CN216411848U - LCD projector with multipath shunting type wind path - Google Patents
LCD projector with multipath shunting type wind path Download PDFInfo
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- CN216411848U CN216411848U CN202123083133.4U CN202123083133U CN216411848U CN 216411848 U CN216411848 U CN 216411848U CN 202123083133 U CN202123083133 U CN 202123083133U CN 216411848 U CN216411848 U CN 216411848U
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Abstract
The utility model discloses an LCD projector with a multipath shunting type air path, which comprises an optical machine shell, an optical assembly and a shunting nozzle, wherein the optical machine shell is provided with an air inlet, an optical cavity and an air outlet, and the optical cavity is communicated between the air inlet and the air outlet; the optical assembly is arranged in the optical cavity and at least two heat dissipation paths are separated in the optical cavity; the flow distribution nozzle is arranged in the optical machine shell and communicated between the air inlet and the optical cavity, and is provided with at least two flow distribution channels to form at least two paths of heat dissipation air flows respectively entering the corresponding heat dissipation paths. The LCD projector has high heat dissipation efficiency.
Description
Technical Field
The present disclosure relates to LCD projectors, and particularly to an LCD projector with a multi-path and split-flow air path.
Background
The single-chip LCD projector is too low in transmissivity of the LCD screen, most of light source light cannot penetrate through the LCD screen and gather inside the light machine to form joule heat, and therefore the service performance of the single-chip LCD projector is affected.
Most of the existing single-chip LCD projectors dissipate heat by arranging a heat sink and a fan inside an optical machine, and as disclosed in chinese patent documents, a heat dissipation structure of an LCD projector includes: the heat exchanger comprises a shell, at least two heat sources are arranged in the shell, one or more air inlets for air intake are arranged at the position of the shell close to one of the heat sources, and an air outlet for air exhaust is arranged at the position of the shell close to the other heat source; the fan is located at the bottom end of the shell, the input end of the fan faces the interior of the shell, the output end of the fan is communicated with the air outlet, air is extracted through the fan, and the air enters the shell through the air inlet to form a hot runner and is discharged from the air outlet. The heat dissipation structure integrates all heat sources at different positions in the shell into a whole through the arranged fans, and the heat sources are converged into a hot runner, so that the whole heat dissipation effect can be realized by one fan, a heat dissipation fan is not required to be arranged on each heat source, the heat dissipation effect is improved, and meanwhile, the noise generated by heat dissipation is reduced; the fan exhausts air from inside to outside to take away heat, so that the purpose of reducing the temperature of the shell is achieved, the layout is reasonable, and the using effect of the fan is high. In an embodiment of the above heat dissipation structure, the heat sink is located at the air outlet, the heat sink is connected to the heat source, and the output end of the fan is communicated with the heat sink. The radiator is used for radiating a heat source close to the air outlet, and is used for conveniently radiating the whole light-emitting machine body and the machine shell, the heat at the radiator is high and close to the air outlet, so that high-heat gas generated by the radiator cannot flow back into the machine shell, and the radiating effect of the machine shell and the light-emitting machine body is further improved.
However, the heat dissipation air flow formed by the fan is single, and the heat generated by different elements during operation is different, so that the heat dissipation air flow does not dissipate heat of each element differently, and cannot distribute air flow for key heating areas and non-key heating areas, and cannot meet actual requirements.
Disclosure of Invention
In order to solve the above-mentioned deficiencies of the prior art, the present invention provides an LCD projector, which employs a multi-path and split-flow air path for heat dissipation, thereby greatly improving the heat dissipation efficiency.
The technical problem to be solved by the utility model is realized by the following technical scheme:
an LCD projector with a plurality of paths of shunting air paths comprises an optical machine shell, an optical assembly and a shunting nozzle, wherein the optical machine shell is provided with an air inlet, an optical cavity and an air outlet, and the optical cavity is communicated between the air inlet and the air outlet; the optical assembly is arranged in the optical cavity and at least two heat dissipation paths are separated in the optical cavity; the flow distribution nozzle is arranged in the optical machine shell and communicated between the air inlet and the optical cavity, and is provided with at least two flow distribution channels to form at least two paths of heat dissipation air flows respectively entering the corresponding heat dissipation paths.
Furthermore, the calibers of at least two shunting channels in the shunting nozzle are different in size.
Furthermore, the flow distribution nozzle comprises at least two arc-shaped guide plates which are arranged in a concentric manner, one end of each arc-shaped guide plate in the radian direction is an inlet of each flow distribution channel in the flow distribution nozzle, and the other end of each arc-shaped guide plate in the radian direction is an outlet of each flow distribution channel in the flow distribution nozzle.
Furthermore, the flow distribution nozzle further comprises two fan-shaped blades, one fan-shaped blade is arranged at one end of each arc-shaped guide plate along the axial direction, and the other fan-shaped blade is arranged at the other end of each arc-shaped guide plate along the axial direction.
Furthermore, one surface of at least one fan-shaped blade facing the circle center is of a tangent plane structure at the outlet of the corresponding flow dividing channel.
Further, a first electrical component is also included; the optical engine shell is also provided with a first electrical cavity, the first electrical cavity is arranged in the first electrical cavity, and at least one heat dissipation path is separated in the first electrical cavity; the first electrical cavity is communicated between the flow distribution nozzle and the air inlet.
Further, still including set up in the air inlet air-blower in the ray apparatus shell, the air inlet air-blower with between diverging nozzle and the income light mouth.
Further, a second electrical component is also included; the optical machine shell is also provided with a second electrical cavity, the second electrical assembly is arranged in the second electrical cavity, and at least one heat dissipation path is separated in the second electrical cavity; the second electrical cavity is communicated between the optical cavity and the air outlet.
Further, the optical machine further comprises an air outlet blower arranged in the optical machine shell, and the air outlet blower is communicated between the optical cavity and the air outlet.
Further, the air outlet is provided with a radiator.
The utility model has the following beneficial effects: this LCD projecting apparatus will follow through the flow distribution nozzle the air intake gets into the heat dissipation distinguished and admirable in the optical cavity divides to form two at least ways heat dissipation distinguished and admirable, get into respectively by optical component is in each heat dissipation route of separating in the optical cavity, and then take away the heat that optical component during operation produced, heat dissipation route has many, distributes in each heating point in the optical cavity, each way heat dissipation distinguished and admirable flows through along with corresponding heat dissipation route each heating point in the optical cavity, accessible the flow distribution nozzle control heat dissipation distinguished and admirable entering different heat dissipation routes, and then pertinence is right the district that generates heat of focus and the regional heat dissipation that non-focus generates heat in the optical cavity.
Drawings
Fig. 1 is an internal perspective view of an LCD projector provided by the present invention;
fig. 2 is an internal plan view of an LCD projector provided by the present invention;
FIG. 3 is a schematic perspective view of a nozzle provided in the present invention;
fig. 4 is a schematic cross-sectional view of a flow distribution nozzle provided by the present invention.
Detailed Description
The utility model is described in detail below with reference to the drawings, wherein examples of the embodiments are shown in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example one
As shown in fig. 1 and 2, an LCD projector with a multi-path shunting-type air path includes an optical engine housing 1, an optical assembly 2, and a shunting nozzle 3, where the optical engine housing 1 has an air inlet 11, an optical cavity 12, and an air outlet 13, and the optical cavity 12 is communicated between the air inlet 11 and the air outlet 13; the optical assembly 2 is arranged in the optical cavity 12, and at least two heat dissipation paths are separated in the optical cavity 12; the flow distribution nozzle 3 is arranged in the optical machine housing 1 and communicated between the air inlet 11 and the optical cavity 12, and is provided with at least two flow distribution channels 31 to form at least two paths of heat dissipation air flows respectively entering the corresponding heat dissipation paths.
This LCD projecting apparatus will follow through flow distribution nozzle 3 the air intake 11 gets into the heat dissipation wind current in the optical cavity 12 is shunted to form two at least ways heat dissipation wind current, gets into respectively by optical component 2 in each heat dissipation route that optical component 12 internal partitioning, and then takes away the heat that optical component 2 during operation produced, heat dissipation route has many, distributes in each heating point in the optical cavity 12, and each way heat dissipation wind current flows through each heating point in the optical cavity 12 along with corresponding heat dissipation route, accessible flow distribution nozzle 3 control heat dissipation wind current gets into different heat dissipation routes, and then pertinence is to the heat dissipation of the interior key region of heating and the non-key region of heating of optical cavity 12.
The flow distribution nozzle 3 can be freely disassembled and assembled and can be shared in products with the same size, so that the universality and the universality of the flow distribution nozzle 3 in each product are improved.
Optical component 2 includes ray apparatus light source 21, light funnel 22, collimating lens 23, LCD screen 24, focusing lens 25, speculum 26 and projection lens 27 that set gradually along light propagation path, the light source light that ray apparatus light source 21 launched is in light funnel 22 internal diameter launches the gathering many times after even outgoing extremely collimating lens 23, the warp collimating lens 23's collimation back parallel outgoing extremely LCD screen 24 forms the projection image, then the warp behind focusing lens 25's the focus is handled projecting lens 27 enlargies outside projection.
In this embodiment, the optical assembly 2 has two heat dissipation paths formed in the optical cavity 12, one heat dissipation path passes through the light entrance surface of the LCD screen 24, and the other heat dissipation path passes through the light exit surface of the LCD screen 24.
In a preferred embodiment, the inlet of at least one of the diversion channels 31 is larger than the outlet, which allows the corresponding cooling air flow to be more concentrated.
The calibers of at least two shunting channels 31 in the shunting nozzle 3 are different, and because the air volume of each path of radiating air flow is different due to all differences of the calibers of the shunting channels 31, the air volume of the radiating air flow formed by the shunting channel 31 with the larger calibers is also larger, and the air volume of the radiating air flow formed by the shunting channel 31 with the smaller calibers is also smaller, the targeted differential radiation can be carried out on radiating paths with different heating values; for the heat dissipation path with more heating points and larger heating value, the corresponding diversion channel 31 can be designed as a large-caliber channel, so that the air volume of the heat dissipation air flow in the heat dissipation path is larger, and the heat dissipation capacity is larger; for the heat dissipation path with less heating points and less heating value, the corresponding diversion channel 31 can be designed as a small-caliber channel, so that the air volume of the heat dissipation air flow in the small-caliber channel is smaller, and the heat dissipation capacity is smaller; this improves the efficiency of systematic heat dissipation in the LCD projector without changing the overall size of the nozzle 3.
In this embodiment, since the transmittance of the LCD panel 24 is low, most of the light source light cannot penetrate through the LCD panel 24 and is collected on the light inlet surface of the LCD panel 24 to form a high heat region, the aperture of the flow dividing channel 31 corresponding to the heat dissipation path passing through the light inlet surface of the LCD panel 24 in the flow dividing nozzle 3 is large, and the aperture of the flow dividing channel 31 corresponding to the heat dissipation path passing through the light outlet surface of the LCD panel 24 is small.
Of course, the present disclosure is not limited to only dissipating heat from the LCD panel 24 in the optical assembly 2, and the heat dissipating wind flow in the optical cavity 12 may flow through the surface of the optical engine light source 21, the light funnel 22, the collimating lens 23, the focusing lens 25, the reflector 26, and the projection lens 27 through the assembly gap or the reserved gap between the optical assembly 2 and the optical cavity 12 to dissipate heat of these elements.
The flow distribution nozzle 3 comprises at least one fan-shaped blade 33 and at least two arc-shaped guide plates 32 arranged concentrically, and the fan-shaped blade 33 is vertically connected with each arc-shaped guide plate 32.
One fan-shaped blade 33 is arranged at one axial end of each arc-shaped guide plate 32 to seal one axial end opening of each arc-shaped guide plate 32, the other fan-shaped blade 33 is arranged at the other axial end of each arc-shaped guide plate 32 to seal the other axial end opening of each arc-shaped guide plate 32, and a plurality of fan-shaped blades 33 are arranged among the fan-shaped blades 33 at the two ends at intervals to keep the stability of the flow distribution nozzle 3; one end of each arc-shaped guide plate 32 in the radian direction is an inlet of each flow distribution channel 31 in the flow distribution nozzle 3, and the other end in the radian direction is an outlet of each flow distribution channel 31 in the flow distribution nozzle 3.
When the flow distribution nozzle 3 is designed, the number, the distance and the position of the fan-shaped blades 33 can be adjusted according to the temperature requirement to achieve the desired heat dissipation effect, so that the flow distribution nozzle 3 suitable for the heat dissipation requirement of various products is designed, and the temperature problem of various products is solved quickly.
The flow distribution nozzle 3 makes each flow distribution channel 31 in an arc-shaped trend through the arc-shaped flow guide plate 32, each path of heat dissipation wind flow is blocked by the arc-shaped flow guide plate 32 in the corresponding flow distribution channel 31 to be disturbed and turned, and the flow can become smoother.
In another preferred embodiment, a side of at least one fan-shaped blade 33 facing the center of the circle is a tangent plane structure 321 at the outlet of the corresponding flow dividing channel 31, so that the corresponding heat dissipation wind flow is discharged in a tangent plane direction, and more preferably, the tangent plane structure 321 is parallel to the LCD screen 24.
Example two
As a modification of the first embodiment, the LCD projector in the present embodiment further includes a first electrical component 4; the optical machine housing 1 further has a first electrical cavity 14, the first electrical cavity 14 is disposed in the first electrical cavity 14, and at least one heat dissipation path is separated in the first electrical cavity 14; the first electric cavity 14 is communicated between the flow distribution nozzle 3 and the air inlet 11.
The first electrical component 4 at least comprises a power panel disposed on the back of the reflector 26, and the heat dissipation path in the first electrical cavity 14 passes through a gap between the power panel and the reflector 26.
The heat dissipation air flow entering the optical cavity 12 from the air inlet 11 firstly flows through the surfaces of the two sides of the power panel, takes away heat generated by the power panel during working, and then enters the flow distribution nozzle 3 to form the heat dissipation air flow.
The LCD projector further comprises a second electrical component 5; the optical machine housing 1 further has a second electrical cavity 15, the second electrical component 5 is disposed in the second electrical cavity 15, and at least one heat dissipation path is separated in the second electrical cavity 15; the second electrical cavity 15 is communicated between the optical cavity 12 and the air outlet 13.
The second electrical component 5 at least includes a decoding board disposed outside the light funnel 22, and a heat dissipation path in the second electrical cavity 15 passes through a gap between the decoding board and the light funnel 22.
The heat dissipation air flow coming out of the optical cavity 12 firstly flows through the surfaces of the two sides of the decoding board, takes away the heat generated by the decoding board during working, and then is discharged from the air outlet 13.
EXAMPLE III
As an improvement of the first embodiment or the second embodiment, the LCD projector in this embodiment further includes an air inlet blower 6 and an air outlet blower 7 disposed in the optical machine housing 1, where the air inlet blower 6 is connected between the flow dividing nozzle 3 and the light inlet, specifically between the flow dividing nozzle 3 and the first electrical cavity 14, and the air outlet blower 7 is connected between the optical cavity 12 and the air outlet 13, specifically between the flow dividing nozzle 3 and the second electrical cavity 15.
The air outlet 13 of the optical machine housing 1 is provided with a heat sink 8, and the heat sink 8 may be but is not limited to a heat dissipation fin.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention, and these modifications or equivalent substitutions cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An LCD projector with a plurality of paths of shunting-type air paths is characterized by comprising an optical machine shell, an optical assembly and a shunting nozzle, wherein the optical machine shell is provided with an air inlet, an optical cavity and an air outlet, and the optical cavity is communicated between the air inlet and the air outlet; the optical assembly is arranged in the optical cavity and at least two heat dissipation paths are separated in the optical cavity; the flow distribution nozzle is arranged in the optical machine shell and communicated between the air inlet and the optical cavity, and is provided with at least two flow distribution channels to form at least two paths of heat dissipation air flows respectively entering the corresponding heat dissipation paths.
2. The LCD projector as claimed in claim 1, wherein the at least two branch passages in the branch nozzle have different diameters.
3. The LCD projector as claimed in claim 1, wherein at least one of the branch passages has an inlet larger than an outlet.
4. The LCD projector as claimed in claim 1, wherein the nozzle includes at least two arc-shaped deflectors concentrically arranged, one end of each arc-shaped deflector along the arc direction is an inlet of each flow-dividing channel of the nozzle, and the other end of each arc-shaped deflector along the arc direction is an outlet of each flow-dividing channel of the nozzle.
5. The LCD projector as claimed in claim 4, wherein a surface of at least one fan-shaped blade facing the center of the circle is a tangential surface at the outlet of the corresponding flow-dividing channel.
6. The LCD projector as claimed in claim 1, further comprising a first electrical component; the optical engine shell is also provided with a first electrical cavity, the first electrical cavity is arranged in the first electrical cavity, and at least one heat dissipation path is separated in the first electrical cavity; the first electrical cavity is communicated between the flow distribution nozzle and the air inlet.
7. The LCD projector as claimed in claim 1 or 6, further comprising an air inlet blower disposed in the light engine housing, wherein the air inlet blower is disposed between the air inlet blower and the splitter nozzle and the light inlet.
8. The LCD projector as claimed in claim 1, further comprising a second electrical component; the optical machine shell is also provided with a second electrical cavity, the second electrical assembly is arranged in the second electrical cavity, and at least one heat dissipation path is separated in the second electrical cavity; the second electrical cavity is communicated between the optical cavity and the air outlet.
9. The LCD projector as claimed in claim 1 or 8, further comprising an air blower disposed in the light engine housing, wherein the air blower is connected between the optical cavity and the air outlet.
10. The LCD projector as claimed in claim 1, wherein the air outlet is provided with a heat sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123083133.4U CN216411848U (en) | 2021-12-09 | 2021-12-09 | LCD projector with multipath shunting type wind path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123083133.4U CN216411848U (en) | 2021-12-09 | 2021-12-09 | LCD projector with multipath shunting type wind path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216411848U true CN216411848U (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123083133.4U Active CN216411848U (en) | 2021-12-09 | 2021-12-09 | LCD projector with multipath shunting type wind path |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216411848U (en) |
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2021
- 2021-12-09 CN CN202123083133.4U patent/CN216411848U/en active Active
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