CN219124263U - Optical engine internal circulation dust-free heat radiation structure - Google Patents
Optical engine internal circulation dust-free heat radiation structure Download PDFInfo
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- CN219124263U CN219124263U CN202223453128.2U CN202223453128U CN219124263U CN 219124263 U CN219124263 U CN 219124263U CN 202223453128 U CN202223453128 U CN 202223453128U CN 219124263 U CN219124263 U CN 219124263U
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- radiator
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Abstract
The utility model discloses an optical engine internal circulation dust-free heat dissipation structure, which comprises a shell and a first Fresnel lens, a TFT, heat insulation glass and a second Fresnel lens which are positioned in the shell from top to bottom in sequence; a first air channel is formed between the first Fresnel lens and the TFT, a second air channel is formed between the TFT and the heat-insulating glass, a third air channel is formed between the heat-insulating glass and the second Fresnel lens, and the heat dissipation structure further comprises at least one blower and at least one radiator; the air blower is arranged at the air inlet of the first air duct, the radiator comprises radiating fins, the radiating fins consist of inner sheets and outer sheets, and the inner sheets are provided with ventilation gaps; the inner piece is arranged at the air inlet of the blower and communicated with the second air duct and the third air duct, and the outer piece is arranged at the outer side of the shell. According to the utility model, the TFT and the heat-insulating glass in the heat-radiating structure are radiated in an internal air quantity circulation mode, so that the influence of external dust on display and projection quality is avoided.
Description
Technical Field
The utility model relates to the technology of projection equipment, in particular to an optical engine internal circulation dust-free heat dissipation structure.
Background
At present, the heat dissipation system of the projection device or the optical engine on the market is usually that the interior is communicated with the outside, and cold air from the outside is sent into the interior of the projection device to perform air convection, but after the air from the outside is sent into the interior of the projection device, dust can be accumulated on the TFT board, and the TFT board is arranged inside and is not easy to maintain.
Therefore, it is necessary to provide a projection device with internal circulation heat dissipation to prevent dust in the outside air from accumulating on the TFT board.
Disclosure of Invention
The utility model provides an optical engine internal circulation dust-free heat dissipation structure, which aims to solve the problems.
According to the embodiment of the application, the optical engine inner loop dust-free heat dissipation structure comprises: the first Fresnel lens, the TFT, the heat-insulating glass and the second Fresnel lens are arranged in the shell from top to bottom in sequence;
a first air channel is formed between the first Fresnel lens and the TFT, a second air channel is formed between the TFT and the heat insulation glass, and the first air channel and the second air channel are communicated with each other; the heat dissipation structure further comprises at least one blower and at least one radiator;
the air blower is arranged at the air inlet of the first air duct, the radiator comprises radiating fins, the radiating fins consist of inner sheets and outer sheets, and the inner sheets are provided with ventilation gaps; the inner piece is arranged at the air inlet of the blower and communicated with the second air duct, and the outer piece is arranged at the outer side of the shell.
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects: the application has designed an optical engine inner loop dust-free heat radiation structure, through the inner loop heat dissipation, avoids the dust in the outside air to pile up on TFT.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a heat dissipating structure according to the present utility model;
fig. 2 to fig. 4 are schematic cross-sectional views of other embodiments of the heat dissipation structure according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Referring to fig. 1, the optical engine inner-circulation dust-free heat dissipation structure of the present utility model includes: a housing 10, and a first fresnel lens 11, a TFT12, a heat insulating glass 13, and a second fresnel lens 14 which are positioned in the housing 10 in this order from top to bottom;
a first air channel 101 is formed between the first fresnel lens 11 and the TFT12, a second air channel 102 is formed between the TFT12 and the insulating glass 13, and the first air channel 101 and the second air channel 102 are communicated with each other; the heat dissipation structure further comprises at least one blower 15 and at least one heat sink 16;
the blower 15 is disposed at the air inlet 111 of the first air duct 101, the radiator 16 includes a heat dissipation fin, the heat dissipation fin is composed of an inner sheet 161 and an outer sheet 162, and the inner sheet 161 is provided with a ventilation slit; the inner piece 161 is disposed at the air inlet 112 of the blower 15 and is in communication with the second air duct 102, and the outer piece 162 is disposed outside the housing.
In the utility model, the blower 15 blows cold air to the TFT12 through the first air duct 101 to radiate heat of the TFT12, hot air radiated in the first air duct 101 flows back to the inner sheet 161 of the radiator 16 again through the second air duct 102, the inner sheet 161 radiates heat of the hot air to the periphery of the shell 10 through the outer sheet 162 after conducting heat conduction, and then the inner sheet 161 blows the cooled cold air to the air inlet 112 of the blower 15, thereby realizing internal air circulation and radiation, completely isolating from the external environment and avoiding dust on the TFT 12.
Referring to fig. 2, in the present utility model, a third air duct 103 may be further formed between the insulating glass 13 and the second fresnel lens 14, where the third air duct 103 is connected to the first air duct 101 and the second air duct 102, and the hot air after heat dissipation in the first air duct 101 flows back to the inner sheet 161 of the heat radiator 16 again through the third air duct 103, and after the inner sheet 161 dissipates heat by using the outer sheet 162, the hot air is ventilated to the blower 15 and then is blown to the TFT12 in the first air duct 101 again to dissipate heat, so as to form a complete cycle.
As shown in fig. 3 and 4, in other embodiments of the present utility model, the blower 15 has two, a first blower 15a and a second blower 15b, respectively, and the radiator 16 has two, a first radiator 16a and a second radiator 16b, respectively; the first air duct 101 and the second air duct 102 are communicated through the first air blower 15a and the second air blower 15b, the first air blower 15a and the first radiator 16a are arranged on one side of the shell 10, and the second air blower 15a and the second radiator 16b are arranged on the other side of the shell 10;
the air outlet of the first air blower 15a is arranged at the air inlet of the first air duct 101, the inner sheet 161 of the second radiator 16b is arranged at the air outlet of the first air duct 101, the inner sheet 161 of the second radiator 16b is connected with the air inlet of the second air blower 15b, the air outlet of the second air blower 15b is arranged at the air inlet of the second air duct 102 and/or the air inlet of the third air duct 103, and the inner sheet 161 of the first radiator 16a is arranged at the air inlet of the first air blower 15a and is conducted with the second air duct 102 and the third air duct 103; the outer fins 162 of the first heat sink 16a and the second heat sink 16b are disposed outside the housing 10.
In this embodiment, the first air duct 101 is used as a ventilation channel for cooling the TFT12, and when the hot air after absorbing heat enters the inner sheet 161 of the second radiator 102, the hot air passes through the outer sheet 162 of the second radiator 16b to cool again, and then continuously enters the second air duct 102 and the third air duct 103 as cool air for returning, the cool air in the second air duct 102 and the third air duct 103 dissipates heat from the insulating glass 13 and the second fresnel lens 14, then enters the inner sheet 161 of the first radiator 16a, and the hot air of the first radiator 16a dissipates heat from the insulating glass 13 and the second fresnel lens 14 through the outer sheet 162, then continuously enters the inlet of the first blower 15a, and then enters the circulation again.
In the present embodiment, two heat sinks (16 a, 16 b) are used to perform airtight heat dissipation inside the heat dissipation structure, so that the heat dissipation effect is better, and dust can be prevented from entering.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (4)
1. An optical engine internal circulation dust-free heat radiation structure, comprising: the first Fresnel lens, the TFT, the heat-insulating glass and the second Fresnel lens are arranged in the shell from top to bottom in sequence;
a first air channel is formed between the first Fresnel lens and the TFT, a second air channel is formed between the TFT and the heat-insulating glass, a third air channel is formed between the heat-insulating glass and the second Fresnel lens, and the first air channel, the second air channel and the third air channel are communicated with each other; the heat dissipation structure further comprises at least one blower and at least one radiator;
the air blower is arranged at the air inlet of the first air duct, the radiator comprises radiating fins, the radiating fins consist of inner sheets and outer sheets, and the inner sheets are provided with ventilation gaps; the inner piece is arranged at the air inlet of the blower and is communicated with the second air duct and the third air duct, and the outer piece is arranged at the outer side of the shell.
2. The optical engine internal circulation dust-free heat radiation structure according to claim 1, wherein the blower has two, respectively a first blower and a second blower, and the heat radiator has two, respectively a first heat radiator and a second heat radiator; the first blower and the first radiator are arranged on one side of the shell, and the second blower and the second radiator are arranged on the other side of the shell;
the first air blower air outlet is arranged at the air inlet of the first air duct, the inner piece of the second radiator is arranged at the air outlet of the first air duct, the inner piece of the second radiator is connected with the air inlet of the second air blower, the air outlet of the second air blower is arranged at the air inlet of the second air duct and/or the air inlet of the third air duct, and the inner piece of the first radiator is arranged at the air inlet of the first air blower and is communicated with the second air duct and/or the third air duct; the outer sheets of the first radiator and the second radiator are arranged on the outer side of the shell.
3. An optical engine internal circulation dust-free heat radiation structure, comprising: the first Fresnel lens, the TFT, the heat-insulating glass and the second Fresnel lens are arranged in the shell from top to bottom in sequence;
a first air channel is formed between the first Fresnel lens and the TFT, a second air channel is formed between the TFT and the heat insulation glass, and the first air channel and the second air channel are communicated with each other; the heat dissipation structure further comprises at least one blower and at least one radiator;
the air blower is arranged at the air inlet of the first air duct, the radiator comprises radiating fins, the radiating fins consist of inner sheets and outer sheets, and the inner sheets are provided with ventilation gaps; the inner piece is arranged at the air inlet of the blower and communicated with the second air duct, and the outer piece is arranged at the outer side of the shell.
4. A light engine internal circulation dust free heat dissipating structure according to claim 3, wherein said blower has two, first blower and second blower, respectively, and said heat sink has two, first heat sink and second heat sink, respectively; the first air duct and the second air duct are communicated through the first air blower and the second air blower, the first air blower and the first radiator are arranged on one side of the shell, and the second air blower and the second radiator are arranged on the other side of the shell;
the first air blower air outlet is arranged at the air inlet of the first air duct, the inner piece of the second radiator is arranged at the air outlet of the first air duct, the inner piece of the second radiator is connected with the air inlet of the second air blower, the air outlet of the second air blower is arranged at the air inlet of the second air duct, and the inner piece of the first radiator is arranged at the air inlet of the first air blower and is communicated with the third air duct of the second air duct; the outer sheets of the first radiator and the second radiator are arranged on the outer side of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223453128.2U CN219124263U (en) | 2022-12-23 | 2022-12-23 | Optical engine internal circulation dust-free heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223453128.2U CN219124263U (en) | 2022-12-23 | 2022-12-23 | Optical engine internal circulation dust-free heat radiation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219124263U true CN219124263U (en) | 2023-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223453128.2U Active CN219124263U (en) | 2022-12-23 | 2022-12-23 | Optical engine internal circulation dust-free heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219124263U (en) |
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2022
- 2022-12-23 CN CN202223453128.2U patent/CN219124263U/en active Active
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