The disclosure relates generally to the field of contact members and electrical terminals that facilitate electrical connections between two electrically conductive structures. More particularly, the disclosure relates to a contact member and an electrical terminal for electrically conductive structures.
Electrical terminals are generally provided on a terminal end of an electrical conductor in an electrical system to complete a connection between one or more electrically operated devices and a source of electrical energy and/or other components of the electrical system. The electrical terminals facilitate the installation, service, and removal of these electrically operated devices to and from the electrical system.
Electrical terminals generally include a contact member that electrically connects a first electrically conductive structure and a second electrically conductive structure. For example, engagement of the first electrically conductive structure, such as an electrical blade, with the electrical terminal can be accomplished by inserting a portion of the first electrically conductive structure into an interspace defined by the contact member of the electrical terminal. Engagement with the second electrically conductive structure with the electrical terminal can be accomplished by crimping an end of the electrical terminal onto a portion of the second electrically conductive structure (e.g., an electrically conductive material). Such crimping is accomplished using of a variety of specialized tools and/or specialized methods. Contact members currently included in electrical terminals have various structural arrangements, resulting in a variety of current and retention performances. It is desirable to provide an improved structure for a contact member and an electrical terminal that includes a contact member such that a quick, easy, effective, and secure connection between two electrically conductive structures can be accomplished.
A need exists, therefore, for new and useful contact members and electrical terminals for electrically conductive structures.
Various example contact members and electrical terminals are described.
An example contact member has a first panel, a second panel, and an interspace defined between the first panel and the second panel. Each of the first and second panels has a plurality of posts. Each post of the plurality of posts has a plurality of slots and a contact point. Each slot of the plurality of slots is disposed adjacent to the contact point. Each post of the plurality of posts extends into the interspace such that the contact point is disposed within the interspace. Each post of the plurality of posts is moveable between a first position and a second position. In the first position, the contact point of each post of the plurality of posts of the first panel is disposed a first distance from the second panel. In the second position, the contact point of each post of the plurality of posts of the first panel is disposed a second distance from the second panel that is greater than the first distance.
An example electrical terminal has a terminal body portion, a housing, and a contact member. The housing extends from the terminal body portion and defines a hollow socket. The contact member is retained within the hollow socket. The contact member includes a first panel, a second panel, and defines an interspace between the first panel and the second panel. Each of the first and second panels has a plurality of posts. Each post of the plurality of posts has a plurality of slots and a contact point. Each slot of the plurality of slots is disposed adjacent to the contact point. Each post of the plurality of posts extends into the interspace such that the contact point is disposed within the interspace. Each post of the plurality of posts is moveable between a first position and a second position. In the first position, the contact point of each post of the plurality of posts of the first panel is disposed a first distance from the second panel. In the second position, the contact point of each post of the plurality of posts of the first panel is disposed a second distance from the second panel that is greater than the first distance.
Another example electrical terminal has a terminal body portion, a housing, and a contact member. The housing extends from the terminal body portion and defines a first opening, a second opening, and a hollow socket. Each of the first and second openings provides access to the hollow socket. The contact member is retained within the hollow socket. The contact member includes a first panel, a second panel, and defines an interspace between the first panel and the second panel. Each of the first and second panels has a plurality of posts. Each post of the plurality of posts has a plurality of slots, a contact point, a recess entirely surrounding the contact point, a projection, and a contact point recess. Each slot of the plurality of slots is disposed adjacent to the contact point and extends radially outward from the contact point. Each post of the plurality of posts extends into the interspace such that the contact point is disposed within the interspace. The projection entirely surrounds the contact point recess. Each post of the plurality of posts is moveable between a first position and a second position. In the first position, the contact point of each post of the plurality of posts of the first panel is disposed a first distance from the second panel. In the second position, the contact point of each post of the plurality of posts of the first panel is disposed a second distance from the second panel that is greater than the first distance.
Additional understanding of these examples can be obtained by review of the detailed description, below, and the appended drawings.
The following detailed description and the appended drawings describe and illustrate various example embodiments of a contact member and an electrical terminal. The description and illustration of these examples are provided to enable one skilled in the art to make and use a contact member and an electrical terminal according to this invention. They are not intended to limit the scope of the claims in any manner.
In the illustrated embodiment, the terminal body portion 16 extends from the first end 12 of the electrical terminal 10 towards the second end 14 and comprises first and second wings 24, 26 that are adapted to be crimped onto a first electrically conductive structure 28. As shown in
The housing 18 extends from the second end 14 of the electrical terminal 10 towards the first end 12 to the terminal body portion 16. The housing 18 includes a first plate 38, a second plate 40, a base plate 42, a first connecting arm 44, a second connecting arm 46, a first projection 48, a second projection 50, and defines a hollow socket 52, a first opening 54, and a second opening 56. As shown in
Each of the first and second projections 48, 50 is disposed on the first plate 38. Each of the first and second connecting arms 44, 46 defines a passageway 74 and extends from the top 62 of the second plate 40 toward the first plate 38 such that the first projection 48 is disposed within the passageway 74 defined by the first connecting arm 44 and the second projection 50 is disposed within the passageway 74 defined by the second connecting arm 46. While connecting arms 44, 46 and projections 48, 50 have been illustrated as connecting the first and second plates 38, 40, any suitable structure can be used to attach a first plate to a second plate. Alternatively, connecting arms can be omitted from a housing.
The hollow socket 52 is defined between the first plate 38 and the second plate 40 and has a hollow socket center 53, as shown in
The projection 68 defined by each of the first and second plates 38, 40 extends from the top 62, away from the bottom plate 42, and is sized to be received by a recess 116 defined by a top retaining arm 90 of the contact member 20, as described in more detail herein. Each of the first and second recesses 70, 72 defined by each of the first and second plates 38, 40 is elongated and extends from the inner surface 64 toward the outer surface 66. The first recess 70 is sized to receive a first side retaining arm 92 of the contact member 20 and the second recess 72 is sized to receive a second side retaining arm 94 defined by the contact member 20, as described in more detail herein. In the illustrated embodiment, the first and second recesses 70, 72 are disposed parallel to one another. However, in alternative embodiments, a recess can have any suitable structural arrangement and be disposed at any suitable angle relative to another recess.
While the terminal body portion 16 and the housing 18 have been illustrated as having a particular structural arrangement, a terminal body portion and a housing can have any suitable structural arrangement and be formed of any suitable material. Selection of a suitable structural arrangement can be based on various considerations, including the intended use of the electrical terminal of which the terminal body portion and the housing are a component. For example, while the terminal body portion has been illustrated as including first and second wings such that a crimped connection can be accomplished between the terminal body portion and an electrically conductive structure, alternative embodiments can utilize any suitable structure (e.g., electrical connectors) on a terminal body portion to accomplish attachment to an electrically conductive structure. Examples of materials considered suitable to form a terminal body portion and/or a housing include electrically conductive materials.
The contact member 20 is retained within the hollow socket 52 defined by the housing 18. As shown in
The top retaining arm 90 extends from the top 80 and defines a curve 112, a top retaining arm end 114, and a recess 116. The curve 112 extends from the top 80 about 180 degrees to the top retaining arm end 114. When assembled, the projection 68 of the first plate 38 is disposed within the recess 116 defined by the top retaining arm 90 of the first panel 84 and the projection 68 of the second plate 40 is disposed within the recess 116 defined by the top retaining arm 90 of the second panel 86. The first side retaining arm 92 extends from the first end 76 and defines a curve 118 and a first retaining arm end 120. The curve 118 extends from the first end 76 about 90 degrees to the first retaining arm end 120. When assembled, the first side retaining arm 92 of the first panel 84 is disposed in the first recess 70 of the first plate 38 and the first side retaining arm 92 of the second panel 86 is disposed in the first recess 70 of the second plate 40. The second side retaining arm 94 extends from the second end 78 and defines a curve 122 and a second retaining arm end 124. The curve 122 extends from the second end 78 about 90 degrees to the second retaining arm end 124. When assembled, the second side retaining arm 94 of the first panel 84 is disposed in the second recess 72 of the first plate 38 and the second side retaining arm 94 of the second panel 86 is disposed in the second recess 72 of the second plate 40.
While each of the first panel 84 and the second panel 86 has been illustrated as including a top retaining arm 90, a first side retaining arm 92, and a second side retaining arm 94, a panel of a contact member can include any suitable structure to accomplish attachment to a housing. For example, a panel of a contact member can include a top retaining arm, a first side retaining arm, and/or a second side retaining arm to accomplish attachment to a housing. While particular degrees of curvature have been described with respect to the curves 112, 118, 122 defined by the retaining arms 90, 92, 94, alternative embodiments can include a contact member that includes a retaining arm that defines a curve at any suitable degree of curvature such that attachment to a housing can be accomplished.
Each post of the plurality of posts 100 extends into the interspace 88 such that the contact point 104 is disposed within the interspace 88 and can contact an electrically conductive structure when the electrically conductive structure is positioned within the interspace 88. A first set of posts 126 of the plurality of posts 100 is disposed on the first panel 84 and a second set of posts 128 of the plurality of posts 100 is disposed on the second panel 86. Each post of the plurality of posts 100 is flexibly disposed on its respective panel 84, 86 such that each post of the plurality of posts 100 is moveable between a first position, as shown in
While each of the first and second panels 84, 86 has been illustrated as including nine posts positioned at particular locations, a panel of a contact member can include any suitable number of posts positioned at any suitable location. Selection of a suitable number of posts to include on a panel and a suitable location to position a post on a panel can be based on various considerations, such as the desired current performance and/or retention force intended to be imparted on an electrically conductive structure positioned within an interspace defined by a contact member. Examples of orientations considered suitable to position a plurality of posts include such that the posts are positioned in rows with an equal number of posts in each row, the posts are positioned in rows with a varying number of posts in each row, the posts are positioned in an orientation that generally represents a geometric shape, such as a square, rectangle, circle, oval, diamond, the posts are positioned in an orientation that generally represents a symbol, such as an X, and any other orientation considered suitable for a particular embodiment.
Each slot of the plurality of slots 102 extends from the inner surface 96 to the outer surface 98, extends through a projection of the plurality of projections 108, and is disposed adjacent to, and extends radially outward from, the contact point 104. Each slot of the plurality of slots 102 provides flexibility to the post of the plurality of posts 100 of which it is a component such that the post can move between its first and second positions. In the illustrated embodiment, each slot of the plurality of slots 102 is elongated and, as shown in
While each slot of the plurality of slots has been illustrated as having a particular structural arrangement and as being positioned at a particular location relative to a contact point, a slot can have any suitable structural arrangement and be positioned at any suitable location on a panel to provide flexibility to a post. Examples of structural arrangements considered suitable for a slot included on a post include slots that are elongated, circular, square, rectangular, and any other shape considered suitable for a particular embodiment. Examples of locations considered suitable to position a slot relative to a contact point include locations in which a slot is disposed on a projection, locations in which a slot is disposed only on a projection of a post, locations in which a first portion of a slot is disposed on a planar surface of a panel (e.g., first panel 84, second panel 86) and a second portion of the slot is disposed on a post (e.g., a projection), and any other location considered suitable for a particular embodiment.
In the illustrated embodiment, the contact point 104 defines a curved surface 134 that extends into the interspace 88 and is centrally disposed between the plurality of slots 102 and within the recess 106. The contact point 104 contacts an electrically conductive structure when it is positioned within the interspace 88 providing an electrical connection between the contact member 20 and the electrically conductive structure. As an electrically conductive structure is advanced into the interspace 88 the electrically conductive structure moves the post of the plurality of posts 100 from the first position to the second position. As shown in
The recess 106 extends from the inner surface 96, away from the interspace 88, and toward the housing 18. The recess 106 is defined by a curved surface 140 through which a portion of each slot of the plurality of slots 102 extends. In the illustrated embodiment, the recess 106 completely surrounds the contact point 104. However, in alterative embodiments, a recess can at least partially surround a contact point and/or the entirety, or no portion, of a slot can extend through a curved surface that defines a recess. Depending on the thickness of the material forming a contact member, in some embodiments a recess can be omitted from a post.
The projection 108 extends from the outer surface 98, away from the interspace 88, and toward the housing 18. The projection 108 defines a curved surface 142. In the embodiment illustrated, the projection 108 completely surrounds the contact point recess 110. However, in alterative embodiments, a projection can partially surround a contact point recess and/or be omitted from a post depending on the thickness of the material forming a contact member. The projection 108 contacts with the housing 18 when the contact member 20 is disposed within the hollow socket 52 to provide an electrical connect between the contact member 20 and the housing 18.
In the illustrated embodiment, the contact point recess 110 extends from the projection 108 and away from the housing 18 and is defined by a curved surface 144. In the illustrated embodiment, the contact point recess 110 is centrally located within the projection 108. However, in alterative embodiments, a contact point recess can be disposed at any suitable location relative to a projection or can be omitted from a contact member.
While the contact member 20 has been illustrated as having a particular structural arrangement, a contact member can have any suitable structural arrangement and be formed of any suitable material. Selection of a suitable structural arrangement for a contact member can be based on various considerations, including the intended use of the electrical terminal of which the contact member is a component. For example, while the contact member has been illustrated as including first and second panels, alternative embodiments can utilize any suitable number of panels to accomplish an electrical connection between the electrical terminal and an electrically conductive structure. Examples of materials considered suitable to form a contact member include electrically conductive materials.
To assemble the electrical terminal 10, the bottom 82 of the contact member 20 is positioned adjacent to the first opening 54 of the housing 18. Subsequently, an axial force is applied on the contact member 20 directed toward the housing 18 until the bottom 82 of the contact member 20 advances into the hollow socket 52 of the housing 18. The axial force is continued until the first side retaining arm 92 of the first panel 84 is disposed in the first recess 70 of the first plate 38, the second side retaining arm 94 of the first panel 84 is disposed in the second recess 72 of the first plate 38, the first side retaining arm 92 of the second panel 86 is disposed in the first recess 70 of the second plate 40, and the second side retaining arm 94 of the second panel 86 is disposed in the second recess 72 of the second plate 40. In addition, the axial force is continued until the projection 68 defined by the first plate 28 is disposed within the recess 116 defined by the top retaining arm 90 of the first panel 84 and the projection 68 defined by the second plate 40 is disposed within the recess 116 defined by the top retaining arm 90 of the second panel 84.
The electrical terminal 10 can be used in combination with an electrically conductive structure in multiple ways and the way in which the electrical terminal 10 is used depends on the position of the electrical terminal 10 relative to other components in the system and/or the position of the electrically conductive structure relative to the electrical terminal 10. For example, as shown in
To accomplish positioning the second electrically conductive structure 150 within the interspace 88 of the contact member 20, as shown in
To accomplish positioning the third electrically conductive structure 154 within the interspace 88 of the contact member 20, as shown in
Any suitable electrically conductive structure, having any suitable structural arrangement, and formed of any suitable material, can be used with in an electrical terminal. Selection of a suitable structural arrangement and material to form an electrically conductive structure can be based on various considerations, including the intended use of the electrical terminal. In the illustrated embodiment, the first electrically conductive structure 28 is a wire member 30 that includes an electrically conductive material 32 surrounded by an outer electrically non-conductive insulator 34 and each of the second and third electrically conductive structures 150, 154 is a flat male electrical blade formed of an electrically conductive material. As discussed above, electrical terminals are generally provided on a terminal end of an electrical conductor in an electrical system to complete a connection between one or more electrically operated devices and a source of electrical energy and/or other components of the electrical system. The electrically conductive structures 28, 150, 154 can be used for this purpose.
In the embodiment shown, the bottom 482 defines first and second passageways 483, 485, each of the first and second panels 484, 486 has a track 560 that partially extends around the plurality of posts 500, the plurality of posts 500 includes sixteen posts on each of the first and second panels 484, 486, and the plurality of slots 502 includes three slots on each post of the plurality of posts 500.
Each of the first and second passageways 483, 485 extends through the bottom 482 of the contact member 420. The first passageway 483 is sized to receive the third projection 465 of the housing 418, as shown in
The track 560 is defined by a projection 562 that extends from the inner surface 496 into the interspace 488 and a recess 564 that extends from the outer surface 498 toward the interspace 488. The track 560 provides an additional contact surface between the contact member 420 and an electrically conductive structure when the electrically conductive structure is disposed within the interspace 488. While the track 560 has been illustrated as partially surrounding the plurality of slots 500 and as having a particular structural arrangement, a track can be positioned at any suitable location on a contact member and have any suitable structural arrangement. For example, a track can entirely surround a plurality of posts and/or omit the inclusion of a recess.
In the illustrated embodiment, the housing 618 includes a first plate 638, a second plate 640, a base plate 642, a first connecting arm 644, a second connecting arm 646, a first projection 648, a second projection 650, and defines a hollow socket 652, a first opening 654, a second opening 656, a first plurality of projections 665 on the first plate 638, and a second plurality of projections 667 on the second plate 640. In the embodiment shown, each of the first and second plates 638, 640 omits the inclusion of a first and second recesses. Each projection of the first plurality of projections 665 extends from the inner surface 664 of the first plate 638 into the hollow socket 652 and each projection of the second plurality of projections 667 extends from the inner surface 664 of the second plate 640 into the hollow socket 652. Each projection of the first plurality of projections 665 is sized to be received by a passageway of the plurality of passageways 762 defined by the first panel 684 to retain the first panel 684 relative to the housing 618 (e.g., using a rivet). Each projection of the second plurality of projections 667 is sized to be received by a passageway of the plurality of passageways 762 defined by the second panel 686 to retain the second panel 686 relative to the housing 618 (e.g., using a rivet).
In the illustrated embodiment, the contact member 620 comprises a first panel 684 and a second panel 686. The first panel 684 is separate from, and free of, the second panel 686. The first and second panels 684, 686 cooperatively define an interspace 688 between the first and second panels 684, 686. In the embodiment illustrated, each of the first and second panels 684, 686 omits the inclusion of a top retaining arm, a first side retaining arm, and a second side retaining arm. Each of the first and second panels 684, 686 has a track 760 that extends entirely around the plurality of posts 700, a plurality of passageways 762, the plurality of posts 700 includes sixteen posts on each of the first and second panels 684, 686, and the plurality of slots 702 includes four slots on each post of the plurality of posts 700. The track 760 is defined by a projection 764 that extends from the inner surface 696 into the interspace 688 and a recess 766 that extends from the outer surface 698 toward the interspace 688. The track 760 provides an additional contact surface between the first and second panels 684, 686 and an electrically conductive structure when the electrically conductive structure is disposed within the interspace 688. Each passageway of the plurality of passageways 762 extends from the inner surface 696 to the outer surface 698.
A corner post 966 is disposed at each corner of the plurality of posts 900, two side posts 968 are disposed along each side of the plurality of posts 900 and between two corner posts 966, and four inside posts 970 are disposed between the corner posts 966 and the side posts 968. Each corner post 966 has two independent slots 972 and two shared slots 974. Each shared slot 974 is shared with a side post 968. Each side post 968 has one independent slot 976, one shared slot 974 shared with a corner post 966, and two shared slots 978. A first shared slot of the shared slots 978 is shared with a side post 968 and a second shared slot of the shared slots 978 is shared with an inside post 970. Each inside post 970 has two shared slots 978 shared with a side post 968 and two shared slots 980 shared with another inside post 970.
While the contact members 20, 220 described herein have been illustrated as being a component of an electrical terminal (e.g., electrical terminal 10), a contact member can optionally be provided independent of an electrical terminal such that it can be utilized in other components of an electrical system. Use of the electrical terminals described herein provide a mechanism for attaching an electrically conductive structure to an electrical terminal in multiple orientations relative to a housing of the electrical terminal, which reduces the complexity and time required to make an electrical connection between an electrical terminal and an electrically conductive structure.
The illustration of any component, element, or feature as being disposed above, below, left of, or right of another component, element, or feature is only with reference to the relative location of the components, elements, and features as shown in the figures in order to aid in describing the electrical terminals and contact members. Accordingly, the components, elements, or features illustrated and described herein can be oriented in any manner desired without departing from the spirit or scope of the invention.
Those with ordinary skill in the art will appreciate that various modifications and alternatives for the described and illustrated embodiments can be developed in light of the overall teachings of the disclosure, and that the various elements and features of one example described and illustrated herein can be combined with various elements and features of another example without departing from the scope of the invention. Accordingly, the particular examples disclosed herein have been selected by the inventor(s) simply to describe and illustrate examples of the invention and are not intended to limit the scope of the invention or its protection, which is to be given the full breadth of the appended claims and any and all equivalents thereof.
Number | Date | Country | Kind |
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202111670153.3 | Dec 2021 | CN | national |