Transfer switch assembly and method
First Claim
Patent Images
1. A method, comprising:
- operably coupling a power transfer switch unit with an interface to an external power source;
operably coupling the power transfer switch unit with a generator power source;
operably coupling the power transfer switch unit to an output power bus;
switching between the external power source and the generator power source with the power transfer switch to transfer electric power to the output power bus, wherein the power transfer switch unit includes;
a contactor defining a number of landings between a first end portion and a second end portion, the landings each being separated from one another by a corresponding one of a number of dividing walls;
a printed circuit board carrying a number of power electronic devices, the printed circuit board including a first side opposite a second side and defining an opening therethrough, the opening being bordered by several tabs each separated from one another by a corresponding one of several notches, the contactor being received through the opening to place each respective one of the dividing walls through a respective one of the notches, each respective one of the tabs being fastened to a respective one of the landings; and
an enclosure including a first enclosure wall opposite a second enclosure wall, the contactor and the printed circuit board being contained in the enclosure and at least one of the first end portion and the second end portion of the contactor engaging the enclosure to position the printed circuit board between the first enclosure wall and the second enclosure wall.
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Accused Products
Abstract
A method for assembly of a transfer switch is disclosed that includes a power switch device with a number engagement landings and a printed circuit board defining an opening bordered by a number of tabs. The tabs engage the landings as the switch device extends through the openings, and can be fastened together.
72 Citations
20 Claims
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1. A method, comprising:
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operably coupling a power transfer switch unit with an interface to an external power source; operably coupling the power transfer switch unit with a generator power source; operably coupling the power transfer switch unit to an output power bus; switching between the external power source and the generator power source with the power transfer switch to transfer electric power to the output power bus, wherein the power transfer switch unit includes; a contactor defining a number of landings between a first end portion and a second end portion, the landings each being separated from one another by a corresponding one of a number of dividing walls; a printed circuit board carrying a number of power electronic devices, the printed circuit board including a first side opposite a second side and defining an opening therethrough, the opening being bordered by several tabs each separated from one another by a corresponding one of several notches, the contactor being received through the opening to place each respective one of the dividing walls through a respective one of the notches, each respective one of the tabs being fastened to a respective one of the landings; and an enclosure including a first enclosure wall opposite a second enclosure wall, the contactor and the printed circuit board being contained in the enclosure and at least one of the first end portion and the second end portion of the contactor engaging the enclosure to position the printed circuit board between the first enclosure wall and the second enclosure wall. - View Dependent Claims (2, 3)
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4. A method for assembling a power switch unit, comprising:
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connecting an electric power switching device to a printed circuit board by positioning the electric power switching device through an opening between first and second sides of the printed circuit board to engage a number of landings of the electric power switching device with different ones of a number of engagement fingers of the printed circuit board that border the opening so that a first end portion of the electric power switching device extends past the first side of the printed circuit board and a second end portion of the electric power switching device extends past the second side of the printed circuit board; and positioning the electric power switching device and the printed circuit board in an enclosure that includes a first wall opposite a second wall so that at least one of the first end portion and the second end portion bear against the enclosure to support the printed circuit between the first wall and the second wall. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for assembling an electric power transfer switch unit, comprising:
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obtaining a power switching device defining a number of fastening landings each separated from one another by a corresponding one of a number of dividing walls; obtaining a printed circuit board carrying a number of electrical power devices, the printed circuit board defining an opening therethrough that is bordered by a number of fastening fingers each separated from one another by a corresponding one of a number of notches, the fingers each configured to provide thermal and electrical conductivity; positioning the power switching device through the opening to engage each respective one of the fingers with a respective one of the landings and receive a respective one of the dividing walls through a respective one of the notches; and fastening the respective one of the fingers to the respective one of the landings. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification