High voltage transformer apparatus

Patent metadata

Field	Value
Publication number	US-10490344-B2
Application number	US-201916251647-A
Country	US
Kind code	B2
Filing date	Jan 18, 2019
Priority date	Feb 13, 2018
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

A high voltage transformer apparatus, including: a tank; a high voltage transformer, disposed upright on one side within the tank, including a first transformer unit configured to generate a positive voltage and a second transformer unit configured to generate a negative voltage; a positive high voltage terminal and a negative high voltage terminal respectively disposed on the other side within the tank opposite to the first transformer unit and the second transformer unit; a first circuit board disposed between the first transformer unit, the first side wall, and the positive high voltage terminal; and a second circuit board disposed between the second transformer unit, the second side wall, and the negative high voltage terminal; wherein the first and second circuit boards are respectively configured to rectify, filter and sample the positive and negative voltages.

First claim

What is claimed is:

1. A high voltage transformer apparatus, comprising:
a tank, comprising a first side wall, a second side wall, a top side and a bottom side, wherein the first side wall and the second side wall extend in the perpendicular to the the top side and the bottom side;
a high voltage transformer, disposed upright on one side within the tank, comprising a first transformer unit configured to generate a positive voltage and a second transformer unit configured to generate a negative voltage;
a positive high voltage terminal and a negative high voltage terminal, respectively disposed on the other side within the tank opposite to the first transformer unit and the second transformer unit;
a first circuit board, disposed between the first transformer unit, the positive high voltage terminal and the first side wall; and
a second circuit board disposed between the second transformer unit and the second side wall, and the negative high voltage terminal;
wherein the first circuit board is configured to rectify, filter and sample the positive voltage generated by the first transformer unit, and the second circuit board is configured to rectify, filter and sample the negative voltage generated by the second transformer unit.

2. The high voltage transformer apparatus according to claim 1 , wherein the first transformer unit comprises a plurality of positive windings, the second transformer unit comprises a plurality of negative windings,
wherein the positive voltage generated by the plurality of positive windings of the first transformer unit gradually increases from zero potential along the vertical direction of the tank from top to bottom;
wherein the negative voltage generated by the plurality of negative windings of the second transformer unit gradually decreases from zero potential along the vertical direction of the tank from top to bottom; and
for the positive winding and the negative winding positioned at the same horizontal line, absolute values of voltage potentials are the same.

3. The high voltage transformer apparatus according to claim 1 , wherein the first circuit board is respectively integrated with a rectifying unit for rectifying the positive voltage generated by the first transformer unit, a filtering unit for filtering the positive voltage generated by the first transformer unit, and a sampling unit for sampling the positive voltage generated by the first transformer unit.

4. The high voltage transformer apparatus according to claim 3 , wherein at the same height level, the rectifying unit, the filtering unit, and the sampling unit on the first circuit board have a first voltage potential, and the corresponding positive windings has a second voltage potential, wherein the absolute values of differences are no more than five kilovolts between the first voltage potential and the second voltage potential.

5. The high voltage transformer apparatus according to claim 3 , wherein at the same height level, the rectifying unit, the filtering unit, and the sampling unit on the first circuit board have a first voltage potential, and the corresponding positive windings has a second voltage potential, wherein the first voltage potential is equal to the second voltage potential.

6. The high voltage transformer apparatus according to claim 1 , wherein the second circuit board is integrated with a rectifying unit for rectifying the negative voltage generated by the second transformer unit, a filtering unit for filtering the negative voltage generated by the second transformer unit, and a sampling unit for sampling the negative voltage generated by the second transformer unit.

7. The high voltage transformer apparatus according to claim 6 , wherein at the same height level, the rectifying unit, the filtering unit, and the sampling unit on the second circuit board have a first voltage potential, and the corresponding positive windings has a second voltage potential, wherein the absolute values of differences are no more than five kilovolts between the first voltage potential and the second voltage potential.

8. The high voltage transformer apparatus according to claim 6 , wherein at the same height level, the rectifying unit, the filtering unit, and the sampling unit on the second circuit board have a first voltage potential, and the corresponding positive windings has a second voltage potential, wherein the first voltage potential is equal to the second voltage potential.

9. The high voltage transformer apparatus according to claim 1 , wherein slots are disposed between points having different potentials on the first circuit board and the second circuit board.

10. The high voltage transformer apparatus according to claim 1 , wherein the first transformer unit and the second transformer unit are electrically separated by an insulating plate.

11. The high voltage transformer apparatus according to claim 1 , further comprising a first insulating layer, which is coated with the positive high voltage terminal and the negative high voltage terminal, respectively.

12. The high voltage transformer apparatus according to claim 1 , further comprising a second insulating layer, which is disposed between the first circuit board and the first side wall, and disposed between the second circuit board and the second side wall, and disposed between components inside the tank and the bottom side of the tank.

13. The high voltage transformer apparatus according to claim 1 , wherein the tank is filled with insulating oil.

14. The high voltage transformer apparatus according to claim 1 , further comprising a tank cover, which is used to cover the top side of the tank.

Assignees

• Delta Electronics Shanghai Co

Inventors

• Wei Dong
• Tao Yao
• Jin Hongyuan
• Jiao Dezhi

Classifications

• H01F30/06

  characterised by the structure · CPC title

• H01F27/42

  Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils (circuits for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output H02P13/00; impedance networks H03H) · CPC title

• H01F27/324 Primary

  Insulation between coil and core, between different winding sections, around the coil; Other insulation structures · CPC title

• H01F27/29

  Terminals; Tapping arrangements {for signal inductances} · CPC title

• H01F27/02

  Casings · CPC title