CN111726924A - Control system and control method of medical X-ray high-voltage generator - Google Patents
Control system and control method of medical X-ray high-voltage generator Download PDFInfo
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- CN111726924A CN111726924A CN202010728958.8A CN202010728958A CN111726924A CN 111726924 A CN111726924 A CN 111726924A CN 202010728958 A CN202010728958 A CN 202010728958A CN 111726924 A CN111726924 A CN 111726924A
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- 238000000034 method Methods 0.000 title claims description 12
- 230000033228 biological regulation Effects 0.000 claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims abstract description 24
- 241000883990 Flabellum Species 0.000 claims abstract description 4
- 230000017525 heat dissipation Effects 0.000 claims description 35
- 238000004891 communication Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/02—Constructional details
- H05G1/025—Means for cooling the X-ray tube or the generator
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/26—Measuring, controlling or protecting
- H05G1/30—Controlling
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- X-Ray Techniques (AREA)
Abstract
The invention discloses a control system of a medical X-ray high-voltage generator, which comprises a high-voltage generator body, wherein a high-voltage oil tank arranged on a main line is arranged in the high-voltage generator body, and a regulating circuit is arranged on the main line in parallel connection with the high-voltage oil tank. The current regulation of the high-voltage generator is realized through the adjustable resistor in the parallel regulation and control circuit, so that the regulation range is small, the problem of high overall regulation sensitivity of the current in the circuit is avoided, and the precise regulation is facilitated; rotate the conducting ring through parallelly connected in the regulation and control circuit and receive ampere's effect and drive the center pin rotation, the air current that produces through flabellum on the center pin dispels the heat fast to high-pressure fuel tank, when reaching in the regulation and control circuit and predetermineeing protective current, the last connection guide block of sliding block with electric connection piece and last conducting ring separation, then the regulation and control circuit opens circuit, normal circuit current when resumeing high-pressure fuel tank to establish ties like this, the function that the regulation and control circuit played circuit protection to high-pressure generator promptly.
Description
Technical Field
The invention relates to the technical field of high-voltage generators, in particular to a control system and a control method of a medical X-ray high-voltage generator.
Background
At present, a high voltage generator is needed to be used in the medical X-ray process, and the high voltage generator is also called as a direct current high voltage generator, which is a traditional name of a high voltage power supply, and refers to a high voltage power supply mainly used in insulation and leakage detection, the high voltage power supply and the high voltage generator are not strictly distinguished at present, an inverter in the high voltage generator is respectively connected with a rectifier bridge of a power distribution unit, a controller and a high voltage oil tank, direct current is converted into high-frequency high voltage alternating current according to a driving signal of the controller and is provided for the high voltage oil tank, but the high voltage oil tank has the problem of difficult heat dissipation when in use, secondly, when a rheostat for adjusting the whole current in the existing high voltage generator is connected in series in a circuit, and when the rheostat in series connection is adjusted, the current adjustment is sensitive, the change in the current adjustment process is easy, secondly, the protection circuit in the prior art is single, and the protection to the high voltage generator is single.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a control system and a control method of a medical X-ray high-voltage generator.
In order to achieve the purpose, the invention adopts the following technical scheme:
a control system of a medical X-ray high-voltage generator comprises a high-voltage generator body, wherein a high-voltage oil tank arranged on a main line is arranged in the high-voltage generator body, and a regulating circuit is arranged on the main line in parallel with the high-voltage oil tank;
the regulating circuit comprises an adjustable rheostat and a heat dissipation regulating base;
the high-pressure oil tank is arranged on the heat dissipation regulation base, an annular groove is arranged in the heat dissipation regulation base, a first annular magnet and a second annular magnet are fixedly connected to both sides of the annular groove, and the opposite sides of the first annular magnet and the second annular magnet are opposite in magnetism, a rotary conducting ring is arranged between the first annular magnet and the second annular magnet, an upper conducting ring and a lower conducting ring are respectively arranged at the upper bottom and the lower bottom of the annular groove, and both ends of the rotary conducting ring are respectively contacted with the upper conducting ring and the lower conducting ring, the lower conducting ring is electrically connected with the main circuit, the bottom of the rotary conducting ring is fixedly connected with a plurality of insulating rods, the insulating rods are fixedly connected with the same central shaft, a lower control cavity and an upper heat dissipation cavity are formed in the heat dissipation regulation and control base, the central shaft is located in the lower control cavity, and a centrifugal device is mounted on the central shaft;
the inner side wall of the lower control cavity is provided with a ring cavity, the inner side wall of the ring cavity is horizontally and slidably connected with a sliding block, the sliding block is controlled by a centrifugal device, the inner side wall of the ring cavity is provided with a sliding opening for the sliding block to slide, a conductive block is arranged in the sliding block, the upper side and the lower side of the sliding block are respectively provided with a plurality of conductive mechanisms, the inner side wall of the ring cavity is fixedly connected with an electric communication block, the electric communication block is electrically connected with a main circuit, the conductive mechanisms are electrically connected with the electric communication block and an upper;
the utility model discloses a heat dissipation device, including center pin, fan blade, heat dissipation chamber, a plurality of louvres have been seted up to the top in heat dissipation chamber, go up the inside wall fixedly connected with intake pipe in heat dissipation chamber.
Preferably, centrifugal device is including fixed solid fixed ring of cup joint on the center pin lateral wall, a plurality of mounting grooves have been seted up to solid fixed ring's lateral wall, sliding connection has centrifugal piece in the mounting groove, just the interior bottom of centrifugal piece and mounting groove is through first spring coupling.
Preferably, electrically conductive mechanism is including seting up the groove that slides out on the sliding block lateral wall, it has the connection guide block to slide in the groove, just to connect the guide block and be connected with the conducting block electricity through the elasticity guide piece, connect the guide block and electrically communicate the piece and go up the conducting ring contact, the notch department threaded connection in groove that slides out has the sealing plug.
Preferably, the abutting device comprises a threaded chock block in threaded connection with the outlet of the sliding opening, the threaded chock block is connected with a stop block through a second spring, and the stop block abuts against the sliding block;
the utility model discloses a slide gate, including the sliding opening, the sliding opening is provided with the inside wall of sliding opening, sliding connection has the control block in the inside wall of sliding opening, the inside wall of sliding opening rotates and is connected with the screw rod, just the screw rod rotates with the inside wall of sliding opening to be connected, screw rod and control block threaded connection, seted up on the control block and accomodate the groove, accomodate the inslot and be provided with the abaculus, seted up on the sliding block and set up the embedded groove corresponding with the abaculus.
A control method of a medical X-ray high-voltage generator control system comprises the following processes:
the resistance regulation and control system comprises: when the current of the whole body in the high-voltage generator body is adjusted, the branch resistance connected in parallel on the high-voltage oil tank is adjusted through the adjustable rheostat, and due to the parallel connection, the resistance adjustment of the adjustable rheostat has small influence on the adjustment range of the whole resistance in the circuit, so that the whole resistance in the circuit is adjusted more accurately;
overload protection system: after the device is electrified, the resistor of the high-voltage oil tank can be set in advance to be a stable resistor under the condition that the resistor is not connected with the regulating circuit in parallel, namely the whole current is stable normal current under the condition;
after the regulating circuit is connected in parallel, the total resistance of the adjustable rheostat in the high-voltage oil tank and the regulating circuit is smaller than the resistance of the high-voltage oil tank and the adjustable rheostat, the current of the total circuit is increased, when the current of the branch is increased due to the adjustment of the resistance of the adjustable rheostat, the rotation of the rotating conducting ring is realized under the drive of ampere because the rotating conducting ring is in a magnetic field between the first annular magnet and the second annular magnet, the central shaft is driven to rotate through the insulating rod, the ampere force borne by the rotating conducting ring is increased when the current of the branch of the adjustable rheostat is increased, so that the rotating speed of the central shaft is increased, the centrifugal block is subjected to centrifugal force, the centrifugal block moves outwards, the centrifugal block moving outwards pushes the sliding block to move forwards, the connecting guide block on the centrifugal block is slowly separated from the electric communicating block and the upper conducting ring, and, the centrifugal block just separates the connecting guide block on the sliding block from the electric communication block and the upper conductive ring, the electric communication block and the upper conductive ring are disconnected, the branch circuit stops being electrified, only the high-voltage oil tank is electrified, and the whole current is adjusted back to be within a safety range;
the central shaft rotates and simultaneously drives the fan blades to rotate, and then the airflow generated by the fan blades moves upwards, so that the outer surface of the high-pressure oil tank is cooled.
Compared with the prior art, the invention has the following advantages:
1. the current regulation of the high-voltage generator is realized through the adjustable resistor in the parallel regulation and control circuit, so that the regulation range degree is small, the problem of high overall regulation sensitivity of the current in the circuit is avoided, and the precise regulation is facilitated;
2. the central shaft is driven to rotate by the action of ampere force through the rotating conducting ring in the parallel regulating and controlling circuit, the centrifugal block controls the sliding block to move under the action of centrifugal force, and when the regulating and controlling circuit reaches preset protection current, the connecting guide block on the sliding block is separated from the electric communication block and the upper conducting ring, the regulating and controlling circuit is broken, so that normal circuit current when the high-voltage oil tank is connected in series is recovered, namely the regulating and controlling circuit plays a circuit protection function on the high-voltage generator;
3. the rotation of center pin drives the rotation of flabellum among this device to can produce the heat dissipation air current, the heat dissipation air current blows to high-pressure fuel tank through the louvre, then realizes the cooling treatment to high-pressure fuel tank, the quick heat dissipation of the high-pressure fuel tank of being convenient for.
Drawings
FIG. 1 is a schematic structural diagram of a control system of a medical X-ray high voltage generator according to the present invention;
fig. 2 is a schematic structural diagram of a heat dissipation regulation and control base in a control system of a medical X-ray high voltage generator according to the present invention;
fig. 3 is an enlarged view of a portion a in fig. 2.
In the figure: 1 main line, 2 high-pressure oil tank, 3 adjustable rheostat, 4 heat dissipation regulation and control base, 5 first annular magnet, 6 second annular magnet, 7 rotation conducting ring, 8 upper conducting ring, 9 lower conducting ring, 10 insulating rod, 11 central shaft, 12 lower control cavity, 13 upper heat dissipation cavity, 14 annular cavity, 15 sliding block, 16 conducting block, 17 electric communication block, 18 fan blade, 19 air inlet pipe, 20 heat dissipation hole, 21 fixed ring, 22 centrifugal block, 23 connection conducting block, 24 sealing plug, 25 screw plug, 26 baffle, 27 control block, 28 screw rod, 29 embedded block, 30 embedded groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, a control system of a medical X-ray high voltage generator comprises a high voltage generator body, a high voltage oil tank 2 arranged on a main line 1 is arranged in the high voltage generator body, and a regulating circuit is arranged on the main line 1 in parallel with the high voltage oil tank 2;
the regulating circuit comprises an adjustable resistor 3 and a heat dissipation regulating base 4;
the high-pressure oil tank 2 is arranged on the heat dissipation regulation and control base 4, an annular groove is arranged in the heat dissipation regulation and control base 4, a first annular magnet 5 and a second annular magnet 6 are fixedly connected with the two sides of the annular groove, and the opposite sides of the first annular magnet 5 and the second annular magnet 6 are opposite in magnetism, a rotary conducting ring 7 is arranged between the first annular magnet 5 and the second annular magnet 6, an upper conducting ring 8 and a lower conducting ring 9 are respectively arranged at the upper bottom and the lower bottom of the annular groove, two ends of the rotating conducting ring 7 are respectively contacted with the upper conducting ring 8 and the lower conducting ring 9, the lower conducting ring 9 is electrically connected with the main line 1, the bottom of the rotating conducting ring 7 is fixedly connected with a plurality of insulating rods 10, the insulating rods 10 are fixedly connected with the same central shaft 11, a lower control cavity 12 and an upper heat dissipation cavity 13 are formed in the heat dissipation regulation and control base 4, the central shaft 11 is positioned in the lower control cavity 12, and a centrifugal device is installed on the central shaft 11;
further, centrifugal device is including fixed solid fixed ring 21 of cup joint on 11 lateral walls of center pin, and a plurality of mounting grooves have been seted up to solid fixed ring 21's lateral wall, and sliding connection has centrifugal piece 22 in the mounting groove, and centrifugal piece 22 and the interior bottom of mounting groove are through first spring coupling, realize centrifugal piece 22 through centrifugal device's setting that the degree of removal that sliding block 15 is preceding under different rotational speeds.
An annular cavity 14 is formed in the inner side wall of the lower control cavity 12, a sliding block 15 is horizontally and slidably connected to the inner side wall of the annular cavity 14, the sliding block 15 is controlled by a centrifugal device, a sliding opening for sliding the sliding block 15 is formed in the inner side wall of the annular cavity 14, a conductive block 16 is arranged in the sliding block 15, a plurality of conductive mechanisms are arranged on the upper side and the lower side of the sliding block 15, an electric communication block 17 is fixedly connected to the inner side wall of the annular cavity 14, the electric communication block 17 is electrically connected with the main circuit 1, the conductive mechanisms are electrically connected with the;
further, the conductive mechanism comprises a sliding groove arranged on the outer side wall of the sliding block 15, a connecting guide block 23 is connected in the sliding groove in a sliding manner, the connecting guide block 23 is electrically connected with the conductive block 16 through an elastic guide sheet, the connecting guide block 23 is contacted with the electric communication block 17 and the upper conductive ring 8, a sealing plug 24 is connected at the notch of the sliding groove in a threaded manner, the conductive block 16 is electrically connected with the electric communication block 17 and the upper conductive ring 8 through the conductive mechanism, when the connecting guide block 23 is not contacted with the electric communication block 17 and the upper conductive ring 8, the branch is broken, the sliding block 15 can be adjusted in an initial state by arranging the sealing plug 24, namely, the connecting guide blocks 23 positioned behind can prevent the connecting guide block 23 from being contacted with the electric communication block 17 and the upper conductive ring 8 through the sealing plug 24, so that the effective number of the connecting guide block 23, the electric communication block 17 and the upper conductive ring 8, so as to control the setting of different preset breaking currents;
still further, the abutting device comprises a threaded chock 25 which is in threaded connection with the outlet of the sliding opening, the threaded chock 25 is connected with a stop block 26 through a second spring, and the stop block 26 abuts against the sliding block 15; the limit of the sliding block 15 is realized through the stop 26, the sliding block 15 is prevented from moving randomly, and the reset of the initial position of the sliding block 15 is realized through the stop 26 by the second spring;
wherein, interior sliding groove has been seted up to the inside wall of sliding opening, interior sliding connection has control block 27, the inside wall of sliding opening rotates and is connected with screw rod 28, and screw rod 28 rotates with the inside wall of interior sliding groove to be connected, screw rod 28 and control block 27 threaded connection, the groove of accomodating has been seted up on the control block 27, accomodate the inslot and be provided with abaculus 29, set up the embedded groove 30 corresponding with abaculus 29 on the sliding block 15, position through screw rod 28 adjustable control block 27, and then sliding block 15 when breaking to the control circuit is spacing, imbed in the embedded groove 30 through abaculus 29 promptly.
The outer side wall of the top end part of the central shaft 11 is fixedly connected with a plurality of fan blades 18, the fan blades 18 are positioned in the upper heat dissipation cavity 13, a plurality of heat dissipation holes 20 are formed in the top of the upper heat dissipation cavity 13, and the inner side wall of the upper heat dissipation cavity 13 is fixedly connected with an air inlet pipe 19.
Secondly, a control method of the medical X-ray high-voltage generator control system is disclosed, which comprises the following processes:
the resistance regulation and control system comprises: when the current of the whole body in the high-voltage generator body is adjusted, the branch resistance connected in parallel on the high-voltage oil tank 2 is adjusted through the adjustable resistor 3, and due to the parallel connection, the resistance adjustment of the adjustable resistor 3 has small influence on the adjustment range of the whole resistance in the circuit, so that the adjustment of the whole resistance in the circuit is more accurate;
overload protection system: after the device is electrified, the resistor of the high-voltage oil tank 2 can be set in advance to be a stable resistor under the condition that the resistor is not connected with the regulating circuit in parallel, namely the whole current is stable normal current under the condition;
after the regulating and controlling circuit is connected in parallel, the total resistance of the high-pressure oil tank 2 and the adjustable resistor 3 in the regulating and controlling circuit is smaller than the resistance of the high-pressure oil tank 2 and the adjustable resistor 3, the total circuit current becomes larger, wherein when the resistance of the adjustable resistor 3 is regulated to cause the branch current to become larger, because the rotating conducting ring 7 is in a magnetic field between the first annular magnet 5 and the second annular magnet 6, the rotating conducting ring 7 is driven by ampere to rotate, and then the central shaft 11 is driven by the insulating rod 10 to rotate, when the branch current of the adjustable resistor 3 becomes larger, the ampere force applied to the rotating conducting ring 7 is larger, so that the rotating speed of the central shaft 11 is faster, and further the centrifugal block 22 is subjected to centrifugal force to become larger, the centrifugal block 22 moves outwards, the centrifugal block 22 moving outwards pushes the sliding block 15 to move forwards, and the connecting conducting block 23 on the sliding block is slowly separated from the electric connecting block 17, when the current of the rotating conducting ring 7 reaches the preset current, the centrifugal block 22 just separates the connecting guide block 23 on the sliding block 15 from the electric communicating block 17 and the upper conducting ring 8, the electric communicating block 17 is disconnected from the upper conducting ring 8, the branch stops being electrified, only the high-voltage oil tank 2 is electrified, and the whole current is adjusted back to the safe range;
in addition, when the central shaft 11 rotates and simultaneously drives the fan blades 18 to rotate, the airflow generated by the fan blades 18 moves upwards, so that the outer surface of the high-pressure oil tank 2 is cooled.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A control system of a medical X-ray high-voltage generator comprises a high-voltage generator body, wherein a high-voltage oil tank (2) arranged on a main line (1) is arranged in the high-voltage generator body, and is characterized in that a regulating circuit is arranged on the main line (1) in parallel with the high-voltage oil tank (2);
the regulating circuit comprises an adjustable rheostat (3) and a heat dissipation regulating base (4);
the high-pressure oil tank (2) is installed on a heat dissipation regulation and control base (4), an annular groove is formed in the heat dissipation regulation and control base (4), a first annular magnet (5) and a second annular magnet (6) are fixedly connected to the two sides of the annular groove, the opposite sides of the first annular magnet (5) and the second annular magnet (6) are opposite in magnetism, a rotating conductive ring (7) is arranged between the first annular magnet (5) and the second annular magnet (6), an upper conductive ring (8) and a lower conductive ring (9) are respectively arranged at the upper bottom and the lower bottom of the annular groove, the two ends of the rotating conductive ring (7) are respectively contacted with the upper conductive ring (8) and the lower conductive ring (9), the lower conductive ring (9) is electrically connected with a main line (1), a plurality of insulating rods (10) are fixedly connected to the bottom of the rotating conductive ring (7), and the insulating rods (10) are fixedly connected with the same central shaft, a lower control cavity (12) and an upper heat dissipation cavity (13) are formed in the heat dissipation regulation and control base (4), the central shaft (11) is located in the lower control cavity (12), and a centrifugal device is mounted on the central shaft (11);
the inner side wall of the lower control cavity (12) is provided with an annular cavity (14), the inner side wall of the annular cavity (14) is horizontally connected with a sliding block (15) in a sliding manner, the sliding block (15) is controlled by a centrifugal device, the inner side wall of the annular cavity (14) is provided with a sliding opening used for sliding the sliding block (15), a conductive block (16) is arranged in the sliding block (15), a plurality of conductive mechanisms are arranged on the upper side and the lower side of the sliding block (15), the inner side wall of the annular cavity (14) is fixedly connected with an electric communication block (17), the electric communication block (17) is electrically connected with a main circuit (1), the conductive mechanisms are electrically connected with the electric communication block (17) and an upper conductive ring (8;
the utility model discloses a heat dissipation device, including center pin (11), top portion lateral wall fixedly connected with a plurality of flabellums (18) of top, flabellum (18) are located heat dissipation chamber (13), a plurality of louvres (20) have been seted up at the top of going up heat dissipation chamber (13), the inside wall fixedly connected with intake pipe (19) of going up heat dissipation chamber (13).
2. The control system of a medical X-ray high voltage generator as claimed in claim 1, wherein the centrifugal device comprises a fixing ring (21) fixedly sleeved on the outer side wall of the central shaft (11), the outer side wall of the fixing ring (21) is provided with a plurality of mounting grooves, the mounting grooves are slidably connected with centrifugal blocks (22), and the centrifugal blocks (22) are connected with the inner bottom of the mounting grooves through first springs.
3. The control system of a medical X-ray high voltage generator as claimed in claim 1, wherein the conductive mechanism comprises a slide-out groove formed on the outer side wall of the slide block (15), a connecting guide block (23) is slidably connected in the slide-out groove, the connecting guide block (23) is electrically connected with the conductive block (16) through an elastic guide piece, the connecting guide block (23) is in contact with the electric communication block (17) and the upper conductive ring (8), and a sealing plug (24) is in threaded connection with the notch of the slide-out groove.
4. The control system of a medical X-ray high-voltage generator according to claim 1, wherein the abutting device comprises a threaded plug (25) which is threaded at the outlet of the sliding opening, the threaded plug (25) is connected with a stop block (26) through a second spring, and the stop block (26) abuts against the sliding block (15);
interior sliding groove has been seted up to the inside wall of sliding opening, interior sliding connection has control block (27), the inside wall rotation of sliding opening is connected with screw rod (28), just screw rod (28) rotate with the inside wall of interior sliding groove and are connected, screw rod (28) and control block (27) threaded connection, seted up on control block (27) and accomodate the groove, accomodate the inslot and be provided with abaculus (29), set up on sliding block (15) and embedded groove (30) corresponding with abaculus (29).
5. A control method of a medical X-ray high-voltage generator control system is characterized by comprising the following processes:
the resistance regulation and control system comprises: when the current of the whole body in the high-voltage generator body is adjusted, the branch resistance connected in parallel on the high-voltage oil tank (2) is adjusted through the adjustable rheostat (3), and due to the parallel connection, the influence of the resistance adjustment of the adjustable rheostat (3) on the adjustment range of the whole resistance in the circuit is small, so that the adjustment of the whole resistance in the circuit is more accurate;
overload protection system: after the device is electrified, the resistor of the high-voltage oil tank (2) can be set in advance to be a stable resistor under the condition of not being connected with the regulating and controlling circuit in parallel, namely the whole current is stable normal current under the condition;
after the regulating circuit is connected in parallel, the total resistance of the high-voltage oil tank (2) and the adjustable rheostat (3) in the regulating circuit is smaller than the resistance of the high-voltage oil tank (2) and the adjustable rheostat (3), the total circuit current is increased, when the branch current is increased due to the adjustment of the resistance of the adjustable rheostat (3), the rotating conducting ring (7) is driven to rotate under the action of ampere because the rotating conducting ring (7) is in a magnetic field between the first annular magnet (5) and the second annular magnet (6), the central shaft (11) is driven to rotate through the insulating rod (10), the centrifugal block (22) moves outwards when the branch current of the adjustable rheostat (3) is increased, the ampere force borne by the rotating conducting ring (7) is increased, so that the rotating speed of the central shaft (11) is increased, the centrifugal block (22) is subjected to the increase of centrifugal force, the centrifugal block (22) moves outwards, and the centrifugal block (22) moving outwards pushes the sliding block (15), the connecting guide block (23) on the centrifugal block is slowly separated from the electric communicating block (17) and the upper conductive ring (8), then when the current for rotating the conductive ring (7) reaches a preset current, the centrifugal block (22) just separates the connecting guide block (23) on the sliding block (15) from the electric communicating block (17) and the upper conductive ring (8), the electric communicating block (17) is disconnected from the upper conductive ring (8), the branch circuit stops electrifying, only the high-voltage oil tank (2) is electrified, and the whole current is adjusted back to a safe range;
the central shaft (11) rotates and simultaneously drives the fan blades (18) to rotate, so that the air flow generated by the fan blades (18) moves upwards, and the outer surface of the high-pressure oil tank (2) is cooled.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010728958.8A CN111726924A (en) | 2020-07-27 | 2020-07-27 | Control system and control method of medical X-ray high-voltage generator |
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| CN202010728958.8A CN111726924A (en) | 2020-07-27 | 2020-07-27 | Control system and control method of medical X-ray high-voltage generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353373A (en) * | 2022-01-12 | 2022-04-15 | 深圳市深图医学影像设备有限公司 | Intelligent refrigeration system applied to CT high-voltage generator |
| CN117596759A (en) * | 2024-01-19 | 2024-02-23 | 上海超群检测科技股份有限公司 | X-ray apparatus |
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| CN117596759B (en) * | 2024-01-19 | 2024-04-05 | 上海超群检测科技股份有限公司 | X-ray apparatus |
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Application publication date: 20200929 |