The subject matter herein relates generally to connector assemblies that are configured to communicatively couple different communication components through at least one of electrical and optical connections.
Some communication systems, such as servers, routers, and data storage systems, utilize connector assemblies for transmitting signals and/or power through the system. Such systems may include a midplane circuit board, a motherboard, and a plurality of daughter cards. The systems may also include one or more connectors attached to the motherboard that are configured to interconnect a daughter card to the motherboard when the daughter card is inserted into the system. The daughter card includes a receptacle assembly that has a mating face configured to engage a mating face of the connector. The receptacle assembly is generally positioned on or near a leading edge of the daughter card. Prior to being mated, the mating faces of the receptacle assembly and the connector are aligned with each other and face each other along an insertion axis. The daughter card is then moved along the insertion axis until the mating faces engage and the connector and receptacle assembly are mated.
However, in some cases, it may be desirable to mate the receptacle assembly and the connector by moving one or both in a mating direction that does not coincide with the insertion direction. By way of one example, the receptacle assembly may be on a surface of the daughter card and face a direction that is perpendicular to the insertion direction, and the connector may be on the motherboard/bridge card and also face a direction perpendicular to the insertion direction. In such a case, it may be difficult to properly align and mate the receptacle assembly and the connector. In addition to the above, other examples exist in communication systems where it may be difficult to properly align mateable connectors.
Accordingly, there is a need for a connector assembly that facilitates interconnection of communication components when the insertion direction (e.g., the direction in which the daughter card is inserted) is different from the mating direction (e.g., the direction in which the connector moves to engage another).
In one embodiment, a connector assembly is provided that includes an actuator body that is configured to be slidably mounted to a support structure. The actuator body extends along a central longitudinal axis between a pair of connector ends. The actuator body is movable along the longitudinal axis and has an actuator cam feature. The connector assembly also includes an assembly frame that is operatively coupled to the actuator body and is movable along a mating axis that is non-parallel relative to the longitudinal axis. The assembly frame defines a connector compartment and has a frame cam feature. The frame cam feature is positioned to engage the actuator cam feature of the actuator body. The actuator and frame cam features slidably engage each other when the actuator body is moved along the longitudinal axis thereby moving the assembly frame along the mating axis. The connector assembly also includes a mating connector that is held by the assembly frame within the connector compartment. The assembly frame is configured to move the mating connector in a mating direction when the assembly frame is moved along the mating axis.
In another embodiment, a connector assembly is provided that includes an actuator body that is configured to be coupled to a support structure. The actuator body extends along a central longitudinal axis between a pair of connector ends. The actuator body has an actuator cam feature and is movable with respect to the support structure. The connector assembly also includes an assembly frame that is operatively coupled to the actuator body and is movable along a mating axis that is non-parallel relative to the longitudinal axis. The assembly frame defines a connector compartment and has a frame cam feature. The frame cam feature is positioned to engage the actuator cam feature of the actuator body. The actuator and frame cam features slidably engage each other when the actuator body is moved thereby moving the assembly frame along the mating axis. The connector assembly also includes a mating connector held by the assembly frame within the connector compartment. The assembly frame is configured to move the mating connector in a mating direction when the assembly frame is moved along the mating axis. The assembly frame includes a floating element that engages the mating connector and holds the mating connector in a biased position within the connector compartment. The floating element permits the mating connector to float from the biased position in a direction that is different from the mating direction.
Embodiments described herein include connector assemblies that are configured to establish at least one of an electrical and optical connection to transmit data signals between different communication components. Connector assemblies described herein may also establish an electrical connection to transmit power between the communication components. Communication components that may be interconnected by such connector assemblies include printed circuits (e.g., circuit boards or flex circuits), other connector assemblies (e.g., optical and/or electrical connector assemblies), and other components that are capable of establishing an electrical or optical connection. The connector assemblies can include one or more moveable elements in order to selectively move a mating connector toward a communication module. The communication module may be another connector, a communication component, or other components that are capable of establishing an electrical or optical connection. The mating connector may include a mating array (e.g., of electrical contacts or optical terminals) that are configured to engage a complementary array of the communication module to establish an electrical and/or optical connection.
Moreover, embodiments described herein may use cam features to transform a force in one direction to a force in another direction in order to move the mating connector. As used herein, the term “cam feature” includes a physical element having an engagement surface that is shaped in a predetermined manner with respect to another surface to move the mating connector along a predetermined path. Cam features may include channels, projection members, rods or pins, guide elements, edges, planar surfaces, and the like.
As used herein, the term “mating array” includes a plurality of electrical contacts and/or optical terminals that are arranged in a predetermined configuration. The contacts and/or terminals may be held in a fixed relationship with respect to each other and held together by a common structure (e.g., housing) or a base material. A variety of contacts may be used, including contacts that are stamped and formed, etched and formed, contact pads, and the like. In particular embodiments, the mating connector may include a housing that holds the mating array.
A “flex connection,” as used herein, includes flexible pathways that are capable of transmitting electric current and/or optical signals. A flex connection may include at least one of an electrical conductor or a fiber optic communication line. For example, a flex connection may be a flexible circuit configured to convey current through conductors (e.g., conductive traces) that are embedded within a flexible substrate. Such a flexible circuit may transmit data and/or power. Furthermore, a flex connection may include one or more fiber optic communication lines (e.g., fiber optic cables) having optical waveguides that transmit light by total internal reflection. The optical waveguides may include a flexible cladding. The fiber optic cables may be configured to have a limited bend radius so that optical waveguides may transmit light. In addition, a flex connection may include electrical conductors (e.g., wires) that are configured to transmit power or signals therethrough.
The connector assembly 106 may include an actuator body 110 and an assembly frame 112 that are operatively coupled to each other. The actuator body 110 may extend along the insertion axis 191 and may be slidably mounted to the support structure 116 of the system 100. The assembly frame 112 also extends along the insertion axis 191 and is slidably mounted to the support structure 116. The connector assembly 106 is configured to hold a plurality of mating connectors 114 (shown in
The system 100 may be any one of a variety of communication systems, such as a server system, router system, data storage system, and the like. In the illustrated embodiment, the system 100 is configured to communicatively couple a second communication component 104 of a removable card assembly 120 to the first communication component 102. (Only a portion of the removable card assembly 120 is shown in
In the illustrated embodiment, the removable card assembly 120 includes a plurality of communication modules 122 that are mounted to the second communication component 104. To communicatively couple the communication components 102 and 104, the removable card assembly 120 may be inserted and advanced in an insertion direction along the insertion axis 191 into the system 100. The system 100 may be configured to direct the removable card assembly 120 to a predetermined position with respect to the connector assembly 106 so that the communication modules 122 are spaced apart from corresponding mating connectors 114 by a separation distance SD. The connector assembly 106 is configured to move the mating connectors 114 in a mating direction along the mating axis 192 across the separation distance SD and mate the communication modules 122 with the corresponding mating connectors 114. In the exemplary embodiment, the mating direction is perpendicular to the insertion direction. However, embodiments described herein are not limited to mating directions that are perpendicular to the insertion direction. The connector assembly 106 may be configured differently than as shown such that the mating direction is non-perpendicular with respect to the insertion direction. For example, an alternative mating direction may form an angle of about any one of 45°, 60°, 75°, 105°, 120°, or 135° with respect to the insertion direction. Accordingly, embodiments described herein may move mating connectors in a mating direction that is non-parallel with respect to the insertion direction.
The plates 124 and 126 may include various structural elements, e.g., cam features, that operatively couple the actuator body 110 to the assembly frame 112 (
Similar to the plate 124, the plate 126 may include actuator cam features 144 and translating cam features 146 and 264-266. The translating cam features 146 and 264-266 are sized and shaped to engage corresponding cam features of the support structure 116 to move the actuator body 110 in the translating direction. The actuator cam features 144 are sized and shaped to engage corresponding cam features of the assembly frame 112 to move the assembly frame 112 in the mating direction.
In the illustrated embodiment, the actuator cam features 140 and 144 and the translating cam features 142, 262, 146, and 264-266 are channels that extend entirely through the respective plates 124 and 126. However, in other embodiments, the actuator cam features 140 and 144 and the translating cam features 142, 262, 146, and 264-266 may be channels (e.g., grooves) that do not extend through the plates 124 and 126. Furthermore, in alternative embodiments, the actuator cam features 140 and 144 and the translating cam features 142, 262, 146, and 264-266 may be projection members that are configured to engage channels in the assembly frame 112 and the support structure 116.
The actuator cam features 140 may be substantially evenly distributed with respect to each other along a length of the plate 124. The translating cam features 142 may also be substantially evenly distributed with respect to each other along the length of the plate 124. In the illustrated embodiment, the actuator and translating cam features 140 and 142 alternate with one another along a length of the plate 124 parallel to the insertion axis 191. Likewise, the actuator cam features 144 and the translating cam features 146 may be substantially evenly distributed with respect to each other along a length of the plate 126 in a similar manner. In the illustrated embodiment, the actuator and translating cam features 144 and 146 alternate with one another along a length of the plate 126 parallel to the insertion axis 191.
Also shown in
As shown, the assembly frame 112 may define a plurality of connector compartments 160 within the spacing 158 between the panels 154 and 156. For example, the assembly frame 112 may include a plurality of sidewalls 162 that extend between the panels 154 and 156. The sidewalls 162 may extend parallel to a plane defined by the mating and lateral axes 192 and 193 and substantially perpendicular to the panels 154 and 156. In the illustrated embodiment, the panels 154 and 156 and the sidewalls 162 are stamped and formed from sheet material. In other embodiments, the panels 154 and 156 and the sidewalls 162 may be manufactured through other processes, e.g., molding or machining.
In particular embodiments, adjacent sidewalls 162 may have a corresponding one connector compartment 160 extending between the adjacent sidewalls 162. As such, each of the connector compartments 160 may comprise a rectangular-shaped space that is defined by the panels 154 and 156 and the adjacent sidewalls 162 that oppose each other across the space. The connector compartments 160 are configured to receive corresponding mating connectors 114 that may or may not be the same type of connector. In particular embodiments, each connector compartment 160 receives only one mating connector 114. However, in alternative embodiments, more than one mating connector 114 may be positioned within the connector compartment 160. Furthermore, in the illustrated embodiment, the connector compartments 160 are aligned in a series along the insertion axis 191.
As shown, the assembly frame 112 may have a mating face 164 and a loading side 166. The loading side 166 may open to an exterior of the connector assembly 106 (
Similar to the plates 124 and 126, the panels 154 and 156 may include various structural elements, e.g., cam features, that operatively couple the assembly frame 112 to the actuator body 110 (
The panel 154 also includes mating cam features 271-273. Although not shown, the panel 154 may also include frame cam features that may be similar to the frame cam features 180. Such frame cam features may also be sized and shaped to slidably engage corresponding actuator cam features 140 of the actuator body 110 to move the assembly frame 112 in the mating direction.
Also shown in
As shown, the support structure 116 may also include a plurality of guide elements 210 and 212 and support members 224-227. (The support members 225 and 227 are only shown in
In the illustrated embodiment, the support members 224-227 include rods or pins that extend between and attach to the system walls 202 and 204. Similar to the guide elements 210 and 212, the support members 224-227 may constitute cam features that are secured to the system walls 202 and 204. In the illustrated embodiment, the support members 224-227 are stationary elements that operatively couple to the actuator body 110 and/or the assembly frame 112 (
As constructed, the connector assembly 106 includes a pair of connector ends 230 and 232 and has a central longitudinal axis 291 that extends between the connector ends 230 and 232. The longitudinal axis 291 may extend parallel to the insertion axis 191 (
Also shown, the plurality of mating connectors 114 are aligned with one another. In particular embodiments, the mating connectors 114 are modular such that the mating connectors 114 are assembled prior to being inserted through the loading side 166 into the corresponding connector compartments 160 (
The frame and actuator cam features 180 and 140, 144 cooperate with one another to transform the translation force FT1 into a mating force FM1 (
Furthermore, each of the sidewalls 162A and 162B may include floating elements 188A-B. The floating elements 188A-B of one sidewall 162 are configured to engage different mating connectors 114 in adjacent connector compartments 160. For example, the floating element 188A of one sidewall 162 may be biased such that the floating element 188A extends into a first connector compartment 160, and the floating element 188B from the same sidewall 162 may be biased such that the floating element 188B extends into a second connector compartment that is adjacent to the first connector compartment. In other words, adjacent mating connectors 114 may be separated by a common sidewall 162 that has floating elements 188A-B in which one floating element 188A engages one mating connector 114 and the other floating element 188B engages the other mating connector 114.
In the illustrated embodiment, the floating elements 186 and 188A-B are resilient fingers. The resilient fingers may be stamped and formed from material that forms the corresponding sidewall or panel. The resilient fingers may also be molded or formed in another manner. Furthermore, other floating elements may be used instead of resilient fingers. For example, the floating elements 186 and/or 188 may include springs.
Also shown, the floating element 188A of the sidewall 162B, the floating element 188B of the sidewall 162A, and the floating elements 186 of the panels 154 and 156 are configured to engage the mating connector 114 in the connector compartment 160 and hold the mating connector 114 in a biased position. The biased position of the mating connector 114 is shown in
As shown in
As shown, the path 250 has a path end 252 that prevents the frame cam feature 180 from moving further. When the translation force FT1 is applied and the assembly frame 112 has been fully extended into the engaged position, the frame cam feature (indicated as 180′) may be pressed against the path end 252 as indicated by the dashed circle in
In some embodiments, when the translation force FT1 is removed, dimensions of the operator handle 128, the actuator and cam features 144 and 180, the positive stop 254, and/or the engagement features 244 may provide tolerances that permit the mating connector 114 to release the mating force FM1 against the communication module 122. For example, the frame cam feature may move from a pressed position (indicated at 180′) to a released position (indicated at 180). Furthermore, the engagement feature may move from a pressed position (indicated at 244′) to a released position (indicated at 244). In such embodiments, the electrical and mechanical connection may be maintained without the mating force FM1. For example, the frictional forces between the mating connectors 114 and the communication modules 122 may operate to resist movement of the mating connectors 114 away from the communication modules 122 (as indicated by the arrow FR2) and thereby maintain the electrical and mechanical connection of the mating connectors 114 and the corresponding communication modules 122. In other words, the interference fit between the communication module 122 and the mating connector 114 may prevent the mating connector 114 from inadvertently disengaging (e.g., due to shock, vibration, gravity) with the corresponding communication module 122 during operation of the system 100 (
It is to be understood that the above description is intended to be illustrative, and not restrictive. For example, in the illustrated embodiment, the mating axis 192 extends perpendicular to the insertion axis 191 and the lateral axis 193. However, embodiments described herein may be configured to move the mating connectors along axes that are non-parallel with respect to the insertion axis 191. For example, the various cam features of the connector assembly 106 may be configured to move mating connectors 114 in any direction along the plane defined by the axes 191 and 192 as shown in
Furthermore, in the exemplary embodiment, the actuator body 110 is moved in a substantially linear manner to provide the mating force FM1 that drives the mating connectors 114. However, in other embodiments, the actuator body 110 is not moved in a linear manner. For example, an alternative actuator body may be rotated about an axis of rotation to move the assembly frame and thereby provide a mating force. As a specific example, the actuator body may comprise an axle that rotates about an axis of rotation and has a projection member that projects radially away from the axis of rotation in a non-uniform manner. The non-uniform shape of the projection member may determine the amount of distance traversed by the mating connector. Other camming mechanisms may be used to provide the mating force.
In addition, the above-described embodiments (and/or aspects thereof) may be used in combination with each other. Furthermore, many modifications may be made to adapt a particular 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 exemplary 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 appended claims, along with the full scope of equivalents to which such claims are entitled. In the appended claims, the terms “including” and “in which” are used as the plain-English equivalents of the respective terms “comprising” and “wherein.” Moreover, in the following claims, the terms “first,” “second,” and “third,” etc. are used merely as labels, and are not intended to impose numerical requirements on their objects. Further, the limitations of the following claims are not written in means—plus-function format and are not intended to be interpreted based on 35 U.S.C. §112, sixth paragraph, unless and until such claim limitations expressly use the phrase “means for” followed by a statement of function void of further structure.
Number | Name | Date | Kind |
---|---|---|---|
6846115 | Shang et al. | Jan 2005 | B1 |
7374441 | Rubenstein | May 2008 | B2 |
7473039 | Yi et al. | Jan 2009 | B2 |
7771207 | Hamner et al. | Aug 2010 | B2 |
Entry |
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Strada Whisper* Connector System; Application Specification 114-13282; (c) Tyco Electronics Corporation; Nov. 4, 2010 Rev A; *Trademark. Other product names, logos, or company names might be trademarks of their respective owners; 16 pgs. |
Number | Date | Country | |
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20120237166 A1 | Sep 2012 | US |