CN101004544A - Dust guard, and projector possessing the dust guard - Google Patents
Dust guard, and projector possessing the dust guard Download PDFInfo
- Publication number
- CN101004544A CN101004544A CN 200610005071 CN200610005071A CN101004544A CN 101004544 A CN101004544 A CN 101004544A CN 200610005071 CN200610005071 CN 200610005071 CN 200610005071 A CN200610005071 A CN 200610005071A CN 101004544 A CN101004544 A CN 101004544A
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- CN
- China
- Prior art keywords
- fan
- temperature inductor
- dust guard
- temperature
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A dustproof device of projector is prepared for setting fan and filtering screen (FS) in shell and the first temperature transducer (FTT) at external of shell for detecting temperature at external of shell as well as the second temperature transducer (STT) at internal of shell for detecting temperature at internal of shell, connecting controller of circuit board separately to fan and two said temperature transducers for raising rotary speed of fan when detected value of FTT is greater than that of STT, electric-connecting alarm unit to said controller for warning that said FS should be changed when voltage value of fan is greater than a certain value.
Description
Technical field
The present invention relates to a kind of dust guard and have the projector of this dust guard, particularly relate to a kind of dust guard with screen replacing display mechanism.
Background technology
Many electronic installations (for example, projector) can generate heat when manipulating, and therefore need cross-ventilation for cooling, but airborne sometimes fine particle (for example, dust) can be inhaled into device inside, cause the impaired of device, therefore need dust guard with the fine particle in the secluding air.
Fig. 1 is provided with filter screen 12 for the synoptic diagram of existing dust guard 10 at the air intake vent 11a place of casing 11, and the device 1 that in casing 11, is provided with fan 13 and need be cooled, fan 13 drives air A and flows, but and the particle P among the filter screen 12 filtered air A.Yet filter screen 12 can cause obstruction because of particle P, and then causes air A convection current to reduce, and therefore need regularly change filter screen 12.
Yet existing dust guard does not have the screen replacing display mechanism, and this makes the user can't grasp correct opportunity and changes filter screen.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of dust guard, it has the screen replacing display mechanism.
According to the present invention, a kind of dust guard is provided, in order to taking in an electronic installation in wherein, and comprise a housing, a filter screen, a fan, one first temperature inductor, one second temperature inductor, a circuit board and a warning device; Wherein filter screen and fan are arranged in the housing, and first temperature inductor is arranged at outside the housing, and with the temperature of detecting outside, second temperature inductor is arranged in the housing, with the temperature of detecting enclosure interior; Circuit board has a controller, be electrically connected with fan, first temperature inductor and second temperature inductor respectively, when the detecting value of second temperature inductor during greater than the detecting value of first temperature inductor, controller increases the magnitude of voltage of fan to improve rotation speed of the fan; Warning device and controller electrically connect, and when the magnitude of voltage of fan during greater than a critical value, warning device is moved, and need be replaced with the caution filter screen.
Will be appreciated that controller reduces the magnitude of voltage of fan to reduce rotation speed of the fan when the detecting value of second temperature inductor during less than the detecting value of first temperature inductor.
Again, first temperature inductor and second temperature inductor can be respectively a thermistor, and warning device can be an emergency warning lamp or a voice device.
Again in the present invention, provide a kind of projector, comprise an above-mentioned dust guard and a projection module, wherein projection module is arranged in the dust guard.
For above and other objects of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended diagram, be described in detail below.
Description of drawings
Fig. 1 is the synoptic diagram of existing dust guard;
Fig. 2 is the synoptic diagram of dust guard of the present invention; And
Fig. 3 is the action flow chart of the screen replacing mechanism of dust guard of the present invention.
Symbol description:
1 device
10 dust guards
11 casings
The 11a air intake vent
12 filter screens
13 fans
20 dust guards
21 housings
The 21a air port
22 fans
23 filter screens
24 first temperature inductors
25 second temperature inductors
26 circuit boards
The 26a controller
27 warning devices
30 projection modules
Embodiment
With reference to figure 2, dust guard 20 of the present invention is in order to taking in an electronic installation 30 in wherein, and comprises a housing 21, a fan 22, a filter screen 23, one first temperature inductor 24, one second temperature inductor 25, a circuit board 26 and a warning device 27.
Will be appreciated that above-mentioned electronic installation 30 can be a projection module, and constitute a projector with dust guard 20.
Describe the operating state of the screen replacing mechanism on the dust guard 20 in detail below with reference to Fig. 3.
At first, first temperature inductor 24 and second temperature inductor 25 are responded to its environment temperature of living in respectively, and the temperature signal of its induction passed to controller 26a on the circuit board 26, when the temperature of second temperature inductor, 25 inductions can't be consistent with the temperature that first temperature inductor 24 is responded to and during the temperature responded to greater than first temperature inductor 24, controller 26a promptly increases the magnitude of voltage of fan 22 so that rotation speed of the fan is accelerated, and then reaches outside consistent with the temperature of the inside target of dust guard 20; On the contrary, when temperature that the temperature of second temperature inductor 25 induction is responded to less than first temperature inductor 24, controller 26a promptly reduce fan 22 magnitude of voltage so that rotation speed of the fan slow down; Again, when dust is more filled in the more because of being filtered by filter screen 23, because dust guard 20 temperature inside continue to rise, the fan 23 of dust guard 20 inside needs higher driven to reach higher rotating speed, even when dust guard 20 temperature inside greatly to the voltage of fan 22 greater than its critical value also can't be consistent the time with external temperature, this moment, warning device 27 was moved, and needed to change filter screen 22.
As above-mentioned,, can make screen replacing more correct opportunity because dust guard of the present invention has the screen replacing display mechanism.
Though disclosed the present invention in conjunction with above preferred embodiment; yet it is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; can do some change and retouching, so protection scope of the present invention should be with being as the criterion that claim was defined.
Claims (6)
1. dust guard in order to taking in an electronic installation in wherein, and comprises:
One housing;
One fan is arranged in this housing;
One filter screen is arranged at this housing;
One first temperature inductor is arranged at outside this housing, to detect the temperature of this outside;
One second temperature inductor is arranged in this housing, to detect the temperature of this enclosure interior;
One circuit board, has a controller, be electrically connected with this fan, this first temperature inductor and this second temperature inductor respectively, wherein when the detecting value of this second temperature inductor during greater than the detecting value of this first temperature inductor, this controller improves the magnitude of voltage of this fan to improve rotation speed of the fan; And
One warning device is electrically connected with this controller, and wherein when the magnitude of voltage of this fan during greater than a critical value, this warning device is moved, and need be replaced to warn this filter screen.
2. dust guard as claimed in claim 1, wherein when the detecting value of this second temperature inductor during less than the detecting value of this first temperature inductor, this controller reduces the magnitude of voltage of this fan to reduce rotation speed of the fan.
3. dust guard as claimed in claim 1, wherein this second temperature inductor is a thermistor.
4. dust guard as claimed in claim 3, wherein this first temperature inductor is a thermistor.
5. dust guard as claimed in claim 1, wherein this warning device is an emergency warning lamp.
6. dust guard as claimed in claim 1, wherein this warning device is a voice device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610005071 CN101004544A (en) | 2006-01-17 | 2006-01-17 | Dust guard, and projector possessing the dust guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610005071 CN101004544A (en) | 2006-01-17 | 2006-01-17 | Dust guard, and projector possessing the dust guard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101004544A true CN101004544A (en) | 2007-07-25 |
Family
ID=38703777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610005071 Pending CN101004544A (en) | 2006-01-17 | 2006-01-17 | Dust guard, and projector possessing the dust guard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101004544A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009039713A1 (en) * | 2007-09-25 | 2009-04-02 | Chiwai Patrick Poon | A self-alarming air cleaner |
| CN101369094B (en) * | 2007-08-17 | 2010-10-13 | 精工爱普生株式会社 | Projector |
| CN102004381A (en) * | 2009-08-27 | 2011-04-06 | 日立民用电子株式会社 | Projection display device |
| CN101576702B (en) * | 2008-05-08 | 2011-06-15 | 三洋科技中心(深圳)有限公司 | Dust preventing assembly and projecting apparatus adopting same |
| CN102169279A (en) * | 2010-02-26 | 2011-08-31 | 索尼公司 | Projector apparatus |
| CN102573369A (en) * | 2010-12-17 | 2012-07-11 | 台达电子工业股份有限公司 | Accommodating device and electronic equipment assembly comprising same |
| CN102681311A (en) * | 2011-03-11 | 2012-09-19 | 中强光电股份有限公司 | Control circuit and operation method of projector |
| WO2013016845A1 (en) * | 2011-08-04 | 2013-02-07 | Telefonaktiebolaget L M Ericsson (Publ) | Method and device for detecting clogging of a filter |
| CN103809631A (en) * | 2013-12-31 | 2014-05-21 | 华为技术有限公司 | Control method and electronic system of anti-dust device |
| CN104914652A (en) * | 2015-06-15 | 2015-09-16 | 东信科技（深圳）有限公司 | Device and method for detecting blockage of projector dust screen |
| CN106101678A (en) * | 2016-08-19 | 2016-11-09 | 成都创年科技有限公司 | The dust seal type projector that a kind of ceremony celebration is special |
| WO2017186041A1 (en) * | 2016-04-27 | 2017-11-02 | 深圳市光峰光电技术有限公司 | Projector and method of controlling heat dissipation of projector |
| WO2018090612A1 (en) * | 2016-11-15 | 2018-05-24 | 深圳市光峰光电技术有限公司 | Light source system, projector, and temperature controlling method |
| CN108594571A (en) * | 2018-06-01 | 2018-09-28 | 苏州市东成办公科技有限公司 | A kind of anti-tampering radiator of projecting apparatus |
| WO2019184420A1 (en) * | 2018-03-30 | 2019-10-03 | 深圳光峰科技股份有限公司 | Dust control system and projection device |
-
2006
- 2006-01-17 CN CN 200610005071 patent/CN101004544A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101369094B (en) * | 2007-08-17 | 2010-10-13 | 精工爱普生株式会社 | Projector |
| US8231716B2 (en) | 2007-09-25 | 2012-07-31 | Chiwai Patrick Poon | Self-alarming air cleaner |
| WO2009039713A1 (en) * | 2007-09-25 | 2009-04-02 | Chiwai Patrick Poon | A self-alarming air cleaner |
| CN101576702B (en) * | 2008-05-08 | 2011-06-15 | 三洋科技中心(深圳)有限公司 | Dust preventing assembly and projecting apparatus adopting same |
| CN102004381A (en) * | 2009-08-27 | 2011-04-06 | 日立民用电子株式会社 | Projection display device |
| CN102004381B (en) * | 2009-08-27 | 2012-06-27 | 日立民用电子株式会社 | Projection display device |
| CN102169279A (en) * | 2010-02-26 | 2011-08-31 | 索尼公司 | Projector apparatus |
| CN102573369A (en) * | 2010-12-17 | 2012-07-11 | 台达电子工业股份有限公司 | Accommodating device and electronic equipment assembly comprising same |
| CN102681311B (en) * | 2011-03-11 | 2014-09-03 | 中强光电股份有限公司 | Control circuit and operation method of projector |
| CN102681311A (en) * | 2011-03-11 | 2012-09-19 | 中强光电股份有限公司 | Control circuit and operation method of projector |
| WO2013016845A1 (en) * | 2011-08-04 | 2013-02-07 | Telefonaktiebolaget L M Ericsson (Publ) | Method and device for detecting clogging of a filter |
| CN103931278A (en) * | 2011-08-04 | 2014-07-16 | 爱立信(中国)通信有限公司 | Method and device for detecting clogging of a filter |
| CN103809631A (en) * | 2013-12-31 | 2014-05-21 | 华为技术有限公司 | Control method and electronic system of anti-dust device |
| CN103809631B (en) * | 2013-12-31 | 2016-08-17 | 华为技术有限公司 | The control method of a kind of dust guard and electronic system |
| CN104914652A (en) * | 2015-06-15 | 2015-09-16 | 东信科技（深圳）有限公司 | Device and method for detecting blockage of projector dust screen |
| WO2017186041A1 (en) * | 2016-04-27 | 2017-11-02 | 深圳市光峰光电技术有限公司 | Projector and method of controlling heat dissipation of projector |
| CN107315308A (en) * | 2016-04-27 | 2017-11-03 | 深圳市光峰光电技术有限公司 | Projecting apparatus and its cooling control method |
| CN106101678A (en) * | 2016-08-19 | 2016-11-09 | 成都创年科技有限公司 | The dust seal type projector that a kind of ceremony celebration is special |
| WO2018090612A1 (en) * | 2016-11-15 | 2018-05-24 | 深圳市光峰光电技术有限公司 | Light source system, projector, and temperature controlling method |
| CN108073020A (en) * | 2016-11-15 | 2018-05-25 | 深圳市光峰光电技术有限公司 | Light-source system, projecting apparatus and temprature control method |
| CN108073020B (en) * | 2016-11-15 | 2020-05-29 | 深圳光峰科技股份有限公司 | Light source system, projector and temperature control method |
| WO2019184420A1 (en) * | 2018-03-30 | 2019-10-03 | 深圳光峰科技股份有限公司 | Dust control system and projection device |
| CN108594571A (en) * | 2018-06-01 | 2018-09-28 | 苏州市东成办公科技有限公司 | A kind of anti-tampering radiator of projecting apparatus |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |