Miniaturized power jack with high normal force

Details Miniaturized power jack with high normal force Miniaturized power jack with high normal force

2000-10-06

2001-11-27

Paumen, Gary (Department: 2833)

Electrical connectors

With insulation other than conductor sheath

Plural-contact coupling part

C439S188000, C439S944000

Reexamination Certificate

active

06322397

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a miniaturized power jack connector, and particularly to a miniaturized power jack connector with high insertion force.
2. Brief Description of the Prior Art
With the miniaturization of electrical connectors, providing terminals creating a normal force large enough to securely retain a plug connector in a complementary receptacle connector becomes a problem. The terminals of a miniaturized connector do not generally provide a large enough normal force. The need to miniaturize and the need for suitably large normal forces have generated a variety of attempted solutions to this problem.
U.S. Pat. No. 4,894,026 discloses a conventional receptacle connector comprising a conductive shield which surrounds a dielectric housing. The housing defines a receiving cavity for receiving a plug connector, and the shield forms a resilient finger extending into the receiving cavity for engaging with a shield of the plug connector. The finger contacting with the shield of the plug connector increases the normal force between the connectors, and establishes an electrical path between the shield of the plug connector and the shield of the receptacle connector.
However, in some applications, electrical connection between the shield of the plug connector and the shield of the receptacle connector is undesired, particularly when the connector does not need a shield. In such cases, a connector is desired which provides a high normal force without an electrical connection between the shields of the plug connector and the receptacle connector.
Hence, an improved electrical connector is required to overcome the disadvantages of the prior art.
BRIEF SUMMARY OF THE INVENTION
An object of the present invention is to provide a miniaturized power jack which exerts high normal force on a complementary connector;
Another object of the present invention is to provide such a jack whereby shield to shield contact is not necessary.
To achieve the above-mentioned objects, a power jack of the present invention includes a housing, a conductive stationary switch contact located at a rear end of the housing, a pin longitudinally extending along the housing, a moveable switch contact, and a spring member positioned under the pin.
The housing defines a first chamber extending inward from a front surface of the housing, a second chamber located below and communicating with the first chamber for receiving the spring member, a third chamber defined in a rear end of the housing for receiving the stationary switch contact, and a fourth chamber located lateral to and communicating with the first chamber for receiving the moveable switch contact.
The pin provides a contacting section extending along the first chamber, a securing section fixed in the housing, and a solder tail.
The stationary switch contact and the movable switch contact cooperate to function as an electrical switch.
The spring member includes a planar base secured in the second chamber and a resilient finger protruding from the second chamber into the first chamber for pressing against an inserted complementary connector. The spring member provides a mechanical connection between the inserted complementary connector and the power jack, without an electrical connection therebetween. Therefore, the spring member increases the normal force between the power jack and the complementary connector for maintaining the inserted complementary connector in position and ensuring a reliable electrical connection between the inserted complementary connector and the pin of the power jack.
Other objects, advantages and novel features of the present invention will become more apparent from the following detailed description of the present embodiment when taken in conjunction with the accompanying drawings.


REFERENCES:
patent: 4894026 (1990-01-01), Dixon et al.
patent: 6000970 (1999-12-01), Wu
patent: 6077126 (2000-06-01), Peng
patent: 6220898 (2001-04-01), Wu
patent: 6227889 (2001-05-01), Wu

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