CN220208075U - Heat exchange structure applied to LCD projector - Google Patents
Heat exchange structure applied to LCD projector Download PDFInfo
- Publication number
- CN220208075U CN220208075U CN202321649057.5U CN202321649057U CN220208075U CN 220208075 U CN220208075 U CN 220208075U CN 202321649057 U CN202321649057 U CN 202321649057U CN 220208075 U CN220208075 U CN 220208075U
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- lcd
- air
- gap
- heat
- 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.)
- Active
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 27
- 230000003287 optical effect Effects 0.000 claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Abstract
The utility model discloses a heat exchange structure applied to an LCD projector, which comprises an LCD unit, a heat exchange unit and an air guide piece; the LCD unit comprises a first optical screen, an LCD and a second optical screen which are sequentially stacked; a first gap is arranged between the first optical screen and the LCD, and a second gap is arranged between the second optical screen and the LCD; the heat exchange unit, the first gap and the second gap are sequentially communicated end to end through the air guide piece to form a circulating air duct; the heat exchange unit is used for exchanging heat with air and driving the air to flow in the circulating air duct. The utility model has ingenious design, and the two sides of the LCD are subjected to secondary heat exchange through the circulating air duct, so that the heat dissipation efficiency of the LCD is improved; meanwhile, the heat exchange efficiency of the air in the projector is accelerated through the internal heat exchange channel and the external heat exchange channel; and then promote the radiating effect of projecting apparatus, extension product life-span.
Description
Technical Field
The utility model relates to the technical field of projectors, in particular to a heat exchange structure applied to an LCD projector.
Background
With the continuous development of technology, projection technology is continuously advanced, projectors are widely applied to meeting, teaching, entertainment and other places, and with the wide application and the improvement of use frequency of the projectors, higher requirements are also put on heat dissipation of the projectors. Existing single LCD projectors typically employ a hermetically sealed light engine to prevent the optical performance of the engine from being affected by dust deposition. However, the LCD projector generates a lot of heat during the use process, and the heat is easy to accumulate in the hermetically sealed optical machine, and if the heat is not timely dissipated, the heat will affect the internal components, shortening the service life of the LCD projector, so the heat dissipation of the hermetically sealed optical machine is a problem to be solved.
Disclosure of Invention
The present utility model is directed to a heat exchanging structure for an LCD projector, which solves the above-mentioned problems of the related art. In order to achieve the above purpose, the present utility model provides the following technical solutions:
a heat exchange structure applied to an LCD projector comprises an LCD unit, a heat exchange unit and an air guide piece; the LCD unit comprises a first optical screen, an LCD and a second optical screen which are sequentially stacked; a first gap is arranged between the first optical screen and the LCD, and a second gap is arranged between the second optical screen and the LCD; the heat exchange unit, the first gap and the second gap are sequentially communicated end to end through the air guide piece to form a circulating air duct; the heat exchange unit is used for exchanging heat with air and driving the air to flow in the circulating air duct.
Further, the heat exchange unit comprises a circulating fan and a heat exchanger; the heat exchanger comprises a plurality of heat dissipation elements and a bracket for fastening the heat dissipation elements; the heat dissipation parts are arranged into a tubular structure with openings at two ends so as to form an internal heat exchange channel; the heat dissipation elements are arranged at intervals to form an external heat exchange channel; the circulating fan is communicated with the external heat exchange channel and/or the internal heat exchange channel so as to drive air to flow through the heat exchanger for heat exchange.
In some embodiments, the air inlet of the circulation fan is respectively communicated with one end of the internal heat exchange channel and one end of the external heat exchange channel, and the air outlet of the circulation fan is sequentially communicated with the first gap, the second gap and the other end of the internal heat exchange channel to form a circulation air channel.
Further, the heat exchange unit further comprises an external fan; the air inlet of the external fan is communicated with the inner space of the LCD projector, and the air outlet of the external fan is communicated with the other end of the external heat exchange channel.
Further, the heat sink is provided as an aluminum material.
Further, the heat dissipation piece is arranged as a square tube.
In some embodiments, the air inlet of the circulation fan is communicated with one end of the external heat exchange channel, and the air outlet of the circulation fan is sequentially communicated with the first gap, the second gap and the other end of the external heat exchange channel to form a circulation air channel.
Further, the LCD projector further comprises an internal fan, wherein an air inlet of the internal fan is communicated with the internal space of the LCD projector, and an air outlet of the internal fan is communicated with one end of the internal heat exchange channel.
The utility model has the beneficial effects that: the utility model has ingenious design, and the two sides of the LCD are subjected to secondary heat exchange through the circulating air duct, so that the heat dissipation efficiency of the LCD is improved; meanwhile, the heat exchange efficiency of the air in the projector is accelerated through the internal heat exchange channel and the external heat exchange channel; and then promote the radiating effect of projecting apparatus, extension product life-span.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only 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 structural diagram of a circulation duct according to a first embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of an LCD unit and a heat exchange unit in a first embodiment of the present utility model.
Fig. 3 is a schematic view of a heat exchanger according to a first embodiment of the present utility model.
Fig. 4 is a schematic structural diagram of a circulation duct in the second embodiment of the present utility model.
Fig. 5 is a schematic structural diagram of an LCD unit and a heat exchange unit in a second embodiment of the present utility model.
Fig. 6 is a schematic view of a heat exchanger according to a second embodiment of the present utility model.
It should be noted that the drawings are not necessarily to scale, but are merely shown in a schematic manner that does not affect the reader's understanding.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.
It is also to be understood that the terminology used in the description of the utility model 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.
Embodiment one:
as shown in fig. 1 to 3, a heat exchange structure applied to an LCD projector includes an LCD unit 1, a heat exchange unit 2 and an air guide 3; the LCD unit 1 includes a first optical screen 11, an LCD12, and a second optical screen 13, which are sequentially stacked; a first gap 101 is arranged between the first optical screen 11 and the LCD12, and a second gap 102 is arranged between the second optical screen 13 and the LCD 12; the heat exchange unit 2, the first gap 101 and the second gap 102 are sequentially communicated end to end through the air guide piece 3 to form a circulating air duct; the heat exchange unit 2 is used for exchanging heat with air and driving the air to flow in the circulating air duct.
In the embodiment of the application, hot air in the LCD projector flows into a circulating air duct under the driving action of the heat exchange unit 2, and the hot air exchanges heat with the heat exchange unit 2 to form cold air; the cold air then enters the first gap 101 to exchange heat with one side of the LCD12 under the guiding action of the air guide piece 3, so that part of heat of the LCD12 is taken away; the cool air is then guided to flow into the second gap 102 to exchange heat with the other side of the LCD12, and take away part of heat of the LCD 12; because the heat exchange efficiency of the LCD12 is generally low due to the smooth plane, the cold air subjected to heat exchange through the first gap 101 still has a larger temperature difference with the LCD12, so that the cold air still has a good heat exchange effect with the LCD12 after flowing into the second gap 102, and the secondary heat exchange with the LCD12 is realized; and finally, the air subjected to secondary heat exchange flows into the heat exchange unit 2 to be cooled again to form cold air, and the cold air returns to the circulating air duct to realize heat exchange circulation. Meanwhile, the air inlet end and the air outlet end of the LCD12 in the circulating air duct are mutually staggered and separated at intervals, and the uniform temperature of the LCD12 is also facilitated.
Further, the heat exchange unit 2 includes a circulation fan 21 and a heat exchanger 22; the heat exchanger 22 includes a plurality of heat dissipation elements 221 and a bracket 222 for fastening the plurality of heat dissipation elements 221; the plurality of heat dissipation elements 221 are arranged in a tubular structure with openings at both ends to form an internal heat exchange channel 201; the plurality of heat dissipation elements 221 are arranged at intervals to form an external heat exchange channel 202; the circulation fan 21 communicates with the external heat exchange passage 202 and/or the internal heat exchange passage 201 to drive air to flow through the heat exchanger 22 for heat exchange. Specifically, the heat exchanger 22 may provide a variety of heat exchange channel options: driving air to flow through the internal heat exchange channel 201 by the circulating fan 21, so that the air contacts with the inner wall of the heat dissipation member 221 to exchange heat; or the air is driven to flow through the external heat exchange channel 202 by the circulating fan 21, so that the air is in contact with the outer surface of the heat dissipation element 221 for heat exchange; or simultaneously performs internal and external double-channel heat exchange.
Further, the air inlet of the circulation fan 21 is respectively communicated with one end of the internal heat exchange channel 201 and one end of the external heat exchange channel 202, and the air outlet of the circulation fan 21 is sequentially communicated with the first gap 101, the second gap 102 and the other end of the internal heat exchange channel 201 to form a circulation air channel.
In this embodiment, the air inlet of the circulation fan 21 is communicated with one end of the external heat exchange channel 202, so that the internal hot air of the LCD projector can be pumped and cooled into cold air through the heat exchanger 22, and then enters the circulation air channel through the air outlet; the air inlet of the circulating fan 21 is communicated with one end of the internal heat exchange channel 201 to drive air in the circulating air channel to flow, so that air subjected to secondary heat exchange on the LCD12 enters the internal heat exchange channel 201 to be cooled under the driving of the circulating fan 21 and flows back into the circulating air channel; the heat exchanger 22 is enabled to realize the inner and outer double-channel simultaneous heat exchange, so that heat dissipation is carried out on the LCD12 and the internal hot air of the LCD projector.
Further, the heat exchange unit 2 further includes an external fan 23; the air inlet of the external fan 23 is communicated with the internal space of the LCD projector, and the air outlet of the external fan 23 is communicated with the other end of the external heat exchanging channel 202. Specifically, the internal hot air of the LCD projector is driven by the external fan 23 to enter the heat exchanger 22 and the circulation duct to dissipate heat.
Further, the heat dissipation member 221 is made of aluminum, which is a conventional heat dissipation material, but other materials such as copper may be used.
Further, the heat dissipation element 221 is configured as a square tube, which can increase the surface area of the heat dissipation element 221 and improve the contact heat exchange effect between the heat dissipation element 221 and air.
Embodiment two:
as shown in fig. 4 to 6, the present embodiment is different from the first embodiment in that: the air inlet of the circulation fan 21 is communicated with one end of the external heat exchange channel 202, and the air outlet of the circulation fan 21 is sequentially communicated with the first gap 101, the second gap 102 and the other end of the external heat exchange channel 202 to form a circulation air channel.
In this embodiment, the air inlet of the circulation fan 21 is communicated with one end of the external heat exchange channel 202, so that the hot air in the LCD projector and the air at the air outlet end of the second gap 102 can be pumped and cooled into cold air by the heat exchanger 22, and then enter the circulation air channel through the air outlet; meanwhile, air in the circulating air channel sequentially flows through the first gap 101 and the second gap 102 to perform secondary heat exchange on the LCD12 under the blowing action of the air outlet of the circulating fan 21, and finally flows back into the heat exchanger 22 from the other end of the external heat exchange channel 202, so that circulating heat exchange is realized.
Further, the air conditioner further comprises an internal fan 24, wherein an air inlet of the internal fan 24 is communicated with the internal space of the LCD projector, and an air outlet of the internal fan 24 is communicated with one end of the internal heat exchange channel 201. Specifically, the internal air driving the LCD projector by the internal fan 24 flows through the internal heat exchanging channel 201 to dissipate heat.
It should also be noted that, in the embodiments of the present utility model, the features of the embodiments of the present utility model and the features of the embodiments of the present utility model may be combined with each other to obtain new embodiments without conflict.
The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model as defined in the claims. Although the present utility model has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications can be made without departing from the scope of the utility model, and it is intended to cover all such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (8)
1. The utility model provides a be applied to heat transfer structure of LCD projector which characterized in that: comprises an LCD unit, a heat exchange unit and an air guide piece; the LCD unit comprises a first optical screen, an LCD and a second optical screen which are sequentially stacked; a first gap is arranged between the first optical screen and the LCD, and a second gap is arranged between the second optical screen and the LCD; the heat exchange unit, the first gap and the second gap are sequentially communicated end to end through the air guide piece to form a circulating air duct; the heat exchange unit is used for exchanging heat with air and driving the air to flow in the circulating air duct.
2. The heat exchange structure applied to an LCD projector according to claim 1, wherein: the heat exchange unit comprises a circulating fan and a heat exchanger; the heat exchanger comprises a plurality of heat dissipation elements and a bracket for fastening the heat dissipation elements; the heat dissipation parts are arranged into a tubular structure with openings at two ends so as to form an internal heat exchange channel; the heat dissipation elements are arranged at intervals to form an external heat exchange channel; the circulating fan is communicated with the external heat exchange channel and/or the internal heat exchange channel so as to drive air to flow through the heat exchanger for heat exchange.
3. The heat exchange structure applied to an LCD projector according to claim 2, wherein: the air inlet of the circulating fan is respectively communicated with one end of the internal heat exchange channel and one end of the external heat exchange channel, and the air outlet of the circulating fan is sequentially communicated with the first gap, the second gap and the other end of the internal heat exchange channel to form a circulating air channel.
4. A heat exchange structure for use in an LCD projector according to claim 3, wherein: the heat exchange unit also comprises an external fan; the air inlet of the external fan is communicated with the inner space of the LCD projector, and the air outlet of the external fan is communicated with the other end of the external heat exchange channel.
5. The heat exchange structure applied to an LCD projector according to claim 2, wherein: the air inlet of the circulating fan is communicated with one end of the external heat exchange channel, and the air outlet of the circulating fan is sequentially communicated with the first gap, the second gap and the other end of the external heat exchange channel to form a circulating air channel.
6. The heat exchange structure applied to an LCD projector according to claim 5, wherein: the LCD projector also comprises an internal fan, wherein an air inlet of the internal fan is communicated with the internal space of the LCD projector, and an air outlet of the internal fan is communicated with one end of the internal heat exchange channel.
7. The heat exchange structure applied to an LCD projector according to claim 2, wherein: the heat dissipation piece is made of aluminum.
8. The heat exchange structure applied to an LCD projector according to claim 2, wherein: the heat dissipation piece is arranged as a square tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321649057.5U CN220208075U (en) | 2023-06-27 | 2023-06-27 | Heat exchange structure applied to LCD projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321649057.5U CN220208075U (en) | 2023-06-27 | 2023-06-27 | Heat exchange structure applied to LCD projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220208075U true CN220208075U (en) | 2023-12-19 |
Family
ID=89148327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321649057.5U Active CN220208075U (en) | 2023-06-27 | 2023-06-27 | Heat exchange structure applied to LCD projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220208075U (en) |
-
2023
- 2023-06-27 CN CN202321649057.5U patent/CN220208075U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107589592B (en) | Heat dissipation structure for backlight module and backlight module | |
| CN114013312A (en) | Charging pile and control method thereof | |
| CN112034667B (en) | Laser projection equipment | |
| CN104661005A (en) | Color wheel device, and light source device as well as projection system thereof | |
| CN220208075U (en) | Heat exchange structure applied to LCD projector | |
| CN210401985U (en) | Partition liquid cooling heat dissipation system and projector | |
| CN114962301B (en) | Blower unit | |
| CN216268737U (en) | Charging pile | |
| CN216850782U (en) | DCS control cabinet | |
| CN216411849U (en) | Heat radiation structure and projecting apparatus of projecting apparatus | |
| WO2023039987A1 (en) | Air-cooled heat dissipation device for fiber laser, and fiber laser | |
| CN212114287U (en) | Cooling device and laser assembly | |
| CN114977840A (en) | Frequency converter system | |
| CN210868579U (en) | Instrument sealing cabinet system utilizing water cooling technology | |
| CN220188846U (en) | Heat radiation module of LCD projection device | |
| CN217685835U (en) | Heat exchanger, pipeline machine | |
| CN220671800U (en) | Projector and efficient radiating type internal circulation air path structure thereof | |
| CN219958060U (en) | Projector lens support with air guiding function and projector | |
| CN216485951U (en) | Heat radiation structure of prism | |
| CN219161044U (en) | White evaporation air cooler disappears | |
| CN218376984U (en) | Four-core neck hanging fan without air duct and capable of achieving bidirectional air outlet | |
| CN219456717U (en) | Low-noise LCD (liquid crystal display) closed optical machine | |
| CN215453746U (en) | Display and terminal equipment | |
| CN217503829U (en) | Cooling water circulating device of central air conditioner | |
| CN220853234U (en) | Concentrated cold water cooling heat exchange system of cigarette making machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |