Patent Application
20220029336
Achieving the desired terminal retention forces for miniaturized coaxial connectors is very difficult due to low profile geometries required of the primary and secondary terminal locking features and the terminal position assurance devices. Due to the circular geometry of the coaxial cavity, it is difficult for the secondary locking feature to overlap with the terminal. Therefore, a coaxial connector that addresses these shortcomings is desired.
The subject matter discussed in the background section should not be assumed to be prior art merely because of its mention in the background section. Similarly, a problem mentioned in the background section or associated with the subject matter of the background section should not be assumed to have been previously recognized in the prior art. The subject matter in the background section merely represents different approaches, which in and of themselves may also be inventions.
According to one embodiment of the invention, a connector assembly is provided. The connector assembly includes a connector housing defining a cavity, a cylindrical terminal disposed within the cavity, a primary terminal locking feature configured to retain the cylindrical terminal within the cavity, and a secondary terminal locking feature configured to retain the cylindrical terminal within the cavity. The secondary terminal locking feature has a pair of arms defining concave features that engage the cylindrical terminal as the concave features are wedged between the cylindrical terminal and inner walls of the cavity.
In an example embodiment having one or more features of the connector assembly of the previous paragraph, the concave features are wedged between the cylindrical terminal and inner walls of the cavity as the secondary terminal locking feature is moved from a pre-staged position to a staged position.
In an example embodiment having one or more features of the connector assembly of any one the previous paragraphs, the inner walls of the cavity form a ramp configured to deflect the pair of arms in an axial direction toward the cylindrical terminal as the secondary terminal locking feature is moved from the pre-staged position to the staged position.
In an example embodiment having one or more features of the connector assembly of any one the previous paragraphs, the secondary terminal locking feature is configured to bias the cylindrical terminal toward a forward stop when in the staged position.
In an example embodiment having one or more features of the connector assembly of any one the previous paragraphs, a radius of the concave features is substantially equal to an outer radius of the cylindrical terminal.
In an example embodiment having one or more features of the connector assembly of any one the previous paragraphs, the secondary terminal locking feature defines pre-locking features configured to secure the secondary terminal locking feature to the connector housing in a pre-staged position.
In an example embodiment having one or more features of the connector assembly of any one the previous paragraphs, the connector housing is configured to contain a male connector or a female connector.
In an example embodiment having one or more features of the connector assembly of any one the previous paragraphs, the connector housing is configured to contain two or four cylindrical terminals.
In an example embodiment having one or more features of the connector assembly of any one the previous paragraphs, the cylindrical terminal is a coaxial terminal.
In an example embodiment having one or more features of the connector assembly of any one the previous paragraphs, the cylindrical terminal is a coaxial electrical terminal and is attached to a coaxial electrical cable.
According to one embodiment of the invention, a coaxial electrical connector assembly is provided. The coaxial electrical connector assembly includes a connector housing defining a cavity, a cylindrical coaxial terminal attached to a coaxial cable that is disposed within the cavity, a primary means for retaining the cylindrical terminal within the cavity, and a secondary means for retaining the cylindrical terminal within the cavity movable from a pre-staged position to a staged position and having concave features that are wedged between the cylindrical terminal and inner walls of the cavity when in the staged position.
The present invention will now be described, by way of example with reference to the accompanying drawings, in which:
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 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.
A coaxial connector assembly that provides a solution to overcome the issues described in the BACKGROUND section by clamping the terminal around its circular geometry while reinforcing the terminal cavity primary locking feature and pushing the terminal toward a forward stop via a wedging action is presented herein. The coaxial connector assembly includes an integrated secondary lock (ISL) feature that has greater overlap with the coaxial terminal and is supported by a wedging action along a lateral axis of the connector. The ISL pushes the coaxial terminal in an axial mating direction to arrest the gap between a flexible primary locking feature in the cavity and a forward stop supported by a ramp wedge arrangement in the cavity. The ISL is integrated with a primary lock reinforcement (PLR) feature. The ISL backs up the terminal cavity primary locks when moved to final staged position. The wedging action of the ISL in the axial mating direction reduces or eliminates the load transferred to the primary locking feature in the cavity by the terminal during contact engagement.
A nonlimiting example of an embodiment of the coaxial connector assembly 10 is illustrated in
As can be seen in
As shown in
The example presented herein is directed to a coaxial electrical connector assembly 10. However, alternative embodiments of the connector assembly may be envisioned to connect fiber optic cables, pneumatic tubes, hydraulic tubes, or a hybrid assembly having a combination of any of these types of conductors.
Accordingly, a coaxial connector assembly 10 is provided. The coaxial connector assembly 10 provide the benefits over the prior art coaxial connector assemblies of providing a clamping feature which in cooperation with the along with the wedge, holds the terminal tight, thereby providing maximum retention forces for the coaxial terminal. The wedging and ramp arrangement in the ISL feature 24 and cavity 18 push the coaxial terminal 20 towards forward stop 40 in the cavity 18 along the axial mating direction, which ensures that the terminal is in proper position and providing maximum interface with mating terminal and arresting the gap between the coaxial terminal 20 and the forward stop 40. A primary lock retainer (PLR) feature integrated with the ISL feature 24 backs up and reinforces primary terminal locking feature 22 in the cavity 18 for increased terminal retention. The ISL feature 24 also provides the benefit of improving signal integrity of the signal conducted by the coaxial connector assembly 10 by reducing skew.
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. For example, the above-described embodiments (and/or aspects thereof) may be used in combination with each other. In addition, many modifications may be made to configure a situation or material to the teachings of the invention without departing from its scope. Dimensions, types of materials, orientations of the various components, and the number and positions of the various components described herein are intended to define parameters of certain embodiments and are by no means limiting and are merely prototypical embodiments.
Many other embodiments and modifications within the spirit and scope of the claims will be apparent to those of skill in the art upon reviewing the above description. The scope of the invention should, therefore, be determined with reference to the following claims, along with the full scope of equivalents to which such claims are entitled.
As used herein, ‘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 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 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.
Additionally, while terms of ordinance or orientation may be used herein these elements should not be limited by these terms. All terms of ordinance or orientation, unless stated otherwise, are used for purposes distinguishing one element from another, and do not denote any order of arrangement, order of operations, direction or orientation unless stated otherwise.
This application claims the benefit of priority to U.S. Provisional Patent Application No. 63/055,955 filed on Jul. 24, 2020, the entire disclosure of which is hereby incorporated by reference.
| Number | Date | Country | |
|---|---|---|---|
| 63055955 | Jul 2020 | US |
