CN112821786A - Compact negative high-voltage direct-current power supply - Google Patents
Compact negative high-voltage direct-current power supply Download PDFInfo
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- CN112821786A CN112821786A CN202110153318.3A CN202110153318A CN112821786A CN 112821786 A CN112821786 A CN 112821786A CN 202110153318 A CN202110153318 A CN 202110153318A CN 112821786 A CN112821786 A CN 112821786A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/10—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in series, e.g. for multiplication of voltage
- H02M7/103—Containing passive elements (capacitively coupled) which are ordered in cascade on one source
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/10—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in series, e.g. for multiplication of voltage
- H02M7/103—Containing passive elements (capacitively coupled) which are ordered in cascade on one source
- H02M7/106—With physical arrangement details
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- Power Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The invention provides a compact negative high-voltage direct-current power supply, and relates to the technical field of high-voltage power supplies. The device comprises a grounding shell and a C-W voltage-multiplying tower, an intermediate frequency transformer, a high-voltage measuring end and a high-voltage leading-out end which are arranged in the grounding shell, wherein a top cover is detachably arranged at the top of the grounding shell, an intermediate frequency input terminal is arranged on the top cover, the intermediate frequency input terminal, the intermediate frequency transformer, the C-W voltage-multiplying tower and the high-voltage leading-out end are sequentially and electrically connected, and the C-W voltage-multiplying tower is electrically connected with the high-voltage measuring end. The invention ensures compact structure of the power supply and avoids unstable factors of the power supply, such as ignition and discharge, and the like, which are caused by over-strong local electric field in a limited space; the structure is simple and clear, and modular manufacturing can be realized; the volume of the transformer is effectively reduced by adopting the intermediate frequency transformer, the adjustment of negative high voltage in the range from zero negative to negative 180 kilovolts can be realized, the adjustment range is wide, and the application range is wide.
Description
Technical Field
The invention relates to the technical field of high-voltage power supplies, in particular to a negative high-voltage direct-current power supply structure miniaturization technology.
Background
Compact neutron generators require the provision of a compact negative high voltage dc power supply. In addition, the application range of the compact negative high-voltage power supply is very wide, such as industries of aviation, modern agriculture, medical treatment and the like and the fields of ion implanters, industrial CT, radars and the like, the high-voltage power supply is a very key component, the performance of the high-voltage power supply directly determines whether the whole machine can work or not and the stability of the working state, and the small size and light weight of the high-voltage power supply are key technologies for realizing miniaturization, portability and mobility of the whole machine related to the fields. However, the compact high-voltage power supply has a small size, which inevitably results in a large spatial electric field intensity of the high-voltage power supply, and the large electric field intensity is a main cause of ignition and instability of the power supply, so how to optimize the structure of the high-voltage power supply is a technical problem that the compact high-voltage power supply must solve. Therefore, the invention provides a negative high-voltage direct-current power supply structure which is compact in structure and uniform in internal electric field distribution.
Disclosure of Invention
The invention aims to provide a compact negative high-voltage direct-current power supply aiming at the technical problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a compact negative high-voltage direct-current power supply comprises a grounding outer shell and a C-W voltage-multiplying tower, an intermediate-frequency transformer, a high-voltage measuring end and a high-voltage leading-out end which are arranged in the grounding outer shell, wherein a top cover is detachably arranged at the top of the grounding outer shell, an intermediate-frequency input terminal is arranged on the top cover, the intermediate-frequency input terminal, the intermediate-frequency transformer, the C-W voltage-multiplying tower and the high-voltage leading-out end are sequentially and electrically connected, and the C-W voltage-multiplying tower is.
Further, in some embodiments of the present invention, a sealing rubber ring is disposed between the top cover and the grounded outer casing.
Further, in some embodiments of the present invention, the intermediate frequency transformer includes a magnetic core, a supporting frame plate, an isolating frame plate, a fastening member, a polyimide insulating layer, a highland barley paper insulating layer, a primary coil, a secondary coil, and a high voltage shielding ball, the supporting frame plate is fixed on an inner wall of a right side of the grounded outer casing by the fastening member, two opposite E-shaped magnetic cores are disposed between the two supporting frame plates, the two isolating frame plates are disposed between the magnetic cores, the polyimide insulating layer, the primary coil, the highland barley paper insulating layer, and the secondary coil are wound from inside to outside on a middle column of the E-shaped magnetic core, an input end of the primary coil is connected to the intermediate frequency input terminal, an output end of the secondary coil is connected to the C-W voltage doubling tower, and one output end of the secondary coil is connected to.
Further, in some embodiments of the present invention, the C-W voltage-multiplying tower includes an upper fixing plate, an inner casing, and an input connection wire, the inner casing is provided therein with a main capacitor skeleton plate, an auxiliary capacitor skeleton plate, a measurement circuit skeleton plate, a grading ring, and a connection plate, the upper fixing plate is disposed on the top of the inner casing, the inner casing is filled with transformer oil, the main capacitor skeleton plate, the auxiliary capacitor skeleton plate, and the measurement circuit skeleton plate are all vertically disposed, and the upper ends thereof are all clamped on the upper fixing plate, the main capacitor skeleton plate and the auxiliary capacitor skeleton plate are both provided with a plurality of capacitor groups on the front and back sides, the grading rings are disposed at equal intervals from top to bottom, the inner sides of the grading rings are respectively connected with the main capacitor skeleton plate, the auxiliary capacitor skeleton plate, and the measurement circuit skeleton plate, the measurement circuit skeleton plate is uniformly provided with a plurality of measurement resistors on the, two ends of the connecting plate are respectively connected with the main capacitor framework plate and the auxiliary capacitor framework plate, the connecting plate at the lowest layer is provided with a protective resistor, the other connecting plates are provided with diodes, one end of an input wiring is connected with the capacitor group at the uppermost layer of the main capacitor framework plate, and the other end of the input wiring is connected with the output end of a secondary coil of the intermediate frequency transformer.
Preferably, in some embodiments of the present invention, the main capacitor skeleton plate, the auxiliary capacitor skeleton plate, and the measurement circuit skeleton plate are all provided with a plurality of grooves.
Preferably, in some embodiments of the present invention, the capacitor group includes an auxiliary capacitor and a main capacitor connected in sequence, the number of the auxiliary capacitor and the number of the main capacitor are the same, and the capacitor group on the main capacitor skeleton plate is arranged in the same manner as the capacitor group on the auxiliary capacitor skeleton plate.
Preferably, in some embodiments of the present invention, the center lines of the main capacitor skeleton plate, the auxiliary capacitor skeleton plate, and the measurement circuit skeleton plate in the vertical direction are distributed in a regular triangle.
Further, in some embodiments of the present invention, the high voltage measuring terminal is disposed on the right side of the C-W voltage-multiplying tower, and includes an aviation plug, a measuring terminal, and a wiring base; aviation plug, measurement terminal all install on the wiring base, and the front end all stretches out the positive side of ground connection shell body outside, and the wiring base is fixed in on the ground connection shell body leading flank inner wall.
Further, in some embodiments of the present invention, the high-voltage lead-out end includes a high-voltage metal connector, an insulating member, and a connecting sealing metal flange, one side of the connecting sealing metal flange is connected to the high-voltage metal connector, and the other side of the connecting sealing metal flange is connected to the insulating member with a skirt, a conductive spring and a movable metal plug are disposed inside the high-voltage metal connector, one end of the conductive spring is fixedly connected to the high-voltage metal connector, and the other end of the conductive spring is connected to the movable metal plug, one side of the movable metal plug, which is far away from the conductive spring, can slidably penetrate through the connecting sealing metal flange and extend into the insulating member, the insulating member is flange-connected to a high-voltage lead-out end interface disposed on the right side of the grounding shell, an O-shaped sealing ring is.
In summary, due to the adoption of the technical scheme, the beneficial technical effects of the invention are as follows:
the negative high-voltage direct-current power supply has a compact structure and reasonable internal electric field distribution, and avoids power supply instability factors such as ignition and discharge caused by over-strong local electric field in a limited space while ensuring compact structure of the power supply; the structure is simple and clear, and modular manufacturing can be realized; the volume of the transformer is effectively reduced by adopting the intermediate frequency transformer, the adjustment of negative high voltage in the range from zero negative to negative 180 kilovolts can be realized, the adjustment range is wide, and the application range is wide.
Drawings
FIG. 1 is a schematic diagram of a compact negative high voltage DC power supply according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of the IF transformer shown in FIG. 1;
FIG. 3 is a schematic diagram of the structure of the C-W pressure doubling column of FIG. 1;
fig. 4 is a schematic diagram of an arrangement structure of the main capacitors and the auxiliary capacitors on the main capacitor skeleton plate in fig. 3, wherein a is a front view, and B is a back view;
FIG. 5 is a schematic view of the high voltage lead-out end of FIG. 1
FIG. 6 is a schematic circuit diagram of a compact negative high voltage DC power supply in accordance with an embodiment of the present invention;
FIG. 7 is a simulated rainbow diagram of the spatial voltage distribution of the compact negative high voltage DC power supply according to an embodiment of the present invention;
the labels in the figure are: 1-grounded outer shell, 2-top cover, 3-sealing rubber ring, 4-intermediate frequency transformer, 5-intermediate frequency input terminal, 6-high voltage measuring terminal, 7-C-W voltage doubling tower, 8-inner shell, 9-high voltage leading-out terminal, 10-upper fixing plate, 11-main capacitor framework plate, 12-auxiliary capacitor framework plate, 13-measuring circuit framework plate, 14-input wiring, 15-auxiliary capacitor, 16-equalizing ring, 17-protective resistor, 18-diode, 19-main capacitor, 20-measuring resistor, 21-connecting plate, 22-magnetic core, 23-supporting framework plate, 24-isolating framework plate, 25-fastener, 26-polyimide insulating layer and 27-highland barley paper insulating layer, 28-primary coil, 29-secondary coil, 30-high-voltage shielding metal ball, 31-aviation plug, 32-measuring binding post, 33-wiring base, 34-high-voltage leading-out terminal interface flange, 35-groove, 36-high-voltage metal joint, 37-movable metal plug, 38-insulating part, 39-connecting sealing metal flange, 40-O-shaped sealing ring and 41-conductive spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
Referring to fig. 1-5, the compact negative high voltage dc power supply provided in this embodiment includes a grounded outer casing 1, and a C-W voltage-multiplying tower 7, an intermediate frequency transformer 4, a high voltage measuring terminal 6, and a high voltage leading-out terminal 9 disposed in the grounded outer casing 1, wherein a top cover 2 is detachably mounted on the top of the grounded outer casing 1, the top cover 2 is provided with an intermediate frequency input terminal 5, the intermediate frequency transformer 4, the C-W voltage-multiplying tower 7, and the high voltage leading-out terminal 9 are electrically connected in sequence, and the C-W voltage-multiplying tower 7 is electrically connected with the high voltage measuring terminal; and a sealing rubber ring 3 is arranged between the top cover 2 and the grounding shell body 1.
The medium-frequency transformer 4 comprises magnetic cores 22, support frame plates 23, isolation frame plates 24, fasteners 25, polyimide insulating layers 26, highland barley paper insulating layers 27, primary coils 28 and secondary coils 29, the support frame plates 23 are fixed on the inner wall of the right side of the grounding outer shell 1 through the fasteners 25, two opposite E-shaped magnetic cores 22 are arranged between the two support frame plates 23, the two isolation frame plates 24 are arranged between the magnetic cores 22, the polyimide insulating layers 26, the primary coils 28, the highland barley paper insulating layers 27 and the secondary coils 29 are wound on middle columns of the E-shaped magnetic cores 22 from inside to outside, the input ends of the primary coils 28 are connected with a medium-frequency input terminal 5, the output ends of the secondary coils 29 are connected with a C-W voltage doubling tower 7, and one output end of the secondary coils 29 is provided with two high-voltage shielding metal balls 30.
The C-W voltage-multiplying tower 7 comprises an upper fixing plate 10, an inner shell 8 and an input connection wire 14, wherein a main capacitor framework plate 11, an auxiliary capacitor framework plate 12, a measuring circuit framework plate 13, a voltage-sharing ring 16 and a connecting plate 21 are arranged in the inner shell 8, the inner shell 8 is filled with transformer oil, the main capacitor framework plate 11, the auxiliary capacitor framework plate 12 and the measuring circuit framework plate 13 are vertically arranged, the upper ends of the main capacitor framework plate, the auxiliary capacitor framework plate 12 and the measuring circuit framework plate 13 are clamped on the upper fixing plate, a plurality of capacitor sets are respectively distributed on the front side and the back side of the main capacitor framework plate 11 and the auxiliary capacitor framework plate 12, a plurality of voltage-sharing rings 16 are arranged from top to bottom at equal intervals, the inner sides of the voltage-sharing rings 16 are respectively connected with the main capacitor framework plate 11, the auxiliary capacitor framework plate 12 and the measuring circuit framework plate 13, a plurality of measuring resistors 20 are uniformly distributed on, two ends of a connecting plate 21 are respectively connected with a main capacitor framework plate 11 and an auxiliary capacitor framework plate 12, a protective resistor 17 is arranged on the connecting plate 21 at the lowest layer, diodes 18 are arranged on the other connecting plates 21, one end of an input wiring 14 is connected with a capacitor group at the uppermost layer of the main capacitor framework plate 11, and the other end of the input wiring is connected with the output end of a secondary coil 29 of the intermediate frequency transformer 4; a plurality of grooves 35 are formed in the main capacitor framework plate 11, the auxiliary capacitor framework plate 12 and the measuring circuit framework plate 13; the capacitor group comprises an auxiliary capacitor 15 and a main capacitor 19 which are connected in sequence, the number of the auxiliary capacitors 15 is the same as that of the main capacitors 19, and the arrangement mode of the capacitor group on the main capacitor framework plate 11 is the same as that of the capacitor group on the auxiliary capacitor framework plate 12; the central lines of the main capacitor framework plate 11, the auxiliary capacitor framework plate 12 and the measuring circuit framework plate 13 in the vertical direction are distributed in a regular triangle.
The high-voltage measuring end 6 is arranged on the right side of the C-W voltage-multiplying tower 7 and comprises an aviation plug 31, a measuring wiring terminal 32 and a wiring base 33; aviation plug 31, measurement terminal 32 all install on wiring base 33, and outside the front end all stretched out ground connection shell body 1, wiring base 33 was fixed in on the ground connection shell body 1 leading flank inner wall. The high-voltage leading-out end 9 comprises a high-voltage metal connector 36, an insulating part 38 and a connecting sealing metal flange 39, one side of the connecting sealing metal flange 39 is connected with the high-voltage metal connector 36, the other side of the connecting sealing metal connector 38 is provided with a skirt edge, a conductive spring 41 and a movable metal plug 37 are arranged inside the high-voltage metal connector 36, one end of the conductive spring 41 is fixedly connected with the high-voltage metal connector 36, the other end of the conductive spring is connected with the movable metal plug 37, one side, far away from the conductive spring 41, of the movable metal plug 37 can penetrate through the connecting sealing metal flange 39 in a sliding mode and stretch into the insulating part 38, the insulating part 38 is connected with a high-voltage leading-out end interface flange 34 arranged on the right side of the grounding shell body 1, an O-shaped sealing ring 40 is arranged at the joint of the.
1-grounded outer shell, 2-top cover, 3-sealing rubber ring, 4-intermediate frequency transformer, 5-intermediate frequency input terminal, 6-high voltage measuring terminal, 7-C-W voltage doubling tower, 8-inner shell, 9-high voltage leading-out terminal, 10-upper fixing plate, 11-main capacitor framework plate, 12-auxiliary capacitor framework plate, 13-measuring circuit framework plate, 14-input wiring, 15-auxiliary capacitor, 16-equalizing ring, 17-protective resistor, 18-diode, 19-main capacitor, 20-measuring resistor, 21-connecting plate, 22-magnetic core, 23-supporting framework plate, 24-isolating framework plate, 25-fastener, 26-polyimide insulating layer and 27-highland barley paper insulating layer, 28-primary coil, 29-secondary coil, 30-high-voltage shielding metal ball, 31-aviation plug, 32-measuring binding post, 33-wiring base, 34-high-voltage leading-out terminal interface flange, 35-groove, 36-high-voltage metal joint, 37-movable metal plug, 38-insulating piece, 39-connecting sealing metal flange, 40-O-shaped sealing ring and 41-conductive spring
In this embodiment, the magnetic core 22 is an "E" core made of amorphous material, the primary coil 28 is a primary coil formed by winding a plurality of round copper enameled wires, the secondary coil 29 is a secondary coil formed by winding a plurality of round copper enameled wires, the insulating member 38 is made of epoxy resin, the connection sealing metal flange 39 and the high-voltage metal connector 36 are made of metal copper materials, the inner housing 8 is filled with No. 45 transformer oil, all the upper fixing plate 10, the main capacitor skeleton plate 11, the auxiliary capacitor skeleton plate 12, the measurement circuit skeleton plate 13, the connecting plate 21, the support skeleton plate 23, the isolation skeleton plate 24 and the wiring base 33 are made of epoxy plates, the intermediate-frequency input terminal 5 and the measurement wiring terminal 32 are made of epoxy resin, the inner housing 8 is made of organic glass, and the grounding outer housing 1 is made of stainless steel. And two ends of the upper fixing plate 10 are connected to the inner wall of the grounding shell body 1 through two epoxy plates.
In this embodiment, 5 grading rings 16 are provided, the high-voltage metal connector 36 is connected with the fifth grading ring 16 through a copper wire, the distance between adjacent grading rings 16 is 66mm, the distance between the first grading ring 16 and the upper fixing plate 10 is 70mm, the distance between the fifth grading ring 16 and the lower end of the main capacitor framework plate 11 is 85mm, and the grounded outer shell 1 is 542mm in length, 350mm in width and 445mm in height.
The working principle is as follows: the compact negative high-voltage direct-current power supply adopts a C-W (Cockcroft-Walton) voltage doubling circuit, please refer to a circuit schematic diagram shown in figure 6, the medium-frequency power supply supplies power to a medium-frequency transformer, the medium-frequency transformer boosts the sine wave voltage of 33kHz and 0-400V output by the medium-frequency power supply to 0-22.5kV, and the medium-frequency sine wave voltage of the secondary output amplitude of the medium-frequency transformer is 0-22.5kV and supplies the middle-frequency sine wave voltage to the C-W voltage doubling circuit.
According to a C-W voltage-multiplying circuit formula, the no-load voltage value of the highest output end on one side of the main capacitor can be obtained through an N-stage voltage-multiplying line as follows:
Uoutput＝-2nUinput
wherein n is the voltage-multiplying series, and Uinput is the amplitude of the secondary output voltage of the transformer; uoutput is the no-load voltage value of the highest output end at one side of the main capacitor of the C-W voltage doubling circuit.
In fig. 6, the C-W voltage doubling circuit is composed of auxiliary capacitors C1, C3, C5, and C7), main capacitors C2, C4, C6, and C8, and diodes D1 to D8. When the voltage at the potential point 1 is higher than the ground potential, D1 is conducted in the forward direction to charge C1, and when the voltage value at the potential point 1 is-U, C1 is charged to the end, and D1 is cut off; when the sum of the potential-U at the potential 1 point and the input voltage value of the secondary side of the transformer is smaller than the ground potential, D2 is conducted in the forward direction to charge C2, and D2 is cut off until the voltage value at the potential 2 point is-2U; by analogy, the voltage value at the potential 8 point is-8U; when the secondary output amplitude of the transformer is 22.5kV, the output direct current negative high voltage value of-180 kV can be obtained.
In fig. 6, R1 is a protection resistor, which protects the voltage doubling circuit from being damaged by an instantaneous overlarge circuit when a short-circuit fault occurs in the high-voltage equipment; the muA meter and the value of the measuring resistor R2 obtain the output voltage value of the negative high-voltage direct-current power supply; and the mA meter measures the output current value of the negative high-voltage direct-current power supply.
Referring to fig. 7, by using electromagnetic field simulation calculation, the voltage distribution simulation rainbow diagram of the compact negative high voltage dc power supply of the present embodiment shows that the problem of too strong local electric field in a limited space is avoided inside the device.
The above description is of the preferred embodiment of the present invention and should not be taken as limiting the invention, but is intended to cover all modifications, equivalents, and improvements which may occur to those skilled in the art, and which fall within the spirit and scope of the invention.
Claims (9)
1. A compact negative high voltage direct current power supply characterized in that: the high-voltage transformer grounding device comprises a grounding outer shell and a C-W voltage-multiplying tower, an intermediate frequency transformer, a high-voltage measuring end and a high-voltage leading-out end which are arranged in the grounding outer shell, wherein a top cover is detachably arranged at the top of the grounding outer shell, an intermediate frequency input terminal is arranged on the top cover, the intermediate frequency input terminal, the intermediate frequency transformer, the C-W voltage-multiplying tower and the high-voltage leading-out end are sequentially and electrically connected, and the C-W voltage-multiplying tower is.
2. The compact negative high voltage dc power supply of claim 1, further comprising: and a sealing rubber ring is arranged between the top cover and the grounding shell body.
3. The compact negative high voltage dc power supply of claim 1, further comprising: the medium-frequency transformer comprises magnetic cores, supporting framework plates, isolating framework plates, fasteners, polyimide insulating layers, highland barley paper insulating layers, primary coils and secondary coils, wherein the supporting framework plates are fixed on the inner wall on the right side of a grounding shell body through the fasteners, two opposite E-shaped magnetic cores are arranged between the two supporting framework plates, the two isolating framework plates are arranged between the magnetic cores, the polyimide insulating layers, the primary coils, the highland barley paper insulating layers and the secondary coils are arranged on middle columns of the E-shaped magnetic cores in a winding mode from inside to outside, the input end of the primary coils is connected with a medium-frequency input terminal, the output end of the secondary coils is connected with a C-W voltage doubling tower, and one output end connector of the secondary coils is provided with two high-voltage.
4. The compact negative high voltage dc power supply of claim 3, wherein: the C-W voltage-multiplying tower comprises an upper fixing plate, an inner shell and an input connection wire, wherein a main capacitor framework plate, an auxiliary capacitor framework plate, a measuring circuit framework plate, a grading ring and a connecting plate are arranged in the inner shell, the upper fixing plate is arranged at the top of the inner shell, transformer oil is filled in the inner shell, the main capacitor framework plate, the auxiliary capacitor framework plate and the measuring circuit framework plate are vertically arranged, the upper ends of the main capacitor framework plate, the auxiliary capacitor framework plate and the measuring circuit framework plate are clamped on the upper fixing plate, a plurality of capacitor groups are distributed on the front side and the back side of the main capacitor framework plate and the auxiliary capacitor framework plate respectively, the grading rings are arranged at equal intervals from top to bottom, the inner sides of the grading rings are respectively connected with the main capacitor framework plate, the auxiliary capacitor framework plate and the measuring circuit framework plate respectively, a plurality of measuring resistors are uniformly distributed on the front side and the back, and the lowest connecting plate is provided with a protective resistor, the other connecting plates are provided with diodes, one end of an input wiring is connected with the capacitor group on the uppermost layer of the main capacitor framework plate, and the other end of the input wiring is connected with the output end of the secondary coil of the intermediate-frequency transformer.
5. The compact negative high voltage dc power supply of claim 4, wherein: and the main capacitor framework plate, the auxiliary capacitor framework plate and the measuring circuit framework plate are provided with a plurality of grooves.
6. The compact negative high voltage dc power supply of claim 5, further comprising: the capacitor group comprises an auxiliary capacitor and a main capacitor which are connected in sequence, the number of the auxiliary capacitor and the number of the main capacitor are the same, and the arrangement mode of the capacitor group on the main capacitor framework plate is the same as that of the capacitor group on the auxiliary capacitor framework plate.
7. The compact negative high voltage dc power supply of claim 6, further comprising: the central lines of the main capacitor framework plate, the auxiliary capacitor framework plate and the measuring circuit framework plate in the vertical direction are distributed in a regular triangle.
8. The compact negative high voltage dc power supply of claim 7, further comprising: the high-voltage measuring end is arranged on the right side of the C-W voltage-multiplying tower and comprises an aviation plug, a measuring wiring terminal and a wiring base; aviation plug, measurement terminal all install on the wiring base, and the front end all stretches out the positive side of ground connection shell body outside, and the wiring base is fixed in on the ground connection shell body leading flank inner wall.
9. The compact negative high voltage dc power supply of claim 8, further comprising: the high-pressure leading-out end comprises a high-pressure metal connector, an insulating part and a connecting sealing metal flange, one side of the connecting sealing metal flange is connected with the high-pressure metal connector, the other side of the connecting sealing metal flange is connected with the insulating part with the skirt edge, a conductive spring is arranged inside the high-pressure metal connector, a movable metal plug is fixedly connected with one end of the conductive spring, the other end of the conductive spring is connected with the movable metal plug, one side of the movable metal plug, which is far away from the conductive spring, can slide to penetrate through the connecting sealing metal flange and stretch into the insulating part, the insulating part is connected with a high-pressure leading-out end interface flange arranged on the right side of the grounding shell body through a copper wire, and an O-shaped sealing ring is.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113114025A (en) * | 2021-05-25 | 2021-07-13 | 江苏迪业检测科技有限公司 | Tower voltage-multiplying circuit structure |
| CN113315346A (en) * | 2021-06-29 | 2021-08-27 | 成都锐明合升科技有限责任公司 | Miniature high-voltage power supply with high insulating property |
| CN114051308A (en) * | 2021-10-11 | 2022-02-15 | 核工业西南物理研究院 | High voltage power supply system for neutron generator |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004027792A1 (en) * | 2002-09-17 | 2004-04-01 | Matsushita Electric Industrial Co., Ltd. | Transformer and transformer unit having the same |
| CN102368886A (en) * | 2011-12-05 | 2012-03-07 | 张继科 | High-frequency high-voltage X-ray defect detector |
| US20120212862A1 (en) * | 2009-08-20 | 2012-08-23 | State Grid Corporation Of China | Method and device for limiting secondary arc current of extra-high voltage/ultra-high voltage double circuit lines on the same tower |
| CN102969900A (en) * | 2012-12-19 | 2013-03-13 | 沈阳师范大学 | Portable frequency-conversion high-voltage DC (Direct Current) power supply |
| CN202918183U (en) * | 2012-12-03 | 2013-05-01 | 中国工程物理研究院核物理与化学研究所 | A voltage-multiplying device containing heat dissipating and dustproof functions |
| CN103323752A (en) * | 2013-06-05 | 2013-09-25 | 广东电网公司电力科学研究院 | Dry type air reactor turn-to-turn insulation defect detection system |
| JP2014236628A (en) * | 2013-06-04 | 2014-12-15 | 京都電機器株式会社 | Dc high-voltage power supply device |
| CN204142759U (en) * | 2014-09-03 | 2015-02-04 | 扬州市鑫源电气有限公司 | Multiplication of voltage tower used by a kind of new test power-supply device |
| CN106373753A (en) * | 2016-09-18 | 2017-02-01 | 温州明亮汽车零部件有限公司 | Transformer with filtering function for switching power supply, and switching power supply |
| CN106416039A (en) * | 2013-12-06 | 2017-02-15 | Ut - 巴特勒有限公司 | Power supply and method of manufacturing |
| CN106971828A (en) * | 2017-04-28 | 2017-07-21 | 东莞市奥海电源科技有限公司 | Board-like transformer and adapter and charger with the transformer |
| CN206649963U (en) * | 2017-04-24 | 2017-11-17 | 中国原子能科学研究院 | A kind of transformer with small volume of high step-up ratio |
| CN109842303A (en) * | 2019-01-18 | 2019-06-04 | 兰州大学 | The compact integrated power supply unit of ion accelerator |
| CN210167960U (en) * | 2019-08-14 | 2020-03-20 | 山西中辐核仪器有限责任公司 | High-voltage output power module |
| CN111212511A (en) * | 2020-02-12 | 2020-05-29 | 中广核达胜加速器技术有限公司 | Direct-current high-voltage power supply and low-energy electron accelerator |
| CN111800023A (en) * | 2020-07-10 | 2020-10-20 | 许继电源有限公司 | High-frequency boosting transformer rectifying device |
-
2021
- 2021-02-04 CN CN202110153318.3A patent/CN112821786B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004027792A1 (en) * | 2002-09-17 | 2004-04-01 | Matsushita Electric Industrial Co., Ltd. | Transformer and transformer unit having the same |
| US20120212862A1 (en) * | 2009-08-20 | 2012-08-23 | State Grid Corporation Of China | Method and device for limiting secondary arc current of extra-high voltage/ultra-high voltage double circuit lines on the same tower |
| CN102368886A (en) * | 2011-12-05 | 2012-03-07 | 张继科 | High-frequency high-voltage X-ray defect detector |
| CN202918183U (en) * | 2012-12-03 | 2013-05-01 | 中国工程物理研究院核物理与化学研究所 | A voltage-multiplying device containing heat dissipating and dustproof functions |
| CN102969900A (en) * | 2012-12-19 | 2013-03-13 | 沈阳师范大学 | Portable frequency-conversion high-voltage DC (Direct Current) power supply |
| JP2014236628A (en) * | 2013-06-04 | 2014-12-15 | 京都電機器株式会社 | Dc high-voltage power supply device |
| CN103323752A (en) * | 2013-06-05 | 2013-09-25 | 广东电网公司电力科学研究院 | Dry type air reactor turn-to-turn insulation defect detection system |
| CN106416039A (en) * | 2013-12-06 | 2017-02-15 | Ut - 巴特勒有限公司 | Power supply and method of manufacturing |
| CN204142759U (en) * | 2014-09-03 | 2015-02-04 | 扬州市鑫源电气有限公司 | Multiplication of voltage tower used by a kind of new test power-supply device |
| CN106373753A (en) * | 2016-09-18 | 2017-02-01 | 温州明亮汽车零部件有限公司 | Transformer with filtering function for switching power supply, and switching power supply |
| CN206649963U (en) * | 2017-04-24 | 2017-11-17 | 中国原子能科学研究院 | A kind of transformer with small volume of high step-up ratio |
| CN106971828A (en) * | 2017-04-28 | 2017-07-21 | 东莞市奥海电源科技有限公司 | Board-like transformer and adapter and charger with the transformer |
| CN109842303A (en) * | 2019-01-18 | 2019-06-04 | 兰州大学 | The compact integrated power supply unit of ion accelerator |
| CN210167960U (en) * | 2019-08-14 | 2020-03-20 | 山西中辐核仪器有限责任公司 | High-voltage output power module |
| CN111212511A (en) * | 2020-02-12 | 2020-05-29 | 中广核达胜加速器技术有限公司 | Direct-current high-voltage power supply and low-energy electron accelerator |
| CN111800023A (en) * | 2020-07-10 | 2020-10-20 | 许继电源有限公司 | High-frequency boosting transformer rectifying device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113114025A (en) * | 2021-05-25 | 2021-07-13 | 江苏迪业检测科技有限公司 | Tower voltage-multiplying circuit structure |
| CN113315346A (en) * | 2021-06-29 | 2021-08-27 | 成都锐明合升科技有限责任公司 | Miniature high-voltage power supply with high insulating property |
| CN114051308A (en) * | 2021-10-11 | 2022-02-15 | 核工业西南物理研究院 | High voltage power supply system for neutron generator |
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