Electric motor brush assembly
First Claim
1. An electric motor brush assembly, comprising:
- a housing comprising a retention member and a one-piece molded housing component, the one-piece molded housing component having a seat;
a base member retained against the seat by the retention member, the retention member comprising a lip under which a cooperating surface of the base member is retained; and
an electrically conductive brush box being attached to the base member;
wherein the base member is sandwiched between the electrically conductive brush box and the one-piece molded housing component, thereby insuring that the electrically conductive brush box is spaced away from the housing.
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Accused Products
Abstract
An electrically conductive brush box is located against the upper surface of a base and has crimping tabs located against an oppositely disposed crimping surface. The base is formed of high temperature resistant plastic. A field case housing has a seat with a retention member adapted to retain the base against the seat. A screw is threaded into the field case housing such that the head presses against a surface of the base member to retain the base member in the seat. The screw member is located in non-contacting relationship with the electrically conductive brush box. A spacer member is adapted to space the portion of the crimping tab against the crimping surface away from the field case housing. The brush box includes a biasing member holder and the crimping tabs are located adjacent the holder.
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Citations
18 Claims
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1. An electric motor brush assembly, comprising:
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a housing comprising a retention member and a one-piece molded housing component, the one-piece molded housing component having a seat; a base member retained against the seat by the retention member, the retention member comprising a lip under which a cooperating surface of the base member is retained; and an electrically conductive brush box being attached to the base member; wherein the base member is sandwiched between the electrically conductive brush box and the one-piece molded housing component, thereby insuring that the electrically conductive brush box is spaced away from the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electric motor brush assembly, comprising:
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an electrically conductive brush box including a brush housing which supports a brush for movement toward a commutator, the electrically conductive brush box including a biasing member holder located outside the brush housing; a base member having an upper surface and a lower surface, the electrically conductive brush box being located against the upper surface and being attached to the bass member adjacent the biasing member holder; and a housing comprising a resin component, the housing further comprising a retention member adapted to retain the lower surface of the base member against the resin component of the housing, the retention member comprising a snap-fit member on the housing that cooperates with a snap-fit member on the base member to attach the base member and the housing together. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. An electric motor brush assembly, comprising:
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a housing encompassing a commutator, the housing having a seat with a retention member comprising a lip under which a cooperating surface of the base is retained; a base member retained against the seat by the retention member; and an electrically conductive brush box being attached to the base member; wherein the base member is sandwiched between the electrically conductive brush box and the housing, thereby insuring that the electrically conductive brush box is spaced away from the housing.
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18. An electric motor brush assembly, comprising:
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a housing encompassing a commutator, the housing having a seat with a retention member comprising cooperating snap-fit members on the housing and the base adapted to attach the base and the housing together; a base member retained against the seat by the retention member; and an electrically conductive brush box being attached to the base member; wherein the base member is sandwiched between the electrically conductive brush box and the housing, thereby insuring that the electrically conductive brush box is spaced away from the housing.
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Specification