CN2904033Y - Improved projector lampbulb cooling mechanism having duct outlet with silencing net - Google Patents
Improved projector lampbulb cooling mechanism having duct outlet with silencing net Download PDFInfo
- Publication number
- CN2904033Y CN2904033Y CN 200620040512 CN200620040512U CN2904033Y CN 2904033 Y CN2904033 Y CN 2904033Y CN 200620040512 CN200620040512 CN 200620040512 CN 200620040512 U CN200620040512 U CN 200620040512U CN 2904033 Y CN2904033 Y CN 2904033Y
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- bulb
- air
- projector
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Abstract
The utility model provides an improved projector bulb cooling mechanism with a silencing net on outlet of duct. The bulb cooling mechanism of the projector comprises a radiating duct of the bulb, a turbo fan and an axial flow fan. The bulb is enclosed in the radiating duct of the bulb with a transverse set, two ends of which are respectively provided with an inlet and an outlet. The radiating duct is characterized in that the outlet of the radiating duct is provided with a net composed of more than two layers of silk screens with different densities, which can be metal or nylon. The utility model, improved projector bulb cooling mechanism with a silencing net on outlet of duct greatly decreases the noise arising from the high speed flow of the coolant air at the outlet of the duct, thereby purifies the work environment, and improves the usage effect of the projector.
Description
Technical field
The utility model relates to a kind of projector, relates in particular to the mechanism for cooling projector bulb that a kind of modified air channel air outlet adds the net of eliminating the noise.
Background technology
Projector is widely used in education, commerce and the family.Common projector generally comprises a housing and is arranged on the interior photo engine of housing, circuit board, apparatus for lighting up, light source and corresponding cooling mechanism.According to what of camera lens used in the photo engine, projector can be divided into single-lens projector and tri-lens projector again.Generally all be earlier the white light that light source produced to be isolated red, green, blue three coloured light in design, by three liquid crystal light valves three coloured light are modulated respectively, three coloured light after the modulation are handled with diverse ways according to different mining single-lens or the three-lens design.In single-lens projector, be with closing that color component is synthesized and by the single lens projection imaging with three coloured light.In tri-lens projector, be that three coloured light are projected to imaging on the same screen via three different camera lenses respectively.Wherein single-lens projector has the advantages that volume is little, be convenient for carrying, but its back focal length is longer, and the bore of camera lens requires bigger, and optical modules such as employed camera lens and spectroscope are very high to the requirement of quality, precision, cause cost higher.And tri-lens projector can project big picture in than short distance, and picture brightness and contrast all improve a lot than single-lens projector.
Projector can produce a large amount of heat in the course of the work, and heat is mainly derived from bulb, the energy of bulb is except that a part becomes luminous energy, most of distribute in projector with the form of heat energy, these heats such as untimely leaving can have a strong impact on the operate as normal and the serviceable life of projector.Therefore in projector, all be provided with cooling mechanism, comprise the independent lamp bulb cooling mechanism that is provided with, be used for the heat that the course of work produces is in time left.This cooling mechanism generally comprises many fans that vary in size and corresponding wind channels, is used for sucking force air at work from the outside and ventilates, and heat is in time discharged from air outlet.Cooling mechanism produces another problem again, i.e. noise when solving heat dissipation problem, especially at the air outlet place of lamp bulb cooling mechanism heat dissipation wind channel, can send the sharp-pointed noise that produces by the air-out eddy current, and noise can strengthen along with the raising of wind speed, environment for use is caused sound pollution.Generally all there is either large or small noise in the projector of prior art owing to its structural reason.
Summary of the invention
The purpose of this utility model provides a kind of modified air channel air outlet to add the mechanism for cooling projector bulb of eliminating the noise and netting exactly in order to address the above problem.
The purpose of this utility model is achieved in that a kind of modified air channel air outlet adds the mechanism for cooling projector bulb of the net of eliminating the noise, described projector comprises housing and is arranged on the interior photo engine of housing, circuit board, apparatus for lighting up, bulb, power supply and lamp bulb cooling mechanism, described lamp bulb cooling mechanism comprises the bulb heat radiation air channel, vortex flow fan, aerofoil fan and wind output channel, bulb heat radiation air channel horizontally set is trapped among bulb wherein, its two ends are respectively equipped with air inlet and air outlet, vortex flow fan is arranged on the air intake oral-lateral and links to each other with air inlet provides the cooling air intake, aerofoil fan is arranged on the air-out oral-lateral and extracts wind out heat dissipation wind channel and discharge outside machine, wind output channel is connected between bulb heat radiation air channel air outlet and the aerofoil fan, be characterized in, also comprise the noise elimination net, this noise elimination net is installed on the air outlet of heat dissipation wind channel.
Described noise elimination net is made of the silk screen of two-layer above different densities.
In the described two-layer above silk screen, the density of each layer silk screen is respectively the 1-300 order.
Distance between described each layer silk screen is controlled at 0.2-4mm.
The utility model modified air channel air outlet adds the mechanism for cooling projector bulb of the net of eliminating the noise owing to installed the noise elimination net of being made up of multi-layer silk screen additional on the air outlet of heat dissipation wind channel, greatly reduce the noise that cooling air is produced in heat dissipation wind channel air outlet flow at high speed, thereby purified working environment, improved the result of use of projector.
Description of drawings
Fig. 1 has the primary structure synoptic diagram of projector that the utility model modified air channel air outlet adds the lamp bulb cooling mechanism of the net of eliminating the noise.
Embodiment
The utility model modified air channel air outlet adds the mechanism for cooling projector bulb of the net of eliminating the noise, be arranged in the housing of projector, the bulb that is mainly used in being installed in the housing cools off, and its heat that distributes is in time discharged outside the machine, and reduce the noise that cooling air flows and produced as far as possible.
Referring to Fig. 1, Fig. 1 has the primary structure synoptic diagram of projector that the utility model modified air channel air outlet adds the mechanism for cooling projector bulb of the net of eliminating the noise.Shown in the figure, 1 is projector's housing, and 11 for being arranged on the complete machine air outlet on the housing, and 2 is that photo engine, 3 is bulb, and 4 is that bulb heat radiation air channel, 5 is that vortex flow fan, 6 is aerofoil fan, and 7 is wind output channel.Bulb heat radiation air channel 4 horizontally sets are trapped among bulb 3 wherein, its two ends are respectively equipped with air inlet 41 and air outlet 42, wherein air inlet 41 is arranged on the inboard of heat dissipation wind channel 4, air outlet 42 is arranged on the outside of heat dissipation wind channel 4 corresponding to complete machine air outlet 11, vortex flow fan 5 is arranged on the air intake oral-lateral of heat dissipation wind channel 4 and links to each other with air inlet 41 provides the cooling air intake, aerofoil fan 6 is arranged on to be extracted wind out heat dissipation wind channel between the air outlet 42 of heat dissipation wind channel 4 and the complete machine air outlet 11 and discharges outside machine, wind output channel 7 is connected between bulb heat radiation air channel air outlet 42 and the aerofoil fan 6, adds noise elimination net 8 on the air outlet 42 of heat dissipation wind channel 4.
This noise elimination net 8 can be made of the wire gauze and/or the nylon mesh of two-layer above different densities, and the density of each layer silk screen is respectively the 1-300 order, and the distance between each layer silk screen is controlled at 0.2-4mm.Adopt four layers of silk screen in the present embodiment, wherein the 1st layer (innermost layer) employing density is 10 purpose wire gauzes, and the 2nd layer is adopted density is 20 purpose nylon mesh, and the 3rd layer is adopted density is 15 purpose wire gauzes, and it is 30 purpose nylon mesh that outermost layer adopts density.Distance between each silk screen is controlled at 1-1.5mm.
The utility model modified air channel air outlet adds the multi-layer silk screen of the different densities that is adopted in the mechanism for cooling projector bulb of the net of eliminating the noise, can improve the air-out eddy current, play the effect that changes and disperse the frequency of air-out, thereby can effectively reduce the noise that air-out produces in heat dissipation wind channel air outlet place, play good noise elimination effect.
Claims (4)
1, a kind of modified air channel air outlet adds the mechanism for cooling projector bulb of the net of eliminating the noise, described projector comprises housing and is arranged on the interior photo engine of housing, circuit board, apparatus for lighting up, bulb, power supply and lamp bulb cooling mechanism, described lamp bulb cooling mechanism comprises the bulb heat radiation air channel, vortex flow fan, aerofoil fan and wind output channel, bulb heat radiation air channel horizontally set is trapped among bulb wherein, its two ends are respectively equipped with air inlet and air outlet, vortex flow fan is arranged on the air intake oral-lateral and links to each other with air inlet provides the cooling air intake, aerofoil fan is arranged on the air-out oral-lateral and extracts wind out heat dissipation wind channel and discharge outside machine, wind output channel is connected between bulb heat radiation air channel air outlet and the aerofoil fan, it is characterized in that: also comprise the noise elimination net, this noise elimination net is installed on the air outlet of heat dissipation wind channel.
2, modified as claimed in claim 1 air channel air outlet adds the mechanism for cooling projector bulb of the net of eliminating the noise, and it is characterized in that: described noise elimination net is made of the silk screen of two-layer above different densities.
3, modified as claimed in claim 2 air channel air outlet adds the mechanism for cooling projector bulb of the net of eliminating the noise, and it is characterized in that: in the described two-layer above silk screen, the density of each layer silk screen is respectively the 1-300 order.
4, modified as claimed in claim 1 air channel air outlet adds the mechanism for cooling projector bulb of the net of eliminating the noise, and it is characterized in that: the distance between described each layer silk screen is controlled at 0.2-4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040512 CN2904033Y (en) | 2006-03-27 | 2006-03-27 | Improved projector lampbulb cooling mechanism having duct outlet with silencing net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040512 CN2904033Y (en) | 2006-03-27 | 2006-03-27 | Improved projector lampbulb cooling mechanism having duct outlet with silencing net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2904033Y true CN2904033Y (en) | 2007-05-23 |
Family
ID=38079447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620040512 Expired - Fee Related CN2904033Y (en) | 2006-03-27 | 2006-03-27 | Improved projector lampbulb cooling mechanism having duct outlet with silencing net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2904033Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591116A (en) * | 2011-01-17 | 2012-07-18 | 亚洲光学股份有限公司 | Heat radiation module of projector |
-
2006
- 2006-03-27 CN CN 200620040512 patent/CN2904033Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591116A (en) * | 2011-01-17 | 2012-07-18 | 亚洲光学股份有限公司 | Heat radiation module of projector |
| CN102591116B (en) * | 2011-01-17 | 2014-08-06 | 亚洲光学股份有限公司 | Heat radiation module of projector |
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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 |