CN100553735C - Electronic installation - Google Patents
Electronic installation Download PDFInfo
- Publication number
- CN100553735C CN100553735C CNB2006100595012A CN200610059501A CN100553735C CN 100553735 C CN100553735 C CN 100553735C CN B2006100595012 A CNB2006100595012 A CN B2006100595012A CN 200610059501 A CN200610059501 A CN 200610059501A CN 100553735 C CN100553735 C CN 100553735C
- Authority
- CN
- China
- Prior art keywords
- filter screen
- controller
- electronic installation
- detector
- fan
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A kind of electronic installation and air filtering box, wherein air filtering box is in order to take in an electronic installation in wherein, and comprise a housing, a filter screen, a fan, a detector and a controller, its middle shell has an inlet, filter screen is arranged on the inlet of housing, fan is arranged in the housing, detector detects the grain amount on the filter screen, controller and fan and detector electrically connect, wherein when the grain amount on the filter screen surpassed a critical value, detector sends a signal made controller change the direction of rotation of fan.
Description
Technical field
The present invention is about a kind of electronic installation and air filtering box, particularly about a kind of air filtering box that can make the self-cleaning function to filter screen.
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 air filtering box with the fine particle in the secluding air.
Fig. 1 is the schematic diagram of conventional air Rose Box 10, is provided with filter screen 12 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.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of air filtering box, it can make the self-cleaning function to filter screen, to increase filter screen service life.
According to the present invention, a kind of air filtering box is provided, in order to take in an electronic installation in wherein, and comprise a housing, one first filter screen, one first fan, one first detector, an and controller, its middle shell has an inlet, first filter screen is arranged on the inlet of housing, first fan is arranged in the housing, first detector detects the grain amount on first filter screen, the controller and first fan and first detector electrically connect, wherein when the grain amount on first filter screen surpassed a critical value, first detector sends a signal made controller change the direction of rotation of first fan.
In a preferred embodiment, first detector comprises an optical transmitting set and an optical receiver, wherein optical transmitting set can be a light emitting diode, to launch a light, and optical receiver can be a photoswitch, and be provided with in the mode that is positioned at the not homonymy of first filter screen with optical transmitting set, and receive light from optical transmitting set.
In another preferred embodiment, first detector comprises an optical transmitting set, a speculum and an optical receiver; Wherein optical transmitting set can be a light emitting diode, to launch a light; Speculum is provided with in the mode that is positioned at the not homonymy of first filter screen with optical transmitting set, and light is radiated on the speculum; Optical receiver can be a photoswitch, and is provided with in the mode that is positioned at the same side of first filter screen with optical transmitting set, and receives the light from mirror reflects.
In another preferred embodiment, air filtering box also comprises a vibrator, is arranged on first filter screen, and electrically connect with controller, wherein when the grain amount on first filter screen surpassed critical value, controller made the vibrator action, to remove the particle on first filter screen.
In another preferred embodiment, air filtering box also comprises a revolving part, electrically connects with controller, wherein when the grain amount on first filter screen surpasses critical value, controller makes the revolving part rotation, shakes first filter screen to pat, and then removes the particle on first filter screen.
In another preferred embodiment, housing also comprises an outlet, and above-mentioned air filtering box also comprises one second filter screen, is arranged on the outlet of housing; In addition, air filtering box also comprises one second fan and one second detector, and wherein second fan is arranged in the housing, and electrically connects with controller, and second detector and controller electrically connect, and detects the grain amount on second filter screen; When the grain amount on second filter screen surpassed a critical value, second detector sends a signal made controller stop first fan and second fan; In addition, first fan and first detector are arranged near first filter screen, and second fan and second detector are arranged near second filter screen.
In addition in the present invention, another kind of air filtering box is provided, in order to take in an electronic installation in wherein, and comprise a housing, a filter screen, a cleaning device, a detector and a controller, its middle shell has an inlet, filter screen is arranged on the inlet of housing, cleaning device is arranged on housing, detector detects the grain amount on the filter screen, controller and fan and cleaning device electrically connect, when the grain amount on the filter screen surpassed a critical value, controller made the cleaning device action and removes particle on the filter screen.
In addition in the present invention, provide a kind of electronic installation, comprise a housing, a filter screen, a fan, a detector and a controller, its middle shell has an inlet, filter screen is arranged on the inlet of housing, and fan is arranged in the housing, and detector detects the grain amount on the filter screen, circuit board is arranged in the housing, and have a controller, electrically connect with fan and detector, when the grain amount on the filter screen surpasses a critical value, controller issues a signal transmitted to fan, makes fan change direction of rotation.
In addition in the present invention, another kind of electronic installation is provided, comprise a housing, a filter screen, a cleaning device, a detector and a controller, its middle shell has an inlet, filter screen is arranged on the inlet of housing, cleaning device is arranged on housing, detector detects the grain amount on the filter screen, circuit board is arranged in the housing, and has a controller, electrically connect with detector and cleaning device, wherein when the grain amount on the filter screen surpasses a critical value, controller moves cleaning device and removes particle on the filter screen.
For above and other objects of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 is the schematic diagram of conventional air Rose Box;
Fig. 2 a, Fig. 2 b are the schematic diagram of air filtering box of the present invention;
Fig. 3 a is the schematic diagram of an embodiment of first detector among Fig. 2 a;
Fig. 3 b is the schematic diagram of another embodiment of first detector among Fig. 2 a;
Fig. 4 a is the schematic diagram of a variation of air filtering box of the present invention; And
Fig. 4 b is the schematic diagram of another variation of air filtering box of the present invention.
Symbol description:
1 device
10 air filtering boxes
11 casings
12 filter screens
13 fans
20,20a, 20b air filtering box
21 housings
The 21a inlet
The 21b outlet
22 first filter screens
23 first fans
24,24 ' first detector
241,241 ' optical transmitting set
242,243 ' optical receiver
243,244 ' oscillating circuit
244,245 ' current amplifier
245,246 ', 247 ' lens
246,248 ' bandpass filtering and amplifier
247,249 ' rectification circuit and comparator
242 ' speculum
25 controllers
26 second filter screens
27 second fans
28 second detectors
The 29a vibrator
The 29b revolving part
The specific embodiment
With reference to figure 2a, air filtering box 20 of the present invention is in order to take in an electronic installation (not shown) in wherein, enter the air of electronic installation with filtration, air filtering box 20 comprises a housing 21, one first filter screen 22, one first fan 23, one first detector 24, a controller 25, one second filter screen 26, one second fan 27 and one second detector 28, its middle shell 21 has an inlet 21a and an outlet 21b, first filter screen 22 is arranged on the inlet 21a of housing 21, and second filter screen 26 is arranged on the outlet 21b of housing 21, with the particle p in the filtered air; First fan 23 and second fan 27 are arranged in the housing 21, flow to drive air.
The grain amount that first detector 24 detects on first filter screen 22, with reference to figure 3a and Fig. 3 b, first detector 24 can be penetration or reflective, wherein Fig. 3 a shows a kind of penetration detector, mainly comprises an optical transmitting set 241 and an optical receiver 242, and optical transmitting set 241 can be a light emitting diode, to launch a light, and optical receiver 242 can be a photoswitch, and is provided with in the mode that is positioned at the not homonymy of first filter screen 22 with optical transmitting set 241, and receives the light from optical transmitting set 241; In addition, can also comprise oscillating circuit 243, current amplifier 244, two lens 245, bandpass filtering and amplifier 246 and assemblies such as rectification circuit and comparator 247 in first detector 24,, omit its detailed description at this because these assemblies are traditional.
Fig. 3 b shows a kind of reflective detector 24 ', mainly comprise an optical transmitting set 241 ', a speculum 242 ' and an optical receiver 243 ', wherein optical transmitting set 241 ' can be a light emitting diode, to launch a light, speculum 242 ' is provided with in the mode that is positioned at the not homonymy of this first filter screen 22 with optical transmitting set 241 ', and light is radiated on the speculum 242 ', optical receiver 243 ' can be a photoswitch, and be provided with in the mode that is positioned at the same side of first filter screen 22 with optical transmitting set 241 ', and receive light from speculum 242 ' reflection; In addition, can also comprise oscillating circuit 244 ', current amplifier 245 ', lens 246 ', 247 ', bandpass filtering and amplifier 248 ' and assemblies such as rectification circuit and comparator 249 ' in the detector 24 ', because these assemblies are traditional, omit its detailed description at this.
In addition, it should be noted that first fan 23 and first detector 24 are arranged near first filter screen 22, and second fan 27 and second detector 28 are arranged near second filter screen 26.
Know clearly it, after air filtering box 20 uses a period of time, fine particle P on first filter screen 22 will accumulate, when first detector 24 detects grain amount on first filter screen 22 and surpasses critical value, first detector 24 will issue a signal transmitted to controller 25, this moment, controller 25 made first fan 23 and second fan 27 change into the direction of rotation C2 shown in Fig. 2 b by direction of rotation C1 (shown in Fig. 2 a) originally, and then make air-flow direction change into A2 shown in Fig. 2 b by the A1 shown in Fig. 2 a, because this moment, flow direction was for from inside to outside, to the particle P on the filter screen 22 of winning be discharged from, and reach the function of self-cleaning.
In addition, 28 of second detectors have auxiliary function, because if the outlet 21b of air filtering box 20 is in the not good environment of air regime, when air-flow direction is shown in Fig. 2 b, particle can be brought into again in the air filtering box 20 on the contrary, therefore, when the grain amount on second filter screen 26 surpasses critical value, second detector 28 sends a signal makes controller 25 stop first fan 23 and second fan 27, worsens to avoid making the air in the air filtering box 20.
Fig. 4 a and Fig. 4 b show other variation of air filtering box of the present invention.With reference to figure 4a, air filtering box 20a can also comprise a vibrator cleaning device 29a, be arranged on first filter screen 22, and electrically connect with controller 25, when the grain amount on first filter screen 22 surpasses critical value, controller 25 makes vibrator 29a shake first filter screen 22, to remove the particle on first filter screen 22.With reference to figure 4b, air filtering box 20b also comprises a revolving part 29b, electrically connects with controller 25, when the grain amount on first filter screen 22 surpasses critical value, controller 25 makes revolving part 29b rotation, shakes first filter screen 22 to pat, and then removes the particle on first filter screen 22.By above-mentioned two variation, can make the self-cleaning function of filter screen more certain.
Will be appreciated that in above-mentioned variation, when controller 25 makes vibrator 29a or revolving part 29b action, also change the rotation direction of fan simultaneously, but be not limited thereto, also can only make vibrator 29a or revolving part 29b action, and not change the rotation direction of fan.
In addition, in the above description, explain in wherein air filtering box to take in electronic installation, but be not limited to this, also can will be built in the notion of the present invention in the electronic installation, for example, above-mentioned formation can be set in a projector; In addition, above-mentioned controller can be by on the interior circuit board that is built in this electronic installation.
As mentioned above, because air filtering box of the present invention can be made the self-cleaning function to filter screen, filter screen is increased service life.
Though the present invention with preferred embodiment openly as above; right its is not in order to qualification the present invention, any insider, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (10)
1. electronic installation comprises:
One housing has an inlet;
One first filter screen is arranged on the inlet of this housing;
One first fan is arranged in this housing;
One first detector detects the grain amount on this first filter screen; And
One circuit board, be arranged in this housing, and have a controller, electrically connect with this first fan and this first detector, wherein when the grain amount on this first filter screen surpassed a critical value, this first detector sends a signal made this controller change the direction of rotation of this first fan.
2. electronic installation according to claim 1 is characterized in that, this first detector comprises:
One optical transmitting set is launched a light; And
One optical receiver is provided with in the mode that is positioned at the not homonymy of this first filter screen with this optical transmitting set, and receives the light from this optical transmitting set.
3. electronic installation according to claim 2 is characterized in that, this optical transmitting set is a light emitting diode, and this optical receiver is a photoswitch.
4. electronic installation according to claim 1 is characterized in that, this first detector comprises:
One optical transmitting set is launched a light;
One speculum is provided with in the mode that is positioned at the not homonymy of this first filter screen with this optical transmitting set, and wherein this light is radiated on this speculum; And
One optical receiver is provided with in the mode that is positioned at the same side of this first filter screen with this optical transmitting set, and receives the light from this mirror reflects.
5. electronic installation according to claim 4 is characterized in that, this optical transmitting set is a light emitting diode, and this optical receiver is a photoswitch.
6. electronic installation according to claim 1, it is characterized in that, also comprise a vibrator, be arranged on this first filter screen, and electrically connect with this controller, wherein when the grain amount on this first filter screen surpassed this critical value, this controller made this vibrator action, to remove the particle on this first filter screen.
7. electronic installation according to claim 1, it is characterized in that, also comprise a revolving part, electrically connect with this controller, wherein when the grain amount on this first filter screen surpasses a critical value, this controller makes this revolving part rotation, shakes this first filter screen to pat, and then removes the particle on this first filter screen.
8. electronic installation according to claim 1 is characterized in that this housing also comprises an outlet, and above-mentioned electronic installation also comprises one second filter screen, is arranged on the outlet of this housing.
9. electronic installation according to claim 8 is characterized in that, also comprises:
One second fan is arranged in this housing, and electrically connects with this controller; And
One second detector, electrically connect with this controller, and detect the grain amount on this second filter screen, wherein when the grain amount on this second filter screen surpassed this critical value, this second detector sends a signal made this controller stop this first fan and this second fan.
10. electronic installation according to claim 1 is characterized in that, this electronic installation is a projector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100595012A CN100553735C (en) | 2006-03-10 | 2006-03-10 | Electronic installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100595012A CN100553735C (en) | 2006-03-10 | 2006-03-10 | Electronic installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101032675A CN101032675A (en) | 2007-09-12 |
| CN100553735C true CN100553735C (en) | 2009-10-28 |
Family
ID=38729534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100595012A Expired - Fee Related CN100553735C (en) | 2006-03-10 | 2006-03-10 | Electronic installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100553735C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2537619C2 (en) | 2009-06-12 | 2015-01-10 | Кларкор Эр Филтрейшн Продактс, Инк. | No-diaphragm filter and/or solid frame for filter |
| CN104258650B (en) * | 2014-08-12 | 2016-06-22 | 南康蓝天木业有限公司 | A kind of dust collecting |
| CN106268056A (en) * | 2015-05-27 | 2017-01-04 | 鸿富锦精密工业（深圳）有限公司 | Dedusting structure and there is the electronic system of this dedusting structure |
| CN106535562A (en) * | 2016-10-14 | 2017-03-22 | 苏州佳世达电通有限公司 | Electronic device |
| CN113038747A (en) * | 2021-02-04 | 2021-06-25 | 安徽江淮朗格电气有限公司 | Small-size vector converter |
-
2006
- 2006-03-10 CN CNB2006100595012A patent/CN100553735C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101032675A (en) | 2007-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070207721A1 (en) | Electronic device and filtering unit | |
| CN100553735C (en) | Electronic installation | |
| CN101004544A (en) | Dust guard, and projector possessing the dust guard | |
| US20120097376A1 (en) | Heat dissipation module for optical projection system | |
| US7337553B2 (en) | Lint detector methods and apparatuses | |
| US9846301B2 (en) | Dust collector and projection apparatus with same | |
| US20070152552A1 (en) | Filtering device and projector utilizing the same | |
| CN101371961B (en) | Mechanism for detecting filter clogging, video display apparatus and electronic device | |
| CN101091396B (en) | Projector and method for cooling the same | |
| CN102375296B (en) | Image pickup apparatus | |
| KR20190106716A (en) | Indoor Unit for Air Conditioner | |
| CN101685244B (en) | Projection type image display device | |
| KR102415060B1 (en) | Security camera system | |
| TW201937146A (en) | Smoke detector | |
| US20070165379A1 (en) | Electronic device | |
| CN104028504A (en) | Cleaning module suitable for projection device | |
| US7234818B2 (en) | Dust detection device for air filter and projector utilizing the same | |
| US20210298200A1 (en) | Electronic device and airflow control method | |
| JP2019053378A (en) | Smoke detection device | |
| CN101178534A (en) | Electronic device capable of detecting filtering net replacing opportunity | |
| CN215769987U (en) | Modularization alarm device | |
| TWI464516B (en) | Dustproof structure of porjector | |
| JP2003234982A (en) | Image display device | |
| KR102666887B1 (en) | Projector housing for outdoor installation | |
| JP2015025878A (en) | Image projection device, and control method of image projection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20090220 Address after: Delaware Applicant after: BenQ Corp. Address before: China Taiwan Taoyuan County Applicant before: Qisda Corporation |
|
| ASS | Succession or assignment of patent right |
Owner name: YUJIAN HOLDINGS CO., LTD. Free format text: FORMER OWNER: JIASHIDA TECHNOLOGY CO., LTD. Effective date: 20090220 |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20160310 |