1. A backlight module, comprising:
a bottom plate;
a light source, disposed on the bottom plate, wherein a light-emitting surface of the light source is on a side of the light source back to the bottom plate;
an edge frame, surrounding the light source and abutting the bottom plate to form a groove, wherein a stair-shaped supporting portion is formed in the groove on an edge of the edge frame;
a diffusing sheet, comprising a front side and a back side, wherein the front side is opposite the back side, an edge of the back side is supported by the stair-shaped supporting portion, and the diffusing sheet is disposed in a light-emitting direction of the light source;
a diffusing plate, disposed on the front side of the diffusing sheet, wherein an edge of the diffusing plate partially overlaps the stair-shaped supporting portion; and
a front frame, comprising a light-emitting opening, wherein the front frame is fastened to the edge frame, a position groove is formed between the front frame and the stair-shaped supporting portion, the diffusing plate abuts an edge of the front frame, and the diffusing plate and the diffusing sheet are tightly clipped in the positioning groove.
2. The backlight module as claimed in claim 1, wherein a thickness of the diffusing sheet is between 0.5 and 1 mm, and a thickness of the diffusing plate is between 1.5 and 10 mm.
3. The backlight module as claimed in claim 2, wherein the diffusing sheet comprises a plurality of first diffusing particles, and the diffusing plate comprises a plurality of second diffusing particles.
4. The backlight module as claimed in claim 3, wherein a density d1 of the first diffusing particles inside the diffusing sheet is greater than a density d2 of the second diffusing particles inside the diffusing plate.
5. The backlight module as claimed in claim 4, wherein a diameter D1 of the first diffusing particles is smaller than a diameter D2 of the second diffusing particles.
6. The backlight module as claimed in claim 5, wherein the diameter D1 of the first diffusing particles is substantially between 1 and 50 \u03bcm, and the diameter D2 of the second diffusing particles is substantially between 1 and 100 \u03bcm.
7. The backlight module as claimed in claim 1, wherein the front frame is fastened to the edge frame via adhering, embedding, wedging, screw, welding or telescoping.
8. The backlight module as claimed in claim 7, further comprising a brightness enhancement film, corresponding to the back side of the diffusing sheet.
9. The backlight module as claimed in claim 8, wherein the diffusing sheet is adhered to a back side of the diffusing plate.
10. The backlight module as claimed in claim 9, wherein the diffusing sheet is adhered to the back side of the diffusing plate via twin adhesive tape.
11. A panel light module, comprising:
a bottom plate;
a light source, disposed on the bottom plate, wherein a light-emitting surface of the light source is on a side of the light source back to the bottom plate;
an edge frame, surrounding the light source and abutting the bottom plate to form a groove, wherein a stair-shaped supporting portion is formed in the groove on an edge of the edge frame;
a diffusing sheet, comprising a front side and a back side, wherein the front side is opposite the back side, an edge of the back side is supported by the stair-shaped supporting portion, and the diffusing sheet is disposed in a light-emitting direction of the light source;
a diffusing plate, disposed on the front side of the diffusing sheet, wherein an edge of the diffusing plate partially overlaps the stair-shaped supporting portion; and
a front frame, comprising a light-emitting opening, wherein the front frame is fastened to the edge frame, a position groove is formed between the front frame and the stair-shaped supporting portion, the diffusing plate abuts an edge of the front frame, and the diffusing plate and the diffusing sheet are tightly clipped in the positioning groove.
12. The panel light module as claimed in claim 11, wherein a thickness of the diffusing sheet is between 0.5 and 1 mm, and a thickness of the diffusing plate is between 1.5 and 10 mm.
13. The panel light module as claimed in claim 12, wherein the diffusing sheet comprises a plurality of first diffusing particles, and the diffusing plate comprises a plurality of second diffusing particles.
14. The panel light module as claimed in claim 13, wherein a density dl of the first diffusing particles inside the diffusing sheet is greater than a density d2 of the second diffusing particles inside the diffusing plate.
15. The panel light module as claimed in claim 14, wherein a diameter D1 of the first diffusing particles is smaller than a diameter D2 of the second diffusing particles.
16. The panel light module as claimed in claim 15, wherein the diameter D1 of the first diffusing particles is substantially between 1 and 50 \u03bcm, and the diameter D2 of the second diffusing particles is substantially between 1 and 100 \u03bcm.
17. The panel light module as claimed in claim 11, wherein the front frame is fastened to the edge frame via adhering, embedding, wedging, screw, welding or telescoping.
18. The panel light module as claimed in claim 17, further comprising a brightness enhancement film, corresponding to a back side of the diffusing sheet.
19. The panel light module as claimed in claim 18, wherein the diffusing sheet is adhered to a back side of the diffusing plate.
20. The panel light module as claimed in claim 19, wherein the diffusing sheet is adhered to the back side of the diffusing plate via twin adhesive tape.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A water-cooled internal combustion engine comprising:
a crankshaft;
power transmission control means disposed at an end of the crankshaft such that the crankshaft and the power transmission control means rotate about a common axis; and
a water pump having a water pump drive shaft parallel to the crankshaft;
wherein the water pump is disposed on an axial inside of the power transmission control means on a central side of the crankshaft.
2. The water-cooled internal combustion engine according to claim 1, wherein the water pump axially overlaps the power transmission control means.
3. The water-cooled internal combustion engine according to claim 1, wherein an oil tank is disposed on the axial outside of the power transmission control means.
4. The water-cooled internal combustion engine according to claim 2, wherein an oil tank is disposed on the axial outside of the power transmission control means.
5. The water-cooled internal combustion engine according to claim 3, wherein an outer end of the water pump is supported by an engine cover whose part constitutes the oil tank.
6. The water-cooled internal combustion engine according to claim 4, wherein an outer end of the water pump is supported by an engine cover whose part constitutes the oil tank.
7. The water-cooled internal combustion engine according to claim 5, wherein the outer end of the water pump serves as a cooling water-sucking nozzle which projects in the axial outside.
8. The water-cooled internal combustion engine according to claim 6, wherein the outer end of the water pump serves as a cooling water-sucking nozzle which projects in the axial outside.
9. A water-cooled internal combustion engine comprising:
a crankshaft;
power transmission control means disposed at an end of the crankshaft and projecting in a radial direction a first predetermined distance; and
a water pump having a water pump drive shaft parallel to the crankshaft, said water pump projecting in a radial direction a second predetermined distance that is less than the first predetermined distance of the projection of said power transmission control means;
wherein the water pump is disposed on an axial inside of the power transmission control means on a central side of the crankshaft and extends within the first predetermined distance of said power transmission control means for reducing an axial width of said water-cooled internal combustion engine.
10. The water-cooled internal combustion engine according to claim 9, wherein the water pump axially overlaps the power transmission control means.
11. The water-cooled internal combustion engine according to claim 9, wherein an oil tank is disposed on the axial outside of the power transmission control means.
12. The water-cooled internal combustion engine according to claim 10, wherein an oil tank is disposed on the axial outside of the power transmission control means.
13. The water-cooled internal combustion engine according to claim 11, wherein an outer end of the water pump is supported by an engine cover whose part constitutes the oil tank.
14. The water-cooled internal combustion engine according to claim 12, wherein an outer end of the water pump is supported by an engine cover whose part constitutes the oil tank.
15. The water-cooled internal combustion engine according to claim 13, wherein the outer end of the water pump serves as a cooling water-sucking nozzle which projects in the axial outside.
16. The water-cooled internal combustion engine according to claim 14, wherein the outer end of the water pump serves as a cooling water-sucking nozzle which projects in the axial outside.
17. A water-cooled internal combustion engine comprising:
a crankshaft;
a clutch disposed at an end of the crankshaft and projecting in a radial direction a first predetermined distance; and
a water pump having a water pump drive shaft parallel to the crankshaft, said water pump projecting in a radial direction a second predetermined distance that is less than the first predetermined distance of the projection of said clutch;
wherein the water pump is disposed to be adjacent to and axial positioned downwardly relative to said clutch, said water pump being position at a central side of the crankshaft and extends within the first predetermined distance of said clutch for reducing an axial width of said water-cooled internal combustion engine.
18. The water-cooled internal combustion engine according to claim 17, wherein the water pump axially overlaps the clutch.
19. The water-cooled internal combustion engine according to claim 17, wherein an oil tank is disposed on the axial outside of the clutch.
20. The water-cooled internal combustion engine according to claim 18, wherein an outer end of the water pump is supported by an engine cover whose part constitutes the oil tank.
21. A water-cooled internal combustion engine comprising:
a crankshaft;
a clutch disposed at an end of the crankshaft;
a water pump having a water pump drive shaft parallel to the crankshaft, the water pump being disposed on an axial inside of the clutch on a central side of the crankshaft; and
an oil tank disposed on an axial outside of the clutch.
22. A water-cooled internal combustion engine comprising:
a crankshaft;
power transmission control means disposed at an end of the crankshaft; and
a water pump having a water pump drive shaft parallel to the crankshaft; wherein the water pump is disposed on an axial inside of the power transmission control means in the direction of the axis of the control shaft, and
wherein a portion of the water pump radially overlaps a portion of the power transmission control means.
23. The water-cooled internal combustion engine according to claim 22, wherein in the internal combustion engine, a crank case is connected to a crankcase cover through a spacer, the spacer being formed with a water pump body of the water pump, and the crankcase cover accommodates the power transmission control means.
24. The water-cooled internal combustion engine according to claim 23, wherein the water pump includes a water pump cover attached to the water pump body, the water pump cover protruding forward of the water pump is fitted into and supported by a connection to the crankcase cover.
25. The water-cooled internal combustion engine according to claim 22, wherein an oil tank is disposed on an axial outside of the power transmission control means.
26. The water-cooled internal combustion engine according to claim 25, wherein an outer end of the water pump is supported by the crankcase cover whose part includes the oil tank.