CN208571115U - A kind of wiring board inhibiting electrical fast transient (eft) interference - Google Patents
A kind of wiring board inhibiting electrical fast transient (eft) interference Download PDFInfo
- Publication number
- CN208571115U CN208571115U CN201721506254.6U CN201721506254U CN208571115U CN 208571115 U CN208571115 U CN 208571115U CN 201721506254 U CN201721506254 U CN 201721506254U CN 208571115 U CN208571115 U CN 208571115U
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- China
- Prior art keywords
- line
- eft
- fast transient
- wiring board
- electrical fast
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses a kind of wiring boards of inhibition electrical fast transient (eft) interference, including wiring board ontology, several sockets, three copper wire L lines, N line, G line and several electrical fast transient (eft)s to inhibit device；L line, N line and G line distinguish a jack on successively each described socket；Each described electrical fast transient (eft) inhibits device to be connected among two adjacent sockets；It includes two magnet rings L1 and L2 that each described electrical fast transient (eft), which inhibits device,；Two differential mode capacitors C1 and C2；Two common mode capacitances C3 and C4；Each described L1 is fixed on the L line；Each described L2 is fixed on the N line；Each described C1 and C2 connects among the L line and N line；Each described C3 connects among the L line and G line；Each described C4 connects among N line and G line.Patch board provided by the utility model is simple, and cost is relatively low, and security performance is high, is applicable in family daily life.
Description
Technical field
The utility model relates to residents and use for laboratory electric equipment, relate generally to a kind of wiring board.
Background technique
Electrical fast transient (eft) results from transient process when inductive load switches on and off, with common mode and differential mode
Impulse disturbances energy is injected into electronic equipment by form from power supply or signal port, forms electromagnetic interference.
In general, having multiple three holes and two spring hole scokets on wiring board, existing wiring board is not accounted for electric fast transient
The protection design of impulse train.When electrical equipment plug connects socket or will disconnect in a flash from socket.Due in inductive load
Electric current cannot be mutated, there is transient overvoltage in inductive load both ends, the electricity that this overvoltage and inductive load both ends cannot be mutated
Source voltage is superimposed, acts on plug both ends, forms electric arc between plug contacts, electric spark, electric current change dramatically and companion occurs
With there is the biggish electromagnetic interference pulses of energy.Electromagnetic interference pulses are by L, N, G line in wiring board to being connected on wiring board
Other electronic equipments form strong electromagnetic interference.
Utility model content
To solve the above-mentioned problems, the utility model provide it is a kind of inhibition electrical fast transient (eft) interference plug wire
Plate, including wiring board ontology, several sockets, three copper wire L lines, N line, G line and several electrical fast transient (eft)s inhibit
Device；Each described socket is sequentially arranged on the wiring board ontology；L line, N line and G line difference are successively described in each
A jack on socket；Each described electrical fast transient (eft) inhibits device to be connected in two adjacent sockets
Between.
Further, it includes two magnet rings L1 and L2 that each described electrical fast transient (eft), which inhibits device,；Two
Differential mode capacitor C1 and C2；Two common mode capacitances C3 and C4；Each described L1 is fixed on the L line；Each described L2 is solid
It is scheduled on the N line；Each described C1 and C2 connects among the L line and N line；Each described C3 connects in the L line and G
Among line；Each described C4 connects among N line and G line.
Further, the C1 and C2 is thin-film capacitor；The C3 and C4 is ceramic condenser；The L1 and L2 is iron oxygen
Body magnet ring.
Further, the socket includes Three-hole socket and two spring hole scokets；Three holes of the Three-hole socket connect respectively
Connect the L line, N line and G line；Two holes of two spring hole scoket are separately connected the L line and the N line.
The wiring board of a kind of electrical fast transient (eft) interference provided by the utility model, by adding electricity on the power line
Clusters inhibit device, eliminate electronic equipment in connection wiring board and the electricity generated from wiring board disconnection process
Clusters interference avoids generating electromagnetic interference to other electronic equipments being connected on same wiring board.C 1WithC 2Match
Ferrite bead is closed, the DM EMI energy that electrical fast transient (eft) is formed is absorbed；C 3WithC 4Cooperate ferrite bead, it will be electric
The common mode interference that Clusters are formed is coupled into the earth.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wiring board provided by the utility model.
Specific embodiment
Embodiment one
As shown in Figure 1, a kind of wiring board for inhibiting electrical fast transient (eft) interference provided by the utility model, including insert
Line plate ontology 1, several sockets, three copper wire L lines, N line, G line and several electrical fast transient (eft)s inhibit device 4；Often
One socket is sequentially arranged on the wiring board ontology 1；L line, N line and G line difference are successively on each described socket
A jack；Each described electrical fast transient (eft) inhibits device 4 to be connected among two adjacent sockets.
Specifically, it includes two magnet rings L1 and L2 that each described electrical fast transient (eft), which inhibits device 4,；Two differential modes
Capacitor C1 and C2；Two common mode capacitances C3 and C4；Each described L1 covers on the L line；Each described L2 is covered in the N
On line；Each described C1 and C2 connects among the L line and N line；Each described C3 connects among the L line and G line；Often
One C4 connects among N line and G line.
Specifically, the C1 and C2 are thin-film capacitors；The C3 and C4 is ceramic condenser；The L1 and L2 is ferrite magnetic
Ring.
Specifically, the socket includes Three-hole socket 2 and two spring hole scokets 3；Three holes of the Three-hole socket 2 are separately connected
The L line, N line and G line；Two holes of two spring hole scoket 3 are separately connected the L line and the N line.
When wiring board is powered, there is electric current to pass through on the L line and the N line；Because the L1 and the L2 are covered in institute
State on L line and the N line, when have on the L line and the N line electric current by generate electrical fast transient (eft) be the arteries and veins
It rushes group and forms high frequency magnetic field, increase the induction reactance of the inductance between the L1 and the L line, the L2 and the N line, the L1
High impedance is shown as with the L2；To convert pulse energy to the heat of the L1, the L2, the L line and the N line
Amount, dissipates, and pulse current of decaying reduces magnetic field energy.The C1 and C2 and L1 and L2 cooperates, and absorbs
The DM EMI energy that electrical fast transient (eft) is formed；The C3 and C4 and L1 and L2 cooperates, will be electric fast
The common mode interference that fast transient pulse train is formed is coupled into the earth, to reach the interference for inhibiting electrical fast transient (eft).
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (4)
1. it is a kind of inhibit electrical fast transient (eft) interference wiring board, it is characterised in that: including wiring board ontology, several insert
Seat, three copper wire L lines, N line, G line and several electrical fast transient (eft)s inhibit device；Each described socket is arranged successively
On the wiring board ontology；L line, N line and G line distinguish a jack on successively each described socket；Described in each
Electrical fast transient (eft) inhibits device to be connected among two adjacent sockets.
2. a kind of wiring board for inhibiting electrical fast transient (eft) interference as described in claim 1, it is characterised in that: each institute
Stating electrical fast transient (eft) to inhibit device includes two magnet rings L1 and L2；Two differential mode capacitors C1 and C2；Two common mode capacitances
C3 and C4；Each described L1 is fixed on the L line；Each described L2 is fixed on the N line；Each described C1 and
C2 connects among the L line and N line；Each described C3 connects among the L line and G line；Each described C4 connect in N line and
Among G line.
3. as claimed in claim 2 it is a kind of inhibit electrical fast transient (eft) interference wiring board, it is characterised in that: the C1 and
C2 is thin-film capacitor；The C3 and C4 is ceramic condenser；The L1 and L2 is ferrite bead.
4. a kind of wiring board for inhibiting electrical fast transient (eft) interference as described in claim 1, it is characterised in that: the socket
Including Three-hole socket and two spring hole scokets；Three holes of the Three-hole socket are separately connected the L line, N line and G line；Two hole
Two holes of socket are separately connected the L line and the N line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721506254.6U CN208571115U (en) | 2017-11-13 | 2017-11-13 | A kind of wiring board inhibiting electrical fast transient (eft) interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721506254.6U CN208571115U (en) | 2017-11-13 | 2017-11-13 | A kind of wiring board inhibiting electrical fast transient (eft) interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208571115U true CN208571115U (en) | 2019-03-01 |
Family
ID=65445591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721506254.6U Expired - Fee Related CN208571115U (en) | 2017-11-13 | 2017-11-13 | A kind of wiring board inhibiting electrical fast transient (eft) interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208571115U (en) |
-
2017
- 2017-11-13 CN CN201721506254.6U patent/CN208571115U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 Termination date: 20201113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |