WO2011106908A1

WO2011106908A1 - Portable multimedia demonstration device

Info

Publication number: WO2011106908A1
Application number: PCT/CN2010/000267
Authority: WO
Inventors: 阮长根
Original assignee: Ruan Changgen
Priority date: 2010-03-05
Filing date: 2010-03-05
Publication date: 2011-09-09

Abstract

A portable multimedia demonstration device is provided. The device comprises a box body (1), a box cover (2), a mounting device for a projector, a digital exhibition device, a power supply interface, a plurality of multimedia input interfaces (4), a projection reflection mirror (6) and a central control unit (5). The projection reflection mirror (6) is used for reflecting a projection image of the projector. The central control unit (5) is used for controlling and switching the signals inputted by the multimedia input interfaces (4).

Description

Portable multimedia presentation device

The present invention relates to a multimedia audio-visual display device, and more particularly to a portable multimedia presentation device.

Background technique

With the development of science and technology, it is more and more common to use multimedia e-learning or multimedia presentations to conduct various conferences and teaching. People hope to use a variety of distributed multimedia presentation devices conveniently, and the multimedia integration equipment is small. Light weight, low power consumption, full function, low cost and easy to carry. In order to achieve the above objectives, the Chinese invention patent 200520030765. 6 discloses a multimedia teaching device having a box body made of aluminum plastic material, the top of the box is a booth, and an imaging device is arranged above the booth, on the stand. It is provided with a fixing hole for fixing the adjustable bracket of the camera device, a projector and a voice playing device are arranged in the box body, and audio, video signals, power input and output jacks are arranged on the side of the box body, There is also a handle on the other side of the cabinet.

The shortcoming of the above prior art is that the box body is made of aluminum-plastic material, although it is lighter than the weight of the metal material, it is still heavy and is not suitable for carrying; the camera device and the adjustable bracket are located outside the box body, Not only is it troublesome to disassemble each time it is used, the camera device and its brackets need to be stored separately, which is very inconvenient; the projection angle of the projector is fixed, and the projection angle can only be adjusted by moving the cabinet, which is inconvenient to use; the cabinet is closed and no cooling system is provided. The large amount of heat emitted by multimedia devices often causes excessive temperature in the closed box, which can be used for a long time or in the summer, which affects the performance of multimedia devices, and even causes malfunctions and shortens the service life of the devices.

Summary of the invention:

It is an object of the present invention to overcome the above deficiencies and to provide an improved portable multimedia presentation device. The technical solution of the present invention is as follows: A portable multimedia presentation device, comprising a box, a cover, a projector mounting device, a power interface, a multimedia input interface, a projection mirror, a central controller, and a projection mirror for reflection projection Projection image of the machine; the central controller controls the switching of the signal input by the multimedia input interface.

The projection mirror is mounted inside the cover, and an angle adjusting device is disposed between the projection mirror and the plane of the cover.

The angle adjusting device includes a rotating shaft and a support rod.

The housing includes a digital display device, and the digital display device includes a digital lens-support arm. The projector mounting device is disposed on a bottom surface of the case. The 3»T3⁄4K machine 3⁄43⁄4 device is placed on the side of the cabinet.

The projector mounting device S is a pallet, and the pallet includes a projector elevation adjusting device and a projector fixing hole. ,

The elevation adjusting device is a rotating shaft.

The cover plane is divided into upper and lower two parts which are connected to each other, wherein the upper part cover can be folded over and folded on the outer side of the lower part cover.

The box body is provided with a power amplifier, a speaker and a handle. The box body and the box cover are made of engineering plastics, and the multimedia input interface comprises a microphone input, a VGA input, an audio input, and a video input interface.

The beneficial effects of the present invention over the prior art are:

1. The box and cover are made of engineering plastic materials, which are beautiful, light, insulated and easy to carry;

2. The digital lens and the support arm are connected to the box body. It does not need to be disassembled when used. It can be folded inside the box when carrying. The digital lens and the support arm do not need to be stored separately. It is very convenient to use.

3. The projection angle of the projector can be double adjusted by the elevation adjustment device and the projection mirror adjustment device, which is convenient for the operator to use.

4. Through the reflection of the projection mirror, the projection effect of the large-distance large-scale image can be realized, and the teaching display effect is greatly enhanced.

5, multimedia interface is complete, with power amplifier, speaker, further enhance the multimedia display function and effect; with a central controller to facilitate the control of the signal input to the multimedia input interface.

6. When used, the cover is opened and the cabinet is open, which greatly improves the working environment temperature of the multimedia equipment, ensures the long-term or summer performance of the multimedia equipment, avoids equipment failure caused by high temperature, and prolongs the service life of the multimedia equipment.

7. Since the opened cover will obscure the viewing effect of the audience sitting near the cover, the cover cover is divided into upper and lower parts which are connected to each other, and the upper cover can be flipped over the outer part of the lower cover. The viewing effect of the above-mentioned viewers is improved, and the communication between the operator and the audience is more convenient.

BRIEF DESCRIPTION OF THE DRAWINGS:

1 is a schematic structural view of Embodiment 1 of the present invention;

2 is a schematic structural view of Embodiment 2 of the present invention;

Figure 3 is a schematic structural view of a flip box cover of the present invention;

4 is a schematic structural view of a projection mirror angle adjusting device of the present invention.

detailed description:

The wood invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Embodiment 1 : A portable multimedia presentation device as shown in FIG. 1 , comprising a box 1 and a cover 2 The projector installation device, the power interface, the multimedia input interface 4, further includes a central controller 5, a projection mirror 6, the projection mirror 6 is used to reflect the projection image of the projector; and the central controller 5 inputs the multimedia input interface 4. The signal controls the switching action. The projector mounting device includes a pallet 13, a rotating shaft 12, and a projector fixing hole 3. In use, the projector is placed on the pallet 13 and fixed by the fixing hole 3, the rotating shaft 12 is used for adjusting the elevation angle of the projector, the two parts of the rotating shaft 12 are relatively rotated, and a part is connected with the pallet 13, and the part is opposite to the bottom surface of the casing 1. The connection and the reflection of the projection mirror can realize the projection effect of the large-distance large-distance image, and greatly enhance the teaching display effect. A digital display device is arranged in the cover 2, and the digital display device comprises a digital lens 7 and a support arm 8. The digital lens 7 and the support arm 8 are movably connected with the cover 2, and are not required to be disassembled when used, and can be folded and placed in the case when being carried. 1 Internal, digital lens 7, support arm 8 does not need to be stored separately, it is very convenient to use. The box body 1 is provided with a power amplifier 9, a speaker 10, and a handle 11. The box body 1 and the box cover 2 are made of engineering plastics, which are beautiful, light, durable, and easy to carry. The multimedia input interface 4 includes a microphone input, a VGA input, an audio input, a video input interface, a complete multimedia interface, and a power amplifier and a speaker to further enhance the multimedia display function and effect. When in use, the cover 2 is opened, and the box 1 is opened, which greatly improves the working environment temperature of the multimedia device, ensures the long-term or summer performance of the multimedia device, avoids equipment failure caused by high temperature, and prolongs the service life of the multimedia device.

As shown in FIG. 4, the projection mirror 2 angle adjusting device comprises a rotating shaft 3, a supporting rod 1, a projection mirror 2 and a support rod 1 connected thereto, two parts of the rotating shaft 3 relatively rotating, a part of which is connected with the supporting rod 1, and a part of the box The cover is connected in a plane, and the angle of the projection mirror 2 is adjusted by the rotation of the rotary shaft 3. The projection angle of the projector is double adjusted by the elevation adjustment device and the projection mirror adjustment device, which is convenient for the operator.

Embodiment 2: As shown in FIG. 2, it differs from Embodiment 1 in that two portions of the rotating shaft 2 are relatively rotated, one portion is connected to the pallet 1, and a portion is connected to the side of the casing, and the elevation angle of the projector is adjusted by the rotating shaft 2. .

Embodiment 3: As shown in FIG. 1 and FIG. 3, it differs from Embodiment 1 in that the plane of the cover 2 is divided into two upper and lower parts which are connected to each other, wherein the upper part cover can be folded over the lower part by the rotating shaft 14 The outside of the cover. It improves the viewing of the audience sitting near the lid 2 and makes it easier for the operator to communicate with the audience.

In addition to the above-described embodiments, the present invention may be embodied in other embodiments, and the technical solutions formed by equivalent replacement or equivalent transformation are all within the scope of protection of the present invention.

Claims

Rights request

1. A portable multimedia presentation device S, comprising a box body, a box cover, a projector mounting device, a power interface, a multimedia input interface, characterized in that it further comprises a projection mirror, a central controller, and a projection mirror for reflecting the projector The projection image; the central controller controls the switching of the signal input by the multimedia input interface.

2. The portable multimedia presentation device S according to claim 1, wherein the projection mirror is mounted on an inner side of the cover, and an angle between the projection mirror and the plane of the cover is provided. Adjustment device.

3. A portable multimedia presentation device according to claim 2, wherein said angle adjustment device comprises a rotating shaft and a support rod.

4. A portable multimedia presentation device according to claim 1 wherein said housing includes a digital display device, said digital display device comprising a digital lens and a support arm.

5. A portable multimedia presentation device according to claim 1 wherein said projector mounting device is disposed on a bottom surface of said housing.

6. A portable multimedia presentation device according to claim 1, wherein said projector mounting device is disposed on a side of said housing.

7. The portable multimedia presentation device according to claim 1, wherein the projector mounting device is a pallet, and the pallet comprises a projector elevation adjustment device and a projector fixing hole.

8. A portable multimedia presentation device according to claim 7, wherein said elevation adjustment device is a spindle.

9. A portable multimedia presentation device according to claim 1, wherein the cover surface is divided into upper and lower portions that are connected to each other, wherein the upper cover can be folded over the outer side of the lower cover.

10 . The portable multimedia presentation device according to claim 1 , wherein the box is provided with a power amplifier, a speaker, and a handle, wherein the box and the cover are made of engineering plastic, and the multimedia input interface comprises: Microphone input, VGA input, audio input, video input interface.