PRINTED CIRCUIT BOARD ARRANGEMENT FOR WELDING AND CUTTING APPARATUS

• US 20180254713A1
• Filed: 03/08/2018
• Published: 09/06/2018
• Est. Priority Date: 09/18/2015
• Status: Active Grant

• Current Assignee: ESAB Group Incorporated (Enovis Corp.)
• Original Assignee: ESAB Group Incorporated (Enovis Corp.)
• Inventors: Gharib, Awad, Anjanappa, Muniswamappa, Sanghavi, Pranav
• Granted Patent: US 11,081,969 B2
• Time in Patent Office: Days
• CPC Class Codes: B23K 9/013 Arc cutting, gouging, scarfing or desurfacing
• CPC Class Codes: B23K 9/1043 characterised by the electric circuit B23K9/1012 takes precedence
• CPC Class Codes: B23K 9/16 making use of shielding gas selection of media B23K35/38
• CPC Class Codes: B23K 9/32 Accessories earthing connections H01R
• CPC Class Codes: H02M 1/42 Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• CPC Class Codes: H02M 7/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: H05K 1/0263 High current adaptations, e.g. printed high current conductors or using auxiliary non-printed means; Fine and coarse circuit patterns on one circuit board H05K1/0293 takes precedence
• CPC Class Codes: H05K 1/14 Structural association of two or more printed circuits providing electric connection to or between printed circuits H05K1/11, H01R12/00
• CPC Class Codes: H05K 1/181 associated with surface mounted components
• 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 3/303 Surface mounted components, e.g. affixing before soldering, aligning means, spacing means H05K3/32 takes precedence
• CPC Class Codes: H05K 7/1427 Housings
• CPC Class Codes: H05K 7/1432 specially adapted for power drive units or power converters
• CPC Class Codes: H05K 7/14322 wherein the control and power circuits of a power converter are arranged within the same casing
• CPC Class Codes: Y02P 70/10 Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

A power supply to provide welding power. The power supply may include a first printed circuit board (PCB) disposed on a primary side of the power supply; a first set of components mounted on the first PCB; a second PCB disposed on a secondary side of the power supply; a second set of components mounted on the second PCB; a transformer stage coupled to the first PCB and to the second PCB, wherein the first PCB and the second PCB are independently detachable from the power supply.

Claims

1. A power supply to provide welding power, comprising:

a first printed circuit board (PCB) disposed on a primary side of the power supply;

a first set of components mounted on the first PCB;

a second PCB disposed on a secondary side of the power supply;

a second set of components mounted on the second PCB; and

a transformer stage coupled to the first PCB and to the second PCB,

wherein the first PCB and the second PCB are independently detachable from the power supply.

2. The power supply of claim 1, wherein the transformer stage is mounted on a third PCB independently detachable from the power supply.

3. The power supply of claim 1, further comprising a fourth PCB disposed on the primary side of the power supply and coupled to the first PCB.

4. The power supply of claim 1, wherein the first set of components includes a main inverter and power factor correction (PFC) circuit.

5. The power supply of claim 3, wherein an auxiliary power supply is disposed on the fourth PCB.

6. The power supply of claim 1, further comprising a housing, wherein the first PCB is mounted at a first level within the housing with respect to a perpendicular to a plane of the PCB, and wherein the transformer stage is mounted at a second level within the housing with respect to the perpendicular.

7. The power supply of claim 1, wherein the second PCB includes a set of output diodes.

8. The power supply of claim 1, wherein the first PCB comprises a first copper layer having a first thickness, and wherein the second PCB comprises a second copper layer having a second thickness greater than the first thickness.

9. The power supply of claim 6, wherein the transformer stage is mounted to the housing.

10. A method of assembling a welding power supply, comprising:

attaching a first printed circuit board (PCB) on a primary side of the welding power supply;

mounting a first set of components on the first PCB;

attaching a second PCB on a secondary side of the welding power supply;

mounting a second set of components on the second PCB; and

electrically coupling a transformer stage to the first PCB and to the second PCB,

wherein the first PCB and the second PCB are independently detachable from the welding power supply.

11. The method of claim 10, wherein the transformer stage is mounted on a third PCB, the third PCB being independently detachable from the welding power supply.

12. The method of claim 10, further comprising attaching a fourth PCB on the primary side of the welding power supply, wherein the fourth PCB is coupled to the first PCB.

13. The method of claim 10, wherein the welding power supply comprises a housing, the method further comprising mounting the first PCB at a first level within the housing with respect to a perpendicular to a plane of the first PCB, and mounting the transformer stage at a second level within the housing with respect to the perpendicular.

14. The method of claim 10, wherein the first PCB comprises a first copper layer having a first thickness, and wherein the second PCB comprises a second copper layer having a second thickness greater than the first thickness.

15. The method of claim 10, wherein the first set of components includes a main inverter and power factor correction (PFC) circuit.