CN207133413U - A kind of magnetic resonance conductive plate - Google Patents
A kind of magnetic resonance conductive plate Download PDFInfo
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- CN207133413U CN207133413U CN201720704810.4U CN201720704810U CN207133413U CN 207133413 U CN207133413 U CN 207133413U CN 201720704810 U CN201720704810 U CN 201720704810U CN 207133413 U CN207133413 U CN 207133413U
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- filter
- conductive plate
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- gradient
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Abstract
It the utility model is related to a kind of magnetic resonance conductive plate, the conductive plate includes signal filtration module, power filtering module, gradient filtering module and accessory module, the signal filtration module, power filtering module, gradient filtering module and accessory module are independently arranged, the signal filtration module includes traffic filter, the power filtering module includes power-supply filter, and the gradient filtering module includes gradient filter；The traffic filter, power-supply filter and gradient filter are π type feed through system wave filters.The wave filter of the conductive plate uses feed through system structure, improves filtering performance, and wave filter quantity is few, simple in construction, so as to reduce the space-consuming of conductive plate, reduces production cost, more easy to install and maintenance.
Description
Technical field
It the utility model is related to medical treatment detection device technical field, more particularly to a kind of magnetic resonance conductive plate.
Background technology
Medical Devices superconduction type magnetic resonance device can produce magnetic field and the high-frequency electric field of high intensity in normal work, because
This screened room must possess good shield effectiveness.The place for being typically easy to occur electromagnetic field leakage be mainly door, return air inlet and
The larger place of conductive plate homalographic.Magnetic resonance conductive plate is used to connect screened room and equipment room cable, is provided with above a large amount of
Wave filter, for filtering off the interference in the external world, particularly high-frequency noise, while also prevent the radiofrequency signal of magnetic resonance to other electricity
Gas equipment impacts, therefore the shield effectiveness of magnetic resonance conductive plate is particularly important.
The conduction board size of current most magnetic resonance equipment is about 1600mm X 800mm, and material is 3mm plating
Zinc steel plate or copper coin, its volume and weight is all very big, and it is all and its inconvenient whether to transport or install.In addition, if pass
Guide plate installation is lack of standardization, because area is very big, then the phenomenon of leakage field easily occurs, and be not easy to be detected.Existing conduction
The wave filter set on plate can be divided mainly into gradient filter, power-supply filter and traffic filter, as shown in Figure 1, wherein,
Gradient filter shares 6 paths, and the electric current and voltage passed through is all very big, and its volume and weight is also very big, and installation is safeguarded not
It is convenient；Gradient filter is generally configured to passive low ventilating filter, is connected using inductance and electric capacity, for convenience of radiating, inside one
As filled with resin full, outside electric power cable must be wrapped with gauze screen, for separating the radiation interference in the external world.So
It is more complicated in technique and gauze screen needs particular design, and need good ground wire.Power-supply filter and signal filtering
Device is small by electric current, but quantity is a lot, is generally configured to circuit board form, can effectively increase port number, such circuit board is just
It must be wrapped with aluminium alloy or other metal shells, the connector used also requires it is with shield effectiveness, and such patches
Part is expensive, adds the cost of whole conductive plate.
It follows that existing magnetic resonance conduction plate bulk is big, weight is big, space-consuming is big, transportation, installation, maintenance are not
Convenient, wire harness number of cables is more, length length, and gradient filter volume and weight is big, and shield effectiveness needs with gauze screen and well
Ground connection ensure that complex manufacturing technology, cost is high；Power-supply filter and traffic filter quantity are more, using board design,
Shield effectiveness is difficult to ensure that connector is expensive, cost increase.
Utility model content
Technical problem to be solved in the utility model is, there is provided a kind of magnetic resonance conductive plate, the filter of the conductive plate
Ripple device uses feed through system structure, improves filtering performance, and wave filter quantity is few, simple in construction, so as to reduce conductive plate
Space-consuming, reduce production cost, more easy to install and maintenance.
A kind of magnetic resonance conductive plate, the conductive plate include signal filtration module, power filtering module, gradient filtering module
With accessory module, the signal filtration module, power filtering module, gradient filtering module and accessory module are independently set
Put,
Wherein, the signal filtration module is used for the weak electric signal for being filtered through conductive plate, and the power filtering module is used
In the power supply voltage signal for being filtered through conductive plate, the gradient filtering module is used for the big DC current for being filtered through conductive plate
Signal, the accessory module are used for the pipeline for connecting through conductive plate；
The signal filtration module includes multiple traffic filters, and the power filtering module includes multiple power filters
Device, the gradient filtering module include multiple gradient filters；The traffic filter, power-supply filter and gradient filter are equal
For π type feed through system wave filters.
Further, the port number of each power-supply filter and traffic filter is needed according to conductive plate
Filtering channel quantity selects the number of π type feed through system wave filters.
Further, the signal filtration module includes 3 traffic filters, and each traffic filter includes：19 core
Serial ports joint, 2 15 core serial ports joints, 1 25 core serial ports joint, share 63 paths numbers.
Further, the power filtering module includes 2 power-supply filters, and each power-supply filter includes 26 cores
Metal aviation plug, share 12 paths numbers.
Further, the gradient filtering module includes 6 gradient filters, and the gradient filter is cylindrical structure,
It is vertically mounted on conductive plate.
Further, the input/output terminal connection feedthrough capacitor of the gradient filter, input/output terminal are connected using screw rod
Connect, the screw jacket high-frequency magnetic, centre uses filling polyurethane.
Further, the accessory module connects including waveguide, radio frequency interface, video/audio interface, water pipe tracheae
Mouth and ground wire terminal.
Further, the traffic filter and power-supply filter are provided with stud, in the traffic filter and power supply
Stud is inserted in corresponding hole, is fixed with nut with setting corresponding hole on the contact surface of conductive plate by wave filter.
The utility model has clear advantage and beneficial effect compared with prior art.By above-mentioned technical proposal, sheet
A kind of magnetic resonance conductive plate of utility model can reach suitable technological progress and practicality, and with the extensive utilization in industry
Value, it at least has following advantages：
(1) conductive plate uses new π type feed through system wave filters so that conductive plate volume and weight substantially reduces, and takes
Space is small.
(2) wave filter uses feed through system structure, can effectively filter out High-frequency Interference, stable performance, filtering performance is good, without making
With shielded cable or gauze screen.
(3) conductive plate is few using wave filter quantity, simple in construction, installs and easy to maintenance, can substantially reduce production cost
And human cost.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, and in order to allow above and other purpose of the present utility model, feature
It can be become apparent with advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, described in detail as follows.
Brief description of the drawings
Fig. 1 is magnetic resonance conductive plate schematic diagram of the prior art；
Fig. 2 is the magnetic resonance conductive plate schematic diagram that the embodiment of the utility model one provides
Fig. 3 is the π type feed through system filter circuit configuration schematic diagrames in the embodiment of the utility model one；
Fig. 4 is the gradient filter and its mounting means schematic diagram that the embodiment of the utility model one provides；
Fig. 5 is traffic filter, the power-supply filter schematic diagram that the embodiment of the utility model one provides.
Description of reference numerals：
1- signal filtration module 2- power filtering module 3- gradient filtering modules
4- accessory module 5- gradient filter input 6- gradient filter output ends
7- conductive plate 8- stud 9- nuts
Embodiment
Further to illustrate that the utility model is to reach the technological means and effect that predetermined purpose of utility model taken,
Below in conjunction with accompanying drawing and preferred embodiment, to according to the utility model proposes a kind of magnetic resonance conductive plate embodiment
And its effect, describe in detail as after.
The utility model provides a kind of magnetic resonance conductive plate of small-sized high filtering performance, as shown in Figure 2, the conductive plate
Including signal filtration module 1, power filtering module 2, gradient filtering module 3 and accessory module 4, the signal filtration module
1st, power filtering module 2, gradient filtering module 3 and accessory module 4 are independently arranged.
Wherein, the signal filtration module 1 is used for the weak electric signal for being filtered through conductive plate, the power filtering module 2
For being filtered through the power supply voltage signal of conductive plate, the gradient filtering module 3 is used for the big direct current for being filtered through conductive plate
Current signal, the accessory module 4 are used for the pipeline for connecting through conductive plate.
The big DC current signal refers to current signal of the electric current in more than 300A.Magnetic resonance generally use gradient is amplified
Device, the signal of gradient amplifier output is DC current signal, and the DC current signal amplitude is generally larger, typically there is 300A
More than, usual voltage also has 1000V or so, therefore referred to as big DC current signal.
The signal filtration module 1 includes one or more traffic filters, and the power filtering module 2 includes one
Or multiple power-supply filters, the gradient filtering module 3 include one or more gradient filters；The traffic filter, electricity
Source filter and gradient filter are π types (CLC types) feed through system wave filter, as shown in Figure 3, π types (CLC types) feedthrough
Formula wave filter both ends use feedthrough capacitor, input and output end isolation, and are grounded with cage connection, and stray inductance is small, high frequency
When with very low impedance, can effectively suppress high frequency radiation interference；Used among π types (CLC types) the feed through system wave filter
High frequency nickel zinc magnet ring, the high frequency nickel zinc magnet ring magnetic conductivity is low, and very little, good heat dissipation, small volume, Neng Gouyou are lost under high frequency state
The suppression high-frequency conduction interference of effect, insertion loss of the frequency between 20MHz-200MHz can reach more than 100dB.
The port number of each power-supply filter and traffic filter is filtering channel number that is fixed, being needed according to conductive plate
Measure to select the number of π type feed through system wave filters, multiple wave filters are arranged on a conductive plate, filtering channel can be increased
Number.
In the present embodiment, conductive plate size is 800mm X 320mm, compared with prior art middle conductive plate 1600mm X
800mm size, conductive plate of the present utility model are obviously reduced.The signal filtration module includes 3 traffic filters, each
Traffic filter includes：19 core serial ports joint, 2 15 core serial ports joints, 1 25 core serial ports joint, share 63 paths
Number.The power filtering module can also preserved signal wave filter stand-by unit, the traffic filter stand-by unit can set
One or more traffic filters, the signal filtration module is set to increase the number of the signal filtration module according to real needs
Amount.
The power filtering module includes 2 power-supply filters, and each power-supply filter includes the metal aviation of 26 cores
Plug, share 12 paths numbers.The power filtering module can also reserve power-supply filter stand-by unit, the power-supply filter
Stand-by unit can set one or more power-supply filters, the power filtering module is increased the electricity according to real needs
The quantity of source filter.
The gradient filtering module includes 6 independently installed gradient filters.The gradient filter is in manufacture craft
On, using the form of screw rod intermediate sleeve high-frequency magnetic, as shown in accompanying drawing 3,4, the input and output end of the gradient filter
Feedthrough capacitor is connected, centre uses high heat conduction polyurethane filler.The rated current of the gradient filter is 400A and specified
Voltage is 1000VDC, and the gradient filter is cylindrical structure, a diameter of 40mm, length 100mm, 6 one group of right angle settings
On conductive plate, area occupied is 300mm X 50mm, and compared to the gradient filter of existing conductive plate, area occupied is significantly
Reduce；Because the input and output end of the gradient filter are isolation ground connection, the cable of connection is without using shielding line
Cable is wrapped up with gauze screen, can also suppress High-frequency Interference.
The accessory module includes radio frequency interface 18, waveguide interface tube 2, the tunnel of video/audio interface 6, water pipe gas
The road of pipe 4 and the tunnel of ground wire terminal 10.Wherein, the radio frequency interface includes Common radio frequency interface and high-power RF interface.Commonly penetrate
16, frequency interface, 2, high-power RF interface.
The traffic filter and power-supply filter can be provided with stud 8 in side, as shown in Figure 5, in the signal
Stud is inserted in corresponding hole with setting corresponding hole on the contact surface of conductive plate, uses nut by wave filter and power-supply filter
It is fixed.The traffic filter and power-supply filter have abandoned traditional use flange mounting means, using stud and nut
Coordinate the form of installation, can directly be vertically mounted on conductive plate, make conductive plate space compacter.The power-supply filter and
Traffic filter is without using the connector with shielding, conventional unmasked connector.The radio-frequency joint of accessory and
Water pipe head etc., directly punch, joint is screwed on, it is simple and easy.
The utility model embodiment conductive plate uses new π type feed through system wave filters so that the size of whole conductive plate
Size and weight all substantially reduce；When installation, due to small volume, it can be mounted directly to above the ceiling of screened room,
Occupy little space, it is exposed outside without substantial amounts of wire harness cable, it is overall clean and tidy.Wave filter uses feed through system structure, can be effective
High-frequency Interference is filtered out, stable performance, filtering performance is good, without using shielded cable or gauze screen.Conductive plate uses wave filter
Quantity is few, simple in construction, and gradient filter is more convenient for independently installed installation and maintenance, and a people can complete operation can be big
It is big to reduce production cost and human cost.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, although the utility model is disclosed above with preferred embodiment, but be not limited to the utility model, it is any ripe
Professional and technical personnel is known, is not being departed from the range of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as being without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made according to the technical essence of the utility model to above example, still
Belong in the range of technical solutions of the utility model.
Claims (8)
- A kind of 1. magnetic resonance conductive plate, it is characterised in that：The conductive plate includes signal filtration module, power filtering module, ladder Spend filtration module and accessory module, the signal filtration module, power filtering module, gradient filtering module and accessory Module is independently arranged,Wherein, the signal filtration module is used for the weak electric signal for being filtered through conductive plate, and the power filtering module was used for Filter is by the power supply voltage signal of conductive plate, big DC current letter of the gradient filtering module for being filtered through conductive plate Number, the accessory module is used for the pipeline for connecting through conductive plate；The signal filtration module includes traffic filter, and the power filtering module includes power-supply filter, the gradient filter Ripple module includes gradient filter；The traffic filter, power-supply filter and gradient filter are the filtering of π types feed through system Device.
- 2. magnetic resonance conductive plate according to claim 1, it is characterised in that：Each power-supply filter and traffic filter Port number is fixed, and the number of π type feed through system wave filters is selected according to the filtering channel quantity of conductive plate needs.
- 3. magnetic resonance conductive plate according to claim 1 or 2, it is characterised in that：The signal filtration module includes 3 letters Number wave filter, each traffic filter include：19 core serial ports joint, 2 15 core serial ports joints, 1 25 core serial ports joint, altogether There are 63 paths numbers.
- 4. magnetic resonance conductive plate according to claim 1 or 2, it is characterised in that：The power filtering module includes 2 electricity Source filter, each power-supply filter include the metal aviation plug of 26 cores, share 12 paths numbers.
- 5. magnetic resonance conductive plate according to claim 1 or 2, it is characterised in that：The gradient filtering module includes 6 ladders Wave filter is spent, the gradient filter is cylindrical structure, is vertically mounted on conductive plate.
- 6. magnetic resonance conductive plate according to claim 5, it is characterised in that：The input/output terminal of the gradient filter connects Feedthrough capacitor is connect, input/output terminal is connected using screw rod, and the screw jacket high-frequency magnetic, centre uses filling polyurethane.
- 7. magnetic resonance conductive plate according to claim 1 or 2, it is characterised in that：The accessory module includes waveguide Pipe, radio frequency interface, video/audio interface, water pipe air pipe interface and ground wire terminal.
- 8. magnetic resonance conductive plate according to claim 1 or 2, it is characterised in that：The traffic filter and power filter Device is provided with stud, corresponding hole is set on the contact surface of the traffic filter and power-supply filter with conductive plate, by spiral shell Post is inserted in corresponding hole, is fixed with nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704810.4U CN207133413U (en) | 2017-06-16 | 2017-06-16 | A kind of magnetic resonance conductive plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704810.4U CN207133413U (en) | 2017-06-16 | 2017-06-16 | A kind of magnetic resonance conductive plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207133413U true CN207133413U (en) | 2018-03-23 |
Family
ID=61632047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720704810.4U Expired - Fee Related CN207133413U (en) | 2017-06-16 | 2017-06-16 | A kind of magnetic resonance conductive plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207133413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143128A (en) * | 2017-06-16 | 2019-01-04 | Tcl医疗核磁技术（无锡）有限公司 | A kind of magnetic resonance conductive plate |
-
2017
- 2017-06-16 CN CN201720704810.4U patent/CN207133413U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143128A (en) * | 2017-06-16 | 2019-01-04 | Tcl医疗核磁技术（无锡）有限公司 | A kind of magnetic resonance conductive plate |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20200616 |