 安徽艳阳电气集团有限公司 | Nuclear explosion-proof lamp |
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Open date: 20101208 |