Motor

Abstract

A motor includes a motor body, a housing, a controller, and a cover. The housing includes an annular cover joint that surrounds the controller. The cover joint includes a stepped portion on a side surface of the housing. The stepped portion includes a first surface that faces in the radial direction, and an upward second surface that extends radially from the lower end of the first surface. The cover includes a cylindrical portion radially facing the first surface of the cover joint. An adhesive bonds the first surface of the cover joint and a surface facing the radial direction of the cylindrical portion, and bonds the second surface of the cover joint and an end surface facing the lower side of the cylindrical portion.

What is claimed is: 
     
         1 . A motor comprising:
 a motor main body including a rotor and a stator, the rotor and the stator being centered on a central axis extending in an up-down direction;   a housing that houses the motor main body;   a controller that is located above the motor main body and controls rotation of the rotor; and   a cover that surrounds the controller from a radially outer side; wherein   the housing includes a cover joint that is in an annular shape and surrounds the controller as viewed in an axial direction;   the cover joint includes a stepped portion on a side surface of the housing;   the stepped portion includes a first surface facing a radial direction and a second surface facing upward and radially extending from a lower end of the first surface; and   the cover includes a cylindrical portion radially facing the first surface of the cover joint, and includes an adhesive that bonds the first surface of the cover joint and a surface facing the radial direction of the cylindrical portion and bonds the second surface of the cover joint and an end surface facing downward of the cylindrical portion.   
     
     
         2 . The motor according to  claim 1 , wherein the cover joint includes a first wall portion that protrudes radially from the first surface and contacts the surface, facing the radial direction, of the cylindrical portion. 
     
     
         3 . The motor according to  claim 2 , wherein the cover joint includes a first recess that is recessed downward from the second surface below the first wall portion. 
     
     
         4 . The motor according to  claim 2 , wherein the cover is fixed to the cover joint in a state of radially pressing the first wall portion. 
     
     
         5 . The motor according to  claim 2 , wherein
 the cover joint includes a plurality of the first wall portions;   the plurality of the first wall portions are spaced away from each other in a direction that the cover joint extends; and   surfaces, facing the radial direction, of the plurality of the first wall portions face directions different from each other.   
     
     
         6 . The motor according to  claim 1 , wherein the cover joint includes a second wall portion that protrudes upward from the second surface and contacts an end surface, facing downward, of the cylindrical portion. 
     
     
         7 . The motor according to  claim 6 , wherein the cover joint includes a second recess that is recessed radially inward from the first surface on a radially inner side of the second wall portion. 
     
     
         8 . The motor according to  claim 6 , wherein the cover joint includes three of more of the second wall portions. 
     
     
         9 . The motor according to  claim 1 , wherein the cover joint includes:
 a plurality of first wall portions that protrude radially outward from the first surface and contact an inner peripheral surface of the cylindrical portion;   a plurality of second wall portions that protrude upward from the second surface and contact an end surface, facing downward, of the cylindrical portion; and   a plurality of positioning sections in which the first wall portions and the second wall portions are adjacent to each other in a circumferential direction.   
     
     
         10 . The motor according to  claim 1 , wherein the cover joint includes:
 a first wall portion that protrudes radially outward from the first surface and contacts an inner peripheral surface of the cylindrical portion;   a first recess that is recessed downward from the second surface below the first wall portion;   a second wall portion that protrudes upward from the second surface and contacts an end surface, facing downward, of the cylindrical portion; and   a second recess that is recessed radially inward from the first surface on the radially inner side of the second wall portion;   the first wall portion and the second recess are adjacent in a circumferential direction; and   the first recess and the second wall portion are adjacent in the circumferential direction.