CN104345528A - Control method of bulb fan and projection device using control method - Google Patents
Control method of bulb fan and projection device using control method Download PDFInfo
- Publication number
- CN104345528A CN104345528A CN201310344392.9A CN201310344392A CN104345528A CN 104345528 A CN104345528 A CN 104345528A CN 201310344392 A CN201310344392 A CN 201310344392A CN 104345528 A CN104345528 A CN 104345528A
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- CN
- China
- Prior art keywords
- bulb
- temperature
- fan
- control method
- drops
- Prior art date
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Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses a control method of a bulb fan and a projection device using the control method, which are used for controlling the working of the bulb fan of the projection device. The bulb fan is used for radiating the heat of a bulb. The control method comprises the following sequential steps of (1) when the bulb is changed from a working state into a closing state, driving the bulb fan to work; (b) when the temperature of the bulb is lowered to the first setting temperature, stopping the working of the bulb fan; (c) when the temperature of the bulb is lowered to the second setting temperature, driving the bulb fan to start working again; (d) when the temperature of the bulb is lowered to the lamp relighting temperature again, stopping the working of the bulb fan. The control method and the projection device have the advantages that the service life of the bulb can be prolonged, and the reliability of the projection device is improved.
Description
Technical field
The present invention relates to a kind of control method, the control method of bulb fan when espespecially a kind of bulb when projection arrangement switches to closed condition by operating condition and applicable projection arrangement thereof.
Background technology
Projector because of have volume little, be convenient for carrying and the advantages such as large picture face can be watched, use in be everlasting company's meeting and family's theater.In order to make projector, there is preferably reliability and represent the market competitiveness; how to maintain or the bulb life extending projector just for needed for one of the emphasis considered; and good bulb life is except depending on the quality bills of materials of bulb manufacturer; the heat dissipation design of bulb in projector is crucial especially; therefore a bulb fan can usually be had in projector, in order to dispel the heat to bulb.
In addition, refer to Fig. 1 and Fig. 2, wherein Fig. 1 is mercury in high-pressure sodium lamp view when being condensed in electrode, and Fig. 2 is mercury in high-pressure sodium lamp view when being condensed in interior surfaces of glass.As shown in Figures 1 and 2, the bulb 1 that the projector of current part uses is high-pressure sodium lamp, its inside with the addition of mercury 10 and some chemical substances, when under the state that bulb 1 is lighted, mercury 10 produces reaction with the chemical substance in the mode of gaseous state and bulb and carrys out continuous illumination, when projector switches to off-mode by operating condition, after bulb 1 is turned off, mercury 10 just changes liquid state (mercury adiabatic condensation temperature is 300 DEG C) into by gaseous state originally, now, as shown in Figure 1, on the electrode 11 that mercury 10 may condense on the wick being attached to bulb 1, or as shown in Figure 2, mercury 10 may condense the inside surface of the glass 12 being attached to bulb 1.And after above-mentioned condensation position depends on that bulb is turned off, electrode is first cooled to mercury adiabatic condensation temperature or glass is first cooled to mercury adiabatic condensation temperature, under affecting without external factor, the cooling velocity of electrode is in fact faster than the cooling velocity of glass, but when bulb fan still operates after bulb switches to closed condition by operating state, to dispel the heat to bulb, then the cooling velocity of glass can because of bulb fan faster than the cooling velocity of electrode.
Again in order to improve the bulb life be made up of high-pressure sodium lamp in projector, bulb is required when mercury condenses, to be condensed in completely on electrode as good, and require bulb to reach to put light temperature more just can restart, that is require after bulb is turned off along with the shutdown of projector, the temperature of bulb need cool to a temperature value, such as 100 DEG C, just again can light bulb again.
As from the foregoing, when projector switches to off-mode by operating condition, after bulb is turned off, how bulb fan carries out operating the cooling degree and cool time that have influence on bulb, and then affect the condense degree that invests on electrode and bulb of mercury and be cooled to the time span put again spent by light temperature, but at present projector all cannot make projector have to make mercury condense to invest on electrode and shorten bulb to be cooled to the advantage putting the time span spent by light temperature again for the control of bulb fan simultaneously, part projector is such as had to be when bulb is switched to closed condition by operating condition at present, namely the running of bulb fan is stopped, although this control method can make mercury because of electrode cooling velocity faster than glass cooling velocity and almost condense and invest on electrode, but it is relatively tediously long also that bulb is cooled to the time of putting again spent by light temperature, such as reach more than 8 minutes, therefore do not meet actual benefit.
Therefore, how to develop and a kind ofly improve the control method of the bulb fan of above-mentioned known technology defect and applicable projection arrangement thereof, real is the current problem in the urgent need to address of those skilled in the art.
Summary of the invention
The object of the present invention is to provide a kind of control method of bulb fan and applicable projection arrangement thereof, wherein this bulb control method for fan is when bulb is switched to closed condition by operating state, bulb fan is first driven to operate a period of time, by this bulb dispelled the heat and accelerate the cooling of bulb, then, stop the running of bulb fan, make mercury condensable in bulb on electrode, the last bulb of startup again fan, accelerate bulb to be cooled to put light temperature again to dispel the heat to bulb, projector cannot be made to have make mercury condense on attached electrode and shorten the defect that bulb is cooled to the advantage putting the time span spent by light temperature again to solve existing throwing projector for the control of bulb fan simultaneously.
For reaching above-mentioned purpose, of the present invention one comparatively broad sense implement aspect for providing a kind of control method, in order to control the bulb fan running of projection arrangement, wherein bulb fan is in order to dispel the heat to bulb, it is sequentially as follows that control method comprises step: (a), when bulb is switched to closed condition by operating state, drives the running of bulb fan; B (), when the temperature of bulb drops to the first design temperature, stops the running of bulb fan; C (), when the temperature of bulb drops to lower than the second design temperature, drives bulb fan to come into operation again; And (d) drops to lower than when putting light temperature again in the temperature of this bulb, stop the running of bulb fan.
For reaching above-mentioned purpose, of the present invention another comparatively broad sense implement aspect for providing a kind of projection arrangement, comprise: bulb; Bulb fan, in order to carry out the heat radiation of wind-force to bulb; Temperature detector, in order to detect the temperature of bulb; And controller, connect with bulb fan and temperature detector electrical, in order to the testing result according to temperature detector, control the running of bulb fan; Wherein, controller has a control method, comprises step sequentially as follows: (a), when bulb is switched to closed condition by an operating state, drives the running of bulb fan; B (), when the temperature of bulb drops to the first design temperature, stops the running of bulb fan; C (), when the temperature of bulb drops to lower than the second design temperature, drives bulb fan to come into operation again; And (d) in the temperature of bulb drop to put light temperature again time, stop the running of bulb fan.
Beneficial effect of the present invention is, bulb control method for fan of the present invention not only can make the mercury in bulb be condensed on electrode, to extend the life-span of bulb, and improves the fiduciary level of projection arrangement, and bulb can be made to be cooled to the time of putting light temperature more significantly reduce, realistic utilization benefit.
Accompanying drawing explanation
Fig. 1 is mercury in high-pressure sodium lamp view when being condensed in electrode.
Fig. 2 is mercury in high-pressure sodium lamp view when being condensed in interior surfaces of glass.
Fig. 3 is the block diagram of the projection arrangement of present pre-ferred embodiments.
Fig. 4 controls the process step of the control method of bulb fan for the controller shown in Fig. 3.
Fig. 5 is the operating state schematic diagram of the bulb fan shown in Fig. 3.
Wherein, description of reference numerals is as follows:
1: bulb
10: mercury
11: electrode
12: glass
3: projection arrangement
30: bulb
31: bulb fan
32: controller
33: temperature detector
S1 ~ S4: controller controls the process step of the control method of bulb fan
T1 ~ T5: time
Embodiment
Some exemplary embodiments embodying inventive features and advantage describe in detail in the explanation of back segment.Be understood that the present invention can have various changes in different aspects, it neither departs from scope of invention, and explanation wherein and being shown in essence when the use explained, and nand architecture is in restriction invention.
Refer to Fig. 3, it is the block diagram of the projection arrangement of present pre-ferred embodiments.As shown in Figure 3, the projection arrangement 3 of the present embodiment comprises bulb 30, bulb fan 31, controller 32 and a temperature detector 33.Wherein bulb 30 can be but is not limited to be made up of high-pressure sodium lamp.Temperature detector 33 is disposed adjacent with bulb 30, in order to detect the temperature of bulb 30.Bulb fan 31 is in order to carry out the heat radiation of wind-force mode to bulb 30.Controller 32 is electrically connected with bulb fan 31 and temperature detector 33, and it is according to the testing result of temperature detector 33, and whether the corresponding bulb fan 31 that controls operates.
Below the controller 32 further illustrated shown in Fig. 3 is controlled the process step of the control method of bulb fan 31.Refer to Fig. 4 and Fig. 5, wherein Fig. 4 controls the process step of the control method of bulb fan for the controller shown in Fig. 3, and Fig. 5 is the operating state schematic diagram of the bulb fan 31 shown in Fig. 3.As shown in Figures 4 and 5, first, when projection arrangement 3 is operating state, such as, time between the time T1 ~ T2 shown in Fig. 5, bulb 30 is operating state, and now bulb fan 31 is running, to dispel the heat to bulb 30.When in time T2, projection arrangement 3 switches to closed condition by operating state, when making bulb 30 also switch to closed condition by operating state, controller 32 just starts to perform a control method, that is as shown in Figure 4, first, perform step S1, namely when bulb 30 is switched to closed condition by operating state, controller 32 drives bulb fan 31 to operate.In this step, when bulb 30 is switched to closed condition by operating state, the temperature of bulb 30 is essentially 948 DEG C, this Time Controller 32 drives bulb fan 31 to operate, therefore the temperature of bulb 30 can be accelerated because of fan 31 to decline, minimizing bulb 30 drops to and puts light temperature again, such as 100 DEG C, the spent time by this.
Then, perform step S2, namely the temperature in bulb 30 drops to one first design temperature, such as when time T3 shown in Fig. 5, drop to the first design temperature, controller 32 just can stop bulb fan 31 to operate according to the testing result of temperature detector 33, and wherein the first design temperature is essentially 515 DEG C.In order to avoid in step sl, because of bulb fan 31 continuous running, cause the temperature of the glass of bulb 30 also will drop to the adiabatic condensation temperature of mercury rapidly than the electrode of bulb 30, namely 300 DEG C, mercury is made to be condensed on glass, but not on electrode, therefore step S2 is when the temperature of bulb 30 is about to the adiabatic condensation temperature dropping to mercury, first stop the running of bulb fan 31, thus, when the temperature of bulb 30 drops to the first design temperature, just can change by electrode under affecting without external force, the characteristic that its temperature decline degree is also faster than glass, the temperature of the comparable glass of the temperature of electrode is made also to drop to the adiabatic condensation temperature of mercury soon, therefore mercury just condensable on electrode.
Then step S3 is performed, namely the temperature in bulb 30 drops to lower than one second design temperature, such as be brought down below the second design temperature at present in the time T4 shown in Fig. 5, controller 32 just can drive bulb fan 31 again to operate according to the testing result of temperature detector 33, wherein the second design temperature is essentially 300 DEG C, that is equals the adiabatic condensation temperature of mercury.In this step, temperature due to bulb 30 is reduced to down the adiabatic condensation temperature of mercury, represent mercury to condense, and be condensed in because of step S1 on electrode, therefore in order to again strengthen the temperature decline efficiency of bulb 30, bulb 30 can be reached more rapidly and put light temperature again, in this step, controller 32, just when the temperature of bulb 30 drops to lower than the second design temperature, drives bulb fan 31 to come into operation again.
Finally perform step S4, the temperature namely in bulb 30 drops to lower than putting light temperature again and again, and be such as brought down below at present in the time T5 shown in Fig. 5 and put light temperature again, controller 32 just can stop bulb fan 31 to operate according to the testing result of temperature detector 33.In this step, when the temperature of bulb 30 dropped to lower than put light temperature again and can again by lighting time, just need not be dispelled the heat by bulb fan 31 again, therefore controller 32 drives bulb fan 31 to decommission.By above-mentioned control method, the mercury in bulb 30 not only can be made to be condensed on electrode, and still optionally operate after bulb 30 switches to closed condition by operating state because of bulb fan 31, therefore significantly can reduce bulb 3 and be cooled to the time spent when putting light temperature again.
In above-described embodiment, time T2 is essentially 20 seconds to time T3, and time T3 is essentially 70 seconds to time T4, and time T4 is essentially 80 seconds to time T5.
In sum, the invention provides a kind of bulb control method for fan of projection arrangement and applicable projection arrangement thereof, wherein bulb control method for fan is when bulb is switched to closed condition by operating state, bulb fan is first driven to operate a period of time, by this bulb dispelled the heat and accelerate the cooling of bulb, then, stop the running of bulb fan, make mercury condensable in bulb on electrode, the last bulb of startup again fan, accelerate bulb to be cooled to put light temperature again to dispel the heat to bulb, thus, the mercury in bulb not only can be made to be condensed on electrode, to extend the life-span of bulb, and improve the fiduciary level of projection arrangement, and bulb can be made to be cooled to the time of putting light temperature more significantly reduce, realistic utilization benefit.
The present invention can be appointed by those skilled in the art and executes craftsman and to think and for modifying as all, so neither de-as right institute wish Protector.
Claims (7)
1. a control method, in order to control a bulb fan running of this projection arrangement, wherein this bulb fan is in order to dispel the heat to a bulb, and it is sequentially as follows that this control method comprises step:
A (), when this bulb is switched to a closed condition by an operating state, drives this bulb fan to operate;
B (), when the temperature of this bulb drops to first design temperature, stops this bulb fan to operate;
C (), when the temperature of this bulb drops to lower than second design temperature, drives this bulb fan to come into operation again; And
D () drops to lower than when putting light temperature again and again in the temperature of this bulb, stop this bulb fan to operate.
2. control method as claimed in claim 1, wherein this bulb is high-pressure sodium lamp.
3. control method as claimed in claim 1, wherein in step (a), when this bulb is switched to this closed condition by this operating state, the temperature of this bulb is 948 DEG C.
4. control method as claimed in claim 1, wherein in step (a), when this bulb is this operating state, this bulb fan operates.
5. control method as claimed in claim 1, wherein this first design temperature is 515 DEG C, and this second design temperature is 300 DEG C, and this puts light temperature is again 100 DEG C.
6. control method as claimed in claim 1, wherein this second design temperature equals the adiabatic condensation temperature of the mercury in this bulb.
7. a projection arrangement, comprises:
One bulb:
One bulb fan, in order to carry out the heat radiation of wind-force to this bulb;
One temperature detector, in order to detect the temperature of this bulb; And
One controller, connects with this bulb fan and this temperature detector electrical, in order to the testing result according to this temperature detector, controls the running of this bulb fan;
Wherein, this controller has a control method, comprises step sequentially as follows:
A (), when this bulb is switched to a closed condition by an operating state, drives this bulb fan to operate;
B (), when the temperature of this bulb drops to first design temperature, stops this bulb fan to operate;
C (), when the temperature of this bulb drops to lower than second design temperature, drives this bulb fan to come into operation again; And
D (), when the temperature of this bulb drops to again and again some light temperature, stops this bulb fan to operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310344392.9A CN104345528A (en) | 2013-08-08 | 2013-08-08 | Control method of bulb fan and projection device using control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310344392.9A CN104345528A (en) | 2013-08-08 | 2013-08-08 | Control method of bulb fan and projection device using control method |
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| Publication Number | Publication Date |
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| CN104345528A true CN104345528A (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310344392.9A Pending CN104345528A (en) | 2013-08-08 | 2013-08-08 | Control method of bulb fan and projection device using control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110865506A (en) * | 2018-08-27 | 2020-03-06 | 佳能株式会社 | Light source device and image projection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030227765A1 (en) * | 2002-06-06 | 2003-12-11 | Kabushiki Kaisha Toshiba | Projector, lamp lighting circuit and lamp lighting control method |
| US6966652B1 (en) * | 2002-11-15 | 2005-11-22 | Benq Corporation | Method and apparatus for cooling control |
| JP2005338213A (en) * | 2004-05-25 | 2005-12-08 | Iwasaki Electric Co Ltd | Device and method for cooling high-pressure discharge lamp |
| CN1811587A (en) * | 2005-01-27 | 2006-08-02 | 戴尔产品有限公司 | System and method for intelligent information handling system projector cool down |
| JP2008198468A (en) * | 2007-02-13 | 2008-08-28 | Funai Electric Co Ltd | Light source device |
| CN101365327A (en) * | 2007-08-09 | 2009-02-11 | 鸿富锦精密工业（深圳）有限公司 | Fan cooling system |
| CN101373315A (en) * | 2007-08-21 | 2009-02-25 | 佳世达科技股份有限公司 | Projector and method for cooling light source module discharging part |
-
2013
- 2013-08-08 CN CN201310344392.9A patent/CN104345528A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030227765A1 (en) * | 2002-06-06 | 2003-12-11 | Kabushiki Kaisha Toshiba | Projector, lamp lighting circuit and lamp lighting control method |
| US6966652B1 (en) * | 2002-11-15 | 2005-11-22 | Benq Corporation | Method and apparatus for cooling control |
| JP2005338213A (en) * | 2004-05-25 | 2005-12-08 | Iwasaki Electric Co Ltd | Device and method for cooling high-pressure discharge lamp |
| CN1811587A (en) * | 2005-01-27 | 2006-08-02 | 戴尔产品有限公司 | System and method for intelligent information handling system projector cool down |
| JP2008198468A (en) * | 2007-02-13 | 2008-08-28 | Funai Electric Co Ltd | Light source device |
| CN101365327A (en) * | 2007-08-09 | 2009-02-11 | 鸿富锦精密工业（深圳）有限公司 | Fan cooling system |
| CN101373315A (en) * | 2007-08-21 | 2009-02-25 | 佳世达科技股份有限公司 | Projector and method for cooling light source module discharging part |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110865506A (en) * | 2018-08-27 | 2020-03-06 | 佳能株式会社 | Light source device and image projection device |
| CN110865506B (en) * | 2018-08-27 | 2022-02-01 | 佳能株式会社 | Light source device and image projection device |
| US11418763B2 (en) | 2018-08-27 | 2022-08-16 | Canon Kabushiki Kaisha | Light source apparatus and image projection apparatus |
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Application publication date: 20150211 |