CN106209000A - A kind of filtering unit - Google Patents
A kind of filtering unit Download PDFInfo
- Publication number
- CN106209000A CN106209000A CN201610699943.7A CN201610699943A CN106209000A CN 106209000 A CN106209000 A CN 106209000A CN 201610699943 A CN201610699943 A CN 201610699943A CN 106209000 A CN106209000 A CN 106209000A
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- lead
- wire
- electric capacity
- filter circuit
- signal
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/004—Capacitive coupling circuits not otherwise provided for
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
- H03H2001/0021—Constructional details
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a kind of filtering unit, including the housing with chamber, the top of housing is hatch frame, and the outer surface of the sidewall relative with hatch frame is sequentially provided with the first adapter, the second adapter, the 3rd adapter, the 4th adapter, the 5th adapter, the 6th adapter and the 7th adapter；The chamber of housing forms power filter chamber and signal filtering chamber by dividing plate；Power filter chamber arranges the electric source filter circuit plate being integrated with electric source filter circuit；Signal filtering chamber arranges signal filter circuit plate, dividing plate be arranged right below base, signal filtering chamber is provided with earthing rod near base position, the bottom of dividing plate is provided with connection sheet, connects sheet and is connected with earthing rod；The outer surface of the sidewall installing adapter is provided with conductive structure.The invention enables existing vehicle commander's terminal to meet in GJB and conduct the relevant EMC Requirements such as CE102 and radiation RE102.
Description
Technical field
The present invention relates to wave filter technology field, a kind of filtering unit for vehicle commander's terminal.
Background technology
Vehicle commander's terminal is widely used for the control command system on various equipment, according to the Electro Magnetic Compatibility of vehicle commander's terminal
Testing result shows, wherein the testing result of vehicle commander's terminal Electro Magnetic Compatibility such as CE102 and RE102 index is unsatisfactory for relevant electromagnetism
Compatibility requirements；CE102 (10KHz-10MHz power line conducted emission) is unsatisfactory for requirement and refers to detected equipment input power cord
Conducted emission on (the including loop line) Electromagnetic Launching that CE102 project specifies in assigned frequency is unsatisfactory for GJB and sensitivity are wanted
Ask；RE102 (transmitting of 10KHz-18GHz electric field radiation) is unsatisfactory for requiring to refer to equipment under test and about electric wire, the electricity of cable
The Flied emission Electromagnetic Launching that CE102 project specifies in assigned frequency is unsatisfactory for GJB and sensitivity requirement；Vehicle commander's terminal is caused to be transported
Row stablize poor, information transmission poor accuracy and the safety of equipment can be caused serious impact；It addition, vehicle commander's terminal
In not only need to input vehicle commander's terminal power supply be filtered, in addition it is also necessary to multiple signals are filtered, in prior art all
It is power supply and multiple signal to be separately designed independent filtering unit filter respectively, does not the most only result in installation filtering unit
Bothering very much, and in the vehicle commander's terminal having, the position of reserved installation filtering unit is limited, causing cannot be to multiple filtering unit
Assemble；And multiple filtering unit is installed, contacts bad between filtering unit with vehicle commander's terminal installed surface, cause filtering group
The filter effect of part is poor, not only can not meet vehicle commander's terminal supplying power input filter and signal input filter, can't ensure vehicle commander
Terminal input, the requirement of output port electromagnetic compatibility.Add the shield effectiveness difference of present filtering unit and multiple filter is installed
Ripple assembly, the electronic equipment of vehicle commander's terminal inner can be impacted by the radiation causing filtering unit to produce, and also can be to whole
Safety and the disguise of individual vehicle commander's terminal cause and have a strong impact on.
Summary of the invention
For the problems referred to above of the prior art, the present invention proposes a kind of filtering unit, and the present invention solves existing
The Electro Magnetic Compatibility of vehicle commander's terminal is poor, is unsatisfactory in relevant EMC Requirements the regulations such as CE102 and RE102, and existing
The technical problems such as the integrated level of filtering unit is little, filter effect is unstable.
The technical scheme is that a kind of filtering unit, including the housing with chamber, the top of described housing is for opening
Mouth structure, is provided with dismountable cover plate at described hatch frame, described cover plate is provided with for the threading opening through lead-in wire, and opens
The first adapter (X1), the second adapter (X2), the 3rd adapter it is sequentially provided with on the outer surface of the sidewall that mouth structure is relative
(X3), the 4th adapter (X4), the 5th adapter (X5), the 6th adapter (X6) and the 7th adapter (X7)；The chamber of housing
Forming power filter chamber and signal filtering chamber by dividing plate, the first adapter (X1) is positioned at the outside of power filter chamber
Wall；Described power filter chamber arranges electric source filter circuit plate, electric source filter circuit plate is integrated with electric source filter circuit, electricity
The input of power filter and the contact pin of the first adapter (X1) connect, and the outfan of electric source filter circuit is provided with lead-in wire；Institute
State and signal filtering chamber arranges signal filter circuit plate, described signal filter circuit plate is integrated with signal filter circuit；Institute
State the second adapter (X2), the 3rd adapter (X3), the 4th adapter (X4), the 5th adapter (X5), the 6th adapter (X6)
And the contact pin that the 7th in adapter (X7) is connected with the signal input part of signal filter circuit, the signal output of signal filter circuit
Lead-in wire is set on end；Described dividing plate be arranged right below base, dividing plate is provided with the fixing hole for installing feedthrough capacitor, described
Being provided with earthing rod near base position in signal filtering chamber, the bottom of described dividing plate is provided with connection sheet, described connection sheet and ground connection
Post connects；The outer surface of the sidewall installing adapter is provided with conductive structure.
Further, described first adapter (X1) includes 12 contact pins, and described electric source filter circuit includes the first common mode
Inductance (L1), the second common mode inductance (L2), the 30th to the 39th electric capacity (C30～C39), the 40th polar capacitor (C40),
First feedthrough capacitor (CY1-1), the second feedthrough capacitor (CY1-2), the 3rd feedthrough capacitor (CY3) and the 4th feedthrough capacitor (CY4),
First common mode inductance includes the first inductance (L1-1) and the second inductance (L1-2), and the second common mode inductance includes the 3rd inductance (L2-1)
With the 4th inductance (L2-2)；The input of described electric source filter circuit includes inputting positive pole and input negative pole, described input positive pole
Being connected with the 1-6 contact pin of the first adapter (X1), the 7-12 contact pin of input negative pole and the first adapter (X1) is connected；Described
The outfan of electric source filter circuit includes output cathode and output negative pole, and the outfan of described electric source filter circuit is provided with 12
Root goes between, and wherein No. 1-6 lead-in wire is output cathode, and No. 7-12 lead-in wire is output negative pole；The output of described first inductance (L1-1)
End is connected with the positive pole of the outfan of electric source filter circuit by the 3rd inductance (L2-1), the output of described second inductance (L1-2)
End is connected with the negative pole of the outfan of electric source filter circuit by the 4th inductance (L2-2)；First inductance (L1-1) and the second inductance
(L1-2) input is respectively through the 31st electric capacity (C31) and the 32nd electric capacity (C32) ground connection, the 30th electric capacity
(C30), it is connected across the first inductance (L1-1) and the second inductance after the 33rd electric capacity (C33), the 34th electric capacity (C34) parallel connection
(L1-2) between input；The outfan of described first inductance (L1-1) and the second inductance (L1-2) is respectively through the 36th
Electric capacity (C36) and the 37th electric capacity (C37) ground connection, the 35th electric capacity (C35) is connected across the first inductance (L1-1) and second
Between the outfan of inductance (L1-2)；38th electric capacity (C38), the 39th electric capacity (C39) and the 40th polar capacitor
(C40) being connected across after parallel connection between the 3rd inductance (L2-1) and the outfan of the 4th inductance (L2-2), the 3rd inductance (L2-1) is defeated
Go out end to be connected with the input of the first feedthrough capacitor (CY1-1), the outfan of the first feedthrough capacitor (CY1-1) and No. 1 lead-in wire and 2
Number lead-in wire be connected；The input of the 4th inductance (L2-2) outfan and the second feedthrough capacitor (CY1-2) connects, the second feedthrough capacitor
(CY1-2) outfan and No. 7 and No. 8 lead-in wires are connected；The input of the first inductance (L1-1) and the 3rd feedthrough capacitor (CY3)
Input connects, and the outfan of the 3rd feedthrough capacitor (CY3) is connected with No. 3-6 lead-in wire；The input of described second inductance (L1-2)
End is connected with the input of the 4th feedthrough capacitor (CY4), and the outfan of the 4th feedthrough capacitor (CY4) is connected with No. 9-12 lead-in wire；
Outside the ground connection of the first feedthrough capacitor (CY1-1), the second feedthrough capacitor (CY1-2), the 3rd electric capacity (CY3) and the 4th electric capacity (CY4)
Shell is all by dividing plate ground connection.
Further, described signal filter circuit include CAN signal filter circuit, first network signal filter circuit,
Two network signal filter circuits, RS422 signal filter circuit, a RS232 signal filter circuit and the 2nd RS232 signal filtering
Circuit.
Further, described second adapter (X2) includes 6 be connected with the signal input part of CAN signal filter circuit
Contact pin, the signal output part of CAN signal filter circuit be provided with connect one to one with 6 contact pins respectively CAN_H lead-in wire,
CAN_L lead-in wire, CAN_GND lead-in wire, GPI1 ISO lead-in wire, GPI2 ISO lead-in wire and GND GPI0 lead-in wire；CAN_H lead-in wire is by the
27 electric capacity (C27) ground connection, CAN_L lead-in wire is gone between by the 20th by the end 29 electric capacity (C29) ground connection, CAN_GND
Eight electric capacity (C28) ground connection, GPI1 ISO lead-in wire is gone between by the 20th by the 26th electric capacity (C26) ground connection, GPI2 ISO
Five electric capacity (C25) ground connection, GND GPI0 goes between by the 24th electric capacity (C24) ground connection.
Further, described 4th adapter (X3) includes being connected with the signal input part of first network signal filter circuit
12 contact pins, the signal output part of first network signal filter circuit is provided with the TX+ connected one to one with 12 contact pins
Lead-in wire 1, TX-lead-in wire 1, RX+ signal 1, BI-D3+ lead-in wire 1, BI-D3-lead-in wire 1, RX-lead-in wire 1, BI-D4+ lead-in wire 1, BI-D4-draw
Line the 1, first+26V lead-in wire the 1, second+26V lead-in wire the 1, the oneth 26VGND lead-in wire 1 and the 2nd 26VGND lead-in wire 1；First+26V lead-in wire
1, the second+26V lead-in wire the 1, the oneth 26VGND lead-in wire 1 and the 2nd 26VGND lead-in wire 1 respectively by with the 20th electric capacity (C20), the
21 electric capacity (C21), the 22nd electric capacity (C22) and the 23rd electric capacity (C23) ground connection.
Further, described 3rd adapter (X4) includes being connected with the signal input part of the second network signal filter circuit
12 contact pins, the signal output part of the second network signal filter circuit is provided with the TX+ connected one to one with 12 contact pins
Lead-in wire 2, TX-lead-in wire 2, RX+ signal 2, BI-D3+ lead-in wire 2, BI-D3-lead-in wire 2, RX-lead-in wire 2, BI-D4+ lead-in wire 2, BI-D4-draw
Line the 2, first+26V lead-in wire the 2, second+26V lead-in wire the 2, the oneth 26VGND lead-in wire 2 and the 2nd 26VGND lead-in wire 2；First+26V lead-in wire
2, second+26V lead-in wire the 2, the oneth 26VGND lead-in wire 2 and the 2nd 26VGND lead-in wire 2 respectively by the 16th electric capacity (C16), the tenth
Seven electric capacity (C17), the 18th electric capacity (C18) and the 19th electric capacity (C19) ground connection.
Further, described 5th adapter (X5) includes 5 be connected with the signal input part of RS422 signal filter circuit
Root contact pin, the signal output part of RS422 signal filter circuit be provided with connect one to one with 5 contact pins TXD+ lead-in wire,
TXD-lead-in wire, RXD+ lead-in wire, RXD-lead-in wire and GND lead-in wire, TXD+ lead-in wire, TXD-lead-in wire, RXD+ lead-in wire, RXD-lead-in wire and GND
Lead-in wire respectively by the 12nd electric capacity (C12), the 14th electric capacity (C14), the 13rd electric capacity (C13), the 11st electric capacity (C11) and
15th electric capacity (C15)
Ground connection.
Further, described 6th adapter (X6) includes that the signal input part with a RS232 signal filter circuit is even
5 contact pins connect, the signal output part of a RS232 signal filter circuit is provided with the TXD connected one to one with 5 contact pins
Lead-in wire 1, RXD lead-in wire 1, GND lead-in wire 1, CTS lead-in wire 1 and RTS lead-in wire 1；TXD lead-in wire 1, RXD lead-in wire 1, GND lead-in wire 1, CTS lead-in wire
1 and RTS lead-in wire 1 is respectively by the 8th electric capacity (C8), the tenth electric capacity (C10), the 9th electric capacity (C9), the 7th electric capacity (C7) and the 6th
Electric capacity (C6) ground connection.
Further, described 7th adapter (X7) includes that the signal input part with the 2nd RS232 signal filter circuit is even
5 contact pins connect, the signal output part of the 2nd RS232 signal filter circuit is provided with the TXD connected one to one with 5 contact pins
Lead-in wire 2, RXD lead-in wire 2, GND lead-in wire 2, CTS lead-in wire 2 and RTS lead-in wire 2；TXD lead-in wire 2, RXD lead-in wire 2, GND lead-in wire 2, CTS lead-in wire
2 and RTS lead-in wires 2 are respectively by the 3rd electric capacity (C3), the 4th electric capacity (C4), the 5th electric capacity (C5), the first electric capacity (C1) and second
Electric capacity (C2) ground connection.
Further, described threading opening is two, and two threading openings are the most just to signal filtering chamber, and the top of capping sets
Having two insulators, two insulators cover on two threading openings respectively, and the sidewall of described insulator had line mouth.
Compared with prior art, the invention has the beneficial effects as follows:
1. the chamber of whole housing is divided into the power filter chamber being provided with electric source filter circuit plate by the present invention by dividing plate
Room and the signal filtering chamber being provided with signal filter circuit plate, by the power filter electricity being integrated on electric source filter circuit plate
Power supply and the signal of vehicle commander's terminal are filtered by road and the multiple signal filter circuits being integrated on signal filter circuit plate respectively
Ripple processes so that the power supply and the signal that enter vehicle commander's terminal all meet CE102 and RE102 index in relevant EMC Requirements
Regulation, then is shielded power filter and signal filtering by dividing plate, it is to avoid power line and holding wire, electric source filter circuit and
Signal filter circuit causes and interferes, and while ensureing the filter effect that filtering unit is good, also achieves multiple filtering
Circuit highly integrated so that the installation of filtering unit, safeguard and use convenient.
2. the first feedthrough capacitor, the second feedthrough capacitor, the 3rd feedthrough capacitor and the 4th feedthrough capacitor are arranged on by the present invention
On dividing plate, decrease four feedthrough capacitors of installation in housing cavity so that in whole filtering unit, the integrated level of circuit is high, and
And the feedthrough capacitor being arranged on dividing plate is grounded by the connection sheet bottom dividing plate and earthing rod, this ensure that punching electricity
Hold be always maintained at connecing during using and moving state, it is to avoid there is loosening situation ground connection at, it addition, be also convenient for electricity
In source filtering chamber, output lead passes from threading opening, this avoid and opens threading on the cover plate above power filter chamber
Mouthful, this avoid the many power lines of frequency spectrum and electric source filter circuit and the internal unit of signal filtering part and vehicle commander's terminal is produced
Raw interference, it also avoid filtering unit and produces bigger radiation, thus prevent the interference of power supply signal from causing other equipment
Performance reduces, and even cannot work.
3. the present invention is by installing conductive structure on the surface of filtering unit, and conductive structure is conducting foam, so makes
Obtain filtering unit to be arranged in vehicle commander's terminal, increase contact area between filtering unit and vehicle commander's terminal installed surface so that filter
Ripple assembly can keep good contacting with vehicle commander's terminal so that the good wave filtering effect of filtering unit, it is ensured that vehicle commander's terminal supplying power
The Electro Magnetic Compatibility good with signal input part and outfan, it is ensured that it is accurate that the properly functioning and signal of vehicle commander's terminal transmits
Property.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural representation of middle shell of the present invention.
Fig. 4 is the circuit diagram of power filter part in the present invention.
Fig. 5 is the circuit diagram of signal filtering part in the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the technical scheme in the present invention is further illustrated by embodiment.
Referring to the drawings 1,2,3, the present invention includes the housing 1 with chamber, and the top of housing 1 is hatch frame, and opening is tied
Being provided with dismountable capping 9 at structure, capping 9 is provided with for the threading opening through lead-in wire 8, so facilitates the installation of circuit board,
Assemble filtering unit simple to operate, packaging efficiency is high；It is sequentially provided with first on the outer surface of the sidewall relative with hatch frame
Adapter (X1), the second adapter (X2), the 3rd adapter (X3), the 4th adapter (X4), the 5th adapter (X5), the 6th company
Connecing device (X6) and the 7th adapter (X7), adapter is respectively used to and power supply and the connection of multiple signal transmssion line, and by electricity
Source and signal are transferred on corresponding filter circuit filter respectively, it is to avoid cause mutual doing between power supply and multiple signal
Disturb；The chamber of housing 1 forms power filter chamber 4 and signal filtering chamber 5, the most not only by power filter portion by dividing plate 3
Divide and signal filtering is partially integrated in a housing 1, make again power filter part and signal filtering part divide by dividing plate 3
Do not carry out independent filtering, it is ensured that the filtering performance that filtering unit is good so that vehicle commander's terminal has good Electro Magnetic Compatibility；The
A connector (X1) is positioned at the lateral wall of power filter chamber 4；Power filter chamber 4 arranges electric source filter circuit plate, power supply
Being integrated with electric source filter circuit in filter circuit plate, the input of electric source filter circuit and the contact pin of the first adapter (X1) are even
Connecing, the outfan of electric source filter circuit is provided with lead-in wire, and lead-in wire connects for the power supply input adapter with vehicle commander's terminal；Signal filtering
Chamber 5 arranges signal filter circuit plate, signal filter circuit plate is integrated with signal filter circuit, the second adapter (X2),
In 3rd adapter (X3), the 4th adapter (X4), the 5th adapter (X5), the 6th adapter (X6) and the 7th adapter (X7)
Contact pin be connected with the signal input part of signal filter circuit, the signal output part of signal filter circuit arranges lead-in wire, lead-in wire
Connect with corresponding signal input connector in vehicle commander's terminal respectively；Dividing plate 3 be arranged right below base, dividing plate 3 be provided with for
Installing the fixing hole of feedthrough capacitor, be provided with earthing rod 6 near base position in signal filtering chamber 5, the bottom of dividing plate 3 is provided with connection
Sheet 7, connects sheet 7 and is connected with earthing rod 6；Dividing plate 3 is fixed on base by connecting the cooperation of sheet 7 and earthing rod 6, so arranges
It is good and after threading opening, the lead-in wire of power pack is fixed on base again that dividing plate 3 makes to install feedthrough capacitor on dividing plate 3
On so that it is more convenient for assembling circuit at housing 1, and makes the integrated level height of filtering unit, and the space taken is few；
The outer surface of the sidewall installing adapter is provided with conductive structure 10, and conductive structure 10 is conducting foam, so makes filtering group
Part is arranged in vehicle commander's terminal, increases contact area between filtering unit and vehicle commander's terminal installed surface so that filtering unit energy
Enough keep good contacting with vehicle commander's terminal so that the good wave filtering effect of filtering unit, it is ensured that vehicle commander's terminal supplying power and signal are defeated
Enter the Electro Magnetic Compatibility that end is good with outfan, it is ensured that the accuracy of the properly functioning and signal transmission of vehicle commander's terminal.
Referring to the drawings 4, the first adapter (X1) includes 12 contact pins, and electric source filter circuit includes the first common mode inductance
(L1), the second common mode inductance (L2), the 30th to the 39th electric capacity (C30～C39), the 40th polar capacitor (C40), first
Feedthrough capacitor (CY1-1), the second feedthrough capacitor (CY1-2), the 3rd feedthrough capacitor (CY3) and the 4th feedthrough capacitor (CY4), first
Common mode inductance includes the first inductance (L1-1) and the second inductance (L1-2), and the second common mode inductance includes the 3rd inductance (L2-1) and
Four inductance (L2-2)；The input of electric source filter circuit includes inputting positive pole and input negative pole, input positive pole and the first adapter
(X1) 1-6 contact pin is connected, and the 7-12 contact pin of input negative pole and the first adapter (X1) is connected；Electric source filter circuit defeated
Go out end and include output cathode and output negative pole, and the outfan of electric source filter circuit is provided with 12 lead-in wires, wherein No. 1-6 lead-in wire
For output cathode, No. 7-12 lead-in wire is output negative pole；1-6 contact pin is used for being connected with the positive pole of DC supply input, 7-12
Number contact pin is for being connected with the negative pole of DC supply input；The outfan of the first inductance (L1-1) passes through the 3rd inductance (L2-1)
Be connected with the positive pole of the outfan of electric source filter circuit plate, the outfan of the second inductance (L1-2) by the 4th inductance (L2-2) with
The negative pole of the outfan of electric source filter circuit plate connects；The input warp respectively of the first inductance (L1-1) and the second inductance (L1-2)
Cross the 31st electric capacity (C31) and the 32nd electric capacity (C32) ground connection, for being carried out tentatively by the common mode interference signal in power supply
Leach；It is connected across the first inductance after 30th electric capacity (C30), the 33rd electric capacity (C33), the 34th electric capacity (C34) parallel connection
(L1-1) between the input of and the second inductance (L1-2), for the differential mode interference signal in power supply is leached；First electricity
The outfan of sense (L1-1) and the second inductance (L1-2) is respectively through the 36th electric capacity (C36) and the 37th electric capacity (C37)
Ground connection, leaches again to common mode interference signal remaining in power supply, and the 35th electric capacity (C35) is connected across the first inductance
(L1-1) between the outfan of and the second inductance (L1-2)；Differential mode interference signal remaining in power supply is leached again, the
It is connected across the 3rd inductance after 38 electric capacity (C38), the 39th electric capacity (C39) and the 40th polar capacitor (C40) parallel connection
(L2-1) and between the outfan of the 4th inductance (L2-2), the 3rd inductance (L2-1) outfan and the first feedthrough capacitor (CY1-1)
Input connect, the outfan of the first feedthrough capacitor (CY1-1) and No. 1 and No. 2 lead-in wire be connected, No. 1 and No. 2 go between be used for
The positive pole of vehicle commander's Terminal Equipment Power input connects；4th inductance (L2-2) outfan and the second feedthrough capacitor (CY1-2)
Input connects, and the outfan of the second feedthrough capacitor (CY1-2) and No. 7 and No. 8 lead-in wires are connected；These No. 7 and No. 8 lead-in wire for
The negative pole of vehicle commander's Terminal Equipment Power input connects；The input of the first inductance (L1-1) and the 3rd feedthrough capacitor (CY3)
Input connects, and the outfan of the 3rd feedthrough capacitor (CY3) is connected with No. 3-6 lead-in wire；Wherein No. 4-6 lead-in wire is for vehicle commander eventually
The positive pole of three heating film power inputs in end connects respectively, and No. 3 lead-in wires are for electric with the voice terminal in vehicle commander's terminal
The positive pole of source input connects；The input of the second inductance (L1-2) and the input of the 4th feedthrough capacitor (CY4) connect, and the 4th
The outfan of feedthrough capacitor (CY4) is connected with No. 9-12 lead-in wire；Wherein No. 10-12 lead-in wire and three heating film power inputs
Negative pole connects respectively, and No. 9 lead-in wires are for being connected with the negative pole of the voice terminal power input in vehicle commander's terminal；First punching electricity
Hold (CY1-1), the second feedthrough capacitor (CY1-2), the 3rd electric capacity (CY3) and the 4th electric capacity (CY4) grounding shell all by every
Plate earthing.
Signal filter circuit includes CAN signal filter circuit, first network signal filter circuit, the second network signal filtering
Circuit, RS422 signal filter circuit, a RS232 signal filter circuit and the 2nd RS232 signal filter circuit.
Referring to the drawings 5, the second adapter (X2) includes 6 be connected with the signal input part of CAN signal filter circuit and inserts
Pin, the signal output part of CAN signal filter circuit is provided with CAN_H lead-in wire, the CAN_ connected one to one respectively with 6 contact pins
L lead-in wire, CAN_GND lead-in wire, GPI1 ISO lead-in wire, GPI2 ISO lead-in wire and GND GPI0 lead-in wire；CAN_H goes between by the 20th
Seven electric capacity (C27) ground connection, CAN_L lead-in wire is by the end 29 electric capacity (C29) ground connection, and CAN_GND lead-in wire is by the 28th electricity
Holding (C28) ground connection, GPI1 ISO lead-in wire is by the 26th electric capacity (C26) ground connection, and GPI2 ISO lead-in wire is by the 25th electricity
Holding (C25) ground connection, GND GPI0 goes between by the 24th electric capacity (C24) ground connection, will enter in the CAN signal of vehicle commander's terminal
And disturb signal to leach.
Referring to the drawings 5, the 4th adapter (X3) includes being connected with the signal input part of first network signal filter circuit
12 contact pins, the signal output part of first network signal filter circuit is provided with the TX+ connected one to one with 12 contact pins and draws
Line 1, TX-lead-in wire 1, RX+ signal 1, BI-D3+ lead-in wire 1, BI-D3-lead-in wire 1, RX-lead-in wire 1, BI-D4+ lead-in wire 1, BI-D4-lead-in wire
1, first+26V lead-in wire the 1, second+26V lead-in wire the 1, the oneth 26VGND lead-in wire 1 and the 2nd 26VGND lead-in wire 1；First+26V lead-in wire 1,
Second+26V lead-in wire the 1, the oneth 26VGND lead-in wire 1 and the 2nd 26VGND lead-in wire 1 respectively by with the 20th electric capacity (C20), second
11 electric capacity (C21), the 22nd electric capacity (C22) and the 23rd electric capacity (C23) ground connection, by the first net of input vehicle commander's terminal
Network signal leaches.
Referring to the drawings 5, the 3rd adapter (X4) includes being connected with the signal input part of the second network signal filter circuit
12 contact pins, the signal output part of the second network signal filter circuit is provided with the TX+ connected one to one with 12 contact pins and draws
Line 2, TX-lead-in wire 2, RX+ signal 2, BI-D3+ lead-in wire 2, BI-D3-lead-in wire 2, RX-lead-in wire 2, BI-D4+ lead-in wire 2, BI-D4-lead-in wire
2, first+26V lead-in wire the 2, second+26V lead-in wire the 2, the oneth 26VGND lead-in wire 2 and the 2nd 26VGND lead-in wire 2；First+26V lead-in wire 2,
Second+26V lead-in wire the 2, the oneth 26VGND lead-in wire 2 and the 2nd 26VGND lead-in wire 2 respectively by the 16th electric capacity (C16), the 17th
Electric capacity (C17), the 18th electric capacity (C18) and the 19th electric capacity (C19) ground connection, enter the second network signal of input vehicle commander's terminal
Row leaches.
Referring to the drawings 5, the 5th adapter (X5) includes 5 be connected with the signal input part of RS422 signal filter circuit
Contact pin, the signal output part of RS422 signal filter circuit is provided with TXD+ lead-in wire, the TXD-connected one to one with 5 contact pins
Lead-in wire, RXD+ lead-in wire, RXD-lead-in wire and GND lead-in wire, TXD+ lead-in wire, TXD-lead-in wire, RXD+ lead-in wire, RXD-lead-in wire and GND lead-in wire
Respectively by the 12nd electric capacity (C12), the 14th electric capacity (C14), the 13rd electric capacity (C13), the 11st electric capacity (C11) and the tenth
Five electric capacity (C15) ground connection.
Referring to the drawings 5, the 6th adapter (X6) includes being connected with the signal input part of a RS232 signal filter circuit
5 contact pins, the signal output part of a RS232 signal filter circuit is provided with the TXD lead-in wire connected one to one with 5 contact pins
1, RXD lead-in wire 1, GND lead-in wire 1, CTS lead-in wire 1 and RTS lead-in wire 1；TXD lead-in wire 1, RXD lead-in wire 1, GND lead-in wire 1, CTS lead-in wire 1 and
RTS lead-in wire 1 is respectively by the 8th electric capacity (C8), the tenth electric capacity (C10), the 9th electric capacity (C9), the 7th electric capacity (C7) and the 6th electricity
Hold (C6) ground connection.
Referring to the drawings 5, the 7th adapter (X7) includes being connected with the signal input part of the 2nd RS232 signal filter circuit
5 contact pins, the signal output part of the 2nd RS232 signal filter circuit is provided with the TXD lead-in wire connected one to one with 5 contact pins
2, RXD lead-in wire 2, GND lead-in wire 2, CTS lead-in wire 2 and RTS lead-in wire 2；TXD lead-in wire 2, RXD lead-in wire 2, GND lead-in wire 2, CTS lead-in wire 2 and
RTS lead-in wire 2 is respectively by the 3rd electric capacity (C3), the 4th electric capacity (C4), the 5th electric capacity (C5), the first electric capacity (C1) and the second electric capacity
(C2) ground connection.
Threading opening is two, and two threading openings are the most just to signal filtering chamber 5, owing to the frequency spectrum on power line enriches,
Avoid power filter chamber 4 just to capping 9 on open threading opening, it is ensured that the seal of power filter chamber 4, prevent power supply from filtering
The equipment of signal filtering part and vehicle commander's terminal inner is interfered by the interference signal of ripple part；The top of capping 9 is provided with two
Individual insulator 11, two insulators 11 cover on two threading openings respectively, and line mouth is crossed in the sidewall upper shed of insulator 11, so makes
Threading opening through after lead-in wire, crossing line mouth is list structure so that goes between and arranges in order and closely crossing at line mouth
Row, facilitate filtering unit and command and control system wiring, and are possible to prevent 8 scratches that go between；Finally coat on filtering unit
Silicone rubber so that the components and parts antioxidation of filtering unit and prevent the components and parts moisture absorption, it is ensured that the properties of product of filtering unit and making
Use the life-span.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. a filtering unit, including the housing with chamber, it is characterised in that: the top of described housing is hatch frame, institute
Stating and be provided with dismountable cover plate at hatch frame, described cover plate is provided with for the threading opening through lead-in wire, with hatch frame phase
To sidewall outer surface on be sequentially provided with the first adapter (X1), the second adapter (X2), the 3rd adapter (X3), the 4th even
Connect device (X4), the 5th adapter (X5), the 6th adapter (X6) and the 7th adapter (X7)；The chamber of housing is formed by dividing plate
Power filter chamber and signal filtering chamber, the first adapter (X1) is positioned at the lateral wall of power filter chamber；Described power supply is filtered
Ripple chamber arranges electric source filter circuit plate, electric source filter circuit plate is integrated with electric source filter circuit, electric source filter circuit
The contact pin of input and the first adapter (X1) connects, and the outfan of electric source filter circuit is provided with lead-in wire；Described signal filtering chamber
Room arranges signal filter circuit plate, described signal filter circuit plate is integrated with signal filter circuit, described second adapter
(X2), the 3rd adapter (X3), the 4th adapter (X4), the 5th adapter (X5), the 6th adapter (X6) and the 7th adapter
(X7) contact pin in is connected with the signal input part of signal filter circuit, the signal output part of signal filter circuit is arranged and draws
Line；Described dividing plate be arranged right below base, dividing plate is provided with the fixing hole for installing feedthrough capacitor, described signal filtering chamber
Being provided with earthing rod near base position in room, the bottom of described dividing plate is provided with connection sheet, and described connection sheet is connected with earthing rod；Install
The outer surface of the sidewall of adapter is provided with conductive structure.
2. a kind of filtering unit as claimed in claim 1, it is characterised in that: described first adapter (X1) includes that 12 are inserted
Pin, described electric source filter circuit includes the first common mode inductance (L1), the second common mode inductance (L2), the 30th to the 39th electric capacity
(C30～C39), the 40th polar capacitor (C40), the first feedthrough capacitor (CY1-1), the second feedthrough capacitor (CY1-2), the 3rd wear
Electrocardio holds (CY3) and the 4th feedthrough capacitor (CY4), and the first common mode inductance includes the first inductance (L1-1) and the second inductance (L1-
2), the second common mode inductance includes the 3rd inductance (L2-1) and the 4th inductance (L2-2)；The input bag of described electric source filter circuit
Including input positive pole and input negative pole, the 1-6 contact pin of described input positive pole and the first adapter (X1) is connected, and inputs negative pole and the
The 7-12 contact pin of a connector (X1) is connected；The outfan of described electric source filter circuit includes output cathode and output negative pole,
And the outfan of described electric source filter circuit is provided with 12 lead-in wires, wherein No. 1-6 lead-in wire is output cathode, and 7-12 lead-in wire is
Output negative pole；The outfan of described first inductance (L1-1) is by the outfan of the 3rd inductance (L2-1) and electric source filter circuit
Positive pole connects, and the outfan of described second inductance (L1-2) is by the outfan of the 4th inductance (L2-2) and electric source filter circuit
Negative pole connects；The input of the first inductance (L1-1) and the second inductance (L1-2) is respectively through the 31st electric capacity (C31) and
32 electric capacity (C32) ground connection, after the 30th electric capacity (C30), the 33rd electric capacity (C33), the 34th electric capacity (C34) parallel connection
It is connected across between the input of the first inductance (L1-1) and the second inductance (L1-2)；Described first inductance (L1-1) and the second inductance
(L1-2) outfan is respectively through the 36th electric capacity (C36) and the 37th electric capacity (C37) ground connection, the 35th electric capacity
(C35) it is connected across between the outfan of the first inductance (L1-1) and the second inductance (L1-2)；38th electric capacity (C38), the 3rd
It is connected across the 3rd inductance (L2-1) and the 4th inductance (L2-2) after 19 electric capacity (C39) and the 40th polar capacitor (C40) parallel connection
Outfan between, the input of the 3rd inductance (L2-1) outfan and the first feedthrough capacitor (CY1-1) connects, the first punching electricity
The outfan holding (CY1-1) is connected with No. 1 lead-in wire and No. 2 lead-in wires；4th inductance (L2-2) outfan and the second feedthrough capacitor
(CY1-2) input connects, and the outfan of the second feedthrough capacitor (CY1-2) and No. 7 and No. 8 lead-in wires are connected；First inductance
(L1-1) input and the input of the 3rd feedthrough capacitor (CY3) connect, the outfan of the 3rd feedthrough capacitor (CY3) and 3-6
Number lead-in wire be connected；The input of described second inductance (L1-2) and the input of the 4th feedthrough capacitor (CY4) connect, the 4th punching
The outfan of electric capacity (CY4) is connected with No. 9-12 lead-in wire；First feedthrough capacitor (CY1-1), the second feedthrough capacitor (CY1-2),
The grounding shell of three electric capacity (CY3) and the 4th electric capacity (CY4) is all by dividing plate ground connection.
3. a kind of filtering unit as claimed in claim 1, it is characterised in that: described signal filter circuit includes that CAN signal is filtered
Wave circuit, first network signal filter circuit, the second network signal filter circuit, RS422 signal filter circuit, a RS232
Signal filter circuit and the 2nd RS232 signal filter circuit.
4. a kind of filtering unit as claimed in claim 3, it is characterised in that: described second adapter (X2) includes believing with CAN
6 contact pins that the signal input part of number filter circuit connects, the signal output part of CAN signal filter circuit is provided with respectively with 6
CAN_H that root contact pin connects one to one lead-in wire, CAN_L lead-in wire, CAN_GND lead-in wire, GPI1ISO lead-in wire, GPI2ISO lead-in wire and
GND GPI0 goes between；CAN_H lead-in wire is gone between by the end 29 electric capacity by the 27th electric capacity (C27) ground connection, CAN_L
(C29) ground connection, CAN_GND lead-in wire is gone between by the 26th electric capacity by the 28th electric capacity (C28) ground connection, GPI1ISO
(C26) ground connection, GPI2ISO lead-in wire is gone between by the 24th electric capacity by the 25th electric capacity (C25) ground connection, GND GPI0
(C24) ground connection.
5. a kind of filtering unit as claimed in claim 3, it is characterised in that: described 4th adapter (X3) includes and the first net
12 contact pins that the signal input part of network signal filter circuit connects, the signal output part of first network signal filter circuit is arranged
Have connect one to one with 12 contact pins TX+ lead-in wire 1, TX-lead-in wire 1, RX+ signal 1, BI-D3+ lead-in wire 1, BI-D3-lead-in wire 1,
RX-lead-in wire 1, BI-D4+ lead-in wire 1, BI-D4-lead-in wire the 1, first+26V lead-in wire the 1, second+26V lead-in wire the 1, the oneth 26VGND lead-in wire 1
With the 2nd 26VGND lead-in wire 1；First+26V lead-in wire the 1, second+26V lead-in wire the 1, the oneth 26VGND lead-in wire 1 and the 2nd 26VGND lead-in wire
1 respectively by with the 20th electric capacity (C20), the 21st electric capacity (C21), the 22nd electric capacity (C22) and the 23rd electric capacity
(C23) ground connection.
6. a kind of filtering unit as claimed in claim 3, it is characterised in that: described 3rd adapter (X4) includes and the second net
12 contact pins that the signal input part of network signal filter circuit connects, the signal output part of the second network signal filter circuit is arranged
Have connect one to one with 12 contact pins TX+ lead-in wire 2, TX-lead-in wire 2, RX+ signal 2, BI-D3+ lead-in wire 2, BI-D3-lead-in wire 2,
RX-lead-in wire 2, BI-D4+ lead-in wire 2, BI-D4-lead-in wire the 2, first+26V lead-in wire the 2, second+26V lead-in wire the 2, the oneth 26VGND lead-in wire 2
With the 2nd 26VGND lead-in wire 2；First+26V lead-in wire the 2, second+26V lead-in wire the 2, the oneth 26VGND lead-in wire 2 and the 2nd 26VGND lead-in wire
2 are connect by the 16th electric capacity (C16), the 17th electric capacity (C17), the 18th electric capacity (C18) and the 19th electric capacity (C19) respectively
Ground.
7. a kind of filtering unit as claimed in claim 3, it is characterised in that: described 5th adapter (X5) includes and RS422
5 contact pins that the signal input part of signal filter circuit connects, the signal output part of RS422 signal filter circuit is provided with and 5
TXD+ lead-in wire, TXD-lead-in wire, RXD+ lead-in wire, RXD-lead-in wire and the GND lead-in wire that root contact pin connects one to one, TXD+ lead-in wire,
TXD-lead-in wire, RXD+ lead-in wire, RXD-lead-in wire and GND lead-in wire respectively by the 12nd electric capacity (C12), the 14th electric capacity (C14), the
13 electric capacity (C13), the 11st electric capacity (C11) and the 15th electric capacity (C15) ground connection.
8. a kind of filtering unit as claimed in claim 3, it is characterised in that: described 6th adapter (X6) includes and first
5 contact pins that the signal input part of RS232 signal filter circuit connects, the signal output part of a RS232 signal filter circuit
Be provided with connect one to one with 5 contact pins TXD lead-in wire 1, RXD lead-in wire 1, GND lead-in wire 1, CTS lead-in wire 1 and RTS lead-in wire 1；
TXD lead-in wire 1, RXD lead-in wire 1, GND lead-in wire 1, CTS lead-in wire 1 and RTS lead-in wire 1 are respectively by the 8th electric capacity (C8), the tenth electric capacity
(C10), the 9th electric capacity (C9), the 7th electric capacity (C7) and the 6th electric capacity (C6) ground connection.
9. a kind of filtering unit as claimed in claim 3, it is characterised in that: described 7th adapter (X7) includes and second
5 contact pins that the signal input part of RS232 signal filter circuit connects, the signal output part of the 2nd RS232 signal filter circuit
Be provided with connect one to one with 5 contact pins TXD lead-in wire 2, RXD lead-in wire 2, GND lead-in wire 2, CTS lead-in wire 2 and RTS lead-in wire 2；
TXD lead-in wire 2, RXD lead-in wire 2, GND lead-in wire 2, CTS lead-in wire 2 and RTS lead-in wire 2 are respectively by the 3rd electric capacity (C3), the 4th electric capacity
(C4), the 5th electric capacity (C5), the first electric capacity (C1) and the second electric capacity (C2) ground connection.
10. a kind of filtering unit as claimed in claim 1, it is characterised in that: described threading opening is two, and two threading openings
The most just to signal filtering chamber, the top of capping is provided with two insulators, and two insulators cover on two threading openings respectively, institute
State and on the sidewall of insulator, had line mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610699943.7A CN106209000B (en) | 2016-08-22 | 2016-08-22 | A kind of filtering unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610699943.7A CN106209000B (en) | 2016-08-22 | 2016-08-22 | A kind of filtering unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106209000A true CN106209000A (en) | 2016-12-07 |
| CN106209000B CN106209000B (en) | 2019-04-09 |
Family
ID=57523838
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610699943.7A Active CN106209000B (en) | 2016-08-22 | 2016-08-22 | A kind of filtering unit |
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| Country | Link |
|---|---|
| CN (1) | CN106209000B (en) |
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| CN109219299A (en) * | 2018-10-31 | 2019-01-15 | 重庆山淞信息技术有限公司 | A kind of filter of more filter functions |
| CN109802642A (en) * | 2018-11-30 | 2019-05-24 | 江苏航天龙梦信息技术有限公司 | A kind of noise filtering method of mainboard memory power supply circuit |
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| Publication number | Publication date |
|---|---|
| CN106209000B (en) | 2019-04-09 |
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