CN2699335Y - Dustproof projector - Google Patents
Dustproof projector Download PDFInfo
- Publication number
- CN2699335Y CN2699335Y CN 200420042986 CN200420042986U CN2699335Y CN 2699335 Y CN2699335 Y CN 2699335Y CN 200420042986 CN200420042986 CN 200420042986 CN 200420042986 U CN200420042986 U CN 200420042986U CN 2699335 Y CN2699335 Y CN 2699335Y
- Authority
- CN
- China
- Prior art keywords
- heating radiator
- heat
- radiator
- die cavity
- bulb
- 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
- 238000003384 imaging method Methods 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 3
- 150000002367 halogens Chemical class 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 40
- 238000009413 insulation Methods 0.000 claims description 13
- 239000011521 glass Substances 0.000 claims description 8
- 238000007639 printing Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 125000005843 halogen group Chemical group 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model relates to a projecting apparatus product technical field refers in particular to a projecting apparatus with dustproof effect. The technical scheme is as follows: it is main including light source part and the imaging part that is located light source part the place ahead, the utility model discloses a behind this kind of structure, light source part produces light, and light converges through fresnel lens, sees through TFT-LCD board, and the picture and text information that produces TFT-LCD forms images through convex lens, and the projection is on the screen. The product adopts a common metal halogen lamp, and the heat generated by the bulb is timely dissipated through the radiator. In addition, the heat is limited in a closed cavity in the radiator, so that the heat cannot influence the normal operation of other devices and a good dustproof effect is achieved.
Description
Technical field:
The utility model relates to the projector product technical field, refers in particular to a kind of projector with dustproof effect.
Background technology:
Along with the progress of society, shadow casting technique has obtained application more and more widely at aspects such as education, amusement, commerce.The liquid crystal projector of being sold on the market at present, it is bright-coloured, true to nature that it has an image, plurality of advantages such as function is many, volume is little, in light weight and good dustproof effect.But the maximum deficiency of its existence is exactly the costliness of lowering one's standard or status, and use and maintenance cost height.For example, because employed light source mostly is the cold light source of UHE (ultrahigh frequency) or UHP (ultra high power) in the liquid crystal projector, this light source biggest advantage is exactly that thermal value is little, can be with being radiated on TFT-LCD (thin-film technique LCD) plate that light is concentrated.What the volume of each optical element just can be processed like this is less, and the phase mutual edge distance of each optical element also can reduce, and simultaneously, it adopts cold light source need not directly adopt air-cooled mode to dispel the heat, and the volume of entire equipment relatively other projector seems dexterous.But the bulb of this cold light source of this generation is but very expensive, and its unit price is about more than 2000 yuans, and this fancy price makes and manyly is difficult to buy because of the consumer who lacks of capital.
In order to address this problem, reduce the cost of product, can adopt cheap metal halid lamp (EHJ) to substitute present cold light source bulb, but because the thermal value of metal halid lamp is very big, therefore cause the optical element of product inside must have certain distance, promptly must have bigger space to be used for heat radiation.And the also of its internal optics system adopt the air-flow of big flow directly to cool off more.So just caused the volume of product bigger, figure's heaviness.
So, there are many people directly on the projector basis of teaching usefulness, to add a TFT-LCD plate at present, though projection quality improves a lot like this, but owing to teaching causes its serviceable life not long with the pollution that projector itself is vulnerable to dust, be that this product can't be separated dustproof problem, and it in use also very bother.
Summary of the invention:
The purpose of this utility model is to overcome the deficiency of product, provides a kind of simple in structure, with low cost, and has the projector of better dustproof effect.
The utility model is achieved by the following technical solution: the imaging moiety that includes the Lights section and be positioned at the Lights section the place ahead, and the Lights section comprises: an inside offers the Fresnel Lenses that the heating radiator of a die cavity, printing opacity thermal insulation board and that a movable lamp socket, that plugs on heating radiator is positioned at heating radiator die cavity opening part are positioned at thermal insulation board the place ahead; Wherein bulb is installed on the lamp socket and is positioned at the heating radiator die cavity, and this bulb rear is provided with a reflector; Thermal insulation board forms confined space with the die cavity of heating radiator; Imaging moiety comprises: a FTF-LCD plate and that is positioned at Fresnel Lenses the place ahead is positioned at the convex lens in FTF-LCD plate the place ahead.
After the utility model adopts this structure, the Lights section generation light, light is assembled through Fresnel Lenses, sees through the TFT-LCD plate, and the graph text information process convex lens imaging with TFT-LCD produces is projected on the screen.This product adopts common metal halid lamp, and by heating radiator the heat that bulb produces is in time dispersed.In addition, heat is limited in the interior sealed hollow of heating radiator, can not influence the normal operation of other devices and play well dustproof effect to guarantee heat.
Description of drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the perspective view of the utility model heating radiator.
Embodiment:
See Fig. 1,2,3, the imaging moiety that the utility model mainly includes the Lights section and is positioned at the Lights section the place ahead.Wherein the Lights section comprises that an inside offers heating radiator 1, the one movable printing opacity thermal insulation board 8 that plugs the lamp socket 7 on heating radiator 1 and be positioned at heating radiator 1 die cavity opening part of a die cavity.Wherein bulb 6 is installed on the lamp socket 7 and is positioned at heating radiator 1 die cavity, and the rear of this bulb 6 is provided with a reflector 5; Thermal insulation board 8 makes the die cavity of heating radiator 1 form a confined space.Imaging moiety comprise one be positioned at thermal insulation board 8 the place aheads Fresnel Lenses 9, the FTF-LCD plate 10 and that is positioned at Fresnel Lenses 9 the place aheads be positioned at the convex lens 14 in FTF-LCD plate 10 the place aheads.
Each parts of the Lights section specifically describe as follows:
Heating radiator 1 adopts metal material to make, and its surface is provided with heat radiator 19, and heat radiator 19 improves radiating rate in order to improve the radiating efficiency of heating radiator 1.Radiator fan 2 is positioned at a side of heating radiator 1, and is fixed on the heating radiator 1.It mainly is to produce air-flow, and the heat of the generation of heating radiator 1 is taken away.In order further to improve the radiating efficiency of heating radiator 1, a chamber internal fan 4 is installed equally, in the die cavity of heating radiator 1 so that the air flow in the die cavity is quickened radiating efficiency.In addition, the inwall at die cavity convexes with some conducting strips 3 equally.Like this, the heat that bulb 6 produces is by conducting strip 3 or be directly conducted on the heating radiator 1, is outwards dispersed by heating radiator 1 again.
The front end of heating radiator 1, promptly the openend of its inner die cavity is provided with printing opacity thermal insulation board 8, and this thermal insulation board 8 is two-layer heat-protecting glass.This heat-protecting glass can absorb the infrared ray that bulb 6 produces.Because first heat-protecting glass absorbed most infrared rays, cause itself and both sides and heating radiator 1 coupling part temperature to be in higher level, so increase by a heat-protecting glass in its place ahead, further heat is confined to being unlikely to conduct to the optical element and the circuit board of imaging moiety in the heating radiator 1.So just can suitably shorten the length of entire product.Two heat-protecting glass edges are fixed on the conducting strip 3, and heat conductive silica gel is filled in its gap between the two.
Fresnel Lenses 9 plays the effect of converging ray.
The specific descriptions of each parts of imaging moiety are as follows:
Imaging moiety is installed on the housing 15, i.e. imaging part is closed by housing 15, can further improve dustproof effect of the present utility model like this.Wherein TFT-LCD plate 10 is for showing graph text information, and it should select transparency good, the very color liquid crystal board that contrast and resolution are higher.The high-temperature resistant of TFT-LCD plate is generally 77 degrees centigrade, makes TFT-LCD plate 10 overheated for light is too concentrated, and the utility model should adopt TFT-LCD plate big or small about 10 inches.Like this since the heat that the Lights section irradiation is come through behind the heat-protecting glass, its heat seldom, so Fresnel Lenses 9 can with TFT-LCD plate 10 close together, thereby dwindle machine volume.
Convex lens 14 are installed on the housing 15, and can carry out the front and back slippage between itself and the housing 15, can adjust the sharpness of projection image like this.
Principle of work of the present utility model is: the Lights section produces light by bulb 6, light, is assembled through Fresnel Lenses 9 heat absorption then by thermal insulation board 8, sees through the TFT-LCD plate, the graph text information that TFT-LCD plate 10 is produced is projected on the screen through convex lens 14 imagings.This product adopts common metal halid lamp, and by heating radiator 1 heat that bulb 6 produces is in time dispersed.In addition, heat is limited in the heating radiator 1 interior sealed hollow, can not influence the normal operation of other devices and play well dustproof effect to guarantee heat.
The shown image of above-mentioned TFT-LCD plate 10 is to realize by the signal transmission between wireless signal receiving box 12 and the wireless signal transmission box 13.The wireless acoustic image transceiver module of 2.4G that signal receiving box 12 and signal launch-box 13 can adopt on the market to be sold.This module can man-to-manly be carried out the signal transmission, also can realize the signal transmission of one-to-many, and promptly it has a plurality of channels, can organize that channel uses simultaneously and interference-free more.So just can realize that a signal launch-box 13 is transmitted to a plurality of projector simultaneously, can use it jointly.Signal receiving box 12 is inserted in the slot set on the housing 15, it makes signal receiving box 12 and the circuit part 16 that is arranged in the housing 15 is connected, interior integrated driver and the audio power amplifier circuit of TFT-LCD plate 10 of the chip of this circuit part 16.In addition, power supply 11, loudspeaker 18 are installed also in housing 15, make like this to the utlity model has multimedia function.During use, signal launch-box 13 is emitted to signal receiving box 12 with picture and text and audio-frequency information, and wherein graph text information is exported by TFT-LCD plate 10, and projects on the screen.And the audio power amplifier circuit of sound signal by circuit part 16 amplifies sound signal, by loudspeaker 18 outputs.For the ease of user's use, row's control button 17 can be set on housing 15 surfaces, this control button 17 forms with circuit part 16 and is electrically connected.
The utility model can hang on ceiling or directly place on the table and use, because signal launch-box 13 generally has the function that rgb signal is converted to VIDEO (video) signal, so the signal that signal launch-box 12 is launched can be the image that VCD, televisor even computer produced.Certainly, also can signal directly be imported in the utility model directly with adopting the mode of wired connection.
Below therefore specific embodiment of the utility model does not only limit its protection domain.
Claims (6)
1, dustproof projector, the imaging moiety that includes the Lights section and be positioned at the Lights section the place ahead is characterized in that:
The Lights section comprises: an inside offers the Fresnel Lenses (9) that the heating radiator (1) of a die cavity, printing opacity thermal insulation board (8) and that a movable lamp socket (7), that plugs on heating radiator (1) is positioned at heating radiator (1) die cavity opening part are positioned at thermal insulation board (8) the place ahead; Wherein bulb (6) is installed on the lamp socket (7) and is positioned at heating radiator (1) die cavity, and the rear of this bulb (6) is provided with a reflector (5); Thermal insulation board (8) forms confined space with the die cavity of heating radiator (1);
Imaging moiety comprises: a FTF-LCD plate (10) and that is positioned at Fresnel Lenses (9) the place ahead is positioned at the convex lens (14) in FTF-LCD plate (10) the place ahead.
2, dustproof projector according to claim 1 is characterized in that: the surface of adopting metal material to make heating radiator (1) is provided with heat radiator (19); One radiator fan (2) is positioned at a side of heating radiator (1); One chamber internal fan (4) is installed, in addition the conducting strip (3) that convexes with at the inwall of heat radiator (19) die cavity in the die cavity of heating radiator (1).
3, dustproof projector according to claim 2 is characterized in that: described thermal insulation board (8) is two-layer heat-protecting glass with certain intervals.
4, dustproof projector according to claim 3 is characterized in that: two heat-protecting glass edges are fixed on the conducting strip (3), and its gap between the two is filled with heat conductive silica gel.
5, dustproof projector according to claim 1 is characterized in that: bulb (6) is the metal halogen bulb.
6, dustproof projector according to claim 1 is characterized in that: imaging moiety is positioned at housing (15), and housing (15) is fixedlyed connected with heating radiator (1); One wireless signal receiving box (12) is inserted in housing (15) and goes up in the set slot, and wireless signal receiving box (12) is connected with circuit part (16), is integrated with the chip of TFT-LCD plate (10) driver in this circuit part (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420042986 CN2699335Y (en) | 2004-03-01 | 2004-03-01 | Dustproof projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420042986 CN2699335Y (en) | 2004-03-01 | 2004-03-01 | Dustproof projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2699335Y true CN2699335Y (en) | 2005-05-11 |
Family
ID=34774865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420042986 Expired - Fee Related CN2699335Y (en) | 2004-03-01 | 2004-03-01 | Dustproof projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2699335Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471317A (en) * | 2018-12-21 | 2019-03-15 | 叶金凤 | A kind of ultrashort out-of-focus projection's instrument of LCD |
| WO2024040763A1 (en) * | 2022-08-26 | 2024-02-29 | 深圳市神牛摄影器材有限公司 | Lamp for photography and video recording |
-
2004
- 2004-03-01 CN CN 200420042986 patent/CN2699335Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471317A (en) * | 2018-12-21 | 2019-03-15 | 叶金凤 | A kind of ultrashort out-of-focus projection's instrument of LCD |
| WO2024040763A1 (en) * | 2022-08-26 | 2024-02-29 | 深圳市神牛摄影器材有限公司 | Lamp for photography and video recording |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |