Source: https://patents.google.com/patent/US7264494B2/en
Timestamp: 2018-12-13 04:26:24
Document Index: 381350106

Matched Legal Cases: ['art 40', 'art 40', 'art 40', 'art 40', 'arts 40', 'arts 40', 'Application No. 0524857', 'Application No. 0524857', 'Application No. 0426585']

US7264494B2 - Electrical connector and socket assemblies - Google Patents
Electrical connector and socket assemblies Download PDF
US7264494B2
US7264494B2 US11295348 US29534805A US7264494B2 US 7264494 B2 US7264494 B2 US 7264494B2 US 11295348 US11295348 US 11295348 US 29534805 A US29534805 A US 29534805A US 7264494 B2 US7264494 B2 US 7264494B2
US11295348
US20060148304A1 (en )
Trevor Alan Kopecky
Alan Thomas Fraser
The present application is based on, and claims priority from, British Application Serial Number 0426585.6, filed Dec. 6, 2004, the disclosure of which is hereby incorporated by reference herein in its entirety.
In another arrangement the spigot 24′ is provided with a shoulder 35 in the passage 36 through which the conductor 20 (and the insulating sleeve 26′) extends, and the required sealing of the spigot 24′ on the conductor 20 is effected separately from the subsequent screwing of the spigot 24 into the associated recess in the casting. One or more O-rings 33 are located between the shoulder 35 in the passage 36 and a compression nut 34 that is screwed into a screwthreaded portion of the passage 36 to compress the O-rings 33 into engagement with the outer surface of the insulating sleeve 26′. Only after sealing of the spigot 24′ on the conductor 20 in this manner is the spigot 24′ screwed into the associated recess in the casting so that the portion of the spigot 24′ bearing the O-ring 25 projects from the casting in the manner shown in FIGS. 3, 5 and 6. In other, non-illustrated variants the spigot is not engaged within the recess by screwing but instead is a press fit within the recess by the engagement of complementary formation on the spigot and the inside of the recess, or a slip fit with a snap ring being provided to engage within a receiving groove in the inside wall of the recess. Alternatively the spigot may simply be arranged to be trapped between the two casting halves when these are screwed together, installed with a retaining ring, or bonded within the recess by adhesive. In the trapped configuration, the spigot could have limited float to allow for tolerance variations in the mating parts.
The construction of the socket assembly is best understood by reference to the exploded view of FIG. 9 showing the stator windings 50 within the stator housing 51 and the coil terminations 52 of the stator windings. Each coil termination 52 is connected to a flat end region of a conductive socket part 40 by a wire (not shown), and each socket part 40 is accommodated within a respective insulating sleeve 41 that extends forwardly of the socket part 40 as shown in FIG. 8. In addition a further, smaller insulating sleeve 53 is provided around the narrowed end portion of the socket part 40. The insulating sleeve 53 enters the end of the insulating sleeve 41 so as to ensure a long creepage path at the rear of the assembly, and insulating tape is wound around the connecting lead from the stator winding up to and over the sleeve 53. After assembly of these parts the canister 54 is passed over the parts and secured to the end of the stator housing 51 by screws 55, and the sheathed socket parts 40 are moved radially outwardly so as to engage them within receiving notches 56 prior to screwing of an end plate 57 to the end of the canister 54 by means of screws 58 so as to align the socket parts 40 with holes 59 in the end plate 57. The insulating sleeves 41 can float radially to a small extent within the holes in the end plate 57 during the final alignment stage of stator insertion.
FIG. 13 shows a further embodiment of the invention as applied to a connector assembly of a more standard type in which the three conductors extend through recesses in a common insulator block 84 retained within a generally cylindrical casting 90 by means of a retaining ring 89. The external circumference of the insulator block 84 is sealed with respect to the motor head when the connector is inserted into a corresponding socket by means of either a O-ring 88 (as shown at the top of the figure) or an elastomeric sealing member 88′ (as shown at the bottom of the figure). As in the previously described embodiments, the conductor 20 is terminated by a conductive terminating pin 87 surrounded by an insulating sleeve 86 sealed with respect to the terminating pin 87 by an O-ring seal 83 and having in addition an O-ring seal 85 for sealing the outside of the insulating sleeve 86 within the recess extending through the insulator block 84. As in the previously described embodiments, the insulating sleeve 86 is formed with a profiled bushing 93 over which the lead sheath 94 of the conductor 20 may be directly swaged. If required a lead sleeve or other gas impermeable membrane sleeve or tape could be used to seal the lead sheath 94 of the motor cable to the insulating sleeve 86. Furthermore the gap between the casting 90 and the conductor 20 may be filled with an epoxy or liquid fluoroelastomer compound to improve the sealing with respect to the conductor 20 and provide improved strain relief on the cable.
1. An electrical connector assembly, the connector assembly comprising:
a body having a respective recess for receiving each of a plurality of insulated conductors;
a respective spigot for sealing engagement within each of the recesses and having a passage for receiving an associated one of the insulated conductors;
sealing means associated with each of the spigots for sealing the spigot relative to the associated insulated conductor; and
a respective conductive terminating pin provided at one end of each of the insulated conductors, sealed with respect to the associated spigot and projecting forwardly of the body for engaging within a respective socket part of a socket assembly wherein the electrical connector assembly is configured for connecting a cable having the plurality of insulated conductors to the socket assembly.
2. The connector assembly according to claim 1, wherein the recesses are provided in the connector assembly body that is detachably connectable to a motor housing.
3. The connector assembly according to claim 2, wherein the connector body is connectable to the housing by at least one screw fastener.
4. The connector assembly according to claim 1, wherein the recesses are arranged in an arcuate configuration.
5. The connector assembly according to claim 1, wherein each of the spigots is provided with a sealing ring extending around an outer surface of the spigot.
6. The connector assembly according to claim 1, wherein the terminating pins are provided with strengthening ribs.
7. The connector assembly according to claim 1, wherein the terminating pins are moulded within the spigots.
8. The connector assembly according to claim 1, wherein a respective electrically insulating sleeve is provided for surrounding a portion of each of the conductors adjacent to an end of the conductor.
9. The connector assembly according to claim 1, wherein each of the spigots is held within its associated recess by being screwed, glued or snap-fitted into the recess or by being clamped therein between two clamping parts.
10. The connector assembly according to claim 9, wherein the sealing means comprises a respective sealing gland located between a shoulder in each recess and the associated spigot so as to be compressed as the spigot is screwed into the recess.
11. The connector assembly according to claim 10, wherein the recess tapers inwardly.
12. The connector assembly according to claim 1, wherein the sealing means comprises a respective sealing ring on an inside surface of each spigot that is an interference fit with an outer surface surrounding the associated conductor.
13. The connector assembly according to claim 1, wherein the sealing means comprises a respective sealing ring located between a shoulder in the passage in each spigot and an associated annular compression nut so as to compress in engagement with an outer surface surrounding the associated conductor extending through the passage as the compression cap is screwed into the passage.
14. The connector assembly according to claim 1, wherein the recesses extend substantially parallel to a motor shaft so as to permit a significant creepage distance between the outside of the assembly and the ends of the conductors for conductive connection to motor coils.
15. The connector assembly according to claim 1 in combination with the socket assembly comprising a plurality of socket parts for receiving the ends of the conductors for electrical connection thereto.
16. The combination according to claim 15, wherein each of the socket parts is provided with a respective electrically insulating sleeve.
17. The combination according to claim 15, wherein the socket parts are aligned with respective holes in an end plate through which the ends of the conductors are passed when they are inserted into the socket parts.
18. The combination according to claim 15, wherein conductive connections are provided between the socket parts and associated coils of a motor stator assembly.
19. The combination according to claim 18, wherein the socket parts are accommodated within a canister connected to the motor stator assembly and having notches within which the socket parts are engageable by radially outward movement after connection to the associated coils during assembly.
20. The combination according to claim 15, wherein a guiding pin coupled to the socket assembly is provided to guide insertion of the conductors into a motor head to provide mechanical alignment and electrical integrity of the socket parts once assembled.
21. The connector assembly according to claim 1, wherein the sealing means incorporates inner sealing means acting between an outer surface of each terminating pin and the passage.
22. The connector assembly according to claim 1, wherein the sealing means incorporates outer sealing means on an outer surface of the body.
23. A submersible motor having a housing and an electrical connector assembly within the housing, the connector assembly comprising:
a body having a respective recess for receiving each of a plurality of conductors;
a respective spigot for sealing engagement within each of the recesses and having a passage for receiving an associated one of the conductors; and
sealing means associated with each of the spigots for sealing the spigot relative to the associated conductor, wherein the electrical connector assembly is configured for connecting a cable having the plurality of insulated conductors to the motor.
24. The submersible motor according to claim 23, wherein the recesses are provided in the connector assembly body that is detachably connectable to the housing.
25. The submersible motor according to claim 24, wherein the connector body is connectable to the housing by at least one screw fastener.
26. The submersible motor according to claim 23, wherein the recesses are arranged in an arcuate configuration.
27. The submersible motor according to claim 23, wherein each of the spigots is provided with a sealing ring extending around an outer surface of the spigot.
28. The submersible motor according to claim 23, wherein a respective conductive terminating pin is provided at an end of each of the conductors.
29. The submersible motor according to claim 28, wherein the terminating pins are provided with strengthening ribs.
30. The submersible motor according to claim 28, wherein the terminating pins are moulded within the spigots.
31. The submersible motor according to claim 23, wherein a respective electrically insulating sleeve is provided for surrounding a portion of each of the conductors adjacent to an end of the conductor.
32. The submersible motor according to claim 23, wherein each of the spigots is held within its associated recess by being screwed, glued or snap-fitted into the recess or by being clamped therein between two clamping parts.
33. The submersible motor to claim 32, wherein the sealing means comprises a respective sealing gland located between a shoulder in each recess and the associated spigot so as to be compressed as the spigot is screwed into the recess.
34. The submersible motor according to claim 33, wherein the recess tapers inwardly.
35. The submersible motor according to claim 23, wherein the sealing means comprises a respective sealing ring on an inside surface of each spigot that is an interference fit with an outer surface surrounding the associated conductor.
36. The submersible motor according to claim 23, wherein the sealing means comprises a respective sealing ring on the outer surface surrounding each conductor that is an interference fit with an inside surface of the associated spigot.
37. The submersible motor according to claim 23, wherein the sealing means comprises a respective sealing ring located between a shoulder in the passage in each spigot and an associated annular compression nut so as to compress in engagement with an outer surface surrounding the associated conductor extending through the passage as the compression cap is screwed into the passage.
38. The submersible motor according to claim 23, wherein the recesses extend substantially parallel to a shaft of the motor so as to permit a significant creepage distance between the outside of the assembly and the ends of the conductors for conductive connection to motor coils.
39. The submersible motor according to claim 23, having a plurality of socket parts for detachably receiving the ends of the conductors for electrical connection thereto.
40. The submersible motor according to claim 39, wherein each of the socket parts is provided with a respective electrically insulating sleeve.
41. The submersible motor according to claim 39, wherein the socket parts are aligned with respective holes in an end plate through which the ends of the conductors are passed when they are inserted into the socket parts.
42. The submersible motor according to claim 39, wherein conductive connections are provided between the socket parts and associated coils of a stator assembly of the motor.
43. The submersible motor according to claim 42, wherein the socket parts are accommodated within a canister connected to the motor stator assembly and having notches within which the socket parts are engageable by radially outward movement after connection to the associated coils during assembly.
44. The submersible motor according to claim 39, wherein a guiding pin coupled to the socket assembly pin is provided to guide insertion of the conductors into a motor head to provide mechanical alignment and electrical integrity of the socket parts once assembled.
US11295348 2004-12-06 2005-12-06 Electrical connector and socket assemblies Active US7264494B2 (en)
GB0426585A GB0426585D0 (en) 2004-12-06 2004-12-06 Electrical connector and socket assemblies
GB0426585.6 2004-12-06
US11848937 US7726997B2 (en) 2004-12-06 2007-08-31 Electrical connector and socket assemblies
US12187585 US7632124B2 (en) 2004-12-06 2008-08-07 Electrical connector and socket assemblies for submersible assembly
US11848937 Division US7726997B2 (en) 2004-12-06 2007-08-31 Electrical connector and socket assemblies
US20060148304A1 true US20060148304A1 (en) 2006-07-06
US7264494B2 true US7264494B2 (en) 2007-09-04
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US11295348 Active US7264494B2 (en) 2004-12-06 2005-12-06 Electrical connector and socket assemblies
US11848937 Active US7726997B2 (en) 2004-12-06 2007-08-31 Electrical connector and socket assemblies
US12187585 Expired - Fee Related US7632124B2 (en) 2004-12-06 2008-08-07 Electrical connector and socket assemblies for submersible assembly
US (3) US7264494B2 (en)
CA (2) CA2528994C (en)
GB (3) GB0426585D0 (en)
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GB2438551A (en) 2007-11-28 application
GB0716794D0 (en) 2007-10-10 application
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US7726997B2 (en) 2010-06-01 grant
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GB0524857D0 (en) 2006-01-11 application
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Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KENNEDY, STEVEN CHARLES;YURATICH, MICHAEL ANDREW;KOPECKY, TREVOR ALAN;AND OTHERS;REEL/FRAME:017296/0825;SIGNING DATES FROM 20060306 TO 20060307