CN218547226U

CN218547226U - Liquid crystal projector with heat dissipation mechanism

Info

Publication number: CN218547226U
Application number: CN202223043982.1U
Authority: CN
Inventors: 侯忠国; 佘玉松
Original assignee: Sichuan Changhong Electric Co Ltd
Current assignee: Sichuan Changhong Electric Co Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-02-28
Anticipated expiration: 2032-11-16

Abstract

The utility model discloses a liquid crystal projection optical machine with a heat dissipation mechanism, which comprises a heat dissipation sheet, a projection cover body and a radiator, wherein the projection cover body is covered by a projection left cover body and a projection right cover body; the front end of the projection cover body is embedded with an LCD screen and the upper end of an LCD screen bracket which are bonded with each other, and the lower end of the LCD screen bracket is flexibly curled between the projection cover body and the radiator; one end of the radiating fin is arranged between the LCD screen and the LCD screen support, and the other end of the radiating fin is attached to the lower end of the LCD screen support, arranged between the lower end of the LCD screen support and the radiator and extends out of the projection cover body through the thin opening. The utility model discloses a heat conduction on the inside LCD screen of projection lid to the projection lid of fin is external, accomplishes the heat exchange through convection current and the outer cold air of projection lid to reduce the temperature of LCD screen, improve the luminance and the life of liquid crystal projection ray apparatus.

Description

Liquid crystal projector with heat dissipation mechanism

Technical Field

The utility model relates to a projection equipment technical field, concretely relates to liquid crystal projection ray apparatus with heat dissipation mechanism.

Background

In recent years, diversified situations of development of domestic projection markets are obvious, business office, cultural entertainment, education training, household use and the like are developed towards the direction of small and exquisite and attractive appearance of projection equipment, but at present, a mainstream projector mostly adopts display modes such as DLP (digital light processing), LCOS (liquid Crystal display), 3LCD (liquid Crystal display), and the like, particularly for a projector adopting a single LCD scheme, the LCD projector needs to dissipate heat during installation and use, and thus the reduction of the service life of the LCD projector caused by overheating is avoided. The LCD screen is used as a core display device, and in order to ensure the service life of the display device and the display effect of the display device, heat dissipation is also needed; however, the heat dissipation problem of the LCD projector is solved by providing various heat sinks; however, the problem of heat dissipation of the LCD screen, which is a core display device, is not solved, so that the service life of the LCD screen is affected, the brightness of the LCD projector cannot be increased, and the LCD projector product is at a low end in the industry.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid crystal projection optical machine with heat dissipation mechanism to can't effectively dispel the heat to the LCD screen that exists in the solution background art in hope, thereby influence the result of use and the technical problem in life-span of LCD screen.

The utility model adopts the technical scheme as follows:

a liquid crystal projector with a heat dissipation mechanism comprises a heat dissipation sheet, a projection cover body and a heat sink, wherein the projection cover body is covered by a projection left cover body and a projection right cover body; the front end of the projection cover body is embedded with an LCD screen and the upper end of an LCD screen bracket which are bonded with each other, and the lower end of the LCD screen bracket is flexibly curled between the projection cover body and the radiator; one end of the radiating fin is arranged between the LCD screen and the LCD screen support, and the other end of the radiating fin is attached to the lower end of the LCD screen support, arranged between the lower end of the LCD screen support and the radiator and extends out of the projection cover body through the thin opening.

As a further technical scheme, a groove avoiding the radiator is formed on the radiator and communicated with the thin opening through the groove.

As a further technical scheme, the radiating fin is arranged between the LCD screen and the LCD screen bracket through a heat-conducting double-sided adhesive tape.

As a further technical scheme, the heat sink comprises an adhesive part, a bent part and an extending part, wherein the adhesive part is of a square frame-shaped structure and is attached to four sides of the LCD screen through the square frame-shaped structure, and the bent part is connected between the adhesive part and the extending part, is positioned at the bottom of the square frame-shaped structure and is flexibly curled along with the lower end of the LCD screen support; the extending part is perpendicular to the bending part and extends out of the projection cover body through a thin opening formed between the radiator and the projection right cover body.

Advantageous effects

The utility model discloses a heat conduction on the inside LCD screen of projection lid to the projection lid of fin is external, accomplishes the heat exchange through convection current and the outer cold air of projection lid to reduce the temperature of LCD screen, improve the luminance and the life of liquid crystal projection ray apparatus.

Drawings

Fig. 1 is an exploded view of a liquid crystal projector with a heat dissipation mechanism according to an embodiment of the present invention;

FIG. 2 is an exploded view of the projection cover in the present embodiment;

FIG. 3 is a schematic view of the assembly of the LCD panel assembly and the heat sink in this embodiment;

fig. 4 is a schematic structural diagram of the heat sink in this embodiment.

Illustration of the drawings:

1-a heat sink; 2-LCD screen; 3-LCD screen support; 4-projecting the right cover body; 5-projecting the left cover body; 6-a radiator; 61-an adhesive portion; 62-bending part; 63-an extension.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

On the contrary, this application is intended to cover any alternatives, modifications, equivalents, and alternatives that may be included within the spirit and scope of the application as defined by the appended claims. Furthermore, in the following detailed description of the present application, certain specific details are set forth in order to provide a better understanding of the present application. It will be apparent to one skilled in the art that the present application may be practiced without these specific details.

Example 1;

the structure of a liquid crystal projector optical engine with a heat dissipation mechanism according to an embodiment of the present application will be described in detail below with reference to fig. 1 to 4. It should be noted that the following examples are merely illustrative of the present application and are not intended to limit the present application.

A liquid crystal projector with a heat dissipation mechanism comprises a heat dissipation fin 1 and a projection cover body covered by a projection left cover body 5 and a projection right cover body 4, wherein a radiator 6 is arranged at the lower end of the projection cover body, and at least one thin opening is formed between the radiator and the projection right cover body and/or the projection left cover body; the front end of the projection cover body is embedded with the upper ends of an LCD screen 2 and an LCD screen bracket 3 which are adhered with each other, and the lower end of the LCD screen bracket is flexibly curled between the projection cover body and the radiator; one end of the radiating fin is arranged between the LCD screen and the LCD screen support, and the other end of the radiating fin is attached to the lower end of the LCD screen support, arranged between the lower end of the LCD screen support and the radiator and extends out of the projection cover body through the thin opening.

Referring to fig. 1, an explosion diagram of a liquid crystal projector with a heat dissipation mechanism is shown, in which two types of arrangement of a heat dissipation plate 1 facing a heat dissipation device and a projection right cover and a heat dissipation device and a projection left cover are shown.

Furthermore, a groove avoiding the radiating fins is formed on the radiator and communicated with the thin opening through the groove, so that the position of the radiating fins is limited to a certain extent, and the radiating fins can extend out through the thin opening conveniently.

Preferably, the radiating fins are arranged between the LCD screen and the LCD screen bracket through the heat-conducting double-sided adhesive tape, and the radiating fins are respectively bonded with the LCD screen and the LCD screen bracket through the heat-conducting double-sided adhesive tape so as to be embedded in the projection cover body together for position limitation; the radiating fins can be made of composite materials mainly made of graphene materials, so that the radiating effect of the radiating fins is improved.

In this embodiment, specifically, the heat sink 6 includes an adhesive portion 61, a bending portion 62, and an extending portion 63, which are sequentially connected, where the adhesive portion 61 is a square frame structure, and is attached to four sides of the LCD screen through the square frame structure, so that the display effect of the LCD screen is not affected while the LCD screen is effectively cooled; the bending part 62 is connected between the bonding part and the extending part, is positioned at the middle position of the bottom of the square frame-shaped structure, certainly can not be arranged at the middle position of the bottom, and can be flexibly curled at other positions along with the lower end of the LCD screen bracket; the extending portion 63 is perpendicular to the bending portion, and extends out of the projection cover body through a thin opening between the radiator and the projection right cover body or the projection left cover body.

When the LCD screen assembly is installed, firstly, the radiating fins are attached to the back surface of the LCD screen through the heat-conducting double-sided adhesive, and then the LCD screen attached with the radiating fins is installed on the LCD screen support through the heat-conducting double-sided adhesive to form the LCD screen assembly; the LCD screen component is installed and embedded in the left projection cover body, and the lower end of the LCD screen support and the bent part of the radiating fin are arranged on the lower side of the left projection cover body; covering the projection right cover body on the projection left cover body, and fixing through screws to complete installation of the projection cover body; then, after the lower end of the LCD screen support, the bent part and the extending part of the radiating fin are attached to the wall of the projection cover body and are flexibly curled, the radiator is covered on the lower end of the projection cover body, the extending part of the radiating fin extends out through the thin openings of the radiator and the projection right cover body or the projection left cover body, the extending part of the radiator can be attached to the outer surface of the radiator for radiating, and when the extending part of the radiator is attached to the outer surface of the radiator, the extending part of the radiator can be directly attached to the fin of the radiator.

The utility model discloses a liquid crystal projection ray apparatus with heat dissipation mechanism, heat conduction on with the inside LCD screen of projection lid outside the projection lid through the fin accomplishes the heat exchange through convection current and the outer cold air of projection lid to reduce the temperature of LCD screen, improve the luminance and the life of liquid crystal projection ray apparatus.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A liquid crystal projection optical machine with a heat dissipation mechanism is characterized by comprising a heat dissipation fin, a projection cover body and a heat sink, wherein the projection cover body is covered by a projection left cover body and a projection right cover body; the front end of the projection cover body is embedded with an LCD screen and the upper end of an LCD screen bracket which are bonded with each other, and the lower end of the LCD screen bracket is flexibly curled between the projection cover body and the radiator; one end of the radiating fin is arranged between the LCD screen and the LCD screen support, and the other end of the radiating fin is attached to the lower end of the LCD screen support, arranged between the lower end of the LCD screen support and the radiator and extends out of the projection cover body through the thin opening.

2. The liquid crystal projector as claimed in claim 1, wherein the heat sink has a recess formed therein to avoid the heat sink, and the recess is connected to the thin opening.

3. The liquid crystal projector engine with heat dissipation mechanism of claim 1, wherein the heat sink is disposed between the LCD panel and the LCD panel bracket via a double-sided thermal adhesive tape.

4. The liquid crystal projector as claimed in any of claims 1 to 3, wherein the heat sink comprises an adhesive portion, a bending portion and an extending portion, wherein the adhesive portion is a square frame structure and is attached to four sides of the LCD panel via the square frame structure, and the bending portion is connected between the adhesive portion and the extending portion, is located at the bottom of the square frame structure, and is flexibly curled along with the lower end of the LCD panel support; the extending part is perpendicular to the bending part and penetrates through a thin opening between the radiator and the projection right cover body to extend out of the projection cover body.