CN101754559B - Dual-bulb tube high-voltage oil tank - Google Patents
Dual-bulb tube high-voltage oil tank Download PDFInfo
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- CN101754559B CN101754559B CN200810229657XA CN200810229657A CN101754559B CN 101754559 B CN101754559 B CN 101754559B CN 200810229657X A CN200810229657X A CN 200810229657XA CN 200810229657 A CN200810229657 A CN 200810229657A CN 101754559 B CN101754559 B CN 101754559B
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- 238000004804 winding Methods 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 239000008358 core component Substances 0.000 claims description 5
- 235000014676 Phragmites communis Nutrition 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007600 charging Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The invention relates to a dual-bulb tube high-voltage oil tank arranged in an X-ray high-voltage generator. The high-voltage oil tank is provided with a voltage-multiplying rectification circuit, a boosting transformer, a filament transformer and a high-voltage switching device, wherein a primary winding of the boosting transformer is connected with an inversion part of the high-voltage generator; the voltage output by the inversion part is boosted and output to the voltage-multiplying rectification circuit through the primary winding; the high-voltage direct-current voltage output by the voltage-multiplying rectification circuit is transmitted to a first high-voltage bulb tube and a second high-voltage bulb tube through the high-voltage switching device. The invention ensures participation in high-voltage generator resonance, adopts voltage-multiplying rectification circuit, has a high resonance frequency of 80-250kHz and little output high voltage ripple, improves the quality of X ray emitted by the bulb tube, ensures that the filament current frequency output by the dual-bulb tube high-voltage oil tank is 40kHz so as to improve the definition of perspective and exposure images, is small in size to realize effective isolation between strong current and weak current.
Description
Technical field
The present invention relates to the medical diagnosis X radial high pressure generator, specifically a kind of dual-bulb tube high-voltage oil tank.
Background technology
The high-frequency and high-voltage generator technical development of external X line machine early; Released intermediate frequency X-ray production apparatus product the eighties; Release high frequency X-ray production apparatus product the nineties again, the operating frequency of its high pressure generator is brought up to hundreds of hertz, thousands of hertz, tens of KHz by 50Hz.The raising of operating frequency brought on the structure with performance on qualitative leap.Owing to adopted up-to-date semiconductor device, high-frequency convertor technology, Closed loop Control and computer management; Solved the problem of traditional power frequency, the existence of intermediate frequency X-ray production apparatus, its protection level and image quality and doctor's diagnostic level also all is greatly improved.All the time; Medical diagnostic X-ray apparatus both domestic and external is by a high voltage generators and control desk thereof, is the X ray bulb of a photography bed or is the X ray bulb configuration high voltage source of an electronic fluoroscopic table that this generator is single sheet pipe medical diagnosis X radial high pressure generator.
In order to practice thrift equipment investment, make things convenient for the medical worker to use the radiodiagnosis disease, two bulb high pressure generators have appearred; Can be two bulbs high voltage source is provided, but pulse modulation technology is partly adopted in its inversion, output voltage frequency is lower; Tens kHz only, the high voltage ripple that after rectification, obtains is bigger, makes the X ray quality of X ray bulb emission lower; The definition of perspective exposure is also lower, and the pressure-oil tank volume is bigger than normal.The high pressure commutation circuit is used high pressure transfer valve, complex structure.
Summary of the invention
To the above-mentioned weak point that exists in the prior art, the technical problem that the present invention will solve provides a kind of dual-bulb tube high-voltage oil tank that high pressure generator resonance, resonance frequency reach hundreds of kHz of participating in.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is:
Dual-bulb tube high-voltage oil tank of the present invention; Be installed in the X ray high pressure generator; In pressure-oil tank, be provided with voltage doubling rectifing circuit, step-up transformer, filament transformer and high pressure switching device shifter; Wherein the elementary winding of step-up transformer partly links to each other with the inversion of high pressure generator; The voltage that inversion is partly the exported back of boosting exports voltage doubling rectifing circuit to through secondary winding, and the high-voltage dc voltage of voltage doubling rectifing circuit output is delivered to the 1st high pressure bulb and the 2nd high pressure bulb respectively through the high pressure switching device shifter.
Said voltage doubling rectifing circuit adopts the high-voltage diode that can respond the alternating voltage frequency requirement fast as rectifying device; Said high pressure switching device shifter is core component with the electromagnet; The spool of electromagnet is rotatedly connected through connecting rod and rotor plate; The reed that rotor plate extends through its upper end is connected to moving contact; This moving contact correspondence the 1st, 2 is respectively decided contact, and the 1st, 2 decide contact is connected with the cathode end and the anode output end of pressure-oil tank respectively; Also be provided with on the rotor plate make rotor plate under default situations can with the 1st, 2 decide the reliable contact of one of contact extension spring; The fork of the end of connecting rod difference butt the 1st, 2 sensitive switches under the effect of electromagnet; Also be provided with insulation framework in the fuel tank, voltage doubling rectifing circuit, step-up transformer, filament transformer and high pressure switching device shifter all are fixedly installed on the insulation framework.
The present invention has following beneficial effect and advantage:
1. resonance frequency is high, ripple is little, good image quality.The present invention participates in high pressure generator resonance; And the employing voltage doubling rectifing circuit, resonance frequency is high, can reach 80～250kHz; The output HIGH voltage ripple is little; Improved the X ray quality of bulb emission, the heater current frequency of dual-bulb tube high-voltage oil tank output simultaneously is 40kHz, and then has improved the definition of perspective and exposure image.
2. volume is little.Because resonance frequency of the present invention is high, the high-tension transformer volume in the pressure-oil tank is reduced, thereby reduced the volume of pressure-oil tank, the volume of X ray high pressure generator is also reduced.
3. the present invention adopts the core component of DC electromagnet as switching device shifter, has guaranteed moving contact reliable contact good with deciding contact, and has realized effective isolation of forceful electric power and light current.
4. simple in structure, switch reliable.The present invention utilizes the core component of electromagnet as switching device shifter; Simplified the structure of switching device shifter, after realizing change action, can send the corresponding feedback signal to the control section of high pressure generator; Guaranteed the reliability of switching, can be respectively two bulbs high direct voltage is provided.
Description of drawings
Fig. 1 is a structured flowchart of the present invention;
Fig. 2 is the voltage doubling rectifing circuit schematic diagram among the present invention;
Fig. 3 A is the high pressure switching device shifter default conditions sketch map among the present invention.
Fig. 3 B is the high pressure switching device shifter switching state sketch map among the present invention.
Embodiment
Like Fig. 1, shown in 2; Dual-bulb tube high-voltage oil tank of the present invention is installed in the X ray high pressure generator; In pressure-oil tank, be provided with voltage doubling rectifing circuit (being anode voltage doubling rectifing circuit and the negative electrode voltage doubling rectifing circuit among Fig. 1), step-up transformer, filament transformer and high pressure switching device shifter, all be immersed in the insulating oil.Also be provided with insulation framework in the fuel tank, voltage doubling rectifing circuit, step-up transformer, filament transformer and high pressure switching device shifter all are fixedly installed on the insulation framework, can guarantee between the each several part and reliably insulation between each several part and the casing.Wherein the elementary winding of step-up transformer partly links to each other with the inversion of high pressure generator; The voltage that inversion is partly the exported back of boosting exports voltage doubling rectifing circuit to through secondary winding, and the high-voltage dc voltage of voltage doubling rectifing circuit output is delivered to the 1st high pressure bulb and the 2nd high pressure bulb respectively through the high pressure switching device shifter; Said voltage doubling rectifing circuit adopts the high-voltage diode that can respond the alternating voltage frequency requirement fast as rectifying device.
Voltage doubling rectifing circuit is that the multiple of input voltage is distinguished by output voltage generally.Shown in Figure 2 is two voltage doubling rectifying circuit.Circuit is made up of transformer T1, two rectifier diode D1, D2 and two capacitor C1, C2.Its operation principle is following:
When the electromotive force e2 of the secondary winding of transformer T1 is positive half cycle (on just down negative), diode D1 conducting, D2 ends.Electric current charges to C1 through D1, the voltage on the capacitor C 1 is filled the peak value that causes near e2, and remain unchanged basically.When the electromotive force e2 of the secondary winding of transformer T1 is negative half period (go up and just bearing down), diode D2 conducting, D1 ends.Electric current, fills the peak value that causes near the electromotive force e2 of the secondary winding of transformer T1 with the voltage on the capacitor C 2, and remains unchanged basically capacitor C 2 chargings through diode D2.To be Uc1 with voltage U c2 on the capacitor C 2 connect voltage folds sum between this moment capacitor C 1 and diode D1.Charging so repeatedly, output voltage is near two times of transformer secondary output winding electric kinetic potential e2.
Pressure-oil tank of the present invention is participated in high pressure generator inversion resonance partly through step-up transformer, and resonance frequency is high, can reach 80～250kHz; Because resonance frequency is high; The inverter output voltage frequency of its generation is high, and adopts voltage multiplying rectifier, thereby the high voltage ripple that obtains after the rectification is little; Step-up transformer volume in the pressure-oil tank is reduced, thereby reduced the volume of pressure-oil tank.
The present invention is when work; Boost through high-frequency ac (resonance output) voltage of step-up transformer to the output of the inverter circuit in the high pressure generator; Carry out voltage multiplying rectifier filtering through voltage doubling rectifing circuit then; Export high direct voltage, the voltage and the current feedback signal of cathode and anode is provided for the control circuit of high pressure generator; High pressure generator improves heater current and isolates elementary low-voltage signal through filament transformer; Two step-up transformers are delivered in the high-frequency ac voltage output of inverter circuit; High frequency voltage after each step-up transformer will boost is delivered to the voltage multiplying rectifier filter circuit; Produce positive and negative direct voltage respectively over the ground, the two stack back produces required HVDC and exports selected bulb to through the high pressure switching device shifter;
Shown in Fig. 3 A, 3B; The high pressure switching device shifter is a core component with electromagnet 1; The spool 11 of electromagnet 1 is rotatedly connected through rotating shaft through connecting rod 2 and rotor plate 3; The reed 5 that rotor plate 3 extends through its upper end is connected to 31,32, two groups of moving contacts of two groups of moving contacts 31,32 corresponding the 1st, 2 to be decided contact 41,42, the 1,2 and decides contact 41,42 and be connected with the cathode end and the anode output end of pressure-oil tank respectively respectively; Every group of moving contact has 4 contacts; Be respectively voltage doubling rectifing circuit output anode and negative electrode, broad filament current output terminal, lampet silk output current end, also be provided with on the rotor plate 3 make rotor plate 3 under default situations can with the 1st, 2 decide the reliable contact of one of contact 41,42 extension spring 6; The fork of the end of connecting rod 2 difference butt the 1st, 2 sensitive switches 71,72 under the effect of electromagnet 1.
Shown in Fig. 3 A; Default conditions are: electromagnet 1 is not charged; Thereby do not produce magnetic force, and its spool 11 stretches out under the effect of extension spring 6 pulling force, and the 1st moving contact 31 of rotor plate 3 upper ends and the corresponding the 1st is decided contact 41 and is engaged; Be connected with the 1st group of cathode end and the anode output end of pressure-oil tank, export the 1st bulb to; Simultaneously the end of connecting rod 2 under the effect of electromagnet 1 with the fork butt of the 1st sensitive switch 71, send the 1st bulb to the control section of high pressure generator and cut signal.
Shown in Fig. 3 B; Switching state is: the control desk by high pressure generator sends switching signal, and the electromagnet 1 in the pressure-oil tank is powered on, and spool 11 is inhaled into; Drive the pulling force action that rotor plate 3 overcomes extension spring 6 through connecting rod 2; The 2nd moving contact 32 of rotor plate 3 upper ends and the corresponding the 2nd is decided contact 42 and is engaged, and is connected with the 2nd group of cathode end and the anode output end of pressure-oil tank, exports the 2nd bulb to; Simultaneously the end of connecting rod 2 under the effect of electromagnet 1 with the fork butt of the 2nd sensitive switch 72, send the 2nd bulb to the control section of high pressure generator and cut signal.
The reliable switching of exporting supply power voltage through above-mentioned switching device shifter assurance pressure-oil tank among the present invention.
Claims (3)
1. dual-bulb tube high-voltage oil tank; Be installed in the X ray high pressure generator; It is characterized in that: in pressure-oil tank, be provided with voltage doubling rectifing circuit, step-up transformer, filament transformer and high pressure switching device shifter; Wherein the elementary winding of step-up transformer partly links to each other with the inversion of high pressure generator; The voltage that inversion is partly the exported back of boosting exports voltage doubling rectifing circuit to through secondary winding, and the high-voltage dc voltage of voltage doubling rectifing circuit output is delivered to the 1st high pressure bulb and the 2nd high pressure bulb respectively through the high pressure switching device shifter;
Said high pressure switching device shifter is a core component with electromagnet (1); The spool (11) of electromagnet (1) is rotatedly connected through connecting rod (2) and rotor plate (3); The reed (5) that rotor plate (3) extends through its upper end is connected to the 1st, 2 moving contacts (31,32); This moving contact (31,32) correspondence the 1st, 2 is respectively decided contact (41,42), and the 1st, 2 decide contact (41,42) is connected with the cathode end and the anode output end of pressure-oil tank respectively; On rotor plate (3), also be provided with and make rotor plate (3) under default situations, can decide the reliable extension spring (6) that contacts of one of contact (41,42) the 1st, 2; The fork of the end of connecting rod (2) difference butt the 1st, 2 sensitive switches (71,72) under the effect of electromagnet.
2. by the described dual-bulb tube high-voltage oil tank of claim 1, it is characterized in that: said voltage doubling rectifing circuit adopts the high-voltage diode (D1, D2) that can respond the alternating voltage frequency requirement fast as rectifying device.
3. by the described dual-bulb tube high-voltage oil tank of claim 1, it is characterized in that: also be provided with insulation framework in the fuel tank, voltage doubling rectifing circuit, step-up transformer, filament transformer and high pressure switching device shifter all are fixedly installed on the insulation framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810229657XA CN101754559B (en) | 2008-12-12 | 2008-12-12 | Dual-bulb tube high-voltage oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810229657XA CN101754559B (en) | 2008-12-12 | 2008-12-12 | Dual-bulb tube high-voltage oil tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101754559A CN101754559A (en) | 2010-06-23 |
| CN101754559B true CN101754559B (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810229657XA Expired - Fee Related CN101754559B (en) | 2008-12-12 | 2008-12-12 | Dual-bulb tube high-voltage oil tank |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098861B (en) * | 2011-01-07 | 2012-12-19 | 南宁一举医疗电子有限公司 | Double-bed double-tube high-frequency high-voltage oil tank |
| CN103427678B (en) * | 2012-09-26 | 2015-07-29 | 上海埃斯凯变压器有限公司 | A kind of test control system of X-ray machine pressure-oil tank |
| CN104023460A (en) * | 2014-03-26 | 2014-09-03 | 邦盛医疗装备（天津）股份有限公司 | High-voltage changeover switch for medical X-ray machine |
| CN104183364B (en) | 2014-06-23 | 2016-10-05 | 上海联影医疗科技有限公司 | High tension generator transformation fuel tank |
| CN104185352B (en) * | 2014-08-19 | 2017-02-15 | 南宁一举医疗电子设备股份有限公司 | Combined high-frequency high-pressure X-ray machine head |
| CN110602861B (en) * | 2019-09-02 | 2024-08-13 | 珠海市睿影科技有限公司 | Pet X-ray machine |
| CN111511086A (en) * | 2020-05-21 | 2020-08-07 | 汕头市超声仪器研究所有限公司 | X-ray generating device of lightweight low voltage power supply |
| CN114256041A (en) * | 2021-12-17 | 2022-03-29 | 苏州博思得电气有限公司 | X-ray tube protection structure and high-voltage oil tank with same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2919781Y (en) * | 2006-01-19 | 2007-07-04 | 天津市精工医疗设备技术有限公司 | High-frequency direct-current X-ray high-voltage generator |
| CN1996525A (en) * | 2006-12-05 | 2007-07-11 | 上海电器科学研究所（集团）有限公司 | Switch device for switching multi-pole circuit |
| CN101188900A (en) * | 2007-10-17 | 2008-05-28 | 廖云峰 | Medical diagnosis X radial high-frequency and high-voltage generator based on dual-bed and dual-tube |
-
2008
- 2008-12-12 CN CN200810229657XA patent/CN101754559B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2919781Y (en) * | 2006-01-19 | 2007-07-04 | 天津市精工医疗设备技术有限公司 | High-frequency direct-current X-ray high-voltage generator |
| CN1996525A (en) * | 2006-12-05 | 2007-07-11 | 上海电器科学研究所（集团）有限公司 | Switch device for switching multi-pole circuit |
| CN101188900A (en) * | 2007-10-17 | 2008-05-28 | 廖云峰 | Medical diagnosis X radial high-frequency and high-voltage generator based on dual-bed and dual-tube |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平5-74304A 1993.03.26 |
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| CN101754559A (en) | 2010-06-23 |
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