CN209305368U - Pantograph control system - Google Patents
Pantograph control system Download PDFInfo
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- CN209305368U CN209305368U CN201821315255.7U CN201821315255U CN209305368U CN 209305368 U CN209305368 U CN 209305368U CN 201821315255 U CN201821315255 U CN 201821315255U CN 209305368 U CN209305368 U CN 209305368U
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Abstract
A kind of pantograph control system provided by the utility model, comprising: identification device, confirmation device and control device；Identification device includes controller, the first micro-control unit and wireless transmitting unit；Controller is connect with the input terminal of the first micro-control unit, and the first micro-control unit is connect with wireless transmitting unit；Confirm that device includes radio receiving unit, the second micro-control unit and driving unit；Radio receiving unit is connect with the input terminal of the second micro-control unit, the output end of second micro-control unit and the input terminal of driving unit connect, the output end of driving unit is connect with control device, to control the lifting of pantograph, it is not only convenient for operating, and saves manpower while avoiding operation error.
Description
Technical field
The utility model relates to field of track traffic more particularly to a kind of pantograph control systems.
Background technique
With the development of technology of track traffic, track train becomes the important vehicles of people's trip, pantograph conduct
The electric component of track train is track train from contact net acquisition electric energy, is that train subordinate inverter and traction invertor supply
The important electrical of electricity.In vehicle manufacture base after completing whole train assembling procedure, the time need to be bent to current collecting bow lifting
It is adjusted, guarantees that the rising bow of pantograph, drop bow are completed at the appointed time.
In the related technology, the button for operating pantograph is located in train operator room, controls the time adjustment of current collecting bow lifting
Where module is located at pantograph in compartment electrical cabinet, existing operation is that a people is located at drivers' cab, and button triggers hardware logic line
The lifting of pantograph is completed in road work；Another one timing personnel observe the time survey for carrying out current collecting bow lifting positioned at train exterior
Amount；There are also a triggering personnel, pantograph liter is adjusted according to the feedback of time survey crew in compartment where being located at pantograph
The time adjustment module of drop.
In existing scheme, since the button of operation pantograph is located in drivers' cab, not simply failing to movement is inconvenient to operate, and
And triggering personnel needs when current collecting bow lifting and timing personnel link up, and is easy to appear communication mistake and causes unnecessary operation
The problem of.
Utility model content
The utility model provides a kind of pantograph control system, to solve to control the button of current collecting bow lifting in the prior art
It is fixed on drivers' cab, is not easy to operate, and triggering personnel needs when current collecting bow lifting and timing personnel carry out cooperation communication, is held
Easily occur linking up the problem of mistake causes operation error.
The utility model provides a kind of pantograph control system, comprising:
Identification device, confirmation device and control device；
The identification device includes controller, the first micro-control unit and wireless transmitting unit；The controller and institute
The input terminal connection of the first micro-control unit is stated, first micro-control unit is connect with the wireless transmitting unit；
The confirmation device includes radio receiving unit, the second micro-control unit and driving unit；The wireless receiving
Unit is connect with the input terminal of second micro-control unit, the output end and the driving unit of second micro-control unit
Input terminal connection, the output end of the driving unit and the control connection；
When the controller generates trigger signal, the trigger signal is converted to control by first micro-control unit
Information, and the control information is emitted by the wireless transmitting unit, the wireless receiving of the confirmation device
Unit receives the control information, and the control information is sent to second micro-control unit and is converted, and obtains
Level signal is controlled, the control level signal is converted into control voltage, the control voltage is sent by the driving unit
To the control device, the control device controls the lifting of the pantograph.
In a kind of possible design, the trigger signal includes rising bow signal and drop bow signal.
In a kind of possible design, the control device includes solenoid valve.
In a kind of possible design, the pantograph solenoid valve is used for,
When the controller generates the drop bow signal, the electromagnetic valve gas circuit cut-off controls the pantograph landing.
In a kind of possible design, the pantograph solenoid valve is also used to,
When the controller generates the drop bow signal, the electromagnetic valve gas circuit cut-off controls the pantograph landing.
In a kind of possible design, the solenoid valve is fixed in the pantograph.
In a kind of possible design, touch screen is configured on the controller.
In a kind of possible design, button is configured on the controller.
In a kind of possible design, filter is fixed in the pantograph.
In a kind of possible design, pass through radio frequency transmission between the wireless transmitting unit and the radio receiving unit
It is wirelessly connected.
A kind of pantograph control system provided by the utility model, comprising: identification device, confirmation device and control dress
It sets；Identification device includes controller, the first micro-control unit and wireless transmitting unit；Controller and the first micro-control unit
Input terminal connection, the first micro-control unit are connect with wireless transmitting unit；Confirm that device includes radio receiving unit, the second micro-control
Unit and driving unit processed；Radio receiving unit is connect with the input terminal of the second micro-control unit, the second micro-control unit
The connection of the input terminal of output end and driving unit, the output end of driving unit are connect with control device；It generates and triggers in controller
When signal, trigger signal is converted to control information by the first micro-control unit, and will control information by wireless transmitting unit into
Row transmitting confirms that the radio receiving unit of device receives control information, and control information is sent to the second micro-control unit
It is converted, obtains control level signal, driving unit will control level signal and be converted into control voltage, and control voltage is sent
To control device, control device controls the lifting of pantograph.The control system of pantograph provided by the utility model is convenient for operation,
Manpower is not only saved, and avoids operation error.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram of pantograph provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram one of pantograph control system provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram two of pantograph control system provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram three of pantograph control system provided by the embodiment of the utility model.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, all other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
With the development of technology of track traffic, track train becomes the important vehicles of people's trip, pantograph conduct
The electric component of track train is track train from contact net acquisition electric energy, is that train subordinate inverter and traction invertor supply
The important electrical of electricity.
Usual pantograph is mounted on the roof of electric locomotive, electric vehicle by insulator, and single armed bow and both arms can be divided
Two kinds of bow, this programme is illustrated by taking the pantograph in Fig. 1 as an example, and Fig. 1 is pantograph provided by the embodiment of the utility model
Structural schematic diagram, as shown in Figure 1:
1- slide plate；
2- bracket；
3- balancing pole；
The upper frame of 4-；
5- hinge seat；
6- lower arm rod；
7- fanning strip；
8- trimmer valve；
9- drive cylinder；
10- piston；
11- drop bow spring；
12- connecting rod insulator；
13- slip ring；
14- connecting rod；
15- support insulator；
16- rising bow spring；
17- chassis；
18- push rod.
The working principle of pantograph is as follows:
When rising bow, through solenoid valve even into drive cylinder 9, cylinder piston 10 compresses in drive cylinder 9 compressed air
Drop bow 11 spring of bullet, rising bow spring 16 rotates lower arm rod 6 at this time, lifts frame 4 and slide plate 1, pantograph at the uniform velocity rises, and is connecing
There is one slowly to stagnate when adosculation line, then contacts contact line rapidly by obtaining current from contact line conducting wire and pass through roof bus
It is transmitted to intra-locomotive, is used for locomotive；When drop bow, compressed air is discharged rapidly towards greatly through pantograph trimmer valve 8 in drive cylinder 9
Gas, drop bow spring 11 act under, overcome the active force of rising bow spring 16, decline pantograph rapidly, disengage net, then by
Pantograph stops from contact line conducting wire by obtaining current.
Usually vehicle manufacture base complete whole train assembling procedure after, need to pantograph lifting bow time into
Row adjustment, to guarantee that the rising bow of pantograph, drop bow are completed before the deadline, due to the rising bow of pantograph, the time of drop bow
It is adjusted to fine adjustment, so needing the frequent operation for carrying out rising bow, drop bow.
Existing pantograph control system includes: control button, control circuit, solenoid valve and pantograph.Specific implementation
Process is: the control button for operating pantograph is located in train operator room, and the time adjustment module for controlling current collecting bow lifting is located at
Where pantograph in compartment electrical cabinet, existing operation is that a people is located at drivers' cab, control button trigger control circuit work from
And control the lifting that solenoid valve completes pantograph；Another one timing personnel observe positioned at train exterior and carry out current collecting bow lifting
Time measurement；There are also a triggering personnel, be located at compartment where pantograph, according to the feedback of time survey crew be adjusted by
The time adjustment module of pantograph lifting.
It follows that not simply failing to mobile not side since the button of operation pantograph is located in drivers' cab in existing scheme
Just it operates, and triggering personnel needs when current collecting bow lifting and timing personnel link up, is easy to appear communication mistake and causes not
The problem of necessary operation.
In view of the above-mentioned problems, the utility model provides a kind of pantograph control system, biography of the system based on wireless
The rising bow of pantograph and the signal of drop bow are sent, the operation of current collecting bow lifting bow is convenient for, not only saves manpower, and avoid
Operation error.
Fig. 2 is the structural schematic diagram one of pantograph control system provided by the embodiment of the utility model, as shown in Fig. 2, should
Pantograph control system 20 includes identification device 201, confirmation device 202 and control device 203.
Wherein, identification device 201 can be used for generating the control information of control pantograph, and will by wireless transmission form
The control information is sent to confirmation device 202, the i.e. identification device 201 transmitting terminal that can be the pantograph control system 20,
Here wireless transmission can be infrared, bluetooth, radio frequency etc., and this programme is without limitation, which can be located at
Outside train, so that the personnel for operating the identification device may not necessarily be confined in drivers' cab in the prior art.
Confirmation device 202 can be used for receiving the pantograph that identification module is sent by wireless and control information, i.e., should
Confirmation device 202 can be the receiving end of the pantograph control system, similarly, wireless transmission here can be infrared, bluetooth,
Radio frequency etc., this programme is without limitation, which can be located on train.
Control device 203 can be used for receiving the pantograph control information that confirmation device is sent, and according to the control information
The lifting of pantograph is controlled, optionally, control device 203 can be solenoid valve.
Fig. 3 is the structural schematic diagram two of pantograph control system provided by the embodiment of the utility model, as shown in figure 3, Fig. 2
In identification device 201 include controller 301, the first micro-control unit 302 and wireless transmitting unit 303.
Wherein, controller 301 is connect with the input terminal of the first micro-control unit 302, the first micro-control unit 301 with it is wireless
Transmitting unit 303 connects.
Optionally, controller 301 can be configured with touch screen, and each ginseng of trigger signal can be arranged on the touch screen
Number, including operating voltage, speed, contact pressure etc., speed can indicate pantograph in the speed for rising, landing, contact pressure
Indicate the contact pressure between contact net and pantograph.
It should be noted that being usually the smooth circulation for guaranteeing traction current, must there is one between pantograph and contact line
Fixed contact pressure can generate different degrees of upper since contact net itself is there are elastic difference under pantograph lifting effect
It rises, so that pantograph be made to generate up-down vibration in operation, pantograph is made to generate the relevant friendship up and down of quality with itself
The dynamic touch pressure of change.The contact pressure can intuitively reflect the contact situation between pantograph pan and contact line, it is necessary
Meet normal distribution law, fluctuates in a certain range.
Optionally, controller 301 can be configured with select button and ACK button, pre-configured difference pantograph
Parameter, the pantograph parameters being directly suitble to by button selection simultaneously pass through ACK button confirmation.
First micro-control unit 302 can be arm processor, and the trigger signal received can be converted into control letter
Breath, and the control information is emitted by wireless transmitting unit 303.
Wireless transmitting unit 303 is configured with antenna, can be omnidirectional antenna, directional aerial etc. optionally, which needs
Have preferable anti-interference and noise immunity, so that the control information of transmitting is not interfered by outside, wherein directional aerial definition
To show as certain angle range of radiation on figure in the horizontal direction, that is, it is usually described directional, in a communications system
It is remote to be generally used for communication distance, coverage area is small, and target density is big, the high environment of frequency efficiency.Omnidirectional antenna is defined as
Homogeneous radiation is shown as on figure in the horizontal direction, i.e., it is non-directional.The lobe width of signal is smaller under normal circumstances, and gain is got over
Greatly, it is close that it is normally applied distance in a communications system, coverage area is big, and price is relatively cheap.
Since directional aerial is when in use towards an angle, the anti-stop signal diffusion of energy in this way is strong in face of specified signal
Source, such applications distances are with regard to distant, and omnidirectional antenna signal is easy diffusion, it is not easy to and it concentrates, causes applications distances close, we
Case may be placed on outside train in view of identification device, with moving ahead for train, need to consider remote signal transmission,
Simultaneously it is also contemplated that controlling the quality of information, therefore need to comprehensively consider the two in practical application because usually selecting suitable day
Line, this programme are without limitation.
In addition, the confirmation device 202 in Fig. 2 includes radio receiving unit 304, the second micro-control unit 305 and driving
Unit 306.Radio receiving unit 304 is connect with the input terminal of the second micro-control unit 305, the second micro-control unit 305 it is defeated
Outlet is connect with the input terminal of driving unit 306, and the output end of driving unit 306 is connect with control device 203.Wherein, wirelessly
Receiving unit configuration 304 has antenna, the control information for being emitted by radio transceiver wireless transmitting unit, optionally,
Wireless transmission can be infrared, bluetooth, radio frequency etc., and this programme is without limitation.
The control information can also be sent to second micro-control unit 305 and carried out by the radio receiving unit 304
Conversion obtains control level signal, and second micro-control unit 305 is similar with the first microprocessing unit 302, can be ARM
Processor, the difference is that the first microprocessing unit 302 is that trigger signal is converted into control information, the second micro process list here
Member 305 is will to control information to be converted into control level signal, which can be a voltage signal.
But due to the voltage signal can not drive dynamic control device 203 work, the confirmation device 202 further include drive
Moving cell 306, the driving unit 306 can be a driving circuit, input to control level signal, export as drive magnetic valve
The voltage signal of work, it should be noted that driving circuit is usually located between main circuit and control circuit, is used to control electricity
The intermediate circuit that the signal on road amplifies, that is, be exactly to provide the works such as corresponding Current Voltage power for fixed load
Make environment, common driving circuit such as: LED drive circuit, motor-drive circuit, relay drive circuit, speaker drive
Circuit etc..
In the realization of the program, when controller 301 generates trigger signal, the first micro-control unit 302 believes triggering
Control information number is converted to, and control information is emitted by wireless transmitting unit, the wireless receiving list of confirmation device 202
Member 304 receives control information, and control information is sent to the second micro-control unit 305 and is converted, and obtains control level
Signal, driving unit 306 will control level signal and be converted into control voltage, and control voltage is sent to control device 203, is controlled
The lifting of the control pantograph of device 203.
It should be noted that the trigger signal occurred in this scenario, control information, control level signal and driving electricity
Pressure is all digital signal.
The control system of pantograph provided in this embodiment, comprising: identification device, confirmation device and control device；Know
Other device includes controller, the first micro-control unit and wireless transmitting unit；The input of controller and the first micro-control unit
End connection, the first micro-control unit are connect with wireless transmitting unit；Confirm that device includes radio receiving unit, the second microcontroller list
Member and driving unit；Radio receiving unit is connect with the input terminal of the second micro-control unit, the output of the second micro-control unit
End is connect with the input terminal of driving unit, and the output end of driving unit is connect with control device；Trigger signal is generated in controller
When, trigger signal is converted to control information by first micro-control unit, and will control information by wireless transmitting unit into
Row transmitting confirms that the radio receiving unit of device receives control information, and control information is sent to the second micro-control unit
It is converted, obtains control level signal, driving unit will control level signal and be converted into control voltage, and control voltage is sent
To control device, control device controls the lifting of pantograph, and the control system of pantograph provided by the utility model is convenient for operation,
Manpower is not only saved, and avoids operation error.
On the basis of the above embodiments, Fig. 4 is the structure of pantograph control system provided by the embodiment of the utility model
Schematic diagram two, as shown in figure 4, optionally, control device can be solenoid valve 307.
Solenoid valve 307 is connected with the output end of driving unit 306, and the output of driving unit 306 can be a driving
Voltage, the voltage can be mobile with drive magnetic valve 307.
Wherein, solenoid valve 307 is electromagnetically controlled industrial equipment, is the automatic foundamental element for controlling fluid,
Belong to actuator, however it is not limited to it is hydraulic, pneumatic, it is usually used to direction, the flow, speed that medium is adjusted in industrial control system
Degree and other parameters, solenoid valve can also cooperate different circuits to realize expected control, and the precision that controls and flexibly
Property can guarantee.
Common solenoid valve 307 has: check valve, safety valve, directional control valve etc..There is closed chamber in solenoid valve 307,
Different location is provided with through-hole, and each hole connects different oil pipes, is piston among chamber, and two sides is two blocks of electromagnet, passes through control
The movement of valve body opens or closes different outages, and fuel feed hole be it is normally opened, hydraulic oil will enter different oil extractions
Then pipe pushes the piston of oil cylinder by the pressure of oil, piston drives piston rod again, and piston rod drives mechanical device, in this way
Current switching by controlling electromagnet just controls mechanical movement regulating valve etc..
In the present solution, the trigger signal that controller 301 generates may include rising bow signal and drop bow signal, rising bow signal
It is the signal for controlling pantograph and rising, drop bow signal is the signal for controlling pantograph landing, which can configure touch screen
And/or button, optionally, be pre-configured with rising bow signal, drop bow signal parameters, such as: operating voltage, desin speed,
Contact pressure etc., then selected by select button, or the situ configuration parameters on touch screen.
Solenoid valve 307 in this programme can be fixed in pantograph, when the controller 301 generates the rising bow signal
When, 307 gas circuit of solenoid valve conducting controls the pantograph and rises, specifically, compressed air through solenoid valve 307 uniformly into
Enter drive cylinder, drop in cylinder piston compressed air bends spring, and rising bow spring rotates lower arm rod at this time, lift frame and
Slide plate, pantograph at the uniform velocity rise, and have one slowly to stagnate when close to contact line, then contact contact line rapidly；When the control
When device 301 generates drop bow signal, the cut-off of 307 gas circuit of solenoid valve, control pantograph landing, specifically, compression is empty in drive cylinder
Gas is discharged rapidly towards atmosphere through pantograph trimmer valve, under drop bow spring effect, overcomes the active force of rising bow spring, keeps pantograph fast
Speed decline, disengages net.
Optionally, pantograph can also configure filter, which is located at behind solenoid valve 307, when compressed air passes through
When solenoid valve 307 enters drive cylinder, dust and moisture in compressed air can be filtered out via filter, due to compressed air
In speed when may will affect the rising bow of pantograph, drop bow of dust and air, therefore use filter that can make by electricity
Bow speed contact according to expectation or can disengage net.
In the realization of the program, controller 301 is pre-configured with the parameters of pantograph rising bow, drop bow, it should be appreciated that no
Parameters with pantograph may be different, and after the parameter for choosing corresponding pantograph, generate rising bow signal or drop bow
Signal, and the rising bow signal or drop bow signal are sent to the first micro-control unit 302, the first microprocessing unit 402 is by the liter
Bow signal or drop bow signal are converted into control information, and the control information is carried out being transmitted to nothing by wireless transmitting unit 303
Line receiving unit 304, radio receiving unit receive 304 and the control information are sent to the second micro-control unit 305, the second micro-control
Unit 305 processed receives and the control information is converted into control level signal, then the control level signal is sent to driving list
Member 306, driving unit 306 is converted into control voltage to the control level signal, and the control voltage is sent to solenoid valve
307, the control voltage is for controlling the work of solenoid valve 307, so that pantograph is gone up and down.
It should be noted that the trigger signal occurred in this scenario, control information, control level signal and driving electricity
Pressure is all digital signal.
In the present solution, the operation of the lifting of entire pantograph can be made by the meter in existing technology using wireless transmission
When personnel complete, timing personnel can be located at train exterior, it can be seen that the place of pantograph, and oneself timing, and grasp
The problem of making controller, reduce operator, and avoiding since communication is improper, lead to operation error, needs exist for
Bright, the rising bow time for being pantograph of timing personnel's timing and drop bend the time, wherein the rising bow time can indicate pantograph
It contacting contact net and time from contact line conducting wire by obtaining current is short, the drop bow time can indicate that pantograph disengages net,
And stop from contact line conducting wire by the length of time of obtaining current.
The control system of pantograph provided in this embodiment, comprising: identification device, confirmation device and solenoid valve；Identification
Device includes controller, the first micro-control unit and wireless transmitting unit；The input terminal of controller and the first micro-control unit
Connection, the first micro-control unit are connect with wireless transmitting unit；Confirm that device includes radio receiving unit, the second micro-control unit
And driving unit；Radio receiving unit is connect with the input terminal of the second micro-control unit, the output end of the second micro-control unit
It is connect with the input terminal of driving unit, the output end of driving unit is connect with solenoid valve；When controller generates trigger signal, institute
It states the first micro-control unit and trigger signal is converted into control information, and control information is sent out by wireless transmitting unit
It penetrates, confirms that the radio receiving unit of device receives control information, and control information is sent to the second micro-control unit and is carried out
Conversion obtains control level signal, and driving unit will control level signal and be converted into control voltage, and control voltage is sent to electricity
Magnet valve, the lifting of solenoid valve control pantograph, the control system of pantograph provided by the utility model are not only saved convenient for operation
Manpower, and avoid operation error
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (8)
1. a kind of pantograph control system characterized by comprising
Identification device, confirmation device and control device；
The identification device includes controller, the first micro-control unit and wireless transmitting unit；The controller and described the
The input terminal of one micro-control unit connects, and first micro-control unit is connect with the wireless transmitting unit；
The confirmation device includes radio receiving unit, the second micro-control unit and driving unit；The radio receiving unit
It is connect with the input terminal of second micro-control unit, the output end of second micro-control unit is defeated with the driving unit
Enter end connection, the output end of the driving unit is connect with the control device；
When the controller generates trigger signal, the trigger signal is converted to control letter by first micro-control unit
Breath, and the control information is emitted by the wireless transmitting unit, the wireless receiving list of the confirmation device
Member receives the control information, and the control information is sent to second micro-control unit and is converted, and is controlled
The control level signal is converted into control voltage, the control voltage is sent to by level signal processed, the driving unit
The control device, the control device control the lifting of the pantograph.
2. system according to claim 1, which is characterized in that the trigger signal includes rising bow signal and drop bow signal.
3. system according to claim 1, which is characterized in that the control device includes solenoid valve.
4. system according to claim 3, which is characterized in that the solenoid valve is fixed in the pantograph.
5. system according to claim 1, which is characterized in that be configured with touch screen on the controller.
6. system according to claim 1, which is characterized in that be configured with button on the controller.
7. system according to claim 1, which is characterized in that be fixed with filter in the pantograph.
8. system according to claim 1, which is characterized in that the wireless transmitting unit and the radio receiving unit it
Between be wirelessly connected by radio frequency transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821315255.7U CN209305368U (en) | 2018-08-15 | 2018-08-15 | Pantograph control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821315255.7U CN209305368U (en) | 2018-08-15 | 2018-08-15 | Pantograph control system |
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| Publication Number | Publication Date |
|---|---|
| CN209305368U true CN209305368U (en) | 2019-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821315255.7U Active CN209305368U (en) | 2018-08-15 | 2018-08-15 | Pantograph control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069588A (en) * | 2021-11-08 | 2022-02-18 | 中车长春轨道客车股份有限公司 | Track traffic vehicle emergency pantograph-ascending pump external power supply control circuit |
-
2018
- 2018-08-15 CN CN201821315255.7U patent/CN209305368U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069588A (en) * | 2021-11-08 | 2022-02-18 | 中车长春轨道客车股份有限公司 | Track traffic vehicle emergency pantograph-ascending pump external power supply control circuit |
| CN114069588B (en) * | 2021-11-08 | 2024-03-08 | 中车长春轨道客车股份有限公司 | External power supply control circuit of emergency lift bow pump of rail transit vehicle |
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