CN202837796U - Air cooling system of rear projection screen - Google Patents
Air cooling system of rear projection screen Download PDFInfo
- Publication number
- CN202837796U CN202837796U CN 201220486760 CN201220486760U CN202837796U CN 202837796 U CN202837796 U CN 202837796U CN 201220486760 CN201220486760 CN 201220486760 CN 201220486760 U CN201220486760 U CN 201220486760U CN 202837796 U CN202837796 U CN 202837796U
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- CN
- China
- Prior art keywords
- projection screen
- rear projection
- air
- ventilating duct
- scavenger 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
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Abstract
The utility model discloses an air cooling system of a rear projection screen, and relates to a rear projection screen. The air cooling system of the rear projection screen has the advantages of high heat radiation efficiency, simple structure design, low manufacturing and maintenance cost, slight noise, energy conservation and environmental protection, and can effectively solve the problem that air pressure inside and outside a projection box body is imbalanced. The air cooling system of the rear projection screen comprises a rear projection screen box body, a projector, a first air exchange fan, a second air exchange fan, a first air duct, a second air duct, a first connection assembly and a second connection assembly, wherein the first air exchange fan is arranged at the fist heat radiation opening on the rear projection screen box body; the first air exchange fan is connected with the air inlet of the first air duct via the first connection assembly; the second air exchange fan is arranged at the second heat radiation opening on the rear projection screen box body; the second air exchange fan is connected with the air outlet of the first air duct via the second connection assembly; the air outlet of the first air duct is connected with the air inlet of the projector; and the air inlet of the second air duct is connected with the air outlet of the projector.
Description
Technical field
The utility model relates to a kind of rear projection screen, especially relates to a kind of rear projection screen air cooling system.
Background technology
In today that scientific and technological and economy develop rapidly, people are more and more higher to the requirement of display terminal, and rear projection screen has become the Important Platform of large-scale high-end displaying because of the advantage of its display area and cost; In existing most of rear projection screen, the heat that air cooling system can't distribute projector is in time got rid of Projection box, and body inside and outside air pressure is uneven, often causes projector's life-span, performance impaired, use the system of soft curtain easily therefore to cause hooking especially, finally cause anamorphose.
Summary of the invention
The purpose of this utility model is to provide a kind of radiating efficiency high, can effectively solve Projection box inner and outer air pressure imbalance problem, and structural design is simpler, and manufacturing is lower with maintenance cost, and noise is slighter, the rear projection screen air cooling system of energy-conserving and environment-protective.
The utility model is provided with rear projection screen casing, projector, the 1st scavenger fan, the 2nd scavenger fan, the 1st ventilating duct, the 2nd ventilating duct, the 1st coupling assembling and the 2nd coupling assembling;
Described the 1st scavenger fan is located at casing the 1st thermovent place on the rear projection screen casing, and the 1st scavenger fan is connected through the air intake opening of the 1st coupling assembling with the 1st ventilating duct; Described the 2nd scavenger fan is located at casing the 2nd thermovent place of rear projection screen casing, and the 2nd scavenger fan is connected through the gas outlet of the 2nd coupling assembling with the 1st ventilating duct; The gas outlet of described the 1st ventilating duct is connected with the air intake opening of projector, and the air intake opening of described the 2nd ventilating duct is connected with the gas outlet of projector.
Described the 1st coupling assembling can be provided with the 1st steel plate and the 1st securing member, and described the 1st steel plate is fastened on the air intake opening of the 1st ventilating duct by the 1st securing member; Described the 2nd coupling assembling can be provided with the 2nd steel plate and the 2nd securing member, and described the 2nd steel plate is fastened on the gas outlet of the 2nd ventilating duct by the 2nd securing member.
Between the 1st scavenger fan and rear projection screen casing louvre, and between the 2nd scavenger fan and rear projection screen casing louvre, all can be provided with dustcloth.
The utility model comprises two scavenger fans, two ventilating ducts and two coupling assemblings, scavenger fan is tightly connected with two ventilating ducts respectively, the past ventilating duct air inlet of scavenger fan, a scavenger fan exhaust, the ventilation volume of scavenger fan carries the radiator fan exhaust air rate greater than projector; Ventilating duct is tight heat radiation air intake opening and exhausr port over against projector respectively.
Be reducing noise and prevent that hot-air from leaking at ventilating duct, use rubber blanket and screw firm locking between scavenger fan and ventilating duct.Because the scavenger fan exhaust air rate is large, easily introduces extraneous dust, is provided with dustcloth between scavenger fan and Projection box louvre.
Ventilating duct can adopt galvanized steel through the high temperature baking vanish, and the dustless bits of non-corrosive drop.The inside dimension of ventilating duct length and bending position and rear projection screen casing adapts to.
The utility model effectively solves the rear projection screen system and causes the problem of anamorphose because projector heat radiation causes screen body inside and outside air pressure imbalance, simple structure, and manufacturing is low with maintenance cost, and noise is slight, energy-conserving and environment-protective.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the A place enlarged drawing of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and concrete embodiment.
Referring to Fig. 1 and 2, the utility model embodiment is provided with rear projection screen casing 1, projector 4, the 1st scavenger fan 10, the 2nd scavenger fan 17, the 1st ventilating duct 7, the 2nd ventilating duct 13, the 1st coupling assembling and the 2nd coupling assembling.
Described the 1st scavenger fan 10 is located at casing the 1st thermovent 8 places on the rear projection screen casing 1, and the 1st scavenger fan 10 is connected through the air intake opening of the 1st coupling assembling with the 1st ventilating duct 7; Described the 2nd scavenger fan 17 is located at casing the 2nd thermovent 16 places of rear projection screen casing 1, and the 2nd scavenger fan 17 is connected through the gas outlet of the 2nd coupling assembling with the 1st ventilating duct 7; The gas outlet of described the 1st ventilating duct 7 is connected with the air intake opening 3 of projector 4, and the air intake opening of described the 2nd ventilating duct 13 is connected with the gas outlet 5 of projector 4.
Described the 1st coupling assembling can be provided with the 1st steel plate 12 and the 1st securing member 11, and described the 1st steel plate 12 is fastened on the air intake opening of the 1st ventilating duct 7 by the 1st securing member 11; Described the 2nd coupling assembling can be provided with the 2nd steel plate 6 and the 2nd securing member 14, and described the 2nd steel plate 6 is fastened on the gas outlet of the 2nd ventilating duct 13 by the 2nd securing member 14.
Between the 1st scavenger fan 10 and rear projection screen casing 1 louvre, and between the 2nd scavenger fan 17 and rear projection screen casing 1 louvre, all can be provided with dustcloth.
The exhaust air rate of scavenger fan carries the exhaust air rate of radiator fan greater than projector 4, for the hot gas that prevents projector's 4 dischargings is diffused into whole rear projection screen casing 2, another opening of the 1st ventilating duct 7 is over against the air intake opening of projector 4, and another opening of ventilating duct 13 is over against the exhausr port of projector 4; For slowing down the collision of scavenger fan and ventilating duct, between the 1st scavenger fan 10 and the 1st ventilating duct 7, rubber blanket is installed, between the 2nd scavenger fan 17 and the 2nd ventilating duct 13 rubber blanket is installed; For preventing because exhaust draws dust, be provided with respectively the 1st dustcloth 9 and the 2nd dustcloth 15 at the 1st thermovent 8 and the 2nd thermovent 16 places.
As shown in Figure 1, the 1st thermovent 8 of rear projection screen casing is arranged on rear projection screen casing 1 side by position, and the 2nd thermovent 16 of rear projection screen casing 1 is arranged on rear projection screen casing 1 side by the position, top; It is inboard that the 1st ventilating duct 7 hangs on rear projection screen casing 1 back side, and it is inboard that the horizontal component of the 2nd ventilating duct 13 hangs on rear projection screen casing 1 back side, and it is inboard that the vertical part of the 2nd ventilating duct 13 depends on rear projection screen casing 1 side; The 1st ventilating duct 7 and the 2nd ventilating duct 13 adopt galvanized steel through the high temperature baking vanish, and the inside dimension of length and bending position and rear projection screen casing 1 adapts to.
As shown in Figure 2, the 2nd scavenger fan 17 and the 2nd ventilating duct 13 adopt closely locked with the 2nd securing member 14 of screw eye, and the centre is equipped with rubber blanket; Settle the 2nd dustcloth 15 between the 2nd thermovent 16 of the 2nd scavenger fan 17 exhausr ports and rear projection screen casing 1.
Claims (5)
1. a rear projection screen air cooling system is characterized in that being provided with rear projection screen casing, projector, the 1st scavenger fan, the 2nd scavenger fan, the 1st ventilating duct, the 2nd ventilating duct, the 1st coupling assembling and the 2nd coupling assembling;
Described the 1st scavenger fan is located at casing the 1st thermovent place on the rear projection screen casing, and the 1st scavenger fan is connected through the air intake opening of the 1st coupling assembling with the 1st ventilating duct; Described the 2nd scavenger fan is located at casing the 2nd thermovent place of rear projection screen casing, and the 2nd scavenger fan is connected through the gas outlet of the 2nd coupling assembling with the 1st ventilating duct; The gas outlet of described the 1st ventilating duct is connected with the air intake opening of projector, and the air intake opening of described the 2nd ventilating duct is connected with the gas outlet of projector.
2. a kind of rear projection screen air cooling system as claimed in claim 1 is characterized in that described the 1st coupling assembling is provided with the 1st steel plate and the 1st securing member, and described the 1st steel plate is fastened on the air intake opening of the 1st ventilating duct by the 1st securing member.
3. a kind of rear projection screen air cooling system as claimed in claim 1 is characterized in that described the 2nd coupling assembling is provided with the 2nd steel plate and the 2nd securing member, and described the 2nd steel plate is fastened on the gas outlet of the 2nd ventilating duct by the 2nd securing member.
4. a kind of rear projection screen air cooling system as claimed in claim 1 is characterized in that being provided with dustcloth between the 1st scavenger fan and rear projection screen casing louvre.
5. a kind of rear projection screen air cooling system as claimed in claim 1 is characterized in that being provided with dustcloth between the 2nd scavenger fan and rear projection screen casing louvre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486760 CN202837796U (en) | 2012-09-21 | 2012-09-21 | Air cooling system of rear projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486760 CN202837796U (en) | 2012-09-21 | 2012-09-21 | Air cooling system of rear projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202837796U true CN202837796U (en) | 2013-03-27 |
Family
ID=47949462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220486760 Expired - Fee Related CN202837796U (en) | 2012-09-21 | 2012-09-21 | Air cooling system of rear projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202837796U (en) |
-
2012
- 2012-09-21 CN CN 201220486760 patent/CN202837796U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20131202 Granted publication date: 20130327 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20140602 Granted publication date: 20130327 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20130921 |