Projection device

Abstract

A projection device includes a light source module, an optical engine module, a projection lens, a housing, and at least one first heat dissipating element. The housing comprises a first end and a second end opposite to each other. The at least one first heat dissipating element is disposed in the housing, and each of the at least one first heat dissipating element includes a first plate portion, a second plate portion, and a first fin portion. The first plate portion is connected to the light source module. The second plate portion is connected to the first plate portion. The first fin portion is connected to the second plate portion and includes a plurality of first fins arranged at intervals. These first fins are arranged between the first end and the second end.

What is claimed is: 
     
       1. A projection device, comprising a light source module, an optical engine module, a projection lens, a housing, and at least one first heat dissipating element, wherein:
 the light source module is used configured to emit an illumination beam; 
 the optical engine module is disposed on a transmission path of the illumination beam to receive the illumination beam and convert the illumination beam into an image beam; 
 the projection lens is disposed on a transmission path of the image beam to receive the image beam and project the image beam to an outside of the projection device; 
 the housing is configured to accommodate the light source module, the optical engine module, and the projection lens, the housing comprises a first end and a second end opposite to each other, the image beam is projected along a direction from the first end to the outside of the projection device, and the housing further comprises an inlet adjacent the first end and an outlet adjacent the second end; and 
 the at least one first heat dissipating element is disposed in the housing, each of the at least one first heat dissipating element comprises a first plate portion, a second plate portion, and a first fin portion, the first plate portion is directly connected to the light source module, the second plate portion is not directly connected to any light source module, the second plate portion is connected to the first plate portion and positioned to form a first angle with respect to the first plate portion, the first fin portion is connected to the second plate portion and comprises a plurality of first fins arranged at intervals, and the plurality of first fins is arranged between the first end and the second end; 
 wherein the housing comprises a tubular portion, two ends of the tubular portion are respectively the first end and the second end, and the tubular portion is a cylinder. 
 
     
     
       2. The projection device of  claim 1 , wherein the projection lens has an optical axis, and the plurality of first fins comprises a plurality of sheet fins and/or a plurality of column fins. 
     
     
       3. The projection device of  claim 2 , wherein the plurality of sheet fins extends between the first end and the second end in a direction of the optical axis of the projection lens, and wherein an angle between an extension direction of the plurality of sheet fins and the optical axis of the projection lens is in a range of 90°-180°. 
     
     
       4. The projection device of  claim 3 , wherein the extension direction of the plurality of sheet fins is parallel to the optical axis of the projection lens. 
     
     
       5. The projection device of  claim 1 , wherein the first fin portion is arranged such that the plurality of first fins is disposed adjacent to the projection lens, and the second plate portion is positioned between the projection lens and the first fin portion. 
     
     
       6. The projection device of  claim 1 , wherein the second fin plate portion is arranged such that the plurality of first fins is disposed adjacent to the projection lens, and the first fin portion is positioned between the projection lens and the second plate portion. 
     
     
       7. The projection device of  claim 1 , wherein the housing comprises a tubular portion, two ends of the tubular portion are respectively the first end and the second end, and the light source module comprises:
 at least one first light source assembly, wherein each of the at least one first light source assembly comprises a first substrate and at least one first solid-state light source disposed on the first substrate, and the first plate portion of each of the at least one first heat dissipating element is connected to the first substrate. 
 
     
     
       8. The projection device of  claim 7 , wherein the smallest distance between the first substrate and the tubular portion is less than or equal to 20 mm. 
     
     
       9. The projection device of  claim 7 , wherein the light source module further comprises a second light source assembly, the second light source assembly comprises a second substrate and at least one second solid-state light source disposed on the second substrate, the projection device further comprises a second heat dissipating element, the second heat dissipating element comprises a plate portion and a fin portion, the plate portion comprises a first surface and a second surface opposite to each other, the first surface is connected to the second substrate, and the fin portion is connected to the second surface. 
     
     
       10. The projection device of  claim 7 , wherein the tubular portion is a cylinder, heights of the plurality of first fins with respect to the second plate portion are different. 
     
     
       11. The projection device of  claim 10 , wherein each of the at least one first heat dissipating element comprises a first curved transition portion connected between the first plate portion and the second plate portion. 
     
     
       12. The projection device of  claim 7 , wherein the housing further comprises a cover portion disposed at the first end of the tubular portion, the inlet comprises a plurality of openings, and the plurality of openings are disposed to be in at the tubular portion and surrounding the projection lens, and/or disposed to be in the cover portion. 
     
     
       13. The projection device of  claim 7 , wherein the outlet comprises a plurality of openings disposed to be in at the tubular portion and surrounding the second end. 
     
     
       14. The projection device of  claim 1 , wherein each of the at least one first heat dissipating element further comprises a third plate portion and a second fin portion, the third plate portion and the second plate portion are respectively connected to opposite sides of the first plate portion, the third plate portion is positioned to form a second angle with respect to the first plate portion, the second fin portion is connected to the third plate portion and comprises a plurality of second fins arranged at intervals, and the plurality of second fins is arranged between the first end and the second end. 
     
     
       15. The projection device of  claim 14 , wherein the second fin portion is arranged such that the plurality of second fins is disposed adjacent to the projection lens, and the third plate portion is positioned between the projection lens and the second fin portion. 
     
     
       16. The projection device of  claim 14 , wherein each of the at least one first heat dissipating element further comprises a second curved transition portion connected between the first plate portion and the third plate portion. 
     
     
       17. The projection device of  claim 1 , further comprising a fan disposed between the first end and the second end, and wherein the fan is used to provide an airflow flowing from the first end toward the second end. 
     
     
       18. A projection device, comprising a light source module, an optical engine module, a projection lens, a housing, and at least one first heat dissipating element, wherein:
 the light source module is configured to emit an illumination beam;   the optical engine module is disposed on a transmission path of the illumination beam to receive the illumination beam and convert the illumination beam into an image beam;   the projection lens is disposed on a transmission path of the image beam to receive the image beam and project the image beam to an outside of the projection device;   the housing is configured to accommodate the light source module, the optical engine module, and the projection lens, the housing comprises a first end and a second end opposite to each other, the image beam is projected along a direction from the first end to the outside of the projection device, and the housing further comprises an inlet adjacent the first end and an outlet adjacent the second end; and   the at least one first heat dissipating element is disposed in the housing, the at least one first heat dissipating element comprises a first plate portion, a second plate portion, and a first fin portion, the first plate portion is directly connected to the light source module, the second plate portion is not directly connected to any light source module, the second plate portion is connected to the first plate portion and positioned to form a first angle with respect to the first plate portion, the first fin portion comprises a plurality of first fins, and the plurality of first fins is disposed between the first end and the second end;   wherein the housing comprises a tubular portion, the first end and the second end are respectively two ends of the tubular portion, and the tubular portion is a cylinder.   
     
     
       19. The projection device of  claim 18 , wherein the projection lens has an optical axis, and the plurality of first fins comprises a plurality of sheet fins and/or a plurality of column fins. 
     
     
       20. The projection device of  claim 19 , wherein the plurality of sheet fins extends between the first end and the second end in a direction of the optical axis of the projection lens. 
     
     
       21. The projection device of  claim 20 , wherein the extension direction of the plurality of sheet fins is parallel to the optical axis of the projection lens. 
     
     
       22. The projection device of  claim 21 , wherein the plurality of sheet fins is arranged along a direction, the direction is perpendicular to the optical axis of the projection lens. 
     
     
       23. The projection device of  claim 21 , wherein the at least one first heat dissipating element partially surrounds the optical engine module. 
     
     
       24. The projection device of  claim 23 , wherein the plurality of first fins does not directly connect to a back side of the light source module. 
     
     
       25. The projection device of  claim 24 , wherein the plurality of first fins is thermally coupled to the second plate portion. 
     
     
       26. The projection device of  claim 18 , wherein the light source module comprises:
 at least one first light source assembly, wherein each of the at least one first light source assembly comprises a first substrate and at least one first solid-state light source disposed on the first substrate, and the first plate portion of the at least one first heat dissipating element is connected to the first substrate.   
     
     
       27. The projection device of  claim 26 , wherein the smallest distance between the first substrate and the tubular portion is less than or equal to 20 mm. 
     
     
       28. The projection device of  claim 26 , wherein the light source module further comprises a second light source assembly, the second light source assembly comprises a second substrate and at least one second solid-state light source disposed on the second substrate, the projection device further comprises a second heat dissipating element, the second heat dissipating element comprises a plate portion, the plate portion comprises a first surface and a second surface opposite to each other, the first surface is connected to the second substrate. 
     
     
       29. The projection device of  claim 18 , wherein the housing further comprises a cover portion disposed at the first end of the tubular portion, the inlet comprises a plurality of openings, and the plurality of openings is disposed to be at the tubular portion and at least partially surrounding the housing, and/or disposed to be in the cover portion. 
     
     
       30. The projection device of  claim 18 , wherein the outlet comprises a plurality of openings, and the plurality of openings is disposed to be at the tubular portion and at least partially surrounding the housing. 
     
     
       31. The projection device of  claim 30 , wherein the projection lens has an optical axis, the inlet is formed multiple rings arranged along the optical axis. 
     
     
       32. The projection device of  claim 31 , wherein the projection lens has an optical axis, the outlet is formed multiple rings arranged along the optical axis. 
     
     
       33. The projection device of  claim 31 , further comprising a fan disposed near the second end, and wherein the fan is disposed between the optical engine module and the second end, the fan is configured to provide an airflow flowing from the first end toward the second end. 
     
     
       34. The projection device, comprising a light source module, an optical engine module, a projection lens, a housing, and at least one first heat dissipating element, wherein:
 the light source module is configured to emit an illumination beam;   the optical engine module is disposed on a transmission path of the illumination beam to receive the illumination beam and convert the illumination beam into an image beam;   the projection lens is disposed on a transmission path of the image beam to receive the image beam and project the image beam to an outside of the projection device;   the housing is configured to accommodate the light source module, the optical engine module, and the projection lens, the housing comprises a first end and a second end opposite to each other, the image beam is projected from the first end to the outside of the projection device, and the housing further comprises an inlet adjacent the first end and an outlet adjacent the second end; and   the at least one first heat dissipating element is disposed in the housing, the at least one first heat dissipating element comprises a plate portion and a first fin portion, and   the plate portion comprises a first portion and a second portion, and the first portion is connected to the second portion, wherein an angle is formed between the first portion and the second portion, the first portion is directly connected to the light source module, and the second portion is not directly connected to any light source module,   wherein the at least one first heat dissipating element comprises a plurality of first fins, the plurality of first fins is disposed between the first end and the second end,   wherein the housing comprises a tubular portion, the first end and the second end are respectively two ends of the tubular portion, and the tubular portion is a cylinder,   wherein the inlet comprises a plurality of openings, and the plurality of openings is disposed to be at the tubular portion and at least partially surrounding the housing, and the outlet comprises a plurality of openings, and the plurality of openings is disposed to be at the tubular portion and at least partially surrounding the housing.   
     
     
       35. A projection device, comprising a light source module, an optical engine module, a projection lens, a housing, and at least one first heat dissipating element, wherein:
 the light source module is configured to emit an illumination beam;   the optical engine module is disposed on a transmission path of the illumination beam to receive the illumination beam and convert the illumination beam into an image beam;   the projection lens is disposed on a transmission path of the image beam to receive the image beam and project the image beam to an outside of the projection device;   the housing is configured to accommodate the light source module, the optical engine module, and the projection lens, the housing comprises a first end and a second end opposite to each other, the image beam is projected along a direction from the first end to the outside of the projection device, and the housing further comprises an inlet adjacent the first end and an outlet adjacent the second end; and   the at least one first heat dissipating element is disposed in the housing, the at least one first heat dissipating element comprises a first plate portion, a second plate portion, and a first fin portion, the first plate portion is connected to the light source module, the second plate portion is connected to the first plate portion and positioned to form a first angle with respect to the first plate portion, the first fin portion comprises a plurality of first fins, and the plurality of first fins is disposed between the first end and the second end;   wherein the housing comprises a tubular portion, two ends of the tubular portion are respectively the first end and the second end, and the light source module comprises:
 at least one first light source assembly, wherein each of the at least one first light source assembly comprises a first substrate and at least one first solid-state light source disposed on the first substrate, and the first plate portion of each of the at least one first heat dissipating element is connected to the first substrate; 
   wherein the tubular portion is a cylinder, and heights of the plurality of first fins with respect to the second plate portion are different.   
     
     
       36. A projection device, comprising a light source module, an optical engine module, a projection lens, a housing, and at least one first heat dissipating element, wherein:
 the light source module is configured to emit an illumination beam;   the optical engine module is disposed on a transmission path of the illumination beam to receive the illumination beam and convert the illumination beam into an image beam;   the projection lens is disposed on a transmission path of the image beam to receive the image beam and project the image beam to an outside of the projection device;   the housing is configured to accommodate the light source module, the optical engine module, and the projection lens, the housing comprises a first end and a second end opposite to each other, the image beam is projected along a direction from the first end to the outside of the projection device, and the housing further comprises an inlet adjacent the first end and an outlet adjacent the second end; and   the at least one first heat dissipating element is disposed in the housing, the at least one first heat dissipating element comprises a first plate portion, a second plate portion, and a first fin portion, the first plate portion is connected to the light source module, the second plate portion is connected to the first plate portion and positioned to form a first angle with respect to the first plate portion, the first fin portion comprises a plurality of first fins, and the plurality of first fins is disposed between the first end and the second end;   wherein each of the at least one first heat dissipating element further comprises a third plate portion and a second fin portion, the third plate portion and the second plate portion are respectively connected to opposite sides of the first plate portion, the third plate portion is positioned to form a second angle with respect to the first plate portion, the second fin portion is connected to the third plate portion and comprises a plurality of second fins arranged at intervals, and the plurality of second fins is arranged between the first end and the second end;   wherein each of the at least one first heat dissipating element further comprises a second curved transition portion connected between the first plate portion and the third plate portion.