CN2888489Y - A projector with outlet muffler - Google Patents
A projector with outlet muffler Download PDFInfo
- Publication number
- CN2888489Y CN2888489Y CN 200620039202 CN200620039202U CN2888489Y CN 2888489 Y CN2888489 Y CN 2888489Y CN 200620039202 CN200620039202 CN 200620039202 CN 200620039202 U CN200620039202 U CN 200620039202U CN 2888489 Y CN2888489 Y CN 2888489Y
- Authority
- CN
- China
- Prior art keywords
- projector
- sound suppressor
- silk screen
- takes
- cooling mechanism
- 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
Landscapes
- Projection Apparatus (AREA)
Abstract
The utility model provides a projector with out wind muffler, comprising a shell and installed in an optical engine, circuit boards, a light source, and a corresponding heat agency, thermal agency outlets installed in the shell of the side, a muffler is arranged on the thermal agency outlets. For the projector with a out wind muffler, due to the installation of a muffler equipped with a plurality of silk screens, noise generated by fans during high-speed operation can be greatly reduced, thereby purifying the working environment, and improving use effect of the projector.
Description
Technical field
The utility model relates to a kind of projector, relates in particular to a kind of projector that takes the wind sound suppressor out of.
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, 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, major part is distributed in projector with the form of heat energy, and in addition, the optical element in the photo engine also can absorb a part of impervious light and generate heat.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, 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, and the air outlet of cooling mechanism is arranged on a side of housing.Cooling mechanism produces another problem again when solving heat dissipation problem, promptly noise especially at the air outlet place, can send the sharp-pointed noise that is produced by the air-out eddy current, and noise can strengthen along with the raising of rotation speed of the fan, and 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 projector that takes the wind sound suppressor out of exactly in order to address the above problem.
The purpose of this utility model is achieved in that a kind of projector that takes the wind sound suppressor out of, comprise housing and be arranged on the interior photo engine of housing, circuit board, some lamp source and corresponding cooling mechanism, the air outlet of cooling mechanism is arranged on a side of housing, be characterized in, also comprise sound suppressor, this sound suppressor is installed on the air outlet of cooling mechanism.
Described sound suppressor comprises 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 in the described sound suppressor between each layer silk screen is controlled at 0.2-4mm.
Described sound suppressor is made of wire gauze and/or nylon mesh.
The utility model is taken the projector of wind sound suppressor out of owing to installed the sound suppressor of being made up of multi-layer silk screen additional on the air outlet of cooling mechanism, greatly reduce the noise that is produced when fan runs up, thereby purified working environment, improved the result of use of projector.
Description of drawings
Fig. 1 is the structural representation that the utility model is taken the projector of wind sound suppressor out of.
Embodiment
Referring to Fig. 1, the utility model is taken the projector of wind sound suppressor out of, comprise housing 1 and the photo engine, circuit board, some lamp source and the corresponding cooling mechanism that are arranged in the housing 1, the air outlet 2 of cooling mechanism is arranged on a side of housing, sound suppressor 3 is installed on the air outlet of cooling mechanism, this sound suppressor comprises the silk screen 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.Silk screen can be wire gauze or nylon mesh.The sound suppressor 3 of present embodiment comprises the silk screen of 4 layers of different densities, wherein the density of the 1st layer of (innermost layer) silk screen is 10 purpose wire gauzes, the density of the 2nd layer of silk screen is 20 purpose nylon mesh, the density of the 3rd layer of silk screen is 15 purpose wire gauzes, and the density of outermost layer silk screen is 30 purpose nylon mesh.Distance between each silk screen is controlled at 1-1.5mm.
The utility model is taken the multi-layer silk screen of the different densities that is adopted in the projector of wind sound suppressor out of, 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 the air outlet place, play good noise elimination effect.
Claims (5)
1. projector that takes the wind sound suppressor out of, comprise housing and be arranged on the interior photo engine of housing, circuit board, light source and corresponding cooling mechanism, the air outlet of cooling mechanism is arranged on a side of housing, it is characterized in that: also comprise sound suppressor, this sound suppressor is installed on the air outlet of cooling mechanism.
2. the projector that takes the wind sound suppressor out of as claimed in claim 1 is characterized in that: described sound suppressor comprises the silk screen of two-layer above different densities.
3. the projector that takes the wind sound suppressor out of as claimed in claim 2 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. the projector that takes the wind sound suppressor out of as claimed in claim 1 is characterized in that: the distance in the described sound suppressor between each layer silk screen is controlled at 0.2-4mm.
5. the projector that takes the wind sound suppressor out of as claimed in claim 1 is characterized in that: described sound suppressor is made of wire gauze and/or nylon mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039202 CN2888489Y (en) | 2006-01-24 | 2006-01-24 | A projector with outlet muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039202 CN2888489Y (en) | 2006-01-24 | 2006-01-24 | A projector with outlet muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2888489Y true CN2888489Y (en) | 2007-04-11 |
Family
ID=38047060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620039202 Expired - Fee Related CN2888489Y (en) | 2006-01-24 | 2006-01-24 | A projector with outlet muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2888489Y (en) |
-
2006
- 2006-01-24 CN CN 200620039202 patent/CN2888489Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103324013B (en) | Projection arrangement | |
| CN101650517B (en) | Projector | |
| CN202837785U (en) | Micro Optical Imaging Device | |
| CN1573522A (en) | Image projection apparatus | |
| CN101726980A (en) | Projector | |
| CN101737754B (en) | Projector | |
| CN101726979B (en) | Projector | |
| CN2888489Y (en) | A projector with outlet muffler | |
| CN2904039Y (en) | Improved projector liquid crystal cooling mechanism with air inlet silencing net | |
| US20200019047A1 (en) | Projector and optical engine thereof | |
| CN2904033Y (en) | Improved projector lampbulb cooling mechanism having duct outlet with silencing net | |
| CN2904037Y (en) | Improved projector liquid crystal cooling mechanism with air outlet silencing net | |
| CN2904034Y (en) | Improved projector lampbulb cooling mechanism having fan outlet with silencing net | |
| CN2904035Y (en) | Improved projector lampbulb cooling mechanism having fan inlet with silencing net | |
| CN101046619A (en) | Projector liquid crystal cooling mechanism with wind inlet muffling net | |
| CN101008775A (en) | Dustproof single-lens projector | |
| CN101046617A (en) | Projector liquid crystal cooling mechanism with wind outlet muffling net | |
| CN101046613A (en) | Projector lamp bulb cooling mechanism with muffling net in wind outlet of fan | |
| CN2904038Y (en) | Improved projector liquid crystal cooling mechanism with liquid crystal upper air outlet silencing net | |
| CN101046614A (en) | Projector lamp bulb cooling mechanism with muffling net in wind inlet of fan | |
| CN101046612A (en) | Projector lamp bulb cooling mechanism with muffling net in the outlet of wind channel | |
| CN2888492Y (en) | A low-noise projector | |
| US6808296B2 (en) | Cooling apparatus for optical engine assembly | |
| CN202512357U (en) | Novel LED projector | |
| CN101008774A (en) | Projector with air output silencer |
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 |