CN207382272U - A kind of servo-drive equipment junction filter - Google Patents
A kind of servo-drive equipment junction filter Download PDFInfo
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- CN207382272U CN207382272U CN201721910986.1U CN201721910986U CN207382272U CN 207382272 U CN207382272 U CN 207382272U CN 201721910986 U CN201721910986 U CN 201721910986U CN 207382272 U CN207382272 U CN 207382272U
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Abstract
The utility model discloses a kind of servo-drive equipment junction filters, it includes at least shield shell, it is characterized in that：Cover board is fixedly connected with by screw on two open ends above and below the shield shell, multiple independent shielding cavities are provided in shield shell, it is respectively arranged with a filter circuit in multiple independent shielding cavities, the frequecy characteristic of the filter circuit in each shielding cavity differs；Input/output interface is also respectively provided in one group of opposing sidewalls of shield shell, one end of multiple filter circuits is connected with the input port of shield shell, and the other end of multiple filter circuits is connected with the delivery outlet of shield shell.Input connector is vertical with mounting surface, mounting surface electrical connection is reliable, can avoid intercoupling between unlike signal, realize wave filter input, output shielding isolation, the electromagnetic interference on cable can effectively be inhibited, suitable for the filtering of the input terminal and output terminal of servo-drive equipment interface cable.
Description
Technical field
The utility model is related to a kind of wave filter, especially a kind of servo-drive equipment junction filter, suitable for inhibiting
The junction filter of servo-drive installation electromagnetical interference.
Background technology
Servo-drive equipment is most common a kind of equipment in modern communications radar, is usually used in the rotation of antenna, contains
Power, driving and control loop signal, frequency contain 50Hz AC powers, DC power supply, servo PWM modulation power letter
Number, the signal of the different transmission features such as network interface, serial ports.Signal between different frequency signals feature, which concentrates in together, often to be caused
Crosstalk between signal causes cable Conduction Interference to enhance, causes conduction and radiation interference exceeded.Single electromagnetic interface filter without
Method solves problems.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency provides a kind of servo-drive equipment junction filter, structure
Simply, it is easy to use.The servo-drive equipment junction filter is suitable for the input of servo-drive equipment, output cord such as power supply
The whole filtering of line, signal wire, it is possible to provide provide enough filtering measures to the signal of different frequency feature and shielding is isolated, greatly
It is big to reduce the electromagnetic compatibility excessive problem caused by cable.
Technical solution is used by the utility model solves its technical problem：A kind of servo-drive equipment combined filter
Device, it includes at least shield shell, it is characterized in that：Pass through screw above and below the shield shell on two open ends and fix company
Cover board is connected to, multiple independent shielding cavities are provided in shield shell, is respectively arranged in multiple independent shielding cavities
One filter circuit, the frequecy characteristic of the filter circuit in each shielding cavity differ；One group of opposing sidewalls of shield shell
On be also respectively provided with input/output interface, one end of multiple filter circuits is connected with the input port of shield shell,
The other end of multiple filter circuits is connected with the delivery outlet of shield shell.
The shielding cavity is 3, is cavity one, cavity two and cavity three respectively.
The cavity one, cavity two and cavity three are the rectangular enclosure body of arrangement parallel to each other, wherein cavity two and cavity
One in the horizontal direction parallel and adjacent to cavity three is vertically parallel with cavity one and is fixedly connected by adjusting screw, chamber
Body two is parallel with cavity three but does not contact, and wherein cavity three is identical with the thickness of cavity two with the overall thickness of cavity one, cavity three
The length of cavity two is respectively less than with the length of cavity one.
The filter circuit is differed according to frequecy characteristic is divided into 6 kinds, is respectively：Electric source filter circuit, RS232 filtered electricals
Road, servo PWM drive circuit, RS422 filter circuits, pulse signal filter circuit and switching signal filter circuit.
The electric source filter circuit, RS232 filter circuits, servo PWM drive circuit, RS422 filter circuits, pulse signal
Filter circuit and switching signal filter circuit are one or more dismountable integrated circuit modules.
The electric source filter circuit, RS232 filter circuits, servo PWM drive circuit, RS422 filter circuits, pulse letter
Number filter circuit and switching signal filter circuit are low-pass filter circuit and are the passive filterings of parallel relation.
The electric source filter circuit or RS232 filter circuits or servo PWM drive circuit or RS422 filter circuits or arteries and veins
Signal filter circuit or switching signal filter circuit is rushed to be set according to the working frequency of the frequecy characteristic combination transmission signal of itself
In different shielding cavities.
Input/output interface is also respectively provided in one group of opposing sidewalls of the shield shell, the input interface passes through
Washer is fixedly connected with adjusting screw there are two connector, and two connectors vertically form input shielding with mounting surface isolates,
The output interface, which is fixedly connected to form output there are two connecting screw and shield by washer, isolates.
The size of the cover board and the two of shield shell open ends match, and cover board is divided into whole cover board and combined cap
Plate, to be provided with installation convex stupefied for protrusion inwardly for the junction of four apex angles and each shielding cavity on the inside of the shield shell.
It is described entirety cover board by several be fixed on install it is convex it is stupefied on adjusting screw and shield shell a side opening
End face is fixedly connected, and the combination plate is made of L-type cover board and small rectangle cover board, the size and homonymy of medium and small rectangular cap plate
The open end of shielding cavity matches, L-type cover board and small rectangle cover board be fixed on by several install it is convex it is stupefied on tune
Section screw is fixedly connected with the opposite side open end of shield shell.
The beneficial effects of the utility model are that this servo-drive equipment junction filter is simple in structure, easy to use, are applicable in
In the electromagnetic interference for inhibiting servo-drive equipment, useful signal is allowed to pass through, is passed mainly between motor and control panel
All signals gone out carry out unified filtering, and wave filter includes at least shield shell and filter circuit, and shield shell is by multiple
The rectangular enclosure body that independent shielding cavity is formed passes through several on two opposite open ends of shield shell and adjusts spiral shell
Nail is fixedly connected with cover board, and the filtered electrical of several different frequency features is respectively disposed in each shielding cavity of shield shell
Road is also respectively provided with input/output interface, one end of the filter circuit and shielding in one group of opposing sidewalls of shield shell
The input port connection of housing, the other end of filter circuit are connected with the output terminal of shield shell, and input connector hangs down with mounting surface
Directly, mounting surface electrical connection is reliable, can avoid intercoupling between unlike signal, realize wave filter input, output shielding isolation,
The electromagnetic interference on cable can effectively be inhibited.Suitable for the filtering of the input terminal and output terminal of servo-drive equipment interface cable.
Description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, being said in being described below to embodiment needs
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Other attached drawings are obtained, wherein：
Fig. 1 is a kind of structure external form figure of the utility model, wherein, the when structure chart of Fig. 1 (a) not cover plates, Fig. 1 (b)
Fig. 1 (a) is turned to the structure diagram of 180 degree.
Fig. 2 is the circuit diagram of electric source filter circuit in the utility model.
Fig. 3 is the circuit diagram of RS232 filter circuits in the utility model.
Fig. 4 is the circuit diagram of servo PWM drive circuit in the utility model.
Fig. 5 is the circuit diagram of RS422 filter circuits in the utility model.
Fig. 6 is the circuit diagram of pulse signal filter circuit in the utility model.
Fig. 7 is the circuit diagram of switching signal filter circuit in the utility model.
In figure：1st, electric source filter circuit；2nd, RS232 filter circuits；3rd, servo PWM drive circuit；4th, RS422 filtered electricals
Road；5th, pulse signal filter circuit；6th, switching signal filter circuit；7th, cavity one；8th, cavity two；9th, cavity three；10th, connect
Device；11st, shield shell；12nd, cover board.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that described embodiment is only the part of the embodiment rather than whole of the utility model
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, shall fall within the protection scope of the present invention.
Embodiment 1
A kind of servo-drive equipment junction filter, it includes at least shield shell 11, it is characterized in that：The shield shell
Cover board 12 is fixedly connected with by screw on about 11 two open ends, multiple independent screens are provided in shield shell 11
Cavity is covered, is respectively arranged with a filter circuit in multiple independent shielding cavities, the filter circuit in each shielding cavity
Frequecy characteristic differ；Input/output interface is also respectively provided in one group of opposing sidewalls of shield shell 11, described is more
One end of a filter circuit is connected with the input port of shield shell, and the other end of multiple filter circuits is and shielding case
The delivery outlet connection of body 11.
The utility model is simple in structure, easy to use.The servo-drive equipment junction filter is set suitable for servo-drive
Standby input, the whole filtering of output cord such as power cord, signal wire, it is possible to provide enough to the signal offer of different frequency feature
Filtering measures and shielding isolation, substantially reduce the electromagnetic compatibility excessive problem caused by cable.Several filter circuits are flat
Row relation, without priority, each filter circuit is packed into according to frequency characteristic in different shielding cavity, is made between each filter circuit
Can complete independently filter function, while avoid intercoupling between unlike signal.The main function of the wave filter is will to disturb
Target signal filter allows useful signal to pass through, and unites primarily directed to all signals spread out of between motor and control panel
One filtering.Transmission signal enters from input port, and mounting surface is conductively connected reliably, realizes wave filter input, output shielding isolation,
Several filter circuits that signal passes through in each shielding cavity are filtered, and realize the inhibition to cable electromagnetic interference, while real
The shielding isolation features of existing unlike signal characteristic filtering circuit, finally spread out of from delivery outlet.
Embodiment 2
As shown in Fig. 1 (a) and Fig. 1 (b), it is improved on the basis of embodiment 1, and the shielding cavity is 3, point
It is not cavity 1, cavity 28 and cavity 39.
The cavity 1, cavity 28 and cavity 39 are the rectangular enclosure bodies of arrangement parallel to each other, wherein 28 He of cavity
Cavity 1 is in the horizontal direction parallel and adjacent to cavity 39 is vertically parallel with cavity 1 and is fixed by adjusting screw
Connection, cavity 28 is parallel with cavity 39 but does not contact, wherein the thickness of the overall thickness and cavity 28 of cavity 39 and cavity 1
Identical, the length of cavity 39 and cavity 1 is respectively less than the length of cavity 28.
The wave filter is isolated from structure divides chamber to be provided with cavity 1, cavity 28 and cavity 39, realize physical shielding and
Isolation, several filter circuits are respectively charged into according to frequency characteristic in cavity 1, cavity 28 and cavity 39, make each filtered electrical
Between road can complete independently filter function, while avoid intercoupling between unlike signal.
Embodiment 3
As shown in Figures 1 to 7, it is improved on the basis of embodiment 1, and the filter circuit uniformly filters out motor and control
Transmission signal between making sheet, the filter circuit is differed according to frequecy characteristic is divided into 6 kinds, is respectively：Electric source filter circuit
1st, RS232 filter circuits 2, servo PWM drive circuit 3, RS422 filter circuits 4, pulse signal filter circuit 5 and switching signal
Filter circuit 6.
The electric source filter circuit, RS232 filter circuits, servo PWM drive circuit, RS422 filter circuits, pulse signal
Filter circuit and switching signal filter circuit are one or more dismountable integrated circuit modules.
The electric source filter circuit 1, RS232 filter circuits 2, servo PWM drive circuit 3, RS422 filter circuits 4, arteries and veins
It rushes signal filter circuit 5 and switching signal filter circuit 6 is low-pass filter circuit and is the passive filtering of parallel relation.
The electric source filter circuit 1 or RS232 filter circuits 2 or servo PWM drive circuit 3 or RS422 filter circuits 4
Or pulse signal filter circuit 5 or switching signal filter circuit 6 are according to the work frequency of the frequecy characteristic combination transmission signal of itself
Rate is arranged in different shielding cavities.
Input/output interface is also respectively provided in one group of opposing sidewalls of the shield shell 11, the input interface leads to
It crosses washer to be fixedly connected with adjusting screw there are two connector 10, two connectors 10 vertically form input shielding with mounting surface
Isolation, the output interface, which is fixedly connected to be formed there are two connecting screw by washer, exports shielding isolation.
Electric source filter circuit 1, RS232 filter circuits 2, servo PWM drive circuit 3, RS422 filter circuits 4, pulse signal
Filter circuit 5 and switching signal filter circuit 6 are that the prior art is identical with filtering principle with the structure of existing filter circuit.
Electric source filter circuit 1, RS232 filter circuits 2, servo PWM drive circuit 3, RS422 filter circuits 4, pulse signal filter circuit
5th, switching signal filter circuit 6 is all the passive filtering of parallel relation, without priority.
Each filter circuit is packed into according to frequency characteristic in different shielding cavity, with reference to transmission signal working frequency to phase
The signal answered is filtered out, make between each filter circuit can complete independently filter function, while avoid the phase between unlike signal
Mutual coupling.The main function of servo-drive equipment junction filter is to filter out interference signal, and useful signal is allowed smoothly to lead to
It crosses, this wave filter is to carry out unified filtering, motor and control panel for all signals spread out of between motor and control panel
Between be that signal is transmitted by single line cable, this root cable include power supply, the driving of RS232, PWM motor, level signal,
Switching signal and RS422 signals, being transferred through wave filter can integrally filter out garbage, servo-drive equipment combination filter
A point chamber Isolated Shield, while input terminal add-in connectors 10 are taken in ripple device structure, by when being assembled in equipment, utilizing equipment
Structure realizes the input of wave filter, output isolation.
It is using the purpose that chamber is divided to isolate：Each signal working frequency of its own is different, level signal, switch
Signal, DC power supply are without frequency, and RS232 signals, RS422 signals are generally hundreds of kHz, and pwm signal is generally tens kHz, because
This each filter circuit must go to design for its signal working frequency, since the working frequency of these types of signal is different
, if filled in same cavity, the electromagnetic interference of the generation of unlike signal can be coupled by other filter circuits conduct it is low
It cannot filter in or equal to the frequency of signal, then the effect of wave filter just loses.
Embodiment 4
As shown in Figure 1, it is improved on the basis of embodiment 1, the size of the cover board 12 and the two of shield shell 11
A open end matches, and cover board 12 divides for whole cover board and combination plate, 11 apex angles of inside four of shield shell and each
The junction of shielding cavity inwardly protrusion be provided with installation it is convex stupefied.
It is described entirety cover board 12 by several be fixed on install it is convex it is stupefied on adjusting screw and shield shell 11 one side
Open end is fixedly connected, and the combination plate is made of L-type cover board and small rectangle cover board, the size of medium and small rectangular cap plate and
The open end of homonymy shielding cavity matches, L-type cover board and small rectangle cover board by several be fixed on installation it is convex it is stupefied on
Adjusting screw be fixedly connected with the opposite side open end of shield shell 11.
Cover board 12 is removably connected with by adjusting screw on one group of opposite flank of shield shell 11, facilitates filtered electrical
The wiring on road and flexible modulation arrangement, while can realize the isolation features of wave filter, it avoids mutually being concerned between each filtering signal
Disturb generation coupling.
It is to be appreciated that the directional instruction of institute in the utility model embodiment（Such as up, down, left, right, before and after ...）
It is only used for explaining in a certain particular pose（As shown in drawings）Under relative position relation, motion conditions between each component etc., such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description in " first ", " second " etc. involved in the utility model is only used for description purpose, and cannot manage
It solves to indicate or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Define as a result, " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".
In addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, and this technical side is will be understood that when the combination appearance of technical solution is conflicting or can not realize
The combination of case is not present, also not within the protection domain of the requires of the utility model.
Claims (10)
1. a kind of servo-drive equipment junction filter, it includes at least shield shell（11）, it is characterized in that：The shield shell
（11）Cover board is fixedly connected with by screw on upper and lower two open ends（12）, shield shell（11）It is inside provided with multiple only
Vertical shielding cavity, is respectively arranged with a filter circuit in multiple independent shielding cavities, the filter in each shielding cavity
The frequecy characteristic of wave circuit differs；Shield shell（11）One group of opposing sidewalls on be also respectively provided with input/output interface,
One end of multiple filter circuits is and shield shell（11）Input port connection, multiple filter circuits it is another
End is and shield shell（11）Delivery outlet connection.
2. a kind of servo-drive equipment junction filter according to claim 1, it is characterized in that：The shielding cavity is 3
It is a, it is cavity one respectively（7）, cavity two（8）With cavity three（9）Composition.
3. a kind of servo-drive equipment junction filter according to claim 2, it is characterized in that：The cavity one（7）, chamber
Body two（8）With cavity three（9）It is the rectangular enclosure body of arrangement parallel to each other, wherein cavity two（8）With cavity one（7）Along level side
To parallel and adjacent to cavity three（9）With cavity one（7）It is vertically parallel and be fixedly connected by adjusting screw, cavity two
（8）With cavity three（9）It is parallel but do not contact, wherein cavity three（9）With cavity one（7）Overall thickness and cavity two（8）Thickness
It is identical, cavity three（9）With cavity one（7）Length be respectively less than cavity two（8）Length.
4. a kind of servo-drive equipment junction filter according to claim 1, it is characterized in that：The filter circuit according to
Frequecy characteristic, which differs, is divided into 6 kinds, is respectively：Electric source filter circuit（1）, RS232 filter circuits（2）, servo PWM drive circuit
（3）, RS422 filter circuits（4）, pulse signal filter circuit（5）With switching signal filter circuit（6）.
5. a kind of servo-drive equipment junction filter according to claim 4, it is characterized in that：The electric source filter circuit
（1）, RS232 filter circuits（2）, servo PWM drive circuit（3）, RS422 filter circuits（4）, pulse signal filter circuit（5）
With switching signal filter circuit（6）It is one or more dismountable integrated circuit modules.
6. a kind of servo-drive equipment junction filter according to claim 5, it is characterized in that：The power filter electricity
Road（1）, RS232 filter circuits（2）, servo PWM drive circuit（3）, RS422 filter circuits（4）, pulse signal filter circuit
（5）With switching signal filter circuit（6）It is low-pass filter circuit and is the passive filtering of parallel relation.
7. a kind of servo-drive equipment junction filter according to claim 4 or 5, it is characterized in that：The power supply filter
Wave circuit（1）Or RS232 filter circuits（2）Or servo PWM drive circuit（3）Or RS422 filter circuits（4）Or pulse signal filter
Wave circuit（5）Or switching signal filter circuit（6）It is arranged on according to the working frequency of the frequecy characteristic combination transmission signal of itself
In different shielding cavities.
8. a kind of servo-drive equipment junction filter according to claim 1, it is characterized in that：The shield shell（11）
One group of opposing sidewalls on be also respectively provided with input/output interface, the input interface passes through washer and adjusting screw is fixed and connected
Connector there are two connecing（10）, two connectors（10）It vertically forms input shielding with mounting surface to isolate, the output interface
It is fixedly connected to form output there are two connecting screw and shield by washer and isolate.
9. a kind of servo-drive equipment junction filter according to claim 1, it is characterized in that：The cover board（12）It is big
Small and shield shell（11）Two open ends match, cover board（12）It is divided into whole cover board and combination plate, the shielding
Housing（11）The junction of the apex angle of inside four and each shielding cavity inwardly protrusion be provided with installation it is convex stupefied.
10. a kind of servo-drive equipment junction filter according to claim 9, it is characterized in that：The entirety cover board leads to
Cross several be fixed on install it is convex it is stupefied on adjusting screw and shield shell（11）One side open end be fixedly connected, described group
Closing lid plate is made of L-type cover board and small rectangle cover board, the size of medium and small rectangular cap plate and the open end of homonymy shielding cavity
Match, L-type cover board and small rectangle cover board be fixed on by several install it is convex it is stupefied on adjusting screw and shield shell
（11）Opposite side open end be fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721910986.1U CN207382272U (en) | 2017-12-30 | 2017-12-30 | A kind of servo-drive equipment junction filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721910986.1U CN207382272U (en) | 2017-12-30 | 2017-12-30 | A kind of servo-drive equipment junction filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207382272U true CN207382272U (en) | 2018-05-18 |
Family
ID=62333630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721910986.1U Active CN207382272U (en) | 2017-12-30 | 2017-12-30 | A kind of servo-drive equipment junction filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN207382272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113727593A (en) * | 2021-08-16 | 2021-11-30 | 北京超星未来科技有限公司 | Electromagnetic shielding device of electronic equipment and electronic equipment |
| CN116156860A (en) * | 2023-02-22 | 2023-05-23 | 北京航天发射技术研究所 | Electromagnetic compatibility optimization method for synchronous servo controller of electrically-driven special vehicle |
-
2017
- 2017-12-30 CN CN201721910986.1U patent/CN207382272U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113727593A (en) * | 2021-08-16 | 2021-11-30 | 北京超星未来科技有限公司 | Electromagnetic shielding device of electronic equipment and electronic equipment |
| CN116156860A (en) * | 2023-02-22 | 2023-05-23 | 北京航天发射技术研究所 | Electromagnetic compatibility optimization method for synchronous servo controller of electrically-driven special vehicle |
| CN116156860B (en) * | 2023-02-22 | 2024-03-08 | 北京航天发射技术研究所 | Electromagnetic compatibility optimization method for synchronous servo controller of electrically-driven special vehicle |
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