CN104023460A - High-voltage changeover switch for medical X-ray machine - Google Patents
High-voltage changeover switch for medical X-ray machine Download PDFInfo
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- CN104023460A CN104023460A CN201410116075.6A CN201410116075A CN104023460A CN 104023460 A CN104023460 A CN 104023460A CN 201410116075 A CN201410116075 A CN 201410116075A CN 104023460 A CN104023460 A CN 104023460A
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Abstract
The invention provides a high-voltage changeover switch for a medical X-ray machine, relates to a high-voltage changeover device, and is to provide the small-size, high-security, good-stability and low-cost high-voltage changeover switch for the medical X-ray machine. The high-voltage changeover switch for the medical X-ray machine comprises a machine frame, an electromagnet contactor, a changeover switch connecting rod and a voltage switching device. The electromagnet contactor comprises a contactor housing, electromagnets, a contact arm and a reset torsion spring, wherein the two electromagnets are placed inside the contactor housing; the contact arm is arranged between the electromagnets; and the left side of the contact arm is connected with the reset torsion spring, and the right side of the contact arm is equipped with the changeover switch connecting rod. The voltage switching device comprises a housing, a twisting arm, an installation shaft, a conductive spring piece and a conductive module. The upper end of the twisting arm is connected with the right end of the changeover switch connecting rod; the lower end of the twisting arm is arranged on the hosing through the installation shaft; the installation shaft is equipped with the conductive spring piece; the lower end of the housing is equipped with the conductive module; and the conductive module is provided with contacts and conductive bolts.
Description
Technical field
The present invention relates to a kind of high voltage switching device, particularly relate to a kind of high pressure for medical x-ray machine and switch lock.
Background technology
It is a difficult point that high pressure switches lock in medical x-ray machine technology always.Medical x-ray machine is under the effect of high field intensity, to form high-velocity electrons bombardment anode by high voltage being added in to x-ray pipe both sides, filament is dissociated the electronics, and produces bombardment ray.And high pressure switching lock drives the adhesive of contact to realize conducting High Pressure with electromagnet.There are the following problems for current switching lock:
1, adopt the mode by the straight line Attraction strap moving contact action of electromagnet, because the adhesive interval of electromagnet is limited, cause making the distance of the disconnection of contact to be restricted, make the insulation distance of contact not enough, between contact, produce sometimes electric discharge.
2, only have single contact, each electromagnet can only be controlled a switching lock and go work.Each fuel tank needs a plurality of switching locks. and the fault probability of each electromagnet is certain, and the number of electromagnet causes the probability of malfunction of medical x-ray machine also just larger accordingly more.This volume that changes at present lock is also relatively large simultaneously, and in order to guarantee enough insulation distances, the volume of equipment inevitably can increase.
3, switching at present the simple dependence physics mode of lock connects, without any detection method, action situation is judged, when switching lock when carrying out conducting or the action of disconnection, can not determine whether switch lock has effectively carried out action, if void is logical or empty breaking all can bring very large risk to equipment.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of volume is little, safe, good stability, a kind of high pressure for medical x-ray machine that cost is low switch lock.
A kind of high pressure for medical x-ray machine of the present invention switches lock, comprise frame, electromagnet contactor, switch brake connection rod and voltage switching device, wherein electromagnet contactor and voltage switching device are installed in frame, described electromagnet contactor comprises contactor housing, two blocks of electromagnet, contact arm and reduction torsion spring, described two blocks of electromagnet are placed on contactor enclosure interior side by side, between two blocks of electromagnet, contact arm is installed, turn round arm and be connected for one section of described contact arm left side and reduction torsion spring bottom, described reduction torsion spring is arranged on contactor housing left hand external, contact arm right side is connected with switching brake connection rod by connecting bolt, described voltage switching device comprises shell, twisting arm, installation shaft, conductive reed and conductive module, described twisting arm upper end is connected with switching brake connection rod right-hand member, twisting arm lower end is arranged on shell by installation shaft, the axle center of described installation shaft is positioned on the axis of shell, conductive reed is installed in installation shaft, outer casing underpart left and right is respectively provided with a conductive module, on described conductive module, be provided with contact, the described contact formation conductive path that contacts with conductive reed when the work, conducting bolt is also installed on described conductive module.
A kind of high pressure for medical x-ray machine of the present invention switches lock, wherein also be included in position detecting mechanism, describedly to position detecting mechanism, comprise data processing module and position transducer, described data processing module is positioned at contactor enclosure interior, described position transducer is positioned at contact arm and switches the top of brake connection rod junction, and position transducer is connected with data processing module.
A kind of high pressure for medical x-ray machine of the present invention switches lock, and wherein said contact lays respectively at the lower right corner of conductive module, left side and the lower left corner of right side conductive module.
A kind of high pressure for medical x-ray machine of the present invention switches lock, and wherein said conducting bolt is positioned at shell outside, for connecting external high pressure power supply.
A kind of high pressure for medical x-ray machine of the present invention switches lock, wherein said conductive reed, conducting bolt, conductive module are three groups, described three groups of conductive modules are arranged on outer casing underpart successively, and the upper end of the conductive reed corresponding with every group of conductive module is arranged in installation shaft successively.
X difference from prior art of the present invention is that a kind of high pressure for medical x-ray machine of the present invention switches lock and adopts double contact structure, and the effect of the first two playing, has reduced cost and also saved space.Switch brake connection rod and connect twisting arm and drive again conductive reed, the distance that makes insulation more greatly, more reliable.The electrode of two high pressure is divided and is opened in outer casing underpart both sides, make insulation distance larger, can effectively prevent two electric discharge phenomena between electrode, equipment performance is more reliable simultaneously.Whether high pressure switching lock moves and puts in place, and position sensor detects and output signal, thereby whether judgement switching lock is operated on normal state.
Below in conjunction with accompanying drawing, a kind of high pressure for medical x-ray machine of the present invention being switched to lock is described further.
Accompanying drawing explanation
Working state schematic representation when Fig. 1 is a kind of electromagnet power-off for medical x-ray machine of the present invention;
Working state schematic representation when Fig. 2 is a kind of energising of the electromagnet for medical x-ray machine of the present invention;
Fig. 3 is the upward view that a kind of high pressure for medical x-ray machine of the present invention switches lock;
Fig. 4 is the end view that a kind of high pressure for medical x-ray machine of the present invention switches lock voltage switching device.
Embodiment
As depicted in figs. 1 and 2, a kind of high pressure for medical x-ray machine of the present invention switches lock and comprises frame 15, electromagnet contactor, switching brake connection rod 2, voltage switching device and arrive position detecting mechanism, and wherein electromagnet contactor and voltage switching device are installed in frame 15.As shown in Figure 1, Figure 2 and Figure 3, electromagnet contactor comprises contactor housing 1, two electromagnet 4, contact arm 5 and reduction torsion springs 6.Two blocks of electromagnet 4 are placed on contactor housing 1 inside side by side, between two blocks of electromagnet 4, contact arm 5 are installed.Turn round arm for one section of contact arm 5 left sides and reduction torsion spring 6 bottoms and be connected, reduction torsion spring 6 is arranged on contactor housing 1 left hand external.Contact arm 5 right sides are connected with and are switched brake connection rod 2 by connecting bolt 16.To position detecting mechanism, comprise data processing module 12 and position transducer 13, wherein data processing module 12 is positioned at contactor housing 1 inside, and position transducer 13 is positioned at contact arm 5 and switches the top of brake connection rod 2 junctions.Position transducer 13 is connected with data processing module 12.As shown in Figure 1, Figure 2 and Figure 4, voltage switching device comprises shell 3, twisting arm 7, installation shaft 14, conductive reed 8 and conductive module 9.Twisting arm 7 upper ends are processed with rectangle slotted hole, switch brake connection rod 2 right-hand members and are connected with twisting arm 7 upper ends, and twisting arm 7 lower ends are arranged on shell 3 by installation shaft 14.Can external high voltage power supply on twisting arm 7, for providing high-tension electricity to device inside.When switching brake connection rod 2 moves left and right, twisting arm 7 upper ends are followed and are switched brake connection rod 2 swings, twist arm 7 lower ends simultaneously and can drive installation shaft 14 to rotate, and the axle center of installation shaft 14 is positioned on the axis of shell 3, conductive reed 8 is installed in installation shaft 14, and installation shaft 14 drives conductive reed 8 jointly to rotate.Shell 3 left and right, bottom are respectively provided with a conductive module 9, are provided with contact 10 on conductive module 9.The contact 10 formation conductive path that contacts with conductive reed 8 lower ends when working, contact 10 lays respectively at the lower right corner of conductive module 9, left side and the lower left corner of right side conductive module 9.Conducting bolt 11 is also installed on conductive module 9, and conducting bolt 11 is positioned at shell 3 outsides, for connecting external circuit, outwards powers.As shown in Figure 3 and Figure 4, the conductive reed 8 in the present embodiment, conducting bolt 11, conductive module 9 are three groups, and three groups of conductive modules 9 are arranged on shell 3 bottoms successively, and the upper end of the conductive reed 8 corresponding with every group of conductive module 9 is arranged in installation shaft 14 successively.
The operation principle that a kind of high pressure for medical x-ray machine of the present invention switches lock is as follows: when electromagnet 4 energising, as shown in Figure 2, connecting bolt 16 on contact arm 5 is subject to electromagnet 4 and attracts, contact arm 5, switching brake connection rod 2 and twisting arm 7 are positioned at left side station, reduction torsion spring 6 is in extended state, contact 10 on the conductive module 9 on conductive reed 8 and right side contacts, conducting right side path, and by the external high voltage source of twisting arm 7 to the right path power, the external circuit that voltage connects by conducting bolt 11 is exported; When electromagnet 4 power-off, as shown in Figure 1, reduction torsion spring 6 restores to the original state, contact arm 5, switching brake connection rod 2 and twisting arm 7 are positioned at right side station, contact 10 on the conductive module 9 in conductive reed 8 and left side contacts, conducting left side path, by the external high voltage source of twisting arm 7 to the left path power, the external circuit that voltage connects by conducting bolt 11 is exported.In addition, when electromagnet 4 power on/off states switch, the position of contact arm 5 each actions all can be detected by position transducer 13, and is sent to remote terminal after processing by data processing module 12, whether real-time watch device action puts in place, has guaranteed the stability of the operation of equipment.
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention, all should fall in the definite protection range of the claims in the present invention book.
Claims (5)
1. the high pressure for medical x-ray machine switches lock, it is characterized in that: comprise frame, electromagnet contactor, switch brake connection rod and voltage switching device, wherein electromagnet contactor and voltage switching device are installed in frame, described electromagnet contactor comprises contactor housing, two blocks of electromagnet, contact arm and reduction torsion spring, described two blocks of electromagnet are placed on contactor enclosure interior side by side, between two blocks of electromagnet, contact arm is installed, turn round arm and be connected for one section of described contact arm left side and reduction torsion spring bottom, described reduction torsion spring is arranged on contactor housing left hand external, contact arm right side is connected with switching brake connection rod by connecting bolt, described voltage switching device comprises shell, twisting arm, installation shaft, conductive reed and conductive module, described twisting arm upper end is connected with switching brake connection rod right-hand member, twisting arm lower end is arranged on shell by installation shaft, the axle center of described installation shaft is positioned on the axis of shell, conductive reed is installed in installation shaft, outer casing underpart left and right is respectively provided with a conductive module, on described conductive module, be provided with contact, the described contact formation conductive path that contacts with conductive reed when the work, conducting bolt is also installed on described conductive module.
2. a kind of high pressure for medical x-ray machine according to claim 1 switches lock, it is characterized in that: be also included in position detecting mechanism, describedly to position detecting mechanism, comprise data processing module and position transducer, described data processing module is positioned at contactor enclosure interior, described position transducer is positioned at contact arm and switches the top of brake connection rod junction, and position transducer is connected with data processing module.
3. a kind of high pressure for medical x-ray machine according to claim 1 switches lock, it is characterized in that: described contact lays respectively at the lower right corner of conductive module, left side and the lower left corner of right side conductive module.
4. a kind of high pressure for medical x-ray machine according to claim 1 switches lock, it is characterized in that: described conducting bolt is positioned at shell outside, for connecting external circuit, outwards powers.
5. according to a kind of high pressure for medical x-ray machine described in claim 1 or 3 or 4, switch lock, it is characterized in that: described conductive reed, conducting bolt, conductive module are three groups, described three groups of conductive modules are arranged on outer casing underpart successively, and the upper end of the conductive reed corresponding with every group of conductive module is arranged in installation shaft successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116075.6A CN104023460A (en) | 2014-03-26 | 2014-03-26 | High-voltage changeover switch for medical X-ray machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116075.6A CN104023460A (en) | 2014-03-26 | 2014-03-26 | High-voltage changeover switch for medical X-ray machine |
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| Publication Number | Publication Date |
|---|---|
| CN104023460A true CN104023460A (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410116075.6A Pending CN104023460A (en) | 2014-03-26 | 2014-03-26 | High-voltage changeover switch for medical X-ray machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2720605Y (en) * | 2004-08-20 | 2005-08-24 | 王凤池 | High-voltage electric-power change-over gate |
| CN101188900A (en) * | 2007-10-17 | 2008-05-28 | 廖云峰 | Medical diagnosis X radial high-frequency and high-voltage generator based on dual-bed and dual-tube |
| US20090245467A1 (en) * | 2008-03-26 | 2009-10-01 | Wilson Colin R | System and method of fast switching for spectral imaging |
| CN101754559A (en) * | 2008-12-12 | 2010-06-23 | 东软飞利浦医疗设备系统有限责任公司 | Dual-bulb tube high-voltage oil tank |
| WO2011117796A1 (en) * | 2010-03-24 | 2011-09-29 | Koninklijke Philips Electronics N.V. | Switching circuit for switching electric potentials |
-
2014
- 2014-03-26 CN CN201410116075.6A patent/CN104023460A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2720605Y (en) * | 2004-08-20 | 2005-08-24 | 王凤池 | High-voltage electric-power change-over gate |
| CN101188900A (en) * | 2007-10-17 | 2008-05-28 | 廖云峰 | Medical diagnosis X radial high-frequency and high-voltage generator based on dual-bed and dual-tube |
| US20090245467A1 (en) * | 2008-03-26 | 2009-10-01 | Wilson Colin R | System and method of fast switching for spectral imaging |
| CN101754559A (en) * | 2008-12-12 | 2010-06-23 | 东软飞利浦医疗设备系统有限责任公司 | Dual-bulb tube high-voltage oil tank |
| WO2011117796A1 (en) * | 2010-03-24 | 2011-09-29 | Koninklijke Philips Electronics N.V. | Switching circuit for switching electric potentials |
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Application publication date: 20140903 |