Transformer having insulation means formed by a mounting plate suitable for a printed circuit

• US 20010022548A1
• Filed: 01/25/2001
• Published: 09/20/2001
• Est. Priority Date: 01/27/2000
• Status: Abandoned Application

• Current Assignee: US Philips Corporation (Koninklijke Philips N.V.)
• Original Assignee: US Philips Corporation (Koninklijke Philips N.V.)
• Inventors: Hasler, Rudolf Josef
• Application Number:
  US09/769,182
• Publication Number:
  US 20010022548A1
• Time in Patent Office: Days
• US Class Current: 336/196
• CPC Class Codes: H01F 27/324 Insulation between coil and core, between different winding sections, around the coil; Other insulation structures

Abstract

In a transformer (13) having a primary winding (19) and a secondary winding (20) and a primary magnet core (21) with at least one primary end face (22) and a secondary magnet core (23) with at least one secondary end face (24) and insulation means in a gap (25) between the at least one primary end face (22) and the at least one secondary end face (24), the insulation means are formed with the aid of a mounting plate (26) which is suitable as a mounting plate (26) for a printed circuit.

Claims

1. A transformer (13) having the means defined hereinafter, i.e.

a primary winding (19), to which a primary voltage (U4) can be applied,

a secondary winding (20), from which at least one secondary voltage (U5) can be taken, and

a primary magnet core (21), which is adapted to carry the primary winding (19) and which has at least one primary end face (22), and

a secondary magnet core (23), which is adapted to carry the secondary winding (20) and which has at least one secondary end face (24),

the at least one primary end face (22) and the at least one secondary end face (24) facing one another with an intermediate gap (25), and insulation means in the gap, characterized in that the insulation means are formed with the aid of a mounting plate (26) which is suitable as a mounting plate for a printed circuit.

3. A transformer (13) as claimed in

claim 1

, characterized in that the mounting plate (26) forms part of a printed circuit.

4. A transformer (13) as claimed in

claim 1

, characterized in that

the mounting plate (26) has a first conductive layer (34) at its side which faces the primary magnet core (21), which layer has a primary-side recess (35) for the at least one primary end face (22), and

the mounting plate (26) has a second conductive layer (36) at its side which faces the secondary magnet core (23), which layer has a secondary-side recess (37) for the at least one secondary end face (24).

2. A transformer (13) as claimed in

claim 2

, characterized in that the mounting plate (26) has a such a dimension (P) that a minimum distance (M) is guaranteed between parts (15, 16, 19, 21, 27, 34) of the transformer (13) which are connected to the primary voltage (U4) and parts (17, 18, 20, 23, 28, 36) of the transformer (13) which are connected to the secondary voltage (U5).

5. A power pack (8) having a transformer (13), which transformer (13) has the means defined hereinafter, i.e.

a primary winding (19), to which a primary voltage (U4) can be applied,

a secondary winding (20), from which at least one secondary voltage (U5) can be taken, and

a primary magnet core (21), which is adapted to carry the primary winding (19) and which has at least one primary end face (22), and

a secondary magnet core (23), which is adapted to carry the secondary winding (20) and which has at least one secondary end face (24),

the at least one primary end face (22) and the at least one secondary end face (24) facing one another with an intermediate gap (25), and insulation means in the gap, characterized in that the insulation means are formed with the aid of a mounting plate (26) which is suitable as a mounting plate for a printed circuit.

6. A power pack (8) as claimed in

claim 5

, characterized in that the mounting plate (26) has a such a dimension (P) that a minimum distance (M) is guaranteed between parts (15, 16, 19, 21, 27, 34) of the transformer (13) which are connected to the primary voltage (U4) and parts (17, 18, 20, 23, 28, 36) of the transformer (13) which are connected to the secondary voltage (U5).

7. A power pack (8) as claimed in

claim 6

, characterized in that the mounting plate (26) forms part of a printed circuit.

8. A power pack (8) as claimed in

claim 7

, characterized in that

the mounting plate (26) has a first conductive layer (34) at its side which faces the primary magnet core (21), which layer has a primary-side recess (35) for the at least one primary end face (22), and

the mounting plate (26) has a second conductive layer (36) at its side which faces the secondary magnet core (23), which layer has a secondary-side recess (37) for the at least one secondary end face (24).

9. An apparatus (1) having a transformer (13), which transformer (13) has the means defined hereinafter, i.e.

a primary winding (19), to which a primary voltage (U4) can be applied,

a secondary winding (20), from which at least one secondary voltage (U5) can be taken, and

a primary magnet core (21), which is adapted to carry the primary winding (19) and which has at least one primary end face (22), and

a secondary end face (23), which is adapted to carry the secondary winding (20) and which has at least one secondary end face (24),

the at least one primary end face (22) and the at least one secondary end face (24) facing one another with an intermediate gap (25), and

insulation means in the gap, characterized in that the insulation means are formed with the aid of a mounting plate (26) which is suitable as a mounting plate for a printed circuit.

10. An apparatus (1) as claimed in

claim 9

, characterized in that the mounting plate (26) has a such a dimension (P) that a minimum distance (M) is guaranteed between parts (15, 16, 19, 21, 27, 34) of the transformer (13) which are connected to the primary voltage (U4) and parts (17, 18, 20, 23, 28, 36) of the transformer (13) which are connected to the secondary voltage (U5).

11. An apparatus (1) as claimed in

claim 10

, characterized in that the mounting plate (26) forms part of a printed circuit.

12. A apparatus (1) as claimed in

claim 11

, characterized in that

the mounting plate (26) has a first conductive layer (34) at its side which faces the primary magnet core (21), which layer has a primary-side recess (35) for the at least one primary end face (22), and

the mounting plate (26) has a second conductive layer (36) at its side which faces the secondary magnet core (23), which layer has a secondary-side recess (37) for the at least one secondary end face (24).