US3336567A - Electrical connector - Google Patents

Electrical connector Download PDF

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Publication number
US3336567A
US3336567A US473580A US47358065A US3336567A US 3336567 A US3336567 A US 3336567A US 473580 A US473580 A US 473580A US 47358065 A US47358065 A US 47358065A US 3336567 A US3336567 A US 3336567A
Authority
US
United States
Prior art keywords
housing
cavities
extending
terminals
connector
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
US473580A
Other languages
English (en)
Inventor
Coldren Daniel Russell
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.)
TE Connectivity Corp
Original Assignee
AMP Inc
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
Application filed by AMP Inc filed Critical AMP Inc
Priority to US473580A priority Critical patent/US3336567A/en
Priority to GB28682/66A priority patent/GB1100738A/en
Priority to ES0328832A priority patent/ES328832A1/es
Priority to FR69218A priority patent/FR1486616A/fr
Priority to DE19661590014 priority patent/DE1590014A1/de
Priority to JP4709066A priority patent/JPS4415462B1/ja
Priority to DK377566AA priority patent/DK115128B/da
Priority to NL6610271A priority patent/NL6610271A/xx
Application granted granted Critical
Publication of US3336567A publication Critical patent/US3336567A/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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/56—Means for preventing chafing or fracture of flexible leads at outlet from coupling part
    • H01R13/567—Traverse cable outlet or wire connection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members
    • H01R13/432—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by stamped-out resilient tongue snapping behind shoulder in base or case

Definitions

  • This invention relates to electrical connectors particularly intended for use under circumstances where the space available for the connector is extremely limited.
  • the embodiment of the invention described below is intended to be used to make the connections from the stator of a hermetically sealed compressor unit to the external conductors although other uses for connectors in accordance with the invention will be apparent to those skilled in the art.
  • the compressor units used in refrigeration equipment comprise an electric motor which is suitably coupled to the compressor itself, the motor and compressor being contained in a hermetically sealed housing.
  • the entire unit is ordinarily designed with the intention that it be of a minimum size because of the desirability of keeping the outside dimensions of the equipment to a minimum.
  • the stator of the compressor may be contained in a generally cylindrical portion of the housing with the sidewalls of the stator disposed relatively close to the wall of the housing.
  • the electrical connections with the windings of the stator are made by means of the mounting member or header in the housing wall and having pins which extend through the wall.
  • the leads from the windings within the housing are suitably connected to these pins and an external connector is engaged with the pins on the outside of the housing. Because of the severe restrictions of space within the housing, a specialized class of connector has been devised for connecting the winding leads to the pins within the housing.
  • the present invention is thus directed to an improved connector for use inside the housing of a hermetically sealed compressor
  • a further object is to provide a connector for connecting the leads from a stator winding to the header of a hermetically sealed compressor unit.
  • a further object is to provide a low-profile connector utilizing flag-type terminals for use with contact pins arranged on a triangular pattern.
  • a further object is to provide a connector which can be made as a unitary molding and which is adapted to be used with insertable and removable flag-type contact terminals.
  • each cavity has an open contact-receiving end into which a flag-type cont-act is adapted to be inserted.
  • the center cavity has its contact-receiving end on one side of the connector and the end cavities have their contact-receiving ends on the other side.
  • the contact pins with which the connector is adapted to be used are arranged on a triangular pattern and the terminals, after insertion into the cavities, are inparallel relationship with each other but with the center terminal reversed, endto-end, with respect to the terminals in the outside cavities.
  • the width of the connector can be of a minimum dimension relative to the triangular pattern on which the pins are mounted.
  • FIGURE 1 is a fragmentary diagrammatic sectional view showing portions of the compressor housing, a stator in the housing and illustrating the manner in which the connector in accordance with the invention is used to connect the leads from the stator to the external conductors;
  • FIGURE 2 is a perspective view showing the mounting member or header for the contact pins which extend through the housing and showing a connector in accordance with the invention in alignment with, but exploded from, the header; v
  • FIGURE 3 is a plan view of the lower face or side of a connector housing in accordance with the invention.
  • FIGURES 4 and 5 are end views of the housing
  • FIGURE 6 is a view taken along the lines 6-6 of FIG- URE 4 showing a cavity in the connector housing and showing the manner in which a terminal is inserted into the housing;
  • FIGURE 7 is a view similar to FIGURE 6 butshowing the terminal fully inserted in the housing;
  • FIGURE 8 is a perspective view of a housing with terminals in the housing.
  • FIGURE 9 is a perspective view of a flag-type contact terminal intended for use in a connector in accordance with the invention.
  • a typical compressor unit for a domestic refrigerator as shown in FIGURE 1, comprises a generally cylindrical housing 2 having a closed end 4 and a motor stator 6 within the housing. It will be understood that the righthand end of the housing will be integral with other parts of the housing containing the compressor unit and that the entire housing will be hermetically sealed.
  • the stator 6 is floatingly suspended in the housing and has a relatively close fit within the portion 2 of the housing in order that the outside dimensions of the compressor unit might be kept to a minimum.
  • the leads 8, 10, 12 from the windings of the stator 6 must be connected to external conductors extending to the power supply and it is common in this art to achieve such connections by means of a header or mounting member 14 welded or otherwise secured in the Wall of the housing 2.
  • This mounting mem ber has a disc-like floor or base 22 through which three pins 16, 18, 20 extend.
  • a cylindrical flange 24 surrounds these pins, this flange being outwardly flared as shown at 26 to provide a conical surface against which the connector is seated.
  • a connector 28 in accordance with the invention comprises an insulating housing of diallyl phthalate, phenolic resin, or other relatively firm plastic which is designed such that it can be produced as a unitary molding in a single-action mold.
  • the housing 28 comprises an upper face 30 and a lower face 32 and has three parallel cavities 34, 36, 38 extending from one side to the other and parallel to the planes of the faces 30, 32.
  • Laterally extending flanges 40, 42 project from two sides of the housing and arcuate flanges 39, 41 extend from the remaining arcuate sides of the housing.
  • Conical surface portions 44 are provided on the lower face 32 on each side of the entrances to the cavities. The slope of these conical surface portions conforms to the slope 26 of the flared upper end of the flange 24 so that the housing can be seated snugly within the mounting member with the lower face 32 disposed beneath the flared upper end of the flange 24.
  • the disclosed embodiment of the invention is adapted to be used with flag-type contact terminals comprising a pair of parallel sidewalls 46 which are reversely bent inwardly and rearwardly as shown at 48, these reversely bent sections having opposed arcuate pockets 50 adapted to receive a contact pin so that a pin can be inserted through an opening in the floor or base 52 of the terminal and will be received between the arcuately formed surfaces 50.
  • a tang 54 extends downwardly, as viewed in the drawing, from the floor 52 and cooperates with a shoulder in the cavity of the connector housing to retain the terminals within the cavities.
  • the contact teminal is provided with a crimp portion 56 in alignment wth the contact portion which is crimped on the conducting core 60 of a wire and a second crimp portion 58 which is crimped onto the insulation of the wire 62.
  • Terminals of this type are generally referred to as being of the flag-type since their contact portions extend normally of the axis of the wire to which they are attached. The wires will thus extend normally of the contact pins with which the terminal is engaged after coupling.
  • each cavity has a top wall 64 recessed on one side as shown at 66 to provide a shoulder 68 for cooperation with the tang 54 of the terminal contained in the cavity.
  • the floor 70 of the cavity is generally flat but has an inclined ramp 71 at the end opposite to the end in which the shoulder and recess 66 are provided.
  • An axially extending centrally disposed rib 72 is provided at this entrance end of the cavity which functions to prevent insertion of a contact terminal into the cavity if it is not in the desired orientation of FIGURE 6.
  • Insertion is accomplished by holding the terminal at an inclination of 45' with respect to the fioor 70 with its contact end directed downwardly (as viewed in the drawing) and pushing it into the cavity until the contact end moves past the rib 72 at which time the terminal can be re-aligned so that its axis extends parallel to the axis of the cavity.
  • the roof portion of each cavity is cut away adjacent to the cavity entrance to permit insertion of the terminals from an oblique angle.
  • the terminal is then pushed through the cavity until its tang 54 lodges behind the shoulder 68. Forward movement of the terminal is limited by a tab 59 which extends laterally from crimp portion 58 and which bears against the edge of the top wall as shown in FIGURE 7.
  • the terminal After insertion, the terminal is thus oriented with its base portion 52 against the roof 64 of its cavity and its sidewalls and contact portion will be disposed remote from the rib 72.
  • a slot 74 is provided in the floor 70 of each cavity, the slot for the center cavity being disposed on one 'side of the housing while the slots of the end cavities 34, 38 are provided on the other side of the housing. It will thus be apparent that the contact portion of the terminal in the center cavity is disposed on the opposite side of the housing from the side of the contacts in the end cavities.
  • conductor-holding means are provided on the ends of the housing and beside the sidewalls of the end cavities 34, 38. These holding means comprise notches 78 formed by ears 80, 82 extending from the sidewalls of the cavities, the width of these notches being such that conductors will be firmly gripped after being placed therein.
  • the mounting of the terminals in the cavities merely requires that they be properly oriented, as shown in FIG- URE 6, and inserted until their tangs lodge behind the shoulders 68.
  • the connector is then engaged with the contact pins 16-20 by merely positioning the housing over the pins with the axes of the pins in alignment with the terminals and pressing the housing partially into the header 24.
  • a distinct advantage of the embodiment shown is that the maximum transverse dimension of the connector housing is substantially equal to the diameter of the flared upper end 26 of the header.
  • the connector does not, therefore, extend laterally beyond the header and is, moreover, firmly seated against the conical surface 26 by virtue of the conical bearing surfaces 44 on the underside of the housing. These bearing surfaces are provided on both sides of the housing and the connector, therefore, has no tendency to rock relative to the contact pins mounted in the header.
  • a further advantage of the disclosed embodiment is that an extremely low profile connector is achieved by virtue of the fact that the floors 70 of the cavities are disposed substantially below the upper end of the header when the connector is in position on the pins 16-20. This low profile is made possible by virtue of the fact that the terminals are inserted obliquely towards the axes of the cavities and aligned with the axes of the cavities only after they have been partially moved into the cavities. It should also be noted that the disclosed embodiment provides an insulating wall 83 which separates the emergent conductor from the upper edge of the header.
  • the disclosed form of housing can be produced at an extremely low cost with a single-action mold and without core pins extending laterally of the cavities axes.
  • the housing is of onepiece construction and completely surrounds all of the contact pins contained therein after insertion.
  • An electrical connector for use with three parallel contact pins, the axes of said pins defining the apices of an equilateral triangle and said pins being disposed in a circular cup-like mounting member, said connector comprising an insulating block having three parallel cavities extending therethrough, said cavities being open at both ends, each cavity having an inclined ramp at one end extending towards, and merging with, the floor thereof, the outside cavities of said group having their inclined ramps on one side of said connector and the center cavity having its inclined ramp on the other side thereof, slots on the floors of said cavities extending inwardly from the other sides thereof on the lower side of said block, flange means extending from said block in its own plane between the top and bottom thereof, and notches in the remaining sides of said block, said cavities being adapted to receive flag-type contact terminals having a generally rectangular profile and having spaced-apart sidewalls, said pins being adapted to enter said block through said slots and between said sidewalls, said block being mountable in said cup-like mounting member with its lower portions extending into
  • a disengageable electrical connection between three contact pins and a three position electrical connector said pins being mounted in a disc-like mounting member having an axially extending peripheral flange, the axes of said pins defining the apices of an equilateral triangle, said connection comprising a connector housing having three parallel cavities extending therein, the center cavity having a contact-receiving open end on one side of said housing and the end cavities having contact-receiving open ends on the other side of said housing, flag-type contact terminals in said cavities and conductors secured to said terminals and extending externally of said housing, said terminals being parallel to each other with the terminals in said center cavity being reversed, end-to-end, with respect to the terminals in said end cavities, the conductor extending from the terminal in said center cavity extending from said one side of said housing and the conductors extending from the terminals in said end cavities extending from the said other side of said housing.
  • a three position electrical connector for use with three parallel contact pins mounted in a cup-like mounting member with their axes defining the apices of an equilateral triangle, said connector comprising a disc-like insulating housing dimensioned to be partially inserted into said mounting member until one face of said housing is contained in said member and the other face thereof lies outside of said member, three parallel cavities extending through said housing from one side of the opposite side, identical contact terminals in said cavities and wires secured to, and extending from, said terminals, the two wires extending from the terminals in the outside ones of said cavities extending from said housing on said one side, and the wire extending from the terminal in the center one of said cavities extending from the opposite side of said housing, said wires and terminals extending laterally of the axes of said posts and said terminals being contained within the peripheral boundaries of said cuplike mounting member whereby said connector provides minimum overhang beyond the periphery of said member.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Multi-Conductor Connections (AREA)
US473580A 1965-07-21 1965-07-21 Electrical connector Expired - Lifetime US3336567A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US473580A US3336567A (en) 1965-07-21 1965-07-21 Electrical connector
GB28682/66A GB1100738A (en) 1965-07-21 1966-06-27 Electrical connector assembly
ES0328832A ES328832A1 (es) 1965-07-21 1966-07-08 Una disposicion de bloque conectador electrico.
FR69218A FR1486616A (fr) 1965-07-21 1966-07-12 Dispositif de connexion pour éléments tribroches
DE19661590014 DE1590014A1 (de) 1965-07-21 1966-07-18 Elektrische Dreifach-Steckkupplung
JP4709066A JPS4415462B1 (da) 1965-07-21 1966-07-20
DK377566AA DK115128B (da) 1965-07-21 1966-07-20 Stikdåse samt hus dertil.
NL6610271A NL6610271A (da) 1965-07-21 1966-07-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US473580A US3336567A (en) 1965-07-21 1965-07-21 Electrical connector

Publications (1)

Publication Number Publication Date
US3336567A true US3336567A (en) 1967-08-15

Family

ID=23880147

Family Applications (1)

Application Number Title Priority Date Filing Date
US473580A Expired - Lifetime US3336567A (en) 1965-07-21 1965-07-21 Electrical connector

Country Status (8)

Country Link
US (1) US3336567A (da)
JP (1) JPS4415462B1 (da)
DE (1) DE1590014A1 (da)
DK (1) DK115128B (da)
ES (1) ES328832A1 (da)
FR (1) FR1486616A (da)
GB (1) GB1100738A (da)
NL (1) NL6610271A (da)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753193A (en) * 1971-04-27 1973-08-14 Amp Inc Socket terminal
US3764960A (en) * 1972-05-25 1973-10-09 Prod Inc Van Cluster assembly and connector clip therefor
US4109992A (en) * 1977-08-05 1978-08-29 Amp Incorporated Connector for compressor header
US4186987A (en) * 1978-10-23 1980-02-05 General Motors Corporation Electrical socket connector and terminal therefor
US4210382A (en) * 1979-05-23 1980-07-01 Ford Motor Company Electrical connector and housing
US4230392A (en) * 1979-03-22 1980-10-28 General Motors Corporation Electrical socket connector
US4921454A (en) * 1989-06-20 1990-05-01 Amp Incorporated Cluster block assembly
US5584716A (en) * 1994-07-14 1996-12-17 Copeland Corporation Terminal assembly for hermetic compressor
DE19814401A1 (de) * 1998-03-31 1999-10-07 Whitaker Corp Elektrischer Kontakt zur Kontaktierung eines zylindrischen komplementären Kontaktstiftes und entsprechende elektrische Steckverbinder
US6372993B1 (en) 1995-06-13 2002-04-16 Copeland Corporation Sealed terminal assembly for hermetic compressor
US20050124203A1 (en) * 2001-05-04 2005-06-09 Herrick Todd W. Compressor with terminal assembly having dielectric material
US20050176287A1 (en) * 2004-02-10 2005-08-11 Karl Kroenung Connecting device for electrical connection of a socket of an electrical apparatus with a power cord plug
US20060116028A1 (en) * 2004-11-26 2006-06-01 Inarca S.P.A. Connection assembly for electrical cables, of the type for connection to connectors with cylindrical-pin terminals
US20080108241A1 (en) * 2006-11-02 2008-05-08 Tyco Electronics Corporation Wire retention connector system
US20080108246A1 (en) * 2006-11-02 2008-05-08 John Michael Landis Wire retention connector system
US20080121426A1 (en) * 2006-11-24 2008-05-29 Sumitomo Wiring Systems, Ltd. Locking construction and a connector provided therewith
USD835582S1 (en) * 2016-11-07 2018-12-11 Shenzhen Bell Creative Science and Education Co., Ltd. Connector for a robotic module

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3270303D1 (en) * 1981-12-12 1986-05-07 Amp Inc Electrical connector and contact receptacle
ITPC20080034A1 (it) * 2008-08-29 2010-02-28 Electrica S R L Supporto per rele' di avviamento atto a consentire l'applicazione di detto rele' su motori per compressori i cui terminali possono avere differenti configurazioni

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2332483A (en) * 1941-03-04 1943-10-19 Hugh H Eby Inc Electrical connector
US2728060A (en) * 1954-08-13 1955-12-20 American Motors Corp Refrigerating apparatus
US2741750A (en) * 1952-03-20 1956-04-10 Sylvania Electric Prod Socket type connector
US2760176A (en) * 1950-12-15 1956-08-21 Cinch Mfg Corp Electrical socket and contacts therefor
US2810056A (en) * 1955-05-09 1957-10-15 Westinghouse Electric Corp Multiple circuit terminal block
US3016511A (en) * 1957-08-05 1962-01-09 Gen Motors Corp Refrigerating apparatus
US3202959A (en) * 1962-09-10 1965-08-24 Amp Inc Electrical connector and housing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2332483A (en) * 1941-03-04 1943-10-19 Hugh H Eby Inc Electrical connector
US2760176A (en) * 1950-12-15 1956-08-21 Cinch Mfg Corp Electrical socket and contacts therefor
US2741750A (en) * 1952-03-20 1956-04-10 Sylvania Electric Prod Socket type connector
US2728060A (en) * 1954-08-13 1955-12-20 American Motors Corp Refrigerating apparatus
US2810056A (en) * 1955-05-09 1957-10-15 Westinghouse Electric Corp Multiple circuit terminal block
US3016511A (en) * 1957-08-05 1962-01-09 Gen Motors Corp Refrigerating apparatus
US3202959A (en) * 1962-09-10 1965-08-24 Amp Inc Electrical connector and housing

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753193A (en) * 1971-04-27 1973-08-14 Amp Inc Socket terminal
US3764960A (en) * 1972-05-25 1973-10-09 Prod Inc Van Cluster assembly and connector clip therefor
US4109992A (en) * 1977-08-05 1978-08-29 Amp Incorporated Connector for compressor header
US4186987A (en) * 1978-10-23 1980-02-05 General Motors Corporation Electrical socket connector and terminal therefor
US4230392A (en) * 1979-03-22 1980-10-28 General Motors Corporation Electrical socket connector
US4210382A (en) * 1979-05-23 1980-07-01 Ford Motor Company Electrical connector and housing
US4921454A (en) * 1989-06-20 1990-05-01 Amp Incorporated Cluster block assembly
US5584716A (en) * 1994-07-14 1996-12-17 Copeland Corporation Terminal assembly for hermetic compressor
US6372993B1 (en) 1995-06-13 2002-04-16 Copeland Corporation Sealed terminal assembly for hermetic compressor
DE19814401A1 (de) * 1998-03-31 1999-10-07 Whitaker Corp Elektrischer Kontakt zur Kontaktierung eines zylindrischen komplementären Kontaktstiftes und entsprechende elektrische Steckverbinder
DE19814401B4 (de) * 1998-03-31 2008-04-03 The Whitaker Corp., Wilmington Elektrischer Kontakt zur Kontaktierung eines zylindrischen komplementären Kontaktstiftes und entsprechende elektrische Steckverbinder
US20050124203A1 (en) * 2001-05-04 2005-06-09 Herrick Todd W. Compressor with terminal assembly having dielectric material
US6910904B2 (en) 2001-05-04 2005-06-28 Tecumseh Products Company Compressor with terminal assembly having dielectric material
US7025614B2 (en) 2001-05-04 2006-04-11 Tecumseh Products Company Compressor with terminal assembly having dielectric material
US20050176287A1 (en) * 2004-02-10 2005-08-11 Karl Kroenung Connecting device for electrical connection of a socket of an electrical apparatus with a power cord plug
US7004782B2 (en) * 2004-02-10 2006-02-28 Wella Ag Connecting device for electrical connection of a socket of an electrical apparatus with a power cord plug
US20060116028A1 (en) * 2004-11-26 2006-06-01 Inarca S.P.A. Connection assembly for electrical cables, of the type for connection to connectors with cylindrical-pin terminals
US7108565B2 (en) * 2004-11-26 2006-09-19 Inarca S.P.A. Connection assembly for electrical cables, of the type for connection to connectors with cylindrical-pin terminals
US20080108241A1 (en) * 2006-11-02 2008-05-08 Tyco Electronics Corporation Wire retention connector system
US20080108246A1 (en) * 2006-11-02 2008-05-08 John Michael Landis Wire retention connector system
US7488196B2 (en) * 2006-11-02 2009-02-10 Tyco Electronics Corporation Wire retention connector system
US7722382B2 (en) * 2006-11-02 2010-05-25 Tyco Electronics Corporation Wire retention connector system
US20080121426A1 (en) * 2006-11-24 2008-05-29 Sumitomo Wiring Systems, Ltd. Locking construction and a connector provided therewith
US7445489B2 (en) * 2006-11-24 2008-11-04 Sumitomo Wiring Systems, Ltd. Locking construction and a connector provided therewith
USD835582S1 (en) * 2016-11-07 2018-12-11 Shenzhen Bell Creative Science and Education Co., Ltd. Connector for a robotic module

Also Published As

Publication number Publication date
NL6610271A (da) 1967-01-23
GB1100738A (en) 1968-01-24
DE1590014A1 (de) 1970-05-14
JPS4415462B1 (da) 1969-07-09
DK115128B (da) 1969-09-08
FR1486616A (fr) 1967-06-30
ES328832A1 (es) 1967-04-16

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