1. A washing machine comprising:
a cabinet;
a top cover arranged at an open top surface of the cabinet and has a laundry entrance hole; and
a lid assembly disposed to be able to rotate at the top cover and openscloses the laundry entrance hole, wherein
the lid assembly includes a lid frame which forms the appearance and a lid inner coupled to an inside of the lid frame and has a hinge unit.
2. The washing machine of claim 1, wherein
the lid frame includes an upper lid frame which forms an upper portion of the lid frame and supports the lid inner, and a lower lid frame coupled to a lower side of the upper lid frame.
3. The washing machine of claim 2, wherein
the upper lid frame and the lower lid frame are coupled to each other by a connecting member in upper and lower directions.
4. The washing machine of claim 1, wherein
the lid frame has a lid inner inserting groove to which the lid inner is inserted.
5. The washing machine of claim 1, wherein
a plurality of lid inners are provided that are spaced apart from each other by a predetermined interval, and wherein
a plurality of hinge units are provided that are connected to neighboring lid inners of the plurality of lid inners.
6. The washing machine of claim 5, wherein
the plurality of hinge units include a first hinge unit which adjusts a degree of rotation of the lid assembly when the lid assembly opens or closes, and a second hinge unit which adjusts rotation speed of the lid assembly when the lid assembly opens or closes.
7. The washing machine of claim 6, wherein
the first hinge unit includes a hydraulic damper filled with a fluid and adjusts rotation speed by a fluid pressure, and the second hinge unit includes an elastic member which provides an elastic force in a direction which opens the lid assembly.
8. The washing machine of claim 5, wherein
at least two or more lid inners having the hinge unit among the plurality of lid inners are arranged at a side of the lid frame, wherein
each of the lid inners having the hinge unit are connected to the lid frame by a connecting member so that hinge axes of the hinge units connected to neighboring lid inners are in alignment with each other.
9. The washing machine of claim 5, wherein
the plurality of lid inners include four lid inners which are spaced apart from each other, wherein each of the lid inners has a similar shape to that of a corner of the lid frame, wherein two lid inners are arranged at a side of the lid frame.
10. The washing machine of claim 9, wherein
the plurality of hinge units include first and second hinge units which are arranged at the lid inners respectively, wherein
the lid inners are connected to the lid frame by a connecting member so that a first hinge axis of the first hinge unit is in alignment with a second hinge axis of the second hinge unit.
11. The washing machine of claim 9, wherein
the lid frame includes a gap press-fitting part protruded and is inserted into a gap between neighboring lid inners and pressurizes the lid inners in a direction away from each other, so that the lid inners are brought in tight contact with an inner surface of the lid frame.
12. The washing machine of claim 11, wherein
the gap press-fitting part includes a plurality of ribs which protrude from the lid frame and are spaced apart from each other by a predetermined interval.
13. The washing machine of claim 1, wherein
the lid frame includes a hinge cover extended and wraps around the hinge unit.
14. The washing machine of claim 1, wherein
the hinge unit includes a housing inserted into the lid inner and wraps around a hinge shaft, and a connecting arm which protrudes from a side of the housing and fits into a side surface of the lid inner.
15. The washing machine of claim 14, wherein
the lid inner, the connecting arm of the hinge unit, and the lid frame are arranged in an order thereof, and then integrally connected to each other by a connecting member.
16. The washing machine of claim 1, wherein
each of the lid frame and the lid inner is formed to have an opening at a central portion thereof, wherein a glass unit is arranged at the opening.
17. The washing machine of claim 16, wherein
the lid inner further includes a glass guide rib which guides the positions of the glass unit.
18. The washing machine of claim 16, wherein
a plurality of lid inners are provided, wherein the glass unit pressurizes the plurality of lid inners toward the lid frame so that the lid inners are brought in tight contact with the lid frame.
19. The washing machine of claim 1, further comprising:
a handle which protrudes forwards more than the top cover so that a user’s hand is inserted into a space between the lid frame and the top cover, wherein the user can hold the handle.
20. A washing machine comprising:
a cabinet;
a top cover arranged at an open top surface of the cabinet and has a laundry entrance hole; and
a lid assembly disposed to be able to rotate at the top cover and openscloses the laundry entrance hole, wherein
the lid assembly includes a lid frame which forms the appearance, a plurality of lid inners which are spaced apart from each other by a predetermined interval inside the lid assembly, a plurality of hinge units connected to the lid inners and the lid frame, wherein a hinge unit is inserted into each of two neighboring lid inners among the plurality of lid inners, a glass unit coupled to the lid inner and pressurizes the lid inner toward the lid frame so that the lid inner is brought in tight contact with the lid frame, and a decoration panel coupled to a front and lower side of the lid frame.
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 restraint arrangement for end windings of a rotor in an electrical machine comprising:
an end winding support having a plurality of axially extending, circumferentially spaced support beams secured at one end to the rotor against movement in an axial direction; and
a plurality of circumferentially spaced, axially extending support rakes radially outwardly of respective beams for receiving the circumferentially extending end windings between axially spaced tines of the rakes and restraining the end windings against axial movement.
2. A restraint according to claim 1 wherein said beams are secured at said one end to an end face of the rotor by a tongue-and-groove connection.
3. A restraint according to claim 1 including an annular end disk secured to said beams for precluding axial thermal expansion of the rotor end windings.
4. A restraint according to claim 1 including an interpolar brace outwardly of a rotor end spindle disposed to space an outermost end winding from one pole of the rotor against circumferential displacement of an outermost end winding of each adjacent pole.
5. A restraint according to claim 1 including an annular end disk secured to said beams for precluding axial expansion of the rotor end windings, said disk having a predetermined and variable weight distribution about the disk for minimizing tendencies of the end windings to lose concentricity upon rotation of the rotor about an axis thereof.
6. A restraint according to claim 5 wherein said weight distribution is diametrically symmetrical to avoid imbalancing the rotor.
7. A restraint according to claim 5 wherein said weight distribution is in part provided by diametrically opposed recesses formed in a face of the disk.
8. A restraint according to claim 7 including an enclosure about the end windings and having apertures therethrough adjacent said disk, said recesses lying in communication with said apertures respectively affording passages for flowing the cooling medium outwardly of the rotor.
9. A restraint according to claim 1 in combination with a rotor body having defined pole regions and pole faces and parallel sides adjacent the pole faces, prefabricated field winding modules having sequentially abutting flat field windings, said modules being disposed over the parallel sides of the rotor body, said rotor having a quadrature axis generally perpendicular to said parallel sides, said weight distribution about said disk being such that the disk has a greater diametrically symmetrical weight along the quadrature axis than the diametrical symmetrical weight along a direct axis perpendicular to the quadrature axis and the axis of rotation.