CN208190833U - A kind of projection device - Google Patents

Abstract

The utility model relates to projection display technique fields, a kind of projection device is specifically provided, dmd chip is opposite with the projection air inlet of shell in ray machine, first radiating piece is attached to optical machine main body and closes on dmd chip, induced draft structure is set under optical machine main body, under the action of induced draft structure, is flowed by air inlet suction airflow and from top to bottom, the heat on the first radiating piece is preferentially taken away, dmd chip fast cooling is made.The one end of first heat-conductive assembly is affixed on optical machine main body and the heat that optical machine main body generates is led to its other end, the air inlet of induced draft structure is opposite with optical machine main body, by the air-flow imported from air inlet, the heat of optical machine main body generation can directly, be rapidly taken away.End in first heat-conductive assembly far from optical machine main body is placed between air outlet and the first exhaust outlet, and air outlet is opposite with the first exhaust outlet, is realized and is carried out rapid cooling to heat derived from the first heat-conductive assembly.

Description

A kind of projection device

Technical field

The utility model belongs to projection display technique field, is to be related to a kind of projection device more specifically.

Background technique

Projection device incorporates traditional TV broadcasting function, can be used to play video, text, image etc..Compared to Conventional television, projection device is not only easy to carry, but also the size projected is bigger, and price is also relatively cheap.In projection device The heat of generation is mainly derived from ray machine, wherein ray machine includes the color that broadcast information is carried for handling light source and reflecting The optical machine main body of light and dmd chip for receiving the coloured light and by the color emissions to the projection lens, for The cooling measure that optical machine main body is usually taken is sticked cooling fin, increases the heat dissipation area of optical machine main body, right to improve its heat dissipation capacity There is no specially treateds for the heat dissipation of dmd chip, are unable to satisfy cooling requirements, and the service life of projection device is caused to substantially reduce.

Utility model content

The purpose of this utility model is to provide a kind of projection devices, are set with solving to exist in the prior art existing projection The technical issues of being unable to satisfy the cooling requirements of ray machine in standby, reducing the service life of projection device.

In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of projection device, comprising:

There is projection lens projection to inject end and the projection ejecting end opposite with the projection injection end；

Ray machine, for generating projection ray and having light ejecting end, the ray machine includes for handling light source and reflecting The optical machine main body of the coloured light of broadcast information is carried out and set on the optical machine main body and for receiving the coloured light and by institute The dmd chip that color emissions inject end to the projection of the projection lens is stated, end and the light ejecting end are injected in the projection Docking；

Cooling system comprising the first radiating piece and one end are affixed on the optical machine main body and are used for the optical machine main body The heat of generation is guided to first heat-conductive assembly of its other end, and first radiating piece is affixed on the optical machine main body and closes on The dmd chip；

Induced draft structure, for introducing and being discharged wind, the induced draft structure is located relatively at the lower section of optical machine main body and has Air inlet and the first exhaust outlet, the air inlet are opposite with the optical machine main body；

Project shell, it is described projection shell have accommodating chamber and be connected to the accommodating chamber projection hole, air inlet and Air outlet, the ray machine, the cooling system, the projection lens and the induced draft structure are placed in the accommodating chamber, The projection ejecting end of the projection lens inserts in the projection hole, and the air inlet is located relatively at the upside of the optical machine main body And it is opposite with the dmd chip, the air outlet is opposite with first exhaust outlet, far from described in first heat-conductive assembly The end of optical machine main body is placed between the air outlet and first exhaust outlet.

Further, the projection device further includes main control board, the main control board include master control plate body and The main control chip being laid on the master control plate body, the induced draft structure are electrically connected with the main control chip with the ray machine, And it is controlled by the main control chip；

The induced draft structure also has second exhaust outlet opposite with the air inlet, and the main control chip is located relatively at institute The lower section of induced draft structure is stated, and opposite with second exhaust outlet.

Further, the projection device further includes the focus adjusting mechanism for adjusting the projection lens focal length；

The projection lens includes the lens sleeve of lens bodies and the socket lens bodies, the lens sleeve in Its barrel offers the spiral slide extended spirally around the axis of the lens sleeve；

The focus adjusting mechanism include one end pass through the spiral slide and connect with the lens bodies focusing structure, and The focusing structure connects and is used to that the focusing structure to be driven to operate and drives the driving dress of the lens bodies displacement focusing It sets and the signal of the focussing signals for receiving remote controler sending receives head, the signal receives head and the driving device is believed Number connection, the driving device is electrically connected with the main control chip, and is controlled by the main control chip.

Further, the focusing structure includes driving gear and the driven rack gear that is meshed with the driving gear；

The driving device is fixed on the lens sleeve and has power output shaft, and the driving gear is placed on described dynamic Power output shaft, the driven rack gear are affixed on the outer tube wall of the lens sleeve and connect with the lens bodies, the driven tooth Item is rotated around the axis of the lens bodies under driving gear drive and along the spiral path of the spiral slide It slides so that the lens bodies are along its axis shift.

Further, the cooling system further includes multiple second radiating pieces for being affixed on the optical machine main body side.

Further, the cooling system further includes the second heat-conductive assembly, and the projection shell is in the chamber of the accommodating chamber Wall offers thermovent, and the one end of second heat-conductive assembly is connect with the ray machine and the heat for generating the ray machine passes It is directed at its other end, the end far from the ray machine is opposite with the thermovent in second heat-conductive assembly.

Further, the projection device further includes that at least one is electrically connected and by the master control core with the main control chip The loudspeaker of piece control, each loudspeaker are laid in the accommodating chamber, and the projection shell is offered in the accommodating chamber cavity wall The sound end that goes out of at least one sound outlet hole, each loudspeaker inserts in a sound outlet hole respectively.

Further, the projection device further includes the loudspeaker box structure for being fixed on the accommodating chamber, the loudspeaker box structure packet It includes with the first cavity and for disposing the first cabinet of each loudspeaker, connecting and have and institute with first cabinet The second cabinet and the bleed passage in second cavity for stating the second cavity of the first cavity connection；

First cabinet offers at least one speaker hole in the first cavity cavity wall, each speaker hole respectively with One sound outlet hole is opposite, and the sound end that goes out of each loudspeaker inserts in a speaker hole respectively；

Second cabinet offers bleeder port in the bottom of chamber of second cavity, and the projection shell is in the accommodating chamber Bottom of chamber offer lower through-hole, the lower through-hole is connected to the bleeder port, the Single port of the bleed passage and each loudspeaker Opposite and another port is opposite with the bleeder port to export the air-flow generated by each loudspeaker because sound film vibrates.

Further, the projection shell includes upper cover, center and lower cover, and the upper cover is removably fastened on described The upper port of center, the lower cover are removably fastened on the lower port of the center.

Further, the projection shell further includes lens cap device, and the lens cap device includes being fixed on the appearance Receive the slip lid for being located at the sliding rail frame at the projection hole in the cavity wall of chamber and being slidably connected with the sliding rail frame, the sliding rail frame The camera aperture being connected to the projection hole is offered, the projection lens slides to described in the camera aperture and covering in the slip lid There is opening state with occlusion state when camera aperture and when the slip lid slips away the camera aperture.

A kind of beneficial effect of projection device provided by the utility model is: dmd chip and projection shell in ray machine Air inlet is opposite, and the first radiating piece patch optical machine main body simultaneously closes on dmd chip, and induced draft structure is set to the lower section of optical machine main body, in this way, It under the action of induced draft structure, is flowed by air inlet suction airflow, and from top to bottom, preferentially takes away the heat on the first radiating piece Amount, so that dmd chip fast cooling, it is ensured that the stability of its work.And optical machine main body, the one end of the first heat-conductive assembly are affixed on Optical machine main body simultaneously guides the heat that optical machine main body generates to its other end, wherein the air inlet of induced draft structure and ray machine master Body is opposite, by the air-flow imported from air inlet, can directly, rapidly take away the heat of optical machine main body generation.First is thermally conductive End in component far from optical machine main body is placed between air outlet and the first exhaust outlet, wherein air outlet and the first exhaust outlet phase It is right, rapid cooling is carried out to heat derived from the first heat-conductive assembly in this way, realizing.Therefore, it by above structure, can effectively mention The heat dissipation capacity of high optical machine main body and dmd chip, it is ensured that the two runs well, and extends the service life of the two, that is, extends projection The service life of equipment.

Detailed description of the invention

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is the stereogram exploded view of projection device provided by the embodiment of the utility model；

Fig. 2 is the sectional perspective exploded view of projection device provided by the embodiment of the utility model；

Fig. 3 is another sectional perspective exploded view of projection device provided by the embodiment of the utility model；

Fig. 4 is the stereogram exploded view of supporting structure and focusing structure provided by the embodiment of the utility model；

Fig. 5 is the perspective view of driven rack gear provided by the embodiment of the utility model；

Fig. 6 is the stereogram exploded view of projection shell provided by the embodiment of the utility model；

Fig. 7 is the stereogram exploded view of the first heat-conductive assembly provided by the embodiment of the utility model；

Fig. 8 is the stereogram exploded view of the second heat-conductive assembly provided by the embodiment of the utility model；

Fig. 9 is the perspective view of support frame provided by the embodiment of the utility model；

Figure 10 is the stereogram exploded view of lens cap device provided by the embodiment of the utility model；

Figure 11 is the stereogram exploded view provided by the embodiment of the utility model for far saying structure；

Figure 12 is the sectional perspective exploded view at another visual angle of projection device provided by the embodiment of the utility model.Wherein, Each appended drawing reference in figure:

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

It should be noted that it can directly exist when element is referred to as on " being fixed on " or " being set to " another element On another element or it may be indirectly secured to or be set on another element by third member.When an element quilt It referred to as " is connected to " another element, it can be directly to another element or it may be indirect by third member It is connected on another element.

It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

Please refer to Fig. 1 to Fig. 3, the utility model embodiment provides a kind of projection device, comprising:

There is projection lens 200 projection to inject end 201 and the projection ejecting end opposite with projection injection end 201 202。

Ray machine 100, for generating projection ray and having light ejecting end 101, ray machine 100 includes for handling light source simultaneously Reflect the optical machine main body 110 for carrying the coloured light of broadcast information and set on optical machine main body 110 and for receiving coloured light and inciting somebody to action Color emissions inject the dmd chip 120 at end 201 to the projection of projection lens 200, and end 201 and light ejecting end 101 are injected in projection Docking.

Cooling system 1 comprising the first radiating piece 30 and one end are affixed on optical machine main body 110 and are used for optical machine main body 110 heats generated are guided to first heat-conductive assembly 20 of its other end, and the first radiating piece 30 is affixed on optical machine main body 110 and faces Nearly dmd chip 120.

Induced draft structure 10, for introducing and being discharged wind, induced draft structure 10 is located relatively at the lower section of optical machine main body 110 and tool There are air inlet 1011 and the first exhaust outlet 1012, air inlet 1011 and optical machine main body 110 are opposite.

Project shell 800, projection shell 800 have accommodating chamber 801 and be connected to accommodating chamber 801 projection hole 802, into Air port 804 and air outlet 805, ray machine 100, cooling system 1, projection lens 200 and induced draft structure 10 are placed in accommodating chamber 801 Interior, the projection ejecting end 202 of projection lens 200 inserts in projection hole 802, and air inlet 804 is located relatively at the upper of optical machine main body 110 Side is simultaneously opposite with dmd chip 120, and air outlet 805 and the first exhaust outlet 1012 are opposite, far from ray machine master in the first heat-conductive assembly 20 The end of body 110 is placed between air outlet 805 and the first exhaust outlet 1012.

In the present embodiment, the air inlet 804 of dmd chip 120 and projection shell 800 is opposite in ray machine, the first radiating piece 30 patch optical machine main bodies 110 simultaneously close on dmd chip 120, and induced draft structure 10 is set to the lower section of optical machine main body 110, in this way, in air inducing knot It under the action of structure 10, by 804 suction airflow of air inlet, and from top to bottom flows, preferentially takes away the heat on the first radiating piece 30, So that 120 fast cooling of dmd chip, it is ensured that the stability of its work.And optical machine main body 110, one end of the first heat-conductive assembly 20 Portion is affixed on optical machine main body 110 and guides the heat that optical machine main body 110 generates to its other end, wherein induced draft structure 10 Air inlet 1011 and optical machine main body 110 are opposite, by the air-flow imported from air inlet 804, can directly, rapidly take away ray machine The heat that main body 110 generates.End in first heat-conductive assembly 20 far from optical machine main body 110 is placed in air outlet 805 and first row Between air port 1012, wherein air outlet 805 and the first exhaust outlet 1012 are opposite, export in this way, realizing to the first heat-conductive assembly 20 Heat carry out rapid cooling.Therefore, by above structure, optical machine main body 110 and dmd chip 120 be can effectively improve Heat dissipation capacity, it is ensured that the two runs well, and extends the service life of the two, that is, extends the service life of projection device.

In the present embodiment, induced draft structure 10 is fan.

Projection device further includes main control board 300, and main control board 300 is including master control plate body 310 and is laid in master The main control chip 320 on plate body 310 is controlled, induced draft structure 10 is electrically connected with main control chip 320 with ray machine 100, and by master control core Piece 320 controls.

Induced draft structure 10 also has second exhaust outlet 1013 opposite with air inlet 1011, and main control chip 320 is located relatively at The lower section of induced draft structure 10, and it is opposite with the second exhaust outlet 1013.In this way, effectively improving the radiating efficiency of main control board 300.

In the present embodiment, distinguished and admirable to be sucked into accommodating chamber 801 by air inlet 804 by induced draft structure 10, and flow through light After machine 100 and each first radiating piece 30, it is drawn to air inlet 1011, via induced draft structure 10 by distinguished and admirable from the first exhaust outlet 1012 It is discharged with the second exhaust outlet 1013, wherein the second exhaust outlet 1013 is opposite with main control board 300, realizes to main control board 300 blowing heat dissipations, and discharge is sucked back by air inlet 1011 again, realize circulation cooling.And the first exhaust outlet 1012 and air outlet 805 End in opposite and the first heat-conductive assembly 20 far from ray machine 100 is positioned there between, the purpose of the first heat-conductive assembly 20 setting It is that the heat that ray machine 100 sheds is guided to air outlet 805, dries by the first exhaust outlet 1012 it, make heat thereon Amount is rapidly shed by air outlet 805.In this way, improving main control board 300 and ray machine 100 is heat dissipation effect, it is ensured that projection Equipment runs well.

Specifically, projection device further includes drive circuit board 600, and drive circuit board 600 includes driving plate body 610 and cloth Accessory module on driving plate body 610, the accessory module includes power module, audio-frequency module, video module etc., It is connect with main control chip 320.

Please refer to Fig. 2 and Figure 12, in the present embodiment, main control board 300 further includes connector group 330, connection Device group 330 includes USB connector 331, HDMI connector 332, network interface connector 333, power connector 334 and earphone connection Device 335, each connector are laid in the edge of master control borad body 310 and connect with accessory module.In this way, can make projection device with External power supply, network, electronic equipment establish connection.

Please refer to Fig. 2 to Fig. 5, further, projection device further includes the tune for adjusting 200 focal length of projection lens Focusing mechanism 700.

Projection lens 200 includes lens bodies 210 and the lens sleeve 220 for being socketed lens bodies 210, lens sleeve 220 offer the spiral slide 221 extended spirally around the axis of lens sleeve 220 in its barrel.

Focus adjusting mechanism 700 include one end pass through spiral slide 221 and connect with lens bodies 210 focusing structure 710, and Focusing structure 710 connects and the driving device for driving focusing structure 710 to operate and the displacement of lens bodies 210 being driven to focus 720 and the signals of the focussing signals for receiving remote controler sending receive head 730, signal receives head 730 and driving device 720 Signal connection, driving device 720 and the control of main control chip 320 connect.It is to be appreciated that when remote controler receives head 730 to signal When issuing focussing signals, signal receives head 730 and focussing signals is sent driving device 720, and driving device 720 handles focussing signals And focussing signals are converted into focusing data-signal and are sent to main control chip 320, main control chip 320 receives and processes focusing data After signal, then to driving device 720 treated accurate control signal is sent, driving device 720 receives control signal and simultaneously drives Focusing structure 710 operates, and drives the displacement focusing of projection lens 200.In this way, only needing remote controller, it is not necessarily to manual adjustment knob It can realize the focus adjustment of projection lens 200.

Please refer to Fig. 2 to Fig. 5, further, focusing structure 710 includes driving gear 711 and and driving gear The 711 driven rack gears 712 being meshed.

Driving device 720 is fixed on lens sleeve 220 and has power output shaft 721, and it is defeated that driving gear 711 is placed on power Shaft 721, driven rack gear 712 are affixed on the outer tube wall of lens sleeve 220 and connect with lens bodies 210, and driven rack gear 712 is in master Moving gear 711 drives the lower axis around lens bodies 210 and along the spiral path rotational slide of spiral slide 221 so that mirror Head main body 210 is along its axis shift.In this way, being opened when driving device 720 receives the control signal that main control chip 320 is sent It moves and power output shaft 721 is driven to rotate, since power output shaft 721 is connect with driving gear 711, and then driving gear 711 As power output shaft 721 rotates synchronously, driving gear 711 is meshed with driven rack gear 712, and driving device 720 is fixed In the barrel of lens sleeve 220, and then the relative position of driving gear 711 is constant, and driven rack gear 712 is by driving gear 711 The torque of application, the axis around lens bodies 210 and the spiral path rotational slide along spiral slide 221 are so that camera lens master Body 210 realizes that lens bodies 210 are focused along its axis shift.Structure is simple, and spiral slide 221 is around camera lens The axis spiral of main body 210 is arranged, that is, achievees the purpose that linearly to focus, improve the accuracy of focusing.Compared to manual focusing, nothing Method accurately controls 210 moving distance of lens bodies, and controlling driving device 720 by main control chip 320 can realize.

In the present embodiment, driving device 720 includes driving motor and controller, wherein controller and driving motor control System connection, driver receive 730 signal of head with signal and connect, and driver is connect with main control chip 320.And above-mentioned control signal shape What it is at process is completed by controller.

In the present embodiment, the axis of the axis of power output shaft 721 and driving gear 711 with lens bodies 210 Axis it is identical.

In the present embodiment, surface facing with lens sleeve 220 in driven rack gear 712 and lens sleeve 220 is outer Shape matches, in this way, effectively improving stationarity when driven rack gear 712 is moved along spiral slide 221.

Please refer to Fig. 2 to Fig. 5, in the present embodiment, focus adjusting mechanism 700 further includes for fixing driving device 720 Supporting structure 740, supporting structure 740 includes fixed bracket 741 and supporting support 742.

Supporting support 742 include be fixed on lens sleeve 220 outer tube wall support grillage 7421 and with support grillage 7421 connections and two support legs 7422 extended towards the direction far from lens sleeve 220, in driving device 720 with power output shaft 721 opposite facing ends are inserted between two support legs 7422, two support legs, 7422 grasping drive unit 720.

Fixed bracket 741 includes the fixing frame plate 7411 and and fixing frame plate for being fixed on the outer tube wall of lens sleeve 220 7411 connections and two fixed feets 7412 extended far from 220 direction of lens sleeve, the power output end of driving device 720 is fixed In two fixed feets 7412, power output shaft 721 between two fixed feets 7412 by stretching out.

Fixed bracket 741 further includes that one end is connect and the other end prolongs far from 220 direction of lens sleeve with fixing frame plate 7411 The stabilization grillage 7413 stretched stablizes grillage 7413 in its elongated end and offers stable mouth 7401, and power output shaft 721 inserts in stabilization Mouth 7401 reduces its amplitude to ensure 721 smooth rotation of power output shaft, dims power output shaft 721,711 and of driving gear The service life of driven rack gear 712.

Please refer to Fig. 2 to Fig. 5, focus adjusting mechanism 700 further includes for driven rack gear 712 to be limited in lens sleeve The spiral position limiting structure 750 of 220 outer tube wall.

Spiral position limiting structure 750 includes limit grillage 751 and each extends over out in the opposite sides face of driven rack gear 712 First limit plate 752 and the second limit plate 753, limit grillage 751 are fixed on the outer tube wall of lens sleeve 220, driven rack gear 712 Between limit grillage 751 and fixed bracket 741.Definition is oriented " preceding " with the projection ejecting end 202 of projection lens 200, Then it is reversed " rear ".Supporting structure 740 is relative to the forward setting of driven rack gear 712.Limit grillage 751 is opened up in its leading flank There is the advancing slip access slot 7501 of the extending direction extension along spiral slide 221, fixing frame plate 7411 offers edge in side thereafter The rear sliding slot 7502 that extends of extending direction of spiral slide 221, the axis of advancing slip access slot 7501 and afterwards sliding slot 7502 Axis it is identical as the axis of lens bodies 210.First limit plate 752 slips slot 7502 after inserting in, the second limit plate 753 is inserted In advancing slip access slot 7501, advancing slip access slot 7501 and rear sliding slot 7502 are collectively formed the axis spiral around lens bodies 210 and prolong The spiral limit slideway stretched, in this way, convenient for driven rack gear 712 to be limited to the outer tube wall in lens sleeve 220.

In the present embodiment, driven rack gear 712 is fixedly connected with lens bodies 210.Certainly, it is also detachably connected.

Please refer to Fig. 2 to Fig. 5, in order to ensure driven rack gear 712 more smooth rotation and along lens bodies 210 Axis direction preferably limits, and spiral position limiting structure 750 further includes the limit plate that one end is connect with the edges of boards of the first limit plate 752 754 and the hook bolt 755 that is connect with the other end of limit plate 754, wherein hook bolt 755 faces away from the direction of lens sleeve 220 Extend.In fixing frame plate 7411 surface facing with lens sleeve 220 offer with slip afterwards slot 7502 be connected to it is sliding slotting Slot 7503, limit plate 754 insert in sliding slot 7503, and the hook of hook bolt 755 terminates in fixing frame plate 7411.Limit plate 754 can be sliding It is slid in slot 7503 along the extending direction spiral of spiral slide 221.

Preferably, spiral position limiting structure 750 further includes the guidance raised line 756 connecting with the slot bottom of sliding slot 7503, is drawn Pilot item 756 around lens bodies 210 axis and extend along the extending direction of spiral slide 221, in limit plate 754 with The facing surface of guidance raised line 756 offers spiral guide slot 7504, and guidance raised line 756 terminates in fixed plate in the hook of hook bolt 755 Spiral guide slot 7504 and sliding cooperation are inserted in when frame 7411.Driven rack gear 712 turns along the extending direction of guidance raised line 756 It is dynamic, driven rack gear 712 is more improved around the stability and accuracy of the axis helical rotation of lens bodies 210.

In the present embodiment, projection shell 800 offers in the cavity wall of accommodating chamber 801 and receives what head 730 plugged for signal Signal receiver hole 803.Projection hole 802 and signal receiver hole 803 are all located at the leading flank of projection shell 800.

Please refer to Fig. 1, Fig. 2 and Fig. 6, further, projection shell 800 include upper cover 810, center 820 and under Lid 830, upper cover 810 are removably fastened on the upper port of center 820, and lower cover 830 is removably fastened on the lower end of center 820 Mouthful, upper cover 810, center 820 and lower cover 830 are enclosed accommodating chamber 801 jointly.In this way, upper cover 810 and lower cover 830 are equal It is detachably connected with the two-port of center 820, is convenient for quick assembly and disassembly, while convenient for tieing up to the device of its inside Shield, maintenance and replacement.

In the present embodiment, center 820 includes main frame 821 and rear side panel 823, wherein main frame is in its side Face, which offers, assigns mouth 822, and rear side panel, which is detachably connected on, to be assigned at mouth 822.Air outlet 805 is set on rear side panel, and It is provided with multiple and is in bar shaped.

In the present embodiment, rear side panel 823 is connected to the assigning at mouth 822 of main frame 821 by buckle structure.Main frame The lower end of body 821 and the lower end of rear side panel 823 pass through buckle structure and are connected on lower cover 830.The upper end of main frame 821 And the upper end of rear side panel 823 passes through buckle structure and is connected to upper cover 810.

In the present embodiment, projection shell 800 further includes plate type bracket 840, and signal receives head 730500 and is fixed on template On bracket 840, and plate type bracket 840 is fixed on the anterior cavity wall of accommodating chamber 801.

Fig. 1, Fig. 2 and Fig. 9 are please consulted simultaneously, and projection device further includes support frame 900, and support frame 900 includes support body frame 910, multiple downsides stood on the upper fixed column 920 for supporting the upper sides of body frame 910 and stand on support body frame 910 is more A first lower fixed column 930 and multiple second lower fixed columns 940, ray machine 100 are each attached to the upper of support body frame 910 with camera lens Side.Drive circuit board 600 is fixed on the top of each upper fixed column 920, and main control board 300 is fixed on the first lower fixed column 930 Top, it is possible to understand that ground, drive circuit board 600 and main control board 300 are fixed far from support body frame 910.

Please refer to Fig. 1 to Fig. 3 and Fig. 9, in the present embodiment, support 910 body of body frame is equipped with upwardly in its downside First resettlement groove 911, and in 911 cell wall of the first resettlement groove offer first support hole 912 and in the slot of the first resettlement groove 911 Bottom offers second support hole 913, and fan 10 is fixed in the first resettlement groove 911, first support hole 912 and the first exhaust outlet 1012 is opposite, and second support hole 913 and air inlet 1011 are opposite.100 part of ray machine inserts in support body frame 910 and drive circuit board It is between 600 and opposite with second support hole 913, and there are the spaces for wind flow between support body frame 910, improve ray machine 100 be rate of heat dissipation.

Please refer to Fig. 1 to Fig. 3, Fig. 6 and Fig. 9, specifically, body frame 910 is supported to be equipped with the second peace downwards in upside Slot 914 is set, the second resettlement groove 914 is connected to the first resettlement groove 911 by first support hole 912, and support body frame 910 is in the second peace It sets 914 cell wall of slot and opens up the third bracket holes 915 opposite with first support hole 912, third bracket holes 915 and 805 phase of air outlet It is right.End in first heat-conductive assembly 20 far from ray machine 100 is placed in the second resettlement groove 914, meanwhile, the first heat-conductive assembly 20 Effect is ray machine 100 to be generated to heat derives to far from end, and wind is that have first support hole 912 to flow to third bracket holes 915, in this way, helping to take away in the first heat-conductive assembly 20 heat for the end being located in the second resettlement groove 914, and by it from out Air port 805 is discharged.In this way, forming proprietary air exhaust passage to the discharge of heat, improve radiating efficiency, avoid overheat it is distinguished and admirable again It is secondary to flow back into accommodating chamber 801, the temperature of internal component is improved, the normal work of projection device is influenced.

Please refer to Fig. 1 to Fig. 3, Fig. 7 and Fig. 9, in the present embodiment, the first heat-conductive assembly 20 include heat dissipation group 21, At least one thermally conductive sheet 22 and at least one heat conducting bar 23, heat dissipation group 21 are placed in the second resettlement groove 914.Each thermally conductive sheet 22 is solid Be scheduled on 100 side wall of ray machine and with 100 face contact of ray machine, in this way, facilitate increase heat conduction amount.The one end of each heat conducting bar 23 is distinguished It is fixed in a thermally conductive sheet 22 and the opposite facing surface of ray machine 100, to draw the heat on thermally conductive sheet 22, each heat conducting bar 23 The other end insert in heat dissipation group 21, heat dissipation group 21 has multiple vented cavities 2011, and an accent of each vented cavity 2011 with First support hole 912 is opposite, and another accent and third bracket holes 915 are opposite, convenient for the circulation of wind, while being convenient for wind fast speed belt Walk the heat of the generation of heat dissipation group 21.

Please refer to Fig. 1 to Fig. 3, Fig. 7 and Fig. 9, specifically, heat dissipation group 21 includes multiple heat radiating fins to stack together Piece 2012 has above-mentioned vented cavity 2011 between two radiating fins 2012 of arbitrary neighborhood.Heat conducting bar 23 generates ray machine 100 Heat guide to each radiating fin 2012, and each heat dissipation is taken away via the wind that the first exhaust outlet 1012 is blown out by fan 10 Heat on fin 2012 effectively increases radiating surface by the setting of each radiating fin 2012, improves radiating efficiency.Each heat dissipation Fin 2012 is placed in the second resettlement groove 914.

In the present embodiment, each thermally conductive sheet 22 in the opposite facing surface of ray machine 100 be equipped with stem guiding trough 2201, heat conducting bar 23 End be placed in stem guiding trough 2201.

Further please refer to Fig. 1 to Fig. 3 and Fig. 8, cooling system 1 further includes the second heat-conductive assembly 40, projection Shell 800 offers thermovent 806 in the cavity wall of accommodating chamber 801, and the one end of the second heat-conductive assembly 40 is connect simultaneously with ray machine 100 The heat that ray machine 100 generates is conducted to its other end, end and thermovent in the second heat-conductive assembly 40 far from ray machine 100 806 is opposite.In this way, further improving the heat dissipation effect of ray machine 100.

Please refer to Fig. 1 to Fig. 3, Fig. 8 and Fig. 9, the second heat-conductive assembly 40 include heat radiation module 41, at least one draw heat Piece 42 and at least one draw hot rod 43, heat radiation module 41 is placed in the second resettlement groove 914, and each heat guide fin 42 is fixed on ray machine 100 side walls and with 100 face contact of ray machine, in this way, facilitate increase draw heat.The one end for respectively drawing hot rod 43 is separately fixed at one Respectively draw the other end of hot rod 43 to draw the heat on heat guide fin 42 with the opposite facing surface of ray machine 100 in heat guide fin 42 Portion inserts in heat radiation module 41, and heat radiation module 41 has multiple heat dissipation cavities 4011, and an accent thermovent of each heat dissipation cavity 4011 806 is opposite, convenient for the heat in heat radiation module 41 is shed by thermovent 806.

In the present embodiment, heat radiation module 41 be located at support body frame 910 upside, in this way, due to second support hole 913 with Air inlet 1011 is opposite, then, thermovent 806 also can be used as air inlet 804, and the distinguished and admirable heat dissipation through heat radiation module 41 entered Chamber 4011 through passing through fan 10, then has the first exhaust outlet 1012, air outlet by heat as air draught direction leads to air inlet 1011 805 are expelled to except projection device.In this way, improving 100 heat dissipation effect of ray machine.And the effect of heat dissipation cavity 4011 is easy for the stream of wind It is logical, while the heat that heat dissipation group 21 generates is walked convenient for wind fast speed belt.

Specifically, heat radiation module 41 includes multiple heat-dissipating fins 4012 to stack together, two radiating wings of arbitrary neighborhood There are above-mentioned heat dissipation cavities 4011 between piece 4012.Draw hot rod 43 to guide the heat that ray machine 100 generates to each heat-dissipating fin On 4012, and radiated by thermovent 806 or the wind that is introduced by thermovent 806 is by the heat band on each heat-dissipating fin 4012 Radiating surface is effectively increased by the setting of each heat-dissipating fin 4012 to air inlet 1011, improves radiating efficiency.

Please refer to Fig. 1 to Fig. 3 and Fig. 6, further, cooling system 1 further includes being affixed on 110 side of optical machine main body Multiple second radiating pieces 50.In this way, improving the heat dissipation area of optical machine main body 110.In the present embodiment, second radiating piece 50 Structure is identical as the structure of the first radiating piece 30, and details are not described herein again.

In the present embodiment, air inlet 804 and thermovent 806 are provided with two sides opposite in main frame 821, and go out Air port 805 is provided with rear side panel 823.

Please refer to Fig. 1, Fig. 6 and Figure 12, further, projection device further includes at least one and main control chip 320 The loudspeaker 2 of connection are controlled, each loudspeaker 2 are laid in accommodating chamber 801, and projection shell 800 offers at least in 801 cavity wall of accommodating chamber The sound end that goes out of one sound outlet hole 807, each loudspeaker 2 inserts in a sound outlet hole 807 respectively.In this way, further enriching projection device Functional characteristic.User is improved to its experience property.

Please refer to Fig. 1, Fig. 6 and Figure 12, further, projection device further includes the speaker for being fixed on accommodating chamber 801 Structure 3, loudspeaker box structure 3 include with the first cabinet 60 and the first cabinet 60 with the first cavity and for disposing each loudspeaker 2 It connects and second cabinet 70 with the second cavity being connected to the first cavity and the bleed passage in the second cavity.

First cabinet 60 offers at least one speaker hole 6011 in the first cavity cavity wall, and each speaker hole 6011 is respectively with one Sound outlet hole 807 is opposite, and the sound end that goes out of each loudspeaker 2 inserts in a speaker hole 6011 respectively.

Second cabinet 70 offers bleeder port 6012 in the bottom of chamber of the second cavity, projects shell 800 in the chamber of accommodating chamber 801 Bottom offers lower through-hole 808, and lower through-hole 808 is connected to bleeder port 6012, and the Single port of bleed passage and each loudspeaker 2 are opposite and another Single port and bleeder port 6012 are opposite to export the air-flow generated by each loudspeaker 2 because sound film vibrates.In this way, being used for balanced loud-speaker Air pressure fluctuation is generated since sound film vibrates inside structure 3, improves the sound quality of each loudspeaker 2.

In the present embodiment, loudspeaker box structure 3 is fixed on 801 bottom of chamber of accommodating chamber, and the first cabinet 60 and 70 phase of the second cabinet To being vertically arranged, the first cabinet 60 and the rear cavity wall of accommodating chamber 801 are facing, and the second cabinet 70 is fixed on 801 bottom of chamber of accommodating chamber.

Please refer to Fig. 1, Fig. 6 and Figure 12, specifically, projection shell 800 is equipped with lantern ring 6013 and tool in its bottom There is the net mounting 6014 of multiple mesh, lantern ring 6013 is placed on lower through-hole 808, and net mounting 6014 is fixed on accommodating chamber 801 Lower cavity wall simultaneously covers lower through-hole 808.In this way, reducing dust enters speaker.The lantern ring 6013 is sealing ring, the chamber of accommodating chamber 801 Bottom and the lower surface of the second cabinet 70 squeeze the lantern ring 6013, realize sealing.The airflow influence second in accommodating chamber 801 is avoided to hold Intracavitary air pressure.

In the present embodiment, the serpentine-like arrangement of bleed passage avoids outer thus it is possible, on the one hand, extending the length of bleed passage Boundary's air imports rapidly, increases speaker air pressure inside, influences the sound quality of each loudspeaker 2；On the other hand, speaker can be better balanced Air pressure inside improves the sound quality of each loudspeaker 2.

In the present embodiment, the top of each second lower fixed column 940 in supporting support 742 is butted on the second cabinet 70, and It is fixed on the second cabinet 70.

Please refer to Fig. 1 and Figure 10, further, shell mechanism further includes lens cap device 4, and lens cap device 4 wraps Include the cunning for being located at the sliding rail frame 80 at projection hole 802 in the cavity wall for being fixed on accommodating chamber 801 and being slidably connected with sliding rail frame 80 Lid 90, sliding rail frame 80 offer the camera aperture 8011 being connected to projection hole 802, and projection lens 200 slides to camera aperture in slip lid 90 8011 and there is opening state with occlusion state when covering camera aperture 8011 and when slip lid 90 slips away camera aperture 8011.This Sample only need to slide slip lid 90, be at opening state when needing to carry out to project broadcasting using projection device or screen is conversed ?；When not needing using projection device, slip lid 90 is slided, occlusion state is at, in this way, extraneous dust can be reduced Before being deposited in projection lens 200, improves the drop shadow effect of projection lens 200 and prolong its service life.

In the present embodiment, sliding rail frame 80 has extended in the same direction slideway 8012 in its opposite sides side, and two slideways 8012 are mutually Extend up and down in parallel and,

Lens cap device 4 further includes being set to that one end is rotationally connected with slip lid 90 and the other end is rotationally connected with sliding rail The elastic component 8013 of frame 80, elastic component 8013 have screw-pinch state when slip lid 90 is in occlusion state and at slip lids 90 There is open configuration when opening state, elastic component 8013 is in screw-pinch state in the shape of a spiral and to slip lid 90 and sliding rail frame 80 apply tightening force, and are supported between slip lid 90 and sliding rail frame 80 in open configuration, avoid slip lid 90 to camera aperture 8011 Sliding, still, as long as applying the support equilibrium state that external force breaks elastic component 8013 to slip lid 90, slip lid 90 is acted in restoring force Lower automatic sliding simultaneously covers camera aperture 8011.

In the present embodiment, surface facing with sliding rail frame 80 in slip lid 90 is convexly equipped with connecting column, in sliding rail frame 80 with The facing surface of slip lid 90 has protruded out connecting column, and the one end of elastic component 8013 is rotatably connected on connecting column and the other end turns It is dynamic to be connected to connecting column.

In the present embodiment, slip lid 90 is located relatively at the lower section of camera aperture 8011 in the open mode, sliding rail frame 80 in The facing surface of slip lid 90 is convexly equipped at least one support column 8014, and each support column 8014 is respectively positioned on same horizontal line, slip lid 90 are butted in the open mode on each support column 8014.In this way, realizing the limit of slip lid 90.

Lens cap device 4 further includes the position switch 8015 for being connected on sliding rail frame 80 and being used to incude 90 position of slip lid, Position switch 8015 is connect with main control chip 320, the trigger position switch 8015 when being in occlusion state of slip lid 90, to close light Machine 100, ray machine 100, which is in, closes shape body；The trigger position switch 8015 again in the open state of slip lid 90, to open ray machine 100 are projected, and ray machine 100 is in the open state.Specifically, position switch 8015 can be Hall switch.It is slided in this way, realizing Lid 90 and ray machine 100 link.

Please refer to Fig. 1 and Figure 11, in the present embodiment, projection device further includes display structure 400, shows structure 400 include the light source bracket 410 for being fixed on the upper face of drive circuit board 600, the light source for being fixed on 410 upper surface of light source bracket Light source top cover 420 on plate 430 and cover button light source board 430, light source board 430 and drive circuit board 600 are electrically connected, and projection is outer Shell 800 offers loophole 809 in the upper cavity wall of accommodating chamber 801, and light source top cover 420 is threaded through loophole 809.Light source top cover 420 in the radium-shine Logo pattern for having light-permeable in the surface facing with light source board 430, in this way, projection 800 top surface of shell can be shown Show the Logo pattern of the projection device.

The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle Within the scope of shield.

Claims (10)

1. a kind of projection device characterized by comprising

There is projection lens projection to inject end and the projection ejecting end opposite with the projection injection end；

Ray machine, for generating projection ray and having light ejecting end, the ray machine includes taking for handling light source and reflecting The optical machine main body of coloured light with broadcast information and set on the optical machine main body and for receiving the coloured light and by the color Light emitting injects the dmd chip at end to the projection of the projection lens, and projection injection end is docked with the light ejecting end；

Cooling system comprising the first radiating piece and one end are affixed on the optical machine main body and for generating the optical machine main body Heat guide to first heat-conductive assembly of its other end, first radiating piece is affixed on the optical machine main body and closes on described Dmd chip；

Induced draft structure, for introducing and being discharged wind, the induced draft structure is located relatively at the lower section of optical machine main body and has air draught Mouth and the first exhaust outlet, the air inlet are opposite with the optical machine main body；

Project shell, projection hole, air inlet and the outlet air that the projection shell has accommodating chamber and is connected to the accommodating chamber Mouthful, the ray machine, the cooling system, the projection lens and the induced draft structure are placed in the accommodating chamber, described The projection ejecting end of projection lens inserts in the projection hole, the air inlet be located relatively at the upside of the optical machine main body and with The dmd chip is opposite, and the air outlet is opposite with first exhaust outlet, far from the ray machine in first heat-conductive assembly The end of main body is placed between the air outlet and first exhaust outlet.

2. projection device as described in claim 1, which is characterized in that the projection device further includes main control board, described Main control board includes master control plate body and the main control chip that is laid on the master control plate body, the induced draft structure and the light Machine is electrically connected with the main control chip, and is controlled by the main control chip；

The induced draft structure also has second exhaust outlet opposite with the air inlet, and the main control chip is located relatively at described draw The lower section of wind structure, and it is opposite with second exhaust outlet.

3. projection device as claimed in claim 2, which is characterized in that the projection device further includes for adjusting the projection The focus adjusting mechanism of lens focus；

The projection lens includes the lens sleeve of lens bodies and the socket lens bodies, and the lens sleeve is in its cylinder Wall offers the spiral slide extended spirally around the axis of the lens sleeve；

The focus adjusting mechanism include one end pass through the spiral slide and connect with the lens bodies focusing structure, with it is described Focusing structure connect and be used to that the focusing structure to be driven to operate and drive the driving device of lens bodies displacement focusing with And the signal of the focussing signals for receiving remote controler sending receives head, the signal receives head and the driving device signal connects It connects, the driving device is electrically connected with the main control chip, and is controlled by the main control chip.

4. projection device as claimed in claim 3, which is characterized in that the focusing structure include driving gear and with it is described The driven rack gear that driving gear is meshed；

The driving device is fixed on the lens sleeve and has power output shaft, and it is defeated that the driving gear is placed on the power Shaft, the driven rack gear are affixed on the outer tube wall of the lens sleeve and connect with the lens bodies, and the driven rack gear exists The driving gear drives the lower axis around the lens bodies and the spiral path rotational slide along the spiral slide So that the lens bodies are along its axis shift.

5. projection device according to any one of claims 1 to 4, which is characterized in that the cooling system further includes being affixed on Multiple second radiating pieces of the optical machine main body side.

6. projection device according to any one of claims 1 to 4, which is characterized in that the cooling system further includes second Heat-conductive assembly, the projection shell offer thermovent, the one end of second heat-conductive assembly in the cavity wall of the accommodating chamber It is connect with the ray machine and conducts the heat that the ray machine generates to its other end, far from institute in second heat-conductive assembly The end for stating ray machine is opposite with the thermovent.

7. projection device as claimed in claim 2, which is characterized in that the projection device further includes at least one and the master The loudspeaker that control chip is electrically connected and is controlled by the main control chip, each loudspeaker are laid in the accommodating chamber, the projection Shell offers at least one sound outlet hole in the accommodating chamber cavity wall, and the sound end that goes out of each loudspeaker inserts in a sound out respectively Hole.

8. projection device as claimed in claim 7, which is characterized in that the projection device further includes being fixed on the accommodating chamber Loudspeaker box structure, the loudspeaker box structure include with the first cavity and for dispose each loudspeaker the first cabinet, with First cabinet connects and has the second cabinet of the second cavity being connected to first cavity and set on described second Bleed passage in cavity；

First cabinet offers at least one speaker hole in the first cavity cavity wall, each speaker hole respectively with an institute State that sound outlet hole is opposite, the sound end that goes out of each loudspeaker inserts in a speaker hole respectively；

Second cabinet offers bleeder port in the bottom of chamber of second cavity, and the projection shell is in the chamber of the accommodating chamber Bottom offers lower through-hole, and the lower through-hole is connected to the bleeder port, the Single port of the bleed passage and each loudspeaker phase Pair and another port it is opposite with the bleeder port to export by each loudspeaker the air-flow that generates due to sound film vibrates.

9. projection device according to any one of claims 1 to 4, which is characterized in that the projection shell include upper cover, in Frame and lower cover, the upper cover are removably fastened on the upper port of the center, and the lower cover is removably fastened on described The lower port of center.

10. projection device according to any one of claims 1 to 4, which is characterized in that the projection shell further includes camera lens Lid arrangement, the lens cap device include be fixed on the accommodating chamber cavity wall in be located at the projection hole at sliding rail frame and The slip lid being slidably connected with the sliding rail frame, the sliding rail frame offer the camera aperture being connected to the projection hole, the projection Camera lens has occlusion state when the slip lid slides to the camera aperture and covers the camera aperture and slips away institute in the slip lid There is opening state when stating camera aperture.