CN206431195U - A kind of railway locomotive fixes shunt resistance current monitoring device with traction electric machine - Google Patents
A kind of railway locomotive fixes shunt resistance current monitoring device with traction electric machine Download PDFInfo
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- CN206431195U CN206431195U CN201621486077.5U CN201621486077U CN206431195U CN 206431195 U CN206431195 U CN 206431195U CN 201621486077 U CN201621486077 U CN 201621486077U CN 206431195 U CN206431195 U CN 206431195U
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Abstract
The utility model is related to railway locomotive field, shunt resistance current monitoring device can be fixed with traction electric machine to railway locomotive there is provided one kind, the device includes current sensor, current signal collector, single-chip microcomputer, memory and sound circuit, current sensor is arranged on traction electric machine and fixed in the connecting wire of shunt resistance, for gathering the current value on fixed shunt resistance wire；The input of current signal collector is connected with the signal output part of the current sensor, and the signal input part connection of output end and single-chip microcomputer, the current value for the current sensor to be transmitted is converted into data signal and is sent to single-chip microcomputer；Single-chip microcomputer is used for the real-time current value and the size of early warning current value and fault curre for comparing the fixed shunt resistance, and according to comparative result output control signal, the work of control voice circuit.The utility model can realize the effective monitoring of shunt resistance current value, improve the security of railway locomotive operation.
Description
Technical field
The utility model is related to railway locomotive field, and in particular to a kind of railway locomotive fixes shunt resistance with traction electric machine
Current monitoring device and method.
Background technology
In railway locomotive equipment, fixed shunt resistance is connected in parallel on motor main frame winding, and its effect is by armature supply
In AC compounent shunting, make in motor base and main pole because alternating flux eddy-current loss reduce, improve motor commutation
With main pole temperature rise.Railway locomotive operationally, due to static exciter winding rosin joint or open circuit, smoothing reactor failure and change
Flow the output of device half-wave so that increase by fixed shunt resistance electric current, and final scaling loss fixes shunt resistance and causes main ground connection
Failure causes accident of locomotive defect, and fire can be caused when serious.Therefore, when being monitored in real time to the motor operation situation of railway locomotive
Seem increasingly important.It is therefore, anxious because the size of current of fixed shunt resistance is often closely bound up with safe
Need a kind of device that can be monitored to fixed shunt resistance electric current of utility model.
Utility model content
The utility model overcomes the shortcomings of that prior art is present, and technical problem to be solved is：There is provided one kind can be right
Railway locomotive fixes the apparatus and method that shunt resistance carries out current monitoring with traction electric machine.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：Railway locomotive is solid with traction electric machine
Determine shunt resistance current monitoring device, including：
Current sensor：Fixed installed in traction electric machine in the connecting wire of shunt resistance, for gathering fixed branch electricity
Hinder the current value on wire；
Current signal collector：Input is connected with the signal output part of the current sensor, output end and single-chip microcomputer
Signal input part connection, the current value for the current sensor to be transmitted is converted into data signal and is sent to monolithic
Machine；
Single-chip microcomputer：For comparing the real-time current value of the fixed shunt resistance and early warning current value and fault curre
Size, and according to comparative result delay output or direct output control signal, the work of control voice circuit；
Memory：It is connected with the single-chip microcomputer, current value and alarm feelings for recording fixed shunt resistance in real time
Condition；
Sound circuit：Including speech chip and loudspeaker, the speech chip is used for the control exported according to the single-chip microcomputer
Signal processed, controls the loudspeaker sounding.
Described railway locomotive fixes shunt resistance current monitoring device, in addition to the time relay, institute with traction electric machine
The first signal output part for stating single-chip microcomputer is connected by the time relay with the speech chip, and the second of the single-chip microcomputer
Signal output part is directly connected with the speech chip, when the real-time current value exceedes early warning current value and less than or equal to failure
During current value, the first signal output part output control signal of the single-chip microcomputer；When the real-time current value exceedes the failure
During current value, the secondary signal output end output control signal of the single-chip microcomputer.
The early warning current value is 1.3 times of the fixed shunt resistance rated current, and the fault curre is described
1.8 times of fixed shunt resistance rated current, the time delay of the time relay is 5s.
Described railway locomotive fixes shunt resistance current monitoring device, in addition to touch display screen, institute with traction electric machine
State touch display screen to be connected with the 3rd signal output part of the single-chip microcomputer, the electric current for showing fixed shunt resistance in real time
Value, abort situation and the historical data for inquiring about memory storage.
Described railway locomotive fixes shunt resistance current monitoring device, in addition to power insert with traction electric machine, described
The input of power insert is connected with 110V dc sources, the output end of the power insert respectively with current sensor, electric current
Signal picker, single-chip microcomputer, memory and speech chip connection, for giving current sensor, current signal collector, list respectively
Piece machine, memory and sound circuit are powered.
Described railway locomotive fixes shunt resistance current monitoring device, in addition to alarm lamp, the report with traction electric machine
The current input terminal of warning lamp is connected with the 4th signal output part of the single-chip microcomputer, and single-chip microcomputer is additionally operable to exceed in real-time current value
During the early warning value, control alarm lamp carries out luminous alarm.
The utility model has the advantages that compared with prior art：
1st, in the utility model, current sensing means includes current sensor, current signal collector, single-chip microcomputer, storage
Device and sound circuit, circuit sensor detect the real-time current that traction electric machine fixes shunt resistance, are gathered by current signal
Device, which is converted into after data signal, is transferred to single-chip microcomputer, and single-chip microcomputer is monitored to the real-time current, and compares real-time current and pre-
The difference of alert current value and fault curre, when reaching alert if, control voice circuit sends alarm.Therefore, originally
The current sensing means of utility model can realize that the current value of traction electric machine fixation shunt resistance is monitored in real time, it is to avoid hair
Raw traction electric machine fixes the accident that shunt resistance scaling loss causes fire, and the incipient fault progress in time to railway locomotive is effective pre-
It is alert, improve the security of railway locomotive operation；
2nd, current sensing means of the present utility model has sound and light of alarm, when monitor real-time current value exceed early warning
Current value and it continue for after certain time, single-chip microcomputer control voice circuit and alarm lamp send alarm, point out driver and conductor
Fixed shunt resistance abort situation is checked, trouble hunting is carried out, when monitoring that real-time current value exceedes fault curre, monolithic
Control voice circuit sends alarm to machine immediately, points out driver and conductor excision faulty circuit, checks fixed shunt resistance failure
Position.Therefore, the device is practical, it is possible to achieve the multi-level monitoring of fixed shunt resistance electric current.
Brief description of the drawings
Fig. 1 fixes shunt resistance current monitoring device with traction electric machine for the railway locomotive that the utility model embodiment is provided
Electrical block diagram.
Embodiment
, below will be to the utility model to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Technical scheme in embodiment is clearly and completely described, it is clear that described embodiment is a part of the present utility model
Embodiment, rather than whole embodiments；Based on the embodiment in the utility model, those of ordinary skill in the art are not making
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of the utility model protection.
As shown in figure 1, the utility model embodiment fixes shunt resistance electric current prison with traction electric machine there is provided railway locomotive
Device is surveyed, including：Current sensor 1, current signal collector 2, single-chip microcomputer 3, memory 4, sound circuit, touch display screen 6
With power insert 7, wherein, current sensor 1 is arranged on traction electric machine and fixed in the connecting wire of shunt resistance, solid for gathering
Determine the current value on shunt resistance wire；The signal output part of current sensor 1 connects with the input of current signal collector 2
Connect, the output end of current sensor 1 is connected with the signal input part of single-chip microcomputer 3, current signal collector 2 is used for the electric current
The current value that sensor 1 is transmitted is converted into data signal and is sent to single-chip microcomputer 3；Single-chip microcomputer 3 is used to compare the fixed branch
The real-time current value of resistance and the size of early warning current value and fault curre, and according to comparative result output control signal, control
Sound circuit work processed；Specifically, when the current signal collector 2 send real-time current value Ic meet condition Ia ＜ Ic≤
During Ib, the delay 5s output control signals of single-chip microcomputer 3 control the sound circuit work, voice message " fixed shunt resistance electric current
It is excessive, current of electric state please be check ", when the current value Ic that the current signal collector 2 is sent meets condition Ic ＞ Ib,
The instant output control signal of the single-chip microcomputer 3 controls the sound circuit to work immediately, voice message " fixed shunt resistance electric current
It is excessive, current of electric state please be check "；Ia is the early warning current value of fixed shunt resistance, and Ib is the failure of fixed shunt resistance
Current value.
Further, the early warning current value Ia may be set to the 1.3 of the rated current of traction electric machine fixation shunt resistance
Times, the fault curre Ib may be set to 1.8 times that traction electric machine fixes the rated current of shunt resistance.
Wherein, when real-time current value Ic meets condition Ia ＜ Ic≤Ib, single-chip microcomputer 3 can also postpone longer or shorter
Output control signal after time value, controls the sound circuit work, the time of specific delay output control signal can basis
Circuit concrete condition is determined.
Further, a kind of railway locomotive of the present embodiment fixes shunt resistance current monitoring device with traction electric machine, also
The time relay 9 can be included, the first signal output part of the single-chip microcomputer 3 passes through the time relay 9 and the voice
Chip 5 is connected, and the secondary signal output end of the single-chip microcomputer 3 is directly connected with the speech chip 5, when the real-time current value
More than early warning current value and less than fault curre when, the first signal output part output control signal of the single-chip microcomputer 3；Work as institute
When stating real-time current value more than the fault curre, the secondary signal output end output control signal of the single-chip microcomputer.Time
The time delay of relay 9 can determine according to circuit concrete condition, however it is not limited to 5s as described above.
Wherein, memory 4 is connected with single-chip microcomputer 3, current value and alarm feelings for recording fixed shunt resistance in real time
Condition；Sound circuit includes speech chip 51 and loudspeaker, and the speech chip 51 is used for the control exported according to the single-chip microcomputer 3
Signal, controls the loudspeaker sounding.The touch display screen 6 is connected with the 3rd signal output part of the single-chip microcomputer 3, is used for
The historical data that the current value of the fixed shunt resistance of display in real time, abort situation and inquiry memory 4 are stored.
Further, the railway locomotive that the utility model embodiment is provided fixes shunt resistance current monitoring with traction electric machine
Device, in addition to power insert 7, the input of the power insert 7 are connected with 110V dc sources, the power insert 7
Output end output ± 24V, ± 15V, ± 12V, ± 5V, its output end respectively with current sensor 1, current signal collector 2, single
Piece machine 3, memory 4 and speech chip 5 are connected, for respectively to current sensor 1, current signal collector 2, single-chip microcomputer 3, deposit
Reservoir 4 and speech chip 5 are powered.Power insert 7 is provided with input/output overcurrent and input/output overvoltage or under-voltage protection function,
Power supply can be introduced with locomotive to device in itself to implement to protect.
Further, the railway locomotive that the utility model embodiment is provided fixes shunt resistance current monitoring with traction electric machine
Device, can also include alarm lamp 8, and the current input terminal of the alarm lamp 8 is connected with the signal output part of the single-chip microcomputer 3,
Single-chip microcomputer 3 is additionally operable to when real-time current value exceedes early warning value, and control alarm lamp 8 carries out luminous alarm.
The utility model fixes shunt resistance current monitoring device, including electricity with traction electric machine there is provided a kind of railway locomotive
Flow sensor, current signal collector, single-chip microcomputer, memory and sound circuit, circuit sensor detect traction electric machine and fixed
The real-time current of shunt resistance, is converted into after data signal by current signal collector and is transferred to single-chip microcomputer, and single-chip microcomputer is to this
Real-time current is monitored, and compares the size of real-time current and early warning electric current and fault current, when reaching alert if, control
Sound circuit processed sends alarm.Therefore, current sensing means of the present utility model can realize that traction electric machine fixes branch
The current value of resistance is monitored in real time, can be prevented effectively from too high by fixed shunt resistance electric current, it is to avoid occur traction electric machine
Fixed shunt resistance scaling loss causes the accident of fire, and the incipient fault to railway locomotive carries out effective early warning, improves iron in time
The safety and reliability of road locomotive operation, with good economy and social benefit.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (6)
1. railway locomotive fixes shunt resistance current monitoring device with traction electric machine, it is characterised in that including：
Current sensor（1）：Fixed installed in traction electric machine in the connecting wire of shunt resistance, for gathering fixed shunt resistance
Current value on wire；
Current signal collector（2）：Input and the current sensor（1）Signal output part connection, output end and monolithic
Machine（3）Signal input part connection, for by the current sensor（1）The current value of transmission is converted into data signal and sent
To single-chip microcomputer（3）；
Single-chip microcomputer（3）：For comparing the real-time current value of the fixed shunt resistance and early warning current value and fault curre
Size, and according to comparative result delay output or direct output control signal, the work of control voice circuit；
Memory（4）：With the single-chip microcomputer（3）Connection, current value and alarm feelings for recording fixed shunt resistance in real time
Condition；
Sound circuit：Including speech chip（5）And loudspeaker, the speech chip（5）For what is exported according to the single-chip microcomputer
Control signal, controls the loudspeaker sounding.
2. railway locomotive according to claim 1 fixes shunt resistance current monitoring device with traction electric machine, its feature exists
In, in addition to the time relay（9）, the first signal output part of the single-chip microcomputer passes through the time relay（9）With it is described
Speech chip（5）Connection, the secondary signal output end of the single-chip microcomputer directly with the speech chip（5）Connection, when the reality
When current value exceed early warning current value and less than or equal to fault curre when, the single-chip microcomputer（3）The first signal output part it is defeated
Go out control signal；When the real-time current value exceedes the fault curre, the secondary signal output end of the single-chip microcomputer is defeated
Go out control signal.
3. railway locomotive according to claim 2 fixes shunt resistance current monitoring device with traction electric machine, its feature exists
In the early warning current value is 1.3 times of the fixed shunt resistance rated current, and the fault curre is the fixation point
1.8 times of road resistance rated current, the time delay of the time relay is 5s.
4. railway locomotive according to claim 1 fixes shunt resistance current monitoring device with traction electric machine, its feature exists
In, in addition to touch display screen（6）, the touch display screen（6）With the single-chip microcomputer（3）The 3rd signal output part connection,
Current value for showing fixed shunt resistance in real time, abort situation and inquiry memory（4）The historical data of storage.
5. railway locomotive according to claim 1 fixes shunt resistance current monitoring device with traction electric machine, its feature exists
In, in addition to power insert（7）, the power insert（7）Input be connected with 110V dc sources, the power insert
（7）Output end respectively with current sensor（1）, current signal collector（2）, single-chip microcomputer（3）, memory（4）With voice core
Piece（5）Connection, for giving current sensor respectively（1）, current signal collector（2）, single-chip microcomputer（3）, memory（4）And voice
Circuit is powered.
6. railway locomotive according to claim 1 fixes shunt resistance current monitoring device with traction electric machine, its feature exists
In, in addition to alarm lamp（8）, the alarm lamp（8）Current input terminal and the single-chip microcomputer（3）The 4th signal output part connect
Connect, single-chip microcomputer（3）It is additionally operable to, when real-time current value exceedes the early warning value, control alarm lamp（8）Carry out luminous alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621486077.5U CN206431195U (en) | 2016-12-31 | 2016-12-31 | A kind of railway locomotive fixes shunt resistance current monitoring device with traction electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621486077.5U CN206431195U (en) | 2016-12-31 | 2016-12-31 | A kind of railway locomotive fixes shunt resistance current monitoring device with traction electric machine |
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| Publication Number | Publication Date |
|---|---|
| CN206431195U true CN206431195U (en) | 2017-08-22 |
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ID=59585801
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621486077.5U Active CN206431195U (en) | 2016-12-31 | 2016-12-31 | A kind of railway locomotive fixes shunt resistance current monitoring device with traction electric machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597080A (en) * | 2016-12-31 | 2017-04-26 | 中车太原机车车辆有限公司 | Traction motor fixed shunt resistor current monitoring device and method for railroad locomotive |
| CN109613430A (en) * | 2019-02-18 | 2019-04-12 | 内蒙古伊泰准东铁路有限责任公司 | Electric current determines method and device |
-
2016
- 2016-12-31 CN CN201621486077.5U patent/CN206431195U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597080A (en) * | 2016-12-31 | 2017-04-26 | 中车太原机车车辆有限公司 | Traction motor fixed shunt resistor current monitoring device and method for railroad locomotive |
| CN109613430A (en) * | 2019-02-18 | 2019-04-12 | 内蒙古伊泰准东铁路有限责任公司 | Electric current determines method and device |
| CN109613430B (en) * | 2019-02-18 | 2021-06-01 | 内蒙古伊泰准东铁路有限责任公司 | Current determination method and device |
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