The present invention relates to contacts and connectors for transmitting electrical power.
Power contacts known in the art include features and configurations that provide either a board-to-board interface or a board-to-cable interface when employed in electrical connectors. By way of example, power contacts providing a board-to-board interface may employ a body member (e.g., a planar wall), that by itself (receptacle contact), or through a beam extending from the body member (plug contact), defines an engagement portion for engaging a mating contact. A plurality of terminals extend from the body member for engagement with a printed circuit board. The board-to-board interface is completed when an electrical connector containing a receptacle contact is mated with an electrical connector containing a plug contact.
An example of a board-to-cable interface includes a first electrical connector employing a plug contact similar to that above, and a second electrical connector employing a receptacle contact having a plug projection extending from the body member instead of circuit board engaging terminals. The board-to-cable interface is completed when a power cable plug engages the plug projection on the receptacle contact and the mating first and second electrical connectors are engaged.
The present invention is directed to power contacts employed in electrical connectors that transmit electrical power. The preferred power contacts include multiple, electrical interface portions to provide for both a board-to-board interface and a cable-to-board interface. In accordance with one preferred contact embodiment, there has now been provided a power contact for an electrical connector, the power contact has a contact wall, at least one terminal extending from the contact wall, and at least one plug projection extending from the contact wall. A portion of the contact wall defines a first electrical interface for engaging a contact associated with a mating electrical connector. The terminal defines a second electrical interface for engaging a circuit board. And the plug projection defines a third electrical interface for engaging a cable plug connector.
In accordance with another preferred contact embodiment, there has now been provided a power contact for an electrical connector, the power contact has a first contact wall and a second contact wall. A portion of each of the first and second contact walls collectively define an electrical interface for engaging a contact associated with a mating electrical connector. At least one of the first contact wall and the second contact wall includes extensions that define electrical interfaces for engagement with multiple separate and independent electrical components in addition to the mating electrical connector.
In accordance with yet another preferred contact embodiment, there has now been provided a two-piece power contact for an electrical connector, the power contact has a first contact wall and a second contact wall that is uncoupled from the first contact wall. The first contact wall has a plug projection for engaging a cable plug, and a terminal for engaging a circuit board. A portion of each of the first and second contact walls collectively define an electrical interface for engaging a power contact associated with a mating electrical connector.
The present invention is also directed to electrical connectors employing power contacts. In accordance with one preferred connector embodiment, there has now been provided an electrical connector including an insulative housing and a power contact disposed in the insulative housing. The power contact includes a first electrical interface portion for engaging a contact associated with a mating electrical connector, a second electrical interface portion for engaging a circuit board, and a third electrical interface portion for engaging a cable plug connector.
In accordance with another preferred connector embodiment, there has now been provided an electrical connector having an insulative housing, a one-piece power contact, and a two-piece power contact. The one-piece power contact has a first contact wall and a second contact wall coupled to the first contact wall. The two-piece power contact has a first contact wall and a second contact wall spaced apart and uncoupled from the first contact wall.
In accordance with yet another preferred connector embodiment, there has now been provided an electrical connector including an insulative housing, a first power contact disposed in the insulative housing, and a second power contact disposed in the insulative housing. The first power contact includes a contact wall and at least one terminal extending from the wall for engaging a circuit board. The second power contact includes a contact wall, a plug projection extending from the wall for engaging an AC or DC cable plug or ground wire, and a terminal extending from the wall for engaging a circuit board.
These and various other features of novelty, and their respective advantages, are pointed out with particularity in the claims annexed hereto and forming a part hereof. However, for a better understanding of aspects of the invention, reference should be made to the drawings which form a further part hereof, and to the accompanying descriptive matter, in which there is illustrated preferred embodiments.
The present invention is believed to be best understood through the following detailed description of the preferred embodiments and the accompanying drawings wherein like reference numerals indicate like features, and wherein:
The present invention is believed to be best understood through the following detailed description of preferred embodiments and the accompanying drawings wherein like reference numbers indicate like features. Referring to
Referring now to
Portions of contact walls 31 and 32 collectively define a first electrical interface 40 for engaging a contact associated with a mating electrical connector. Each of contact walls 31 and 32 have multiple terminals 36 extending from a bottom edge 37 for engaging a printed circuit board, thus defining a second electrical interface 41. As discussed above, plug projections 34 extend from a rear edge 39 of each of contact walls 31 and 32, which defines a third electrical interface 42 for engaging a cable plug connector. Thus, power contacts 30 are configured for engagement with three separate and independent electrical components: a mating connector, a cable plug connector, and a printed circuit board. Power contacts 30 provide both a cable-to-board interface via contact walls 31, 32 and plug projections 34, and a board-to-board interface via contact walls 31, 32 and terminals 36.
With reference now to
An exemplary power contact 60 is shown in
Another preferred electrical receptacle connector 110 is illustrated in FIG. 5 and is shown mated with a header connector 100. Electrical connector 110 includes an insulative housing 111 and is shown with a signal contact array 125, two power contacts 60 (see
Referring now to
Another preferred receptacle connector 210 is shown in
Preferred power contacts are stamped or otherwise formed from suitable materials, such as, for example, phosphor bronze alloys, beryllium copper alloys, or high conductivity copper alloys. Signal contacts are preferably “pin-type” contacts that include tail portions for connection with a circuit board, and are made from suitable materials, such as, for example, copper alloys. The power and signal contacts may be plated with gold, or a combination of gold and nickel. Electrical connector housings are preferably molded or formed from a glass-filled high temperature nylon or other materials known to one having ordinary skill in the art.
The number and arrangement of the various preferred power contacts and signal contacts may differ from that which is shown in the figures. Furthermore, alternative electrical connectors contemplated by the present invention include only power contacts and do not include signal contacts. It is to be understood that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only. Accordingly, changes may be made in detail, especially in matters of shape, size and arrangement of features within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
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