Projection system and projector base

Abstract

To provide a projection system and a projector base that can suppress deterioration in the cooling efficiency of a projector.SOLUTION: A projection system comprises a projector, a base on which the projector is placed, and wheels attached to the base. The projector includes: a housing; a heat-generating portion that is accommodated in the housing and generates heat when driven; and an exhaust portion that is provided in the housing and exhausts hot air inside the housing. The base includes: a wall portion; a placing portion located in a space partitioned by the wall portion; and an air blowing portion located in the space partitioned by the wall portion. The projector is arranged in an upper space above the placing portion in the space partitioned by the wall portion, the air blowing portion is arranged in a lower space below the placing portion in the space partitioned by the wall portion, and at least one of the placing portion and the wall portion is provided with a communication port through which air is sent from the upper space to the lower space by suction of the air blowing portion.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a projection system and a projector base. [Background technology]

[0002] Patent Document 1 discloses a projector rack and projector system that can optimize the convenience of the projector by eliminating the need for wiring work when moving the projector to a location where it will be used. The projector rack in Patent Document 1 is configured to house a projector and be movable. This projector rack includes a housing section that houses the projector and has an opening that allows the projected light from the housed projector to be projected to the outside, and a battery that supplies power to the projector housed in the housing section. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-98644 Summary of the Invention [Problem to be solved by the invention]

[0004] Some projectors mounted on a projector rack such as that disclosed in Patent Document 1 are provided with an exhaust unit that cools the projector by emitting heat generated when the projector is driven. However, when such a projector is placed on a projector rack, there is a risk that the cooling efficiency of the projector will decrease if certain parts of the projector rack or other devices are positioned opposite the exhaust section. [Means for solving the problem]

[0005] The projection system of the present disclosure comprises a projector, a base on which the projector is placed, and wheels attached to the base, wherein the projector comprises a housing, a heat generating section housed in the housing and generating heat as the projector is driven, and an exhaust section provided in the housing for discharging hot air from inside the housing, wherein the base comprises a wall section, a mounting section located in a space partitioned by the wall section, and an air blowing section located in the space partitioned by the wall section, wherein the projector is disposed in an upper space above the mounting section within the space partitioned by the wall section, and the air blowing section is disposed in a lower space below the mounting section within the space partitioned by the wall section, and a communication port is provided in at least one of the mounting section and the wall section to send air from the upper space to the lower space by suction from the air blowing section.

[0006] The projector base disclosed herein is a projector base capable of mounting a projector having a housing, a heat-generating section housed in the housing that generates heat as the housing operates, and an exhaust section provided in the housing that exhausts hot air from inside the housing, and includes a wall section, a mounting section located in a space partitioned by the wall section, and a blower section located in the space partitioned by the wall section, and is formed so that the projector can be placed in an upper space above the mounting section within the space partitioned by the wall section, and the blower section is located in a lower space below the mounting section within the space partitioned by the wall section, and a communication port is provided in at least one of the mounting section and the wall section to send air from the upper space to the lower space by suction from the blower section.

[0007] The projector base of the present disclosure is a projector base capable of mounting a projector having a housing, a heat generating section housed in the housing that generates heat as the housing operates, and an exhaust section provided in the housing that exhausts hot air from inside the housing, and comprises a mounting section capable of mounting multiple projectors, and an air blowing section located below the mounting section, and the mounting section is provided with a communication port that sends air blown from the air blowing section into spaces located between each of the multiple projectors, and the air above the mounting section moves below the mounting section through the communication port by suction from the air blowing section.

[0008] The projector base of the present disclosure is a projector base capable of mounting a projector having a housing, a heat generating section housed in the housing that generates heat as the housing is operated, and an exhaust section provided in the housing that exhausts hot air from inside the housing, and the projector base comprises a mounting section capable of mounting a plurality of the projectors, and an air blowing section located below the mounting section, the mounting section having partition walls located between each of the plurality of projectors, the partition wall having a communication opening at a position facing at least one of the plurality of projectors, and the air above the mounting section passing through the communication opening moves below the mounting section by suction from the air blowing section. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view of a projection system according to a first embodiment of the present disclosure. [Figure 2] FIG. 1 is a block diagram showing the configuration of a projector. [Figure 3] 1. FIG. 1 is a cross-sectional view taken along plane III of FIG. [Figure 4] FIG. 10 is a cross-sectional view of a projection system according to a first modified example. [Figure 5] FIG. 10 is a cross-sectional view of a projection system according to a second modified example. [Figure 6] FIG. 10 is a cross-sectional view of a projection system according to a third modified example. [Figure 7] FIG. 10 is a perspective view of a projection system according to a second embodiment. [Figure 8] 7A is a cross-sectional view taken along plane VII of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] Each embodiment will be described below with reference to Figures 1 to 4. In each embodiment, the surface of the base 10, 110 where the projection opening 15 is provided is referred to as the front surface, and the direction that the front surface faces is referred to as the forward direction. The symbol FR shown in each figure indicates the front of the base 10, 110 in the installed state, the symbol UP indicates the upper side of the base 10, 110, and the symbol LH indicates the left side of the base 10, 110. In the installed state of the base 10, 110, the up-down direction coincides with the vertical direction, and the front-rear direction and the left-right direction coincide with the horizontal direction. In the following description, each direction is along the direction of these bases 10 and 110.

[0011] <Embodiment 1> Fig. 1 is a perspective view of a projection system 1 according to a first embodiment of the present disclosure. For ease of explanation, in Fig. 1, a partition wall 34 is indicated by a two-dot chain line. As shown in FIG. 1, the projection system 1 includes a projector 2 and a base 10 on which the projector 2 is placed.

[0012] FIG. 2 is a block diagram showing the configuration of the projector 2. 1, the projector 2 includes a housing 20. The housing 20 is formed in a rectangular parallelepiped shape. Note that the housing 20 may be formed in any shape, such as having some surfaces formed in a curved shape. As shown in FIG. 2, the housing 20 accommodates a light source 22 that emits light, a light modulation unit 24, a projection lens 26, a cooling fan 28, and a control unit 29.

[0013] The light source 22 may be any of various lamps or light emitting elements, such as a metal halide lamp, a high-pressure mercury lamp, a light emitting diode (LED), a semiconductor laser (LD), or an organic electroluminescence (OLED). The light modulation unit 24 modulates the light emitted from the light source 22 in accordance with the image information to be displayed. The light modulation unit 24 may be any of various light modulation devices, such as a liquid crystal type light modulation device or a micromirror type light modulation device.

[0014] The projection lens 26 is a lens that passes the light modulated by the light modulation unit 24 and projects the light as a projection image onto a projection target such as a screen. The projection lens 26 is disposed on the front surface of the housing 20. The projection lens 26 may be, for example, a combination of a single or multiple optical lenses and optical mirrors. The projection lens 26 and the light modulation section 24 may be provided in another housing connected to the housing 20 by an arm or the like.

[0015] Fig. 3 is a cross-sectional view taken along plane III in Fig. 1. Plane III is a plane that is perpendicular to the left-right direction and passes through approximately the center of the base 10 in the left-right direction. The cooling fan 28 is a blower that blows air inside the housing 20 to cool the light source 22, the light modulation unit 24, the projection lens 26, the control unit 29, and other components housed inside the housing 20. 1 and 3, the housing 20 has an intake opening 21 provided on the front surface of the housing 20 and an exhaust opening 23 provided on the rear surface of the housing 20. The cooling fan 28 is disposed inside the housing 20 adjacent to the exhaust opening 23. The cooling fan 28 draws air from outside the housing 20 into the housing through the intake opening 21, cools each part of the housing 20, and then expels the air to the outside of the housing 20 through the exhaust opening 23. The cooling fan 28 may be disposed adjacent to the intake opening 21. Furthermore, for example, a plurality of cooling fans 28 may be provided adjacent to each of the intake opening 21 and the exhaust opening 23.

[0016] The cooling fan 28 and the exhaust opening 23 are an example of an "exhaust section." The intake opening 21 is an example of an "intake section." The light source 22, the light modulation unit 24, the projection lens 26, the cooling fan 28, and the control unit 29 are examples of a "heat generating unit." However, the heat generating unit is not limited to these, and may be other members or various devices that generate heat inside the housing 20, such as a lens driving unit that drives the projection lens 26.

[0017] 2, the control unit 29 includes a processor such as a CPU (Central Processing Unit) or an MPC (Micro Processing Unit). The control unit 29 includes a RAM (Random Access Memory), which is a volatile storage device that temporarily stores various types of data, and a ROM (Read Only Memory), which is a non-volatile storage device that stores programs, etc. The control unit 29 controls the operation of each part of the projector 2 by operating the processor in accordance with the program stored in the ROM, and the operation of the projector 2 is controlled.

[0018] 1, the base 10 has a polyhedral housing shape with an internal space S1 provided therein. The base 10 has an upper front wall 12 that forms the upper part of the front surface, a lower front wall 14 that forms the lower part of the front surface, side walls 16 that form the left and right side surfaces, a rear wall 18 that forms the rear surface, an upper surface wall 11 that forms the upper surface, and a lower surface wall 13 that forms the lower surface. A projection opening 15, which is a through-hole that penetrates the upper front wall 12 in the thickness direction, is provided in the upper front wall 12. Various transparent members may be fitted into the projection opening 15.

[0019] The base 10 is an example of a "projector base." Each of the upper front wall 12, the lower front wall 14, the side wall 16, the rear wall 18, the top wall 11, and the bottom wall 13 is formed in a plate shape and is an example of a "wall portion."

[0020] A mounting plate 30 is provided inside the base 10. The mounting plate 30 is a plate-shaped member that is perpendicular to the vertical direction. The mounting plate 30 divides the internal space S1 of the base 10 into an upper space S2 located above the mounting plate 30 and a lower space S3 located below the mounting plate 30.

[0021] The base 10 has an openable and closable top wall 11. By opening the open top wall 11, the base 10 can place the projector 2 on the top surface of the mounting plate 30 and store it in the upper space S2. The projector 2 is placed on the mounting plate 30 so that the projection lens 26 is exposed to the outside of the base 10 through the projection opening 15. Note that the base 10 may have an openable and closable door at any position, not just the top wall 11, as long as the projector 2 can be housed in the upper space S2. The mounting plate 30 is an example of a "mounting portion."

[0022] When the projector 2 is accommodated in the upper space S2, the rear surface of the housing 20 and the exhaust opening 23 are disposed opposite the opposing portion 17 of the rear wall 18, which is located in the upper space S2. The rear surface of the housing 20 and the exhaust opening 23 are disposed at a predetermined distance from the opposing portion 17.

[0023] 1 and 3, the mounting plate 30 is provided with a communication opening 31, which is a through-hole that penetrates the plate in the plate thickness direction. The communication opening 31 is formed in the shape of a substantially rectangular elongated hole extending in the left-right direction when viewed vertically downward in a plan view. Note that the communication opening 31 may be formed in any shape when viewed in a plan view. The communication port 31 connects the upper space S2 and the lower space S3. When the projector 2 is housed in the upper space S2, the communication port 31 is disposed between the exhaust opening 23 and the facing portion 17 when viewed vertically downward in a plan view.

[0024] The lower wall 13 is provided with an exhaust port 35, which is a through-hole that penetrates in the plate thickness direction. When viewed vertically downward in a plan view, the exhaust port 35 is formed in the shape of a substantially rectangular elongated hole that extends in the front-to-rear direction. Note that the exhaust port 35 may be formed in any shape when viewed in a plan view.

[0025] The lower space S3 houses a fan 40. The fan 40 is a so-called sirocco fan. The fan 40 includes a fan case 42, which is a housing that houses an impeller. The fan case 42 is provided with an intake opening 41, which is a through-hole, and a cylindrical duct portion 44 that extends a predetermined length. The tip of the duct portion 44 is provided with an air outlet opening 43, which is also a through-hole. When the impeller of the fan 40 rotates, air is drawn into the interior of the fan case 42 through the intake opening 41, and the air is sent out to the outside of the fan case 42 through the air outlet opening 43. The fan 40 is disposed so that the air outlet 43 faces the exhaust port 35. Therefore, the air sent out from the fan 40 is sent out to the outside of the base 10 via the exhaust port 35. The fan 40 is an example of a "blower."

[0026] Note that fan 40 is not limited to a sirocco fan, and various types of blowers such as an axial fan may be used. Furthermore, for example, fan 40 may be provided with a connecting portion such as a duct body that connects air outlet 43 and exhaust port 35.

[0027] The top wall 11 is provided with an air intake 19, which is a through-hole that penetrates in the plate thickness direction. When viewed vertically downward in a plan view, the air intake 19 is formed in the shape of a substantially rectangular elongated hole that extends in the left-right direction. Note that the air intake 19 may be formed in any shape when viewed in a plan view. The air intake 19 connects the upper space S2 to the outside of the base 10. When the projector 2 is housed in the upper space S2, the intake port 19 is disposed between the exhaust opening 23 and the opposing portion 17 when viewed vertically downward in a plan view. Intake opening 41, communication port 31, and intake port 19 are arranged so that at least a portion of each overlaps with one another when viewed vertically downward in a plan view.

[0028] As a result, the hot air from the projector 2 is sent out from the fan 40 and discharged onto the air flow path passing through the intake opening 41 , the communication port 31 and the intake port 19 . Furthermore, the intake opening 41, the communication port 31, and the intake port 19 are positioned closer to one another. That is, the air sucked in by the fan 40 and discharged to the outside of the base 10 flows through a shorter flow path. Therefore, the pressure loss of the air sent out from the fan 40 is reduced in the base 10. Then, in the base 10, the hot air of the projector 2 is exhausted by the air, so that a decrease in the cooling efficiency of the projector 2 can be suppressed.

[0029] The hot air from the projector 2, which is sent downward together with the air sent out by the fan 40, is sent by the exhaust port 35 to the installation surface of the space in which the projection system 1 is installed. This prevents the hot air from being directed toward users around the projection system 1. Therefore, the projection system 1 can reduce the impact on users of the hot air caused by the operation of the projector 2.

[0030] A partition wall 34, which is a plate-shaped member, is provided in the upper space S2. The partition wall 34 is formed in a substantially rectangular shape in a plan view. The partition wall 34 has a notch 33 formed by cutting out one side. The housing 20 can be fitted into the notch 33.

[0031] As shown in FIG. 3, the partition wall 34 is disposed so that its plane is substantially parallel to the planes of the top wall 11 and the rear wall 18. When the housing 20 is fitted into the notch 33, the partition wall 34 separates the intake opening 21 from the communication opening 31, the exhaust opening 23, and the intake port 19. This prevents the hot air discharged from the exhaust opening 23 from heading toward the intake opening 21, and prevents a decrease in the cooling efficiency of the projector 2.

[0032] A plurality of casters 50 are provided on the bottom wall 13. The casters 50 include rotatable wheels or spheres that come into contact with the installation surface of the base 10. This allows the user to position the base 10 and the projector 2 housed in the base 10 in any desired position. The casters 50 may be omitted.

[0033] Next, the operation of the projection system 1 will be described. In the projection system 1, when the projector 2 is operated while housed in the base 10, the heat generated by the operation is discharged as hot air together with the air outside the housing 20 through the exhaust opening 23 by driving the cooling fan 28. In the projection system 1, when the fan 40 is driven, air is drawn into the upper space S2 through the air intake 19. The air in the upper space S2 is sucked by the fan 40 through the communication port 31 into the lower space S3.

[0034] The hot air discharged from the exhaust opening 23 is sucked into the lower space S3 by the air drawn into the lower space S3 by the fan 40. The hot air sucked into the lower space S3 is exhausted to the outside of the base 10 via the exhaust port 35. The hot air is sent by the rectifying unit toward the installation surface of the space where the projection system 1 is installed.

[0035] In this way, in the projection system 1, the hot air exhausted from the exhaust opening 23 of the projector 2 can be discharged below the base 10. Therefore, in the projection system 1, it is possible to prevent the hot air exhausted from the exhaust opening 23 of the projector 2 from accumulating inside the base 10, and to prevent a decrease in the cooling efficiency of the projector 2.

[0036] Fig. 4 is a longitudinal cross-sectional view of a projection system 1 showing a first modified example of this embodiment. Fig. 4 shows a longitudinal cross-section of the projection system 1 cut along plane III, similar to Fig. 3. In Fig. 4, the same parts as in Fig. 3 are assigned the same reference numerals, and their description will be omitted. Next, a first modified example will be described. In this modification, the intake port 19 is omitted, and the partition wall 34 is provided with a ventilation opening 37, which is a through-hole that penetrates in the thickness direction, instead of the notch 33.

[0037] The partition wall 34 separates the upper space S2 between the communication opening 31 and the rear end of the housing 20. The ventilation opening 37 is located at approximately the same height as the exhaust opening 23 or below it. In this case, the air sucked by the fan 40 flows from, for example, the projection opening 15, through the ventilation opening 37 and the communication port 31, and into the lower space S3. In this manner, in this modified example, the flow path through which the hot air flows is more limited, and the hot air can be more efficiently discharged from the upper space S2.

[0038] Fig. 5 is a longitudinal cross-sectional view of a projection system 1 showing a second modified example of this embodiment. Fig. 5 shows a longitudinal cross-section of the projection system 1 cut along plane III, similar to Fig. 4. In Fig. 5, the same parts as in Fig. 4 are assigned the same reference numerals, and their description will be omitted. Next, a second modified example will be described. In this modified example, a cover part 36 is further provided to the first modified example. The cover part 36 covers the rear end side of the housing 20, i.e., the location where the exhaust opening 23 is provided, and the rear end is connected to the partition wall 34. The cover part 36 has a cover opening 39, which is a through-hole that penetrates in the vertical direction, provided on the upper surface. In the upper space S2, the front end side of the housing 20, that is, the location where the intake opening 21 is provided, is exposed in front of the cover portion .

[0039] In this case, the air sucked by the fan 40 flows from, for example, the projection opening 15 through the ventilation opening 37, the cover opening 39, and the communication port 31 into the lower space S3. In this manner, in this modified example, the flow path through which the hot air flows is more limited, and the hot air can be more efficiently discharged from the upper space S2.

[0040] The partition wall 34 separates the upper space S2 between the communication opening 31 and the rear end of the housing 20. The ventilation opening 37 is located at approximately the same height as the exhaust opening 23 or below it. In this case, the air sucked by the fan 40 flows from, for example, the projection opening 15, through the ventilation opening 37 and the communication port 31, and into the lower space S3. In this manner, in this modified example, the flow path through which the hot air flows is more limited, and the hot air can be more efficiently discharged from the upper space S2.

[0041] In this embodiment, the exhaust opening 23 is not limited to being provided on the rear surface of the housing 20, but may be provided on either of the left and right side surfaces. In this case, the communication opening 31 is provided so as to be located between the exhaust opening 23 and the side wall 16 in a vertical plan view. Also, for example, in the base 10, the partition wall 34 may be omitted.

[0042] <Embodiment 2> FIG. 6 is a perspective view of a projection system 100 according to the second embodiment. In FIG. 6, the same parts as those in FIG. 1 are denoted by the same reference numerals, and the description thereof will be omitted. As shown in FIG. 6, the projection system 100 includes a plurality of projectors 102 and a base 110 on which each of the projectors 102 is placed. A projector 102 of the present disclosure differs from the projector 102 in that an exhaust opening 123 is provided on the side surface located on the left side, instead of on the rear surface.

[0043] The base 110 has a polyhedral housing shape with an internal space S100 provided therein. The base 110 has a front wall 112 that forms the front surface, side walls 116 that form the left and right side surfaces, a rear wall 118 that forms the rear surface, an upper wall 111 that forms the upper surface, and a lower wall 113 that forms the lower surface.

[0044] The base 110 is an example of a "projector base." Each of the front wall 112, the side walls 116, the rear wall 118, the top wall 111, and the bottom wall 113 is formed in a plate shape and is an example of a "wall portion."

[0045] The top wall 111 is provided with a communication opening 131, which is a through-hole that penetrates in the plate thickness direction. When viewed vertically downward in a plan view, the communication opening 131 is located approximately in the center of the top wall 111 in the left-right direction and is formed in the shape of a substantially rectangular elongated hole that extends in the front-to-rear direction. Note that the communication opening 131 may be formed in any shape when viewed in a plan view. The communication port 131 connects the internal space S100 to the outside of the base 110.

[0046] Two projectors 102 can be placed on the upper surface of the upper wall 111. The projectors 102 are arranged side by side in the left-right direction with a communication opening 131 between them. Furthermore, of the two projectors 102, the exhaust opening 123 of at least one is arranged adjacent to the communication opening 131. In the case of this embodiment, the exhaust opening 123 of the projector 102 located on the right is adjacent to the communication opening 131.

[0047] Therefore, in the projection system 100, the side surface located on the right side of the housing 20 of the projector 102 located on the left is an example of an "opposing part" that faces the exhaust opening 123 of the projector 102 located on the right. Each of the projectors 102 is disposed on the upper surface of the upper wall 111 so that the projection lens 26 faces the front of the base 110 . The top wall 111 is an example of a "placement portion."

[0048] The internal space S100 accommodates the fan 40. The fan 40 is disposed such that the air outlet 43 and the communication opening 131 at least partially overlap with each other when viewed vertically downward in a plan view.

[0049] Next, the operation of the projection system 100 will be described. In the projection system 100, when each of the projectors 102 is driven while housed in the base 110, the heat generated by the drive is exhausted as hot air together with the air to the outside of the housing 20 via the exhaust opening 123 by the drive of the cooling fan 28. The hot air exhausted from the projector 102 located on the right side is exhausted between the pair of projectors 102.

[0050] In the projection system 100, when the fan 40 is driven, air is sucked into the internal space S100 via the communication port 131.

[0051] The hot air discharged from the exhaust opening 123 of the projector 102 located on the right side is sucked into the internal space S100 by the air drawn in by the fan 40. The hot air is discharged to the outside of the base 110 via the exhaust port 35.

[0052] In this way, in the projection system 100, the hot air exhausted from the exhaust opening 123 of the projector 102 located on the right can be discharged below the base 110. Therefore, in the projection system 100, it is possible to prevent the hot air exhausted from the exhaust opening 23 of the projector 102 from accumulating between the multiple projectors 102, and to prevent a decrease in the cooling efficiency of the projectors 102.

[0053] It should be noted that three or more projectors 102 may be mounted on the base 110. In this case, two or more communication openings 131 are provided in the upper wall 111, and the projectors 102 are arranged side by side in the left-right direction with the communication openings 131 sandwiched between them.

[0054] Fig. 7 is a perspective view of a projection system 100 showing a modified example of this embodiment. In Fig. 7, the same components as those in Fig. 6 are denoted by the same reference numerals, and the description thereof will be omitted. FIG. 8 is a longitudinal section on plane VII of FIG. Next, a modified example will be described. In this modification, a duct body 160 is provided to cover the communication opening 131. As shown in Figures 7 and 8, the duct body 160 is hollow and has a flat plate shape that is perpendicular to the left-right direction. The duct body 160 has opposing surfaces 162 that face each side surface of the projector 102, and opposing surface openings 161 are provided on each of the opposing surfaces 162.

[0055] In the projection system 100, when the fan 40 is driven, air is sucked into the internal space S100 via the opposing surface opening 161 and the communication port 131.

[0056] The hot air discharged from the exhaust opening 123 of the projector 102 located on the right side is sucked into the internal space S100 by the air drawn in by the fan 40. The hot air is discharged to the outside of the base 110 via the exhaust port 35.

[0057] Each of the above-described embodiments is an example of one aspect of the present disclosure, and any modifications and applications are possible without departing from the spirit of the present disclosure.

[0058] In the above-described embodiment, the bases 10 and 110 are formed so that each surface is a flat surface, but this is not limiting, and at least one surface may be formed to have a curved surface.

[0059] Furthermore, for example, as long as the projector 2 and the projector 102 can be placed on the bases 10 and 110, at least one surface may be omitted.

[0060] Furthermore, for example, in the projection systems 1 and 100, the casters 50 may be provided separately from the bases 10 and 110. For example, in the projection systems 1 and 100, the bases 10 and 110 may be placed on a dolly on which the casters 50 are provided.

[0061] Unless otherwise specified, the horizontal, vertical, and other directions and shapes in each of the above-described embodiments include a so-called equivalent range that provides the same effects as those directions and shapes.

[0062] Summary of this disclosure A summary of this disclosure is provided below.

[0063] (Appendix 1) a projection system comprising: a projector; a base on which the projector is placed; and wheels attached to the base; the projector comprising: a housing; a heat generating section housed in the housing that generates heat as the projector is driven; and an exhaust section provided in the housing that exhausts hot air from inside the housing; the base comprising: a wall section; a mounting section located in a space partitioned by the wall section; and a blower section located in the space partitioned by the wall section; the projector is disposed in an upper space above the mounting section within the space partitioned by the wall section; the blower section is disposed in a lower space below the mounting section within the space partitioned by the wall section; and a communication port is provided in at least one of the mounting section and the wall section that sends air from the upper space to the lower space by suction from the blower section. This allows air to be drawn from the upper space to the lower space through the communication opening, thereby removing stagnant hot air and preventing a decrease in cooling efficiency.

[0064] (Appendix 2) The projection system described in Appendix 1, wherein the base has an opposing portion that is a portion of the wall portion that faces the exhaust portion of the projector, and the communication port is located in the space between the exhaust portion and the opposing portion when the projection system is viewed in a plan view vertically downward. This provides a communication port in the space between the exhaust portion and the opposing portion, making it easier to draw hot air into the space below.

[0065] (Appendix 3) The projection system described in claim 1 or supplementary note 2, wherein the base has an opposing portion that is a portion of the wall portion that faces the exhaust portion of the projector, and the communication port is provided in the opposing portion when the projection system is viewed in a plan view vertically downward. This allows a communication port to be formed in the opposing portion, thereby improving efficiency.

[0066] (Appendix 4) The projection system described in any one of Appendix 1 to Appendix 3, wherein the base includes an opposing portion that is a portion of the wall portion that faces the exhaust portion of the projector, and an air vent is provided in the wall portion above the projector, and the air vent and the communication port are located between the exhaust portion and the opposing portion when the projection system is viewed in a plan view vertically downward. This prevents obstacles from being placed between the ventilation opening and the communication opening, improving air fluidity, and the air flow path from the ventilation opening to the communication opening passes through the space between the exhaust section and the opposing section, improving the function of sending hot air trapped in the space out of the communication opening into the space below.

[0067] (Appendix 5) 5. The projection system according to claim 4, wherein at least a portion of the vent hole and at least a portion of the communication hole overlap when the projection system is viewed vertically downward in a plan view. This shortens the distance from the ventilation opening to the communication opening, and when the communication opening is in a decompressed state by the blower, the flow of air reaching the communication opening from the ventilation opening can be strengthened compared with the flow of air entering from other parts.

[0068] (Appendix 6) The projection system according to any one of Supplementary Note 1 to Supplementary Note 5, wherein the wall portion is provided with an exhaust port that is located in the lower space and opens vertically downward. This allows the exhaust to be directed toward the floor, reducing the likelihood of the exhaust being directed toward users around the projection system.

[0069] (Appendix 7) 7. The projection system according to claim 6, wherein the blower overlaps at least a portion of the exhaust port when the projection system is viewed vertically downward in a plan view. This allows at least a portion of the blower and the exhaust port to overlap, allowing the hot air drawn from the upper space to the lower space to be efficiently discharged to the outside.

[0070] (Appendix 8) The projection system according to any one of appendices 1 to 7, wherein the housing is provided with an intake section that sends outside air into the housing, and the upper space is provided with a partition wall that separates the intake section, the exhaust section, and the communication port. This makes it possible to prevent hot air that has accumulated in the space between the exhaust section and the opposing section from being sucked into the inside of the projector through the intake section.

[0071] (Appendix 9) a projector base capable of mounting a projector having a housing, a heat-generating section housed in the housing and generating heat as the housing is operated, and an exhaust section provided in the housing and discharging hot air from inside the housing; the projector base comprising: a wall section; a mounting section located in a space partitioned by the wall section; and a blower section located in the space partitioned by the wall section; the projector base is formed so that the projector can be placed in an upper space above the mounting section within the space partitioned by the wall section; the blower section is located in a lower space below the mounting section within the space partitioned by the wall section; and a communication port is provided in at least one of the mounting section and the wall section to send air from the upper space to the lower space by suction from the blower section. This allows air to be drawn from the upper space to the lower space through the communication opening, thereby removing stagnant hot air and preventing a decrease in cooling efficiency.

[0072] (Appendix 10) 10. The projector base according to claim 9, further comprising an opposing portion that is a portion of the wall portion that faces the exhaust portion of the projector, and the communication port is located in a space between the exhaust portion and the opposing portion when the projector base is viewed in a plan view vertically downward. This provides a communication port at the location where the heat is most likely to build up in the space between the exhaust section and the opposing section, making it easier to draw hot air into the space below.

[0073] (Appendix 11) The projector base according to claim 9 or 10, further comprising an opposing portion that is a portion of the wall portion that faces the exhaust portion of the projector, and the communication port is provided in the opposing portion when the projector base is viewed in a plan view vertically downward. This makes it easier to draw hot air into the lower space, improving efficiency.

[0074] (Appendix 12) 12. The projector base according to claim 9, further comprising: a facing portion that is a portion of the wall portion that faces the exhaust portion of the projector; an air vent is provided in the wall portion above the projector; and the air vent and the communication port are located between the exhaust portion and the facing portion when the projector base is viewed in a plan view vertically downward. This prevents obstacles from being placed between the ventilation opening and the communication opening, improving air fluidity, and the air flow path from the ventilation opening to the communication opening passes through the space between the exhaust section and the opposing section, improving the function of pushing hot air trapped in the space out through the communication opening into the space below.

[0075] (Appendix 13) 13. The projector base according to claim 12, wherein at least a portion of the ventilation hole and at least a portion of the communication hole overlap when the projector base is viewed vertically downward in a plan view. This shortens the distance from the ventilation opening to the communication opening, and when the communication opening is in a decompressed state by the blower, the flow of air reaching the communication opening from the ventilation opening can be made stronger than the flow of air entering from other parts.

[0076] (Appendix 14) The projector base according to any one of Supplementary Note 9 to Supplementary Note 13, wherein the wall portion is provided with an exhaust port that is located in the lower space and opens vertically downward. This means that if the exhaust port is provided downward, the exhaust will be directed toward the floor, which can prevent the exhaust from being directed toward users around the projection system.

[0077] (Appendix 15) 15. The projector base according to claim 14, wherein the air blowing section overlaps with at least a part of the exhaust port when the projector base is viewed vertically downward in a plan view. This allows at least a portion of the air blowing section and the exhaust port to overlap, so that hot air drawn from the upper space to the lower space can be efficiently discharged to the outside.

[0078] (Appendix 16) The projector base according to any one of Appendix 9 to Appendix 15, wherein the housing is provided with an intake section that is provided in the housing and sends outside air into the housing, and the upper space is provided with a partition wall that separates the intake section, the exhaust section, and the communication port. This reduces the risk that hot air remaining in the space between the exhaust section and the opposing section will be sucked into the inside of the projector through the intake section.

[0079] (Appendix 17) A projector base capable of mounting a projector having a housing, a heat-generating section housed in the housing and generating heat as the housing is operated, and an exhaust section provided in the housing and discharging hot air from inside the housing, the projector base comprising: a mounting section capable of mounting a plurality of the projectors; and an air blowing section located below the mounting section, the mounting section having a communication port that sends air blown from the air blowing section into spaces located between each of the plurality of projectors, and the air above the mounting section moves below the mounting section through the communication port by suction from the air blowing section. As a result, when multiple projectors are placed side by side on a stand for projection mapping or the like, if the exhaust section of each projector is positioned in the direction in which the projectors are lined up, the exhaust heat heading toward the adjacent projectors can be exhausted downward through the lower slit.

[0080] (Appendix 18) A projector base capable of mounting a projector having a housing, a heat-generating section housed in the housing and generating heat as the housing is operated, and an exhaust section provided in the housing and discharging hot air from inside the housing, the projector base comprising: a mounting section capable of mounting a plurality of the projectors; and an air blowing section located below the mounting section, wherein the mounting section is provided with partition walls located between each of the plurality of projectors, and the partition wall is provided with a communication opening at a position facing at least one of the plurality of projectors, and the air above the mounting section moves below the mounting section through the communication opening by suction from the air blowing section. As a result, when multiple projectors are placed side by side on a stand for projection mapping or the like, if the exhaust section of each projector is positioned in the direction in which the projectors are lined up, the exhaust heat heading toward the adjacent projectors can be exhausted downward through the lower slit. [Explanation of symbols]

[0081] 1...Projection system, 2...Projector, 10...Base, 11...Top wall, 12...Upper front wall, 13...Bottom wall, 14...Lower front wall, 15...Projection opening, 16...Side wall, 17...Facing portion, 18...Rear wall, 19...Air intake port, 20...Housing, 21...Air intake opening, 22...Light source, 23...Exhaust opening, 24...Light modulation portion, 26...Projection lens, 28...Cooling fan, 29...Control portion, 30...Placement plate, 31...Communication port, 32...Rectification portion, 33...Notch portion, 34...Partition wall, 3 5...exhaust port, 36...cover part, 37...ventilation opening, 40...fan, 41...intake opening, 42...fan case, 43...air outlet opening, 44...duct part, 50...caster, 100...projection system, 102...projector, 110...base, 111...top wall, 112...front wall, 113...bottom wall, 116...side wall, 118...rear wall, 123...exhaust opening, 131...communication port, S1...internal space, S100...internal space, S2...upper space, S3...lower space.

Claims

1. A projector and a base on which the projector is placed; Wheels attached to the base; Equipped with The projector includes: The housing and a heat generating unit that is housed in the housing and generates heat as it is driven; an exhaust section provided in the housing to exhaust hot air from inside the housing; Equipped with The base is The wall portion and a placement portion located in a space partitioned by the wall portion; a blower located in a space partitioned by the wall; Equipped with the projector is disposed in an upper space above the placement section within the space partitioned by the wall section, The blower is disposed in a lower space below the placement section within the space partitioned by the wall section, a communication port is provided in at least one of the mounting portion and the wall portion, through which air is sent from the upper space to the lower space by suction from the blower portion; Projection system.

2. the base includes a facing portion that is a portion of the wall that faces the exhaust portion of the projector, the communication port is located in a space between the exhaust unit and the opposing unit when the projection system is viewed vertically downward in a plan view. The projection system according to claim 1 .

3. the base includes a facing portion that is a portion of the wall that faces the exhaust portion of the projector, the communication port is provided in the opposing portion when the projection system is viewed vertically downward in a plan view.

3. The projection system according to claim 1 or 2.

4. the base includes a facing portion that is a portion of the wall that faces the exhaust portion of the projector, a vent hole is provided in the wall portion above the projector, the vent hole and the communication hole are located between the exhaust part and the opposing part when the projection system is viewed vertically downward in a plan view.

3. The projection system according to claim 1 or 2.

5. When the projection system is viewed vertically downward in a plan view, At least a portion of the vent; At least a part of the communication port; overlap, The projection system according to claim 4 .

6. The wall portion is provided with an exhaust port that is located in the lower space and opens vertically downward.

3. The projection system according to claim 1 or 2.

7. the blower overlaps with at least a portion of the exhaust port when the projection system is viewed vertically downward in a plan view. The projection system according to claim 6 .

8. The housing is provided with an intake section that is provided in the housing and sends outside air into the housing, In the upper space, The intake section; the exhaust portion and the communication port; A partition wall is placed to separate the 3. The projection system according to claim 1 or 2.

9. The housing and a heat generating unit that is housed in the housing and generates heat as it is driven; an exhaust section provided in the housing to exhaust hot air from inside the housing; A projector base on which a projector comprising: The wall portion and a placement portion located in a space partitioned by the wall portion; a blower located in a space partitioned by the wall; Equipped with the projector is configured to be able to be placed in an upper space above the placement section within the space partitioned by the wall section, The blower is disposed in a lower space below the placement section within the space partitioned by the wall section, a communication port is provided in at least one of the mounting portion and the wall portion, through which air is sent from the upper space to the lower space by suction from the blower portion; Projector base.

10. a facing portion that is a portion of the wall portion that faces the exhaust portion of the projector, the communication port is located in a space between the exhaust part and the opposing part when the projector base is viewed vertically downward in a plan view. The projector base according to claim 9 .

11. a facing portion that is a portion of the wall portion that faces the exhaust portion of the projector, the communication opening is provided in the opposing portion when the projector base is viewed vertically downward in a plan view, 11. The projector base according to claim 9 or 10.

12. a facing portion that is a portion of the wall portion that faces the exhaust portion of the projector, a vent hole is provided in the wall portion above the projector, the vent hole and the communication hole are located between the exhaust part and the opposing part when the projector base is viewed vertically downward in a plan view; 11. The projector base according to claim 9 or 10.

13. When the projector base is viewed vertically downward in a plan view, At least a portion of the vent; At least a part of the communication port; overlap, The projector base according to claim 12.

14. The wall portion is provided with an exhaust port that is located in the lower space and opens vertically downward.

11. The projector base according to claim 9 or 10.

15. the air blowing section overlaps with at least a part of the exhaust port when the projector base is viewed vertically downward in a plan view, The projector base according to claim 14.

16. The housing is provided with an intake section that is provided in the housing and sends outside air into the housing, In the upper space, The intake section; the exhaust portion and the communication port; A partition wall is placed to separate the 11. The projector base according to claim 9 or 10.

17. The housing and a heat generating unit that is housed in the housing and generates heat as it is driven; an exhaust section provided in the housing to exhaust hot air from inside the housing; A projector base on which a projector comprising: a mounting section on which a plurality of the projectors can be mounted; a blower located below the placement section; Equipped with the mounting section is provided with a communication port through which air blown from the blowing section is sent into spaces located between the plurality of projectors, the air above the placement section is moved to below the placement section through the communication opening by the suction of the air blowing section; Projector base.

18. The housing and a heat generating unit that is housed in the housing and generates heat as it is driven; an exhaust section provided in the housing to exhaust hot air from inside the housing; A projector base on which a projector comprising: a mounting section on which a plurality of the projectors can be mounted; a blower located below the placement section; Equipped with the mounting section is provided with partition walls positioned between the plurality of projectors, a communication opening is provided in the partition wall at a position facing at least one of the plurality of projectors; the air above the placement section is moved to below the placement section through the communication opening by the suction of the air blowing section; Projector base.

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