CN104185352A - Combined high-frequency high-pressure X-ray machine head - Google Patents
Combined high-frequency high-pressure X-ray machine head Download PDFInfo
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- CN104185352A CN104185352A CN201410408564.9A CN201410408564A CN104185352A CN 104185352 A CN104185352 A CN 104185352A CN 201410408564 A CN201410408564 A CN 201410408564A CN 104185352 A CN104185352 A CN 104185352A
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Abstract
The invention discloses a combined high-frequency high-pressure X-ray machine head which comprises an oil tank cover (1) and an oil tank body (2). An inside insulating frame (12) fixedly connected with the oil tank cover (1) is arranged inside the oil tank body (2). The inside insulating frame (12) is divided into a plurality of spaces through an arranged insulating partition plate and is fixedly provided with a plus-end dual-voltage rectifying unit (7), a minus-end dual-voltage rectifying unit (8), a filament transformer (9), a high-frequency high-pressure transformer (10) and an X-ray tube (11). The oil tank cover (1) is further provided with a wiring board unit (5) and a feed-through capacitor (6). The inside insulating frame (12) and the insulating partition plate are made of 10-mm-thick PP plates. The combined high-frequency high-pressure X-ray machine head is simple in structure, reasonable in design, safe and reliable and capable of effectively solving the problem that the machine head strikes a light easily when the machine head outputs the high-power X-ray source, and high-power X-rays can be output stably.
Description
Technical field
The invention belongs to medical apparatus and instruments, be specifically related to a kind of composite type high-frequency and high-voltage X ray head for the manufacture of X-ray production apparatus.
Background technology
Current combined X-ray head, mainly contains power frequency machine, High-frequency machine, and High-frequency machine is divided into again lower powered and high-power, and this head is widely used on X-ray production apparatus.Combination X ray head is by being assemblied in the frame of X-ray production apparatus and being connected with other circuit, form a complete X-ray production apparatus, this X-ray machine X can found commonness photograph and the high kilovoltage radiography of position, clinostatism, side position for positions such as situation of all-level hospitals knot human body head, chest, belly, four limbs and bones.
And combined X-ray head in X-ray production apparatus is particularly crucial.Composite type power frequency X ray head is because volume is large, Heavy Weight, and the power of output is low, the full-wave rectification of employing, the X ray of output is unstable, affects the effect of image.Composite type high-frequency and high-voltage X ray head volume is little, lightweight, the X ray of output is stable, image effect is good, most composite type high-frequency and high-voltage X-ray production apparatus bulb employing in front is in the market all fixed anode formula, defect due to fixed anode itself, and the requirement of volume, aspect power output, be very limited, the general power that can export is all below 8KW, although part producer also uses band rotarting anode bulb tube combination head instead, but the requirement of the restriction of structure and technique, aspect power output, also can only export 10KW, if export too high, also easily discharge and burn out device in pressure-oil tank inside.
Summary of the invention
The object of the invention is to the some shortcomings for prior art, a kind of simple in structure, reasonable in design, safe and reliable, head composite type high-frequency and high-voltage X ray head of problem of easily striking sparks can effectively solve head output high-power x-ray source time is provided.
To achieve these goals, the present invention has adopted following technical scheme:
A composite type high-frequency and high-voltage X ray head, comprises fuel tank case lid and tank body of oil tank; At the inner built-in electrical insulation frame being fixedly connected with fuel tank case lid of placing of tank body of oil tank; Described built-in electrical insulation frame is divided into several spaces by insulating barrier is set, and has fixedly mounted respectively anode voltage multiplying rectifier filter unit, negative terminal voltage multiplying rectifier filter unit, filament transformer, high frequency high voltage transformer and X-ray tube; Described anode voltage multiplying rectifier filter unit and negative terminal voltage multiplying rectifier filter unit are fixedly mounted on respectively the both sides on built-in electrical insulation frame top; Described filament transformer and high frequency high voltage transformer are fixedly mounted on the centre position on built-in electrical insulation frame top, and adopt insulating barrier to separate between filament transformer and high frequency high voltage transformer; Described X-ray tube is fixedly mounted on the bottom of built-in electrical insulation frame; At fuel tank, cover and be also provided with terminal block unit and feed-through capacitor;
The high-pressure side of described anode voltage multiplying rectifier filter unit is connected to the anode of X-ray tube, and low-pressure end is connected to terminal block unit, and the current sample end of simultaneously drawing is also connected to terminal block unit; The high-pressure side of described negative terminal voltage multiplying rectifier filter unit is connected to the negative terminal of X-ray tube, and low-pressure end is connected to terminal block unit; The elementary terminal block unit that is connected to of described filament transformer, the secondary negative terminal that is connected to X-ray tube; The elementary terminal block unit that is connected to of described high frequency high voltage transformer, secondary anode voltage multiplying rectifier filter unit and the negative terminal voltage multiplying rectifier filter unit of being connected respectively to.
Present invention includes the core components such as high frequency high voltage transformer, filament transformer, anode voltage multiplying rectifier filter unit, negative terminal voltage multiplying rectifier filter unit, X-ray tube (band rotarting anode), these core components are reasonably arranged on built-in electrical insulation frame and adopt insulating barrier that all parts is separated, compact conformation and there will not be spark phenomenon, provides the x-ray source of stable high voltage; And through anode/negative terminal voltage multiplying rectifier filter unit because rectification is by high-voltage capacitance filter action, can stable output and the very little high pressure of ripple, the X ray monochromaticjty that in X-ray tube, bulb produces is good, soft ray is few, imaging definition is high.
As of the present invention, further illustrate, above-described anode voltage multiplying rectifier filter unit and negative terminal voltage multiplying rectifier filter unit all adopt same circuit design, mainly by diode HD
1～HD
12, resistance R
1～R
2, R
3, R
4, piezo-resistance RV
1, adjustable resistance RP
1and capacitor C
1～C
2, C
3～C
5, C
6～C
8, C
9form; Wherein, described resistance R
1and R
2series connection, capacitor C
3～C
5series connection after and resistance R
1in parallel, capacitor C
6～C
8series connection after and resistance R
2in parallel; Resistance R
3with adjustable resistance RP
1series connection, then with capacitor C
9, piezo-resistance RV
1in parallel.Resistance R
1～R
2adopt high-tension resistive.In the prior art, the resistance R of the circuit of original voltage multiplying rectifier filter unit
1～R
40by 40 discretes, resistance series connection, then respectively on each resistance and on 1 electric capacity; In the present invention now, change into two high-tension resistive resistance series connection and then C
3～C
5, C
6～C
8electric capacity just can, such improvement can make the whole voltage multiplying rectifier filter unit of anode (negative terminal) device used reduce a lot, the design volume of whole circuit board just diminishes, and in the layout of pressure-oil tank, just can reserve more space, the sparking between minimizing device; Improve the stability of whole fuel tank.
As of the present invention, further illustrate, above-described X-ray tube adopts is with rotating anode X-ray tube.Rotating anode startup drives the rotation of whole bulb rake face, and X ray can all not got on the same point of bulb rake face, has improved whole head power stage, can reach 16KW, bulb is not easy to burn out, and has extended service life of equipment, has very high fail safe, stability.
As of the present invention, further illustrate, it is the PP plate of 10mm that above-described built-in electrical insulation frame and insulating barrier all adopt thickness.PP plate (being polypropylene board) is a kind of hemicrystalline material.It will be harder than PE and has a higher fusing point; The chemical stability that have that light weight, even thickness, smooth surface are smooth, good heat resistance, mechanical strength is high, good and electrical insulating property, the feature such as nontoxic.PP plate is widely used in the fields such as pressure vessels for the chemical industry, machinery, electronics, electrical equipment, packaging for foodstuff, medicine, decoration and water treatment.PP plate applied temps can reach 100 degree.
As of the present invention, further illustrate, the lateral surface of above-described tank body of oil tank is provided with expansion valve and expansion valve gap.
As of the present invention, further illustrate, above-described terminal block unit is provided with connecting interface, by the control board of the external main control system of data wire, and carries out data message transmitted in both directions.
As of the present invention, further illustrate, above-described fuel tank case lid and tank body of oil tank are tightly connected, and pour into transformer oil in tank body of oil tank.
The course of work of the present invention (operation principle):
When 300V high-frequency and high-voltage input panel unit, high-frequency ac voltage boosts through high frequency high voltage transformer, the high-voltage dc voltage of anode voltage multiplying rectifier filter unit and negative terminal voltage multiplying rectifier filter unit output 40KV-125KV; Direct voltage is sent respectively anode and the negative terminal of X-ray tube to, rotating anode electric motor starting of while, and the filament that filament transformer is X-ray tube provides heater current, produces X ray.
In the high direct voltage producing, anode voltage multiplying rectifier filter unit and negative terminal voltage multiplying rectifier filter unit by sample voltage deliver to terminal block unit, by terminal block unit, fed back on main control system control board, control unit produces the pulse-width signal of controlling in real time the high pressure of output is regulated, thereby obtains stable high direct voltage.
In the present invention, high-frequency and high-voltage alternating current is transformed into high voltage direct current through high frequency high voltage transformer, anode/negative terminal voltage multiplying rectifier filter unit, whole process is carried out under complete hermetic insulation environment, in fuel tank, between important devices, all adopt the PP plate of 10mmm to separate, in tank body of oil tank, pour into again transformer oil, just no longer there is spark phenomenon, rapid heat dissipation; Through voltage multiplying rectifier filter unit (because rectification is by high-voltage capacitance filter action), can stable output and the very little high pressure of ripple, the X ray monochromaticjty that bulb produces is good, and soft ray is few, and imaging definition is high.Rotating anode startup drives the rotation of whole bulb rake face, and X ray can all not got on the same point of bulb rake face, has improved whole head power stage, can reach 16KW, bulb is not easy to burn out, and has extended service life of equipment, has very high fail safe, stability.
Compared with prior art, advantage of the present invention:
1. compact conformation, reasonable in design, safe and reliable, the head problem of easily striking sparks while efficiently solving head output high-power x-ray source.Each core component is fixedly mounted on built-in electrical insulation frame, by adopting insulating barrier that they are separated, in tank body of oil tank, pours into transformer oil, make it no longer occur spark phenomenon simultaneously, and rapid heat dissipation, be beneficial to the long-time continual and steady work of X ray head.
2. can stablize output high-power X ray, image effect is good.The present invention has carried out circuit improvement to voltage multiplying rectifier filter unit, and high-frequency and high-voltage alternating current becomes stable and the very little high pressure of ripple after their rectifications, filtering, and the X ray monochromaticjty that bulb produces is like this good, and soft ray is few, and imaging definition is high.Simultaneously, anode voltage multiplying rectifier filter unit and negative terminal voltage multiplying rectifier filter unit by sample voltage deliver to terminal block unit, by terminal block unit, fed back on main control system control board, control unit produces the pulse-width signal of controlling in real time the high pressure of output is regulated, thereby obtains stable high direct voltage.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of one embodiment of the invention.
Fig. 2 is the internal structure schematic diagram of one embodiment of the invention.
Fig. 3 is the structural representation of another side in Fig. 2 view.
Fig. 4 is the circuit theory diagrams of anode voltage multiplying rectifier filter unit/negative terminal voltage multiplying rectifier filter unit in one embodiment of the invention.
Reference numeral: 1-fuel tank case lid, 2-tank body of oil tank, 3-expansion valve gap, 4-expansion valve, 5-terminal block unit, 6-feed-through capacitor, 7-anode voltage multiplying rectifier filter unit, 8-negative terminal voltage multiplying rectifier filter unit, 9-filament transformer, 10-high frequency high voltage transformer, 11-X ray tube, 12-built-in electrical insulation frame.In Fig. 4, HD
n-diode, R
n-resistance, RP
n-adjustable resistance, RV
n-piezo-resistance, C
n-electric capacity, HKV--high-voltage output end, FKV--high pressure adopts output, AC1--transformer input, AC2---transformer input, the output of mA--sample rate current.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Embodiment 1:
As Figure 1-3, a kind of composite type high-frequency and high-voltage X ray head, comprises fuel tank case lid 1 and tank body of oil tank 2; At the inner built-in electrical insulation frame 12 being fixedly connected with fuel tank case lid 1 of placing of tank body of oil tank 2; Described built-in electrical insulation frame 12 is divided into several spaces by insulating barrier is set, and has fixedly mounted respectively anode voltage multiplying rectifier filter unit 7, negative terminal voltage multiplying rectifier filter unit 8, filament transformer 9, high frequency high voltage transformer 10 and X-ray tube 11; Described anode voltage multiplying rectifier filter unit 7 and negative terminal voltage multiplying rectifier filter unit 8 are fixedly mounted on respectively the both sides on built-in electrical insulation frame 12 tops; Described filament transformer 9 and high frequency high voltage transformer 10 are fixedly mounted on the centre position on built-in electrical insulation frame 12 tops, and adopt insulating barrier to separate between filament transformer 9 and high frequency high voltage transformer 10; Described X-ray tube is fixedly mounted on the bottom of built-in electrical insulation frame 12; On fuel tank case lid 1, be also provided with terminal block unit 5 and feed-through capacitor 6;
The high-pressure side of described anode voltage multiplying rectifier filter unit 7 is connected to the anode of X-ray tube 11, and low-pressure end is connected to terminal block unit 5, and the current sample end of simultaneously drawing is also connected to terminal block unit 5; The high-pressure side of described negative terminal voltage multiplying rectifier filter unit 8 is connected to the negative terminal of X-ray tube 11, and low-pressure end is connected to terminal block unit 5; The elementary terminal block unit 5 that is connected to of described filament transformer 9, the secondary negative terminal that is connected to X-ray tube 11; The elementary terminal block unit 5 that is connected to of described high frequency high voltage transformer 10, secondary anode voltage multiplying rectifier filter unit 7 and the negative terminal voltage multiplying rectifier filter unit 8 of being connected respectively to
As shown in Figure 4, above-described anode voltage multiplying rectifier filter unit 7 and negative terminal voltage multiplying rectifier filter unit 8 all adopt same circuit design, mainly by diode HD
1～HD
12, resistance R
1～R
2, R
3, R
4, piezo-resistance RV
1, adjustable resistance RP
1and capacitor C
1～C
2, C
3～C
5, C
6～C
8, C=forms; Wherein, described resistance R
1and R
2series connection, capacitor C
3～C
5series connection after and resistance R
1in parallel, capacitor C
6～C
8series connection after and resistance R
2in parallel; Resistance R
3with adjustable resistance RP
1series connection, then with capacitor C
9, piezo-resistance RV
1in parallel.
Above-described X-ray tube adopts is with rotating anode X-ray tube.It is the PP plate of 10mm that above-described built-in electrical insulation frame 12 and insulating barrier all adopt thickness.The lateral surface of described tank body of oil tank 2 is provided with expansion valve 4 and expansion valve gap 3.Described terminal block unit 5 is provided with connecting interface, by the control board of the external main control system of data wire, and carries out data message transmitted in both directions.Described fuel tank case lid 1 is tightly connected with tank body of oil tank 2, and pours into transformer oil in tank body of oil tank 2.
The course of work of the present embodiment composite type high-frequency and high-voltage X ray head:
When 300V high-frequency and high-voltage input panel unit 5, high-frequency ac voltage boosts, exports after anode voltage multiplying rectifier filter unit 7 and negative terminal voltage multiplying rectifier filter unit 8 high-voltage dc voltage of 40KV--125KV through high frequency high voltage transformer 10.Direct voltage is sent respectively anode and the negative terminal of X-ray tube 11 to, while anode electric motor starting, and filament transformer 9, for the filament of X-ray tube 11 provides heater current, produces X ray.
When producing stable high voltage, anode voltage multiplying rectifier filter unit 7 and negative terminal voltage multiplying rectifier filter unit 8 by sample voltage deliver to terminal block unit, by wiring units, fed back on main control system control board, control unit produces the pulse-width signal of controlling in real time the high pressure of output is regulated, thereby obtains stable high direct voltage.
Through on probation and test, the X ray quality that this real composite type high-frequency and high-voltage X-ray production apparatus hair is penetrated, X ray monochromaticjty is good, soft ray is few, resonance frequency is high, ripple is little, picture quality is good, and the heater current frequency of pressure-oil tank output is 20 KHZ, and then has improved the definition of exposure and fluoroscopy images; Composite type high-frequency and high-voltage X-ray production apparatus volume is little, lightweight, and assembling is simple, equipment when operation without spark phenomenon, rapid heat dissipation.
Claims (7)
1. a composite type high-frequency and high-voltage X ray head, comprises fuel tank case lid (1) and tank body of oil tank (2); It is characterized in that: at the inner built-in electrical insulation frame (12) being fixedly connected with fuel tank case lid (1) of placing of tank body of oil tank (2); Described built-in electrical insulation frame (12) is divided into several spaces by insulating barrier is set, and has fixedly mounted respectively anode voltage multiplying rectifier filter unit (7), negative terminal voltage multiplying rectifier filter unit (8), filament transformer (9), high frequency high voltage transformer (10) and X-ray tube (11); Described anode voltage multiplying rectifier filter unit (7) and negative terminal voltage multiplying rectifier filter unit (8) are fixedly mounted on respectively the both sides on built-in electrical insulation frame (12) top; Described filament transformer (9) and high frequency high voltage transformer (10) are fixedly mounted on the centre position on built-in electrical insulation frame (12) top, and adopt insulating barrier to separate between filament transformer (9) and high frequency high voltage transformer (10); Described X-ray tube is fixedly mounted on the bottom of built-in electrical insulation frame (12); On fuel tank case lid (1), be also provided with terminal block unit (5) and feed-through capacitor (6);
The high-pressure side of described anode voltage multiplying rectifier filter unit (7) is connected to the anode of X-ray tube (11), and low-pressure end is connected to terminal block unit (5), and the current sample end of simultaneously drawing is also connected to terminal block unit (5); The high-pressure side of described negative terminal voltage multiplying rectifier filter unit (8) is connected to the negative terminal of X-ray tube (11), and low-pressure end is connected to terminal block unit (5); The elementary terminal block unit (5) that is connected to of described filament transformer (9), the secondary negative terminal that is connected to X-ray tube (11); The elementary terminal block unit (5) that is connected to of described high frequency high voltage transformer (10), secondary anode voltage multiplying rectifier filter unit (7) and the negative terminal voltage multiplying rectifier filter unit (8) of being connected respectively to.
2. composite type high-frequency and high-voltage X ray head according to claim 1, is characterized in that: described anode voltage multiplying rectifier filter unit (7) and negative terminal voltage multiplying rectifier filter unit (8) all adopt same circuit design, mainly by diode HD
1～HD
12, resistance R
1～R
2, R
3, R
4, piezo-resistance RV
1, adjustable resistance RP
1and capacitor C
1～C
2, C
3～C
5, C
6～C
8, C
9form; Wherein, described resistance R
1and R
2series connection, capacitor C
3～C
5series connection after and resistance R
1in parallel, capacitor C
6～C
8series connection after and resistance R
2in parallel; Resistance R
3with adjustable resistance RP
1series connection, then with capacitor C
9, piezo-resistance RV
1in parallel.
3. composite type high-frequency and high-voltage X ray head according to claim 1 and 2, is characterized in that: described X-ray tube adopts is with rotating anode X-ray tube.
4. composite type high-frequency and high-voltage X ray head according to claim 1 and 2, is characterized in that: it is the PP plate of 10mm that described built-in electrical insulation frame (12) and insulating barrier all adopt thickness.
5. composite type high-frequency and high-voltage X ray head according to claim 1, is characterized in that: the lateral surface of described tank body of oil tank (2) is provided with expansion valve (4) and expansion valve gap (3).
6. composite type high-frequency and high-voltage X ray head according to claim 1, is characterized in that: described terminal block unit (5) is provided with connecting interface, by the control board of the external main control system of data wire, and carries out data message transmitted in both directions.
7. composite type high-frequency and high-voltage X ray head according to claim 1, is characterized in that: described fuel tank case lid (1) is tightly connected with tank body of oil tank (2), and pours into transformer oil in tank body of oil tank (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410408564.9A CN104185352B (en) | 2014-08-19 | 2014-08-19 | Combined high-frequency high-pressure X-ray machine head |
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|---|---|---|---|
| CN201410408564.9A CN104185352B (en) | 2014-08-19 | 2014-08-19 | Combined high-frequency high-pressure X-ray machine head |
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| CN104185352B CN104185352B (en) | 2017-02-15 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105357853A (en) * | 2015-12-03 | 2016-02-24 | 南宁一举医疗电子有限公司 | Novel 5KW high-voltage control device |
| CN106793434A (en) * | 2016-12-27 | 2017-05-31 | 南宁举医疗电子设备股份有限公司 | The high-frequency and high-voltage generator of 16kW pet X-ray production apparatus |
| CN111329502A (en) * | 2020-03-27 | 2020-06-26 | 珠海市睿影科技有限公司 | Combined machine head of X-ray machine |
| CN113340923A (en) * | 2021-06-10 | 2021-09-03 | 丹东华日理学电气有限公司 | High-frequency portable X-ray machine device |
| 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 |
| CN114765916A (en) * | 2021-01-15 | 2022-07-19 | 北京艾立科技有限公司 | Grid-control x-ray combined machine head internal structure layout |
| CN115023016A (en) * | 2022-05-27 | 2022-09-06 | 海玮电子科技(上海)有限公司 | A insulating assembly and high-pressure oil tank for high-pressure oil tank |
| US12048573B2 (en) | 2021-11-05 | 2024-07-30 | GE Precision Healthcare LLC | Systems for x-ray imaging |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105357853A (en) * | 2015-12-03 | 2016-02-24 | 南宁一举医疗电子有限公司 | Novel 5KW high-voltage control device |
| CN106793434A (en) * | 2016-12-27 | 2017-05-31 | 南宁举医疗电子设备股份有限公司 | The high-frequency and high-voltage generator of 16kW pet X-ray production apparatus |
| CN111329502A (en) * | 2020-03-27 | 2020-06-26 | 珠海市睿影科技有限公司 | Combined machine head of X-ray machine |
| CN114765916A (en) * | 2021-01-15 | 2022-07-19 | 北京艾立科技有限公司 | Grid-control x-ray combined machine head internal structure layout |
| CN113340923A (en) * | 2021-06-10 | 2021-09-03 | 丹东华日理学电气有限公司 | High-frequency portable X-ray machine device |
| CN113340923B (en) * | 2021-06-10 | 2024-06-11 | 丹东华日理学电气有限公司 | High-frequency portable X-ray machine device |
| US12048573B2 (en) | 2021-11-05 | 2024-07-30 | GE Precision Healthcare LLC | Systems for x-ray imaging |
| 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 |
| CN115023016A (en) * | 2022-05-27 | 2022-09-06 | 海玮电子科技(上海)有限公司 | A insulating assembly and high-pressure oil tank for high-pressure oil tank |
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|---|---|
| CN104185352B (en) | 2017-02-15 |
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