The present invention relates to field of connectors, more specifically the field of connectors suitable for providing power.
Generally, an electrical connector includes some form of insulative or dielectric housing which mounts one or more conductive terminals. The housing is configured for mating with a complementary mating connector or other connecting device which, itself, has one or more conductive terminals. A connector assembly typically includes a pair of mating connectors, such as plug and receptacle connectors sometimes called male and female connectors of which, corresponding terminals of the connectors, themselves, may be male and female terminals.
Existing computer systems tend to have a power supply positioned in one location and various components that use the provided power in other locations. This allows for desirable thermal management and further allows for the positioning of processors in the preferred location. One issue that results from such a configuration, however, is that the supplied power must be delivered to the various consumption devices. For certain devices this is not an issue. However, for other power consumption devices (such as CPU or other devices that change power states rapidly) the distance creates certain issues.
One issue that is commonly present is the issue of inductance between the power supply and the power consumption device. As is known, current flowing along a path will generate a magnetic field that will act to resist the flow of current. Many modern power consumption devices switch power usage at relatively high frequencies (e.g., up to and beyond 1 MHz). The rapid switching of power causes the voltage being delivered to sag, which can be problematic to the consumption device, depending on the sensitivity of such a device to variations in the provided power. Thus, for certain applications it has been determined that such voltage sag is unacceptable and therefore capacitors are provided adjacent the power consumption device so as to ensure a constant voltage is supplied. Certain individuals would appreciate being able to reduce or eliminate the use of capacitors
The present disclosure generally relates to combined electrical power and signal connectors that can be integrated into a connector system and that can provide desirable operation under high current density conditions. In general, connectors are suitable for use as modular components within modular assemblies. For example, modular assemblies can take, for example, the form of wire-to-board or wire-to-wire connectors and can, when desired, provide a low-profile connector system.
A connector assembly may be provided that includes a plug connector and a receptacle connector. The connector assembly includes one or more blade-type power contacts on the plug connector and multiple-pronged power contacts on the receptacle connector. The plug connector includes signal pin contacts mounted within a shrouded area of the connector. The receptacle connector may include a signal module that is slidably mateable with the receptacle connector. A power contact includes a pair of blade portions forming the mating portion of the power contact with an intermediate insulator spaced between each conductive blade portions. Thus, the connector allows power and signals to be coupled together with a single connector assembly.
The present invention is illustrated by way of example and not limited in the accompanying figures in which like reference numerals indicate similar elements and in which:
The detailed description that follows describes exemplary embodiments and is not intended to be limited to the expressly disclosed combination(s). Therefore, unless otherwise noted, features disclosed herein may be combined together to form additional combinations that were not otherwise shown for purposes of brevity.
One or more embodiments of the present disclosure utilizes multiple both signal and power circuits in a connector system that provide proper alignment, mechanical connection and electrical connection, while providing a low profile connection. If desired the configuration can be modified to provide board-to-board, wire-to-board and wire-to-wire connection.
A typical signal module 14 generally is comprised of a series of over-molded wafers 16 having a number of signal circuits held within a shroud or holding assembly 18. The wafers 16 are retained in the holding assembly 18 generally by a snap fit and an optional stiffener, which in turn is secured to an adjacent module of either signal 14 or power type 24.
As best shown in
As illustrated in
In
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As best shown in
Each power module 24 has an interlocking structure (not shown) formed on each side of the housing 26 for being secured to an appropriate adjacent power module 24 or signal module 14. The interlocking structure typically utilizes a dove tail structure with appropriate male and female portions of the dovetail (not shown) on respective sides of each module 14, 24. As can be appreciated, other structures such as a “T” shape or any other suitable interlocking shape may be substituted.
In the embodiment shown in
In certain instances, it is desirable to have different current carrying loads for individual circuits in certain power applications. For instance, one application may require high current and thus require a power terminal with a large blade portion. Of course, with increased current loads the power terminals will exhibit a temperature increase. The surface area also aids in the dissipation of this heat, consequently each blade portion of certain power terminals can be formed with a different surface area and in the embodiment shown, the lengths of the individual power contact blade portions have different lengths. In another embodiment, the blade portions lengths can be the same for each power contact but the lengths of adjacent power contacts are different. By the use of different lengths and the insulative barrier, the thermal characteristics and electrical characteristics can be tuned accordingly.
A similar arrangement is shown for the receptacle module 84. As illustrated in
The receptacle 84 also includes a passageway 85 that extends through the housing 96 allowing for airflow through the receptacle module 84 as well. In this instance as best shown in
As shown in
As can be appreciated, the placement of two blades close to each other has a beneficial impact on the electrical performance of the connector. As noted above, a current flowing along a path will generate a magnetic field that resists the flow of current. If current is flowing in the opposite direction in close proximity then the two magnetic fields can cancel out and the loop inductance and resultant impedance will be reduced. The depicted embodiments thus allow for a connector that provides for desirable electrical performance while still providing good electrical isolation between positive and negative terminals. In addition, in certain embodiments the blades can be kept in close proximity substantially the entire length of the blades, thus providing a desirable improvement in impedance such that the system can reduce voltage lag. Consequentially, in a system the number of local capacitors that would normally be used to protect against voltage sag can be reduced.
As shown in
It should be noted that in general, while plug connectors and receptacle receptors have been described as having certain features, the depiction of whether a connector is a plug or receptacle type in the figures is done merely for illustrative purposes. Therefore, it is envisioned that a particular connector could be configured to be a plug or a receptacle type or a combination of plug and receptacle, as desired. For example, a connector could include a power contact that is a plug type or a receptacle type and also include a signal contact that is a plug type or a receptacle type. Therefore, unless otherwise noted, the determination of whether a contact is a receptacle or plug is not intended to be limiting.
The disclosure provided herein describes features in terms of preferred and exemplary embodiments thereof. Numerous other embodiments, modifications and variations within the scope and spirit of the appended claims will occur to persons of ordinary skill in the art from a review of this disclosure.
This application claims priority to U.S. Provisional Application No. 61/845,419, filed Jul. 12, 2013 which is incorporated herein by reference in its entirety.
Filing Document | Filing Date | Country | Kind |
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PCT/US2014/046279 | 7/11/2014 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
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WO2015/006644 | 1/15/2015 | WO | A |
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