CN207442444U - Cabin encoded servo device Surge Protector - Google Patents
Cabin encoded servo device Surge Protector Download PDFInfo
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- CN207442444U CN207442444U CN201721527802.3U CN201721527802U CN207442444U CN 207442444 U CN207442444 U CN 207442444U CN 201721527802 U CN201721527802 U CN 201721527802U CN 207442444 U CN207442444 U CN 207442444U
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Abstract
The utility model discloses a kind of Cabin encoded servo device Surge Protector; including anti-surge circuit; the anti-surge circuit includes the first pole protection circuit and second level protection circuit; first order protection circuit includes multiple discharge tubes; the target of discharge tube is connected to encoder place of working; lightning protection is connected by other discharge tube with encoder place of working, and second level protection circuit includes decoupling resistance, diode and varistor, and second level protection circuit is connected to encoder place of working.The utility model provides the protection of thunder-lightning, anti-overvoltage for encoded servo device.
Description
Technical field
The utility model is related to a kind of encoded servo device lightning arresters, are that a kind of encoded servo device surge is protected specifically
Device is protected, in the Cabin of astronomical telescope.
Background technology
500 meters of bore spherical radio astronomical telescopes of China's design（FAST）, 30 rice diameters are adopted using six roots of sensation cable wire
The Cabin of collection signal is suspended in tens meters aerial, and Cabin is 500 meters of bore spherical radio astronomical telescopes（FAST）'s
Core component is the correlation techniques such as structure set, mechanism, measurement, a control in one optical, mechanical and electronic integration complication system,
Its major function is that wind is overcome to disturb other disturbances with system, by the secondary adjusting apparatus in Cabin, using a wide range of, high
Precision, measurement and the corresponding control technology of high sampling rate realize the accurate accurate adjustment positioning of feed receiver.
Cabin there are six 170 meters of high steel towers by rope suspension in the air, being accurately positioned for Cabin is that have cable wire
What servo-control system on the ground of lower end was completed, the main devices of servo-control system are encoded servo devices, SERVO CONTROL system
For system among thunder and lightning circulation road, shell or connecting line have lightning current by the way that broken by lightning is very risky.SERVO CONTROL system
The main devices of system are encoded servo devices, and encoded servo device is also very big by the risk of broken by lightning.Cause the original of broken by lightning
Because mainly having：
1st, lightning directly hits Cabin or GPS shells, since lightning current conducts, directly reaches the outer of servo-control system
Shell.
2nd, lightning hits support tower, supporting cables, and lightning current makes cable will by the mobile support below supporting cables and supporting cables
Lightning current is conducted to servo-control system, due to lightning current electrical effect, causes Electrical and Electronic equipment failure or mistake fortune in cabin
Row.
3rd, lightning generates electrostatic induction in supporting cables, and induced electricity stream is made by the mobile support below supporting cables and supporting cables
Cable is moved to servo-control system, disturbs Electrical and Electronic equipment in cabin.
The content of the invention
The technical problem to be solved by the present invention is to provide a kind of encoded servo device surges in thunder and lightning circulation road
Protector provides the protection of thunder-lightning, anti-overvoltage for encoded servo device.
In order to solve the technical problem, the technical solution adopted in the utility model is：A kind of Cabin encoded servo device
Surge Protector, including anti-surge circuit, the anti-surge circuit includes the first pole protection circuit and second level protection circuit, the
First class of protection circuit includes multiple discharge tubes, and the target of discharge tube is connected to encoder place of working, and lightning protection passes through another
Outer discharge tube is connected with encoder place of working, the second level protection circuit include decoupling resistance, diode and varistor, second
Grade protection circuit is connected to encoder place of working.
Cabin encoded servo device Surge Protector described in the utility model, anti-surge circuit are arranged in housing, housing
On be additionally provided with signal input part, signal output part, ground terminal and equipotential end, it is defeated that anti-surge circuit by conducting wire is connected to signal
Enter between end and signal output part, signal output part connection encoded servo device, ground terminal is connected with lightning protection, equipotential end and
Encoder place of working is connected.
Cabin encoded servo device Surge Protector described in the utility model, signal input part and signal output part are equipped with
10 interfaces are connected between signal input part and the corresponding interface of signal output part by conducting wire, and first order protection circuit includes 5
A ceramic gas discharge tube Q1-Q5 and discharge tube Q6, ceramic gas discharge tube are connected between two adjacent conducting wires, pottery
The electrode at porcelain gas-discharge tube both ends is connected respectively with two signal input parts, and gas-discharge tube target works with encoder
Ground is connected, and lightning protection is connected by discharge tube Q6 with the place of working of encoder；Second level protection circuit includes diode D1-
D18, varistor MOV1-MOV3 and decoupling resistance R1-R10, decoupling resistance R1-R10 be serially connected in respectively signal input part and
On 10 conducting wires between signal output part, the connection of resistance R1-R8 rear ends is using the diode D1-D18 of matrix form connection, resistance
The varistor MOV1-MOV3 that the connection of R9, R10 rear end is connected using full mould protected mode.
Cabin encoded servo device Surge Protector described in the utility model, diode D1, D3, D5, D7, D9, D11,
D13, D15 form a line, their anode is connected to the rear end of resistance R1-R8, their cathode link together after again
The cathode of diode D17 is connected to, diode D2, D4, D6, D8, D10, D12, D14, D16 form a line, their cathode point
The rear end of resistance R1-R8 is not connected to, their anode is then connected to diode D18 anode after linking together is connected to volume
The place of working of code device, is in series with Transient Suppression Diode TVS1, connects between diode D15 and D16 between diode D5 and D6
There is Transient Suppression Diode TVS2；Varistor MOV1 be connected to the circuit where resistance R9 and the circuit where resistance R10 it
Between, varistor MOV2, MOV3 are parallel to circuit where resistance R9 with being connected ceramic gas discharge tube target and coding
Between the circuit in device place of working.
Cabin encoded servo device Surge Protector described in the utility model, the circuit where resistance R1, R2 are used for transmission
Clock signal, the circuit where resistance R3, R4 are used for transmission data-signal, and the circuit where resistance R5, R6, R7, R8 is used to pass
Defeated control signal, the circuit where resistance R9, R10 are used for transmission power supply signal.
The beneficial effects of the utility model：The utility model can be filtered out in signal wire because thunder and lightning or other reasons generate
Overvoltage and overcurrent, and block the intrusion of external surge electric current, effectively protection is using the encoded servo in thunder and lightning circulation road
Device from thunder and lightning and other magnetic fields, electric field etc. interference and destruction.
Description of the drawings
Fig. 1 is the circuit diagram of embodiment 1；
In figure：IN, signal input part, OUT, signal output part, Q1-Q5, ceramic gas discharge tube, Q6, discharge tube, R1-
R10, decoupling resistance, D1-D18, diode, MOV1-MOV3, varistor, TVS1-TVS2, Transient Suppression Diode are prevented PE,
Thunder is grounded, EL, encoder place of working, el, bonding wire.
Specific embodiment
The utility model is further described in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, a kind of encoded servo device Surge Protector, including anti-surge circuit, anti-surge circuit includes first
Circuit and second level protection circuit are protected in pole, and first order protection circuit includes multiple discharge tubes, and the target of discharge tube connects
To encoder place of working EL, lightning protection PE is connected by other discharge tube with encoder place of working EL, second level protection electricity
Road includes decoupling resistance, diode and varistor, and second level protection circuit is connected to encoder place of working EL.
In the present embodiment, anti-surge circuit is arranged in housing, be additionally provided on housing signal input part, signal output part,
Ground terminal and equipotential end, anti-surge circuit are connected to by conducting wire between signal input part and signal output part, signal output
End connection encoded servo device, ground terminal are connected with lightning protection, equipotential end connection bonding wire.
In the present embodiment, signal input part IN and signal output part OUT are equipped with 10 interfaces, signal input part IN and letter
It is connected between number corresponding interfaces of output terminal OUT by conducting wire, first order protection circuit includes 5 ceramic gas discharge tube Q1-
Q5 and discharge tube Q6, ceramic gas discharge tube are connected between two adjacent conducting wires, ceramic gas discharge tube both ends
Electrode is connected respectively with two signal input parts, and gas-discharge tube target is connected with encoder place of working EL, and lightning protection connects
Ground PE is connected by discharge tube Q6 with encoder place of working EL, achievees the purpose that be isolated with external surge electric current.
Second level protection circuit includes diode D1-D18, varistor MOV1-MOV3 and decoupling resistance R1-R10, moves back
Coupling resistance R1-R10 is serially connected in respectively on 10 conducting wires between signal input part and signal output part, and resistance R1-R8 rear ends connect
Connect the diode D1-D18 using matrix form connection, the pressure-sensitive electricity that the connection of resistance R9, R10 rear ends is connected using full mould protected mode
Hinder MOV1-MOV3.
Specifically, diode D1, D3, D5, D7, D9, D11, D13, D15 form a line, their anode is connected to
The rear end of resistance R1-R8, their cathode are then connected to the cathode of diode D17 after linking together, diode D2, D4, D6,
D8, D10, D12, D14, D16 form a line, their cathode is connected to the rear end of resistance R1-R8, their anode connection
The anode for being then connected to diode D18 afterwards together is connected to the place of working of encoder, and wink is in series between diode D5 and D6
State inhibits diode TVS1, and Transient Suppression Diode TVS2 is in series between diode D15 and D16；Varistor MOV1 connections
Between the circuit where resistance R9 and the circuit where resistance R10, varistor MOV2, MOV3 are parallel to where resistance R9
Between circuit and connection ceramic gas discharge tube target and the circuit in encoder place of working.
In the present embodiment, the anti-surge protection circuit can simultaneous transmission multi-signal, such as the circuit where resistance R1, R2
Clock signal is used for transmission, the circuit where resistance R3, R4 is used for transmission data-signal, the line where resistance R5, R6, R7, R8
Road is used for transmission control signal, and the circuit where resistance R9, R10 is used for transmission power supply signal.Surge protector is connect by lightning protection
Ground terminal PE is connected with housing, and other end EL is connected with encoder place of working so that surge protector is applied to by protection equipment
On /V voltage of voltage when being consistently equal to lightning protection component conducting, realize to being grounded both end voltage on surge protector
It eliminates.
When signal wire is because of lightning stroke or other reasons generation overcurrent, larger electric current is filtered out by discharge tube, then is led to
The overcurrent in the metering function elimination network of current-limiting resistance is crossed, extra electric current is discharged by diode and varistor,
So as to ensure that the network equipment is not damaged and normal operation.
In the present embodiment, the place of working outconnector el of encoder, el connecting lines be bonding wire, encoder work
Make ground EL protects circuit and the second level to protect circuit, and encoder place of working EL by the bonding wire el connections first order
Pass through bonding wire el, discharge tube Q6 connection lightning protections PE.Bonding wire el, which is individually drawn, is connected to servo volume
Code device place of working EL, surge current is because of the access of discharge tube Q6 so that the current potential of el lines raise to reach with per signal line it
Between " potential balance ", extra surge current by Q6 be released to the earth；Q6 and the intrusion for preventing external surge current,
So as to so that the encoded servo device surge protector of the utility model from extraneous electromagnetic interference, Electro Magnetic Compatibility higher,
Equipment is also safer.
Described above is only the basic principle and preferred embodiment of the utility model, and those skilled in the art are according to this reality
With the new improvement and replacement made, belong to the scope of protection of the utility model.
Claims (5)
1. a kind of Cabin encoded servo device Surge Protector, it is characterised in that：Including anti-surge circuit, the anti-surge circuit
Circuit and second level protection circuit are protected including the first pole, first order protection circuit includes multiple discharge tubes, the centre of discharge tube
Electrode is connected to encoder place of working, and lightning protection is connected by other discharge tube with encoder place of working, second level protection
Circuit includes decoupling resistance, diode and varistor, and second level protection circuit is connected to encoder place of working.
2. Cabin encoded servo device Surge Protector according to claim 1, it is characterised in that：Anti- surge circuit is set
In being additionally provided with signal input part, signal output part, ground terminal and equipotential end in housing, on housing, anti-surge circuit is by leading
Line is connected between signal input part and signal output part, signal output part connection encoded servo device, ground terminal and lightning protection
It is connected, equipotential end is connected with encoder place of working.
3. Cabin encoded servo device Surge Protector according to claim 2, it is characterised in that：Signal input part and letter
Number output terminal is equipped with 10 interfaces, is connected between signal input part and the corresponding interface of signal output part by conducting wire, first
Grade protection circuit includes 5 ceramic gas discharge tube Q1-Q5 and discharge tube Q6, and ceramic gas discharge tube is connected to two phases
Between adjacent conducting wire, the electrode at ceramic gas discharge tube both ends is connected respectively with two signal input parts, among gas-discharge tube
Electrode is connected with encoder place of working, and lightning protection is connected by discharge tube Q6 with the place of working of encoder；It protects the second level
Circuit includes diode D1-D18, varistor MOV1-MOV3 and decoupling resistance R1-R10, and decoupling resistance R1-R10 goes here and there respectively
It is connected on 10 conducting wires between signal input part and signal output part, the connection of resistance R1-R8 rear ends is using matrix form connection
The varistor MOV1-MOV3 that the connection of diode D1-D18, resistance R9, R10 rear end is connected using full mould protected mode.
4. Cabin encoded servo device Surge Protector according to claim 3, it is characterised in that：Diode D1, D3,
D5, D7, D9, D11, D13, D15 form a line, their anode is connected to the rear end of resistance R1-R8, their cathode connects
The cathode of diode D17 is then connected to after being connected together, diode D2, D4, D6, D8, D10, D12, D14, D16 form a line,
Their cathode is connected to the rear end of resistance R1-R8, their anode is then connected to diode D18's after linking together
Anode is connected to the place of working of encoder, is in series with Transient Suppression Diode TVS1 between diode D5 and D6, diode D15 and
Transient Suppression Diode TVS2 is in series between D16；Varistor MOV1 is connected to circuit and resistance R10 institutes where resistance R9
Circuit between, varistor MOV2, MOV3 are parallel to circuit where resistance R9 with being connected among ceramic gas discharge tube
Between electrode and the circuit in encoder place of working.
5. Cabin encoded servo device Surge Protector according to claim 3, it is characterised in that：Where resistance R1, R2
Circuit be used for transmission clock signal, the circuit where resistance R3, R4 is used for transmission data-signal, resistance R5, R6, R7, R8 institute
Circuit be used for transmission control signal, the circuit where resistance R9, R10 is used for transmission power supply signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721527802.3U CN207442444U (en) | 2017-11-16 | 2017-11-16 | Cabin encoded servo device Surge Protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721527802.3U CN207442444U (en) | 2017-11-16 | 2017-11-16 | Cabin encoded servo device Surge Protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207442444U true CN207442444U (en) | 2018-06-01 |
Family
ID=62289669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721527802.3U Active CN207442444U (en) | 2017-11-16 | 2017-11-16 | Cabin encoded servo device Surge Protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207442444U (en) |
-
2017
- 2017-11-16 CN CN201721527802.3U patent/CN207442444U/en active Active
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