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 b
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.
대표청구항▼
1. An electric motor brush assembly, comprising:an electrically conductive brush box having at least one crimping tab;a base member having an upper surface and an oppositely disposed crimping surface, the electrically conductive brush box being located against the upper surface and having a portion
1. An electric motor brush assembly, comprising:an electrically conductive brush box having at least one crimping tab;a base member having an upper surface and an oppositely disposed crimping surface, the electrically conductive brush box being located against the upper surface and having a portion of the crimping tab located against the oppositely disposed crimping surface;a field case housing having a seat with a retention member adapted to retain the base against the seat; andsaid base member having a spacer member adapted to space the portion of the crimping tab located against the oppositely disposed crimping surface away from the field case housing. 2. An electric motor brush assembly according to claim 1, wherein the base member comprises a high temperature thermoplastic material. 3. An electric motor brush assembly according to claim 1, wherein the base member comprises a thermoset material. 4. An electric motor brush assembly according to claim 1, further comprising a brush retained by the electrically conductive brush box and electrically connected to a power supply, and a biasing member adapted to bias the brush against a commutator. 5. An electric motor brush assembly according to claim 1, wherein the retention member comprises a lip under which a cooperating surface of the base is retained. 6. An electric motor brush assembly according to claim 1, wherein the retention member comprises cooperating snap-fit members on the field case housing and the base adapted to attach the base and the housing together. 7. An electric motor brush assembly according to claim 1, wherein the retention member comprises a screw. 8. An electric motor brush assembly according to claim 1, wherein the spacer member is a surface of the base member which is spaced away from the oppositely disposed crimping surface and located against the field case housing. 9. An electric motor brush assembly according to claim 1, wherein the oppositely disposed crimping surface is located within a recess of the base member and wherein the oppositely disposed spacer member further comprises a wall of the base member surrounding the recess. 10. An electric motor brush assembly according to claim 1, wherein the at least one crimping tab is a plurality of crimping tabs, and wherein the electrically conductive brush box further comprises oppositely disposed arms, and at least one of the plurality of crimping tabs extends off of each of the oppositely disposed arms. 11. An electric motor brush assembly, comprising:an electrically conductive brush box having at least one crimping tab;a base member having an upper surface and an oppositely disposed crimping surface, the electrically conductive brush box being located against the upper surface and having a portion of the crimping tab located against the oppositely disposed crimping surface; anda field case housing having a seat retaining the base member;wherein the field case housing and the base member cooperate to maintain the at least one crimping tab away from the field case housing. 12. An electric motor brush assembly according to claim 11, wherein the base member comprises a high temperature thermoplastic material. 13. An electric motor brush assembly according to claim 11, wherein the base member comprises a thermoset material. 14. An electric motor brush assembly according to claim 11, wherein the electrically conductive brush box, biasing member holder and at least one crimping tab are made from a single, integral piece. 15. An electric motor brush assembly according to claim 11, further comprising a brush retained by the electrically conductive brush box and electrically connected to a power supply, and a biasing member adapted to bias the brush against a commutator. 16. An electric motor brush assembly according to claim 11, wherein the seat comprises a lip under which a cooperating surface of the base member is retained. 17. An electric motor brush assembly according to claim 11, further comprising co operating snap-fit members on the seat and the base member adapted to attach the base member and the seat together. 18. An electric motor brush assembly according to claim 11, wherein the retention member comprises a screw. 19. An electric motor brush assembly according to claim 11, wherein the oppositely disposed crimping surface is located within a recess of the base member. 20. An electric motor brush assembly according to claim 11, wherein the at least one crimping tab is a plurality of crimping tabs, and wherein the electrically conductive brush box further comprises oppositely disposed arms, and at least one of the plurality of crimping tabs extends off of each of the oppositely disposed arms. 21. An electric motor brush assembly, comprising:an electrically conductive brush box adapted to hold a brush and having at least one crimping tab;a base member formed of high temperature resistant plastic and adapted to cooperate with the crimping tab to retain the brush box against a surface of the base member;a field case housing having a seat, the base member being located against the seat; anda screw member having a head and being 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 being located in non-contacting relationship with the electrically conductive brush box. 22. An electric motor brush assembly according to claim 21, wherein the base member comprises a high temperature thermoplastic material. 23. An electric motor brush assembly according to claim 21, wherein the base member comprises a thermoset material. 24. An electric motor brush assembly according to claim 21, further comprising a brush retained within the housing and electrically connected to a power supply, and a biasing member associated with the assembly and adapted to bias the brush against a commutator. 25. An electric motor brush assembly according to claim 21, wherein the seat comprises a lip under which a cooperating surface of the base member is retained. 26. An electric motor brush assembly according to claim 21, further comprising cooperating snap-fit members on the seat and the base member adapted to attach the base member and the housing seat together. 27. An electric motor brush assembly according to claim 21, wherein the at least one crimping tab is a plurality of crimping tabs, and wherein the brush box further comprises oppositely disposed arms extending from the housing, at least one of the plurality of crimping tabs extending off of each of the oppositely disposed arms.
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이 특허에 인용된 특허 (23)
Havens Paul W. (Abingdon VA) Mancl Dennis J. (Bluff City TN), Air guide assembly for an electric motor and methods of making.
Simpson Frank F. (Staines GB2) Johnson John W. (Wimbledon GB2) Oatham Robert J. (Caldecote GB2), Brush assembly and mounting arrangement for a portable tool.
Winkler,Wolfgang; Nitzsche,Hartmut; Seibert,Heinz; Vollmer,Klaus; Huber,Martin; Lula,Cornelia; Kupferer,Michael; White,Robert, Housing comprising at least one functional element of an electrical machine.
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