CN219475976U

CN219475976U - LCD heat radiation structure of projector

Info

Publication number: CN219475976U
Application number: CN202320517536.5U
Authority: CN
Inventors: 李靖; 杨昌昱
Original assignee: Everest Technology Ltd
Current assignee: Everest Technology Ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-08-04
Anticipated expiration: 2033-03-17

Abstract

The utility model discloses an LCD heat radiation structure of a projector, which comprises a heat radiation air channel and a heat radiation fan, wherein the heat radiation air channel is fixedly connected with the heat radiation fan, the heat radiation air channel is at least provided with an air inlet and an air outlet, the heat radiation fan is in sealing connection with the air inlet, the heat radiation air channel comprises an upper air channel and a lower air channel, the upper air channel is fixedly connected with the lower air channel, the air outlet is arranged on the upper surface of the upper air channel and is positioned under each heating component, and at least one guide plate is arranged in each of the upper air channel and the lower air channel. The wind that radiator fan blew into the radiating wind channel passes through the flow direction of a plurality of guide plates guide wind, 3 heating element's that can dispel the heat simultaneously, reduced the noise of projector when reducing radiator fan quantity.

Description

LCD heat radiation structure of projector

Technical Field

The utility model relates to the technical field of projectors, in particular to an LCD heat dissipation structure of a projector.

Background

In the projector with a plurality of LCD panels at present, mainly dispel the heat for the LCD panels separately through a plurality of radiator fans respectively, owing to set up a plurality of fans, not only increased the volume of projector, still increased the noise of projector, seriously influenced the result of use of projector.

Therefore, it is necessary to design a structure for simultaneously radiating heat from a plurality of LCD panels by one heat radiating fan.

Disclosure of Invention

The utility model provides an LCD heat radiation structure of a projector, which simultaneously radiates 3 heating components through a heat radiation air duct, and the technical scheme is as follows:

the utility model provides a LCD heat radiation structure of projector, includes heat dissipation wind channel and radiator fan, heat dissipation wind channel fixed connection radiator fan, the heat dissipation wind channel is equipped with an air intake and an air outlet at least, radiator fan sealing connection the air intake, the heat dissipation wind channel includes wind channel and lower wind channel, wind channel fixed connection the lower wind channel, the air outlet is located the wind channel upper surface is located each heating element under, the wind channel with the inside at least a slice guide plate that all is equipped with of lower wind channel.

Preferably, the number of the air outlets corresponds to the number of the heating components.

Further preferably, the number of the air inlets is 1, and the number of the air outlets is 3.

Preferably, 3 guide plates are arranged in the upper air duct, the first guide plate is used for separating out the first flow channel and the second flow channel, the second guide plate is used for separating out the second flow channel, and the third guide plate is used for separating out the third flow channel in the upper air duct.

Further preferably, 2 flow guide plates are arranged in the lower air duct, the fourth flow guide plate is used for separating out the first flow channel and the second flow channel, and the fifth flow guide plate is used for blocking wind flowing into the third flow channel in the first flow channel.

Still further preferably, the fourth baffle is disposed vertically corresponding to the first baffle, and the fifth baffle is disposed vertically corresponding to the third baffle 43 for blocking the first flow channel and the third flow channel.

Preferably, the upper air duct and the dust cover of the cooling fan are integrally designed.

Preferably, the upper air duct is in snap connection with the lower air duct.

Preferably, the heat generating component is an LCD panel and an optical filter.

The utility model has the beneficial effects that: the LCD heat radiation structure of the projector can simultaneously radiate 3 heating components by guiding the wind blown into the heat radiation air channel by the heat radiation fan to flow through the plurality of guide plates, and reduces the noise of the projector while reducing the quantity of the heat radiation fans.

Drawings

FIG. 1 is an exploded view of an LCD heat dissipation structure of a projector according to the present utility model;

FIG. 2 is a schematic flow diagram of a fan in a heat dissipation duct according to the present utility model;

FIG. 3 is a bottom view of the upper tunnel of the present utility model;

fig. 4 is a schematic structural view of the lower duct of the present utility model.

In the figure: 1. the heat dissipation air duct, 10, an air inlet, 11, a first flow channel, 12, a second flow channel, 13, a third flow channel, 2, a heat dissipation fan, 3, a heating component, 4, an upper air duct, 41, a first guide plate, 42, a second guide plate, 43, a third guide plate, 5, a lower air duct, 51, a fourth guide plate, 52, a fifth guide plate, 6, a dust cover, 7, an air outlet, 71, a first air outlet, 72, a second air outlet, 73 and a third air outlet.

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, and it is apparent that the described embodiments of the present utility model are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present utility model, are within the scope of the present utility model.

The utility model is further described with reference to fig. 1, the LCD heat dissipation structure of the projector comprises a heat dissipation air duct 1 and a heat dissipation fan 2, the heat dissipation air duct 1 is fixedly connected with the heat dissipation fan 2, the heat dissipation air duct 1 is at least provided with an air inlet 10 and an air outlet 7, the heat dissipation fan 2 is in sealing connection with the air inlet 10, the heat dissipation air duct 1 comprises an upper air duct 4 and a lower air duct 5, the upper air duct 4 is fixedly connected with the lower air duct 5, the air outlet 7 is arranged on the upper surface of the upper air duct 4 and is positioned under each heating component 3, and at least one flow guide plate is arranged inside the upper air duct 4 and the lower air duct 5.

In this embodiment, the number of the air inlets 10 is 1, and the number of the air outlets 7 is 3. Each air outlet 7 corresponds to each heating component 3 in turn, the first air outlet 71 is located directly under the green LCD panel, the second air outlet 72 is located directly under the blue LCD panel, and the third air outlet 73 is located directly under the red LCD panel.

Wherein, the air outlets 7 are respectively provided with an air outlet nozzle, and the air outlet nozzles can be rectangular.

The utility model will be further described with reference to fig. 3, wherein 3 flow guide plates are disposed in the upper air duct 4, a first flow guide plate 41 is used for separating the first flow channel 11 from the second flow channel 12, a second flow guide plate 42 is used for separating the second flow channel 12, and a third flow guide plate 43 is used for separating the third flow channel 13 in the upper air duct 4.

For further explanation of the present utility model with reference to fig. 4, 2 flow deflectors are disposed in the lower duct 5, a fourth flow deflector 51 is used for separating the first flow passage 11 from the second flow passage 12, and a fifth flow deflector 52 is used for blocking the wind flowing into the third flow passage 13 in the first flow passage 11.

The fourth baffle 51 is disposed vertically corresponding to the first baffle 41, and the fifth baffle 52 is disposed vertically corresponding to the baffle for blocking the first flow channel 11 and the third flow channel 13 in the third baffle 43.

Referring to fig. 2 to 4, since the green LCD panel is most easily damaged, the first flow channel 11 supplies air to the first air outlet 71 alone, and the second flow channel 12 supplies air to the second air outlet 72 and the third air outlet 73 separately; since the third flow channel 13 is provided in the second flow channel 12, the initial width of the second flow channel 12 is about twice the initial width of the first flow channel 11, the final width of the first flow channel 11 is identical to the final width of the third flow channel 13, and the second flow channel 12 is slightly larger than the first flow channel 11 due to the second flow guide plate 42 provided in the second flow channel 12.

In this embodiment, the upper duct 4 is integrally designed with the dust cover 6 of the cooling fan 2. The dust sucked by the cooling fan 2 is reduced, the production and manufacturing cost is reduced, and the tightness between the air inlet 10 and the air outlet 7 of the fan is improved.

In this embodiment, the upper air duct 4 is connected to the lower air duct 5 in a snap-fit manner. The upper air duct 4 is convenient to detach when the dust in the heat dissipation air duct 1 is cleaned later.

In this embodiment, the heat generating component 3 is an LCD panel and a filter.

The working principle is further described with reference to fig. 2: the structure sucks the air outside the projector into the radiator fan 2 through the radiator fan 2, the radiator fan 2 blows the sucked air into the radiator air duct 1, the air is divided into left and right two parts along the vertical direction through a first guide plate 41 in the upper air duct 4 and a fourth guide plate 51 in the lower air duct 5, the right part of the air flows into the first flow channel 11, the left part of the air flows into the second flow channel 12, and the air in the first flow channel 11 directly flows out from the first air outlet 71 through the obstruction of a third guide plate 43 in the upper air duct 4 and a fifth guide plate 52 in the lower air duct 5, and simultaneously dissipates heat for the green LCD panel and the filter thereof; the wind in the second flow channel 12 continues to flow along the directions of the first guide plate 41 and the fifth guide plate 52, the wind in the upper air channel 4 in the flow channel is divided into two parts by the second guide plate 42 in the upper air channel 4, the wind in the flow channel is divided into an upper layer and a lower layer along the horizontal direction because no guide plate is arranged in the lower air channel 5, the wind in the upper layer flows along the direction of the second guide plate 42, and is blocked by the third guide plate 43 to directly flow out from the second air outlet 72, so that the blue LCD panel and the optical filter thereof can dissipate heat simultaneously; the air at the lower layer in the lower air duct 5 in the second flow channel 12 flows into the third flow channel 13 along the directions of the fourth guide plate 51 and the fifth guide plate 52, and directly flows out of the third air outlet 73 through the radian barrier at the tail end of the lower air duct 5, so that heat is dissipated to the red LCD panel and the optical filter of the red LCD panel.

The utility model is not only suitable for heat dissipation of the LCD panel of the projector, but also suitable for a circuit board needing local heat dissipation.

Claims

1. An LCD heat radiation structure of projector, its characterized in that: including heat dissipation wind channel and radiator fan, heat dissipation wind channel fixed connection radiator fan, the heat dissipation wind channel is equipped with an air intake and an air outlet at least, radiator fan sealing connection the air intake, the heat dissipation wind channel includes wind channel and lower wind channel, wind channel fixed connection the lower wind channel, the air outlet is located the wind channel upper surface is located each heating element under, the wind channel with the inside at least a slice guide plate that all is equipped with of lower wind channel.

2. The LCD heat dissipation structure of the projector according to claim 1, wherein: the number of the air outlets corresponds to the number of the heating components.

3. The LCD heat dissipation structure of a projector according to claim 1 or 2, wherein: the number of the air inlets is 1, and the number of the air outlets is 3.

4. The LCD heat dissipation structure of the projector according to claim 1, wherein: the upper air duct is internally provided with 3 guide plates, the first guide plates are used for separating out a first flow channel and a second flow channel, the second guide plates are used for separating out the second flow channel, and the third guide plates are used for separating out a third flow channel in the upper air duct.

5. The LCD heat dissipation structure of the projector according to claim 4, wherein: the lower air duct is internally provided with 2 guide plates, the fourth guide plate is used for separating out the first flow channel and the second flow channel, and the fifth guide plate is used for blocking wind flowing into the third flow channel in the first flow channel.

6. The LCD heat dissipation structure of the projector according to claim 5, wherein: the fourth flow guide plate is arranged up and down correspondingly to the first flow guide plate, and the fifth flow guide plate is arranged up and down correspondingly to the flow guide plate used for blocking the first flow channel and the third flow channel in the third flow guide plate.

7. The LCD heat dissipation structure of the projector according to claim 1, wherein: the upper air duct and the dust cover of the cooling fan are integrally designed.

8. The LCD heat dissipation structure of the projector according to claim 1, wherein: the upper air duct is connected with the lower air duct in a buckling manner.

9. The LCD heat dissipation structure of the projector according to claim 1, wherein: the heating components are an LCD panel and an optical filter.