CN201340510Y - Multimedia liquid crystal projector with dustproof structure - Google Patents
Multimedia liquid crystal projector with dustproof structure Download PDFInfo
- Publication number
- CN201340510Y CN201340510Y CNU2008202294832U CN200820229483U CN201340510Y CN 201340510 Y CN201340510 Y CN 201340510Y CN U2008202294832 U CNU2008202294832 U CN U2008202294832U CN 200820229483 U CN200820229483 U CN 200820229483U CN 201340510 Y CN201340510 Y CN 201340510Y
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- casing
- liquid crystal
- window
- dustproof construction
- projection apparatus
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Abstract
The utility model provides a multimedia liquid crystal projector with a dustproof structure, which comprises a casing, wherein a bulb, an optical engine, a lens, a power source and a fan are arranged in the casing, a plurality of buttons, a focusing window, a projecting window, a vent opening and a vent hole area are arranged on the surface of the casing and are easy to absorb dust. The multimedia liquid crystal projector with a dustproof structure is characterized in that an electric dust collector is arranged on the inner side of an air filter at the vent opening, the electric dust collector comprises a positive electrode plate and a negative electrode plate for absorbing and collecting dust, a sliding door for sealing the buttons are mounted above the buttons and the focusing window, and dustproof structures such as a glass plate for sealing the projecting window is arranged at the projecting window, thereby effectively resolving the dustproof problem of the projector, not only increasing projection quality but greatly reducing routing maintenance cost.
Description
[technical field]
The utility model relates to a kind of projector, particularly a kind of multimedia liquid crystal projection apparatus with dustproof construction.
[background technology]
The multimedia overhead projector instrument is mainly used in mobile office and academic exchange activity, perhaps is used for Multimedia assisted instruction etc.At present, the multimedia overhead projector instrument of selling on the market mainly contains two types: a kind of is traditional LCD (Liquid Crystal Display, liquid crystal display) liquid crystal projection apparatus, the resolution of this LCD projector and brightness are all very high, color rendition is better, and volume is little, and is in light weight, it is all comparatively convenient to operate, carry, and has therefore become the main product on the multimedia overhead projector instrument market; Another kind is the novel digital projector of DLP (Digital Lighting Processing Digital Light Processor), the DLP projector is with DMD (Digital Micormirror Device, digital microscope) as image device, adopted a kind of advanced person's reflection type projection technology, but it is very high that the resolution of present DLP projector also is difficult to accomplish, uniformity degree of image neither be fine.
The structure of tradition liquid crystal multimedia overhead projector instrument generally includes a casing, is provided with bulb, light engine, camera lens, power supply and fan in the casing.The casing surface is provided with plurality of keys corresponding to the position of described light engine, then offers a focal length of being convenient to manual focusing corresponding to lens location and adjusts window.Because projector generates heat easily, for needs that dispel the heat, be provided with a ventilating opening in the side of casing again, this ventilating opening place is provided with filtrator, and and the back side of casing is positioned at the air port place of fan, be provided with the porose area of ventilating.Above-mentioned button edge, focal length are adjusted window, ventilating opening and ventilation porose area because of being directly exposed in the extraneous space, all can adsorb a certain amount of dust to some extent, and wherein, the dust more than 90% enters from ventilating opening.
Because projector is very high to the cleanliness requirement of light engine, and because of the liquid crystal board of projector is very little, and its resolution is very high, slight dust granule will influence it, makes brightness descend, and causes projection quality to descend.Therefore dustproof, dedusting is two important contents of liquid crystal multimedia overhead projector instrument daily servicing.And common liquid crystal multimedia overhead projector instrument does not have good dust reduction capability at present, and therefore further improved necessity arranged.
[utility model content]
The technical problems to be solved in the utility model is to provide a kind of liquid crystal multimedia overhead projector instrument with dustproof construction, might adsorb dust the position be provided with dustproof construction, solved the dustproof problem of projector effectively.
The utility model is achieved in that a kind of multimedia liquid crystal projection apparatus with dustproof construction, comprise a casing, be provided with bulb in the casing, light engine, camera lens, power supply and fan, the casing surface is provided with plurality of keys corresponding to the position of described light engine, then offer a focal length of being convenient to manual focusing corresponding to the position above the camera lens and adjust window, and casing is positioned at camera lens the place ahead and is provided with a projection window, the side of casing is provided with a ventilating opening, this ventilating opening place is provided with an air strainer, and the back side of casing is positioned at the place, air port of fan, be provided with a ventilation porose area, it is characterized in that: the inboard that described ventilating opening place is positioned at air strainer is provided with an electronic dust catcher, and this electronic dust catcher comprises an anode electrode plate and a cathode electrode plate that is used to adsorb and collect dust.
The inboard of described electronic dust catcher also is provided with an adhesive-bonded fabric filtrator.
A slide that is used to seal this button is set up in the top of described button.
The top of described focal length adjustment window is set up one and is used to seal this apart from slide of adjusting window.
It is one-body molded that the slide of the top of described button and described focal length are adjusted the slide of window top, is set up on the two default parallel slideways of casing.
The projection window place of the front end of described camera lens is provided with a glass sheet that is used to cover the projection window.
The inside surface of described ventilation porose area adds the logical fly net of one deck stainless steel, and the mesh size on the logical fly net of this stainless steel is 2.5 * 2.5mm.
Liquid crystal multimedia overhead projector instrument with dustproof construction of the present utility model has following advantage: might adsorb dust the position be provided with dustproof construction, solved the dustproof problem of projector effectively, not only improve projection quality, and greatly reduce the daily servicing cost.
[description of drawings]
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is the utility model multimedia overhead projector instrument perspective view.
Fig. 2 is the inner structure synoptic diagram of the utility model multimedia overhead projector instrument.
Fig. 3 is the structure synoptic diagram of the utility model multimedia overhead projector instrument.
[embodiment]
Please consult Fig. 1 simultaneously to shown in Figure 3, multimedia liquid crystal projection apparatus of the present utility model comprises a casing 1, is provided with bulb 2, light engine 3, camera lens 4, power supply 5 and fan 6 in the casing 1.Described light engine 3 is to be assembled by some optical mirror slips 32, and it is one of multimedia liquid crystal projection apparatus most critical ingredient, and its cleanliness are had relatively high expectations.
As shown in Figure 1, described casing 1 surface is provided with plurality of keys 11 corresponding to the position of described light engine 3, then offers a focal length corresponding to the position of camera lens 4 tops and adjusts window 12.There is the gap between described button 11 and the casing 1, makes button 11 that the operant activity space be arranged, and the chance that this gap promptly exists dust to enter, therefore can above button 11, set up a slide that is used to cover this button, button 11 is isolated from the outside.And described focal length is adjusted the setting of window 12 for the ease of manual focusing, so this focal length adjusts window 12 and need offer greatlyyer, and dust is as easy as rolling off a log to be adjusted window 12 from this focal length and enters.In like manner can above this focal length adjustment window 12, set up one and be used to cover this apart from slide of adjusting window 12.Because of button 11 and focal length are adjusted window 12 close together, can the slide that the slide of the top of button 11 and focal length are adjusted the window top is one-body molded, form a bigger slide 7, on the two parallel slideway (not shown) that are set up in that casing 1 presets.In addition, described casing 1 is positioned at camera lens 4 the place aheads and also is provided with a projection window 13, the light that is used for camera lens 4 penetrates, therefore this projection window 13 also is directly to expose in extraneous space usually, dust then is adsorbed on the eyeglass of camera lens 4 easily, thereby influences drop shadow effect, can be provided with a glass sheet 8 that is used to cover projection window 13 at projection window 13 places, this glass sheet 8 should adopt the good glass sheet of translucent effect, can make drop shadow effect unaffected like this.
Again as shown in Figure 2, the side of described casing 1 is provided with a ventilating opening 16, these ventilating opening 16 places are provided with an air strainer 9, the inboard that described ventilating opening 16 places are positioned at air strainer 9 is provided with an electronic dust catcher 10, this electronic dust catcher 10 comprises an anode electrode plate 101 and a cathode electrode plate 102, because of dust also is electrified body usually, when dust enters this electronic dust catcher 10, promptly can and collect by anode electrode plate 101 or cathode electrode plate 102 absorption, and the effect of absorption is remarkable, adsorbable dust more than 90%.In addition, also establish an adhesive-bonded fabric filtrator 15, outside remaining dust further is blocked in the inboard of described electronic dust catcher 10.
At last as shown in Figure 3, shown in the back side of casing 1 be positioned at the place, air port of fan, be provided with a ventilation porose area 17, be convenient to the heat radiation of power supply 5, because the restriction of casing 1 manufacturing process, and the requirement of air hole through-hole rate, the size of the air hole of this ventilation porose area 17 is generally 10 * 10mm, little winged insect is entered, cause power supply 5 short circuits, break down, therefore can add one deck stainless steel fly net 18 at this inside surface of ventilating porose area 17, mesh on this stainless steel fly net 18 is of a size of 2.5 * 2.5mm, outside can being blocked in the little winged insect that can cause power supply 5 short circuits just.
In sum, the utility model might adsorb dust the position be provided with dustproof construction, solved the dustproof problem of projector effectively, not only improve projection quality, and greatly reduce the daily servicing cost.
Claims (7)
1, a kind of multimedia liquid crystal projection apparatus with dustproof construction, comprise a casing, be provided with bulb in the casing, light engine, camera lens, power supply and fan, the casing surface is provided with plurality of keys corresponding to the position of described light engine, then offer a focal length of being convenient to manual focusing corresponding to the position above the camera lens and adjust window, and casing is positioned at camera lens the place ahead and is provided with a projection window, the side of casing is provided with a ventilating opening, this ventilating opening place is provided with an air strainer, and the back side of casing is positioned at the place, air port of fan, be provided with a ventilation porose area, it is characterized in that: the inboard that described ventilating opening place is positioned at air strainer is provided with an electronic dust catcher, and this electronic dust catcher comprises an anode electrode plate and a cathode electrode plate that is used to adsorb and collect dust.
2, the multimedia liquid crystal projection apparatus with dustproof construction according to claim 1, it is characterized in that: the inboard of described electronic dust catcher also is provided with an adhesive-bonded fabric filtrator.
3, the multimedia liquid crystal projection apparatus with dustproof construction according to claim 1 is characterized in that: a slide that is used to seal this button is set up in the top of described button.
4, the multimedia liquid crystal projection apparatus with dustproof construction according to claim 3 is characterized in that: the top of described focal length adjustment window is set up one and is used to seal this apart from slide of adjusting window.
5, the multimedia liquid crystal projection apparatus with dustproof construction according to claim 4 is characterized in that: it is one-body molded that the slide of the top of described button and described focal length are adjusted the slide of window top, is set up on the two default parallel slideways of casing.
6, the multimedia liquid crystal projection apparatus with dustproof construction according to claim 1 is characterized in that: the projection window place of the front end of described camera lens is provided with a glass sheet that is used to seal the projection window.
7, the multimedia liquid crystal projection apparatus with dustproof construction according to claim 1, it is characterized in that: the inside surface of described ventilation porose area adds one deck stainless steel fly net, and the mesh size on this stainless steel fly net is 2.5 * 2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202294832U CN201340510Y (en) | 2008-12-22 | 2008-12-22 | Multimedia liquid crystal projector with dustproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202294832U CN201340510Y (en) | 2008-12-22 | 2008-12-22 | Multimedia liquid crystal projector with dustproof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201340510Y true CN201340510Y (en) | 2009-11-04 |
Family
ID=41236053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202294832U Expired - Fee Related CN201340510Y (en) | 2008-12-22 | 2008-12-22 | Multimedia liquid crystal projector with dustproof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201340510Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037672A (en) * | 2017-06-13 | 2017-08-11 | 成都全云科技有限公司 | Dedusting stabilization system based on meeting projecting device |
| CN107193174A (en) * | 2017-06-13 | 2017-09-22 | 成都全云科技有限公司 | Dust-filtering system is shown in multifunctional visible meeting |
| CN107193173A (en) * | 2017-06-13 | 2017-09-22 | 成都全云科技有限公司 | Projection structure with efficient anti-gray function |
| WO2018032858A1 (en) * | 2016-08-18 | 2018-02-22 | 深圳市光峰光电技术有限公司 | Projection apparatus |
| CN109143741A (en) * | 2018-10-10 | 2019-01-04 | 北京数科技有限公司 | A kind of projector with detachable protective device |
| CN110209004A (en) * | 2019-05-20 | 2019-09-06 | 郑州铁路职业技术学院 | A kind of ideological and political education computer multimedia teaching apparatus |
-
2008
- 2008-12-22 CN CNU2008202294832U patent/CN201340510Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018032858A1 (en) * | 2016-08-18 | 2018-02-22 | 深圳市光峰光电技术有限公司 | Projection apparatus |
| CN107037672A (en) * | 2017-06-13 | 2017-08-11 | 成都全云科技有限公司 | Dedusting stabilization system based on meeting projecting device |
| CN107193174A (en) * | 2017-06-13 | 2017-09-22 | 成都全云科技有限公司 | Dust-filtering system is shown in multifunctional visible meeting |
| CN107193173A (en) * | 2017-06-13 | 2017-09-22 | 成都全云科技有限公司 | Projection structure with efficient anti-gray function |
| CN109143741A (en) * | 2018-10-10 | 2019-01-04 | 北京数科技有限公司 | A kind of projector with detachable protective device |
| CN110209004A (en) * | 2019-05-20 | 2019-09-06 | 郑州铁路职业技术学院 | A kind of ideological and political education computer multimedia teaching apparatus |
| CN110209004B (en) * | 2019-05-20 | 2021-02-09 | 郑州铁路职业技术学院 | Think political affairs education and use computer multimedia teaching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20141222 |
|
| EXPY | Termination of patent right or utility model |