US5648892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wireless circuit board system for a motor controller
Assignee: Allen Bradley Co LLC
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Filing: 1995-09-29
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Granted: 1997-07-15
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Expires: 2015-09-29
Abstract
Abstract A multilayer circuit board system or laminated circuit board system for use in a motor controller includes a motherboard, at least one power substrate circuit board, and a capacitor circuit board. The power substrate module includes a mounting area provided in a recess, window or portion of the circuit board where the circuit board is only a single layer thick. The single circuit board layer at the mounting area provides a heat conductive yet highly electrically insulated mounting area for receiving a heat sink. The heat sink can be mounted on a side opposite the electrical device. The capacitor circuit board, power substrate circuit board, and mother circuit board are interconnected without the use of external connectors or wires. A flexible circuit board layer or SCM™ interconnect interface allows the circuit boards to be connected solely by printed circuit (PC) wires.
Inventors
- 👤 Christopher J. Wieloch
- 👤 Thomas E. Babinski
- 👤 John C. Mather
- 👤 Gerard A. Woychik
- 👤 Steven R. McLaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:31
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/2089; H05K7/20909; H05K7/20918; H02; H02M; H02M7/00; H02M7/003; H05K1/00; H05K1/02; H05K1/14; H05K1/148
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
110 words
A wireless motor controller, comprising: a power substrate circuit board including semiconductor switches; a capacitor circuit board including a plurality storage capacitors coupled between a positive bus and a negative bus situated on the capacitor circuit board; and a first circuit board mechanically and electrically coupled to at least one of the power substrate circuit board and the capacitor circuit board, the positive bus and the negative bus on the capacitor circuit board being electrically coupled to the power substrate circuit board via a connection of solely printed wire circuit board conductors, whereby parasitic inductive effects are reduced as compared with a conductor arrangement in a conventional motor controller system.
Claim 2
Dependent Claim
110 words
A wireless motor controller, comprising: a power substrate circuit board including semiconductor switches; a capacitor circuit board including a plurality storage capacitors coupled between a positive bus and a negative bus situated on the capacitor circuit board; and a first circuit board mechanically and electrically coupled to at least one of the power substrate circuit board and the capacitor circuit board, the positive bus and the negative bus on the capacitor circuit board being electrically coupled to the power substrate circuit board via a connection of solely printed wire circuit board conductors, whereby parasitic inductive effects are reduced as compared with a conductor arrangement in a conventional motor controller system.
Claim 3
Dependent Claim
42 words
The wireless motor controller of claim 1 wherein the printed wire circuit board conductors are provided on a flexible circuit board layer extending between the power substrate circuit board and the capacitor circuit board, the flexible circuit board layer providing the connection.
Claim 4
Dependent Claim
71 words
The wireless motor controller of claim 1 wherein the first circuit board is a mother board including a first mounting aperture receiving a first edge of the power substrate circuit board and a second mounting aperture receiving a second edge of the capacitor circuit board, the first mounting aperture and the second mounting aperture each having a lateral face with a plated connector, the plated connector being part of the connection.
Claim 5
Dependent Claim
43 words
The wireless motor controller of claim 3 wherein the first mounting feature receives a first mounting leg of the power substrate circuit board at a first leg aperture and the second mounting feature receives a second mounting leg at a second leg aperture.
Claim 6
Dependent Claim
75 words
The wireless motor controller of claim 1 wherein the positive bus is provided on a first side of the capacitor circuit board and the negative bus is provided on a second side of the capacitor circuit board and the positive bus is coupled to a first set of finger connectors on the power substrate circuit board and the negative bus is coupled to a second set of finger connectors on the power substrate circuit board.
Claim 7
Dependent Claim
40 words
The wireless circuit board of claim 5 wherein the first and second sets of finger connectors are located situated interstitially on a first side of the power substrate circuit board and a second side of the power substrate circuit board.
Claim 8
Dependent Claim
33 words
The wireless circuit board of claim 6 wherein the second side of the power substrate circuit board includes a ground plane coupled to the negative bus and configured to receive a heat sink.
Claim 9
Dependent Claim
30 words
The wireless motor controller of claim 3 wherein the first and second mounting apertures are oval shaped holes having plated through finger connectors on a lateral face of the slot.
Claim 10
Dependent Claim
30 words
The wireless motor controller of claim 3 wherein the power substrate circuit board and the capacitor board are mounted in a perpendicular fashion with respect to the mother circuit board.
Claim 11
Dependent Claim
152 words
A motor controller circuit board system, the circuit board system comprising: a power substrate mounting board including semiconductor switches; a capacitor mounting board including a plurality storage capacitors coupled between a first bus and a second bus, the first bus and the second bus being situated on the capacitor mounting board; and a mounted circuit board including a plurality of mounting areas integral with the mounted circuit board, the mounting areas mechanically and electrically receiving the power substrate mounting board and the capacitor mounting board, the first bus and the second bus on the capacitor mounting board being electrically coupled to the power substrate mounting board via a connection of solely a plurality of printed wire circuit board conductors on the mounted circuit board, the connection being made without external wires and without external connectors, whereby parasitic inductance is reduced as compared with a conductor arrangement in a conventional motor controller system.
Claim 12
Dependent Claim
152 words
A motor controller circuit board system, the circuit board system comprising: a power substrate mounting board including semiconductor switches; a capacitor mounting board including a plurality storage capacitors coupled between a first bus and a second bus, the first bus and the second bus being situated on the capacitor mounting board; and a mounted circuit board including a plurality of mounting areas integral with the mounted circuit board, the mounting areas mechanically and electrically receiving the power substrate mounting board and the capacitor mounting board, the first bus and the second bus on the capacitor mounting board being electrically coupled to the power substrate mounting board via a connection of solely a plurality of printed wire circuit board conductors on the mounted circuit board, the connection being made without external wires and without external connectors, whereby parasitic inductance is reduced as compared with a conductor arrangement in a conventional motor controller system.
Claim 13
Dependent Claim
39 words
The motor controller circuit board system of claim 10 wherein the printed wire circuit board conductors include finger connectors at the mounting areas, and the mounting areas including apertures having lateral faces with plated connectors on the lateral faces.
Claim 14
Dependent Claim
25 words
The motor controller circuit board system of claim 10 wherein the power substrate mounting board includes a window exposing an enhanced metal circuit board layer.
Claim 15
Dependent Claim
22 words
The motor controller circuit board system of claim 12 wherein the enhanced metal circuit board layer is coupled to the first bus.
Claim 16
Dependent Claim
32 words
The motor controller circuit board system of claim 13 wherein the first bus is coupled to the enhanced metal circuit board layer via a plated portion of a wall of the window.
Claim 17
Dependent Claim
77 words
The motor controller circuit board system of claim 14 wherein the first bus is provided on a first side of the capacitor mounting board and the second bus is provided on a second side of the capacitor mounting board and the first bus is coupled to a first set of finger connectors on the power substrate mounting board and the second bus is coupled to a second set of finger connectors on the power substrate mounting board.
Claim 18
Dependent Claim
41 words
The motor controller circuit board system of claim 15 wherein the first and second sets of finger connectors located situated interstitially on a first side of the power substrate mounting board and a second side of the power substrate mounting board.
Claim 19
Dependent Claim
44 words
The motor controller circuit board system of claim 16 wherein the second side of the power substrate mounting board includes a ground plane coupled to the second bus configured to receive a heat sink, wherein the ground plane is coupled to the second bus.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-07-14 | 2001-01-13 | 2001-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-14 | 2005-01-13 | 2005-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-14 | 2009-01-13 | 2009-07-15 | $7700.00 | Window Closed / Lapsed |