Motor with sectional housing

Abstract

A motor assembly includes a stator, a rotor rotatable about an axis, and a housing at least in part defining a motor chamber. The stator and the rotor at least in part are received within the motor chamber. The housing includes a first housing portion and a second housing portion. The housing portions engage one another along an interface. The interface restricts ingress of contaminants therethrough into the motor chamber. The housing portions cooperatively define a nested portion that at least in part defines the interface. The nested portion includes an arcuately extending projection and an arcuately extending receiver. The receiver defines an arcuately extending receiving channel. The projection is at least in part received within the receiving channel.

What is claimed is: 
     
         1 . A motor housing at least in part defining an axially extending motor chamber configured to receive a stator therein, said motor housing comprising:
 a first housing portion; and   a second housing portion,   said housing portions engaging one another along an interface,   said interface restricting ingress of contaminants therethrough into the motor chamber,   said housing portions cooperatively defining a nested portion that at least in part defines the interface,   said nested portion including—
 an arcuately extending projection, and 
 an arcuately extending receiver defining an arcuately extending receiving channel, 
 said projection being at least in part received within said receiving channel. 
   
     
     
         2 . The motor housing of  claim 1 ,
 said projection and said receiver extending circularly.   
     
     
         3 . The motor housing of  claim 1 ,
 said projection and said receiver extending continuously.   
     
     
         4 . The motor housing of  claim 1 ,
 said projection and said receiver extending arcuately uniformly.   
     
     
         5 . The motor housing of  claim 1 ,
 said projection including—
 an inner projection portion, 
 an outer projection portion spaced radially from said inner projection portion, and 
 a connecting projection portion extending between and interconnecting said inner and outer projection portions, 
   said receiver including—
 an inner receiver portion, 
 an outer receiver portion spaced radially from said inner receiver portion, and 
 a connecting receiver portion extending between and interconnecting said inner and outer receiver portions. 
   
     
     
         6 . The motor housing of  claim 5 ,
 said inner projection portion and said inner receiver portion extending at least substantially parallel to each other,   said outer projection portion and said outer receiver portion extending at least substantially parallel to each other,   said connecting projection portion and said connecting receiver portion extending at least substantially parallel to each other,   said inner projection portion and said outer projection portion angling toward each other such that each of said inner and outer projection portions forms a respective obtuse angle with the connecting projection portion,   said inner receiver portion and said outer receiver portion angling toward each other such that each of said inner and outer receiver portions forms a respective obtuse angle with the connecting receiver portion.   
     
     
         7 . The motor housing of  claim 6 ,
 said first housing portion presenting radially inner and outer first contact portions,   said second housing portion presenting radially inner and outer second contact portions,   said inner first and inner second contact portions engaging one another along the interface and being disposed radially inside said nested portion,   said outer first and outer second contact portions engaging one another along the interface and being disposed radially outside said nested portion.   
     
     
         8 . A motor housing at least in part defining an axially extending motor chamber configured to receive a stator therein, said motor housing comprising:
 a first housing portion; and   a second housing portion,   said housing portions engaging one another along a perimetrical interface,   said interface restricting ingress of contaminants therethrough into the motor chamber,   said housing portions cooperatively defining a nested portion that at least in part defines the interface,   said nested portion including—
 a perimetrically extending projection, and 
 a perimetrically extending receiver defining a perimetrically extending receiving channel, 
 said projection being at least in part received within said receiving channel. 
   
     
     
         9 . The motor housing of  claim 8 ,
 said projection and said receiver extending arcuately.   
     
     
         10 . The motor housing of  claim 8 ,
 said projection and said receiver extending continuously.   
     
     
         11 . The motor housing of  claim 8 ,
 said projection and said receiver being perimetrically uniform.   
     
     
         12 . The motor housing of  claim 8 ,
 said projection including—
 an inner projection portion, 
 an outer projection portion spaced radially from said inner projection portion, and 
 a connecting projection portion extending between and interconnecting said inner and outer projection portions, 
   said receiver including—
 an inner receiver portion, 
 an outer receiver portion spaced radially from said inner receiver portion, and 
 a connecting receiver portion extending between and interconnecting said inner and outer receiver portions. 
   
     
     
         13 . The motor housing of  claim 12 ,
 said inner projection portion and said inner receiver portion extending at least substantially parallel to each other,   said outer projection portion and said outer receiver portion extending at least substantially parallel to each other,   said connecting projection portion and said connecting receiver portion extending at least substantially parallel to each other,   said inner projection portion and said outer projection portion angling toward each other such that each of said inner and outer projection portions forms a respective obtuse angle with the connecting projection portion,   said inner receiver portion and said outer receiver portion angling toward each other such that each of said inner and outer receiver portions forms a respective obtuse angle with the connecting receiver portion.   
     
     
         14 . The motor housing of  claim 13 ,
 said first housing portion presenting radially inner and outer first contact portions,   said second housing portion presenting radially inner and outer second contact portions,   said inner first and inner second contact portions engaging one another along the interface and being disposed radially inside said nested portion,   said outer first and outer second contact portions engaging one another along the interface and being disposed radially outside said nested portion.   
     
     
         15 . The motor housing of  claim 14 ,
 said first housing portion and said second housing portion presenting respective perimetrically extending first and second sidewalls,   said first housing portion including a first flange extending outwardly from the sidewall and defining the inner and outer first contact portions,   said second housing portion including a second flange extending outwardly from the sidewall and defining the inner and outer second contact portions,   said flanges cooperatively forming the nested portion.   
     
     
         16 . The motor housing of  claim 8 ,
 said housing being devoid of a gasket between said first housing portion and said second housing portion.   
     
     
         17 . A motor housing at least in part defining an axially extending motor chamber configured to receive a stator therein, said motor housing comprising:
 a first housing portion; and   a second housing portion,   said housing portions engaging one another along a continuously extending interface,   said interface restricting ingress of contaminants therethrough into the motor chamber,   said housing portions cooperatively defining a nested portion that at least in part defines the interface,   said nested portion including—
 a continuously extending projection, and 
 a continuously extending receiver defining a continuously extending receiving channel, 
 said projection being at least in part received within said receiving channel. 
   
     
     
         18 . The motor housing of  claim 17 ,
 said projection and said receiver extending uniformly.   
     
     
         19 . The motor housing of  claim 17 ,
 said projection including—
 an inner projection portion, 
 an outer projection portion spaced radially from said inner projection portion, and 
 a connecting projection portion extending between and interconnecting said inner and outer projection portions, 
   said receiver including—
 an inner receiver portion, 
 an outer receiver portion spaced radially from said inner receiver portion, and 
 a connecting receiver portion extending between and interconnecting said inner and outer receiver portions. 
   
     
     
         20 . The motor housing of  claim 19 ,
 said inner projection portion and said inner receiver portion extending at least substantially parallel to each other,   said outer projection portion and said outer receiver portion extending at least substantially parallel to each other,   said connecting projection portion and said connecting receiver portion extending at least substantially parallel to each other,   said inner projection portion and said outer projection portion angling toward each other such that each of said inner and outer projection portions forms a respective obtuse angle with the connecting projection portion,   said inner receiver portion and said outer receiver portion angling toward each other such that each of said inner and outer receiver portions forms a respective obtuse angle with the connecting receiver portion.   
     
     
         21 . The motor housing of  claim 20 ,
 said first housing portion presenting radially inner and outer first contact portions,   said second housing portion presenting radially inner and outer second contact portions,   said inner first and inner second contact portions engaging one another along the interface and being disposed radially inside said nested portion,   said outer first and outer second contact portions engaging one another along the interface and being disposed radially outside said nested portion.   
     
     
         22 . The motor housing of  claim 17 ,
 said housing being devoid of a gasket between said first housing portion and said second housing portion.