This invention generally relates to connectors and, more particularly, to a finger proof, keyed power connector
Systems often need different high voltage power supplies, e.g. 24 volt, 48 volt, 96 volt, or 192 volt power supplies, coupled to different inputs to various components, such as parts, modules, and circuits, in these systems. Unfortunately, one problem which can occur is having one of these high voltage power supplies coupled to the wrong component. When this type of mistake occurs, the damage to the component and system can be severe.
A finger proof, keyed connector in accordance with embodiments of the present invention includes a housing, one or more interface passages formed in the housing, one or more connector passages formed in the housing, and an electrical contact. Each of the interface passages has an outer perimeter where at least one portion of the outer perimeter is spaced in or spaced out from at least one adjacent portion of the outer perimeter. Each of the connector passages is connected to one of the interface passages. The electrical contact is seated in each of the one or more interface passages, is spaced from an opening to each of the interface passages, and extends in to the connector passage.
A method for making a finger proof, keyed connector includes forming one or more interface passages in a housing. Each of the interface passages has an outer perimeter where at least one portion of the outer perimeter is spaced in or spaced out from at least one adjacent portion of the outer perimeter. One or more connector passages are formed in the housing and each of the connector passages is connected to one of the interface passages. An electrical contact is provided in each of the one or more interface passages, is spaced from an opening to each of the interface passages, and extends in to the connector passage.
The present invention provides a power connector with a keyed configuration to assure the proper connection of a particular power source to a particular component. With the power connector, a large number of combinations are available for voltage, circuit, or application specific keying. Additionally, the power connector has hot plugging capability which helps to minimize downtime of electric and electronic equipment. Further, the present invention provides a power connector with a safer finger proof design, a smaller size when compared to prior plugs to overcome space constraints, and a low insertion and extraction force for easy plugging and unplugging of power to components.
A finger proof, keyed power connector 10(1) in accordance with embodiments of the present invention is illustrated in
Referring to
A pair of mounting holes 22(1) and 22(2) extend through a pair of the opposing side walls 20(1) and 20(3) in the housing and are used with a pair of fasteners (not shown), such as screws or bolts, to mount the power connector 10, although other numbers of mounting holes and other ways for securing the connector can be used. The housing 12 also can be wire or panel mountable, as well as stackable, using the two mounting holes 22(1) and 22(2).
Referring to
Referring to
Referring to
The openings to the interface passages 18(1) and 18(2) are sized to create finger proof barriers, i.e. smaller than the outer dimensions of the fingers of an individual, to prevent an operator's fingers from accidentally touching either of the energized contacts 16(1) and 16(2). Additionally, the electrical contacts 16(1) and 16(2) are located inside and spaced from an opening to each of the interface passages 18(1) and 18(2) to also prevent an operator from accidentally contacting either of the energized contacts 16(1) and 16(2).
Each of the interface passages 18(1) and 18(2) has a generally square configuration, although the interface passages could have other shapes and configurations for the outer perimeter. The interface passage 18(1) and the mating interface 19(1) has sections 34(1)–34(4) and the interface passage 18(2) and the mating interface 19(2) has sections 36(1)–36(4), although the interface passage 18(1) and mating interface 19(1), and interface passage 18(2) and mating interface 19(2) could have other numbers and types of sections.
With respect to interface passage 18(1) and mating interface 19(1), the section 34(1) has an indented portion 36(1) adjacent a substantially straight portion 36(2). The section 34(2) has a substantially straight portion 36(3) between substantially straight portion 36(2) and indented portion 36(4). The section 34(3) has a substantially straight portion 36(5) between the indented portion 36(4) and the indented portion 36(6). The section 34(4) has a substantially straight portion 36(7) between the indented portion 36(6) and a protruded portion 36(8).
The interface passage 18(2) with the mating interface 19(2) is a mirror image of the interface passage 18(1) with the mating interface 19(1) with the same number and types of sections and portions as described with reference to interface passage 18(1) and mating interface 19(1), although the interface passage 18(1) and mating interface 19(1), and interface passage 18(2) and mating interface 19(1) could have different or identical configurations.
Referring to
Each of the interface passages 18(3) and 18(4) has a generally square configuration, although the interface passages could have other shapes and configurations for the outer perimeter. The interface passage 18(3) and the mating interfaces 19(3) has sections 38(1)–38(4) and the interface passage 18(4) and the mating interfaces 19(4) has sections 40(1)–40(4), although the interface passage 18(3) and mating interface 19(3), and interface passage 18(4) and mating interface 19(4) each could have other numbers and types of sections with other numbers and types of portions in other configurations.
With respect to interface passage 18(3) and mating interface 19(3), the section 38(1) has an indented portion 42(1) adjacent a substantially straight portion 42(2). The section 38(2) has an indented portion 42(3) between the substantially straight portion 42(2) and a protruded portion 42(4) and also has a substantially straight portion 42(5) between the protruded portion 42(4) and an indented portion 42(6). The section 38(3) has a substantially straight portion 42(7) between the indented portion 42(6) and an indented portion 42(8). The section 38(4) has substantially straight portion 42(9) between the indented portion 42(8) and a protruded portion 42(10).
With respect to interface passage 18(4) and mating interface 19(4), the section 40(1) has a substantially straight portion 44(1) adjacent an indented portion 44(2). The section 40(2) has a protruded portion 44(3) between the indented portion 44(2) and a substantially straight portion 44(4). The section 40(3) has an indented portion 44(5) between the substantially straight portion 44(4) and the substantially straight portion 44(6). The section 40(4) has an indented portion 44(7) between the substantially straight portion 44(6) and a substantially straight portion 44(8
Referring to
Each of the interface passages 18(5) and 18(6) has a generally square configuration, although the interface passages could have other shapes and configurations for the outer perimeter. The interface passage 18(5) and mating interface 19(5) has sections 46(1 )–46(4) and the interface passage 18(6) and mating interface 19(6) has sections 49(1)–49(4), although the interface passage 18(5) and mating interface 19(5), and interface passage 18(6) and mating interface 19(6) each could have other numbers and types of sections with other numbers and types of portions in other configurations.
With respect to interface passage 18(5) and mating interface 19(5), the section 46(1) has an indented portion 48(1) adjacent a substantially straight portion 48(2). The section 46(2) has a substantially straight portion 48(3) between substantially straight portion 48(2) and indented portion 48(4). The section 46(3) has a substantially straight portion 48(5) between the indented portion 48(4) and the indented portion 48(6). The section 46(4) has a substantially straight portion 48(7) between the indented portion 46(6) and a protruded portion 46(8).
With respect to interface passage 18(6) and mating interface 19(6), the section 49(1) has a substantially straight portion 50(1) adjacent an indented portion 50(2). The section 49(2) has a protruding portion 50(3) between the indented portion 50(2) and a substantially straight portion 50(4). The section 49(3) has an indented portion 50(5) between the substantially straight portion 50(6) and the substantially straight portion 50(7). The section 49(4) has an indented portion 50(7) between the substantially straight portion 50(6) and the substantially straight portion 50(8). The section 49(4) also has a protruding portion 50(9) between the substantially straight portion 50(8) and an indented portion 50(10).
Referring to
Each of the interface passages 18(7) and 18(8) has a generally square configuration, although the interface passages could have other shapes and configurations for the outer perimeter. The interface passage 18(7) and mating interface 19(7) has sections 52(1)–52(4) and the interface passage 18(8) and mating interface 19(7) has sections 54(1)–54(4), although the interface passage 18(7) and mating interface 19(7), and interface passage 18(8) and mating interface 19(8) each could have other numbers and types of sections with other numbers and types of portions in other configurations.
With respect to interface passage 18(7) and mating interface 19(7), the section 52(1) has an indented portion 56(1) adjacent a substantially straight portion 56(2). The section 52(2) has substantially straight portions 56(3) and 56(4) which are separated by an intermediary passage 53 which connects interface passages 18(7) and 18(8). The section 52(3) has a substantially straight portion 56(5) between the substantially straight portion 56(4) and an indented portion 56(6). The section 52(4) has substantially straight portion 56(7) between the indented portion 56(6) and a protruded portion 56(8).
With respect to interface passage 18(8) and mating interface 19(8), the interface passage 18(8) is a mirror image of the interface passage 18(7). More specifically, section 54(1) with portions 58(1)–58(2) is a mirror image of section 52(1) with portions 56(1)–56(2). The section 54(2) with portions 58(3)–58(4) is a mirror image of section 52(4) with portions 56(7)–56(8). The section 54(3) with portions 58(5)–58(6) is a mirror image of section 52(3) with portions 56(5) and 56(6). The section 54(4) with portions 58(7)–58(8) is a mirror image of section 52(2) with portions 56(3)–56(4).
Referring to
Each of the interface passages 18(9) and 18(10) has a generally square configuration, although the interface passages could have other shapes and configurations for the outer perimeter. The interface passage 18(9) and mating interface 19(9) has sections 60(1)–60(4) and the interface passage 18(10) and mating interface 19(10) has sections 62(1)–62(4), although the interface passage 18(9) and mating interface 19(9), and interface passage 18(10) and mating interface 19(10) each could have other numbers and types of sections with other numbers and types of portions in other configurations.
With respect to interface passage 18(9) and mating interface 19(9), the section 60(1) has a substantially straight portion 64(2) between indented portions 64(1) and 64(3). The section 60(2) has a protruded portion 64(4) between indented portion 64(3) and substantially straight portion 64(5). The section 60(3) a substantially straight portion 64(7) between indented portions 64(6) and 64(8) and the indented portion 64(6) is also adjacent substantially straight portion 64(5). The section 60(4) has a substantially straight portion 64(9) between the indented portion 64(8) and the protruded portion 64(10).
The interface passage 18(10) with mating interface 19(10) is identical to interface passage 18(9) with mating interface 19(9). More specifically, section 62(1) is the same as section 60(1), section 62(2) is the same as section 60(2), section 62(3) is the same as section 60(3), and section 62(4) is the same as section 60(4).
Referring to
Each of the interface passages 18(11) and 18(12) has a generally square configuration, although the interface passages could have other shapes and configurations for the outer perimeter. The interface passage 18(11) and mating interface 19(11) has sections 66(1)–66(4) and the interface passage 18(12) and mating interface 19(12) has sections 68(1)–68(4), although the interface passage 18(11) and mating interface 19(11), and interface passage 18(12) and mating interface 19(12) each could have other numbers and types of sections with other numbers and types of portions in other configurations.
The interface passage 18(11) with mating interface 19(11) is identical to interface passage 18(9) with mating interface 19(9) described earlier with reference to
With respect to interface passage 18(12) and mating interface 19(12), the section 68(1) has an indented section 70(1) adjacent another less indented portion 70(2). The section 68(1) also has a substantially straight portion 70(3) which is between the indented portion 70(2) and an indented portion 70(4). The section 68(2) has a protruded portion 70(5) between the indented portion 70(4) and substantially straight portion 70(6). The section 68(3) a substantially straight portion 70(8) between indented portions 70(7) and 70(9). The section 68(3) also has another indented portion 70(10) adjacent the indented portion 70(9).
The section 68(4) has a substantially straight portion 70(11) between the indented portion 70(10) and a protruded portion 70(12).
Referring to
Each of the interface passages 18(13) and 18(14) has a generally square configuration, although the interface passages could have other shapes and configurations for the outer perimeter. The interface passage 18(13) and mating interface 19(13) has sections 72(1)–72(4) and the interface passage 18(14) and mating interface 19(14) has sections 74(1)–74(4), although the interface passage 18(13) and mating interface 19(13), and interface passage 18(14) and mating interface 19(14) each could have other numbers and types of sections with other numbers and types of portions in other configurations.
The interface passage 18(13) is a mirror image of the interface passage 18(12) with the same number and types of sections and portions as described earlier with reference to
The interface passage 18(14) and mating interface 19(14) is identical to interface passage 18(9) and mating interface 19(9). More specifically, section 74(1) is the same as section 60(1), section 74(2) is the same as section 60(2), section 74(3) is the same as section 60(3), and section 74(4) is the same as section 60(4).
Referring to
Each of the interface passages 18(15) and 18(16) has a generally square configuration, although the interface passages could have other shapes and configurations for the outer perimeter. The interface passage 18(15) and mating interface 19(15) has sections 76(1)–76(4) and the interface passage 18(16) and mating interface 19(16) has sections 78(1)–78(4), although the interface passage 18(15) and mating interface 19(15), and interface passage 18(16) and mating interface 19(16) each could have other numbers and types of sections with other numbers and types of portions in other configurations.
The interface passage 18(15) and mating interface 19(15) is identical to the interface passage 18(9) and mating interface 19(9) described earlier with reference to
The interface passage 18(16) and mating interface 19(6) also is identical to the interface passage 18(9) and mating interface 19(9) described earlier with reference to
As the above described exemplary embodiments have illustrated, a variety of different combinations of shapes for the outer perimeter or periphery of the interface passages 18(1)–18(16) and mating interfaces 19(1)–19(16). With these keyed configurations for the outer perimeter of the interface passages, a system can be built which will assure the proper connection of a particular power source to a particular component.
Additional configurations within the passages can be used for additional keying combinations, thus multiplying the mating combinations for additional voltage, circuit, or specific application versions.
Referring to
If the input connectors do not have the same configuration as the configuration of the outer perimeter of the interface passages 18(1) and 18(2), then the input connectors can not be mated into the interface passages 18(1) and 18(2) and thus can not be coupled to the electrical contacts 16(1) and 16(2). As a result, damage to the system caused by an incorrectly coupled power supply can be avoided.
With the present invention, the electrical contacts 16(1) and 16(2) are spaced within and away from the openings to the interface passages 18(1) and 18(2) and the dimensions of the interface passages 18(1) and 18(2) are sized to be finger proof to prevent accidental contact by an operator.
Since the operation of the finger proof, keyed power connectors 10(2)–10(8) is identical to the operation of the finger proof, keyed power connector 10(1), except that different input connectors will be able to mate with different interface passages 18(3)–18(16) and will be prevented from mating with other interface passages 18(3)–18(6) depending on the particular configurations of the input connectors and the interface passages 18(3)–18(16), the operation of finger proof, keyed power connectors 10(2)–10(8) will not be described.
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 therefore, 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. 60/429,977 filed Nov. 27, 2002 which is herein incorporated by reference in its entirety.
Number | Name | Date | Kind |
---|---|---|---|
3654586 | Winkler | Apr 1972 | A |
4695112 | Maston et al. | Sep 1987 | A |
4915641 | Miskin et al. | Apr 1990 | A |
4990099 | Marin et al. | Feb 1991 | A |
5167542 | Haitmanek | Dec 1992 | A |
6089898 | Lincoln et al. | Jul 2000 | A |
6383032 | Gerberding | May 2002 | B1 |
Number | Date | Country | |
---|---|---|---|
20040171309 A1 | Sep 2004 | US |
Number | Date | Country | |
---|---|---|---|
60429977 | Nov 2002 | US |