CN211267007U - Portable digital media projection equipment - Google Patents
Portable digital media projection equipment Download PDFInfo
- Publication number
- CN211267007U CN211267007U CN202020406624.4U CN202020406624U CN211267007U CN 211267007 U CN211267007 U CN 211267007U CN 202020406624 U CN202020406624 U CN 202020406624U CN 211267007 U CN211267007 U CN 211267007U
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- CN
- China
- Prior art keywords
- heat dissipation
- projection device
- dissipation plate
- digital media
- portable digital
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- 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
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- 239000004065 semiconductor Substances 0.000 claims abstract description 25
- 238000005057 refrigeration Methods 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 230000017525 heat dissipation Effects 0.000 claims description 52
- 230000001681 protective effect Effects 0.000 claims description 19
- 230000005855 radiation Effects 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 7
- 241000237983 Trochidae Species 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000005679 Peltier effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a portable digital media projection equipment, have the rectangular bodily form lag of open-ended and insert the projection arrangement in the lag including the top, projection arrangement's shell top is provided with the sealing washer of edge in round and the lag top opening, the bottom of lag is provided with the mini ball valve with external intercommunication, be provided with the cooling surface semiconductor refrigeration piece outwards on the top inner shell lateral wall of exhaust chamber one end, the top shell lateral wall of the exhaust chamber other end is provided with the air inlet, the air inlet below is fixed with horizontally top metal cooling plate, leave the space between metal cooling plate and the vertical semiconductor refrigeration piece, and the projector lamp is installed on the horizontal part of T shape heating plate, be provided with multiunit radiator fan between the horizontal part of T shape heating plate and the metal cooling plate. The utility model effectively improves the waterproof and dustproof effects when the projector is carried; the circuit board and the projection lamp of the main heating component can dissipate heat in all directions.
Description
Technical Field
The utility model relates to a projector, a portable digital media projection equipment specifically says so.
Background
With the continuous development and progress of microcircuits and projection lamps, the existing projection equipment is smaller and smaller, such as a model M200 and M100S projector of a brand micro-microphone, a Tianmao magic screen N1 projector, a Jimi PLAy projector and the like, and mainly comprises a projector circuit, a projector lamp, a rechargeable battery and a cooling fan for cooling the circuit and the projector lamp, so that the portable digital projection equipment can meet the digital projection requirements of teaching, office and entertainment. However, the above-mentioned projection equipment generally has a serious problem of generating heat, and especially in the indoor environment where the ambient temperature is high and the air fluidity is poor, the projection equipment can be overheated and crashed after being used for a period of time, which affects the use, and the main reason is still not good enough in the aspect of heat dissipation.
SUMMERY OF THE UTILITY MODEL
To solve the above problems, it is an object of the present invention to provide a portable digital media projection device.
In order to achieve the above purpose, the technical scheme of the utility model is that: a portable digital media projection device comprises a rectangular protective sleeve with an opening at the top and a projection device inserted in the protective sleeve, wherein the top of an outer shell of the projection device is provided with a circle of sealing ring which is tightly contacted with the inner edge of the opening at the top of the protective sleeve, the bottom of the protective sleeve is provided with a mini ball valve communicated with the outside, the inside of the outer shell is supported by an inner shell through a supporting column, a U-shaped exhaust cavity is formed between the bottom of the inner shell and the bottom of the outer shell, the side wall of the inner shell at the top of one end of the exhaust cavity is provided with a semiconductor refrigerating sheet with an outward radiating surface, the outer shell at the position of the semiconductor refrigerating sheet is provided with an exhaust port, the side wall of the outer shell at the top of the other end of the exhaust cavity is provided with an air inlet, a horizontal top metal heat radiating plate is fixed below the air inlet, and the projector lamp is installed on the horizontal part of the T-shaped heat dissipation plate, the vertical part of the T-shaped heat dissipation plate is tightly attached to the refrigerating surface of the semiconductor refrigerating sheet, a plurality of groups of heat dissipation fans are arranged between the horizontal part of the T-shaped heat dissipation plate and the metal heat dissipation plate, the heat dissipation fans exhaust air to the first air vent at the air inlet end of the exhaust cavity, the projection device circuit board is fixed on the lower surface of the horizontal part of the T-shaped heat dissipation plate, a charging port is arranged at the bottom of the inner shell and is electrically connected with a charging battery at the rear part, the charging battery is electrically connected with the projection device circuit board, the heat dissipation fans, the semiconductor refrigerating sheet is electrically connected with a fan interface of the projection device circuit.
Further, the top of the protective sleeve is provided with a rotary handle.
Further, a pull-out handle is arranged at the top of the shell of the projection device.
Furthermore, the bottom of the protective sleeve is provided with a fixed inserting cylinder for inserting into the bottom of the shell of the projection device.
Furthermore, a bottom heat dissipation fan is arranged between the lower surface of the horizontal part of the T-shaped heat dissipation plate and the rechargeable battery, a plurality of vertical air vents are arranged at the connecting part of the horizontal part and the vertical part of the T-shaped heat dissipation plate, and the bottom heat dissipation fan blows air to the direction of the second air vent below the first air vent.
Furthermore, the exhaust port and the air inlet are respectively covered with a layer of filter screen.
Through the arrangement, the projection device is sealed through the mini ball valve and the sealing strip on the edge of the top of the projection device, so that the projection device is in a closed space, and the waterproof and dustproof effects of the projection device during carrying are effectively improved; the inboard of semiconductor refrigeration piece is colder, it is lower to make T shape heating panel temperature, thereby the heat that effective absorption projector lamp and circuit board gived off, in addition, every fan work, radiating air current has been formed, play better cooling radiating effect, the all-round heat dissipation of circuit board and main heating part projecting lamp has been realized, the air is finally discharged from the gas vent, and the face that generates heat of gas vent position correspondence semiconductor refrigeration piece, can form the air current of the inside heating part of cooling, can cool down to the refrigeration part again, make full use of exhaust wind energy.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic structural view of the utility model in use;
fig. 3 is a schematic diagram of the internal structure of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present embodiment is described in detail below with reference to the accompanying drawings:
this embodiment provides a portable digital media projection device, please refer to fig. 1-3 in the drawings of the specification together.
As shown in figures 1-3, the portable digital media projection device comprises a cuboid-shaped protective sleeve 1 with an opening at the top and a projection device inserted in the protective sleeve 1, wherein a circle of sealing ring 3 which is tightly contacted with the inner edge of the opening at the top of the protective sleeve 1 is arranged at the top of an outer shell 2 of the projection device, a mini ball valve 4 (such as a mini ball valve produced by Yuhuan county Zhenhuan water heating equipment Limited company, the specification is 1 minute, 2 minutes, 3 minutes and 4 minutes, the material is brass, the pressure resistance is 16 kilograms, 1.6 MPA), an inner shell 6 is supported in the outer shell 2 through a supporting column 5, a U-shaped exhaust cavity 7 is formed between the bottom of the inner shell 6 and the bottom of the outer shell 2, a semiconductor refrigeration sheet 8 with an outward radiation surface is arranged on the side wall of the inner shell 6 at one end of the exhaust cavity 7, an exhaust port 9 is arranged on the outer shell 2, an air inlet 10 is arranged on the side wall of the top outer shell 2 at the other end of the exhaust cavity 7, a horizontal top metal heat dissipation plate 11 is fixed below the air inlet 10, a gap 12 is reserved between the metal heat dissipation plate 11 and a vertical semiconductor refrigeration sheet 8, a projector lamp 13 is arranged below the metal heat dissipation plate 11, a gap 12 is reserved between the metal heat dissipation plate 11 and the projector lamp 13, the projector lamp 13 is arranged on the horizontal part of the T-shaped heat dissipation plate 14, the vertical part of the T-shaped heat dissipation plate 14 is tightly attached to the refrigeration surface of the semiconductor refrigeration sheet 8, a plurality of groups of heat dissipation fans 15 are arranged between the horizontal part of the T-shaped heat dissipation plate 14 and the metal heat dissipation plate 11, the heat dissipation fans 15 exhaust air to a first air vent 16 at the air inlet end of the exhaust cavity 7, a projector circuit board 17 is fixed on the lower surface of the horizontal part of the T-shaped heat dissipation plate 14, radiator fan 15, semiconductor refrigeration piece 8 connects with the fan interface electricity of projection arrangement circuit board 17 after parallelly connected, projection arrangement's button is located the rear side lateral wall of shell 2, projector lamp 13 then is located the front side lateral wall, it has one deck filter screen 25 to cover respectively on gas vent 9 and the air inlet 10, the dust gets into when effectively preventing to use, projector lamp 13 cooperates there is the DLP module (the device that small-size projecting apparatus used always at present promptly), can be directly with the circuit of the small-size projecting apparatus commonly used at present, the projecting part uses.
For more convenient hand carrying, the top of the protective sleeve 1 is provided with a rotary handle 19.
In order to facilitate the pulling out of the projection device, a pull-out handle 20 is provided on the top of the housing 2 of the projection device.
In order to make full use of the protective sleeve 1, the bottom of the protective sleeve 1 is provided with a stationary insert 21 for inserting into the bottom of the housing 2 of the projection device, so that the protective sleeve 1 can be used as a base for support, as shown in fig. 2.
In order to make the circuit board have good heat dissipation effect, a bottom heat dissipation fan 22 is arranged between the lower surface of the horizontal part of the T-shaped heat dissipation plate 14 and the rechargeable battery 18, a plurality of vertical air vents 23 are arranged at the connection part of the horizontal part and the vertical part of the T-shaped heat dissipation plate 14, and the bottom heat dissipation fan 22 blows air to the direction of a second air vent 24 below the first air vent 16.
When pulling out projection arrangement or putting into, open mini ball valve 4, make projection arrangement and 1 bottom of lag and external intercommunication to get into the air when being convenient for pull out, discharge air when putting into, put into projection arrangement after, close mini ball valve 4, seal projection arrangement through the sealing strip at mini ball valve 4 and projection arrangement top edge, make projection arrangement be in airtight space, thereby waterproof, dustproof effect when effectively improving projection arrangement's carrying.
When the projector is used, the projection part works for projection, and simultaneously, the heat dissipation part also works, namely, each fan and the semiconductor refrigeration piece 8 (such as TEC1-12706 semiconductor refrigeration piece produced by the Shanghai east electronics limited company, the semiconductor refrigeration piece has various sizes and is very suitable for the use of the utility model), the inner side of the semiconductor refrigeration piece 8 is cooler, so that the temperature of the T-shaped heat dissipation plate 14 is lower, thereby effectively absorbing the heat dissipated by the projector lamp 13 and the circuit board, and playing a better cooling and heat dissipation effect, in addition, each fan works to form a flow channel which is formed by the air inlet 10 → the upper surface of the metal heat dissipation plate 11 → the gap 12 → the projector lamp 13 → the heat dissipation fan 15 → the first air vent 16 → the exhaust cavity 7 → the exhaust port 9, and after passing through the gap 12, part of air is from the gap 12 → the circuit board 17 of the projection device → the bottom heat dissipation fan, as shown by arrows in figure 3, the omnibearing heat dissipation of the circuit board and the projection lamp of the main heating component is realized, the whole heat dissipation effect is greatly improved by combining with refrigeration, in addition, air is finally exhausted from an exhaust port 9, the part of the exhaust port 9 corresponds to the heating surface of a semiconductor refrigeration sheet 8, the semiconductor refrigeration sheet 8 is also called a thermoelectric refrigeration sheet, the heat pump is a heat pump, the heat pump has the advantages that no sliding component is arranged, the heat pump is applied to occasions with limited space, high reliability requirement and no refrigerant pollution, the Peltier effect of the semiconductor material is utilized, when direct current passes through a galvanic couple formed by connecting two different semiconductor materials in series, the two ends of the galvanic couple can respectively absorb heat and emit heat, the refrigeration purpose can be realized, therefore, the heating and the cooling are simultaneously carried out, the heat of the heating surface is conveniently exhausted, the air flow for cooling the internal heating component can be formed, and the cooling component can, the discharged wind energy is fully utilized.
Of course, the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. A portable digital media projection device, characterized by: the projector comprises a cuboid-shaped protective sleeve (1) with an opening at the top and a projector inserted in the protective sleeve (1), wherein a circle of sealing ring (3) which is tightly contacted with the inner edge of the top opening of the protective sleeve (1) is arranged at the top of an outer shell (2) of the projector, a mini ball valve (4) communicated with the outside is arranged at the bottom of the protective sleeve (1), an inner shell (6) is supported in the outer shell (2) through a supporting column (5), a U-shaped exhaust cavity (7) is formed between the bottom of the inner shell (6) and the bottom of the outer shell (2), a semiconductor refrigerating sheet (8) with an outward radiating surface is arranged on the side wall of the inner shell (6) at the top of one end of the exhaust cavity (7), an exhaust port (9) is arranged on the outer shell (2) at the position of the semiconductor refrigerating sheet (8), an air inlet (10) is arranged on the side wall of the outer shell (2) at, a gap (12) is reserved between the metal heat dissipation plate (11) and the vertical semiconductor refrigeration sheet (8), a projector lamp (13) is arranged below the metal heat dissipation plate (11), the metal heat dissipation plate (11) and the projector lamp (13) are also reserved with the gap (12), the projector lamp (13) is arranged on the horizontal part of the T-shaped heat dissipation plate (14), the vertical part of the T-shaped heat dissipation plate (14) is tightly attached to the refrigeration surface of the semiconductor refrigeration sheet (8), a plurality of groups of heat dissipation fans (15) are arranged between the horizontal part of the T-shaped heat dissipation plate (14) and the metal heat dissipation plate (11), the heat dissipation fans (15) exhaust air to a first air vent (16) at the air inlet end of the air exhaust cavity (7), the projection device circuit board (17) is fixed on the lower surface of the horizontal part of the T-shaped heat dissipation plate (14), a charging port (18) positioned at the rear part is arranged at the bottom of the inner shell (6), the heat radiation fan (15) and the semiconductor refrigeration sheet (8) are electrically connected with a fan interface of the projection device circuit board (17) after being connected in parallel, a key of the projection device is positioned on the rear side wall of the shell (2), and the projector lamp (13) is positioned on the front side wall.
2. The portable digital media projection device of claim 1, wherein: the top of the protective sleeve (1) is provided with a rotary handle (19).
3. The portable digital media projection device of claim 1, wherein: the top of the shell (2) of the projection device is provided with a pull-out handle (20).
4. The portable digital media projection device of claim 1, wherein: the bottom of the protective sleeve (1) is provided with a fixed inserting sleeve (21) which is used for being inserted into the bottom of the projection device shell (2).
5. The portable digital media projection device of claim 1, wherein: a bottom heat dissipation fan (22) is arranged between the lower surface of the horizontal part of the T-shaped heat dissipation plate (14) and the rechargeable battery (18), a plurality of vertical vent holes (23) are formed in the connecting part of the horizontal part and the vertical part of the T-shaped heat dissipation plate (14), and the bottom heat dissipation fan (22) blows air towards a second vent hole (24) below the first vent hole (16).
6. The portable digital media projection device of claim 1, wherein: the exhaust port (9) and the air inlet (10) are respectively covered with a layer of filter screen (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020406624.4U CN211267007U (en) | 2020-03-26 | 2020-03-26 | Portable digital media projection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020406624.4U CN211267007U (en) | 2020-03-26 | 2020-03-26 | Portable digital media projection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211267007U true CN211267007U (en) | 2020-08-14 |
Family
ID=71957112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020406624.4U Expired - Fee Related CN211267007U (en) | 2020-03-26 | 2020-03-26 | Portable digital media projection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211267007U (en) |
-
2020
- 2020-03-26 CN CN202020406624.4U patent/CN211267007U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20200814 |