CN106405999A

CN106405999A - Projector

Info

Publication number: CN106405999A
Application number: CN201610845789.XA
Authority: CN
Inventors: 李锦奎; 施富雄
Original assignee: Qisda Optronics Suzhou Co Ltd; Qisda Corp
Current assignee: Qisda Optronics Suzhou Co Ltd; Qisda Corp
Priority date: 2016-09-23
Filing date: 2016-09-23
Publication date: 2017-02-15

Abstract

The invention discloses a projector, which comprises a casing and a lens unit, wherein the casing is provided with a first sidewall, a second sidewall, a third sidewall and a fourth sidewall which are connected, wherein the first sidewall and the third sidewall are opposite; the second sidewall and the fourth sidewall are opposite; the lens unit is arranged on the first sidewall; the projector comprises an air inlet, an air outlet, a first cavity, a second cavity, a third cavity, a first fan and a second fan, wherein the first cavity, the second cavity and the third cavity are connected. The air inlet is arranged in the first sidewall and is close to the second sidewall; the air outlet is arranged in the fourth sidewall and is close to the first sidewall; the first cavity and the third cavity are respectively arranged on two opposite sides of the second cavity, the air outlet is arranged in the first cavity, and the air inlet is connected to the third cavity; the first fan is arranged in the third cavity; the second fan is arranged in the first cavity or the second cavity; a flow path of cooling airflow enters the third cavity, the second cavity and the first cavity from the air inlet in sequence and discharges out of the projector from the air outlet lastly.

Description

A kind of projector

Technical field

The present invention relates to a kind of projector, more particularly, to a kind of take into account radiating and noise reduction and dust-proof projector.

Background technology

It is noise demand that there is the important specification of item in projector, and the especially machine of high-order/high resolution even more has this part Specific demand, such as home projector because the radiating requirements of internal system, the rotation motor structure of various fan, is to make Become the main cause that noise decibel cannot reduce, so, how to design to take into account radiating and noise reduction by projector system, become industry Important topic.

Content of the invention

In order to solve above-mentioned technical problem, the present invention provides a kind of taking into account to radiate and noise reduction and dust-proof projector.

Above-mentioned projector, including casing and lens unit, this casing have connected the first side wall, second sidewall, Three side walls and the 4th side wall, this first side wall is relative with the 3rd side wall, and this second sidewall is relative with the 4th side wall, this camera lens Unit is arranged on this first side wall, and this projector includes：

Air inlet, this air inlet is arranged at this first side wall, and this air inlet is near this second sidewall；

Air outlet, this air outlet is arranged at the 4th side wall, and this air outlet is near this first side wall；

First chamber, second chamber and the 3rd chamber being connected, and this first chamber and the 3rd chamber are located at this respectively The opposite sides of second chamber, this gas outlet is located in this first chamber；This air inlet connects the 3rd chamber,

First fan, this first fan is arranged in the 3rd chamber, and this first fan in order to enter cooling air-flow from this Air port is pumped to the 3rd chamber；And

Second fan, this second fan is arranged in this first chamber or this second chamber, in order to by this cooling air-flow certainly This second chamber is pumped to this first chamber；

Wherein, the circulation path of this cooling air-flow be from this air inlet sequentially enter the 3rd chamber, this second chamber and This first chamber, finally discharges this projector from this air outlet.

As optional technical scheme, this first chamber and this second chamber only by the first open communication, this second chamber Room and the 3rd chamber are only by the second open communication.

As optional technical scheme, this second fan is acute angle with the angle of this first side wall and the 4th side wall.

As optional technical scheme, in this first chamber, there is hush pipe, the inwall of this hush pipe attaches noise reduction foam, This cooling air-flow flows through after this hush pipe to this air outlet.

As optional technical scheme, the 3rd chamber to the position of air inlet the 3rd opening should be provided with, the 3rd There is between opening and this first side wall the first distance.

As optional technical scheme, the cooling air entering within this projector is divided into first flow by the 3rd opening And second flow channel, this cooling air in this first flow is sucked up to the 3rd chamber, and this cooling in this second flow channel is empty Gas enters the space in this casing and this first chamber, this second chamber and the 3rd chamber outer surface between.

As optional technical scheme, in this second chamber, there is light source cell, in the 3rd chamber, there is circuit unit.

As optional technical scheme, this first fan is more than this first fan and the 3rd side with the distance of this air inlet The distance of the distance of wall, this second fan and this air outlet is more than the distance of this second fan and the 3rd side wall.

As optional technical scheme, this projector also includes the 4th chamber, the 4th chamber be located at this lens unit with Between this second chamber, and the 4th chamber is also only connected by the 4th opening with this second chamber.

As optional technical scheme, this projector also includes three fan, and this three fan is arranged at the 4th chamber Go up and this three fan is perpendicular to this first side wall and this second sidewall.

As optional technical scheme, in the 4th chamber, there is colour wheel unit.

Compared to prior art, the projector of the present invention can form solid by the first chamber being connected to the 3rd chamber The order of the circulation path of fixed cooling air-flow, the radiating being caused with preventing the backflow of high temperature gas flow is bad；Further, exist In first chamber residing for air outlet, hush pipe is set, takes into account the effect that can reach noise reduction while radiating；In addition, in colour wheel institute In 4th chamber at place, three fan and the 4th opening being connected with second chamber are set, non-immediate draw outside air-flow enters Row radiating, takes into account and can reach dust-proof purpose while radiating.

Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.

Brief description

Fig. 1 is the schematic diagram of projector of the present invention；

Fig. 2 is the top view of projector of the present invention；

Fig. 3 is for the projector in Fig. 1 along the generalized section on A-A direction.

Specific embodiment

Fig. 1 is the schematic diagram of projector of the present invention, refer to Fig. 1.Projector 100 includes casing 110 and lens unit 120, casing 110 includes connected the first side wall 111, second sidewall 112, the 3rd side wall 113 and the 4th side wall 114, and wherein Side wall 111 is relative with the 3rd side wall 113, and second sidewall 112 is relative with the 4th side wall 114, and lens unit 120 is arranged at first On side wall 111.

Fig. 2 is the top view of projector of the present invention, please with reference to Fig. 1, Fig. 2.Projector 100 includes air inlet 131, goes out Air port 132, the first chamber 141 being connected, second chamber 142 and the 3rd chamber 143, the first fan 151 and the second fan 152.In FIG, first chamber 141, second chamber 142 and the 3rd chamber 143 not entirely shown, in the present embodiment, First chamber 141, second chamber 142 and the 3rd chamber 143 are the cavity of airtight cuboid.

Air inlet 131 is arranged at the first side wall 111, and air inlet 131 is near second sidewall 112；Air outlet 132 is arranged at 4th side wall 114, and air outlet 132 is near the first side wall 111；First chamber 141 and the 3rd chamber 143 are located at the second chamber respectively The opposite sides of room 142, the first chamber 141 being connected, second chamber 142 and the 3rd chamber 143 form a circulation passage, This circulation passage can be described as the fixing circulation path in projector 100, and air outlet 132 is located in first chamber 141, that is, first The opening of chamber 141 is arranged on the 4th side wall 114；The 3rd opening (not illustrating) on corresponding 3rd chamber 143 of air inlet 131 Setting, has the first distance between the 3rd opening of the 3rd chamber 143 and the first side wall 111, for example, the first distance is more than second The half of side wall 112 length, that is, the 3rd opening be closer to the 3rd side wall 113 compared to the first side wall 111.First fan 151 It is arranged in the 3rd chamber 143, during projector 100 work, cooling air enters inside projector 100 from air inlet 131, by Above-mentioned 3rd opening, cooling air is divided into first flow and second flow channel, first flow represent most cooling air from Air inlet 131 is sucked up to the 3rd chamber 143, then flows through the 3rd chamber 143 being connected and finally flows to first chamber 141 Go out to the outside of casing 110, above-mentioned first flow provides the cooling air-flow on the fixing circulation path in projector 100；Second Runner represents least a portion of cooling air and enters the space and all chamber outer surfaces between in casing 110.When actually used, if There is dust from the cooling air-flow of projector 100 external suction, because the wind speed of first flow is fast, the big portion in cooling air Divide dust can enter first flow, therefore enter the dust meeting in casing 110 and the cooling air of chamber outer surface from second flow channel Less, above-mentioned second flow channel provides the cooling air on the on-fixed circulation path in projector 100 can make casing 110 in the lump Surface temperature reduces；Second fan 152 is arranged in first chamber 141 or second chamber 142, in order to by cooling air-flow from second Chamber 142 is pumped to first chamber 141.In the present embodiment, the first fan 151 and the second fan 152 are aerofoil fan.

So, cooling air-flow is through the mechanism of above-mentioned projector, you can cooling air-flow as shown in Fig. 2 arrow for the formation Fixing circulation path, the radiating that fixing circulation path can prevent the backflow of high temperature gas flow and cause is bad.Circulation path is certainly Air inlet 131 sequentially enters the 3rd chamber 143, second chamber 142 and first chamber 141, finally discharges projection from air outlet 132 Machine 100.

In the present embodiment, first chamber 141 is only connected by the first opening 161 with second chamber 142, second chamber 142 are only connected by the second opening 162 with the 3rd chamber 143.

In the present embodiment, the second fan 152 and the angle of the first side wall 111 and the 4th side wall 114 are acute angle, this The purpose of sample setting is to realize cooling air-flow from second chamber 142 to the steering at the similar right angle of first chamber 141, shape Become to flow to the circulation path of air outlet 132.

For reaching the purpose of noise reduction, present embodiment can arrange hush pipe (not shown), Yi Jike in first chamber 141 Restriction is made to the position of the first fan 151 and the second fan 152, and hush pipe than the second fan 152 closer to air outlet 132.Then the inwall in hush pipe attaches noise reduction foam, and cooling air-flow flows through after hush pipe to air outlet 132, flows through hush pipe When, hush pipe carries out absorbing the effect reaching noise reduction to the noise entrained by cooling air-flow；First fan 151 and air inlet 131 Between distance be more than distance between the first fan 151 and the 3rd side wall 113, the distance between the second fan 152 and air outlet 132 is big Distance between the second fan 152 and the 3rd side wall 113, that is, the first fan 151 is away from air inlet 131, the second fan 152 away from Air outlet 132, so, the first fan 151 and the second fan 152 rotate produced noise away from air inlet 131 and air outlet 132.Again element larger for noise is separately positioned in above-mentioned chamber, for example, light source cell (not illustrating) is arranged on In two chambers 142, circuit unit (not illustrating) is arranged in the 3rd chamber 143, so, light source cell or circuit unit also or Person's the first fan 151 and noise produced by the second fan 152 can be controlled in circulation passage, then through first chamber 141 The Noise Reduction of middle hush pipe, you can reach the effect of noise reduction while taking into account radiating.

In projector, some elements are had to also need to carry out dust-proof while being radiated, such as colour wheel unit (is not painted Show).Fig. 3 be Fig. 1 in projector along the generalized section on A-A direction, please with reference to Fig. 1, Fig. 2 and Fig. 3.In this enforcement In mode, projector 100 also includes the 4th chamber 144 and three fan 153, and the 4th chamber 144 is located at lens unit 120 and the Between two chambers 142, and the 4th chamber 144 is also only connected by the 4th opening 163 with second chamber 142, and colour wheel unit is set It is placed in the 4th chamber 144.Three fan 153 is arranged on the 4th chamber 144 and three fan 153 is perpendicular to the first side wall 111 with second sidewall 112.The cooling air-flow that three fan 153 can aspirate on the on-fixed circulation path in projector 100 enters 4th chamber 144, and entrained dust on on-fixed circulation path can be less, so through the circulation of above-mentioned cooling air-flow, Element in 4th chamber 144, such as colour wheel unit, have also taken into account dust-proof demand while radiating good, in addition, colour wheel Noise produced by unit rotational also finally can be absorbed by hush pipe through second chamber 142 to first chamber 141, reaches noise reduction Effect.

In sum, the projector of the present invention is by the first chamber being connected to the 3rd chamber, can be formed fixing cold But the order of the circulation path of air-flow, the radiating being caused with preventing the backflow of high temperature gas flow is bad；Further, in air outlet In residing first chamber, hush pipe is set, takes into account the effect that can reach noise reduction while radiating；In addition, residing in colour wheel In four chambers, three fan and the 4th opening being connected with second chamber are set, non-immediate draw outside air-flow is radiated, Take into account and while radiating, can reach dust-proof purpose.

Certainly, the present invention also can have other various embodiments, in the case of without departing substantially from present invention spirit and its essence, ripe Know those skilled in the art to make various corresponding changes according to the present invention and deform, but these corresponding changes and deformation The protection domain of appended claims of the invention all should be belonged to.

Claims

1. a kind of projector, including casing and lens unit, this casing has connected the first side wall, second sidewall, the 3rd side Wall and the 4th side wall, this first side wall is relative with the 3rd side wall, and this second sidewall is relative with the 4th side wall, this lens unit It is arranged on this first side wall it is characterised in that this projector includes：

First chamber, second chamber and the 3rd chamber being connected, and this first chamber and the 3rd chamber respectively be located at this second The opposite sides of chamber, this gas outlet is located in this first chamber, and this air inlet connects the 3rd chamber；

First fan, this first fan is arranged in the 3rd chamber, this first fan in order to by cooling air-flow from this air inlet It is pumped to the 3rd chamber；And

Second fan, this second fan is arranged in this first chamber or this second chamber, in order to by this cooling air-flow from this Two chambers are pumped to this first chamber；

Wherein, the circulation path of this cooling air-flow be from this air inlet sequentially enter the 3rd chamber, this second chamber and this One chamber, finally discharges this projector from this air outlet.

2. projector according to claim 1 is it is characterised in that this first chamber is only opened by first with this second chamber Mouth connection, this second chamber and the 3rd chamber are only by the second open communication.

3. projector as claimed in claim 1 is it is characterised in that this second fan and this first side wall and the 4th side wall Angle is acute angle.

4. projector as claimed in claim 1 is it is characterised in that have hush pipe in this first chamber, this hush pipe interior Wall attaches noise reduction foam, and this cooling air-flow flows through after this hush pipe to this air outlet.

5. projector as claimed in claim 1 is it is characterised in that the 3rd chamber is to the position of air inlet should being provided with Three openings, have the first distance between the 3rd opening and this first side wall.

6. projector as claimed in claim 5 will be it is characterised in that the 3rd opening will enter the cooling sky within this projector Gas is divided into first flow and second flow channel, and this cooling air in this first flow is sucked up to the 3rd chamber, this second This cooling air in road enters the sky in this casing and this first chamber, this second chamber and the 3rd chamber outer surface between Between.

7. projector as claimed in claim 1 is it is characterised in that have light source cell in this second chamber, the 3rd chamber In there is circuit unit.

8. projector as claimed in claim 1 it is characterised in that the distance of this first fan and this air inlet be more than this first Fan and the distance of the 3rd side wall, this second fan is more than this second fan and the 3rd side wall with the distance of this air outlet Distance.

9. projector as claimed in claim 1 is it is characterised in that this projector also includes the 4th chamber, the 4th chamber position Between this lens unit and this second chamber, and the 4th chamber is only connected by the 4th opening with this second chamber.

10. projector as claimed in claim 9 it is characterised in that this projector also includes three fan, this three fan sets It is placed on the 4th chamber and this three fan is perpendicular to this first side wall and this second sidewall.

11. projectors as claimed in claim 9 are it is characterised in that have colour wheel unit in the 4th chamber.