JP2010181579A - Projector device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projector device which is advantageous for achieving miniaturization and thinning while efficiently cooling a lamp. <P>SOLUTION: An axial fan 54 is arranged such that a fan exhaust port 62 is opposed to a first air exit 22A and a second fan suction port 60 is located on an opposite side to a second side surface (left side surface 12E). A reflector 48 is arranged as follows. Both sides of a side part 48C except a front end 48A are opposed to the fan exhaust port 62 and the first air exit 22A between the fan exhaust port 62 and the first air exit 22A inside the housing 12. A rear end 48B is opposed to a second air exit 22B. Furthermore, an air exhaust port 52 is arranged to be located near the second fan suction port 60. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a projector apparatus.

A housing, a light source device provided in the housing, and a video projection unit that generates and emits an image projection light beam from light generated in the light source device provided in the housing and projects an image on a screen. A projector device is provided.
The light source device uses a high output discharge lamp as a lamp for generating light.
Since this type of lamp becomes hot during operation, it is necessary to cool the lamp by applying cooling air to ensure the brightness of the lamp and extend the life of the lamp.
Therefore, a dedicated cooling fan that strikes the cooling air against the lamp, and an exhaust that mixes the heated cooling air after it strikes the lamp with the air inside the housing and guides it outside the housing. There has been proposed a projector device provided with a fan for use (see Patent Document 1).
In this projector apparatus, an axial fan having an impeller and a case that surrounds the outer periphery of the impeller and has a case in which both ends in the rotation axis direction of the impeller are formed as a fan inlet and a fan outlet is used as the exhaust fan. Yes.
The axial flow fan is disposed with the fan suction port facing the lamp and the fan discharge port facing the exhaust opening provided in the housing.

JP 2005-326891 A

However, in the above prior art, it is necessary to secure a wide space as an air path for smoothly guiding the cooling air after cooling the lamp to the fan intake port of the axial flow fan. There was a disadvantage in making it easier.
The present invention has been made in view of such circumstances, and an object thereof is to provide a projector device that is advantageous in reducing the size and thickness of the lamp while efficiently cooling the lamp.

  In order to achieve the above object, a projector device according to the present invention includes a housing, a lamp that generates light, a reflector that houses the lamp and reflects light generated by the lamp, and a reflector that includes the lamp. A light source device having an air supply port for supplying air for cooling the inside to the inside of the reflector, and an air discharge port for discharging the air after cooling the inside of the reflector including the lamp to the outside of the reflector And an image projection unit that generates and emits an image projection light beam using the light of the light source device and projects an image on a screen, an impeller, and both ends of the impeller in the rotation axis direction surrounding the outer periphery of the impeller Has a case formed as a first fan inlet and a fan outlet, and a second fan inlet formed in a part of the case surrounding the outer periphery of the impeller And a flow fan, the axial flow fan is arranged by positioning the second fan inlet in the vicinity of the air outlet.

  According to the present invention, since the heated air after cooling the inside of the lamp and the reflector is efficiently sucked into the axial fan from the second fan inlet, the projector device can be made compact while the light source device is efficiently cooled. This is also advantageous for achieving this.

It is a top view which shows the internal structure of the projector apparatus 10 of this Embodiment. It is A arrow directional view of FIG. It is a B arrow line view of FIG. It is the perspective view which looked at the projector apparatus 10 from the front. It is the perspective view which looked at the projector apparatus 10 from back. 1 is a configuration diagram illustrating a configuration of a projector device 10. It is a perspective view of the axial fan 54 except the cover member 64B. It is a perspective view of cover member 64B. It is the perspective view which covered the cylinder part 6404 with the cover member 64B. 6 is an exploded perspective view of a first modification of the axial fan 54. FIG. 6 is a perspective view showing a first modification of the axial fan 54. FIG. FIG. 10 is a perspective view showing a second modification of the axial fan 54. It is a schematic plan view of the light source device 24 and the axial flow fan 54 part of this invention. FIG. 6 is a schematic plan view of a comparative example including an axial fan 55 having only a first fan inlet 58 and a fan outlet 62.

Next, an embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 4 to 6, the projector device 10 includes a housing 12, a light source device 24, a video projection unit 26, an axial fan 54 (FIG. 1), and a first cooling air supply unit 70. (FIG. 1) and the 2nd cooling air supply part 72 (FIG. 1) are comprised.
The housing 12 has a height, a length having a dimension larger than the height, and a width having a dimension larger than the length, and is formed in a flat rectangular plate shape.
The housing 12 includes a front surface 12A, a rear surface 12B, an upper surface 12C, a lower surface 12D, and left and right side surfaces 12E and 12F.
In the present embodiment, it is assumed that the projector device 10 is viewed from the screen side, the screen side is the front, the opposite side is the rear, and the left and right are the projector device 10 viewed from the front.

As shown in FIG. 4, an opening 14 is provided on the front surface 12A at a location closer to the right side surface 12F than the center in the width direction.
A projection optical system 40 that constitutes a part of a video projection unit 26 to be described later is provided at a location behind the opening 14 inside the housing 12.
A focus ring 16A and a zoom ring 16B are provided side by side in this order from the front to the rear at a position closer to the right side surface 12F than the center in the width direction of the upper surface 12C.
Further, behind the zoom ring 16B, an operation switch 16C, a menu switch 16D, an input selection switch 16E, an indicator 16F, and a power switch 16G are provided side by side in this order from the front to the rear with an interval in the front-rear direction.

The focus ring 16A is rotated when adjusting the focal length of the projection optical system 40 and adjusting the focus of the image projected on the screen.
The zoom ring 16B rotates when adjusting the magnification of the projection optical system 40 and adjusting the magnification of the image projected on the screen.
The operation switch 16C is operated when moving the cursor displayed on the menu screen projected on the screen.
The menu switch 16D is operated to display a menu screen on the screen or to stop displaying the menu screen.
The input selection switch 16E is operated when switching a plurality of image signals input to the projector device 10.
The indicator 16F indicates that it is time to replace a lamp 46 (FIG. 6) that constitutes a part of the video projection unit 26 described later, or that the temperature of the lamp 46 is higher than a predetermined temperature. is there.
The power switch 16G turns on / off the power of the projector device 10.
As shown in FIG. 6, the projector device 10 further includes a power supply unit 30.
The power supply unit 30 supplies power to the lamp 46. As shown in FIG. 2, the power supply unit 30 includes a plurality of printed circuit boards 3002 and electronic components such as capacitors, ICs, and power transformers mounted on the printed circuit boards 3002. It is configured to include. Note that the plurality of printed circuit boards 3002 are stacked at intervals in the vertical direction or at intervals in the horizontal direction. As will be described later, the cooling air flowing through the second supply path 72 </ b> A passes between the plurality of printed circuit boards 3002 in the power supply unit 30 to cool the power supply unit 30.
Since the electronic component generates heat when the power supply unit 30 supplies power to the lamp 46, it is necessary to cool the power supply unit 30 by applying cooling air to stabilize the operation of the power supply unit 30. It becomes.

In FIG. 5, reference numeral 1202 indicates a leg portion provided at the center in the width direction near the rear of the lower surface 12 </ b> D in order to place the projector device 10 on the placement surface.
Reference numeral 1204 denotes two adjustment screws that swing the projector device 10 up and down in a state where the projector device 10 is placed on the placement surface. By adjusting these adjustment screws 1204, the position of the image projected on the screen is adjusted by displacing the optical axis of the projection optical system 40 up and down.
Reference numeral 18 denotes an external signal input connector for inputting an image signal supplied from an external device such as a personal computer.

As shown in FIGS. 1 and 5, a first suction port 20 </ b> A for taking in air outside the housing 12 into the housing 12 is provided at a position near the right rear of the lower surface 12 </ b> D.
Further, a second suction port 20B for taking in air outside the housing 12 into the housing 12 is provided near the right front side of the lower surface 12D.
As shown in FIG. 1, fans 42 and 44 for sucking air outside the casing 12 into the casing 12 are provided in the first inlet 20A and the second inlet 20B, respectively.
As shown in FIGS. 1 and 5, a first exhaust port 22 </ b> A for discharging the air inside the housing 12 to the outside of the housing 12 is provided at a location near the left side surface 12 </ b> E of the rear surface 12 </ b> B. .
Further, a second exhaust port 22B for discharging the air inside the housing 12 to the outside of the housing 12 is provided at a location near the rear surface 12B of the left side surface 12E.
In the present embodiment, the rear surface 12B and the left side surface 12E correspond to a first side surface and a second side surface perpendicular to each other in the claims.

As shown in FIG. 6, the video projection unit 26 generates an image projection light beam using the light from the light source device 24, emits it from the opening 14, and projects an image on the screen 2.
The video projection unit 26 includes an illumination optical unit 32, a separation unit 34, an image modulation unit 36, an image synthesis unit 38, and a projection optical system 40.
The illumination optical unit 32 cuts a part of the light emitted from the light source device 24 and makes the illuminance of the light uniform and guides it to the separation unit 34.
In the present embodiment, the illumination optical unit 32 includes an ultraviolet ray and an infrared cut filter 32A for cutting ultraviolet rays and infrared rays, two fly-eye lenses 32B and 32C for equalizing the illuminance of light, a polarization conversion element 32D, and a condenser. The lens 32E is included.
The separation unit 34, the image modulation unit 36, the image synthesis unit 38, and the projection optical system 40 are configured by cutting the ultraviolet and infrared rays contained in the light emitted from the light source device 24 by the ultraviolet and infrared cut filter 32A. Various optical components are prevented from being heated and deteriorated.

The separation unit 34 separates light (white light) with uniform illuminance guided from the illumination optical unit 32 into light of three colors of red (R), green (G), and blue (B). .
The separation unit 34 includes, for example, a plurality of dichroic mirrors.
More specifically, in the present embodiment, the separation unit 34 includes first and second dichroic mirrors 3402 and 3404, and first to third mirrors 3406, 3408, and 3410.
The first dichroic mirror 3402 is configured to transmit red (R) and green (G) light and reflect blue (B) light out of the light guided from the illumination optical unit 32. ing.
The second dichroic mirror 3404 transmits red (R) light out of red (R) and green (G) light transmitted through the first dichroic mirror 3402, and transmits green (G) light. It is configured to reflect.
Accordingly, the light guided from the illumination optical unit 32 to the first dichroic mirror 3402 is 2 (blue (B) light, red (R) and green (G) light) by the first dichroic mirror 3402. Separated into two lights.
The blue (B) light separated by the first dichroic mirror 3402 is reflected by the first mirror 3406.
Of the red (R) and green (G) lights separated by the first dichroic mirror 3402, the green (G) light reaches the second dichroic mirror 3404.
Of the red (R) and green (G) lights separated by the first dichroic mirror 3402, the red (R) light passes through the second dichroic mirror 3404 and passes through the second mirror 3408 to the third light. And is reflected by the third mirror 3410.
The red (R), green (G), and blue (B) light thus separated by the separation unit 34 is emitted from the separation unit 34 toward the image modulation unit 36, respectively.
Note that the separation unit 34 only needs to have a function of separating light (white light) guided from the illumination optical unit 32 into light of three colors of red (R), green (G), and blue (B). As a matter of course, various conventionally known configurations can be adopted as the separation unit 34.

The image modulation unit 36 modulates the three lights of red (R), green (G), and blue (B) guided from the separation unit 34 based on image information, respectively, and supplies the modulated light to the image composition unit 38. .
The image modulation unit 36 includes first to third image modulation elements 36R, 36G, and 36B corresponding to the three lights of red (R), green (G), and blue (B).
In the present embodiment, the first to third image modulation elements 36R, 36G, and 36B are configured by a transmissive liquid crystal display device (liquid crystal light valve).
The liquid crystal display device includes a liquid crystal display device body having two transparent substrates for sealing a liquid crystal layer, and a polarizing plate incorporated in the liquid crystal display device body.
The first to third image modulation elements 36R, 36G, and 36B have a display surface on which an image is displayed.
The first to third image modulation elements 36R, 36G, and 36B are supplied with video signals (drive signals) corresponding to image information of three colors of red, green, and blue supplied from a control unit (not shown). To display the image on the display screen.
The red (R) light emitted from the separation unit 34 to the image modulation unit 36 is irradiated on the first image modulation element 36R and transmitted through the first image modulation element 36R to be modulated based on the image information. Then, it is guided to the image composition unit 38.
The green (G) light emitted from the separation unit 34 to the image modulation unit 36 is irradiated on the second image modulation element 36G and transmitted through the second image modulation element 36G, thereby modulating based on the image information. Then, it is guided to the image composition unit 38.
The blue (B) light emitted from the separation unit 34 to the image modulation unit 36 is irradiated on the third image modulation element 36B and transmitted through the third image modulation element 36B, thereby modulating based on the image information. Then, it is guided to the image composition unit 38.
The first to third image modulation elements 36R, 36G, and 36B may be reflective liquid crystal display devices as well as transmissive liquid crystal display devices, and various conventionally known image display devices may be used. Can do. The image display device is not limited to the one using the liquid crystal display device, and various conventionally known types can be adopted.

The image synthesis unit 38 generates one image projection light by synthesizing the three lights of red (R), green (G), and blue (B) modulated by the image modulation unit 36, and the image projection light Is guided to the projection optical system 40.
In the present embodiment, the image composition unit 38 includes a cross prism 38A.
The cross prism 38A has three incident surfaces 3802, 3804, 3806 orthogonal to each other on which light from the first to third image modulation elements 36R, 36G, 36B is incident.
Further, the cross prism 38A includes an exit surface 3808 that emits image projection light generated by combining three lights of red (R), green (G), and blue (B).
The image combining unit 38 may be any unit that generates one image projection light by combining three lights of red (R), green (G), and blue (B), and is limited to the cross prism 38A. Instead, various conventionally known optical elements can be used.

  The projection optical system 40 receives the image projection light guided from the image composition unit 38 and projects it onto the screen 2 and includes a plurality of lenses.

Next, the light source device 24 which is the gist of the present invention will be described.
As shown in FIGS. 1 and 13, the light source device 24 includes a lamp 46, a reflector 48, an air supply port 50, and an air discharge port 52.
The lamp 46 is driven by the power supplied from the power supply unit 30 when the power switch 16G is turned on to generate image projection light. A white light source that emits light having a spectrum in the visible range is used. .
As such a lamp 46, various conventionally known light sources such as a continuous spectrum light source such as a xenon lamp, a high-pressure mercury lamp, and a metal halide lamp can be used.
Since the lamp 46 becomes high temperature as the light emitting operation is performed, it is necessary to cool the lamp 46 by applying cooling air to secure the luminance of the lamp 46 and extend the life of the lamp 46.

The lamp 46 is accommodated in the reflector 48.
The reflector 48 reflects light generated by the lamp 46 toward the image projection unit 26.
The reflector 48 has a reflector body 4802 having a curved shape and an inner surface formed of a reflecting surface.
The front end of the reflector body 4802 has a circular cylindrical shape and is open, and is formed as a front end portion 48A from which light is emitted.
An end portion of the reflector body 4802 located on the opposite side to the front end portion 48A is formed as a rear end portion 48B.
A portion connecting the front end portion 48A and the rear end portion 48B of the reflector main body 4802 is formed as a side portion 48C.
1 and 3, reference numeral 49 denotes a protective transparent glass plate that covers the opening of the front end 48 </ b> A of the reflector body 4802.

The air supply port 50 is for supplying air for cooling the inside of the reflector 48 including the lamp 46 to the inside of the reflector 48.
The air discharge port 52 is for discharging the air after cooling the inside of the reflector 48 including the lamp 46 to the outside of the reflector 48.
The air supply port 50 and the air discharge port 52 are formed at locations separated from each other in the front end portion 48A.

As shown in FIGS. 7 to 9, the axial fan 54 includes an impeller 56, a first fan inlet 58, a second fan inlet 60, a fan outlet 62, and a case 64.
The impeller 56 includes a rotation shaft 56A and a blade 56B attached to the rotation shaft 56A.
The axial fan 54 includes a motor (not shown) that rotationally drives the rotary shaft 56A.
The case 64 has a case main body 64A and a cover member 64B.
The case main body 64A includes a plate portion 6402 in which the first fan suction port 58 is opened in a circular shape, and a cylindrical portion 6404 that stands up from the periphery of the opening and partitions a cylindrical space in which the impeller 56 is accommodated. .
The fan discharge port 62 is formed by a circular edge located opposite to the plate portion 6402 of the cylindrical portion 6404.
The tube portion 6404 is formed with an air circulation portion 66 that communicates the inside and the outside of the tube portion 6404 over the entire circumference.
As shown in FIG. 8, the cover member 64 </ b> B has a rectangular main body plate portion 6410 and a bent plate portion 6412 that is bent from an end portion of the main body plate portion 6410.
As shown in FIGS. 1 to 3 and 9, the main body plate portion 6410 is attached to the upper surface 12 </ b> C and covers the upper portion of the cylindrical portion 6404, and the bent plate portion 6412 covers the left side portion of the cylindrical portion 6404. Yes.
In addition, the lower part of the cylinder part 6404 is covered with the lower surface 12D.
Therefore, as shown in FIG. 1, the air circulation portion 66 is exposed on the right side portion of the cylindrical portion 6404, and the exposed air circulation portion 66 constitutes the second fan inlet 60.
That is, the second fan suction port 60 is configured by a part of the air circulation portion 66 in the circumferential direction of the cylindrical portion 6404 exposed from the cover member 64B.
As shown in FIG. 1, when the impeller 56 rotates, air is sucked into the inside of the cylindrical portion 6404 from the first fan suction port 58 and the second fan suction port 60, and is discharged from the fan discharge port 62. The

The cover member 64B may be, for example, that shown in FIGS.
The cover member 64B shown in FIGS. 10 and 11 has a cylindrical shape.
The cover member 64B is attached to the outer periphery of the cylindrical part 6404, exposes a part of the air circulation part 66 in the circumferential direction of the cylindrical part 6404, and closes the remaining air circulation part 66.
In this example, the second fan intake port 60 is configured by the air circulation portion 66 exposed from the cover member 64B.
In this example, the position of the second fan suction port 60 can be adjusted by rotating the cover member 64B on the cylindrical portion 6404.
The cover member 64B shown in FIG. 12 is formed integrally with the cylindrical portion 6404 of the case 64, and a plurality of holes and slits are formed in a part of the cover member 64B so that the second fan intake port 60 is formed. Composed.

As shown in FIG. 1, in the axial fan 54, the fan exhaust port 62 is opposed to the first exhaust port 22A, and the second fan intake port 60 is positioned on the opposite side of the second side surface (left side surface 12E). Are arranged to be.
The reflector 48 is arranged as follows.
That is, both sides of the side portion 48C except for the front end portion 48A are opposed to the fan discharge port 62 and the first exhaust port 22A between the fan discharge port 62 and the first exhaust port 22A inside the housing 12. Yes.
Further, the rear end 48B is opposed to the second exhaust port 22B.
Further, the air discharge port 52 is disposed in the vicinity of the second fan intake port 60.

The first cooling air supply unit 70 includes a first supply path 70A and a first exhaust path 70B.
The first supply path 70 </ b> A sucks air outside the housing 12 into the housing 12 and supplies the air into the reflector 48.
In the present embodiment, the air sucked from the first suction port 20A by the fan 42 is supplied to the air supply port 50 of the reflector 48 through the duct 74. Therefore, the first supply path 70A The suction port 20A and the duct 74 are configured.
The first exhaust passage 70 </ b> B discharges air after cooling the inside of the reflector 48 including the lamp 46 to the outside of the housing.
In the present embodiment, the first exhaust path 70B has a first exhaust path 76A and a second exhaust path 76B.
In the first exhaust path 76A, the air after cooling the inside of the reflector 48 including the lamp 46 is discharged from the air discharge port 52 to the outside of the reflector 48 and passes through the internal space of the housing 12 to suck the second fan. This is a route to the mouth 60.
In the second exhaust path 76B, the air after cooling the lamp 46 following the first exhaust path 76A cools the side portion 48C from the fan exhaust port 62, and then the first exhaust port 22A and the second exhaust port. It has a path that is discharged from 22B to the outside of the housing 12.

The second cooling air supply unit 72 has a second supply path 72A and a second exhaust path 72B.
The second supply path 72 </ b> A sucks air outside the housing 12 from the second suction port 20 </ b> B by the fan 44 and cools portions other than the light source device 24. Here, the part other than the light source device 24 is, for example, the power supply unit 30.
In the power supply unit 30, the cooling air passes between the plurality of printed circuit boards 3002 as described above.
The second exhaust path 72 </ b> B discharges the air after cooling the portion other than the light source device 24 to the outside of the housing 12.
The downstream end of the second supply path 72 </ b> A communicates with the first fan suction port 58 through the internal space of the housing 12.
The second exhaust path 72B is configured by the second exhaust path 76B, in other words, the second exhaust path 76B is shared with the first exhaust path 70B.
That is, the second exhaust path 72B (second exhaust path 76B) sucks the air after cooling portions other than the light source device 24 into the case 64 from the first fan suction port 58, and cools the lamp 46. Combine with later air. Then, after the side portion 48C is cooled, it is discharged to the outside of the housing 12 through the first exhaust port 22A and the second exhaust port 22B.

According to the present embodiment, the heated air after cooling the inside of the lamp 46 and the reflector 48, which tends to stagnate in the internal space of the housing 12 between the power supply unit 30 and the reflector 48, is stored in the second space. The air is efficiently sucked into the axial fan 54 from the fan suction port 60. Then, the air is discharged from the first exhaust path 70 </ b> B to the outside of the housing 12.
Therefore, it is advantageous for efficiently cooling the light source device 24 including the lamp 46.

Further, it is advantageous for making the projector device 10 compact while efficiently cooling the light source device 24.
This will be described in detail with reference to FIGS.
FIG. 13 shows a schematic plan view of the light source device 24 and the axial flow fan 54 of the present invention.
FIG. 14 shows a comparative example in which the axial fan 55 having only the first fan inlet 58 and the fan outlet 62 is provided without the second fan inlet 60 of the present invention.
In the comparative example, in order to guide the warmed air after cooling the inside of the lamp 46 and the reflector 48 to the first fan intake port 58, it is between the side surface 30 </ b> A of the power supply unit 30 and the first fan intake port 58. The gap S1 must be secured.
That is, the axial fan 55 must be disposed away from the side surface 30A of the power supply unit 30 with the gap S1.
On the other hand, in the present invention, since the second fan intake port 60 is provided on the side of the axial fan 54, the heated air after cooling the inside of the lamp 46 and the reflector 48 is transferred to the axial fan 54. Inhaled from the side.
Therefore, the axial fan can be disposed close to the side surface 30A of the power supply unit 30, and there is no need to secure the gap S1.
Therefore, it is advantageous for making the projector device 10 compact.

  DESCRIPTION OF SYMBOLS 10 ... Projector device, 12 ... Housing, 24 ... Light source device, 26 ... Video projection part, 46 ... Lamp, 48 ... Reflector, 50 ... Air supply port, 52 ... Air discharge port, 54 …… Axial fan, 56 …… Impeller, 58 …… First fan inlet, 60 …… Second fan inlet, 62 …… Fan outlet.

Claims (6)

A housing,
A lamp that generates light, a reflector that houses the lamp and reflects light generated by the lamp, and an air supply port that supplies air for cooling the interior of the reflector including the lamp to the interior of the reflector A light source device having an air discharge port for discharging air after cooling the inside of the reflector including the lamp to the outside of the reflector;
A video projection unit that generates and emits an image projection light beam using light of the light source device and projects an image on a screen;
An impeller, a case surrounding the outer periphery of the impeller and having both ends in the rotational axis direction of the impeller formed as a first fan inlet and a fan outlet, and a part of the case surrounding the outer periphery of the impeller An axial fan having a second fan inlet formed in
The axial fan is disposed with the second fan inlet positioned in the vicinity of the air outlet.
Projector device. A first supply path that sucks air outside the housing into the housing and supplies the air to the inside of the reflector, and air after cooling the inside of the reflector including the lamp to the outside of the housing A first cooling air supply unit having a first exhaust path for discharging;
In the first exhaust path, the air after cooling the interior of the reflector including the lamp is discharged from the air discharge port to the outside of the reflector and passes through the internal space of the housing to the second fan. Having a first exhaust path leading to the inlet;
The projector device according to claim 1. The reflector has a front end portion from which light is emitted, a rear end portion located on the opposite side of the front end portion, and a side portion connecting the front end portion and the rear end portion,
The air supply port and the air discharge port are formed at locations separated from each other at the front end,
In the axial fan and the reflector, the fan discharge port faces the side portion excluding the front end portion of the reflector, and the air discharge port of the light source device and the second of the axial flow fan Arranged so that the fan inlet is located in the vicinity of each other,
The projector device according to claim 1 or 2. The housing has a first side surface and a second side surface orthogonal to each other,
A first exhaust port is formed at a location on the first side surface near the second side surface;
A second exhaust port is formed at the second side surface near the first side surface;
The axial fan is disposed so that the fan exhaust port faces the first exhaust port and the second fan intake port is located on the opposite side of the second side surface,
The reflector has a front end portion from which light is emitted, a rear end portion located on the opposite side of the front end portion, and a side portion connecting the front end portion and the rear end portion,
The air supply port and the air discharge port are formed at locations separated from each other at the front end,
The reflector is arranged between the fan exhaust port and the first exhaust port inside the casing so that both sides of the side portion excluding the front end face the fan exhaust port and the first exhaust port. And the rear end portion is opposed to the second exhaust port, and the air discharge port is disposed in the vicinity of the second fan intake port,
In the first exhaust path, the air after cooling the lamp following the first exhaust path cools the side portion from the fan exhaust port, and then the first exhaust port and the second exhaust port. Having a second exhaust path leading to the mouth,
The projector device according to claim 2. A second supply path for sucking air outside the housing to cool the portion other than the light source device, and a second exhaust for discharging the air after cooling the portion other than the light source device to the outside of the housing And a second cooling air supply unit having a passage.
The downstream end of the second supply path is communicated with the first fan inlet through the internal space of the housing,
In the second exhaust path, air after cooling a portion other than the light source device is sucked into the case from the first fan inlet, and merged with air after cooling the lamp, The second exhaust path reaching the first exhaust port and the second exhaust port after cooling a part is shared with the first exhaust path,
The projector device according to claim 4. The case has a case body and a cover member,
The case body includes a plate portion in which the first fan suction port is opened, and a cylindrical portion that stands up from the periphery of the opening and partitions a cylindrical space in which the impeller is accommodated.
The cylinder part is formed with an air circulation part that communicates the inside and the outside of the cylinder part over the entire circumference.
The cover member exposes a part of the air circulation part in the circumferential direction of the cylindrical part and covers the remaining air circulation part,
The second fan suction port is configured by a part of the air circulation portion in the circumferential direction of the cylindrical portion exposed from the cover member.
The projector device according to claim 1.

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