# US 2019/0172632 A1 · Method and device for insulation of high-voltage generator tank > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0172632 A1 - Document ID: US20190172632A1 - Status: Published application - Kind: A1 - Application number: 16/266,046 - Filed: 2019-02-02 - Published: 2019-06-06 - Earliest claimed: 2014-06-23 - Assignees: Shanghai United Imaging Healthcare Co., Ltd. - Applicants: Shanghai United Imaging Healthcare Co., Ltd. - Inventors: Yunhua ZHANG; Jieyong MENG; Qingchang CHEN; Yihong LIU; Shilin SHEN - Web page: https://patentgrep.com/patent/US20190172632A1 ## CPC - H01F 27/325: {Coil bobbins (formers for coils in general H01F5/02)} - H01F 27/02: Casings - H01F 27/04: Leading of conductors or axles through casings, e.g. for tap-changing arrangements - H01F 27/12: Oil cooling - H01F 27/14: Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling - H01F 27/245: made from sheets, e.g. grain-oriented (H01F27/26 takes precedence) - H01F 27/2804: {Printed windings} - H01F 27/2823: {Wires (H01F27/2866 takes precedence)} - H01F 27/324: {Insulation between coil and core, between different winding sections, around the coil; Other insulation structures} - H01F 27/2809: {on stacked layers} - H01F 27/32: Insulating of coils, windings, or parts thereof - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ## Abstract The present disclosure relates to a tank of a high-voltage generator including a tank body and a tank lid. There is an opening in the tank lid. The opening is connected to the bellows so as to counteract the volume change of the transformer oil and avoid generation of bubbles. The tank includes a positive transformer, a negative transformer, a bellows, and other components. The high-voltage winding is embedded in the PCBs. The outer insulating bushing is covered by the PCBs so as to improve the insulativity between the turns of the high-voltage winding. In addition, oil barriers may be placed between the positive and the negative transformers, or between the transformers and the ground so as to eliminate the bridge breakdown effect and make the electric field uniform. By means of said measures, the present disclosure improves the stability of the high-voltage generator. ## Claims ### Claim at position 1 1-4. (canceled) ### Claim 5 A transformer for a high-voltage generator tank, comprising: an inner insulating bushing; an outer insulating bushing, the inner insulating bushing being inside the outer insulating bushing; a low-voltage winding wound on the inner insulating bushing; a high-voltage winding wound outside the outer insulating bushing; more than one printed circuit board (PCB) outside the outer insulating bushing, the more than one PCB being configured in a stack structure; and an iron core going through the inner insulating bushing. ### Claim 6 (depends on 5) The transformer of claim 5, wherein the more than one PCB comprises a rectifier block. ### Claim 7 (canceled) ### Claim 8 (depends on 5) The transformer of claim 5, wherein a first oil barrier is set on upper and lower surfaces of the stack structure of the more than one PCB. ### Claim 9 (depends on 8) The transformer of claim 8, wherein the transformer further comprises a sampling board. ### Claim 10 (depends on 9) The transformer of claim 9, wherein one end of the stack structure of the more than one PCB is connected with the first oil barrier, and the other end is connected with the sampling board. ### Claim 11 (depends on 5) The transformer of claim 5, wherein the transformer further comprises one or more second oil barriers, wherein the one or more second oil barriers are set in at least one of following positions: a position on the upper and/or lower surface of the stack structure of the more than one PCB, a position between the transformer and the ground, and a position between the transformer and the tank. ### Claim 12 (depends on 11) The transformer of claim 11, wherein the one or more second oil barriers are configured as a single piece, or an oil barrier array. ### Claim 13 (depends on 12) The transformer of claim 12, wherein the oil barrier array is arranged in a side-to-side manner, or in a front-to-back manner. ### Claim 14 (depends on 11) The transformer of claim 11, wherein one of the one or more second oil barriers comprises a first through hole. ### Claim at position 12 15-20. (canceled) ### Claim 21 (depends on 11) The transformer of claim 11, further comprising a positive transformer and a negative transformer, wherein the one or more second oil barriers are placed between the positive transformer and the negative transformer. ### Claim 22 (depends on 5) The transformer of claim 5, wherein the more than one PCB configured in the stack structure is equally spaced. ### Claim 23 (depends on 5) The transformer of claim 5, wherein each of the more than one PCB includes a second through hole, and the outer insulating bushing goes through the second through hole. ### Claim 24 (depends on 23) The transformer of claim 23, wherein the high-voltage winding is wound around the second through hole of the more than one PCB. ### Claim 25 (depends on 5) The transformer of claim 5, wherein the high-voltage winding is buried in the more than one PCB. ### Claim 26 (depends on 5) The transformer of claim 5, wherein there is a gap between the inner insulating bushing and the outer insulating bushing, and an insulating paper layer is set in the gap. ### Claim 27 (depends on 5) The transformer of claim 5, wherein there is a gap between the inner insulating bushing and the outer insulating bushing, and a fixture is set in the gap. ### Claim 28 (depends on 5) The transformer of claim 5, wherein an insulating paper layer is set between the inner insulating bushing and the iron core. ### Claim 29 (depends on 5) The transformer of claim 5, wherein at least one oil passage is formed on an outer side surface of the outer insulating bushing to allow oil in the high-voltage generator tank to flow through. ### Claim 30 (depends on 29) The transformer of claim 29, wherein one of the at least one oil passage extends along a direction vertical or parallel to a cross section of the outer insulating bushing, the cross section being vertical to the outer side surface of the outer insulating bushing. ### Claim 31 (depends on 29) The transformer of claim 29, wherein the outer side surface of the outer insulating bushing does not face the inner insulating bushing.