Electrical connectors – Energy cell substitution device including plural contacts or...
Reexamination Certificate
1998-07-10
2001-05-08
Bradley, P. (Department: 2833)
Electrical connectors
Energy cell substitution device including plural contacts or...
Reexamination Certificate
active
06227901
ABSTRACT:
FIELD OF THE INVENTION
In general, the present invention relates to motor boots and, in particular, the present invention relates to a motor boot for mechanically and electrically connecting a motor to a circuit board.
BACKGROUND
Typical motor boots and the associated motors take a great number of steps to install, which usually consist of the following. First, a motor is fitted with a boot. Second, motor lead wires are soldered to a Printed Circuit Board (PCB) for electrical operation of the motor. Next, the boot and motor are mounted in an electronic device, such as a mobile phone or pager. This type of motor boot is difficult to install, labor intensive during installation, and makes a large “footprint” on the circuit board, thereby taking up precious space within the electronic device. In addition, the connection method of these motor boots are soldered to the PCB thereby causing difficult rework procedures in manufacturing.
SUMMARY OF THE INVENTION
The present invention eliminates the above difficulties and disadvantages by providing a motor boot for mechanically and electrically connecting a motor to a circuit board that has an electrical contact with the motor having an electrical pad and a nob, disposed thereon. The motor boot includes a vibrational damping housing constructed of elastomeric material. The housing is U-shaped and includes a first support leg with a slot disposed therein. A second support leg is spaced apart from the first support leg, and a base is integrally formed with the first and second support legs.
The motor boot further includes a substantially cylindrical receptacle that is formed in the housing for slidably receiving and releasably securing the motor therein by interference fit. The receptacle includes a cut-out in fluid flow communication with the slot for receiving the electrical pad of the motor therein, and a port for receiving the nob of the motor therein.
The motor boot also includes a vibrational damping, electrically conductive, connector disposed in the slot that contacts the electrical pad of the motor and the contact when the motor boot is connected to the circuit board. This creates electrical communication between the motor and circuit board. The connector is constructed of an electrically conductive elastomeric material, absorbs mechanical energy of the motor, and transfers electrical energy of the motor to the circuit board. During installation, the motor boot is preferably connected to the circuit board by compression being applied to the housing by a wall of the device.
In one embodiment, the connector is integrally formed with the housing thereby making the motor boot of one piece construction. In yet another embodiment, the connector is slidably received and releasably secured within the slot by interference fit.
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Pupkiewicz Edward J.
Wozniak Bohdan P.
Bradley P.
Hammond Briggitte R.
Hoffmann & Baron , LLP
Thomas & Betts International Inc.
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