Electric linear motor

Abstract

The invention refers to an electric linear motor comprising at least one linear stator designed to be located in a fixed correlation to an environment, particularly building, and at least one mover designed for connection with an element to be moved and co-acting with the stator, which motor comprises a stator beam supporting said at least one stator, which stator beam has at least one side face carrying ferromagnetic poles of said stator spaced apart by a pitch, and which mover comprises at least one counter-face facing said side face(s) of the stator beam, in which counter-face electro-magnetic components of the mover are located.

1 . Electric linear motor comprising:
 at least one linear stator designed to be located in a fixed correlation to an environment;   at least one mover designed for connection with an element to be moved and co-acting to move along the stator; and   a stator beam supporting said at least one stator, the stator beam having at least one side face carrying ferromagnetic poles of said stator spaced apart by a pitch (d), wherein   the mover comprises at least one counter-face facing said side face(s) of the stator beam, in which counter-face electro-magnetic components of the mover are arranged to co-act with the ferromagnetic poles of the stator beam,   the stator and the mover form a guide for the travel of the element to be moved along the stator beam, and   the ferromagnetic stator poles of the stator beam and the electro-magnetic components of the mover form a magnetic bearing for the guide and suspension of the element.   
     
     
         2 . Electric linear motor according to  claim 1 , wherein the stator beam comprises a support structure for at least two stators and at least one fastening element to fix the support structure to the environment. 
     
     
         3 . Electric linear motor according to  claim 1 , wherein the elevator motor is a flux-switching permanent magnet motor (FSPM). 
     
     
         4 . Electric linear motor according to  claim 1 , wherein the stator beam has at least two side faces with stator poles having the same pitch (d) and wherein the position of the stator poles of both side faces in the length direction of the stator is preferably mutually offset. 
     
     
         5 . Electric linear motor according to  claim 1 , wherein the stator beam has a polygonal cross section and has several side faces carrying ferromagnetic poles, which side faces are connected via corners. 
     
     
         6 . Electric linear motor according to  claim 5 , wherein the cross section of the stator beam is rectangular. 
     
     
         7 . Electric linear motor according to  claim 4 , wherein the stator beam has four side faces with stator poles having the same pitch (d) and the pitch of the opposite side faces is identical whereas the pitch of the side faces extending in right angles is offset in length direction of the stator, preferably by a half pitch. 
     
     
         8 . Electric linear motor according to  claim 1 , wherein the mover has C-profile or U-Profile surrounding the stator beam. 
     
     
         9 . Electric linear motor according to  claim 8 , wherein whereby the mover has four counter-faces arranged in a rectangular configuration and facing the four side faces of the stator beam, wherein each of the counter-faces comprises the electro-magnetic components of the mover and the opening in the C-profile is configured to accommodate a fastening element of the stator beam. 
     
     
         10 . Electric linear motor according to  claim 1 , wherein the mover is configured have one mounting side for a rucksack-suspension of the element. 
     
     
         11 . Electric linear motor according to  claim 1 , wherein the mover or the element to be moved has a power source, which is configured as back-up power source for the mover. 
     
     
         12 . Electric linear motor according to  claim 1 , being configured to be installed in a high rise elevator with a vertical length of more than 50 m. 
     
     
         13 . Electric linear motor according to  claim 1 , wherein at least two parallel stator beams are located in the environment, each of which guiding at least one mover, whereby at least two movers located parallel to each other are configured to be commonly connected to the element to be moved, each of the movers co-acting with one of the stator beams, respectively. 
     
     
         14 . Electric linear motor according  claim 1 , wherein the ferromagnetic poles are teeth provided on a side face of a ferromagnetic stator rod, which teeth which are spaced apart by teeth gaps. 
     
     
         15 . Electric linear motor according to  claim 1 , wherein the stator(s) does not have any permanent magnets and as well as no windings either. 
     
     
         16 . Electric linear motor according to  claim 2 , wherein the elevator motor is a flux-switching permanent magnet motor (FSPM). 
     
     
         17 . Electric linear motor according to  claim 2 , wherein the stator beam has at least two side faces with stator poles having the same pitch (d) and wherein the position of the stator poles of both side faces in the length direction of the stator is preferably mutually offset. 
     
     
         18 . Electric linear motor according to  claim 3 , wherein the stator beam has at least two side faces with stator poles having the same pitch (d) and wherein the position of the stator poles of both side faces in the length direction of the stator is preferably mutually offset. 
     
     
         19 . Electric linear motor according to  claim 2 , wherein the stator beam has a polygonal cross section and has several side faces carrying ferromagnetic poles, which side faces are connected via corners. 
     
     
         20 . Electric linear motor according to  claim 3 , wherein the stator beam has a polygonal cross section and has several side faces carrying ferromagnetic poles, which side faces are connected via corners.