CN209842900U - Multimedia presentation device - Google Patents
Multimedia presentation device Download PDFInfo
- Publication number
- CN209842900U CN209842900U CN201920315524.8U CN201920315524U CN209842900U CN 209842900 U CN209842900 U CN 209842900U CN 201920315524 U CN201920315524 U CN 201920315524U CN 209842900 U CN209842900 U CN 209842900U
- Authority
- CN
- China
- Prior art keywords
- heat
- projector
- heat conduction
- base body
- conduction base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 230000017525 heat dissipation Effects 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910000881 Cu alloy Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 2
- 241000237983 Trochidae Species 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Projection Apparatus (AREA)
Abstract
The utility model provides a multimedia demonstration device, which adjusts the height of a projector by a telescopic device to improve the adaptability to the demonstration environment, meanwhile, compared with the traditional demonstration equipment, the shell of the projector in the demonstration equipment adopts a split structure, wherein one side or two opposite side walls are heat conduction base bodies, such as copper or aluminum alloy, the inner side of the heat conduction base body is fixed with a micro fan to promote the air circulation in the cavity of the projector shell body, the heat sink fixed at the bottom of the outer side of the heat conduction base body exchanges heat between the heat conducted by the heat conduction base body and the outside cold air in time, the heat insulation plate is preferably in a groove shape, air at the bottom end in the groove exchanges heat with the radiating fins, air in the groove circulates in the thermal expansion process, the radiating efficiency is improved, the structure is low in required cost and low in noise, heat in the cavity of the projector shell is effectively conducted, and the service life is prolonged.
Description
Technical Field
The utility model relates to a multimedia presentation equipment.
Background
The multimedia is generally applied, act on the crowd with multiple media information in teaching or meeting, the media of use includes characters, pictures, photos, multiple media information such as sound (including music, pronunciation aside, special audio), animation and film, pass through screen or projector projection display after the organic combination, but in the in-service use process, the projector device is generally fixed, be difficult for adjusting projection height from top to bottom, and gather the heat in operation in-process casing intracavity, long-time operation, intracavity temperature lasts to rise easily leads to the equipment to damage, need to improve.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a multimedia presentation apparatus for solving at least one of the problems described above.
In order to solve the technical problem, the technical scheme of the utility model is that:
the multimedia demonstration device comprises a projector, wherein a shell of the projector is split, the shell wall on at least one side is a heat conduction base body, a heat dissipation assembly is arranged on the heat conduction base body, and the multimedia demonstration device is provided with a heat insulation plate, a plurality of heat dissipation fins and at least one micro fan;
still include telescoping device, the projecting apparatus is fixed to the flexible end.
The height of the projector is adjusted by the aid of the telescopic device, adaptability of the projector to a demonstration environment is improved, and meanwhile compared with the traditional demonstration equipment, the shell of the projector in the demonstration equipment is of a split structure, one side or two opposite side shell walls are heat conduction substrates, such as copper or aluminum alloy, a micro fan is fixed on the inner side face of each heat conduction substrate, ventilation in the cavity of the projector shell is promoted, heat conducted by the heat conduction substrates and cold air outside are exchanged by the fixed radiating fins at the bottom of the outer side face of each heat conduction substrate in time, the heat insulation plates are in a groove shape, air at the bottom of each groove exchanges heat with the radiating fins, and the air in the groove circulates air in the groove, so that the heat dissipation efficiency is improved.
Furthermore, a micro fan is arranged at the top of the gap between the heat insulation plate and the heat conduction substrate, so that the gas circulation in the groove of the heat insulation plate is promoted, and the heat dissipation efficiency is improved.
Furthermore, the left side shell wall and the right side shell wall of the shell of the projector are heat conduction matrixes, and air holes are formed in the top shell wall.
Furthermore, the left and right side shell walls of the shell of the projector are connected with the top and bottom shell walls through fastening bolts.
Furthermore, the outer side surface of the heat conduction base body is provided with a groove, and the radiating fins are inserted and fixed in the groove and are embedded and fixed, so that the installation is convenient.
Furthermore, the telescopic device is a miniature electric push rod, and the telescopic end of the telescopic device is fixedly provided with a mounting seat, so that the noise is low.
The utility model has the advantages that: the multimedia presentation device has the advantages of adjustable height and good heat dissipation.
Drawings
FIG. 1: the utility model discloses a projector shell profile;
FIG. 2: the whole structure chart of the utility model;
in the figure: 1. a miniature electric telescopic rod; 2. a projector; 11. a base; 12. a self-locking wheel; 13. a mounting seat; 21. a thermally conductive substrate; 22. a heat insulation plate; 23. a heat sink; 24. heat conducting wires; 25. a micro fan; 26. an outer convex portion; 27. and (4) air holes.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.
Referring to fig. 1, compared with the conventional projection device, the multimedia presentation device not only comprises a projector 2, but also is additionally provided with a telescopic device, the telescopic end of the telescopic device is fixed on a mounting seat, and the projector is fixed on the mounting seat, so that the projection height can be adjusted, wherein the telescopic device is preferably a miniature electric push rod 1, the operation is convenient, a self-locking wheel 12 is installed on a miniature electric push rod base 11, and a triangular bracket can be additionally provided for improving the stability;
referring to fig. 2, the housing of the projector in the demonstration apparatus is split, in this embodiment, the housing walls on the left and right sides are aluminum alloy type heat conduction base 21, the top housing wall is provided with air holes 27, the bottom housing wall protrudes out from the middle, the corresponding mounting seat 13 is provided with grooves, the protruding portion 26 is embedded in the grooves and fixed by bolts to facilitate butt-joint installation, the left and right housing walls of the housing are connected with the top and bottom housing walls by fastening bolts, the heat conduction base is provided with heat dissipation components, and the heat dissipation components are provided with a heat insulation board 22, a plurality of heat dissipation fins 23 and a micro fan 25, wherein one micro fan is fixed at the bottom of the inner side surface of the heat conduction base 21, namely is located in the housing cavity of the projector, the heat insulation board is fixed with the outer side surface of the heat conduction base in a clearance type, wherein the groove structure is selected for the middle heat, for example, the fin chooses the square structure of 10mm length width for use, 10 one is indulged and is arranged, install the inslot that is used for the installation at heat-conducting base member lateral surface, and personally submit 30 contained angles with the base member, indulge 10 fin tops of arranging and be connected by the heat conduction silk of coiling, the heat transfer and enlarge heat radiating area, do not influence the circulation of air simultaneously, the heat insulating board inslot is dark 12mm, the circulation of gas of being convenient for, install micro-fan 25 on the heat-conducting base member lateral surface of inslot top, further promote the circulation of air.
The height of the projector is adjusted by the aid of the telescopic device, adaptability of the projector to a demonstration environment is improved, and meanwhile compared with the traditional demonstration equipment, the shell of the projector in the demonstration equipment is of a split structure, one side or two opposite side shell walls are heat conduction substrates, such as copper or aluminum alloy, a micro fan is fixed on the inner side face of each heat conduction substrate, ventilation in the cavity of the projector shell is promoted, heat conducted by the heat conduction substrates and cold air outside are exchanged by the fixed radiating fins at the bottom of the outer side face of each heat conduction substrate in time, the heat insulation plates are in a groove shape, air at the bottom of each groove exchanges heat with the radiating fins, and the air in the groove circulates air in the groove, so that the heat dissipation efficiency is improved.
Of course, the above is only a specific application example of the present invention, and the protection scope of the present invention is not limited at all. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (6)
1. The multimedia demonstration device comprises a projector and is characterized in that a shell of the projector is split, the shell wall on at least one side is a heat conduction base body, a heat dissipation assembly is arranged on the heat conduction base body, the projector is provided with a heat insulation plate, a plurality of heat dissipation fins and at least one micro fan, the micro fan is fixed at the bottom of the inner side face of the heat conduction base body, the heat insulation plate and the outer side face of the heat conduction base body are fixed in a clearance mode, the heat dissipation fins are uniformly distributed at the bottom of the outer side of the heat conduction base body;
still include telescoping device, the projecting apparatus is fixed to the flexible end.
2. The multimedia presentation device of claim 1, wherein a micro-fan is positioned on top of the gap between the heat shield and the heat conductive substrate.
3. The multimedia presentation apparatus of claim 1, wherein the left and right side walls of the projector housing are heat conductive bases and the top wall is vented.
4. The multimedia presentation apparatus of claim 3, wherein the left and right side walls of the projector housing are connected to the top and bottom walls by fastening bolts.
5. The multimedia presentation device of claim 1, wherein the thermally conductive substrate has a groove on an outer side thereof, and the heat sink is inserted and fixed in the groove.
6. The multimedia presentation apparatus of claim 1, wherein the telescoping device is a miniature power putter with a telescoping end fixed to a mounting base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920315524.8U CN209842900U (en) | 2019-03-13 | 2019-03-13 | Multimedia presentation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920315524.8U CN209842900U (en) | 2019-03-13 | 2019-03-13 | Multimedia presentation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209842900U true CN209842900U (en) | 2019-12-24 |
Family
ID=68906119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920315524.8U Expired - Fee Related CN209842900U (en) | 2019-03-13 | 2019-03-13 | Multimedia presentation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209842900U (en) |
-
2019
- 2019-03-13 CN CN201920315524.8U patent/CN209842900U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multimedia demonstration equipment Effective date of registration: 20210208 Granted publication date: 20191224 Pledgee: Ningbo Tianjin Enterprise Service Co.,Ltd. Pledgor: NINGBO QTING VISION TECHNOLOGY Co.,Ltd. Registration number: Y2021330000139 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |