CN115185149B - Projector convenient to heat dissipation - Google Patents
Projector convenient to heat dissipation Download PDFInfo
- Publication number
- CN115185149B CN115185149B CN202210945853.7A CN202210945853A CN115185149B CN 115185149 B CN115185149 B CN 115185149B CN 202210945853 A CN202210945853 A CN 202210945853A CN 115185149 B CN115185149 B CN 115185149B
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- liquid crystal
- crystal screen
- heat dissipation
- screen support
- shell
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 76
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 121
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000012790 adhesive layer Substances 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000499 gel Substances 0.000 claims description 4
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000002923 metal particle Substances 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
- G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The invention relates to the technical field of projectors, in particular to a projector convenient for heat dissipation, which comprises a shell, wherein a liquid crystal screen support is fixedly arranged in the shell, liquid crystal screen support blades for adjusting the air flow direction are fixedly connected to two sides of the liquid crystal screen support, a heat dissipation fin for accelerating air flow cooling is fixedly arranged on one side of the shell, a fan for assisting the heat dissipation of a liquid crystal screen is fixedly arranged in the shell, and the angles of the heat dissipation air flow entering and exiting in the direction can be controlled when the heat dissipation air flow passes through the inside of the liquid crystal screen support, so that the heat dissipation air flow can more stably pass through the liquid crystal screen support, turbulent flow generated in the liquid crystal screen by the heat dissipation air flow is avoided, the flow speed of the heat dissipation air flow is improved, and the heat dissipation capacity of the liquid crystal screen is improved.
Description
Technical Field
The invention relates to the technical field of projectors, in particular to a projector convenient for heat dissipation.
Background
A projector, also called a projector, is a device capable of projecting images or videos onto a curtain, and can play corresponding video signals by being connected with a computer, VCD, DVD, BD, a game machine, DV and the like through different interfaces.
There is fresnel lens in the LCD projector, fin, LCD and the LCD support of supplementary LCD installation, in order to avoid outside dust to influence the inside projection quality that influences of projector, the shell of LCD projector is closed usually, and the inside heat dissipation air current of LCD projector can only circulate in the inside of shell.
In the prior art, both sides of LCD screen support are the open state, and the heat dissipation air current can produce the vortex in the inside LCD screen support when dispelling the heat for the LCD screen in the LCD screen support, influences the radiating rate to the LCD screen, avoids the inside LCD screen heat dissipation of projecting apparatus untimely, influences the optical characteristic of LCD screen, and then influences the colour and the luminance characteristic of projecting apparatus projection image.
Disclosure of Invention
The present invention is directed to a projector that facilitates heat dissipation, and solves the problems set forth in the background art.
The aim of the invention can be achieved by the following technical scheme:
the projector comprises a shell, wherein a liquid crystal screen support is fixedly arranged in the shell, liquid crystal screen support blades used for adjusting the air flow direction are fixedly connected to two sides of the liquid crystal screen support, radiating fins used for accelerating air flow cooling are fixedly arranged on one side of the shell, a fan used for assisting the heat radiation of the liquid crystal screen is fixedly arranged in the shell, and a heat radiation air duct is arranged on one side, away from the radiating fins, of the liquid crystal screen support;
preferably, a first Fresnel lens is arranged inside the shell and positioned at the top of the liquid crystal screen support, a first polaroid is arranged at the bottom of the liquid crystal screen support, a side substrate is arranged at the bottom of the first polaroid, a side substrate and a liquid crystal screen signal flat cable are arranged at the bottom of the side substrate, a second polaroid is arranged at the bottom of the side substrate, and a second Fresnel lens is arranged at the bottom of the second polaroid.
Preferably, a temperature sensor is fixedly arranged on one side, far away from the radiating air duct, of the liquid crystal screen support, and the temperature sensor is electrically connected with the fan and used for controlling the rotating speed of the fan.
Preferably, the top and the bottom of the inner wall of the shell are fixedly provided with reflecting mirrors, the bottom of the inner wall of the shell is fixedly provided with lenses, and the lenses are fixedly arranged in the shell and on one side of the shell.
Preferably, the material of the liquid crystal screen support is any one of copper, iron, aluminum and tin, or any one of alloy materials.
Preferably, the length L of the liquid crystal screen support blade is between 0.1 and 200nm, the thickness D of the liquid crystal screen support blade is between 0.1 and 5nm, the width W of the liquid crystal screen support blade is between 0.1 and 20nm, and the included angle theta between the liquid crystal screen support blade and the liquid crystal screen support is between 10 and 350 degrees.
The projector further comprises a first heat conducting fin and a second heat conducting fin, wherein the first heat conducting fin is arranged between the liquid crystal screen support and the first Fresnel lens, and the second heat conducting fin is arranged between the liquid crystal screen support and the first polaroid.
Preferably, the top and the bottom of the first heat conducting fin are both provided with a first adhesive layer, the top of the first heat conducting fin is connected to the bottom of the first Fresnel lens through the first adhesive layer, and the bottom of the first heat conducting fin is connected to the top of the liquid crystal screen bracket through the first adhesive layer.
Preferably, the top and the bottom of the second heat conducting fin are both provided with a second adhesive layer, the top of the second heat conducting fin is connected to the bottom of the liquid crystal display bracket through the second adhesive layer, and the bottom of the second heat conducting fin is connected to the top of the first polarizer through the second adhesive layer.
Preferably, the first and second heat conductive sheets are made of any one of graphene, graphite high polymer, silica gel or high polymer gel containing metal particles.
The invention has the beneficial effects that:
through the LCD screen support blade that sets up at LCD screen support both ends, can be when the heat dissipation air current passes through inside the LCD screen support to dispel the heat to the LCD screen, the angle when business turn over to the direction of heat dissipation air current is controlled for the heat dissipation air current can be more steady through the LCD screen support, avoids the heat dissipation air current to produce the vortex in the LCD screen inside, promotes the flow velocity of heat dissipation air current, promotes the heat dispersion to the LCD screen, avoids the heat dissipation of LCD screen not in time to influence the optical characteristic of LCD screen, and then influences the color and the luminance characteristic of projecting apparatus projection image.
Through the LCD screen support that adopts metal material to make, can promote heat conduction speed, avoid the LCD screen support to produce the deformation, and can make temperature sensor more accurate to the temperature measurement of LCD screen support department, the fan can rotate with suitable speed, avoids forming the vortex when the radiating air current and leading to discharge rate to descend, if will promote radiating efficiency and make the fan accelerate, then can avoid the fan to be in high-speed pivoted state throughout and continuously produce the noise.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;
FIG. 1 is a schematic view showing the overall structure of embodiment 1 of the present invention;
FIG. 2 is a schematic view of a direction of a heat dissipation air flow of a bracket portion of the liquid crystal display panel in FIG. 1;
FIG. 3 is a schematic view of the direction of a heat dissipating airflow without attaching a liquid crystal display bracket blade in the prior art;
FIG. 4 is a schematic view of the disassembled perspective view of the housing portion of FIG. 1;
FIG. 5 is a schematic view of a portion of the liquid crystal display stand of FIG. 4;
FIG. 6 is a side view of the liquid crystal display stand of FIG. 5;
FIG. 7 is a schematic view of the structure of embodiment 2 of the present invention;
reference numerals in the drawings are as follows:
1. the LED light source comprises a shell, 2, a liquid crystal screen support, 3, a liquid crystal screen, 4, liquid crystal screen support blades, 5, heat dissipation fins, 6, a fan, 7, a heat dissipation air duct, 8, a first Fresnel lens, 9, a TFT side substrate, 10, a CF side substrate, 11, a liquid crystal screen signal flat cable, 12b, a second polaroid, 13, a second Fresnel lens, 14, a temperature sensor, 15, a reflector, 16, an LED,17, a lens, 18, a first heat conducting sheet, 19, a second heat conducting sheet, 20, a first adhesive layer, 21 and a first adhesive layer.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The projector convenient for heat dissipation comprises a shell 1, wherein a liquid crystal screen support 2 is fixedly arranged in the shell 1, liquid crystal screen support blades 4 used for adjusting the air flow direction are fixedly connected to two sides of the liquid crystal screen support 2, a heat dissipation fin 5 used for accelerating air flow cooling is fixedly arranged on one side of the shell 1, a fan 6 used for assisting heat dissipation of a liquid crystal screen is fixedly arranged in the shell 1, and a heat dissipation air duct 7 is arranged on one side, away from the heat dissipation fin 5, of the liquid crystal screen support 2;
the liquid crystal display device comprises a shell 1, wherein a first Fresnel lens 8 is arranged at the top of a liquid crystal display support 2, a first polaroid is arranged at the bottom of the liquid crystal display support 2, a TFT side substrate 9 is arranged at the bottom of the first polaroid, a CF side substrate 10 and a liquid crystal display signal flat cable 11 are arranged at the bottom of the TFT side substrate 9, a second polaroid 12b is arranged at the bottom of the CF side substrate 10, and a second Fresnel lens 13 is arranged at the bottom of the second polaroid 12 b.
As shown in fig. 3, the outermost side of the housing 1 is provided with a lens, and the light source of the LED16 is imaged from the outer side of the lens through the lens 17 and the reflecting mirror 15, the housing 1 is designed in a closed manner, and the liquid crystal screen support 2, the liquid crystal screen 3 and different components above and below the liquid crystal screen support 2 are sealed in the housing 1, so that the projection quality is prevented from being affected by external dust interference.
As shown in fig. 4 and 5, the lcd support blade 4 and the lcd support 2 are integrally formed, and no additional materials or processes are required.
The liquid crystal display bracket 2 is fixedly provided with a temperature sensor 14 at one side far away from the heat dissipation air duct 7, and the temperature sensor 14 is electrically connected with the fan 6 and used for controlling the rotating speed of the fan 6.
The temperature sensor 14 can sense the temperature of the bracket, so as to adjust the rotating speed of the fan 6, thereby achieving the best heat dissipation condition and reducing the noise of the fan, having the advantages of improving the heat dissipation efficiency, prolonging the service life and the like, the temperature sensor 14 can be arranged at any position on the air inlet end, the air outlet end or the bracket of the liquid crystal display bracket 2, can be arranged at the best position according to the requirement, and can be adhered by a heat-resistant adhesive tape or a heat-conducting copper adhesive tape in a fixed mode.
The top and the bottom of the inner wall of the shell 1 are fixedly provided with reflecting mirrors 15, the bottom of the inner wall of the shell 1 is fixedly provided with an LED16, and a lens 17 is fixedly arranged inside the shell 1 and positioned on one side of the LED 16.
The material of the liquid crystal screen support 2 is any one of copper, iron, aluminum and tin, or any one of alloy materials.
The liquid crystal display support 2 made of the metal material can enable heat conduction of the liquid crystal display support 2 to be quicker, stability of the liquid crystal display support is stronger, deformation of the liquid crystal display support made of the plastic material due to high temperature is avoided, and the temperature sensed by the temperature sensor 14 is approximate to the radiating temperature of the liquid crystal display 3 due to the liquid crystal display support 2 made of the metal material.
The metal liquid crystal screen support 2 has good heat conductivity, heat energy of the liquid crystal screen 3 and the first Fresnel lens 8 can be conducted to the metal liquid crystal screen support 2, and then air flow is taken away, so that the heat dissipation efficiency of the system can be improved, and the whole heat dissipation area is increased.
The length L of the liquid crystal screen support blade 4 is between 0.1 and 200nm, the thickness D of the liquid crystal screen support blade 4 is between 0.1 and 5nm, the width W of the liquid crystal screen support blade 4 is between 0.1 and 20nm, and the included angle theta between the liquid crystal screen support blade 4 and the liquid crystal screen support 2 is between 10 and 350 degrees.
The number of the liquid crystal screen support blades 4 at two sides of the liquid crystal screen support 2 can be selected according to actual needs, and the length, the width and the angle of the liquid crystal screen support blades 4 can be adjusted according to needs when the liquid crystal screen support is manufactured.
The working principle of the projector convenient for heat dissipation provided by the invention is as follows:
as shown in fig. 2, when the fan 6 is started to radiate heat, the radiating air flow blown by the fan 6 passes through the second polarizer 12b and the CF side substrate 10, radiates heat at the positions of the second polarizer 12b and the CF side substrate 10, then enters the liquid crystal screen bracket 2 through the radiating air duct 7, radiates heat to the liquid crystal screen 3 in the liquid crystal screen bracket 2, is output through one end of the liquid crystal screen bracket 2 away from the radiating air duct 7, and then is radiated by the radiating fins 5 to assist the radiating air flow, so that the radiating air flow is changed into cooling air flow after being radiated, and is output by the fan 6 again to be converted into radiating air flow, and the radiating air flow circularly flows in the closed shell 1 to radiate heat;
when the air flow enters the liquid crystal screen bracket 2 through the heat dissipation air channel 7 and when the heat dissipation air flow is output from the other end of the liquid crystal screen bracket 2 after the heat dissipation air flow dissipates the heat of the liquid crystal screen 3, the angles of the heat dissipation air flow entering and exiting the air channel can be controlled through the liquid crystal screen bracket blades 4, so that the heat dissipation air flow is more stable when passing through the liquid crystal screen bracket 2;
in the prior art, as shown in fig. 3, when air flows into the liquid crystal screen support 2 through the heat dissipation air duct, the liquid crystal screen support blades 4 are not arranged at two ends of the liquid crystal screen support 2, so that the direction of the heat dissipation air flow is uncontrolled, and turbulence can be generated inside the liquid crystal screen support 2.
As shown in fig. 4, a control circuit is arranged between the temperature sensor 14 and the fan 6, so that the rotation speed of the fan 6 can be controlled, the temperature sensor 14 detects the temperature of the liquid crystal screen support 2, if the temperature of the liquid crystal screen support 2 is too high, the fan 6 is controlled to increase the rotation speed so as to increase the heat dissipation capacity, and if the temperature of the liquid crystal screen support 2 is normal, the rotation speed of the fan 6 is not increased.
The bottom of one side of the liquid crystal screen support 2 far away from the heat dissipation air duct 7 is provided with another heat dissipation air duct, the other heat dissipation air duct is arranged close to the fan 6, the heat dissipation air duct and the other heat dissipation air duct are both in arc-shaped design, the inner cambered surface of the other heat dissipation air duct forms a first inflow, a second inflow is formed between the CF side substrate 10 and the second polaroid 12b, the inner cambered surface of the heat dissipation air duct 7 forms a third inflow, a fourth inflow is formed inside the liquid crystal screen support 2, a first outflow is formed between one side of the liquid crystal screen support 2 far away from the heat dissipation air duct 7 and the heat dissipation fins 5, and a second outflow is formed between the heat dissipation fins 5 and the fan 6;
when the fan 6 is started, the generated heat dissipation airflow sequentially passes through the first inflow, the second inflow, the third inflow and the fourth inflow to take away the heat of the liquid crystal screen, then passes through the first outflow to assist in heat dissipation at the heat dissipation fins 5, and finally enters the fan 6 through the second outflow to form circulating heat dissipation airflow in the shell 1.
The first inflow, the second inflow, the third inflow and the fourth inflow form an S-shaped radiating air channel together, radiating air flow is guided, more heat in the liquid crystal screen can be taken away by the radiating air flow, the radiating air flow is matched with the circulating flow of the radiating air flow through the radiating fins 5, the cooling of the radiating air flow is facilitated, and the radiating effect on the liquid crystal screen is greatly improved.
Compared with the related art, the projector convenient for heat dissipation has the following beneficial effects:
through the LCD screen support blade 4 that sets up at LCD screen support 2 both ends, can be when the heat dissipation air current passes through inside the LCD screen support 2 to dispel the heat to LCD screen 3, the angle when business turn over to the direction of heat dissipation air current is controlled for the heat dissipation air current can be more steady through LCD screen support 2, avoid the heat dissipation air current to produce the vortex at inside LCD screen 3, promote the flow velocity of heat dissipation air current, promote the heat dispersion to LCD screen 3, avoid the heat dissipation of LCD screen 3 not in time to influence the optical characteristic of LCD screen 3, and then influence the color and the luminance characteristic of projecting apparatus projection image.
Through the LCD screen support 2 that adopts metal material to make, can promote heat conduction speed, avoid LCD screen support 2 to produce the deformation, and can make temperature sensor 14 more accurate to the temperature measurement of LCD screen support 2 department, the fan can rotate with suitable speed, avoids forming the vortex when the heat dissipation air current and leads to discharge rate to descend, if will promote radiating efficiency and make the fan accelerate, can avoid the fan to be in high-speed pivoted state all the time and continuously produce the noise.
Example 2
The projector with the heat dissipation convenience further comprises a first heat conducting fin 18 and a second heat conducting fin 19, wherein the first heat conducting fin 18 is arranged between the liquid crystal screen support 2 and the first Fresnel lens 8, and the second heat conducting fin 19 is arranged between the liquid crystal screen support 2 and the first polaroid.
The top and the bottom of the first heat conducting fin 18 are both provided with a first adhesive layer 20, the top of the first heat conducting fin 18 is connected to the bottom of the first fresnel lens 8 through the first adhesive layer 20, and the bottom of the first heat conducting fin 18 is connected to the top of the liquid crystal screen bracket 2 through the first adhesive layer 20.
The top and bottom of the second heat conducting fin 19 are provided with a second adhesive layer 21, the top of the second heat conducting fin 19 is connected to the bottom of the liquid crystal display bracket 2 through the second adhesive layer 21, and the bottom of the second heat conducting fin 19 is connected to the top of the first polarizer through the second adhesive layer 21.
The first heat conducting fin 18 and the second heat conducting fin 19 are made of any one of graphene, graphite high polymer, silica gel or high polymer gel containing metal particles.
Graphene, graphite high molecular polymer, silica gel or high molecular gel containing metal particles have excellent thermal conductivity.
Compared with the related art, the projector convenient for heat dissipation has the following beneficial effects:
the heat conduction capacity between the first Fresnel lens 8 and the first polaroid and the liquid crystal screen support 2 is improved, and the heat dissipation capacity for the first Fresnel lens 8 and the first polaroid is further improved by the first heat conduction sheet 18 arranged between the liquid crystal screen support 2 and the first Fresnel lens 8 and the second heat conduction sheet 19 arranged between the liquid crystal screen support 2 and the first polaroid.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (5)
1. The projector comprises a shell (1), and is characterized in that a liquid crystal screen support (2) is fixedly arranged in the shell (1), liquid crystal screen support blades (4) used for adjusting the air flow direction are fixedly connected to two sides of the liquid crystal screen support (2), radiating fins (5) used for accelerating air flow cooling are fixedly arranged on one side of the shell (1), a fan (6) used for assisting the heat radiation of a liquid crystal screen is fixedly arranged in the shell (1), and a radiating air duct (7) is arranged on one side, away from the radiating fins (5), of the liquid crystal screen support (2);
the liquid crystal display device comprises a shell (1), wherein a first Fresnel lens (8) is arranged at the top of a liquid crystal display support (2) and inside the shell, a first polaroid is arranged at the bottom of the liquid crystal display support (2), a TFT side substrate (9) is arranged at the bottom of the first polaroid, a CF side substrate (10) and a liquid crystal display signal flat cable (11) are arranged at the bottom of the TFT side substrate (9), a second polaroid (12 b) is arranged at the bottom of the CF side substrate (10), and a second Fresnel lens (13) is arranged at the bottom of the second polaroid (12 b);
the projector also comprises a first heat conducting fin (18) and a second heat conducting fin (19), wherein the first heat conducting fin (18) is arranged between the liquid crystal screen bracket (2) and the first Fresnel lens (8), and the second heat conducting fin (19) is arranged between the liquid crystal screen bracket (2) and the first polaroid;
the top and the bottom of the first heat conducting fin (18) are respectively provided with a first adhesive layer (20), the top of the first heat conducting fin (18) is connected to the bottom of the first Fresnel lens (8) through the first adhesive layer (20), and the bottom of the first heat conducting fin (18) is connected to the top of the liquid crystal screen bracket (2) through the first adhesive layer (20);
the top and the bottom of the second heat conducting fin (19) are respectively provided with a second adhesive layer (21), the top of the second heat conducting fin (19) is connected to the bottom of the liquid crystal display bracket (2) through the second adhesive layer (21), and the bottom of the second heat conducting fin (19) is connected to the top of the first polaroid through the second adhesive layer (21);
the first heat conducting fin (18) and the second heat conducting fin (19) are made of any one of graphene, graphite high polymer, silica gel or high polymer gel containing metal particles;
the bottom of one side, far away from the radiating air duct (7), of the liquid crystal screen support (2) is provided with another radiating air duct, the other radiating air duct is arranged close to the fan (6), the radiating air duct and the other radiating air duct are both in arc-shaped design, a first inflow is formed on the intrados of the other radiating air duct, a second inflow is formed between the CF side substrate (10) and the second polaroid (12 b), a third inflow is formed on the intrados of the radiating air duct (7), a fourth inflow is formed inside the liquid crystal screen support (2), a first outflow is formed between one side, far away from the radiating air duct (7), of the liquid crystal screen support (2) and the radiating fins (5), and a second outflow is formed between the radiating fins (5) and the fan (6); the first inflow, the second inflow, the third inflow and the fourth inflow form an S-shaped radiating air duct together to guide radiating air flow;
when the fan (6) is started, the generated heat dissipation airflow can sequentially pass through the first inflow, the second inflow, the third inflow and the fourth inflow, take away the heat of the liquid crystal screen, then pass through the first outflow, and pass through the auxiliary heat dissipation at the heat dissipation fins (5), and finally enter the fan (6) through the second outflow, so that the circulating heat dissipation airflow is formed in the shell (1).
2. The projector with the function of convenient heat dissipation according to claim 1, wherein a temperature sensor (14) is fixedly arranged on one side, far away from the heat dissipation air duct (7), of the liquid crystal screen support (2), and the temperature sensor (14) is electrically connected with the fan (6) and is used for controlling the rotating speed of the fan (6).
3. The projector with the function of convenient heat dissipation according to claim 1, wherein the top and the bottom of the inner wall of the shell (1) are fixedly provided with the reflecting mirror (15), the bottom of the inner wall of the shell (1) is fixedly provided with the LED (16), and the lens (17) is fixedly arranged inside the shell (1) and positioned on one side of the LED (16).
4. The projector according to claim 1, wherein the liquid crystal screen bracket (2) is made of any one of copper, iron, aluminum and tin, or any one of alloy materials.
5. The projector according to claim 4, wherein the length L of the liquid crystal screen support blade (4) is between 0.1 nm and 200nm, the thickness D of the liquid crystal screen support blade (4) is between 0.1 nm and 5nm, the width W of the liquid crystal screen support blade (4) is between 0.1 nm and 20nm, and the angle θ between the liquid crystal screen support blade (4) and the liquid crystal screen support (2) is between 10 ° and 350 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210945853.7A CN115185149B (en) | 2022-08-08 | 2022-08-08 | Projector convenient to heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210945853.7A CN115185149B (en) | 2022-08-08 | 2022-08-08 | Projector convenient to heat dissipation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115185149A CN115185149A (en) | 2022-10-14 |
| CN115185149B true CN115185149B (en) | 2024-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210945853.7A Active CN115185149B (en) | 2022-08-08 | 2022-08-08 | Projector convenient to heat dissipation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115185149B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11271880A (en) * | 1998-03-24 | 1999-10-08 | Sony Corp | Projector device |
| CN109164667A (en) * | 2018-09-03 | 2019-01-08 | 深圳小淼科技有限公司 | A kind of projector |
| CN213545026U (en) * | 2020-12-14 | 2021-06-25 | 深圳市科金明电子股份有限公司 | Heat abstractor and projecting apparatus of projecting apparatus |
| CN216411849U (en) * | 2021-12-14 | 2022-04-29 | 深圳市科金明电子股份有限公司 | Heat radiation structure and projecting apparatus of projecting apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI447509B (en) * | 2011-11-11 | 2014-08-01 | Hon Hai Prec Ind Co Ltd | Heat dissipation device of porjector optical mechanical |
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2022
- 2022-08-08 CN CN202210945853.7A patent/CN115185149B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11271880A (en) * | 1998-03-24 | 1999-10-08 | Sony Corp | Projector device |
| CN109164667A (en) * | 2018-09-03 | 2019-01-08 | 深圳小淼科技有限公司 | A kind of projector |
| CN213545026U (en) * | 2020-12-14 | 2021-06-25 | 深圳市科金明电子股份有限公司 | Heat abstractor and projecting apparatus of projecting apparatus |
| CN216411849U (en) * | 2021-12-14 | 2022-04-29 | 深圳市科金明电子股份有限公司 | Heat radiation structure and projecting apparatus of projecting apparatus |
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| CN115185149A (en) | 2022-10-14 |
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