CN110718380A - High-voltage transformer device - Google Patents
High-voltage transformer device Download PDFInfo
- Publication number
- CN110718380A CN110718380A CN201911040685.1A CN201911040685A CN110718380A CN 110718380 A CN110718380 A CN 110718380A CN 201911040685 A CN201911040685 A CN 201911040685A CN 110718380 A CN110718380 A CN 110718380A
- Authority
- CN
- China
- Prior art keywords
- unit
- voltage
- transformer
- circuit board
- positive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/16—Cascade transformers, e.g. for use with extra high tension
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- X-Ray Techniques (AREA)
Abstract
The invention discloses a high-voltage transformer device, which comprises a storage tank; a high voltage transformer, erected in a tank on one side, comprising: the power supply device comprises a first transformer unit, a second transformer unit and a positive high-voltage terminal, wherein the first transformer unit is configured to generate a positive voltage, the second transformer unit is configured to generate a negative voltage, and the positive high-voltage terminal and the negative high-voltage terminal are respectively arranged on the other side, opposite to the first transformer unit and the second transformer unit, in the box body. A first circuit board disposed between the first transformer unit, the first sidewall and the positive high voltage terminal; and a second circuit board transformer unit disposed between the second circuit boards, the second sidewall and the negative high voltage terminal; wherein the first and second circuit boards are configured to rectify, filter and sample the positive and negative voltages, respectively.
Description
Technical Field
The invention relates to the field of power electronics, in particular to a high-voltage transformer device in a high-voltage generator.
Background
High voltage generators are widely used in the industrial and medical industries and the design of the high voltage transformer arrangement (or high voltage tank in general) in the high voltage generator is crucial for the performance of the high voltage generator. Due to the high voltage (tens of kV to 200 kV) present in high voltage tanks, the insulation of the components themselves in the tanks and the insulation design between these components is very difficult.
In prior art practice, the high pressure component in the high pressure tank is divided into two groups, one of which produces a positive voltage and the other a negative voltage. One group generating the positive voltage includes a transformer generating the positive voltage, a rectifier circuit board, a filter circuit board, a sampling circuit board, and the like. Another set of generating negative voltages includes a transformer that generates negative voltages. Typically, a solid insulator is provided between the two groups to prevent them from electrically interfering with each other. Such as a rectifier circuit board, a filter circuit board, a sampling circuit board, etc. Accordingly, there is a need to improve the prior art high pressure tanks to provide lightweight.
Disclosure of Invention
According to an aspect of the present disclosure, there is provided a high voltage transformer apparatus comprising: a box comprising a first sidewall and a second sidewall; a high voltage transformer, which is vertically disposed at one side in the tank, and includes a first transformer unit configured to generate a positive voltage and a second transformer unit configured to generate a negative voltage; the positive high-voltage terminal and the negative high-voltage terminal are respectively arranged on the other side, opposite to the first transformer unit and the second transformer unit, in the box body.
A first circuit board disposed between the first transformer unit, the first sidewall and the positive high voltage terminal; and a second circuit board disposed between the second transformer unit, the second sidewall and the negative high voltage terminal; the first circuit board is configured to rectify, filter and sample positive voltage generated by the first transformer unit, and the second circuit board is configured to rectify, filter and sample negative voltage generated by the second transformer unit.
Drawings
Fig. 1 is a top view of a high voltage transformer apparatus without a cover according to an exemplary embodiment of the present disclosure;
fig. 2 is a side view of a high voltage transformer arrangement according to an exemplary embodiment of the present disclosure, wherein the side wall of the a-side of the tank is removed;
fig. 3 is a side view of a B-side high voltage transformer arrangement according to an exemplary embodiment of the present disclosure;
fig. 4 is a schematic diagram of a high voltage transformer arrangement that may achieve the same absolute value for the potential of the positive winding and the potential of the negative winding at the same height level, according to an exemplary embodiment of the present disclosure;
fig. 5 is a schematic diagram illustrating a specific structure of the first circuit board and the second circuit board in the high voltage transformer apparatus according to an exemplary embodiment of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. The exemplary embodiments may, however, be embodied in various forms and should not be construed as limited to the examples set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic representations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, specific details are set forth in order to provide a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, apparatus, steps, and so forth. In other instances, well-known structures, methods, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.
Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or may be implemented in different networks and/or processor devices and/or microcontroller devices.
In order to reduce the loss of the high-pressure tank to improve efficiency, and simplify the manufacturing process of the high-pressure tank, and reduce volume and weight, the related art practice faces the following difficulties.
First, in the related art, each of the positive voltage group and the negative voltage group includes a large number of devices and circuit boards, so they may occupy a large space, and the connection between the boards and the devices is complicated.
Second, in the prior art, the solid insulator between the positive voltage group and the negative voltage group is used to completely separate the two groups, which is disadvantageous for miniaturization of the high-pressure tank.
Therefore, there is a need to develop a new type of high voltage transformer device in a high voltage generator that is light in weight, compact in size and more efficient.
The high voltage transformer apparatus of the present disclosure will be described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a top view of a high voltage transformer apparatus without a cover according to an exemplary embodiment of the present disclosure. Fig. 2 is a side view of a high voltage transformer arrangement according to an exemplary embodiment of the present disclosure, wherein the a-side wall of the tank is removed. Figure (a). Fig. 3 is a side view of a B-side high voltage transformer arrangement according to an exemplary embodiment of the present disclosure.
Referring to fig. 1 to 3, the high voltage transformer apparatus includes: a tank 1; a high voltage transformer which is disposed upright on one side in the tank and includes a first transformer unit 2 (including a core 8) and a second transformer unit 2 '(including a core 8')) configured to generate a positive voltage, configured to generate a negative voltage; a positive high voltage terminal 3 and a negative high voltage terminal 3' are respectively arranged on the other sides of the storage tank opposite to the first transformer unit and the second transformer unit; a first circuit board 4 disposed between the first transformer unit and the first wall, between the high-voltage positive terminal and the first side wall; the second circuit board 4' is disposed between the second transformer unit and the second sidewall and between the negative high voltage terminal and the second sidewall. The first circuit board is configured to rectify, filter and sample a positive voltage generated by the first transformer unit. The second circuit board is configured to rectify, filter and sample the negative voltage generated by the second transformer unit. By arranging the first and second transformer units, which generate positive and negative voltages, respectively, on the same side of the tank in the high voltage transformer apparatus, the high voltage transformer apparatus can be manufactured more easily, more compact and lighter in weight.
According to an exemplary embodiment of the present disclosure, the first transformer unit 2 generating a positive voltage and the second transformer unit 2' generating a negative voltage are separated by the insulating plate 5 to provide reliable insulation between the first transformer unit and the second transformer unit.
In addition to being separated by the insulating plate 5 between the first transformer unit and the second transformer unit, the present disclosure also provides various insulating methods, described in detail below, in order to achieve more reliable insulation.
According to an exemplary embodiment of the present disclosure, the positive high voltage terminal 3 and the negative high voltage terminal 3 'are each coated with a first insulating layer 6, 6'.
According to an exemplary embodiment of the present disclosure, the high voltage transformer apparatus further comprises: (second insulating layers 7, 7 'and 10) are arranged between the first circuit boards, the second circuit boards and the respective adjacent areas of the side walls (indicated as 7, 7') and between the components in the tank and the water tank (indicated as bottom 10).
According to an exemplary embodiment of the present disclosure, the tank may be further filled with insulating oil.
Thus, by a combination of one or more of the various insulation methods described above according to the present disclosure, the distance between the high voltage component and the sidewall may be reduced. The combination of the solid insulating material and the insulating oil makes it possible to reduce the distance between the high-voltage components and the side wall of the high-pressure tank as much as possible while satisfying the high-voltage insulation requirements.
According to an exemplary embodiment of the present disclosure, the high voltage transformer arrangement further comprises a tank cap 9.
As shown in fig. 1, according to the present invention, exemplary embodiments of the first circuit board and the second circuit board are respectively associated with a rectifying unit (integration 41, 41 '), a filtering unit (42, 42 '), and a sampling unit (43, 43 ') configured to rectify, filter, and sample the positive voltage generated by the first transformer unit and the negative voltage generated by the second transformer unit, respectively. Compared with a solution in which the rectifying circuit, the filter circuit, and the sampling circuit are separated, by integrating the rectifying unit, the filter unit, and the sampling unit on one circuit board, wiring between various circuit boards can be reduced, which can simplify the assembly process.
According to an exemplary embodiment of the present disclosure, the first transformer unit includes a plurality of positive windings wound in series on the core 8, and the second transformer unit includes a plurality of negative windings wound in series on the core 8' to achieve a higher voltage.
According to an exemplary embodiment of the present disclosure, at the same height level, the voltage of the absolute value winding of the difference between the potentials of the rectifying unit, the filtering unit, and the sampling unit on the first circuit board and the potential of the corresponding positive potential does not exceed 5 kilovolts (kV), and the absolute value of the difference between the potentials of the rectifying unit, the filtering unit, and the sampling unit on the second circuit board and the potential of the corresponding negative winding does not exceed five kilovolts (kV) any more.
Further, according to other embodiments of the present invention, the potentials of the rectifying unit, the filtering unit, and the sampling unit on the first circuit board are the same as the potentials of the corresponding positive windings at the same height level. The potentials of the rectifying unit, the filtering unit and the sampling unit on the second circuit board are the same as the potentials of the corresponding negative windings. In this way, the distance between the transformer and the corresponding circuit board for rectifying, filtering and sampling can be minimized, resulting in a more compact design. Details will be described below with reference to fig. 4.
As shown in fig. 4, the positive voltage generated by the first transformer unit increases from 0 to a specific value such as 90kV in the direction indicated by the arrow. For the voltage on the adjacent first circuit board 4, it increases from 0kV to 90kV in the direction indicated by the arrow from the upper end to the lower end. The negative voltage generated by the second transformer unit decreases from 0 to a certain value, e.g. -90kV, in the direction indicated by the arrow. Likewise, the voltage' on the adjacent second circuit board 4 is also reduced from 0 to-90 kV. In this way, the first and second transformer units and the adjacent circuit boards integrated with the rectifying, filtering and sampling circuits have the same voltage at the same height level, so that the distance plates 4 and 4 between the first and second transformer units and the respective circuits can be minimized', thereby achieving a more compact design. Based on the electrical principle, for a potential difference of several tens of kilovolts between both ends, a certain distance in space must be ensured to avoid discharge caused by such a high voltage. On the other hand, if the potentials at two points in space are equal, the distance between the two ends may be small. In the method of the present disclosure, as shown in the figure. As shown in fig. 4, the voltage of the first transformer unit 2 increases from 0kV to 90kV from top to bottom, and the voltage of the first circuit board 4 adjacent to the first transformer unit 2. Increasing from 0kV to 90kV from top to bottom. In addition, it can be ensured that the voltage of the first transformer unit 2 and the voltage of the first circuit board 4 are almost the same at the same height level. In this way, the first circuit board 4 can be arranged very close to the transformer. Likewise, on the right side, the voltage of the second transformer unit 2 'and the voltage of the second circuit board 4' decrease from 0kV to-90 kV from top to bottom. Moreover, it can be ensured that the voltage of the second transformer unit 2 and the voltage of the second circuit board 4' are almost the same at the same height level. In this way, the second circuit board 4' can be arranged very close to the transformer.
Fig. 5 shows a specific implementation structure of the circuit board 4 (4'). As shown in fig. 1. As shown in fig. 5, the first (second) circuit board integrates a rectifying unit 41 (41 '), a filtering unit 42 (42 '), and a sampling unit 43 (43 '), where the sampling unit is represented by nine resistors, the filtering unit is represented by six capacitors, and the rectifying unit is represented by six diodes (actual implementation is not limited to the manner shown in fig. 5)). The dots connected by the lines indicate that they have the same potential. It can be seen that the point of the sampling unit with a potential of 90kV is arranged adjacent to the point of the rectifying and filtering unit with a potential of 90 kV. The point of the sampling unit with 60kV potential is arranged adjacent to the part of the rectifying and filtering unit with 60kV potential; the point of the sampling unit at a potential of 30kV corresponds to the point of the rectifying-filtering unit at a potential of 30 kV. Here, the first circuit board 4 is taken as an example, and the second circuit board 4 is taken as an example. ' have the same configuration. Therefore, adjacent points of the filtering units have the same potential under the same height level, so that the distance between the sampling, rectifying and filtering devices on the circuit board can be reduced.
According to an example embodiment of the present disclosure, a slot is provided between points having different potentials on the first circuit board and the second circuit board to further improve insulation performance without increasing the size of the board. For example, as shown in part a of fig. 1, a part between the 0kV potential and the 10kV potential of the circuit board is cut off. Other parts having potential differences may be treated in a similar manner and will not be elaborated upon here.
From the above detailed description, those skilled in the art will readily appreciate that a high voltage transformer apparatus according to embodiments of the present disclosure may have one or more of the following advantages.
According to some embodiments of the present disclosure, arranging a first transformer unit generating a positive voltage and a second transformer unit generating a negative voltage vertically on the same side within a tank in a high voltage transformer arrangement allows the high voltage transformer apparatus to be more easily manufactured, more compact and lighter in weight.
According to some embodiments of the present disclosure, by integrating the rectifying unit, the filtering unit, and the sampling unit on the same circuit board, the wiring between various circuit boards may be reduced compared to a solution in which the rectifying circuit, the filtering, is separated.
According to other embodiments of the present disclosure, the combination of the solid insulating material and the insulating oil makes it possible to reduce the distance between the high voltage components and the wall of the high voltage tank as much as possible. The size of the high-voltage transformer device can be further reduced while the high-voltage insulation requirement is met.
According to other embodiments of the present invention, the potentials of the rectifying unit, the filtering unit, and the sampling unit on the first circuit board are the same as the potential of the corresponding positive winding, and the potentials of the rectifying unit, the filtering unit, and the sampling unit on the second circuit board are the same as the potentials of the corresponding negative windings at the same height level. In this way, the distance between the transformer and the corresponding circuit board can be reduced as much as possible for rectification, filtering and sampling, thereby achieving a more compact design.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the exact construction that has been described above and illustrated in the drawings, and that various modifications and changes may be made without departing from the scope of the invention. It is intended that the scope of the disclosure be limited only by the claims appended hereto.
Claims (10)
1. A high voltage transformer arrangement comprising: a water 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 perpendicular to the top side and the bottom side, a high voltage transformer, which is vertically arranged at one side in a tank, comprising a first transformer unit configured to generate a positive voltage and a second transformer unit configured to generate a negative voltage; the positive high-voltage terminal and the negative high-voltage terminal are respectively arranged on the other side, opposite to the first transformer unit and the second transformer unit, in the box body, and the first circuit board is arranged among 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 sidewall and the negative high voltage terminal; the first circuit board is configured to rectify, filter and sample positive voltage generated by the first transformer unit, and the second circuit board is configured to rectify, filter and sample negative voltage generated by the second transformer unit.
2. The high voltage transformer apparatus according to claim 1, wherein the first transformer unit includes a plurality of positive windings, and the second transformer unit includes a plurality of negative windings, wherein the positive voltages generated by the plurality of positive windings of the first transformer unit are gradually increased from zero potential along the up-down direction of the tank from top to bottom, wherein the negative voltages generated by the plurality of negative windings of the second transformer unit are gradually decreased from zero potential along the up-down direction of the tank, and the absolute values of the voltage potentials are the same for the positive windings and the negative windings located on the same horizontal line.
3. The high voltage transformer arrangement according to claim 1, wherein said first circuit board is integrated with a rectifying unit for rectifying the positive voltage generated by said first transformer unit, a filtering unit for filtering the positive voltage generated by said first transformer unit, and a sampling unit for sampling the positive voltage generated by the first transformer unit, respectively.
4. The high voltage transformer arrangement of claim 3, wherein the rectifying unit, the filtering unit and the sampling unit on the first circuit board have a first voltage potential and the respective positive winding has a second voltage potential at the same height level, wherein the absolute value of the difference between the first voltage potential and the second voltage potential does not exceed five kilovolts.
5. The high voltage transformer arrangement of claim 3, wherein the rectifying unit, the filtering unit and the sampling unit on the first circuit board have a first voltage potential and the respective positive winding has a second voltage potential at the same height level, 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 connected to 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 arrangement of claim 6, wherein the rectifying unit, the filtering unit and the sampling unit on the second circuit board have a first voltage potential and the respective positive winding has a second voltage potential at the same height level, wherein the absolute value of the difference between the first voltage potential and the second voltage potential does not exceed five kilovolts.
8. The high voltage transformer arrangement of claim 6, wherein the rectifying unit, the filtering unit and the sampling unit on the second circuit board have a first voltage potential and the respective positive winding has a second voltage potential at the same height level, wherein the first voltage potential is equal to the second voltage potential.
9. The high-voltage transformer apparatus according to claim 1, wherein a groove is provided between points of different potentials on the first circuit board and the second circuit board.
10. The high voltage transformer arrangement of claim 1, wherein the first transformer unit and the second transformer unit are electrically separated by an insulating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911040685.1A CN110718380A (en) | 2019-10-30 | 2019-10-30 | High-voltage transformer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911040685.1A CN110718380A (en) | 2019-10-30 | 2019-10-30 | High-voltage transformer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110718380A true CN110718380A (en) | 2020-01-21 |
Family
ID=69213467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911040685.1A Pending CN110718380A (en) | 2019-10-30 | 2019-10-30 | High-voltage transformer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110718380A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148515A (en) * | 2018-02-13 | 2019-08-20 | 台达电子企业管理（上海）有限公司 | High pressure potential device |
-
2019
- 2019-10-30 CN CN201911040685.1A patent/CN110718380A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148515A (en) * | 2018-02-13 | 2019-08-20 | 台达电子企业管理（上海）有限公司 | High pressure potential device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7903432B2 (en) | High-voltage power generation system and package | |
| US11271492B2 (en) | Medium voltage planar DC bus distributed capacitor array | |
| US9087670B2 (en) | Electric potential control of high voltage insulation | |
| JP5490994B2 (en) | X-ray generator | |
| US5774349A (en) | High-voltage generator | |
| US10490344B2 (en) | High voltage transformer apparatus | |
| KR200412212Y1 (en) | High voltage tube tank of movable x-ray generator | |
| CN110718380A (en) | High-voltage transformer device | |
| JP4939866B2 (en) | DC high voltage generator | |
| JP6670704B2 (en) | High voltage generator and X-ray high voltage device using the same | |
| JP5586284B2 (en) | High voltage generator and X-ray high voltage apparatus using the same | |
| KR102448639B1 (en) | Rectifier for Generating Very High Voltage DC | |
| CN211045235U (en) | High-voltage cascade isolation transformer with solid insulation structure | |
| CN114171309A (en) | High-voltage isolation voltage-withstanding series-connection type planar transformer and transformer voltage compensation method | |
| JP7301240B2 (en) | Boost circuit and voltage generator | |
| JP3021122B2 (en) | DC high voltage generator and X-ray apparatus using the same | |
| JP2715559B2 (en) | High voltage generation circuit | |
| CN218769047U (en) | Unipolar high-voltage transformer | |
| JP7209875B2 (en) | Boost circuit and voltage generator | |
| CN114051308B (en) | High voltage power supply system for neutron generator | |
| US11894175B2 (en) | System to optimize voltage distribution along high voltage doubler string | |
| JP3901981B2 (en) | DC high voltage unit | |
| CN115023016B (en) | Insulation assembly for high-pressure oil tank and high-pressure oil tank | |
| US3886412A (en) | Flexible snake-like string of components encased in tubular sheath immersed in oil | |
| JP3266810B2 (en) | Multi-stage voltage doubler rectifier circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200121 |