CN104023459A - Heating control method of metal halid lamp and metal halid lamp - Google Patents
Heating control method of metal halid lamp and metal halid lamp Download PDFInfo
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- CN104023459A CN104023459A CN201410192404.5A CN201410192404A CN104023459A CN 104023459 A CN104023459 A CN 104023459A CN 201410192404 A CN201410192404 A CN 201410192404A CN 104023459 A CN104023459 A CN 104023459A
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- luminous tube
- tube device
- heating
- temperature
- metal halid
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 82
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 51
- 239000002184 metal Substances 0.000 title claims abstract description 51
- 125000005843 halogen group Chemical group 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012806 monitoring device Methods 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000005855 radiation Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 description 5
- 150000002367 halogens Chemical class 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 3
- 208000003351 Melanosis Diseases 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
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- Control Of Resistance Heating (AREA)
Abstract
The invention provides a heating control method of a metal halid lamp. According to the method, the temperature of the metal halid lamp is controlled through heating when the metal halid lamp is turned on or turned off, rapid changes of the temperature of the metal halid lamp are reduced when the metal halid lamp is turned on or turned off, and the service life of the metal halid lamp is prolonged. The invention further discloses the metal halid lamp.
Description
Technical field
The present invention relates to lighting technical field, particularly a kind of method for heating and controlling of metal halid lamp and metal halid lamp.
Background technology
The operation principle of projecting apparatus bulb is different from common bulb, and it is to rely on electrode electron emission, activates the materials such as the interior halogen of filling of bulb or high-pressure mercury and comes luminous.During electrode electron emission, very strict to the demand of temperature.Current most of projector is used metal halid lamp (Metal Halide), when illuminating state, and bulb side voltage 60-80V left and right, in bulb, gas pressure is greater than 10kg/cm, and temperature has thousands of degree, and filament is in fritting state.The fluctuation of temperature, can make bulb internal pressure sharply change, thereby makes the filament work under fritting state become very unstable.In the process that bulb starts, the temperature in bulb is more than (in about a few minutes) sharply rise to thousand degree of stable state from room temperature at short notice, and this variation is quite violent, and the phenomenons such as quick-fried lamp, flicker happen occasionally.Bulb, in switching process frequently, also easily causes filament distortion, thereby causes brightness and life-span sharply to decline.
Summary of the invention
Based on this, be necessary to provide a kind of method for heating and controlling that sharply change metal halid lamp of bulb temperature in startup or closing process that reduce.
A method for heating and controlling for metal halid lamp, comprises step:
Luminous tube device is preheated;
The temperature of described luminous tube device is more than or equal to the first preset temperature, or the time that preheats reach after the first default duration, stop heating;
Start described luminous tube device;
And/or comprise step:
Close luminous tube device;
When the temperature of described luminous tube device is less than or equal to the second preset temperature, or luminous tube device closes and reaches after the second default duration, and described luminous tube device is carried out to rear heating;
When the temperature of described luminous tube device is less than or equal to the 3rd preset temperature, or reach rear heating time after the 3rd default duration, stop heating.
Therein in an embodiment, described in preheat or the mode of heating of heating is afterwards firm power heating.
Therein in an embodiment, described in preheat or the mode of heating of heating is afterwards gradual change power heating.
In an embodiment, the temperature of described luminous tube device is more than or equal to the first preset temperature therein, or the time that preheats reach after the first default duration, the electrode of described luminous tube device approaches or reaches ionized state.
In an embodiment, during described luminous tube device work, if the temperature of described heating tube element is less than or equal to the 4th preset temperature, described luminous tube device is heated therein; If when heating makes the temperature of described luminous tube device be more than or equal to the 5th preset temperature, stop heating.
A metal halid lamp, comprises luminous tube device, also comprises heater and monitoring device;
Described heater preheats described luminous tube device before starting for described luminous tube device, whether described monitoring device is more than or equal to the first preset temperature for the temperature of monitoring described luminous tube device or whether the time that preheats reaches the first default duration, if described heater stop heats described luminous tube device; And/or
Described monitoring device cuts out for monitoring above-mentioned luminous tube device whether the temperature of rear described luminous tube device is less than or equal to the second preset temperature or described luminous tube device closes whether reach the second default duration, if described heater carries out rear heating to described luminous tube device, whether the temperature that after this described monitoring device continues on for monitoring described luminous tube device is less than or equal to the 3rd preset temperature or whether reaches the 3rd default duration rear heating time, if described heater stop heats described luminous tube device.
In an embodiment, described monitoring device comprises temperature sensor therein.
In an embodiment, described heater is hot water radiation wire therein.
In an embodiment, described heater is arranged on the anodic filament post of described luminous tube device therein.
In an embodiment, described metal halid lamp also comprises Lamp cup therein, and described Lamp cup is for reflecting the light that described luminous tube device sends, and described heater is arranged on the edge of described Lamp cup.
The method for heating and controlling of above-mentioned metal halid lamp and metal halid lamp, by heating, the metal halogen light temperature in metal halid lamp startup or closing process is controlled, reduce the sharply variation of metal halogen light temperature in startup or closing process, improve the metal halid lamp life-span.
Accompanying drawing explanation
Fig. 1 is the wherein flow chart of an embodiment of the present invention;
Fig. 2 is the flow chart of another embodiment of the present invention;
Fig. 3 is the side cross-sectional schematic of one embodiment of the invention metal halid lamp;
Fig. 4 is one embodiment of the invention luminous tube device schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
The present invention can be applied in projector apparatus, and it is example that embodiment be take the metal halid lamp of 230W power.
Fig. 1 is the flow chart of one embodiment of the invention, and this embodiment has disclosed the method for heating and controlling before starting metal halid lamp, incorporated by reference to Fig. 3 and Fig. 4.
A method for heating and controlling for metal halid lamp, comprises step:
Step S110: start before luminous tube device 100, luminous tube device 100 is preheated.Luminous tube device comprises luminous tube 110, anodic filament post 120, cathode filament post 130 and electrode junction 140.Heater 200 is arranged on the anodic filament post 120 of luminous tube device 100 and on the edge of taper Lamp cup 300, is respectively 120 heating of anodic filament post and heats for the speculum inwall 310 of taper Lamp cup 300, the interior air of taper Lamp cup 300, cathode filament post 130 and electrode binding site 140.The mode of heating can be the heating of firm power formula, can be also the heating of gradual change power formula, and for example power reduces the heating of formula gradually.Heater is hot water radiation wire in the present embodiment, can around be arranged on anodic filament post 120 and the edge of taper Lamp cup 300 on.Two heaters, all do not block light path, thus on brightness without impact.
Step S120: whether the temperature that judges luminous tube device 100 is more than or equal to the first preset temperature or whether the time that preheats reaches the first default duration, if skip to step S130, skips to if not step S110.For the control of heating, can be to take temperature as benchmark, can be also to take time span as benchmark.For example, take temperature as benchmark, need temperature sensor (not shown) to detect the temperature of some positions of luminous tube device 100 or Lamp cup 300.Temperature sensor can be arranged at luminous tube 110, anodic filament post 120, cathode filament post 130 and the electrode junction 140 of luminous tube device 100, detects respectively the temperature of this position, when this position reaches after preset temperature, stops heating.Temperature sensor can be arranged on a wherein place, or many places, by demand, determines.The preset temperature of luminous tube 110 can be between 300 ℃ to 400 ℃, the preset temperature of anodic filament post 120 can be 300 ℃ of left and right, the preset temperature of cathode filament post 130 can be between 350 ℃ to 400 ℃, and the preset temperature of electrode junction 140 can be between 300 ℃ to 350 ℃.In this step, the speculum inwall 310 of rationally monitoring taper Lamp cup 300 and the temperature of optical lens 400.Each above-mentioned position preset temperature should be lower than the working temperature of this position.
Again for example, take the time as benchmark, now can not need temperature sensor.First determine that mode of heating is firm power heating or gradual change heating, the required time when being then determined by experiment above-mentioned position and reaching above-mentioned preset temperature, then by the default duration of region normal-temperature and the above-mentioned position of error calculative determination in combination.The mode of heating of for example having determined firm power heating, luminous tube 110 has reached 300 ℃ under this mode of heating in 3 minutes, thereby can set the first default duration, is 3 minutes.Like this, just can in the situation that saving temperature sensor, realize the control of temperature.
In the present embodiment, the temperature of luminous tube device 100 is more than or equal to the first preset temperature or the time that preheats reaches after the first default duration, the electrode of luminous tube device 100 should approach or reach ionized state, now, the electrode of luminous tube device 100 has been preheating to the temperature needing, electrode is electron emission very easily, no longer because temperature is low, damage electrode, can not cause because variations in temperature is violent bulb flicker yet, alleviate luminous tube 110 from the violent variations in temperature of normal temperature to 900 ℃, improved stability and reliability when bulb starts.
Step S130: stop heating, normally start luminous tube device 100.The optimum working temperature of luminous tube 110 is 900 ℃ of left and right, the optimum working temperature of anodic filament post 120 is 330 ℃ of left and right, the optimum working temperature of cathode filament post 130 is 420 ℃ of left and right, the optimum working temperature of electrode junction 140 is 370 ℃ of left and right, and the optimum working temperature of the speculum inwall 310 of taper Lamp cup 300 is 450 ℃ of left and right.
Fig. 2 is the flow chart of another embodiment of the present invention, is to be described in the method for heating and controlling of closing after metal halid lamp.Incorporated by reference to Fig. 3 and Fig. 4.
A method for heating and controlling for metal halid lamp, comprises step:
Step S210: close luminous tube device 100.
Step S220: the metal halid lamp that has comprised luminous tube device 100 is carried out to natural heat dissipation or active heat removal.This step can be natural heat radiation, also can to luminous tube device 100, carry out active heat removal by heat abstractor.
Step S230: whether the temperature that judges luminous tube device 100 is more than or equal to the second preset temperature or whether 100 shut-in times of luminous tube device reach the second default duration, if skip to step S240, skips to if not step S220.The second preset temperature of this step or through the first preset temperature of the second default duration and step S120 or to preset through first factor that duration will consider consistent, its basic object is exactly the temperature generation drastic change for fear of luminous tube device 100.The second preset temperature can equal the first preset temperature.
Step S240: luminous tube device 100 is carried out to rear heating.Temperature generation drastic change for fear of luminous tube device 100, so luminous tube device 100 is heated, luminous tube device 100 temperature are slowly reduced, the temperature of luminous tube 110 inside is slowly reduced, to prevent that between luminous tube 110 tube walls and filament, the temperature difference causes too greatly luminous tube 110 melanism.
Step S250: whether whether the temperature that judges luminous tube device 100 be more than or equal to the 3rd preset temperature or 100 shut-in times of luminous tube device through the 3rd default duration, if skip to step S260, skips to if not step S240.S120 is similar with step, and the 3rd preset temperature or can draw best number range according to experiment through the 3rd default duration, when luminous tube device 100 slow coolings are when approaching normal temperature, just can skip to step S260.
Step S260: stop heating.
In metal halid lamp course of normal operation, if the temperature of heat-generating pipe 110, lower than the 4th preset temperature, can heat luminous tube device 100; When the temperature of luminous tube device 100 is more than or equal to the 5th preset temperature, stop heating.By temperature sensor, monitor in real time metal halid lamp internal temperature, when causing heat-generating pipe 110 supercooling because ambient temperature is low, for heat-generating pipe 110 provides heat, guarantee heat-generating pipe 110 normal working temperatures, reduce the possibility of bulb melanism.The 4th preset temperature is the minimum operating temperature that cannot accept of heat-generating pipe 110; The 5th preset temperature can be the acceptable working temperature of heat-generating pipe 110, for example 900 ℃ of left and right.
See Fig. 3 and Fig. 4, a kind of metal halid lamp, comprises luminous tube device 100, heater 200, Lamp cup 300, optical lens 400 and monitoring device (not shown).The light that Lamp cup 300 sends for reflecting luminous tube device 100.
Start before luminous tube device 100, heater 200 is for preheating luminous tube device 100, monitoring device for the temperature of monitoring luminous tube device 100, whether be more than or equal to the first preset temperature or the time that preheats whether through the first default duration, if heater 200 stops luminous tube device 100 to heat.
Close after luminous tube device 100, monitoring device whether is more than or equal to the second preset temperature for the temperature of monitoring luminous tube device 100 or whether 100 shut-in times of luminous tube device reach the second default duration, if heater 200 is for carrying out rear heating to luminous tube device 100, whether the temperature that after this monitoring device continues on for monitoring luminous tube device 100 is more than or equal to the 3rd preset temperature or whether reaches the 3rd default duration rear heating time, if heater 200 stops luminous tube device 100 to heat.
Heater 200 is arranged on the anodic filament post 120 of luminous tube device 100 and on the edge of taper Lamp cup 300, is respectively 120 heating of anodic filament post and heats for the speculum inwall 310 of taper Lamp cup 300, the interior air of taper Lamp cup 300, cathode filament post 130 and electrode binding site 140.The mode of heating can be the heating of firm power formula, can be also the heating of gradual change power formula, and for example power reduces the heating of formula gradually.Heater is hot water radiation wire in the present embodiment, can around be arranged on anodic filament post 120 and the edge of taper Lamp cup 300 on.Two heaters, all do not block light path, thus on brightness without impact.
Luminous tube device 100 reaches the first preset temperature or after the first default duration, heater 200 stops for luminous tube device 100 is heated.For the control of heating, can be to take temperature as benchmark, can be also to take time span as benchmark.For example, take temperature as benchmark, need temperature sensor (monitoring device, figure does not show) to detect the temperature of some positions of luminous tube device 100 or Lamp cup 300.Temperature sensor can be arranged at luminous tube 110, anodic filament post 120, cathode filament post 130 and the electrode junction 140 of luminous tube device 100, detects respectively the temperature of this position, when this position reaches after preset temperature, stops heating.Temperature sensor can be arranged on a wherein place, or many places, by demand, determines.
Again for example, take the time as benchmark, now can not need temperature sensor.First determine that mode of heating is firm power heating or gradual change heating, the required time when being then determined by experiment above-mentioned position and reaching above-mentioned preset temperature, then by the default duration of region normal-temperature and the above-mentioned position of error calculative determination in combination.The mode of heating of for example having determined firm power heating, luminous tube 110 has reached 300 ℃ under this mode of heating in 3 minutes, thereby can set the first default duration, is 3 minutes.Like this, just can in the situation that saving temperature sensor, realize the control of temperature.
The method for heating and controlling of above-mentioned metal halid lamp and metal halid lamp, by heating, the metal halogen light temperature in metal halid lamp startup or closing process is controlled, reduce the sharply variation of metal halogen light temperature in startup or closing process, improve the metal halid lamp life-span.
The above embodiment has only expressed several execution mode 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 range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a method for heating and controlling for metal halid lamp, is characterized in that, comprises step:
Luminous tube device is preheated;
The temperature of described luminous tube device is more than or equal to the first preset temperature, or the time that preheats reach after the first default duration, stop heating;
Start described luminous tube device;
And/or comprise step:
Close luminous tube device;
When the temperature of described luminous tube device is less than or equal to the second preset temperature, or luminous tube device closes and reaches after the second default duration, and described luminous tube device is carried out to rear heating;
When the temperature of described luminous tube device is less than or equal to the 3rd preset temperature, or reach rear heating time after the 3rd default duration, stop heating.
2. the method for heating and controlling of metal halid lamp according to claim 1, is characterized in that, described in preheat or the mode of heating of heating is afterwards firm power heating.
3. the method for heating and controlling of metal halid lamp according to claim 1, is characterized in that, described in preheat or afterwards heating mode of heating be gradual change power heating.
4. the method for heating and controlling of metal halid lamp according to claim 1, it is characterized in that, the temperature of described luminous tube device is more than or equal to the first preset temperature, or the time that preheats reach after the first default duration, the electrode of described luminous tube device approaches or reaches ionized state.
5. the method for heating and controlling of metal halid lamp according to claim 1, is characterized in that, during described luminous tube device work, if the temperature of described heating tube element is less than or equal to the 4th preset temperature, described luminous tube device is heated; If when heating makes the temperature of described luminous tube device be more than or equal to the 5th preset temperature, stop heating.
6. a metal halid lamp, comprises luminous tube device, it is characterized in that, also comprises heater and monitoring device;
Described heater preheats described luminous tube device before starting for described luminous tube device, whether described monitoring device is more than or equal to the first preset temperature for the temperature of monitoring described luminous tube device or whether the time that preheats reaches the first default duration, if described heater stop heats described luminous tube device; And/or
Described monitoring device cuts out for monitoring above-mentioned luminous tube device whether the temperature of rear described luminous tube device is less than or equal to the second preset temperature or described luminous tube device closes whether reach the second default duration, if described heater carries out rear heating to described luminous tube device, whether the temperature that after this described monitoring device continues on for monitoring described luminous tube device is less than or equal to the 3rd preset temperature or whether reaches the 3rd default duration rear heating time, if described heater stop heats described luminous tube device.
7. metal halid lamp according to claim 6, is characterized in that, described monitoring device comprises temperature sensor.
8. metal halid lamp according to claim 6, is characterized in that, described heater is hot water radiation wire.
9. metal halid lamp according to claim 6, is characterized in that, described heater is arranged on the anodic filament post of described luminous tube device.
10. metal halid lamp according to claim 6, is characterized in that, described metal halid lamp also comprises Lamp cup, and described Lamp cup is for reflecting the light that described luminous tube device sends, and described heater is arranged on the edge of described Lamp cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192404.5A CN104023459A (en) | 2014-05-08 | 2014-05-08 | Heating control method of metal halid lamp and metal halid lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192404.5A CN104023459A (en) | 2014-05-08 | 2014-05-08 | Heating control method of metal halid lamp and metal halid lamp |
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| CN104023459A true CN104023459A (en) | 2014-09-03 |
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| CN201410192404.5A Pending CN104023459A (en) | 2014-05-08 | 2014-05-08 | Heating control method of metal halid lamp and metal halid lamp |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1179076A (en) * | 1996-09-06 | 1998-04-15 | 松下电器产业株式会社 | Metal halide lamp and its temperature control system |
| WO2007031545A2 (en) * | 2005-09-16 | 2007-03-22 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | High pressure discharge lamp with discharge chamber |
| CN101313634A (en) * | 2005-11-01 | 2008-11-26 | 精工爱普生株式会社 | Projector, and lighting method of light source unit of projector |
| CN201682651U (en) * | 2010-04-15 | 2010-12-22 | 厦门通士达照明有限公司 | Innovative energy-saving lamp |
-
2014
- 2014-05-08 CN CN201410192404.5A patent/CN104023459A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1179076A (en) * | 1996-09-06 | 1998-04-15 | 松下电器产业株式会社 | Metal halide lamp and its temperature control system |
| WO2007031545A2 (en) * | 2005-09-16 | 2007-03-22 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | High pressure discharge lamp with discharge chamber |
| CN101313634A (en) * | 2005-11-01 | 2008-11-26 | 精工爱普生株式会社 | Projector, and lighting method of light source unit of projector |
| CN201682651U (en) * | 2010-04-15 | 2010-12-22 | 厦门通士达照明有限公司 | Innovative energy-saving lamp |
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