The present invention relates generally to electrical connectors and, more particularly, to a powerpole connector housing for the packaging of blocked powerpole connectors into a housing which provides positive latching, strain relief, and system grounding.
Referring to
Unfortunately, there are a number of shortcomings to this method of making and design of the powerpole connector assembly 10. As the discussion above illustrates, the process for making this powerpole connector assembly 10 is very labor intensive and time consuming. For example, it can be difficult for the end user to train cables 12(1)-12(8), particularly larger sized cables, through the housing 14 to be connected to the powerpole connectors 16(1)-16(8). Additionally, it can be difficult for the end user to align the holes 19(1)-19(3) in the housing 14 with the holes 17(1)-17(3) in the block of powerpole connectors 16(1)-16(8) to insert the retaining pins 18(1)-18(3). These and other factors make the assembly of this device difficult and expensive.
In addition to the difficulties in making the powerpole connector assembly 10, the components used in making the powerpole connector housing 14 can also be difficult to manufacture. In particular, the holes 19(1)-19(3) in the housing 14 used to locate the retaining pins 18(1)-18(3) are very close to the edge of the housing 14 and to each other and thus are difficult to manufacture. Precise control of the molding process must be maintained, otherwise cracks and non-filled areas appear around the holes 19(1)-19(3) which can weaken the housing 14. This also adds to the overall cost to manufacture this types of prior powerpole connector assembly 10.
A connector assembly in accordance with embodiments of the present invention includes a housing and at least one connector. The housing defines a passage with first and second openings and with at least one inner surface with at least one groove. The connector has at least one outer surface with at least one projection. The projection detachably mates with the groove to secure the connector in the passage in the housing adjacent the first opening.
A method for making a connector assembly in accordance with embodiments of the present invention includes providing a housing which defines a passage with first and second openings and which has at least one inner surface with at least one of a groove. At least one connector is provided which has at least one outer surface with at least one projection. The projection is detachably mated with the groove to secure the connector in the passage in the housing adjacent the first opening.
A connector assembly housing in accordance with embodiments of the present invention includes a housing which defines a passage with first and second openings and at least one inner surface of the passage with at least one groove for mating with at least one connector with at least one outer surface that has at least one projection.
The present invention provides a powerpole connector assembly that is easier to assemble and maintain then prior powerpole connector assemblies and also provides positive latching, strain relief, and system grounding. The powerpole connectors can easily be attached and secured in the housing in a variety of configurations without the need to align and pass retaining pins through holes in the housing. Additionally, the housing provides enough space for easily training of larger gauge cables though the housing. Further, this powerpole connector assembly is compatible and mateable with existing powerpole connectors.
A connector assembly 20 in accordance with embodiments of the present invention is illustrated in
Referring more specifically to
Referring to
The connectors 28(1)-28(8) are each assembled into a 2×4 configuration with a projection 70(1) or 70(2) of connector 28(1) mated in a groove 72(1) or 72(2) of connector 28(5), a projection 70(1) or 70(2) of connector 28(2) mated in a groove 72(1) or 72(2) of connector 28(6), a projection 70(1) or 70(2) of connector 28(3) mated in a groove 72(1) or 72(2) of connector 28(7), and a projection 70(1) or 70(2) of connector 28(4) mated in a groove 72(1) or 72(2) of connector 28(8), although the connectors 28(1)-28(8) can be mated together in other manners.
Additionally, the connectors 28(1)-28(8) are inserted in the second opening of the passage 32(2) with a projection 70(1) or 70(2) of connector 28(1) slidaby mated in the groove 36(7), a projection 70(1) or 70(2) of connector 28(2) slidaby mated in the groove 36(8), a projection 70(1) or 70(2) of connector 28(3) slidaby mated in the groove 36(9), a projection 70(1) or 70(2) of connector 28(4) slidaby mated in the groove 36(10), a projection 70(1) or 70(2) of connector 28(5) slidaby mated in the groove 36(4), a projection 70(1) or 70(2) of connector 28(6) slidaby mated in the groove 36(3), a projection 70(1) or 70(2) of connector 28(7) slidaby mated in the groove 36(2), a projection 70(1) or 70(2) of connector 28(8) slidaby mated in the groove 36(1), although the connectors 28(1)-28(8) can be mated to one or more of the grooves 36(1)-36(12) of the passage 30 in other manners. The projections 70(1) or 70(2) of the connectors 28(1)-28(8) are slid along the grooves 36(1)-36(4) and 36(7)-36(10) until further slideable movement is not permitted. At this point of restricted movement, the connectors 28(1)-28(8) are mounted in the correct position in the housing 22. Although the projections 70(1) or 70(2) of the connectors 28(1)-28(4) are mated in the grooves 36(7)-36(10) and the projections 70(1) or 70(2) of the connectors 28(5)-28(8) are mated in the grooves 36(1)-36(4), the projections of one or more of the connectors could also be mated in other grooves, such as one or more of the grooves 36(5) and 36(6) in the inner surface 34(2) or one or more of the grooves 34(11) and 34(12) in the inner surface 34(3) of the passage 30. The projections and grooves on each of the connectors 28(1)-28(8) will be described in greater detail below with reference to the connectors 28(1), 28(2), 28(5), and 28(6) shown in
As shown in
Additionally, the mating ends of the connectors 28(1)-28(3) and 28(5) are oriented in a different direction from the mating ends of the connectors 28(4) and 28(6)-28(8) in the first opening 32(1), although one or more of the connectors 28(1)-28(8) could have other orientations. As a result, the connectors 28(1)-28(8) in the opening 32(1) of the housing 22 can be customized to a particular application based on the orientation of the connectors 28(1)-28(8). For example, changing the orientation of one or more of the mating ends of the connectors 28(1)-28(8) can be used to create a key so that the connector assembly 20 only can mate with connectors in an opening of another connector assembly with the same configuration.
Referring to
Referring to
Referring to
Referring to
The cover 24 is made of a plastic material, although other types of materials can be used for the cover 24, such as metal. If the cover 24 is made of a metallic material, the cover 24 can provide the connector assembly 20 with grounding which may be required for some applications.
Referring to
Referring to
The projections 70(1) and 70(2) on each of the connectors 28(1)-28(8) are each dovetail shaped and the grooves 72(1)-72(2) each have a substantially straight shape, although one or more of the projections 70(1) and 70(2) and/or the grooves 72(1)-72(2) could have other shapes in other orientations. As described earlier, with this configuration, one of the projections 70(1) or 70(2) of the connector 28(1)-28(8) can be slid along one of the grooves 36(1)-36(12) in the passage 30 or in one of the grooves 72(1) or 72(2) of another connector until further slideable movement is not permitted. At this point of restricted movement, the connector or connectors is/are mounted in the correct position in the passage 30 in housing 22 or with respect to the other connector(s) before mounting in the passage 30.
A genderless contact 76 is secured within the connector 28(1) with a genderless contact point 78 and an opening 80 to the contact 76 which can be crimped around one of the cables 49. Although a genderless contact 76 is shown, the connector 28(2) can have other configurations.
Referring to
The projections 70(1) and 70(2) on each of the connectors 28(9)-28(10) are each dovetail shaped and the grooves 72(1)-72(2) each have a substantially straight shape, although one or more of the projections 70(1) and 70(2) and/or the grooves 72(1)-72(2) could have other shapes in other orientations. As described earlier, with this configuration, one of the projections 70(1) or 70(2) of the connector 28(1)-28(10) can be slid along one of the grooves 36(1)-36(12) in the passage 30 or in one of the grooves 72(1) or 72(2) of another connector until further slideable movement is not permitted. At this point of restricted movement, the connector or connectors is/are mounted in the correct position in the passage 30 in housing 22 or with respect to the other connector(s) before mounting in the passage 30.
A female contact 86 is secured within the connector 28(9) and a male contact 88 is secured within the connector 28(10), although the connectors 28(9) and 28(10) could have other configurations. A cable can be coupled to the female contact 86 and the male contact 88. Like the pair of mated power pole connectors shown in
A method of making a connector assembly 20 in accordance with embodiments of the present invention will now be described with reference to
The projections of the connectors 28(1)-28(8) are dovetail shaped and are slid in their respective grooves 72(1) or 72(2) until further movement is restricted. The particular orientation of each of the connectors 28(1)-28(8) in the 2×4 configuration can be adjusted as desired.
Next, the projections on the connectors 28(1)-28(4) are slidably mated with the grooves 36(7)-36(10) and connectors 28(5)-28(8) are slidably mated with the grooves 36(1)-36(4) in the passage 30 in the housing 22. More specifically, the projections of the connectors 28(1)-28(8) are dovetail shaped and are slid in the grooves 36(1)-36(4) and 36(7)-36(10) until further movement is restricted. At this point the connectors 28(1)-28(8) are in the correct position in the passage 30 in the housing 22 adjacent the first opening 32(1).
Next, the lip 56 along one edge 58 of the cover 24 is mated with the indented section 38 along the inner surface 34(3) of the passage 30 facing the second opening 32(2) in the housing 22. Mating the lip 56 in the indented section 38 also presses the shelf 60 against an end of the connectors 28(1)-28(4) facing the second opening 32(2). This shelf 60 secures and prevents the projections of the connectors 28(1)-28(8) from sliding backwards towards second opening 32(2). Cover tabs 62(1) and 62(2) of cover 24 are also seated in slots 40(1) and 40(2) on opposing sides of another side 42(1) of the housing 22 and are used to detachable secure the cover 24.
Next, cable clamp 26 is mated with the cutout section 44 in the housing 22 and cable clamp tabs 54(1) and 54(2) are mated in the pockets 52(1) and 52(2). Once the cover 24 and cable clamp 26 are in place, a screw 48(1) is secured in the hole 46(1) which passes through a portion of the cover 24, the housing 22, and the cable clamp 26. Another screw 48(2) is secured in the hole 46(2) which passes through the cover 24, the housing 22, and the cable clamp 26. Securing the cover 24 and the cable clamp 26 to the housing 22 provides strain relief for the cables 49 coupled to the connectors 28(1)-28(8).
Having thus described the basic concept of the invention, it will be rather apparent to those skilled in the art that the foregoing detailed disclosure is intended to be presented by way of example only, and is not limiting. Various alterations, improvements, and modifications will occur and are intended to those skilled in the art, though not expressly stated herein. These alterations, improvements, and modifications are intended to be suggested hereby, and are within the spirit and scope of the invention. Additionally, the recited order of processing elements or sequences, or the use of numbers, letters, or other designations therefor, is not intended to limit the claimed processes to any order except as may be specified in the claims. Accordingly, the invention is limited only by the following claims and equivalents thereto.
This application claims the benefit of U.S. Provisional Patent Application Ser. No. 60/493,422 filed Aug. 7, 2003 which is hereby incorporated by reference in its entirety.
Number | Date | Country | |
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60493422 | Aug 2003 | US |