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US 10,227,210 B2Granted
Self-propelled elevators and elevator brake systems
OwnerKenny Wai Keung Lauinventor
Life of this patent
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Abstract
This invention is directed to a self-propelled elevator system having multiple motors or one motor, and methods for synchronizing said multiple motors. This invention is also directed to an elevator brake system to be used in said self-propelled elevator system or other types of elevators to increase their level of safety.
Claims19
An elevator system comprising:
- (a) An elevator cab;
- (b) Two parallel guide rails engaged with said elevator cab;
- (c) An elevator main frame connected to said elevator cab, wherein said elevator main frame comprises at least one vehicle propulsion system comprising a power supply system and one or more motors coupled to a roller assembly, wherein said roller assembly is powered by said motors to move the elevator cab along said guide rails;
- (d) One or more brake systems, each comprising (1) a brake housing, said brake housing comprising at least one electromechanical brake;
- said electromechanical brake comprising at least two brake shoes, two electromagnets and two springs, each of said brake shoe being connected to one end of said spring;
- said two brake shoes being spaced apart to form a space for placement of one of said two parallel guide rails;
- (2) a brake control box, said brake control box comprising a controller, said controller controlling power supply to said two electromagnets, wherein when power supply to the electromagnets is cut off, said two springs are released and press said brake shoes against said guide rail;
- and
- (e) An elevator cab frame for holding said elevator cab, wherein said elevator main frame (3) further comprises an adaptor shaft (41) and two attachment brackets (42), one on each side of said adaptor shaft (41);
- and
- said elevator cab frame (19) comprises a main bearing (191) and two attachment brackets (194), one on each side of said main bearing (191);
- wherein said main bearing has an inner diameter matching the external diameter of said adaptor shaft, said adaptor shaft to be fitted into said main bearing to form a pivot between said elevator main frame and said elevator cab frame.
9 more elements
An elevator system comprising:
- (a) An elevator cab;
- (b) Two parallel guide rails engaged with said elevator cab;
- (c) An elevator main frame connected to said elevator cab, wherein said elevator main frame comprises at least one vehicle propulsion system comprising a power supply system and one or more motors coupled to a roller assembly, wherein said roller assembly is powered by said motors to move the elevator cab along said guide rails;
- (d) One or more brake systems, each comprising (1) a brake housing, said brake housing comprising at least one electromechanical brake;
- said electromechanical brake comprising at least two brake shoes, two electromagnets and two springs, each of said brake shoe being connected to one end of said spring;
- said two brake shoes being spaced apart to form a space for placement of one of said two parallel guide rails;
- (2) a brake control box, said brake control box comprising a controller, said controller controlling power supply to said two electromagnets, wherein when power supply to the electromagnets is cut off, said two springs are released and press said brake shoes against said guide rail;
- and
- (e) An elevator cab frame for holding said elevator cab, wherein said elevator main frame further comprises an alignment motor, a clutch and an alignment motor controller, wherein said alignment motor has a motor shaft;
- and
- said elevator cab frame comprises a gyro sensor electrically connected to the alignment motor controller, and a motor adaptor plate;
- wherein said elevator main frame and elevator cab frame are connected via said motor shaft and said motor adaptor plate.
9 more elements
An elevator system comprising:
- (a) An elevator cab;
- (b) Two parallel guide rails engaged with said elevator cab;
- (c) An elevator main frame connected to said elevator cab, wherein said elevator main frame comprises at least one vehicle propulsion system comprising a power supply system and one or more motors coupled to a roller assembly, wherein said roller assembly is powered by said motors to move the elevator cab along said guide rails;
- (d) One or more brake systems, each comprising (1) a brake housing, said brake housing comprising at least one electromechanical brake;
- said electromechanical brake comprising at least two brake shoes, two electromagnets and two springs, each of said brake shoe being connected to one end of said spring;
- said two brake shoes being spaced apart to form a space for placement of one of said two parallel guide rails;
- (2) a brake control box, said brake control box comprising a controller, said controller controlling power supply to said two electromagnets, wherein when power supply to the electromagnets is cut off, said two springs are released and press said brake shoes against said guide rail;
- wherein said brake housing further comprises one or both of the following:
- (1) one or more leveling sensors electrically connected to said controller, and
- (2) one or more speed sensors electrically connected to said controller.
7 more elements
An elevator system comprising:
- (a) An elevator cab;
- (b) Two parallel guide rails engaged with said elevator cab;
- (c) An elevator main frame connected to said elevator cab, wherein said elevator main frame comprises at least one vehicle propulsion system comprising a power supply system and one or more motors coupled to a roller assembly, wherein said roller assembly is powered by said motors to move the elevator cab along said guide rails;
- and
- (d) One or more brake systems, each comprising (1) a brake housing, said brake housing comprising at least one electromechanical brake;
- said electromechanical brake comprising at least two brake shoes, two electromagnets and two springs, each of said brake shoe being connected to one end of said spring;
- said two brake shoes being spaced apart to form a space for placement of one of said two parallel guide rails;
- (2) a brake control box, said brake control box comprising a controller, said controller controlling power supply to said two electromagnets, wherein when power supply to the electromagnets is cut off, said two springs are released and press said brake shoes against said guide rail;
- wherein said power supply system comprises (1) a power supply strip comprising an insulator and at least one conductive strip connected to a power source;
- (2) a power receiver that encapsulates said power supply strip and has at least one conductive roller pressing against said at least one conductive strip under the action of a spring;
- wherein said power receiver is electrically connected to said vehicle propulsion system.
8 more elements
An elevator system comprising:
- (a) An elevator cab;
- (b) Two parallel guide rails engaged with said elevator cab;
- (c) An elevator main frame connected to said elevator cab, wherein said elevator main frame comprises at least one vehicle propulsion system comprising a power supply system and one or more motors coupled to a roller assembly, wherein said roller assembly is powered by said motors to move the elevator cab along said guide rails;
- (d) One or more brake systems, each comprising (1) a brake housing, said brake housing comprising at least one electromechanical brake;
- said electromechanical brake comprising at least two brake shoes, two electromagnets and two springs, each of said brake shoe being connected to one end of said spring;
- said two brake shoes being spaced apart to form a space for placement of one of said two parallel guide rails;
- (2) a brake control box, said brake control box comprising a controller, said controller controlling power supply to said two electromagnets, wherein when power supply to the electromagnets is cut off, said two springs are released and press said brake shoes against said guide rail;
- and
- (e) a proximity detection system comprising proximity sensors on the top, bottom or sides of said elevator cab;
- and
- (f) a motor controller electrically connected with said proximity detection system and said one or more motors from said vehicle propulsion system, wherein said motor controller prevents an elevator from hitting any obstacles.
8 more elements
An elevator brake system comprising (1) a brake housing comprising at least one electromechanical brake;
- said electromechanical brake comprising at least two brake shoes, two electromagnets and two springs, each of said brake shoes being connected to one end of said spring;
- said two brake shoes being spaced apart to form a space for placement of a guide rail;
- (2) a brake control box comprising a controller, said controller controlling power supply to said two electromagnets, wherein when power supply to the electromagnets is cut off, said two springs are released and press said brake shoes against said guide rail, wherein said brake housing further comprises a leveling sensor electrically connected to said controller.
An elevator brake system comprising (1) a brake housing comprising at least one electromechanical brake;
- said electromechanical brake comprising at least two brake shoes, two electromagnets and two springs, each of said brake shoes being connected to one end of said spring;
- said two brake shoes being spaced apart to form a space for placement of a guide rail;
- (2) a brake control box comprising a controller, said controller controlling power supply to said two electromagnets, wherein when power supply to the electromagnets is cut off, said two springs are released and press said brake shoes against said guide rail, wherein said brake housing further comprises a speed sensor electrically connected to said controller.
Dependencies are inferred from the claim text.