US2322020A - Commutator - Google Patents

Commutator Download PDF

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Publication number
US2322020A
US2322020A US460937A US46093742A US2322020A US 2322020 A US2322020 A US 2322020A US 460937 A US460937 A US 460937A US 46093742 A US46093742 A US 46093742A US 2322020 A US2322020 A US 2322020A
Authority
US
United States
Prior art keywords
shoulder
support
angle
commutator
segment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US460937A
Other languages
English (en)
Inventor
Lawrence F Hemphill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CA426089A priority Critical patent/CA426089A/fr
Application filed by General Electric Co filed Critical General Electric Co
Priority to US460937A priority patent/US2322020A/en
Application granted granted Critical
Publication of US2322020A publication Critical patent/US2322020A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/04—Commutators

Definitions

  • An object of my invention is to provide improved and simplified commutator constructions.
  • Fig. l is a side elevational view, partly broken away, illustrating an embodiment of my invention
  • Fig. 2 is an end view, partly broken away, of the commutator shown in Fig. 1
  • Fig. 3 is a perspective view of the clamping ring shown in Figs. 1 and 2
  • Fig. 4 is a perspective view of the insulating support shown in Figs. 1 and 2
  • Fig. 5 is a side elevational view of a commutator segment such as that shown in Figs. 1 and 2.
  • a simplified commutator construction comprising a plurality of commutator segments formed of two sections l and II. These commutator bars are mounted on an insulating sleeve support l2 mounted on a shaft l3.
  • the sleeve is provided with an insulating supporting shoulder element l4 extending outwardly at an angle to the sleeve, and a plurality of circumferentially spaced apart grooves I is formed in the axially extending sleeve portion 12 and shoulder It.
  • the commutator segments are formed prior to assembly, as shown in solid lines in Fig.
  • a clamping rin N3 of insulating material is ar ranged over the segment portions l0 and engages the outwardly extending segment angular portions H and biases them into engagement with the grooves IS in the shoulder l4 to a position as indicated by the dotted lines in Fig. 5, thereby biasing the segment axial portions I0 firmly against the insulating support l2.
  • the sleeve i8 plurality of clampin fingers l9 which is formed with inturned ends 20 arranged over the outer edge of the shoulder I4 and between adjacent segment angular portions I I in order to clamp the ring in position.
  • the inturned ends 20 of the clamping fingers is are formed on a smaller diameter than the outer diameter of the shoulder l4, and in assembling the commutator, the ring I8 is snapped into position and the inturned ends of the fingers [9 are clamped over the outer edge of the shoulder l4 and retain the commutator in assembled relationship.
  • a commutator including an insulating sleeve support, an insulating element on said support extending outwardly at an angle thereto, a plurality of commutator segments having a portion of each extending axially and substantially parallel to each other-on said sleeve support in spaced apart relationship and a portion of each formed at an angle to said axial portion, and means including a clamping ring for securing said segment angular portions clamped at an outwardly extending angle against said angular insulating element for biasin said segment axial portions firmly against said sleeve support.
  • a commutator including an insulating support having a shoulder thereon extending outwardly at an angle, a plurality of commutator segments having a portion of each extending is provided with axially and substantially parallel to each other on said support in spaced apart relationship and a portion of each formed at an angle to said axial portion, and means including a clamping ring for securing said segments on said support with said segment angular portions clamped against said shoulder at an outwardly extending angle.
  • a commutator including an insulating support having a shoulder thereon extending outwardly at an angle, a plurality of commutator segments having a portion of each extending axially and substantially parallel to each other on said support in spaced apart relationship and therefore, that my a portion of each formed prior to assembly at a greater angle to' said axial portion than said angle of said shoulder on said support, and means at a greater angle to said axially extending portion than said angle of said shoulder on said 'support, and means including a clamping ring for securing said segment angular portions clamped against said shoulder.
  • a commutator including an insulating sleeve support having a shoulder thereon extending outwardly at an angle, a plurality of spaced apart grooves in said sleeve and shoulder, a plurality oi commutator segments having a portion of v each extending axially in said grooves in said support and a portion of each formed prior to assembly at a greater angle to said axial portion than said angle of said shoulder on said support, and means for securing said segments on said support with said segment angular portions clamped against said shoulder and biased to substantially the same angle as said shoulder for biasing said segment axial portions firmly against said support.
  • A a portion of each formed prior to assembly at a greater angle to said axial portion than said angle of said shoulder on said support, and means including a clamping ring for securing said segments on said support with said segment angular portions clamped against said shoulder and biased to substantially the same'angle to said axial portion as said shoulder relative to said support for biasing said segment axial portions firmly against said support.
  • a commutator including an insulating support having a shoulder thereon extending outwardly at an angle, a plurality of commutator segments having a portion of each extending axially and substantially parallel to each other on said support and a portion of each formed prior to assembly at a greater angle to said axial portion than said angle of said shoulder on said support, and means including a clamping ring provided with fingers arranged between said segment angular portions and clamped about said shoulder for securing said segments on said support with said segment angular portions clamped against said shoulder andbiased to substantially the same angle to said axial portion as said shoulder relative to said support for biasing said segment axial portions firmly against said support.

Landscapes

  • Motor Or Generator Current Collectors (AREA)
US460937A 1942-10-06 1942-10-06 Commutator Expired - Lifetime US2322020A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA426089A CA426089A (fr) 1942-10-06 Commutateur electrique
US460937A US2322020A (en) 1942-10-06 1942-10-06 Commutator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA426089T
US460937A US2322020A (en) 1942-10-06 1942-10-06 Commutator

Publications (1)

Publication Number Publication Date
US2322020A true US2322020A (en) 1943-06-15

Family

ID=76297787

Family Applications (1)

Application Number Title Priority Date Filing Date
US460937A Expired - Lifetime US2322020A (en) 1942-10-06 1942-10-06 Commutator

Country Status (2)

Country Link
US (1) US2322020A (fr)
CA (1) CA426089A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934663A (en) * 1956-09-08 1960-04-26 Bosch Gmbh Robert Commutator and process of manufacturing the same
US3095515A (en) * 1961-11-06 1963-06-25 Louis Marx & Company Subminiature electric motor
US4469972A (en) * 1982-03-23 1984-09-04 Compagnie Industrielle Des Mecanismes Commutator for a miniature electric motor
US5446328A (en) * 1993-09-08 1995-08-29 Mabuchi Motor Co., Ltd. Miniature motor with preassembled commutator
US20070007845A1 (en) * 2005-07-07 2007-01-11 Suzuki Contactpoint Industry Co., Ltd. Built-up commutator and micro-motor employing the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934663A (en) * 1956-09-08 1960-04-26 Bosch Gmbh Robert Commutator and process of manufacturing the same
US3095515A (en) * 1961-11-06 1963-06-25 Louis Marx & Company Subminiature electric motor
US4469972A (en) * 1982-03-23 1984-09-04 Compagnie Industrielle Des Mecanismes Commutator for a miniature electric motor
US5446328A (en) * 1993-09-08 1995-08-29 Mabuchi Motor Co., Ltd. Miniature motor with preassembled commutator
US20070007845A1 (en) * 2005-07-07 2007-01-11 Suzuki Contactpoint Industry Co., Ltd. Built-up commutator and micro-motor employing the same

Also Published As

Publication number Publication date
CA426089A (fr) 1945-03-13

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