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US 6,617,736 B1Granted
Axle tube structure for a motor
AssigneeSunonwealth Electric Machine Industry Co., Ltd.
InventorsAlex Horng, Yin-Rong Hong
Life of this patent
Estimating the term…
Abstract
An axle tube structure for a motor includes a casing having an axle tube. An inner periphery of the axle tube includes plural grooves each having an open upper end. An annular groove is defined in a bottom of the inner periphery of the axle tube. An engaging member includes a ring engaged in the annular groove of the axle tube and plural legs extending from the ring. Each leg is engaged in an associated one of the grooves of the axle tube.
Claims14
An axle tube structure comprising:
- a casing comprising an axle tube having a hole, said hole of said axle tube including an inner periphery for receiving at least one bearing, and a lower end retaining portion, said inner periphery of said axle tube including plural grooves each having an open upper end;
- and
- a detachable engaging member comprising a ring and plural legs extending from said ring, said ring adapted to engage said lower end retaining portion of said axle tube with said plural legs being located in said grooves of said axle tube when said ring of the engaging member engages the lower end retaining portion of the casing.
A motor comprising:
- a casing comprising an axle tube having a hole, said hole of said axle tube including an inner periphery for receiving at least one bearing, and a lower end retaining portion, said inner periphery of said axle tube including plural grooves each having an open upper end;
- and
- a detachable engaging member comprising a ring and plural legs extending from said ring, said ring adapted to engage said lower end retaining portion of said axle tube with said plural legs being located in said grooves of said axle tube when said ring of the engaging member engages the lower end retaining portion of the casing;
- a stator comprising a plurality of laminated silicon steel plates and a central hole, said central hole of said stator being mounted to an outer periphery of said axle tube and retained in place by resilient forces exerted by said plural legs of said engaging member;
- at least one bearing mounted in the inner periphery of said axle tube;
- and
- a rotor including a shaft rotatably held by said at least one bearing, said rotor further including a permanent magnet for induction with said stator to thereby drive the rotor.
4 more elements
A motor comprising:
- a casing comprising an axle tube having a hole, said hole of said axle tube including an inner periphery for receiving at least one bearing, and a lower end retaining portion, said inner periphery of said axle tube including plural grooves each having an open upper end;
- and
- a detachable engaging member comprising a ring and plural legs extending from said ring, said ring adapted to engage said lower end retaining portion of said axle tube with said plural legs being located in said grooves of said axle tube when said ring of the engaging member engages the lower end retaining portion of the casing;
- a stator comprising a central hole, said central hole of said stator being mounted to an outer periphery of said axle tube and retained in place by resilient forces exerted by said plural legs of said engaging member;
- a bearing mounted in the inner periphery of said axle tube;
- and
- a rotor including a shaft rotatably held by said bearing, said rotor further including a permanent magnet for induction with said stator to thereby drive the rotor.
4 more elements
A motor comprising:
- a casing comprising an axle tube having a hole, said hole of said axle tube including an inner periphery for receiving at least one bearing, said inner periphery of said axle tube including plural grooves each having an open upper end;
- an engaging member comprising a solid bottom plate and plural legs extending from said solid bottom plate, said solid bottom plate being secured to a bottom of said axle tube with said plural legs being located in said grooves of said axle tube;
- a stator comprising a central hole, said central hole of said stator being mounted to an outer periphery of said axle tube and retained in place by resilient forces exerted by said plural legs of said engaging member;
- a bearing mounted to the inner periphery of said axle tube;
- and
- a rotor including a shaft rotatably held by said at least one bearing, said rotor further including a permanent magnet for induction with said stator to thereby drive the rotor.
3 more elements
Dependencies are inferred from the claim text.