CN102705772A - Offshore platform lamp - Google Patents
Offshore platform lamp Download PDFInfo
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- CN102705772A CN102705772A CN201110075176XA CN201110075176A CN102705772A CN 102705772 A CN102705772 A CN 102705772A CN 201110075176X A CN201110075176X A CN 201110075176XA CN 201110075176 A CN201110075176 A CN 201110075176A CN 102705772 A CN102705772 A CN 102705772A
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- light source
- main light
- offshore platform
- tilt switch
- platform lamp
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention is applicable to the technical field of lighting control and provides an offshore platform lamp. The offshore platform lamp comprises a main light source and a main light source drive circuit connected between a power supply and the main light source; and the main light source is an LED (Light-Emitting Diode) light source. The offshore platform lamp also comprises a power supply control module used for controlling the main light source drive circuit to drive the main light source to work; the power supply control module comprises a control unit and a first tilt switch, wherein the control unit controls the main light source drive circuit to drive the main light source to work; and a limiting tilt angle of the first tilt switch is a first tilt angle; and when the inclination of the lamp is larger than the first tilt angle, the first tilt switch controls the control unit to power off the main light source. The offshore platform lamp provided by the invention has the advantages of energy and electricity conservation, high brightness and good safety, the potential safety hazards are convenient to monitor, the timely maintenance is facilitated, and the accident rate is greatly reduced.
Description
Technical field
The invention belongs to lighting technical field, more particularly, relate to a kind of offshore platform lamp.
Background technology
Offshore platform is above tide and a kind of truss structures with level table; Production operation or other movable using are carried out in confession; It mainly comprises: two kinds of fixed offshore platform and floating offshore platforms; Be mainly used in operation fields such as offshore oil production, it must bear plays wreaking havoc of huge marine wave and sea wind.At present, the light fixture that at sea uses on the platform all only is used for illumination.
Progress along with the light fixture development technique; Occurred the LED lamp in recent years, because the LED light fixture has following advantage: (1) is energy-efficient: power is less relatively, economizes on electricity 80% with equiluminous than conventional light source; Equal power ratio conventional light source exceeds 5～7 times, is energy-conservation optimal selection; (2) long service life: LED can reach more than 50,000 hours service life, is 5～10 times of other light source; (3) safe and reliable: power is little, and caloric value is low, can not cause product appearance temperature too high, sets off an explosion; (4) adopt professional driving power, make LED work more stable, longer service life has improved safety coefficient; (5) environmental protection: the material by nontoxic is made, and pollutes unlike the mercurous heavy metal of fluorescent lamp, simultaneously also can recycling; (6) high brightness: make illumination brighter, clear.Therefore the LED lamp being applied to the illumination of offshore platform, will be a thing that very has innovative to be worth of lighting field.
But; Because need irradiation area by a relatively large margin, the offshore platform lamp all is fixed on the very high position of platform support basically, thereby how to find whether these light fixtures exist potential safety hazard to keep in repair but very difficulty; When there is potential safety hazard in light fixture certainly under the storm situation; Can not automatic shutoff circuit, realize self-shield, then possibly cause the generation of accident; Further, before a storm arrives,, then possibly cause unnecessary potential safety hazard if fail in time light fixture to be overhauled.How existing offshore platform lamp is improved; Make it when potential safety hazard occurring, can make prompting for the personnel of offshore platform; Can realize the automatic power-off protection of light fixture under the situation about can in time not overhaul though perhaps make prompting, then be a problem of having very much an actual application value.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of offshore platform lamp; Be intended to make it running into great outage realization protection automatically automatically in emergency circumstances; And can send the fault alarm prompting to the offshore platform personnel, so that maintenance in time, thereby potential safety hazard reduced.
For solving the problems of the technologies described above, the technical scheme of employing of the present invention is: a kind of offshore platform lamp is provided, comprise a main light source and be connected power supply and said main light source between the main light source drive circuit, said main light source is a led light source; Said offshore platform lamp also comprises:
One energy supply control module, its input termination power supply, the said main light source drive circuit of output termination is used to control the work of said main light source driving circuit drives main light source;
Said energy supply control module comprises:
One control module, the said main light source drive circuit of its output termination is controlled the work of said main light source driving circuit drives main light source; And
One first tilt switch; The said power supply of its input termination; The input of the said control module of output termination; The limit inclination angle of said first tilt switch is first inclination angle, and when said light fixture device inclined angle during greater than said first inclination angle, the said control module of said first slant switch controls makes the main light source outage.
Further; Said control module comprises one first signal acquisition circuit, one first signal buffer unit, a signal amplification circuit of serial connection successively; The input of said first signal acquisition circuit and said first tilt switch are electrically connected, and the output of said signal amplification circuit is electrically connected with the control end of said main light source drive circuit.
Further; Comprise that also one is connected in the secondary light source alarm module of power supply; Be provided with one second tilt switch and an external signal Tip element of serial connection successively in the said secondary light source alarm module; The limit inclination angle of said second tilt switch is second inclination angle, and said second inclination angle is less than first inclination angle of said first tilt switch.
Further, said external signal Tip element comprises a secondary light source drive circuit and a secondary light source that is connected in series with said second tilt switch.
Further, said secondary light source drive circuit is the stroboscopic design circuit, and said secondary light source is a low-power LED light source.
Further; Also comprise a data upload module; Said data upload module comprises a secondary signal Acquisition Circuit, a secondary signal buffer unit, a communication unit of serial connection successively; Said secondary signal Acquisition Circuit is connected in series with said second tilt switch, and the output of said communication unit is connected with the host computer of an acknowledge(ment) signal.
Further, said first tilt switch or second tilt switch comprise: a box body has a bottom surface; One magnet slideway has first end and second end, is angle with the bottom surface of said box body and is arranged in the said box body, and said first end is connected in the bottom surface of said box body; One magnet is located in the said magnet slideway; One magnetosensitive switch is located in the said box body and near second end of said magnet slideway.
Further, said magnet slideway is a smooth cuboid cavity, and said magnet is square.
Further, said magnetosensitive switch is a tongue tube.
Further, said tongue tube and the perpendicular setting of said magnet slideway.
The beneficial effect of offshore platform lamp provided by the invention is: compared with prior art, this offshore platform lamp adopts the LED lamp as light source, and is higher, more energy-conservation with brightness under the situation of constant power, and longer service life, safer reliable; Simultaneously; In control circuit, increased by one have first tilt switch energy supply control module; Make light fixture especially big potential safety hazard occur and when having little time to keep in repair when running into storm; Can under this first tilt switch effect, pass through this energy supply control module and realize outage automatically, other security incident perhaps take place in order to avoid light fixture damages; In addition; Also in lamp circuit, increase by one be provided with second tilt switch a secondary light source alarm module and a data upload module; And the limit inclination angle of second tilt switch is less than the limit inclination angle of first tilt switch; When there is general potential safety hazard in light fixture, can carries out stroboscopic through the secondary light source of this secondary light source alarm module and point out the personnel on the platform; After simultaneously signal acquisition circuit being gathered the signal of tilt switch closure state of secondary light source alarm module; Send into the secondary signal buffer cell; Judge that by the secondary signal buffer cell whether this closure state can be kept more than the certain hour, if judge signal stabilization, can be uploaded to host computer through communication module; By the situation of each light fixture of host computer collection, so that maintenance and inspection.
Description of drawings
The circuit diagram of the offshore platform lamp that Fig. 1 provides for the embodiment of the invention;
The cross-sectional view of the tilt switch that the offshore platform lamp that Fig. 2 provides for the embodiment of the invention is adopted;
The tilt switch that the offshore platform lamp that Fig. 3 provides for the embodiment of the invention is adopted is in level the state cross-sectional view when breaking off is installed;
The tilt switch that the offshore platform lamp that Fig. 4 provides for the embodiment of the invention is adopted is in the state cross-sectional view when being communicated with in the use.
The specific embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Please, be the circuit diagram of offshore platform lamp provided by the invention, it described at present with reference to Fig. 1.Said offshore platform lamp, comprise a main light source 1 and be connected power supply 100 and said main light source 1 between main light source drive circuit 2, said main light source 1 is a led light source; Said offshore platform lamp also comprises: an energy supply control module 3, and its input termination power supply 100, the said main light source drive circuit 2 of output termination is used to control said main light source drive circuit 2 and drives main light source 2 work; Said energy supply control module 3 comprises: one first tilt switch 31 and a control module 32, control module 32 are used to control said main light source drive circuit 2 and drive said main light source 1 work, the said main light source drive circuit 2 of its output termination; The said power supply 100 of the input termination of first tilt switch 31; The input of the said control module 32 of output termination; The limit inclination angle of said first tilt switch 31 is first inclination angle; When said light fixture device inclined angle during greater than said first inclination angle, the said control module 32 of said first tilt switch, 31 controls makes said main light source 1 outage.
The offshore platform lamp that the embodiment of the invention provides, employing LED etc. are as light source, and higher with brightness under the situation of constant power, more energy-conservation, longer service life has been removed the inconvenience of frequent replacing light source part from, and safer reliable; In control circuit, increased by one have first tilt switch at limit angle of inclination energy supply control module; Make light fixture especially big potential safety hazard occur and can realize outage automatically through this energy supply control module when having little time to keep in repair when running into abominable situation such as typhoon heavy rain, light fixture is played automatic protective effect avoid it to damage or other security incident occurs.
Further; Also see also Fig. 1; A kind of specific embodiment as offshore platform lamp provided by the invention; Said control module 32 comprises successively one first signal acquisition circuit 321, one first signal buffer unit 322, a signal amplification circuit 323 of serial connection, and the input of said first signal acquisition circuit 321 and said first tilt switch 31 are electrically connected, and the output of said signal amplification circuit 323 is electrically connected with the control end of said main light source drive circuit 2.In the present embodiment, first signal acquisition circuit 321 can be gathered and the continuous signal that collects is sent in the first signal buffer unit 322 signal of telecommunication of first tilt switch 31; If the signal that first signal acquisition circuit 321 collects is a continous-stable; Then the angle of inclination of first tilt switch 31 is in the state greater than its limit angle of inclination always; Show that then there is especially big potential safety hazard in lamp circuit, the first signal buffer unit 322 is made judgement to this, if that is: signal can be kept more than the certain hour; Then expression signal is stable; Just have especially big potential safety hazard in this case, this moment, the first signal buffer unit 322 just was delivered to signal amplification circuit 323 amplifications with this continuous signal, and sent the power supply of cut-out to main light source 1 to main light source drive circuit 2; Otherwise; If the signal that first signal acquisition circuit 321 collects is that be interrupted or accidental the appearance; Show that there is not especially big potential safety hazard in lamp circuit; So 322 of the first signal buffer units do not transmit this type signal to signal amplification circuit 323, energy supply control module 3 just can not send the action command of cut-out to the power supply of main light source 1 to main light source drive circuit 2 yet.The purpose that the first signal buffer unit 322 is set is concrete condition is made accurate judgement, avoids maloperation.
Further; Please continue referring to Fig. 1; A kind of specific embodiment as offshore platform lamp provided by the invention; Said offshore platform lamp comprises that also one is connected in the secondary light source alarm module 41 of power supply 100; Be provided with one second tilt switch 41 and an external signal Tip element 42 of serial connection successively in the said secondary light source alarm module 41, the limit angle of inclination of said second tilt switch 41 is second angle of inclination, and said second inclination angle is less than first angle of inclination of said first tilt switch 31.In the present embodiment; In the circuit of light fixture, increase by one and have second tilt switch, 41 secondary light source alarm modules 3, when there was general potential safety hazard in light fixture, the limit angle of inclination that the angle of inclination of light fixture does not reach first tilt switch was first angle of inclination; At this moment; Said energy supply control module 3 does not have any action, yet the second less tilt switch 41 of limit angle of inclination may be communicated with; When the angle of inclination of light fixture surpasses first angle of inclination; Second tilt switch 41 is communicated with; Just sound signal or optical signals etc. of the external signal Tip element 42 that then in this secondary light source alarm module 4, is provided with are pointed out the related personnel on the offshore platform intuitively; Handle so that make timely, security incident is taken precautions against in possible trouble.
Further, see also Fig. 1 again, as a kind of specific embodiment of offshore platform lamp provided by the invention, said external signal Tip element 42 comprise be connected in series with said second tilt switch 41 a secondary light source drive circuit 421 and a secondary light source 422.As light fixture, adopt optical signal to carry out fault and point out the realization property of its circuit and parts better, also have more operability; And, the sensitiveness of light is greater than the sensitiveness to sound, so excellent optical signal prompting in this module for majority; Therefore in the present embodiment, secondary light source 422 is set in this module, when tilt switch was communicated with, this secondary light source 422 just can be luminous, and there is potential safety hazard in the prompting light fixture, needs maintenance.
Further, still referring to Fig. 1, as a kind of specific embodiment of offshore platform lamp provided by the invention, said secondary light source drive circuit 421 is the stroboscopic design circuit, and said secondary light source 422 is a low-power LED light source.The stroboscopic design can improve the visual stimulus property of optical signal to the people further, and this fault-signal is come to light in the very first time more easily; Led light source has advantages such as efficient energy-saving, long service life, safe, environmental protection, so locate preferred low power led light source.
Further; See also Fig. 1 equally; As a kind of specific embodiment of offshore platform lamp provided by the invention, said offshore platform lamp also comprises a data upload module 5, and said data upload module 5 comprises successively a secondary signal Acquisition Circuit 51, a secondary signal buffer unit 52, a communication unit 53 of serial connection; Said secondary signal Acquisition Circuit 51 is connected in series with said second tilt switch 41, and the output of said communication unit 53 is connected with the host computer 200 of an acknowledge(ment) signal.In the present embodiment, the signal acquisition circuit 51 in the data upload module 5 is sent into secondary signal buffer cell 52 after collecting second tilt switch, 41 closure states in the secondary light source alarm module 4; Judge by secondary signal buffer cell 52 whether this closure state can be kept more than the certain hour; If can stablize by expression signal, then there is potential safety hazard in expression, then is uploaded to host computer 200 through communication module 53; By the situation of host computer 200 each light fixtures of collection, so that unified inspection and maintenance.
Further; See also Fig. 2 to Fig. 4; A kind of specific embodiment as offshore platform lamp provided by the invention; Said first tilt switch 31 or second tilt switch 41 comprise: a box body 43, a magnet slideway 432, a magnet 433 and a magnetosensitive switch 434, and this box body 43 has a bottom surface 431; This magnet slideway 432 has first end 4321 and second end 4322, is angle with the bottom surface 431 of said box body 43 and is arranged in the said box body 43, and said first end 4321 is connected in the bottom surface 431 of said box body 43; This magnet 433 is located in the said magnet slideway 432; This magnetosensitive switch 434 is located in the said box body 43 and near second end 4322 of said magnet slideway 432.In this specific embodiment; Tilt switch is whether to come control circuit near magnetosensitive switch 434 through the magnet of being located in the magnet slideway 432 433; When magnet 433 moves to second end 4322 near magnetosensitive switch 434 in magnet slideway 432; Magnetosensitive switch 434 is communicated with under the magnetic field effect that magnet 433 produces, and this moment, closing of circuit formed the loop; When magnet 433 moved to the other end away from magnetosensitive switch 434, magnetosensitive switch 434 broke off, and this moment, circuit was not communicated with.The mobile concrete implementation of magnet 433 in magnet slideway 432 is: 432 smooth in the magnet slideway, magnet 433 can smooth and easy slip in slideway.This tilt switch is provided with a limit angle of inclination A (the first angle of inclination A1 or the second angle of inclination A2) according to the demand of actual conditions and installs; When whole tilt switch system and horizontal line L are the parallel shape horizontal positioned; As shown in Figure 3, magnet 433 slides into first end 4321 of magnet slideway 432 automatically because of the gravity effect; Away from magnetosensitive switch 434, the effect in magnetosensitive switch 434 non-magnets 433 magnetic fields is in off-state; When the certain angle B of training equipment inclination that tilt switch is installed; When this angle B during greater than limit angle of inclination A; As shown in Figure 4; Magnet 433 slides into an end of magnetosensitive switch 434 because of the gravity effect, and magnetosensitive switch 434 forms path because of magnetic field effect internal circuit, thereby reaches the effect of operating apparatus circuit control system.The limit angle of inclination A of magnet slideway 432 can set up on their own according to the demand of different apparatuses, and the box body 43 of tilt switch is horizontal being installed on the light fixture.
Further, also see also Fig. 2 to Fig. 4, as a kind of specific embodiment of offshore platform lamp provided by the invention, said magnet slideway 433 is preferably a smooth cuboid cavity, and said magnet 432 is square, is located in the said cuboid cavity.The two poles of the earth of square magnet are bigger to the magnetic flux density in the magnetic field that the outside produces, and can guarantee to produce enough magnetic force with the magnetization of the element in the magnetosensitive switch 434 closed communicating.
Further, as a kind of specific embodiment of offshore platform lamp provided by the invention, said magnetosensitive switch 434 is a tongue tube.When magnet 433 near clarinet, the magnetic field of formation makes reed magnetization, the contact portions of reed just induces opposite polarity magnetic pole because there is a natural attraction between the sexes, when attraction during greater than the elastic force of spring, contact will adhesive; Less to a certain degree the time when magnetic force, contact is opened by the elastic force of spring, and formation is opened circuit.The more important thing is that tongue tube has following advantage: at first, dried spring passes and seals; Rare gas is arranged in the pipe, contact and atmospheric isolation, humidity does not have influence to it; Can prevent the erosion of extraneous organic vapor and dust impurity docking point, so it can almost work in any environment; Secondly, the tongue tube volume is little, and reed is gently lacked, and has intrinsic frequency, can improve the break-make speed of contact, and the time of break-make is merely 1～3ms; Moreover the contact of tongue tube has extremely low conducting resistance when the contact conducting; At last, the magnetic sensitivity that tongue tube provides has a bigger scope, and its sensitivity is higher.Therefore being applied to tongue tube in the tilt switch of offshore platform lamp is more excellent selection.Certainly, tongue tube is also replaceable to be other magneto sensor such as Hall switch etc., but its sexual valence when practicality all not as good as tongue tube.
Further, see also Fig. 2 to Fig. 4 again, as a kind of specific embodiment of offshore platform lamp provided by the invention, said tongue tube and the 433 perpendicular settings of said magnet slideway.When second end that can let magnet 433 slide into magnet slideway 432 is set like this can and tongue tube between distance near as much as possible; Let tongue tube get into the bigger zone of magnetic field flux density that magnet 432 produces, thereby effectively guarantee the contact in the tongue tube is communicated with.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. offshore platform lamp, comprise a main light source and be connected power supply and said main light source between the main light source drive circuit, it is characterized in that said main light source is a led light source; Said offshore platform lamp also comprises:
One energy supply control module, its input termination power supply, the said main light source drive circuit of output termination is used to control the work of said main light source driving circuit drives main light source;
Said energy supply control module comprises:
One control module, the said main light source drive circuit of its output termination is controlled the work of said main light source driving circuit drives main light source; And
One first tilt switch; The said power supply of its input termination; The input of the said control module of output termination; The limit inclination angle of said first tilt switch is first inclination angle, and when said light fixture device inclined angle during greater than said first inclination angle, the said control module of said first slant switch controls makes the main light source outage.
2. offshore platform lamp according to claim 1; It is characterized in that; Said control module comprises one first signal acquisition circuit, one first signal buffer unit, a signal amplification circuit of serial connection successively; The input of said first signal acquisition circuit and said first tilt switch are electrically connected, and the output of said signal amplification circuit is electrically connected with the control end of said main light source drive circuit.
3. offshore platform lamp according to claim 1; It is characterized in that; Comprise that also one is connected in the secondary light source alarm module of power supply; Be provided with one second tilt switch and an external signal Tip element of serial connection successively in the said secondary light source alarm module, the limit inclination angle of said second tilt switch is second inclination angle, and said second inclination angle is less than first inclination angle of said first tilt switch.
4. offshore platform lamp according to claim 1 is characterized in that, said external signal Tip element comprises a secondary light source drive circuit and a secondary light source that is connected in series with said second tilt switch.
5. offshore platform lamp according to claim 4 is characterized in that, said secondary light source drive circuit is the stroboscopic design circuit, and said secondary light source is a low-power LED light source.
6. offshore platform lamp according to claim 3; It is characterized in that; Also comprise a data upload module; Said data upload module comprises a secondary signal Acquisition Circuit, a secondary signal buffer unit, a communication unit of serial connection successively, and said secondary signal Acquisition Circuit is connected in series with said second tilt switch, and the output of said communication unit is connected with the host computer of an acknowledge(ment) signal.
7. offshore platform lamp according to claim 3 is characterized in that, said first tilt switch or second tilt switch comprise: a box body has a bottom surface; One magnet slideway has first end and second end, is angle with the bottom surface of said box body and is arranged in the said box body, and said first end is connected in the bottom surface of said box body; One magnet is located in the said magnet slideway; One magnetosensitive switch is located in the said box body and near second end of said magnet slideway.
8. offshore platform lamp according to claim 7 is characterized in that, said magnet slideway is a smooth cuboid cavity, and said magnet is square.
9. offshore platform lamp according to claim 7 is characterized in that, said magnetosensitive switch is a tongue tube.
10. offshore platform lamp according to claim 9 is characterized in that, said tongue tube and the perpendicular setting of said magnet slideway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110075176.XA CN102705772B (en) | 2011-03-28 | 2011-03-28 | Offshore platform lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110075176.XA CN102705772B (en) | 2011-03-28 | 2011-03-28 | Offshore platform lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102705772A true CN102705772A (en) | 2012-10-03 |
| CN102705772B CN102705772B (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110075176.XA Expired - Fee Related CN102705772B (en) | 2011-03-28 | 2011-03-28 | Offshore platform lamp |
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| Country | Link |
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| CN (1) | CN102705772B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110430648A (en) * | 2019-08-30 | 2019-11-08 | 广州广日电梯工业有限公司 | A kind of elevator shaft streetlamp energy-saving device |
| CN114423130A (en) * | 2021-12-20 | 2022-04-29 | 湖南明和光电设备有限公司 | Method for prolonging service life of bulb |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1406314A (en) * | 1972-10-03 | 1975-09-17 | Coupe N T | Tilt warning apparatus |
| CN1240899A (en) * | 1998-06-26 | 2000-01-12 | 家电宝实业有限公司 | Safeguard acting on toppling and falling of lamp and lantern |
| US20040008517A1 (en) * | 2002-07-12 | 2004-01-15 | Bixler Randall L. | Magnetically operated reed switch |
| CN2859187Y (en) * | 2005-11-08 | 2007-01-17 | 乐清市亿昊科技发展有限公司 | Portable lamp |
-
2011
- 2011-03-28 CN CN201110075176.XA patent/CN102705772B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1406314A (en) * | 1972-10-03 | 1975-09-17 | Coupe N T | Tilt warning apparatus |
| CN1240899A (en) * | 1998-06-26 | 2000-01-12 | 家电宝实业有限公司 | Safeguard acting on toppling and falling of lamp and lantern |
| US20040008517A1 (en) * | 2002-07-12 | 2004-01-15 | Bixler Randall L. | Magnetically operated reed switch |
| CN2859187Y (en) * | 2005-11-08 | 2007-01-17 | 乐清市亿昊科技发展有限公司 | Portable lamp |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110430648A (en) * | 2019-08-30 | 2019-11-08 | 广州广日电梯工业有限公司 | A kind of elevator shaft streetlamp energy-saving device |
| CN114423130A (en) * | 2021-12-20 | 2022-04-29 | 湖南明和光电设备有限公司 | Method for prolonging service life of bulb |
| CN114423130B (en) * | 2021-12-20 | 2024-03-01 | 湖南明和光电设备有限公司 | Method for prolonging service life of bulb |
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| Publication number | Publication date |
|---|---|
| CN102705772B (en) | 2014-01-08 |
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