What is claimed is:
1. A controller of an elevator comprising:
a converter for rectifying AC power from an AC power source and converting the AC power to DC power;
an inverter for converting the DC power to AC power of a variable voltage and a variable frequency and driving an electric motor and operating the elevator;
power accumulating means arranged between DC buses between said converter and said inverter, and accumulating DC power from the DC buses at a regenerative operation time of the elevator and supplying the DC power accumulated on the DC buses at a power running operation time; and
charging-discharging control means for controlling charging and discharging operations of said power accumulating means with respect to said DC buses;
the controller being characterized in that said power accumulating means is constructed by a secondary battery and a DC-DC converter for controlling charging and discharging operations of the secondary battery, and said secondary battery is constructed by connecting plural cells in series to each other.
2. A controller of an elevator according to claim 1, wherein
the secondary battery of said power accumulating device is constructed by connecting plural cells in series to each other in a bar shape and arranging the cells in a vertical direction within an ascendingdescending path.
3. A controller of an elevator according to claim 1, wherein
the secondary battery of said power accumulating device is constructed by plural set batteries such that terminal portions of the plural cells are fixedly connected to each other and female screw terminals are attached to both ends of each set battery as one set, and the plural set batteries are connected to each other in one bar shape by using a double-end stud and are stored into a cylindrical case.
4. A controller of an elevator according to claim 1, wherein
each of the cells of said power accumulating device is arranged with the side of a pressure safety valve facing upward.
5. A controller of an elevator according to claim 1, wherein
said power accumulating device is arranged in a clearance of an ascendingdescending path and a car.
6. A controller of an elevator according to claim 1, wherein
said power accumulating device is arranged at any one of four corners within an ascendingdescending path, a portion near a rail, or a portion near a cable within the ascendingdescending paths
7. A controller of an elevator according to claim 1, wherein
a cooler for forced air cooling is arranged at any one of above, below, or both above and below of said power accumulating device.
8. A controller of an elevator according to claim 1, wherein
an air cooling fan for flowing a wind in a vertical direction is attached to said power accumulating device.
9. A controller of an elevator according to claim 7, wherein
the controller further comprises:
a temperature measuring device for measuring a temperature of said power accumulating device; and
a control device for operating said cooler when a detecting temperature of said temperature measuring device is equal to or greater than a predetermined value.
10. A controller of an elevator according to claim 9, wherein
said temperature measuring device measures the temperature of a side face of a cell near a terminal end on an unarranging side of said cooler, or the temperature of a side face of a cell near a center when said cooler is arranged on each of both sides.
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 segmental block retaining wall comprising:
(a) a plurality of upper blocks and lower blocks, where upper blocks are superjacent on the lower blocks, where each block has
(i) a front wall;
(ii) a rear wall opposed to said front wall;
(iii) first and second side walls;
(iv) an upper block planar surface;
(v) a lower block planar surface;
wherein said bottom surface has a slot having a particular concave profile extending longitudinally parallel to said front wall, and said top surface has two anchoring holes; and
(b) a connector with a bottom portion having two anchor plugs for insertion into said anchoring holes, and a top portion for complementary tight fit for said slot, said connector extending longitudinally approximately the length of said slot;
wherein said connector is tightly received in said slot and anchored in said anchoring holes, being sandwiched tightly by one upper block and one lower block.
2. A segmental block wall comprising:
(a) a plurality of upper blocks and lower blocks, where upper blocks are superjacent on the lower blocks, where each block has
(i) a front wall;
(ii) a rear wall opposed to said front wall;
(iii) first and second side walls;
(iv) an upper block planar surface;
(v) a lower block planar surface;
wherein said bottom surface has a slot having a particular concave profile extending longitudinally parallel to said front wall, and said top surface has an anchoring hole; and
(b) a connector with a bottom portion with an anchor plug for said anchoring hole, and a top portion for complementary tight fit for said slot, each said connector extending longitudinally approximately a small fraction of the length of said slot;
wherein said connectors are tightly received in said slot, each said connector being anchored in one said anchoring hole, being sandwiched tightly by one upper block and one lower block.
3. The segmental block wall of claim 1, further comprising a geosynthetic grid which is wedged about said connector.
4. The segmental block wall of claim 3, wherein said connector has a multi-edged surface to provide a friction fit for said grid to grip.
5. The segmental block wall of claim 4, wherein each said block has a central cavity and opposed curved lug on the bottom surface that are displaced rearwardly of the front of said lug, wherein said upper blocks can be formed into a curved wall and said connectors can be rotated within said anchoring holes.
6. The segmental block wall of claim 5, wherein said geosynthetic grid is wedged completely about said connector.
7. The segmental block wall of claim 6, wherein said geosynthetic grid is wedged partially about said connector.
8. The segmental block wall of claim 7, wherein said anchor plug has a sharp bottom portion.
9. The segmental block wall of claim 2, further comprising a geosynthetic grid which is wedged about said connector.
10. The segmental block wall of claim 9, wherein said connector has a multi-edged surface to provide a friction fit for said grid to grip.
11. The segmental block wall of claim 10, wherein each said block has a central cavity and opposed curved lug on the bottom surface that are displaced rearwardly of the front of said lug, wherein said upper blocks can be formed into a curved wall and said connectors can be rotated within said anchoring holes.
12. The segmental block wall of claim 11, wherein said geosynthetic grid is wedged completely about said connector.
13. The segmental block wall of claim 12, wherein said geosynthetic grid is wedged partially about said connector.
14. The segmental block wall of claim 13, wherein said anchor plug has a sharp bottom portion.
15. A method of supporting a retaining wall with a geosynthetic grid, comprising the steps of:
(a) interlocking an upper block and a lower block with a longitudinal connector that extends the block length by tightly sandwiching said connector between said upper and lower blocks;
(b) wedging the geosynthetic grid about said connector; and
(c) anchoring said connector to lower block with plugs inserted into the lower block.