JP2004287189A5 - - Google Patents

Claims (15)

A plurality of heat generating components, a heat radiator, and a heat transfer member that thermally connects the plurality of heat generating components and the heat radiator,
The projector according to claim 1, wherein the plurality of heat generating members have a shorter thermal distance on the heat transfer member to reach the heat radiating member in descending order of heat generation.   The projector according to claim 1, wherein the plurality of heat generating components include any one of a light source, a power supply circuit, and a light modulation unit. Each of the plurality of heat generating components is disposed on one side of the radiator,
3. The projector according to claim 1, wherein a surface area of the heat dissipator is increased as it is closer to the plurality of heat generating components. 4. The radiator has a plurality of fins,
The projector according to any one of claims 1 to 3, wherein the plurality of fins are arranged such that gaps between the plurality of fins extend in a vertical direction.   The projector according to any one of claims 1 to 4, wherein a thermal emissivity of the radiator is 0.5 or more. A housing that covers the plurality of heat generating members;
The projector according to claim 1, wherein the plurality of heat generating members and the housing are thermally connected. The housing has a plurality of side surfaces arranged in the horizontal direction and an upper bottom surface arranged in the vertical direction,
The projector according to claim 6, wherein the total surface area of the upper bottom surface exceeds twice the total surface area of the plurality of side surfaces.   The projector according to claim 6 or 7, wherein a heat absorption rate of an inner surface of the casing is 0.5 or more.   The projector according to claim 6, wherein a thermal emissivity of an outer surface of the casing is 0.5 or more.   The projector according to any one of claims 6 to 9, wherein the casing is provided with an intake hole and an exhaust hole disposed above the intake hole. .   The projector according to claim 10, wherein the exhaust hole is provided on an upper surface of the casing.   The projector according to claim 10 or 11, wherein an opening area of the exhaust hole is larger than an opening area of the intake hole.   The projector according to any one of claims 10 to 12, wherein the plurality of heat generating components are arranged between the intake hole and the exhaust hole with respect to a vertical direction.   The projector according to claim 10, wherein the intake hole and the exhaust hole have a bent flow path. A heat generating component, a heat dissipating member, and a heat transfer member that thermally connects the heat generating component and the heat dissipating member,
The projector is characterized in that a surface area of the heat dissipator is increased as it is closer to the heat generating component.