Closed projector heat dissipation air channel

Abstract

The utility model discloses a closed projector heat radiation air channel, comprising a projection module, the bottom of the projection module is provided with a double-sided air inlet blower, and the air outlet end of the double-sided air inlet blower is connected with a guide air channel; and the air outlet end of the guide air duct corresponds to the position of an imaging module (including the second Fresnel lens, the LCD screen and the first Fresnel lens) of the projection module. According to the utility model, through the cooperative work of the air duct and the heat radiation module, the heat management of the whole projection module is realized, and the stability and reliability of the projector in long-time operation are ensured.

Description

Technical Field

[0001] The utility model relates to a projector, in particular to a closed heat dissipation air duct of the projector. Background Art

[0002] During the long-term operation of traditional closed projectors, the internal components, especially the LED light board and LCD screen, generate a lot of heat, which causes the internal temperature to rise. However, the existing closed projectors have low internal heat exchange efficiency and large wind resistance, and cannot effectively dissipate the generated heat. This not only affects the performance of the projector, but may also cause the LED to reduce its luminous efficiency due to high temperature and the LCD screen to reduce light transmittance due to high temperature, further affecting the projection effect and the service life of the equipment. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a closed projector heat dissipation air duct to solve the problems existing in the background technology.

[0004] The enclosed heat dissipation duct of the utility model projector is realized by the following technical solutions, including:

[0005] A projection module, wherein a double-sided air inlet blower is provided at the bottom of the closed area of ​​the projection module, and the air outlet end of the double-sided air inlet blower is connected to a guide air duct; the air outlet end of the guide air duct corresponds to the imaging module end position of the projection module;

[0006] A first copper tube fin heat dissipation module, wherein the first copper tube fin heat dissipation module is placed on one side of the closed area of ​​the projection module, and the internal heat dissipation fins of the first copper tube fin heat dissipation module are placed on the other side of the closed area of ​​the projection module and correspond to the position of the guide air duct;

[0007] An axial flow fan, wherein the axial flow fan is arranged at the other side of the open area of ​​the projection module, and the axial flow fan corresponds to the position of the heat dissipation fins in the outer area of ​​the first copper tube fin heat dissipation module;

[0008] The second copper tube fin heat dissipation module is installed at the backlight LED end of the projection module, and the second copper tube fin heat dissipation module corresponds to the position of the axial flow fan.

[0009] As a preferred technical solution, the projection module includes a mounting housing, a lens module, a reflector, a light cone-shaped high-reflectivity aluminum and an LED light board;

[0010] The lens module is installed on one side of the front end of the mounting shell, and the light cone-shaped high-reflectivity aluminum is arranged at the rear end of the mounting shell; the LED light board is arranged at the small mouth end of the light cone-shaped high-reflectivity aluminum, and the LED light board is in contact with the heat absorption end of the second copper tube fin heat dissipation module.

[0011] As a preferred technical solution, the front end of the light cone-shaped high-reflectivity aluminum is sequentially provided with a second Fresnel lens, an LCD screen and a first Fresnel lens; a reflector is provided between the first Fresnel lens and the lens module at an angle of 45°.

[0012] As a preferred technical solution, the double-sided air inlet blower is installed at the bottom of the installation shell, and the top air inlet end of the double-sided air inlet blower corresponds to the interior of the installation shell.

[0013] As a preferred technical solution, the first copper tube fin heat dissipation module includes internal heat dissipation fins and external heat dissipation fins; the internal heat dissipation fins and the external heat dissipation fins are connected through internal and external conductive copper tubes.

[0014] The beneficial effects of the utility model are:

[0015] The utility model realizes the thermal management of the entire projection module through the coordinated work of the air duct and the heat dissipation module, thereby ensuring the stability and reliability of the projector during long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0019] Description of reference numerals:

[0020] 1. Lens module; 2. Double-sided air inlet blower; 3. Reflector; 4. Air duct; 5. First Fresnel lens; 6. LED screen; 7. Second Fresnel lens; 8. First copper tube fin heat dissipation module; 9. Light cone-shaped high reflectivity aluminum; 10. Second copper tube fin heat dissipation module; 11. LED light board; 12. Axial flow fan; 81. Internal heat dissipation fins; 82. External heat dissipation fins; 83. Internal and external conduction copper tubes. DETAILED DESCRIPTION

[0021] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0022] like Figure 1 and Figure 2As shown, a closed projector heat dissipation duct of the utility model comprises:

[0023] A projection module, wherein a double-sided air inlet blower 2 is disposed at the bottom of the projection module, and the air outlet end of the double-sided air inlet blower 2 is connected to a guide air duct 4; the air outlet end of the guide air duct 4 corresponds to the imaging module end position of the projection module;

[0024] A first copper tube fin heat dissipation module 8, wherein the first copper tube fin heat dissipation module 8 is placed on one side of the projection module, and an internal heat dissipation fin 81 of the first copper tube fin heat dissipation module 8 is placed on the other side of the projection module and corresponds to the position of the guide air duct 4;

[0025] An axial flow fan 12, wherein the axial flow fan 12 is disposed on the other side of the projection module, and the axial flow fan 12 corresponds to the position of the external heat dissipation fins 82 of the first copper tube fin heat dissipation module 8, and the heat is absorbed by the axial flow fan 12;

[0026] The second copper tube fin heat dissipation module 10 is installed at the backlight LED end of the projection module, and the second copper tube fin heat dissipation module 10 corresponds to the position of the axial flow fan 12 .

[0027] The projection module includes a mounting housing, a lens module 1, a light cone-shaped high-reflectivity aluminum 9 and an LED light board 11;

[0028] The lens module 1 is installed on one side of the front end of the mounting shell 13, and the light cone-shaped high-reflectivity aluminum 9 is arranged at the rear end of the mounting shell 13; the LED light board 11 is arranged at the small mouth end of the light cone-shaped high-reflectivity aluminum 9, and the LED light board 11 is in contact with the heat absorption end of the second copper tube fin heat dissipation module 10.

[0029] Among them, the front end of the light cone-shaped high-reflectivity aluminum 9 is sequentially provided with a second Fresnel lens 7, an LCD screen 6 and a first Fresnel lens 5; a reflector 3 is arranged at an angle of 45° between the first Fresnel lens 5 and the lens module 1, thereby reflecting the projection to the lens.

[0030] In addition, the double-sided air-inlet blower 2 is installed at the bottom of the installation shell, and the top air inlet end of the double-sided air-inlet blower 2 corresponds to the inside of the closed area of ​​the installation shell.

[0031] In addition, the first copper tube fin heat dissipation module 8 includes internal heat dissipation fins and external heat dissipation fins; the internal heat dissipation fins 81 and the external heat dissipation fins 82 are connected through the internal and external conduction copper tubes 83, and the internal heat dissipation fins 81 absorb the internal heat through the internal and external conduction copper tubes 83, and then the internal and external conduction copper tubes 83 conduct the heat to the external heat dissipation fins 82 through the capillary phenomenon and copper conduction.

[0032] Here’s how it works:

[0033] The air blower is rotated 180 degrees by the air duct to blow air from the side of the LCD screen through the high temperature area of ​​the LCD screen due to power on and light, and then the temperature is transferred from the internal heat dissipation fins 81 to the open area heat dissipation fins 82 through the internal and external conduction copper tubes 83. Then the air blower blows the air that has been cooled by the heat dissipation device back into the high temperature area of ​​the LCD screen through the air duct.

[0034] The external low-temperature air passes through the high-temperature area of ​​the external heat dissipation fins 82 of the first copper tube fin heat dissipation module 8 and the high temperature generated by the backlight LED module through the second copper tube fin heat dissipation module 10, and the high-temperature air is extracted to the outside of the projector through the axial flow fan.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A closed projector heat dissipation duct, characterized in that: include: A projection module, wherein a double-sided air inlet blower (2) is arranged at the bottom of the closed area of ​​the projection module, and the air outlet end of the double-sided air inlet blower (2) is connected to a guide air duct (4); the air outlet end of the guide air duct (4) corresponds to the position of the imaging module end of the projection module; A first copper tube fin heat dissipation module (8), wherein the first copper tube fin heat dissipation module (8) is placed on one side of the closed area of ​​the projection module, and the internal heat dissipation fins (81) of the first copper tube fin heat dissipation module (8) are placed on the other side of the closed area of ​​the projection module and correspond to the position of the guide air duct (4); An axial flow fan (12), the axial flow fan (12) being arranged on the other side of the open area of ​​the projection module, and the axial flow fan (12) corresponds to the open area of ​​the external heat dissipation fins (82) of the first copper tube fin heat dissipation module (8); The second copper tube fin heat dissipation module (10) is installed at the backlight LED end of the projection module, and the second copper tube fin heat dissipation module (10) corresponds to the position of the axial flow fan (12).

2. The closed projector heat dissipation duct according to claim 1, characterized in that: The projection module comprises a mounting housing (13), a lens module (1), light cone-shaped high-reflectivity aluminum (9) and an LED light board (11); The lens module (1) is installed on one side of the front end of the installation shell (13), and the light cone-shaped high-reflectivity aluminum (9) is arranged at the rear end of the installation shell (13); the LED light board (11) is arranged at the small end of the light cone-shaped high-reflectivity aluminum (9), and the LED light board (11) is in contact with the heat absorption end of the second copper tube fin heat dissipation module (10).

3. The closed projector heat dissipation duct according to claim 2, characterized in that: A second Fresnel lens (7), an LCD screen (6) and a first Fresnel lens (5) are arranged in sequence at the front end of the light cone-shaped high-reflectivity aluminum (9); a reflector (3) is arranged between the first Fresnel lens (5) and the lens module (1) at an angle of 45 degrees.

4. The closed projector heat dissipation duct according to claim 1, characterized in that: The double-sided air inlet blower (2) is installed at the bottom of the closed area of ​​the installation shell, and the top air inlet end of the double-sided air inlet blower (2) corresponds to the interior of the installation shell.

5. The closed projector heat dissipation duct according to claim 1, characterized in that: The first copper tube fin heat dissipation module (8) comprises internal heat dissipation fins (81) and external heat dissipation fins (82); the internal heat dissipation fins (81) and the external heat dissipation fins (82) are connected via internal and external conductive copper tubes (83).

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