CN211454206U - Computer multimedia projection equipment - Google Patents

Abstract

The utility model relates to a computer field. The computer multimedia projection equipment with good heat dissipation performance and compact structure comprises a projector and a terminal controller; the projector comprises a cuboid shell, wherein an installation cavity is arranged in the center of the shell, four vertical ventilation channels are arranged at four corner parts on the periphery of the shell, and the ventilation channels penetrate from the bottom surface of the shell to the top surface of the shell; the side on shell upper portion is provided with the air intake, and the center of shell bottom is provided with the air outlet, air intake and air outlet all communicate with the installation cavity, still be provided with the radiator fan who supplies air outside towards the shell by in the shell in the air outlet. The utility model discloses compact structure, rationally distributed can effectually carry out stable heat dissipation to the bull projecting apparatus, have guaranteed the normal work of bull projecting apparatus.

Description

Computer multimedia projection equipment

Technical Field

The utility model relates to a computer field, concretely relates to computer multimedia projection equipment.

Background

The library is a mechanism for collecting, arranging and collecting book data for people to read and reference, appears 3000 years before the Gongyuan, and has the functions of preserving human cultural heritage, developing information resources, participating in social education and the like. At present, most of traditional libraries are paper libraries, and with the rapid development of information technology and multimedia technology in recent years, the traditional paper libraries can not meet the increasing reading requirements of people more and more.

Therefore, the inventor develops a computer-based reading system suitable for a library, the reading system calls video and image data from a central server unit, and a projector is used for performing four-side three-dimensional display on book videos, pictures and the like in a multi-side projection mode, so that a vivid three-dimensional surrounding effect is generated. The multi-head projector is a large core device of the system, and in the actual use process, the fact that one projector is provided with four or more projection heads which are composed of a large number of electronic elements and optical devices is found, and due to the fact that the arrangement of the projection heads is concentrated, a large amount of heat is generated during work, and the normal work of the projector is seriously affected due to insufficient heat dissipation.

Disclosure of Invention

An object of the utility model is to provide a computer multimedia projection equipment that heat dispersion is good, compact structure.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows: a computer multimedia projection apparatus includes a projector and a terminal controller;

the projector comprises a cuboid shell, wherein an installation cavity is arranged in the center of the shell, four vertical ventilation channels are arranged at four corner parts on the periphery of the shell, and the ventilation channels penetrate from the bottom surface of the shell to the top surface of the shell;

an air inlet is formed in the side face of the upper portion of the shell, an air outlet is formed in the center of the bottom of the shell, the air inlet and the air outlet are communicated with the installation cavity, and a cooling fan which supplies air from the inside of the shell to the outside of the shell is further arranged in the air outlet;

the lower part in the installation cavity is fixedly provided with a square-frame-shaped radiating block, a projection head is arranged in the installation cavity with four opposite outer side surfaces of the radiating block, a heat exchange plate is arranged at the inner end of the projection head and abuts against the radiating block through the heat exchange plate, the outer end of the projection head is a projection end, and the projection end extends out of the shell.

Preferably, a plurality of criss-cross radiating fins are further arranged in the radiating block, and a plurality of vertical radiating channels are formed among the radiating fins.

Preferably, the radiating block and the radiating fin are of an integral structure.

Preferably, the heat dissipation block and the heat dissipation fins are made of any one of copper, aluminum or aluminum alloy.

The beneficial effects of the utility model are concentrated and are embodied in: compact structure, rationally distributed, can effectually carry out stable heat dissipation to the bull projecting apparatus, guaranteed the normal work of bull projecting apparatus. Particularly, the utility model discloses in the course of the work, four projecting heads work can produce certain heat. Because four bights of shell are provided with four vertical ventiduces, and the ventiduct runs through the shell from top to bottom, and the air current in the ventiduct forms updraft with the shell heat exchange, has the chimney effect, so can strengthen the upper and lower convection current of air, and then make the whole cooling of shell. And simultaneously, the utility model discloses radiator fan starts the back, and the air that will install the intracavity is discharged from the air outlet, makes the installation intracavity form the negative pressure, and external cold air is followed the air intake and is mended the installation intracavity. The cold air is through cooling off the radiating block, and then cools off the inner heat exchange plate of projection head, takes away the heat that projection head work produced, so the utility model discloses have fabulous cooling effect to the projection head. In addition, owing to adopt the mode that the negative pressure admitted air, the utility model discloses small in noise just reaches the required power of radiator fan under the prerequisite of same radiating effect lower, more energy-concerving and environment-protective.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a view from direction a-a of the structure shown in fig. 1.

Detailed Description

A computer multimedia presentation device, as shown in connection with fig. 1-3, includes a projector and a terminal controller. The projector is a multi-head projector, namely a projector main body is provided with a plurality of projection heads, and the plurality of projection heads project pictures and video pictures towards projection curtains in a plurality of directions respectively. And the terminal controller is used for being in communication connection with the central server unit and performing unified centralized control on the work of a plurality of projection heads of the multimedia projection equipment.

As shown in fig. 1, the projector includes a housing 1 having a rectangular parallelepiped shape, and the housing 1 is preferably made of stainless steel, aluminum alloy, or the like, and has excellent structural strength and high thermal conductivity of a metal housing to facilitate heat dissipation. The center of shell 1 is provided with installation cavity 2, is used for installing heat dissipation part and projecting head 8 in installation cavity 2. Four vertical air ducts 3 are arranged at four corner positions on the peripheral side of the shell 1, and the air ducts 3 penetrate from the bottom surface of the shell 1 to the top surface of the shell 1.

The utility model discloses in the course of the work, four 8 work of projecting heads can produce certain heats. Because four bights of shell 1 are provided with four vertical ventiduces 3, and ventiduct 3 runs through shell 1 from top to bottom, and the air current in the ventiduct 3 forms updraft with the heat exchange of shell 1, has the chimney effect, so can strengthen the upper and lower convection current of air, and then make the whole cooling of shell 1.

The side of the upper part of the shell 1 is provided with an air inlet 5, the air inlet 5 is designed into a shape of a louver, so that dust in the outside air can be prevented from entering the installation cavity 2, and a filter screen can be arranged at the air inlet 5. The center of shell 1 bottom is provided with air outlet 4, air intake 5 and air outlet 4 all communicate with installation cavity 2, still be provided with in the air outlet 4 by shell 1 in towards the outside radiator fan 6 of shell 1 air supply.

The lower part in the installation cavity 2 is also fixedly provided with a square-frame-shaped heat dissipation block 7, and four installation cavities 2 with opposite outer side surfaces of the heat dissipation block 7 are respectively provided with a projection head 8. The projection head 8 is a photoelectric component capable of independently projecting, and has components such as a light source, a lens, a focusing module and the like, and the specific structure is simpler and is the prior art, and the details are not repeated again.

The inner of projection head 8 is provided with heat exchange plate 9, heat exchange plate 9 can adopt the panel that has high heat conductivity such as copper board or copper alloy board, heat exchange plate 9 is projection head 8's thermal-arrest part, and projection head 8's the inner pastes through heat exchange plate 9 and leans on radiating block 7, forms the heat exchange with radiating block 7. The outer end of the projection head 8 is a projection end, and the projection end extends out of the shell 1.

The utility model discloses radiator fan 6 starts the back, discharges air in the installation cavity 2 from air outlet 4, makes the interior negative pressure that forms of installation cavity 2, and external cold air is followed air intake 5 and is mended in installation cavity 2. The cold air is through cooling off the radiating block 7, and then cools off the inner heat exchange plate 9 of projection head 8, takes away the heat that 8 work of projection head produced, so the utility model discloses have fabulous cooling effect to projection head 8. In addition, owing to adopt the mode that the negative pressure admitted air, the utility model discloses small in noise just reaches the required power of 6 lower, more energy-concerving and environment-protective of radiator fan under the prerequisite of same radiating effect.

On this basis, in order to further improve radiating efficiency, the utility model discloses better way can also be, still be provided with a plurality of vertically and horizontally staggered's fin 10 in the radiating block 7, constitute a plurality of vertical heat dissipation channel 11 between the fin 10. The radiating block 7 and the radiating fins 10 are of an integrated structure, so that the installation is more convenient, and the whole heat conducting performance is better due to no installation connecting seam. Similarly, the heat dissipation block 7 and the heat dissipation fin 10 can be made of any one of copper, aluminum or aluminum alloy, or other materials with high thermal conductivity.

The utility model discloses terminal controller's circuit structure is as follows, terminal controller includes electric connection's host system, wireless communication module, image segmentation module and image signal output module in proper order, wireless communication module is connected with central server unit communication. The image signal output module is electrically connected with the projection driving module 12, and the projection driving module 12 is electrically connected with the projection head 8. As shown in fig. 3, the projection driving module 12 is installed in the installation cavity 2 on the side of the projection head 8.

Claims (4)

1. A computer multimedia projection apparatus is characterized by comprising a projector and a terminal controller;

the projector comprises a cuboid shell (1), a mounting cavity (2) is arranged in the center of the shell (1), four vertical ventilation channels (3) are arranged at four corner positions on the periphery of the shell (1), and the ventilation channels (3) penetrate from the bottom surface of the shell (1) to the top surface of the shell (1);

an air inlet (5) is formed in the side face of the upper portion of the shell (1), an air outlet (4) is formed in the center of the bottom of the shell (1), the air inlet (5) and the air outlet (4) are communicated with the installation cavity (2), and a cooling fan (6) which supplies air from the inside of the shell (1) to the outside of the shell (1) is further arranged in the air outlet (4);

the lower part in installation cavity (2) is the fixed radiating block (7) that is provided with the square frame form still, all be provided with one projection head (8) in four installation cavity (2) that the lateral surface is relative of radiating block (7), the inner of projection head (8) is provided with heat exchange plate (9) to paste through heat exchange plate (9) and lean on radiating block (7), the outer end of projection head (8) is the projection end, the projection end stretches out outside shell (1).

2. The computer multimedia presentation device of claim 1, wherein: a plurality of criss-cross radiating fins (10) are further arranged in the radiating block (7), and a plurality of vertical radiating channels (11) are formed among the radiating fins (10).

3. The computer multimedia presentation device of claim 2, wherein: the radiating block (7) and the radiating fin (10) are of an integrated structure.

4. The computer multimedia presentation device of claim 3, wherein: the radiating block (7) and the radiating fins (10) are made of any one of copper, aluminum or aluminum alloy.

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