CN105697838A - Ventilation structure and projecting device - Google Patents
Ventilation structure and projecting device Download PDFInfo
- Publication number
- CN105697838A CN105697838A CN201610200858.1A CN201610200858A CN105697838A CN 105697838 A CN105697838 A CN 105697838A CN 201610200858 A CN201610200858 A CN 201610200858A CN 105697838 A CN105697838 A CN 105697838A
- Authority
- CN
- China
- Prior art keywords
- gear
- ventilation device
- installation portion
- rotating shaft
- projection arrangement
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
- F16K24/04—Devices, e.g. valves, for venting or aerating enclosures for venting only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2021—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member with a plurality of valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/145—Housing details, e.g. position adjustments thereof
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
Abstract
The invention discloses a ventilation structure and a projecting device. A plurality of first gear sets are arranged at one ends of first rotating shafts of a plurality of blades of the ventilation structure. Each first gear set comprises a first gear and a second gear, the first gears are fixedly connected with the first rotating shafts, and the first gears and the second gears are engaged and are alternatively arranged; and the first gears and the second gears in the multiple first gear sets are linked so as to drive the first rotating shafts to rotate, and further drive the multiple blades to rotate, and therefore the ventilation structure is in the open state or close state.
Description
Technical field
The present invention relates to a kind of ventilation device, particularly relate to a kind of projection arrangement with this ventilation device。
Background technology
The light beam of projection arrangement output high brightness, with projected picture。The light beam that wherein part is not projected away can convert heat energy to inside projection arrangement, and heat energy can be accumulated inside projection arrangement, thus causing the electronic component dysfunction of projection arrangement。In order to make projection arrangement normal operation, it is necessary to offer hole on projection arrangement housing, to provide the heat energy path from shedding housing in housing。
Although, projection arrangement housing is offered hole and provides the passage of heat radiation, but also provide the path in dust, batting intrusion housing。And dust, batting are piled up in surrounding electronic component, improper ventilation can be caused, in turn result in heat energy and pile up, ultimately result in the electronic component dysfunction of projection arrangement, even cause the security concerns such as catching fire。
Therefore, it is necessary to design a kind of new ventilation device and projection arrangement, to overcome drawbacks described above。
Summary of the invention
It is an object of the invention to provide a kind of ventilation device and have the projection arrangement of this ventilation device, not only improving heat radiation again can be dust-proof。
For reaching above-mentioned purpose, the present invention provides a kind of ventilation device, including:
Body, including the first installation portion being oppositely arranged and the second installation portion；
Multiple blades, are arranged side by side between this first installation portion and this second installation portion, and each blade is respectively provided with the first rotating shaft, this first rotating shaft and this first installation portion and this second installation portion pivot joint, so that the plurality of blade is rotatable relative to this body；And
Multiple first gear trains, it is arranged at the side away from the plurality of blade of this first installation portion, each first gear train includes the first gear and the second gear, and this first gear engages each other and is alternately disposed at this first installation portion with this second gear, this first gear is fixing with this first rotating shaft to be connected, second rotating shaft of this second gear is connected with this first installation portion, and this second gear is rotatable around this second rotating shaft relative to the first installation portion；
Wherein, in the plurality of first gear train, this first gear interlocks with this second gear to drive this first rotating shaft to rotate, and then drives the rotation of the plurality of blade, so that this ventilation device is in opening or closed mode。
It is also preferred that the left when applying the first active force in this first gear or this second gear, the plurality of first gear train rotates。
It is also preferred that the left have installing hole on this first installation portion and this second installation portion, the opposite end of this first rotating shaft is respectively charged into two these installing holes so that this first rotating shaft is rotatable in this installing hole。
It is also preferred that the left the diameter of the plurality of first gear is identical。
It is connected it is also preferred that the left this second rotating shaft and this first installation portion are fixing, and this second gear can this second axis of rotation relatively；Or, this second rotating shaft and this first installation portion pivot joint, and this second rotating shaft fixes with this second gear and is connected。
Preferably, when this ventilation device is in opening, the spacing of adjacent two blades is equal to the diameter sum of the radius of two the first gears and the second gear between these two first gears, and the first rotating shaft that wherein these two first gears are corresponding with these two blades respectively connects。
It is also preferred that the left the plurality of first gear train is also provided at the side away from the plurality of blade of this second installation portion。
It is also preferred that the left this body is framework, this first installation portion is arranged in framework with this second installation portion or this first installation portion and relative two side that this second installation portion is this framework。
For reaching above-mentioned purpose, the present invention also provides for a kind of projection arrangement, including:
Shell, has at least one through hole；
Above-mentioned ventilation device, is arranged at this at least one through hole；
Wherein, when this ventilation device is in opening, communicate with the external world by this ventilation device, this at least one through hole inside this projection arrangement；When this ventilation device is closed, isolate with this at least one through hole and the external world by this ventilation device inside this projection arrangement。
It is also preferred that the left this ventilation device directly overlays on this at least one through hole；Or, this ventilation device is embedded in this at least one through hole；Or, this shell has depressed part, and this through hole is positioned at this depressed part, and this ventilation device is embedded at this depressed part。
It is also preferred that the left when this projection arrangement is in opening, this ventilation device is in opening；When this projection arrangement is closed, this ventilation device is closed。
Compared with prior art, the present invention provides a kind of ventilation device, by arranging multiple first gear train in one end of the first rotating shaft of multiple blades of ventilation device, each gear train includes the first gear and the second gear, this first gear is fixing with this first rotating shaft to be connected, and this first gear engages each other with this second gear and is arranged alternately, in the plurality of first gear train, this first gear interlocks with this second gear to drive this first rotating shaft to rotate, and then drive the rotation of the plurality of blade, so that this ventilation device is in opening or closed mode。
Accompanying drawing explanation
Fig. 1 is that the proposed ventilation device of the embodiment of the present invention is in the structural representation of opening。
Fig. 2 is that the proposed ventilation device of the embodiment of the present invention is in the structural representation of closed mode。
Detailed description of the invention
For making the purpose of the present invention, structure, feature and function thereof are had further understanding, hereby embodiment is coordinated to describe in detail as follows。
Referring to, shown in Fig. 1 and Fig. 2, disclosing the structural representation of ventilation device of the present invention。Fig. 1 be the proposed ventilation device of the embodiment of the present invention in the structural representation of opening, Fig. 2 is that the proposed ventilation device of the embodiment of the present invention is in the structural representation of closed mode。As depicted in figs. 1 and 2, ventilation device of the present invention includes body 11, multiple blade 12 and multiple first gear train 13。
Body 11 includes the first installation portion 111 and the second installation portion being oppositely arranged。
Multiple blades 12 are arranged side by side between the first installation portion 111 and this second installation portion, and each blade 12 is respectively provided with the first rotating shaft 121, the first rotating shaft 121 and the first installation portion 111 and this second installation portion pivot joint, so that multiple blade 12 opposing body 11 is rotatable；And
Multiple first gear trains 13 are arranged at the side away from multiple blades 12 of the first installation portion 111, for instance in Fig. 1, and the first gear train 13 and blade 12 lay respectively at the opposite sides of the first installation portion 111。Each first gear train 13 includes the first gear 131 and the second gear 132, wherein the first gear 131 and the second gear 132 engage each other and are alternately disposed at the first installation portion 111, first gear 131 is fixing with the first rotating shaft 121 to be connected, so, the first rotating shaft 121 can be driven to rotate when the first gear 131 rotates。Second rotating shaft 1320 of the second gear 132 is connected with the first installation portion 111, and the second gear 132 can rotate around the second rotating shaft 1320 relative to the first installation portion 111。
Continue referring to shown in Fig. 1 and Fig. 2, when applying the power on first direction to the first gear 131 or the second gear 132, in multiple first gear trains 13, the first gear 131 and the second gear 132 occur to interlock to drive the first rotating shaft 121 to rotate because engaging each other, and then drive the rotation of multiple blade 12, so that this ventilation device is in opening or closed mode。When this ventilation device is in opening, air-flow can pass through this ventilation device；When this ventilation device is closed, air-flow can not pass through this ventilation device；Further, multiple first gear 131 of the present invention and multiple second gear 132 are arranged alternately and engage each other, it is thereby achieved that rotate while multiple blade 12。
Further, the first installation portion 111 and this second installation portion having installing hole, the opposite end of the first rotating shaft 121 is respectively charged into two these installing holes so that the first rotating shaft 121 is rotatable in this installing hole。
In the present embodiment, the diameter of multiple first gears 131 is identical, so that the angular velocity of multiple first gears 131 is identical, namely the angle that multiple first gears 131 are rotatably identical, and then make the multiple blades 12 being connected with multiple first gears 131 rotate identical angle, it is achieved thereby that the synchronous axial system of multiple blade 12。
Further, the second rotating shaft 1320 is fixing with the first installation portion 111 to be connected, and relative second rotating shaft 1320 of the second gear 132 is rotatable。Certainly, in other embodiments, second rotating shaft 1320 can also be designed to and the first installation portion 111 pivot joint, second rotating shaft 1320 is fixing with the second gear 132 to be connected, so when providing driving force by motor, motor can fixing with the part protruding the second gear 132 of the second rotating shaft 1320 be connected, and drives the second rotating shaft 1320 to rotate realizing this motor, and then drives multiple first gear train 13 to rotate。It should be noted that, the set-up mode of above two the second rotating shaft 1320, following two mode can be adopted to be driven: the first is that user manually makes any one first gear 131 or the second gear 132 rotate, it is achieved multiple first gear trains 13 rotate；The second is, with motor for driving force, and this motor has travelling gear, this travelling gear engages with any one first gear 131 and/or the second gear 132, when this motor drives this travelling gear to rotate, the rotation of this travelling gear can drive the first gear 131 engaged and/or the second gear 132 to rotate, it is achieved the rotation of multiple first gear trains 13。The type of drive of multiple first gear trains 13 is not limited with above-mentioned, is specifically determined according to practical situation by designer, does not repeat them here。
Further, when this ventilation device is in opening, the diameter sum of the spacing of adjacent two blades 12 radius equal to two the first gears 131 and the second gear 132 between these two the first gears 131, the first rotating shaft 121 that wherein these two the first gears 131 are corresponding with these two blades 12 respectively connects。
In practical application, multiple first gears 131 are all identical with the diameter of multiple second gears 132, the width of corresponding multiple blades 12 is identical, then, when this ventilation device is in opening, the spacing of adjacent two blades 12 is equal to the twice of the first gear 131 or the diameter of the second gear 132；When this ventilation device is closed, the thickness of ventilation device is equal to the diameter of the first gear 131 or the second gear 132, namely the thickness of this ventilation device is determined by the diameter of the first gear 131 or the second gear 132, and the diameter of the first gear 131 or the second gear 132 is determined by the size of the spacing between adjacent blades 12 namely blade 12, that is, the thickness of this ventilation device is determined by the size of blade 12, therefore, the width of blade 12 is more little, then the diameter of the first gear 131 and the second gear 132 is more little, the thickness of ventilation device is also more little, thus being beneficial to the demand of slimming。
Further, when multiple first gears 131 are all identical with the diameter of multiple second gears 132, when the width of blade 12 is identical, the thickness of ventilation device of the present invention is less than the thickness of traditional connection rod set ventilation device。Traditional connection rod set ventilation device includes blade and installation portion group, blade has the first blade rotor and the second blade rotor, installation portion group includes fixing connecting rod and movable link, this fixing connecting rod makes on this first blade rotor ad-hoc location on this fixing connecting rod around axis rotation, this movable link makes to rotate around axle center on this second blade rotor ad-hoc location in movable link, the thickness of this traditional connection rod set ventilation device is equal to the diameter of this first blade rotor, the diameter of this second blade rotor, the rotating shaft spacing of this first blade rotor and this second blade rotor and local thickness's sum of this movable link, wherein, compare for the spacing between adjacent blades 12 for 18.0 millimeters, this common diameter of the first blade rotor is 1.5 millimeters, this common diameter of the second blade rotor is 1.5 millimeters, this rotating shaft spacing is generally 6.75 millimeters, the local thickness of this movable link is 2.0 millimeters, therefore, the thickness of this traditional connection rod set ventilation device is 11.75；And the half that thickness is this spacing of ventilation device of the present invention, it is 9.0 millimeters, it is clear that less than the thickness of traditional connection rod set ventilation device。And it should be noted that, the force square of this rotating shaft effect of distance motor and the structural thickness of fixing connecting rod, therefore, this rotating shaft spacing is not free parameter, can not arbitrarily changing, thus limiting the thickness of conventional linkage group ventilation device, being different from the present invention, ventilation device thickness reduces along with the reduction of the size of blade 12, and namely the thickness of ventilation device can freely downgrade。
Further, multiple first gear trains 13 are also provided at the side away from multiple blades 12 of this second installation portion, so that ventilation device symmetrical configuration, improve the stability of this ventilation device, better realize while multiple blade 12 and synchronous axial system, specifically determined according to practical situation by designer, do not repeat them here。
In the present embodiment, body 11 is framework, first installation portion 111 is arranged in framework with this second installation portion or for relative two side of framework, and this framework also includes upper cover, to cover multiple first gear train 13, to prevent air-flow from flowing through from the gap between multiple first gear trains 13, and the aesthetic property of ventilation device can also be improved。It should be strongly noted that in the present embodiment, this upper cover does not cover multiple blade 12, make air-flow can pass through to be in the ventilation device of opening, to realize ventilation, but be not limited, specifically determined according to practical situation by designer, do not repeat them here。
Further, first rotating shaft 121 includes discontinuous first sub-rotating shaft 1211 and the second sub-rotating shaft, first sub-rotating shaft 1211 and this second sub-rotating shaft are on the same line, and the first sub-rotating shaft 1211 and this second sub-rotating shaft is fixing with the two ends of blade 12 respectively is connected, and the first sub-rotating shaft 1211 and the second sub-rotating shaft respectively with the first installation portion 111 and this second installation portion pivot joint。Certain present invention is not above to be limited, and in another embodiment, the first rotating shaft 121 also can be the overall structure be arrangeding in parallel with blade 12 or being wholely set, and it extends to the other end of blade 12 from one end of blade 12。
To sum up, the present invention provides a kind of ventilation device, by arranging multiple first gear train in one end of the first rotating shaft of multiple blades of ventilation device, each gear train includes the first gear and the second gear, this first gear is fixing with this first rotating shaft to be connected, and this first gear engages each other with this second gear and is arranged alternately, in the plurality of first gear train, this first gear interlocks with this second gear to drive this first rotating shaft to rotate, and then drive the rotation of the plurality of blade, so that this ventilation device is in opening or closed mode。
In practical application, ventilation device shown in Fig. 1 to Fig. 2 of the present invention can be applicable in projection arrangement, this projection arrangement includes ventilation device and the shell of above-described embodiment, this shell has at least one through hole, this ventilation device is arranged at this at least one through hole, when this ventilation device is in opening, communicate with the external world by this ventilation device, this at least one through hole inside this projection arrangement, external air flow can enter in this projection arrangement via this at least one ventilation device, so that this projection arrangement to be dispelled the heat；When this ventilation device is closed, isolate with this at least one through hole and the external world by this ventilation device inside this projection arrangement, can prevent dust from entering inside this projection arrangement, it is achieved to extend the service life of this projection arrangement。
Further, this ventilation device directly overlays on this at least one through hole；Or, this ventilation device is embedded in this at least one through hole；Or, this shell has depressed part, and this through hole is positioned at this depressed part, and this ventilation device is embedded at this depressed part, is specifically determined according to practical situation by designer, does not repeat them here。
Further, when this projection arrangement is in opening, this ventilation device is in opening, namely when this projection arrangement works, this projection arrangement can produce heat, external air flow enters inside this projection arrangement by this ventilation device being in opening, and this projection arrangement is dispelled the heat, it is ensured that the good operation of this projection arrangement；When this projection arrangement is closed, this ventilation device is closed, namely when this projection arrangement is closed, this projection arrangement will not produce heat, it is therefore not necessary to this projection arrangement is dispelled the heat, but if this ventilation is in the words of opening, extraneous dust can enter inside this projection arrangement by this ventilation device, therefore, when this projection arrangement is closed, it is possible to prevent dust from entering by closing this ventilation device, realize both having can guarantee that heat radiation, again can be dust-proof。Further, generally when this projection arrangement just stops projecting, also have surplus heat inside this projection arrangement, and inside some projection arrangement, the heat abstractor of projection arrangement such as fan is also in running, if now closing this ventilation device, will be unfavorable for heat radiation, therefore, it can be arranged to: this ventilation device turns off after heat abstractor quits work or closes after this ventilation device the first Preset Time after this projection arrangement stops projection。Wherein, this first Preset Time is determined according to practical situation by designer, does not repeat them here。
To sum up, the present invention provides a kind of projection arrangement, this projection arrangement includes ventilation device and housing, this housing has at least one through hole, this ventilation device is arranged on this through hole, this ventilation device is by arranging multiple first gear train in one end of the first rotating shaft of its multiple blades, and each gear train includes the first gear and the second gear, this first gear is fixing with this first rotating shaft to be connected, and this first gear engages each other with this second gear and is arranged alternately, in the plurality of first gear train, this first gear interlocks with this second gear to drive this first rotating shaft to rotate, and then drive the rotation of the plurality of blade, so that this ventilation device is in opening or closed mode, when this ventilation device is in opening, by this ventilation device inside this projection arrangement, this at least one through hole communicates with the external world, external air flow enters inside this projection arrangement by this ventilation device and this at least one through hole, so that this projection arrangement is dispelled the heat；When this ventilation device is closed, isolate with this at least one through hole and the external world by this ventilation device inside this projection arrangement, extraneous dust cannot enter inside this projection arrangement by this ventilation device and this at least one through hole, it is achieved dust-proof again while heat radiation。
The present invention is been described by by above-mentioned related embodiment, but above-described embodiment is only the example implementing the present invention。It must be noted that, the embodiment disclosed is not limiting as the scope of the present invention。On the contrary, the change made without departing from the spirit and scope of the present invention and retouching, all belong to the scope of patent protection of the present invention。
Claims (11)
1. a ventilation device, it is characterised in that including:
Body, including the first installation portion being oppositely arranged and the second installation portion；
Multiple blades, are arranged side by side between this first installation portion and this second installation portion, and each blade is respectively provided with the first rotating shaft, this first rotating shaft and this first installation portion and this second installation portion pivot joint, so that the plurality of blade is rotatable relative to this body；And
Multiple first gear trains, it is arranged at the side away from the plurality of blade of this first installation portion, each first gear train includes the first gear and the second gear, and this first gear engages each other and is alternately disposed at this first installation portion with this second gear, this first gear is fixing with this first rotating shaft to be connected, second rotating shaft of this second gear is connected with this first installation portion, and this second gear is rotatable around this second rotating shaft relative to the first installation portion；
Wherein, in the plurality of first gear train, this first gear interlocks with this second gear to drive this first rotating shaft to rotate, and then drives the rotation of the plurality of blade, so that this ventilation device is in opening or closed mode。
2. ventilation device as claimed in claim 1, it is characterised in that when applying the first active force in this first gear or this second gear, the plurality of first gear train rotates。
3. ventilation device as claimed in claim 1, it is characterised in that have installing hole on this first installation portion and this second installation portion, the opposite end of this first rotating shaft is respectively charged into two these installing holes so that this first rotating shaft is rotatable in this installing hole。
4. ventilation device as claimed in claim 1, it is characterised in that the diameter of the plurality of first gear is identical。
5. ventilation device as claimed in claim 1, it is characterised in that this second rotating shaft is fixed with this first installation portion and is connected, and this second gear can this second axis of rotation relatively；Or, this second rotating shaft and this first installation portion pivot joint, and this second rotating shaft fixes with this second gear and is connected。
6. ventilation device as claimed in claim 1, it is characterized in that, when this ventilation device is in opening, the spacing of adjacent two blades is equal to the diameter sum of the radius of two the first gears and the second gear between these two first gears, and the first rotating shaft that wherein these two first gears are corresponding with these two blades respectively connects。
7. ventilation device as claimed in claim 1, it is characterised in that the plurality of first gear train is also provided at the side away from the plurality of blade of this second installation portion。
8. ventilation device as claimed in claim 1, it is characterised in that this body is framework, this first installation portion is arranged in framework with this second installation portion or this first installation portion and relative two side that this second installation portion is this framework。
9. a projection arrangement, it is characterised in that including:
Shell, has at least one through hole；
Ventilation device described in any one of the claims 1-8, is arranged at this at least one through hole；
Wherein, when this ventilation device is in opening, communicate with the external world by this ventilation device, this at least one through hole inside this projection arrangement；When this ventilation device is closed, isolate with this at least one through hole and the external world by this ventilation device inside this projection arrangement。
10. projection arrangement as claimed in claim 9, it is characterised in that this ventilation device directly overlays on this at least one through hole；Or, this ventilation device is embedded in this at least one through hole；Or, this shell has depressed part, and this through hole is positioned at this depressed part, and this ventilation device is embedded at this depressed part。
11. projection arrangement as claimed in claim 9, it is characterised in that when this projection arrangement is in opening, this ventilation device is in opening；When this projection arrangement is closed, this ventilation device is closed。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610200858.1A CN105697838A (en) | 2016-04-01 | 2016-04-01 | Ventilation structure and projecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610200858.1A CN105697838A (en) | 2016-04-01 | 2016-04-01 | Ventilation structure and projecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105697838A true CN105697838A (en) | 2016-06-22 |
Family
ID=56218166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610200858.1A Pending CN105697838A (en) | 2016-04-01 | 2016-04-01 | Ventilation structure and projecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105697838A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003315910A (en) * | 2002-04-24 | 2003-11-06 | Mitsubishi Electric Corp | Projection device |
| US7063140B1 (en) * | 2004-10-04 | 2006-06-20 | Ryan Woo | Multiple climate air system |
| CN201016262Y (en) * | 2007-01-07 | 2008-02-06 | 吕海波 | Multifunctional full-automatic glass jalousie |
| JP2008025095A (en) * | 2006-07-18 | 2008-02-07 | Seiko Industry Co Ltd | Louver device |
| CN103374990A (en) * | 2012-04-16 | 2013-10-30 | 万维通风设备江苏有限公司 | Anti-theft waterproof ventilated clearstory |
-
2016
- 2016-04-01 CN CN201610200858.1A patent/CN105697838A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003315910A (en) * | 2002-04-24 | 2003-11-06 | Mitsubishi Electric Corp | Projection device |
| US7063140B1 (en) * | 2004-10-04 | 2006-06-20 | Ryan Woo | Multiple climate air system |
| JP2008025095A (en) * | 2006-07-18 | 2008-02-07 | Seiko Industry Co Ltd | Louver device |
| CN201016262Y (en) * | 2007-01-07 | 2008-02-06 | 吕海波 | Multifunctional full-automatic glass jalousie |
| CN103374990A (en) * | 2012-04-16 | 2013-10-30 | 万维通风设备江苏有限公司 | Anti-theft waterproof ventilated clearstory |
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