TECHNICAL FIELD OF INVENTION
This disclosure generally relates to an electrical connector-assembly, and more particularly relates to an electrical connector-assembly with a primary-lock-reinforcement device that has a shipping-position.
BRIEF DESCRIPTION OF DRAWINGS
The present invention will now be described, by way of example with reference to the accompanying drawings, in which:
FIG. 1 is an exploded perspective view illustrating a connector-assembly in accordance with one embodiment;
FIG. 2A is a perspective end-view of a primary-lock-reinforcement device isolated from the assembly of FIG. 1 in accordance with one embodiment;
FIG. 2B is an end-view of the primary-lock-reinforcement device of FIG. 2A in accordance with one embodiment;
FIG. 3 is a section view of a connector-housing of the connector-assembly of FIG. 1 in accordance with one embodiment;
FIG. 4A is a section view of the connector-housing and the primary-lock-reinforcement device of FIG. 1 in accordance with one embodiment;
FIG. 4B is another section view of the connector-housing and the primary-lock-reinforcement device of FIG. 1 in accordance with one embodiment;
FIG. 5 is yet another section view of the connector-housing and the primary-lock-reinforcement device of FIG. 1 in accordance with one embodiment;
FIG. 6 is another section view of the connector-housing of the connector-assembly of FIG. 1 in accordance with one embodiment;
FIG. 7A is a terminal-end view of the connector-housing and the primary-lock-reinforcement device of FIG. 4A in accordance with one embodiment;
FIG. 7B is a terminal-end view of the connector-housing and the primary-lock-reinforcement device of FIG. 4B in accordance with one embodiment; and
FIG. 8 is a section view of a portion of the connector-housing and the primary-lock-reinforcement device of FIG. 5 in accordance with one embodiment.
DETAILED DESCRIPTION
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the various described embodiments. However, it will be apparent to one of ordinary skill in the art that the various described embodiments may be practiced without these specific details. In other instances, well-known methods, procedures, components, circuits, and networks have not been described in detail so as not to unnecessarily obscure aspects of the embodiments.
FIG. 1 is an exploded view illustrating a connector-assembly 10. As will be described in more detail below, the connector-assembly 10 is an improvement over prior art connector assemblies, because the connector-assembly 10 maintains a position of its components during shipping and handling and inhibits inadvertent and/or premature movement of locking features. The connector-assembly 10 includes one or more electrical-terminals 12, hereafter referred to as the terminals 12, configured to mate with one or more corresponding electrical-terminals (not shown) along a mating-axis 14 of the connector-assembly 10. The terminals 12 are formed of an electrically conductive material, such as a copper-based alloy that may also include a coating of another conductive material (e.g. a tin-based or silver-based coating). The terminals 12 are configured to be attached to wire cables (not shown) that may be a component of a wiring-harness of a vehicle.
The connector-assembly 10 also includes a connector-housing 16 configured to retain the terminals 12 within one or more terminal-cavities 18, hereinafter referred to as terminal-cavities 18 defined by a terminal-tower 20 disposed within the connector-housing 16. The connector-housing 16 is formed of a polymeric dielectric material. The polymeric dielectric material may be any polymeric dielectric material capable of electrically isolating portions of the terminals 12, and is preferably a polyamide (NYLON) material.
The connector-assembly 10 also includes a primary-lock-reinforcement device 22 (PLR-device 22) configured to slideably engage the terminal-tower 20. The PLR-device 22 is preferably formed of the same polymeric dielectric material as the connector-housing 16, but may be any polymeric dielectric material. The PLR-device 22 is moveable from a shipping-position 24 to a pre-stage position 26, as will be explained in more detail below.
FIGS. 2A-2B illustrate the PLR-device 22 isolated from the connector-assembly 10 of FIG. 1. As illustrated in FIG. 2A, the PLR-device 22 has a base 28 and a skirt 30 extending beyond the base 28 along the mating-axis 14. The base 28 defines one or more apertures 32, hereafter referred to as the apertures 32, through which the corresponding electrical-terminals pass. As illustrated in FIG. 2B, the PLR-device 22 has a post 34 extending beyond an inner-surface 36 of the skirt 30. In one embodiment, the PLR-device 22 includes a single post 34. In the embodiment illustrated in FIG. 2B, the PLR-device 22 includes a plurality of posts 34 having a generally square-shape. In another embodiment, the posts 34 have a generally cylindrical-shape. The posts 34 are configured to engage a corresponding L-shaped slot 38 defined by an outer-surface 40 of the terminal-tower 20, as will be described in more detail below.
FIG. 3 is a section view of the connector-housing 16 illustrating the L-shaped slot 38. The L-shaped slot 38 has a first-leg 42 and a second-leg 44. The first-leg 42 defines a stop 46 configured to inhibit a removal of the PLR-device 22 from the terminal-tower 20 when the PLR-device 22 is in the shipping-position 24 (see FIG. 4A). That is, the post 34 on the PLR-device 22 is retained by the stop 46 and inhibits the PLR-device 22 from being moved away from a terminal-end 48 of the connector-housing 16. The first-leg 42 further defines a wall 50 configured to inhibit a movement of the PLR-device 22 along the mating-axis 14 and maintains the PLR-device 22 in the shipping-position 24. In other words, the PLR-device 22 is held in the shipping-position 24 with the post 34 retained between the stop 46 and the wall 50, permitting only movement in a lateral-direction 52 toward a centerline of the connector-housing 16. For the purposes of illustration, the centerline of the connector-housing 16 is shown as the mating-axis 14 in FIG. 3.
FIGS. 4A-4B illustrate an interaction between the post 34 and the L-shaped slot 38 when the PLR-device 22 is moved in the lateral-direction 52 from the shipping-position 24 (FIG. 4A) to the pre-stage position 26 (FIG. 4B). The post 34 aligns with an entrance 54 (see FIG. 3) to the second-leg 44, thereby enabling the PLR-device 22 to move from the pre-stage position 26 to a full-stage position 56 (see FIG. 5).
Referring back to FIG. 2B, the PLR-device 22 further includes a rib 58 extending beyond the inner-surface 36 of the skirt 30 parallel to the mating-axis 14. The rib 58 is disposed in a corresponding first-groove 60 defined by the outer-surface 40 of the terminal-tower 20 (located on an opposite side of the terminal-tower 20 from the L-shaped slot 38) as illustrated in FIG. 6. When the PLR-device 22 is moved from the shipping-position 24 to the pre-stage position 26, the rib 58 on the PLR-device 22 is disposed into (i.e. moved into) a corresponding second-groove 62, thereby providing a vibratory-feedback to an assembler (see FIG. 7B). The vibratory-feedback has the technical benefit of alerting the assembler that the PLR-device 22 is in the pre-stage position 26. In the examples illustrated in FIG. 2B and FIG. 6, the PLR-device 22 includes a plurality of ribs 58 disposed in a plurality of first-grooves 60 and a plurality of second-grooves 62. The ribs 58 may have a generally V-shape (see FIG. 2B), or have a generally rounded-shape. Referring back to FIG. 6, the first-groove 60 and the second-groove 62 are characterized by an open-end 66 and a closed-end 68. The open-end 66 receives the rib 58 of the PLR-device 22 during an assembly operation, and the closed-end 68 inhibits movement of the PLR-device 22 along the mating-axis 14.
FIG. 8 is a section view along the mating-axis 14 of a portion of the connector-housing 16 and the PLR-device 22 of FIG. 5 in the full-stage position 56. The second-leg 44 of the L-shaped slot 38 includes an inertial-detent 70 positioned at the entrance 54 to the second-leg 44, whereby another vibratory-feedback is provided to the assembler as the post 34 travels over the inertial-detent 70 when the PLR-device 22 is moved from the pre-stage position 26 to the full-stage position 56. This vibratory-feedback is has the technical benefit of alerting the assembler that the PLR-device 22 is in the full-stage position 56.
Referring again to FIG. 2B, the PLR-device 22 further includes a locking-tab 72 extending beyond the inner-surface 36 of the skirt 30. The locking-tab 72 is sildeably-disposed within a first-locking-trough 74 defined by the outer-surface 40 of the terminal-tower 20 when the PLR-device 22 is in the shipping-position 24 (see FIG. 4A). The first-locking-trough 74 is configured to enable the PLR-device 22 to move in the lateral-direction 52 between the shipping-position 24 and the pre-stage position 26.
Referring back to FIG. 5, the locking-tab 72 is disposed within a second-locking-trough 76 defined by the outer-surface 40 of the terminal-tower 20 when the PLR-device 22 is moved from the pre-stage position 26 to the full-stage position 56, and also provides the assembler with yet another vibratory-feedback indicating that the PLR-device 22 is in the full-stage position 56.
Referring again to FIGS. 4A-4B, the base 28 of the PLR-device 22 includes a beam 78 extending beyond the base 28 parallel with the skirt 30. The beam 78 engages a shoulder 80 defined by the terminal-tower 20 such that the PLR-device 22 is inhibited from moving along the mating-axis 14 when the PLR-device 22 is in the shipping-position 24. The skirt 30 also defines a leading-edge 82 opposite the beam 78 that engages the shoulder 80 on the opposite side of the terminal-tower 20 such that the PLR-device 22 is also inhibited from moving along the mating-axis 14 when the PLR-device 22 is in the shipping-position 24. A lateral-force 84 applied to the PLR-device 22 of between about 30-Newtons and about 45-Newtons is required to move the PLR-device 22 from the shipping-position 24 to the pre-stage position 26. It will be appreciated that the PLR-device 22 must be in either the shipping-position 24 or the pre-stage position 26 before inserting the terminals 12 into the terminal-cavities 18. It will also be appreciated that if the PLR-device 22 is inadvertently moved to the full-stage position 56, as can result during shipping and handling, the assembler will be inhibited from fully inserting the terminals 12 into the connector-housing 16.
A longitudinal-force 86 applied to the PLR-device 22 of between about 20-Newtons and about 45-Newtons is required to move the PLR-device 22 from the pre-stage position 26 to the full-stage position 56 when the terminals 12 are fully seated in the terminal-cavities 18. When the terminals 12 are not fully seated in the terminal-cavities 18, the longitudinal-force 86 applied to the PLR-device 22 of greater than or equal to 60-Newtons is required to move the PLR-device 22 from the pre-stage position 26 to the full-stage position 56. In another embodiment, the longitudinal-force 86 required to move the PLR-device 22 from the pre-stage position 26 to the full-stage position 56 (when the terminals 12 are not fully seated in the terminal-cavities 18) is twice the measured value of longitudinal-force 86 required to move the PLR-device 22 from the pre-stage position 26 to the full-stage position 56 when the terminals 12 are fully seated, providing a sufficient contrast in the required longitudinal-force 86 for the assembler to differentiate between seated and non-seated terminals 12.
Accordingly, a connector-assembly 10 is provided. The connector-assembly 10 is an improvement over prior art connector-assemblies because the connector-assembly 10 includes the PLR-device 22 that resists movement from the shipping-position 24 until a lateral-force 84 is applied to the PLR-device 22.
While this invention has been described in terms of the preferred embodiments thereof, it is not intended to be so limited, but rather only to the extent set forth in the claims that follow. “One or more” includes a function being performed by one element, a function being performed by more than one element, e.g., in a distributed fashion, several functions being performed by one element, several functions being performed by several elements, or any combination of the above. It will also be understood that, although the terms first, second, etc. are, in some instances, used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first contact could be termed a second contact, and, similarly, a second contact could be termed a first contact, without departing from the scope of the various described embodiments. The first contact and the second contact are both contacts, but they are not the same contact. The terminology used in the description of the various described embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the description of the various described embodiments and the appended claims, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term “and/or” as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will be further understood that the terms “includes,” “including,” “comprises,” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term “if” is, optionally, construed to mean “when” or “upon” or “in response to determining” or “in response to detecting,” depending on the context. Similarly, the phrase “if it is determined” or “if [a stated condition or event] is detected” is, optionally, construed to mean “upon determining” or “in response to determining” or “upon detecting [the stated condition or event]” or “in response to detecting [the stated condition or event],” depending on the context. Directional terms such as top, bottom, upper, lower, left, right, front, rear, etc. do not denote any particular orientation, but rather these directional terms are used to distinguish one element from another and establish a relationship between the various elements.
Patent Grant
10418742
