CN215117143U

CN215117143U - Heat radiation structure of projector

Info

Publication number: CN215117143U
Application number: CN202121417257.9U
Authority: CN
Inventors: 邓梅桂
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-12-10
Anticipated expiration: 2031-06-24

Abstract

The utility model provides a heat radiation structure of projector, when using, turbofan work, outside air gets into the air inlet intracavity from first air intake, the second air intake, because the second air intake is located one side that first air intake is adjacent, make the wind that gets into the air inlet intracavity gather in the air inlet intracavity, take away a part of heat in the air inlet intracavity, because turbofan work produces suction, the wind that gets into the air inlet intracavity is from last inlet channel, the fresh air inlet inhales in the wind channel, the wind that inhales in the wind channel takes away the heat that LCD screen produced, because the air inlet chamber, last inlet channel, the space of fresh air inlet descends step by step, make the wind speed that gets into the wind channel faster, can take away the heat that produces on the LCD screen, and blow off to the casing outside through the ventilation hole, turbofan, the air outlet blows off, make the heat radiation structure's of projector better radiating effect, LCD screen can keep long-time work, the LCD screen has high brightness, and the heat dissipation structure of the projector generates less noise.

Description

Heat radiation structure of projector

Technical Field

The utility model belongs to the technical field of the projecting apparatus and specifically relates to a heat radiation structure of projecting apparatus.

Background

At present, the known single-chip LCD projectors are all of a horizontal structure, a power supply system, a light emitting system (light source), an imaging system and a signal processing system are arranged in a horizontal shell, when the projectors work, each system can emit a lot of heat, especially the LCD screen in the imaging system can generate a lot of heat, when the heat on the LCD screen can not be dissipated in time, the LCD screen is easy to change color (black screen), if the LCD screen is in a high temperature state for a long time, the LCD screen can turn yellow, thereby affecting the imaging effect of the projectors, in order to ensure the working stability and reliability of the projectors, an air inlet is usually arranged on one side of the shell, an air outlet is arranged on the other side of the shell, and a fan set is arranged in front and back of the shell for dissipating the heat of a lot of heat generated in the projectors, because the fans arranged on the air inlet and the air outlet are oppositely arranged on the left and right sides, the air inlet and outlet channels are small, and the air resistance is large, the process is long, so the fan set with high rotating speed is required, not only power is consumed, but also high noise is generated, especially for a household projector, the distance between the projector and a user is very short, the noise of the projector has great influence on the user experience, and the playing effect of the projector is very poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a heat radiation structure of projector.

The utility model discloses a following technical scheme realizes:

the utility model provides a heat radiation structure of projecting apparatus, heat radiation structure of projecting apparatus includes: the air conditioner comprises a shell, a turbofan, a mounting plate and an LCD screen, wherein a first air inlet, a second air inlet and an air outlet are arranged on the shell, the second air inlet is positioned on one side adjacent to the first air inlet, the air outlet is positioned on one side opposite to the first air inlet, a mounting part is arranged in the shell, the mounting plate is fixedly mounted on the mounting part, a storage cavity is formed between the mounting plate and the mounting part, two air inlet holes are symmetrically arranged on the mounting plate, a first mounting position and two air vent holes are arranged on the mounting part, the two air vent holes are symmetrically arranged on two sides of the first mounting position, the air inlet holes are communicated with the storage cavity, the LCD screen is fixedly mounted on the first mounting position, the air inlet holes are aligned with the air vent holes, two air channels are formed between the air inlet holes and the air vent holes, and the LCD screen is positioned between the two air channels, the utility model discloses a fan, including mounting panel, air inlet chamber, last inlet channel with the fresh air inlet is linked together to the mounting panel, the mounting panel with form the inlet air passageway between the mounting panel, go up the inlet air passageway with the fresh air inlet is linked together, go up the inlet air passageway with the inlet air chamber intercommunication, be equipped with the accepting groove in the casing, the accepting groove respectively with the ventilation hole the air outlet is linked together, turbofan fixed mounting be in the accepting groove, turbofan's air outlet is aimed at the air outlet.

Furthermore, the heat radiation structure of the projector further comprises a circuit board, the circuit board is electrically connected with the turbofan, a mounting column is arranged in the shell, the circuit board is fixedly connected with the mounting column, a ventilation channel is formed between the circuit board and the mounting plate, the ventilation channel is communicated with the upper air inlet channel, and the ventilation channel is communicated with the air inlet hole.

Further, the heat dissipation structure of the projector further includes: preceding rich and rich, the later rich and rich, be equipped with second installation position, third installation position on the mounting, preceding rich and rich fixed mounting is in on the second installation position, later rich and rich fixed mounting is in on the third installation position, two the wind channel is located respectively preceding rich and rich with between the LCD screen, later rich and between the LCD screen.

Further, the heat radiation structure of projecting apparatus still includes the reflector, be equipped with the installation department on the mounting, the reflector accept in accomodate the intracavity, the reflector with installation department fixed connection, the installation department with form the air inlet chamber between the shells inner wall.

Further, the heat radiation structure of projecting apparatus still includes light source subassembly, heating panel, the heating panel fixed mounting be in the casing, the light source subassembly is fixed accept in accomodate the intracavity, light source subassembly one side is just right back phenanthrene, the light source subassembly opposite side with the heating panel butt.

Further, the heat dissipation plate partially covers the air outlet, and the air outlet of the turbofan is aligned with the heat dissipation plate.

Furthermore, the heat dissipation structure of the projector further comprises a lens, one end of the lens is contained in the containing cavity, and the other end of the lens penetrates through the containing cavity and extends out of the shell.

The utility model has the advantages that:

Drawings

Fig. 1 is an exploded view of a heat dissipation structure of a projector according to the present invention;

fig. 2 is a perspective view of a heat dissipation structure of the projector of the present invention;

fig. 3 is another perspective view of the heat dissipation structure of the projector according to the present invention;

fig. 4 is a sectional view of a heat dissipation structure of the projector of the present invention;

FIG. 5 is an enlarged view of the point A in FIG. 4;

FIG. 6 is an enlarged view of the point B in FIG. 4;

fig. 7 is a perspective view of the mounting plate of the present invention;

fig. 8 is a schematic view of the internal structure of the housing according to the present invention.

Detailed Description

For a more clear and complete description of the technical solution of the present invention, the following description is made with reference to the accompanying drawings.

Referring to fig. 1 to 8, the present invention provides a heat dissipation structure of a projector, the heat dissipation structure of the projector includes: casing 10, turbofan 20, mounting panel 30, LCD screen 40, be equipped with first air intake 11, second air intake 12, air outlet 13 on the casing 10, second air intake 12 is located the adjacent one side of first air intake 11, air outlet 13 is located the relative one side of first air intake 11, be equipped with mounting 14 in the casing 10, mounting panel 30 fixed mounting is in on the mounting 14, mounting panel 30 with form between the mounting 14 and accomodate chamber 141, be equipped with the symmetry on the mounting panel 30 and be equipped with two air inlet holes 31, be equipped with first installation position 142 on the mounting 14, two ventilation holes 143, two ventilation hole 143 symmetry sets up first installation position 142 both sides, air inlet hole 31 with accomodate the chamber 141 and be linked together, LCD screen 40 fixed mounting be in on first installation position 142, air inlet hole 31 aligns the ventilation hole 143, the air inlet hole 31 with form two wind channels 144 between the ventilation hole 143, the LCD screen 40 is located two between the wind channels 144, the casing 10 inner wall with form air inlet chamber 145 between the mounting 14, air inlet chamber 145 with first air intake 11, second air intake 12 is linked together, mounting panel 30 with form last inlet air passageway 32 between the casing 10 inner wall, go up inlet air passageway 32 with the air inlet hole 31 is linked together, go up inlet air passageway 32 with air inlet chamber 145 communicates, be equipped with accepting groove 15 in the casing 10, accepting groove 15 respectively with ventilation hole 143 the air outlet 13 is linked together, turbofan 20 fixed mounting be in the accepting groove 15, turbofan 20's air outlet aims at the air outlet 13.

In this embodiment, when in use, the turbofan 20 operates, external air enters the air inlet cavity 145 from the first air inlet 11 and the second air inlet 12, because the second air inlet 12 is located at a side adjacent to the first air inlet 11, air entering the air inlet cavity 145 is gathered in the air inlet cavity 145 to take away a portion of heat in the air inlet cavity 145, because the turbofan 20 operates to generate suction force, the air in the air inlet cavity 145 is sucked into the air duct 144 from the upper air inlet channel 32 and the air inlet holes 31, the air sucked into the air duct 144 takes away heat generated by the LCD panel 40, because spaces of the air inlet cavity 145, the upper air inlet channel 32 and the air inlet holes 31 decrease progressively, air speed entering the air duct 144 is faster, and heat generated by the LCD panel 40 can be taken away, and blow out to outside the casing 10 through the ventilation hole 143, turbofan 20, air outlet 13 for the radiating effect of the heat radiation structure of projector is better, LCD screen 40 can keep working for a long time, the luminance of LCD screen 40 is high, the noise of the heat radiation structure of projector's production is littleer, thereby improves the life of projector.

Further, the heat dissipation structure of the projector further includes a circuit board 50, the circuit board 50 is electrically connected to the turbofan 20, the housing 10 is internally provided with the mounting post 16, the circuit board 50 is fixedly connected to the mounting post 16, a ventilation channel 33 is formed between the circuit board 50 and the mounting plate 30, the ventilation channel 33 is communicated with the upper air inlet channel 32, and the ventilation channel 33 is communicated with the air inlet hole 31.

In this embodiment, because the ventilation channel 33 is formed between the circuit board 50 and the mounting plate 30, the ventilation channel 33 is communicated with the upper air inlet channel 32, the ventilation channel 33 is communicated with the air inlet hole 31, a part of air entering the upper air inlet channel 32 enters the air inlet hole 31 after passing through the ventilation channel 33, another part of air entering the upper air inlet channel 32 directly enters the air inlet hole 31, and the air entering the ventilation channel 33 carries away the air on the circuit board 50, so that the heat dissipation effect of the heat dissipation structure of the projector is better, and the circuit board 50 can keep a better working state.

Further, the heat dissipation structure of the projector further includes: the fixing piece 14 is provided with a second mounting position 146 and a third mounting position 147, the front phenanthrene 41 is fixedly mounted on the second mounting position 146, the rear phenanthrene 42 is fixedly mounted on the third mounting position 147, and the two air ducts 144 are respectively located between the front phenanthrene 41 and the LCD screen 40 and between the rear phenanthrene 42 and the LCD screen 40.

In this embodiment, because the two air ducts 144 are respectively located between the front phenanthrene 41 and the LCD screen 40 and between the rear phenanthrene 42 and the LCD screen 40, heat generated on the front phenanthrene 41 and the rear phenanthrene 42 can be released into the air ducts 144, and is discharged out of the housing 10 along with wind, so that the working states of the front phenanthrene 41 and the rear phenanthrene 42 are better, and the heat dissipation effect of the heat dissipation structure of the projector is better.

Further, the heat radiation structure of the projector further comprises a reflector 43, a mounting portion 148 is arranged on the fixing member 14, the reflector 43 is accommodated in the accommodating chamber 141, the reflector 43 is fixedly connected with the mounting portion 148, and an air inlet chamber 145 is formed between the mounting portion 148 and the inner wall of the shell 10.

In this embodiment, the reflective mirror 43 is fixedly connected to the mounting portion 148, an air inlet chamber 145 is formed between the mounting portion 148 and the inner wall of the housing 10, and heat generated by the reflective mirror 43 can be released into the air inlet chamber 145 through the mounting portion 148, so that the reflective mirror 43 can maintain a better reflective effect, and an imaging effect of the heat dissipation structure of the projector is better.

Further, the heat dissipation structure of the projector further includes a light source assembly 51 and a heat dissipation plate 52, the heat dissipation plate 52 is fixedly installed in the housing 10, the light source assembly 51 is fixedly contained in the containing cavity 141, one side of the light source assembly 51 is opposite to the rear portion 42, and the other side of the light source assembly 51 is abutted to the heat dissipation plate 52.

In this embodiment, since one side of the light source assembly 51 faces the phenanthrene 42, and the other side of the light source assembly 51 abuts against the heat dissipation plate 52, the heat of the light source assembly 51 can be released to the outside through the heat dissipation plate 52.

Further, the heat dissipating plate 52 partially covers the air outlet 13, and the air outlet of the turbofan 20 is aligned with the heat dissipating plate 52.

In the present embodiment, since the heat dissipation plate 52 partially covers the air outlet 13, the air outlet of the turbo fan 20 is aligned with the heat dissipation plate 52, so that the heat dissipation effect of the heat dissipation plate 52 is better.

Further, the heat dissipation structure of the projector further includes a lens 44, one end of the lens 44 is accommodated in the accommodating cavity 141, and the other end of the lens 44 penetrates through the accommodating cavity 141 and extends to the outside of the housing 10.

In this embodiment, the light generated by the light source assembly 51 passes through the rear film 42, the LCD screen 40, the front film 41 and the reflective mirror 43, is reflected by the reflective mirror 43, and then passes through the lens 44 to be irradiated to an external screen for display.

Of course, the present invention can also have other various embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative work, and all of them belong to the protection scope of the present invention.

Claims

1. A heat dissipation structure of a projector, the heat dissipation structure of a projector comprising: the air conditioner comprises a shell, a turbofan, a mounting plate and an LCD screen, wherein a first air inlet, a second air inlet and an air outlet are arranged on the shell, the second air inlet is positioned on one side adjacent to the first air inlet, the air outlet is positioned on one side opposite to the first air inlet, a mounting part is arranged in the shell, the mounting plate is fixedly mounted on the mounting part, a storage cavity is formed between the mounting plate and the mounting part, two air inlet holes are symmetrically arranged on the mounting plate, a first mounting position and two air vent holes are arranged on the mounting part, the two air vent holes are symmetrically arranged on two sides of the first mounting position, the air inlet holes are communicated with the storage cavity, the LCD screen is fixedly mounted on the first mounting position, the air inlet holes are aligned with the air vent holes, two air channels are formed between the air inlet holes and the air vent holes, and the LCD screen is positioned between the two air channels, the utility model discloses a fan, including mounting panel, air inlet chamber, last inlet channel with the fresh air inlet is linked together to the mounting panel, the mounting panel with form the inlet air passageway between the mounting panel, go up the inlet air passageway with the fresh air inlet is linked together, go up the inlet air passageway with the inlet air chamber intercommunication, be equipped with the accepting groove in the casing, the accepting groove respectively with the ventilation hole the air outlet is linked together, turbofan fixed mounting be in the accepting groove, turbofan's air outlet is aimed at the air outlet.

2. The heat dissipation structure of a projector according to claim 1, further comprising a circuit board electrically connected to the turbofan, wherein a mounting post is disposed in the housing, the circuit board is fixedly connected to the mounting post, a ventilation channel is formed between the circuit board and the mounting plate, the ventilation channel is communicated with the upper air inlet channel, and the ventilation channel is communicated with the air inlet hole.

3. The heat dissipation structure of a projector according to claim 1, further comprising: preceding rich and rich, the later rich and rich, be equipped with second installation position, third installation position on the mounting, preceding rich and rich fixed mounting is in on the second installation position, later rich and rich fixed mounting is in on the third installation position, two the wind channel is located respectively preceding rich and rich with between the LCD screen, later rich and between the LCD screen.

4. The heat dissipation structure of a projector according to claim 1, further comprising a reflector, wherein the fixing member is provided with an installation portion, the reflector is accommodated in the accommodation chamber, the reflector is fixedly connected with the installation portion, and an air inlet chamber is formed between the installation portion and the inner wall of the housing.

5. The heat dissipation structure of claim 3, further comprising a light source assembly and a heat dissipation plate, wherein the heat dissipation plate is fixedly mounted in the housing, the light source assembly is fixedly accommodated in the accommodating cavity, one side of the light source assembly faces the rear portion, and the other side of the light source assembly abuts against the heat dissipation plate.

6. The heat dissipating structure of a projector according to claim 5, wherein the heat dissipating plate partially shields the air outlet, and the air outlet of the turbo fan is aligned with the heat dissipating plate.

7. The heat dissipation structure of a projector according to claim 1, further comprising a lens, wherein one end of the lens is accommodated in the accommodating cavity, and the other end of the lens extends out of the housing through the accommodating cavity.