Energy supply device for explosion-proof electronic functional units

• US 9,396,864 B2
• Filed: 10/01/2014
• Issued: 07/19/2016
• Est. Priority Date: 10/01/2013
• Status: Active Grant

• Current Assignee: ABB Schweiz AG (ABB Limited)
• Original Assignee: ABB Technology AG (ABB Limited)
• Inventors: Kretschmann, Rainer, Schffer, Ralf, Keul, Thomas
• Primary Examiner(s): Datskovskiy, Michail V
• Application Number:
  US14/503,836
• Publication Number:
  US 20150092321A1
• Time in Patent Office: 657 Days
• Field of Search: 361/600, 361/622, 361/627, 361/761, 361/763, 361/764, 361/765, 361/780, 361/794, 361/798, 361/826, 174/250, 174/257, 174/259, 174/261, 174/149.B, 174/532, 336/147, 336/192, 336/200, 336/222, 336/223, 336/232, 307/11, 307/104, 298/31, 298/39
• US Class Current: 1/1
• CPC Class Codes: H01F 2027/2809 on stacked layers
• CPC Class Codes: H01F 27/266 Fastening or mounting the core on casing or support on coil H01F27/30
• CPC Class Codes: H01F 27/2804 Printed windings
• CPC Class Codes: H01F 27/306 Fastening or mounting coils or windings on core, casing or other support
• CPC Class Codes: H02J 3/00 Circuit arrangements for ac mains or ac distribution networks
• CPC Class Codes: H05K 1/0271 Arrangements for reducing stress or warp in rigid printed circuit boards, e.g. caused by loads, vibrations or differences in thermal expansion
• CPC Class Codes: H05K 1/0298 Multilayer circuits
• CPC Class Codes: H05K 1/05 Insulated conductive substrates, e.g. insulated metal substrate
• CPC Class Codes: H05K 1/141 One or more single auxiliary printed circuits mounted on a main printed circuit, e.g. modules, adapters H05K1/142 and H05K1/147 take precedence
• CPC Class Codes: H05K 1/165 incorporating printed inductors
• CPC Class Codes: H05K 1/18 Printed circuits structurally associated with non-printed electric components H05K1/0201, H05K1/023, H05K1/0243, and H05K1/16 take precedence
• CPC Class Codes: H05K 2201/086 for inductive purposes, e.g. printed inductor with ferrite core
• CPC Class Codes: H05K 2201/1003 Non-printed inductor
• CPC Class Codes: H05K 3/366 substantially perpendicularly to each other H05K3/361 takes precedence

Abstract

An exemplary energy supply device for explosion-proof electronic functional units supplies each functional unit with a high-frequency AC voltage via an inductor. The inductors are formed as substantially congruent conductor tracks of a multi-level printed circuit board, which can be connected to one another and arranged vertically on a distribution printed circuit board. The number of metallization planes of the multi-level printed circuit board being greater than the number of metallization planes of the distribution printed circuit board.

Claims

1. An energy supply device for explosion-proof electronic functional units, comprising:

at least one inductor connected to supply an associated functional unit with a high-frequency AC voltage;

at least one multi-level printed circuit board; and

a distribution printed circuit board,

wherein the at least one inductor is formed as a substantially congruent conductor track of the at least one multi-level printed circuit board, the conductor tracks are connected to one another on the at least one multi-level printed circuit board,

wherein the at least one multi-level printed circuit board is arranged vertically on a distribution printed circuit board, and

wherein a number of metallization planes of the at least one multi-level printed circuit board is greater than a number of metallization planes of the distribution printed circuit board.

2. The energy supply device of claim 1, wherein the at least one multi-level printed circuit board includes a plurality of multi-level printed circuit boards, and each multi-level printed circuit board includes the conductor track of one of the at least one inductor.

3. The energy supply device of claim 1, wherein each metallization plane of the at least one multi-level printed circuit board has at least one turn of the at least one inductor.

4. The energy supply device of claim 2, wherein each metallization plane of the plurality of multi-level printed circuit boards has at least one turn of the at least one inductor.

5. The energy supply device of claim 1, comprising:

mechanical fasteners,

wherein the at least one inductor is mechanically fastened to the distribution printed circuit board via the mechanical fasteners.

6. The energy supply device of claim 1, comprising:

electrical contacts,

wherein the at least one inductor is electrically connected to the distribution printed circuit board via the electrical contacts.