CN102340182A - Power system supplying power to medical imaging system - Google Patents
Power system supplying power to medical imaging system Download PDFInfo
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- CN102340182A CN102340182A CN2010102389603A CN201010238960A CN102340182A CN 102340182 A CN102340182 A CN 102340182A CN 2010102389603 A CN2010102389603 A CN 2010102389603A CN 201010238960 A CN201010238960 A CN 201010238960A CN 102340182 A CN102340182 A CN 102340182A
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Abstract
The invention relates to a power supply system, in particular to a power system supplying power to a medical imaging system. The power system comprises energy storage equipment, a control unit and a mode switching unit, wherein the energy storage equipment has a charging mode and a discharging mode, is charged by an external main power supply in the charging mode and supplies the power to the medical imaging system in the discharging mode; the control unit receives a signal of starting or finishing examination from the medical imaging system, and transmits a control signal of switching the energy storage equipment into the discharging mode or the charging mode to the mode switching unit; and the mode switching unit receives the control signal, and is used for switching the energy storage equipment into the discharging mode or the charging mode. The power system reduces the high-capacity requirement of a client power grid, thereby decreasing cost.
Description
Technical field
The present invention relates to a kind of electric power system, relate in particular to a kind of electric power system for the medical image system power supply.
Background technology
Medical image system is the system of operation continuously that loads a kind of intermittence like X ray computer fault imaging (CT) system, X ray camera chain, magnetic resonance (MR) system etc., wherein; Intermittently loading operation continuously is meant: there are standby and work two states in system; Under this two states, system moves always, and it is different just to keep the required power of operation; Under holding state; Keeping the required power of system operation, to need only several KVA just enough, but in working order down, because operating current strengthens suddenly; Make and to keep that system's required power of operation rises to tens KVA even more than 100 KVA that the phenomenon of this ascending current/power suddenly promptly is called intermittently and loads.The power required down in working order owing to system is very big; This just requires jumbo electrical network can keep the operating state of system; For example the capacity of low side CT and 2 row CT requirement electrical networks is 40KVA usually, and it is 120KVA or bigger that high-end CT then requires the capacity of electrical network.If capacity is big inadequately, the electrical network of medical image system client (like hospital) of just must upgrading, thus increased cost.
Except the upgrading electrical network, also there is not better way to solve the big inadequately problem of net capacity at present.
Granted publication number discloses a kind of high pressure/extra-high voltage transmission AC-battery power source for the utility model patent of CN 201063459Y; It comprises that a current transformer is got can power supply and a sharp light delivery power supply; Current transformer is got ability power supply and the parallel connection of sharp light delivery power supply; When current transformer is got ability power supply operate as normal; Being got by current transformer can power supply be high pressure/extra-high voltage transmission power supply, get when can power work undesired when current transformer, and be that high pressure/extra-high voltage transmission is supplied power by sharp light delivery power supply.
Summary of the invention
In view of this, the present invention proposes a kind of electric power system for the medical image system power supply, with the big capacity requirement of reduction to the client electrical network, thereby reduces cost.
The present invention provides a kind of electric power system for the medical image system power supply; Said electric power system comprises: an energy storage device; One control unit and a mode switch element, wherein, said energy storage device has charge mode and discharge mode; Under charge mode, be the charging of said energy storage device by external main power source, said energy storage device is the medical image system power supply under discharge mode; Said control unit receives that medical image system sends begins the signal checking or finish to check; If said control unit receives the signal that finishes inspection; Then send the control signal that switches to charge mode to said mode switch element; If said control unit receives the signal that begins to check, then send the control signal that switches to discharge mode to said mode switch element; Said mode switch element receives said control signal; If said mode switch element receives the control signal that switches to charge mode; Then said energy storage device is switched to charge mode; If said mode switch element receives the control signal that switches to discharge mode, then said energy storage device is switched to discharge mode.
Said electric power system further comprises; One rectifier; Be used to receive the charging signals that said mode switch element is sent; Convert the alternating current of external main power source into direct current and think said energy storage device charging, said charging signals sends switched to the control signal of charge mode in reception by said mode switch element after.
Wherein, said energy storage device further comprises an electricity quantity display module, is used under charge mode, showing the charging progress of said energy storage device, under discharge mode, shows the dump energy of said energy storage device.
Preferably, said energy storage device is a super capacitor or a storage battery.
Said electric power system further comprises; One computing unit; Be used to calculate medical image system and check required power; And compare with maximum power that said energy storage device can provide, if saidly check that required power is less than or equal to the maximum power of said energy storage device, then said mode switch element only switches to discharge mode with said energy storage device; If the said maximum power of checking required power greater than said energy storage device; Then said mode switch element both switched to discharge mode with said energy storage device; Send a power supply signal to a rectifier again, making external main power source is the medical image system power supply through said rectifier.
Preferably, said electric power system is incorporated in the medical image system.
Preferably, said control unit and said mode switch element are incorporated in the control module of medical image system.
Preferably, said computing unit is incorporated in the control module of medical image system.
Preferably, said rectifier is the rectifier of medical image system.
From such scheme, can find out; Because the present invention provides a kind of electric power system for the medical image system power supply; It utilizes a kind of energy storage device to supply power for medical image system, rather than is the medical image system power supply by the external main power source from the client electrical network only, has reduced the big capacity requirement to the client electrical network; For example can the capacity of electrical network be reduced to tens KVA or reduce to tens KVA from tens KVA from KVA up to a hundred, thereby reduced cost.The design of a kind of power supply power supply of this employing of the present invention is different from aforementioned utility model and adopts two kinds of power supplys, and promptly current transformer is got the design of ability power supply and Laser Power Devices.
Description of drawings
The sketch map of the course of work that Fig. 1 is recharged for electric power system of the present invention.
Fig. 2 is the sketch map of the course of work of the high pressure generator power supply of CT system for electric power system of the present invention.
Fig. 3 is the sketch map of another course of work of the high pressure generator power supply of CT system for electric power system of the present invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below lift embodiment to further explain of the present invention.
The present invention provides a kind of electric power system for the medical image system power supply, and it utilizes a kind of energy storage device to supply power for medical image system, has reduced the big capacity requirement to the client electrical network, thereby has reduced cost.
Be example with the CT system below, electric power system is elaborated for the process of CT system power supply and the charge/discharge mode of operation of electric power system.
The sketch map of the course of work that Fig. 1 is recharged for electric power system of the present invention.Electric power system 1 comprises a control unit 11, a mode switch element 12, an energy storage device 13 and a rectifier 14 among the figure; Wherein energy storage device 13 has charge mode and two kinds of mode of operations of discharge mode; Rectifier 14 is used for converting the alternating current of external main power source (from the client electrical network) into direct current, thinks energy storage device 13 chargings under the charge mode.
The course of work of electric power system charge mode is following among Fig. 1: the end sweep signal that control unit 11 reception CT systems send (promptly; Finish the signal of inspection); A low level signal for example; Control unit 11 sends the control signal that switches to charge mode according to this signal to mode switch element 12, after mode switch element 12 receives this control signal, on the one hand energy storage device 13 is switched to charge mode; Sending charging signals to rectifier 14 on the other hand, is energy storage device 13 chargings so rectifier 14 converts the alternating current of external main power source into direct current.External main power source with dashed lines frame indicates among Fig. 1, and reason is that external main power source is not the part of electric power system.
Preferably, energy storage device 13 further comprises an electricity quantity display module (not shown), is used under charge mode, showing the charging progress of energy storage device 13, under discharge mode, shows the dump energy of energy storage device.For example electricity quantity display module shows charging progress or dump energy with the form of progress bar or percentage.
Promptly get into holding state after the scanning of CT system finishing; Next examine patient gets into inspection chamber and accepts CT scan at this moment; Before the scanning beginning; Personal information and patient directions that the doctor needs the time of a few minutes (for example about 5 minutes) to fill in patient usually lie in the first-class item of examination couch with suitable posture, that is to say that electric power system only has the time about these a few minutes to charge; This just requires the energy storage device of electric power system can in these a few minutes, accomplish charging fast, even is full of.On the other hand, electric power system is its power supply in the time of will carrying out scanning in the CT system, because electric current can strengthen suddenly in scanning process, so it is very big to keep the required power of CT system execution scanning, so the energy storage device of electric power system also will satisfy powerful requirement.
Based on above-mentioned two aspects, energy storage device 13 should be a powerful equipment, can accomplish charging in a few minutes even in tens seconds fast, preferably can in a few minutes even in tens seconds, be full of.But before the beginning single pass; Energy storage device is not must be full of electricity or reach 100% of rated capacity; As long as can satisfy the required power of this scanning, for example scan the power that certain object to be checked only needs 30KVA, and the maximum power that energy storage device is full of electric energy to be provided be 60KVA; When then this energy storage device being charged, only need charge to more than 50% and get final product.But preferably, energy storage device is full of the maximum power that provided of electricity and will satisfies as far as possible and scan the required power of different objects to be checked.
Preferably, energy storage device 13 is a super capacitor.The monomer capacitance range of super capacitor is generally 0.1F--1000F (the present invention can use a plurality of monomer super capacitor parallel connections); Its charging rate is fast; Charging can reach more than 95% of its rated capacity in 10 seconds～10 minutes, and its large current discharging capability can satisfy in the scanning process CT system to the requirement of big electric current.
Preferably; Energy storage device 13 is-storage battery; But usually the charging interval ratio super capacitance of storage battery will be grown, therefore to select powerful, can be in a few minutes, even accomplish charging in tens seconds; Preferably can be full of the storage battery of electricity in a few minutes even in tens seconds, to satisfy in the scanning process CT system to the requirement of big electric current.
In addition, because X-ray tube is to the requirement of heat radiation with to the restriction of exposure current/power, making X-ray tube allow the maximum duration with the maximum power exposure is about 10s, and the length of real exposure time can reach 100 seconds, but that power is wanted is much little.Exposure power like X-ray tube is 400kWs, the 10s that can make public when then exposure power is for 40kW, and the 100s that then can make public when exposure power is 4kW if exceed the time for exposure, will damage X-ray tube.Based on this, the high power discharge time of energy storage device will be satisfied the requirement of this scanning X-ray tube to the time for exposure.
In addition, when external main power source is the electric power system charging, also supply power to keep its holding state for the CT system.After the CT system executes scanning; Promptly get into holding state; Other equipment of the high pressure generator of CT system, X-ray tube and need power supply are not perhaps worked with very little power work basically at this moment; Therefore do not need the client electrical network that the big capacity of tens KVA even KVA up to a hundred is arranged, only need several KVA can keep the holding state of CT system.Wherein, need the miscellaneous equipment of power supply to be meant except that rectifier, high pressure generator and X-ray tube all equipment that need supply power in the CT system, like motor, fan etc.
Fig. 2 is the sketch map of the course of work of the high pressure generator power supply of CT system for electric power system of the present invention.The concrete course of work is following: the beginning sweep signal that control unit 11 reception CT systems send (promptly; The signal that begins to check); A high level signal for example, control unit 11 sends the control signal that switches to discharge mode according to this signal to mode switch element 12, and mode switch element 12 receives these control signals energy storage device 13 is switched to discharge mode; So energy storage device 13 is high pressure generator 21 power supplies, and show dump energy by electricity quantity display module.Wherein energy storage device 13 is received high pressure generator 21 in succession through some inter-modules of CT system.Here energy storage device 13 is used to high pressure generator 21 power supplies rather than is the power supply of whole C T system; Reason is that high pressure generator is the main power consumption parts of CT system, and high pressure generator is that X-ray tube provides high voltage so that the electronics high-speed cruising that X-ray tube produces.The low pressure that is used to heat the X-ray tube filament then belongs to other equipment that need power supply.
In electric power system is in the process of high pressure generator 21 power supplies; Other power devices that external main power source need be supplied power for the CT system; Because these parts can not strengthen current/power suddenly when the execution scanning of CT system, so the client electrical network is not still had jumbo requirement.
But; Because energy storage device; For example the capacitance of super capacitor is limited; Its maximum power that can provide also is limited, and the required power (being that medical image system is checked required power) in scanning different human body position is different, and the maximum power that energy storage device can provide might not satisfy the demand of scanning human body all sites to power; During like the maximum power that can provide greater than energy storage device when scanning human body a certain position power demand, just needing energy storage device is that high pressure generator is supplied power together with external main power source.So electric power system of the present invention further comprises a computing unit 15; Be used to calculate the required power P 1 of scanning human body different parts; And compare with maximum power P2 that said energy storage device can provide, afterwards comparative result is sent to said mode switch element 12.If P2＞P1 then only adopts energy storage device 13 power supplies to get final product the course of work just shown in Figure 2; If P2＜P1, then need energy storage device 13 together with external main power source for the high pressure generator power supply, as shown in Figure 3, be the sketch map of the high pressure generator of CT system another course of work of supplying power for electric power system of the present invention.The concrete course of work is following: the beginning sweep signal that control unit 11 reception CT systems send (promptly; The signal that begins to check); A high level signal for example, control unit 11 sends the control signal that switches to discharge mode according to this signal to mode switch element 12, and mode switch element 12 receives these control signals energy storage device 13 is switched to discharge mode; So energy storage device 13 is high pressure generator 21 power supplies, and show dump energy by electricity quantity display module; When control unit 11 receives the beginning sweep signal; Computing unit 15 also receives and should scan commencing signal; Calculate carrying out the required power P 1 of this scanning, and compare with maximum power P2 that said energy storage device can provide since shown in Figure 3 be another course of work that energy storage device is supplied power for high pressure generator together with external main power source; This moment P2＜P1; So comparative result P2＜P1 is sent to mode switch element 12, mode switch element 12 is sent power supply signal according to this comparative result to rectifier 14, so rectifier 14 is high pressure generator 21 power supplies after converting the alternating current of external main power source into direct current.Among Fig. 3, energy storage device 13 all is to receive high pressure generator 21 in succession through some inter-modules of CT system with rectifier 14.
The same with the course of work shown in Figure 2; Another course of work shown in Figure 3 also needs external main power source for needing other power devices of power supply; Improved requirement though compare the course of work of Fig. 2, owing to energy storage device 13 is arranged together for high pressure generator 21 power supplies, so the prior art of comparing to net capacity; Another course of work shown in Figure 3 has still reduced the demand to net capacity largely; In addition, also avoided ending scanning in scanning process, caused threatening the situation generation of CT system and patient's safety because of energy storage device 13 damages.
After executing scanning, control unit 11 receives the end sweep signal that the CT system sends, so electric power system switches to charge mode as shown in Figure 1 once more, is energy storage device 13 chargings by external main power source; After the beginning sweep signal that control unit 11 reception CT systems send; Electric power system switches to discharge mode once more, thinks that high pressure generator 21 is supplied power separately (course of work as shown in Figure 2) or is high pressure generator 21 power supplies (another course of work as shown in Figure 3) together with external main power source.So move in circles.
In addition, electric power system of the present invention can place the outside of CT system, for example is that whole electric power system is provided with a power distribution cabinet separately in the outside of CT frame, and each part of electric power system is all newly acquired in this case.Preferably, this electric power system is incorporated in the CT system, compares the embodiment of the outside that places the CT system, can save physical space, also practice thrift cost.Because usually comprise rectifier in the CT system, can directly utilize the rectifier of CT system and needn't extraly acquire a rectifier, this has just practiced thrift cost, has also saved physical space; Control unit, mode switch element and computing unit also can be incorporated in the control module of CT system simultaneously, and needn't distribute a standalone module for control unit, mode switch element and computing unit separately, and this has just saved physical space; Energy storage device also can place the frame of CT system, perhaps places the power distribution cabinet of CT system, and this has also saved physical space.
Because the CT system comprises rectifier, high pressure generator 21, X-ray tube, needs the miscellaneous equipment and the control module of power supply; When electric power system is incorporated in the CT system; Control unit 11, mode switch element 12 and computing unit 15 are incorporated in the control module of CT system; Rectifier 14 is the rectifier of CT system; Energy storage device 13 places the frame of CT system, and the signal that finishes described in Fig. 1 to begin to scan described in signal, Fig. 2 and Fig. 3 of scanning all is to be sent by the control module of CT system.But Fig. 1, Fig. 2 and the course of work shown in Figure 3 do not change because of electric power system is incorporated in the CT system, and the control relation of each part of electric power system does not change yet.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. electric power system for the medical image system power supply, said electric power system comprises: an energy storage device, a control unit and a mode switch element, wherein,
Said energy storage device has charge mode and discharge mode, under charge mode, is the charging of said energy storage device by external main power source, and said energy storage device is the medical image system power supply under discharge mode;
Said control unit receives that medical image system sends begins the signal checking or finish to check; If said control unit receives the signal that finishes inspection; Then send the control signal that switches to charge mode to said mode switch element; If said control unit receives the signal that begins to check, then send the control signal that switches to discharge mode to said mode switch element;
Said mode switch element receives said control signal; If said mode switch element receives the control signal that switches to charge mode; Then said energy storage device is switched to charge mode; If said mode switch element receives the control signal that switches to discharge mode, then said energy storage device is switched to discharge mode.
2. electric power system according to claim 1; It is characterized in that; Said electric power system further comprises, a rectifier is used to receive the charging signals that said mode switch element is sent; Convert the alternating current of external main power source into direct current and think said energy storage device charging, said charging signals sends switched to the control signal of charge mode in reception by said mode switch element after.
3. electric power system according to claim 1; It is characterized in that; Said energy storage device further comprises an electricity quantity display module, is used under charge mode, showing the charging progress of said energy storage device, under discharge mode, shows the dump energy of said energy storage device.
4. electric power system according to claim 1 is characterized in that, said energy storage device is a super capacitor or a storage battery.
5. electric power system according to claim 1 is characterized in that, said electric power system further comprises,
One computing unit is used to calculate medical image system and checks required power, and compares with maximum power that said energy storage device can provide,
Check that as if said required power is less than or equal to the maximum power of said energy storage device, then said mode switch element only switches to discharge mode with said energy storage device;
If the said maximum power of checking required power greater than said energy storage device; Then said mode switch element both switched to discharge mode with said energy storage device; Send a power supply signal to a rectifier again, making external main power source is the medical image system power supply through said rectifier.
6. electric power system according to claim 1 is characterized in that said electric power system is incorporated in the medical image system.
7. electric power system according to claim 6 is characterized in that, said control unit and said mode switch element are incorporated in the control module of medical image system.
8. electric power system according to claim 5 is characterized in that said computing unit is incorporated in the control module of medical image system.
9. electric power system according to claim 2 is characterized in that, said rectifier is the rectifier of medical image system.
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| CN2010102389603A CN102340182A (en) | 2010-07-28 | 2010-07-28 | Power system supplying power to medical imaging system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104377811A (en) * | 2014-11-26 | 2015-02-25 | 南宁一举医疗电子有限公司 | X-ray machine power switching system based on lead-acid storage battery energy storage and grid electricity |
| WO2015158180A1 (en) * | 2014-04-17 | 2015-10-22 | 深圳迈瑞生物医疗电子股份有限公司 | Medical diagnostic high-frequency x-ray machine and power supply apparatus |
| CN105553069A (en) * | 2016-01-26 | 2016-05-04 | 赛诺威盛科技（北京）有限公司 | Auxiliary power supply device of computer tomography (CT) system |
| CN106473870A (en) * | 2016-12-02 | 2017-03-08 | 天津华海高圣汽车改装有限公司 | Compact integrated magnetic resonance medical vehicle |
| CN109234788A (en) * | 2018-08-03 | 2019-01-18 | 诚亿电子（嘉兴）有限公司 | Except glue regenerating device visual inspection method |
| CN109620279A (en) * | 2018-12-30 | 2019-04-16 | 上海医乐信息科技有限公司 | A kind of new energy computer tomography equipment |
| CN109998580A (en) * | 2019-04-04 | 2019-07-12 | 上海医乐信息科技有限公司 | Rotor-drive, computer tomography equipment and scan control method |
| CN110383615A (en) * | 2017-03-20 | 2019-10-25 | 通用电气公司 | Enable the computed tomography systems of peak regulation, built-in uninterruptible power source and stabilizer |
| CN111463881A (en) * | 2019-01-21 | 2020-07-28 | 株式会社岛津制作所 | Power supply device for X-ray tube and X-ray device |
| CN113937761A (en) * | 2021-10-12 | 2022-01-14 | 江苏摩科特医疗科技有限公司 | Power supply device of CT scanner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10624604B2 (en) | 2014-04-17 | 2020-04-21 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Medical diagnostic high-frequency X-ray machines and power supply devices thereof |
| WO2015158180A1 (en) * | 2014-04-17 | 2015-10-22 | 深圳迈瑞生物医疗电子股份有限公司 | Medical diagnostic high-frequency x-ray machine and power supply apparatus |
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| CN109234788A (en) * | 2018-08-03 | 2019-01-18 | 诚亿电子（嘉兴）有限公司 | Except glue regenerating device visual inspection method |
| CN109620279A (en) * | 2018-12-30 | 2019-04-16 | 上海医乐信息科技有限公司 | A kind of new energy computer tomography equipment |
| CN111463881A (en) * | 2019-01-21 | 2020-07-28 | 株式会社岛津制作所 | Power supply device for X-ray tube and X-ray device |
| CN111463881B (en) * | 2019-01-21 | 2023-04-18 | 株式会社岛津制作所 | Power supply device for X-ray tube and X-ray device |
| CN109998580A (en) * | 2019-04-04 | 2019-07-12 | 上海医乐信息科技有限公司 | Rotor-drive, computer tomography equipment and scan control method |
| CN113937761A (en) * | 2021-10-12 | 2022-01-14 | 江苏摩科特医疗科技有限公司 | Power supply device of CT scanner |
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Application publication date: 20120201 |