CN103332120B - A kind of pantograph carrying static big electric current and bow thereof - Google Patents
A kind of pantograph carrying static big electric current and bow thereof Download PDFInfo
- Publication number
- CN103332120B CN103332120B CN201310278785.4A CN201310278785A CN103332120B CN 103332120 B CN103332120 B CN 103332120B CN 201310278785 A CN201310278785 A CN 201310278785A CN 103332120 B CN103332120 B CN 103332120B
- Authority
- CN
- China
- Prior art keywords
- slide plate
- electric current
- water conservancy
- conservancy diversion
- pantograph
- Prior art date
- 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.)
- Active
Links
Landscapes
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention discloses a kind of pantograph collector head carrying static big electric current, including the water conservancy diversion bracing frame can being connected with pantograph upper arm and the polylith slide plate being arranged side by side on described water conservancy diversion bracing frame, and described slide plate is powder shaped charge liner.Its static water conservancy diversion density of slide plate made by powdered metallurgical material is significantly larger than the static water conservancy diversion density of current carbon slipper, it can carry transient high-current, and the resistivity of powdered metallurgical material itself is relatively low, and it is less with the contact resistance of contact net, so that the temperature rise between powder shaped charge liner and contact net is less, it is not result in contact point overheated and comes in contact the supply line tensile strength of net and decline or occur between bow net the phenomenon of sintering, as can be seen here, the pantograph collector head of the static big electric current of carrying provided by the present invention can meet the demand of the instantaneous charging of energy storage type rail vehicle.The present invention also discloses the pantograph of a kind of static big electric current of carrying with above-mentioned pantograph collector head.
Description
Technical field
The present invention relates to track traffic part design manufacturing technology field, particularly relate to a kind of carrying
The pantograph of static big electric current and its bow.
Background technology
Pantograph is that electrically-driven car obtains the electrical equipment of electric energy from contact net, and it is arranged on
On locomotive or motor-car roof, by slide plate, upper frame, lower arm rod, underframe, rising bow spring,
The parts such as transmission cylinder, support insulator are constituted.
Pantograph collector head is positioned at the top of whole pantograph, mainly by arch head bracket be arranged on
On arch head bracket two pieces are perpendicular to the slide plate composition that contact line conducting wire is arranged, described two pieces of slide plates
Interval is arranged, and its middle slide plate, for directly contacting with contact net, collects electric current；Current
The commonly used supply of electric power mode of electric tractor is dynamic power, and i.e. electric tractor is in fortune
Driving electric required during Dong is to be obtained from contact net continuously by pantograph
Take, thus in order to preferably improve the service life of contact net lines, current slide plate mainly uses
The carbon slipper that its rigidity is relatively low, only has portion of secondary auxiliary system to be in out when static state due to locomotive
Open state, thus require that the electric current acquired in pantograph is less.
Along with the development of society, the Urban Rail Transit Development theory such as energy-saving and environmental protection constantly promotes,
Energy storage type rail vehicle arises at the historic moment, and so-called energy storage type rail vehicle refers to that electrically-driven car makes
Electric energy is stored with super capacitor, and in the time of utilize that passenger gets on or off the bus at platform tens seconds
Being rapidly completed charging, once charging may insure that energy storage type rail vehicle runs to enter to the next stop again
Row charging, it can be seen that, energy storage type rail vehicle requires that pantograph obtained within tens second time
A large amount of electric energy, and provide for electrically-driven car when current pantograph is only capable of meeting dynamic power
Relatively small electric current, it is impossible to meet energy storage type rail vehicle and obtain when stopping big in the short time
The demand of amount electric energy.
Therefore it provides a kind of pantograph collector head that can obtain big electric current when static state is current basis
Skilled person needs badly and solves the technical problem that.
Summary of the invention
An object of the present invention is to provide a kind of pantograph collector head carrying static big electric current,
Collecting the demand of a large amount of electric energy of taking at short notice meeting energy storage type rail vehicle, the present invention's is another
One purpose is to provide a kind of pantograph with above-mentioned bow.
For solving above-mentioned prior art problem, being subject to of the static big electric current of carrying provided by the present invention
Pantograph bow, including the water conservancy diversion bracing frame can being connected with pantograph upper arm be arranged side by side in described
Polylith slide plate on water conservancy diversion bracing frame, and described slide plate is powder shaped charge liner.
Preferably, in the pantograph collector head of the static big electric current of above-mentioned carrying, described slide plate passes through
Bolt is fixing with described water conservancy diversion bracing frame to be connected.
Preferably, in the pantograph collector head of the static big electric current of above-mentioned carrying, described bolt is copper
Matter bolt.
Preferably, in the pantograph collector head of the static big electric current of above-mentioned carrying, described water conservancy diversion supports
Being provided with bolt on frame and pass through hole, described slide plate is set by the position that hole is corresponding with described bolt
Being equipped with screwed hole, described bolt is passed through hole by the bottom of described water conservancy diversion bracing frame through described bolt
And tighten with the screwed hole on described slide plate.
Preferably, in the pantograph collector head of the static big electric current of above-mentioned carrying, described bolt and institute
State and be additionally provided with spring pad between water conservancy diversion bracing frame.
Preferably, in the pantograph collector head of the static big electric current of above-mentioned carrying, described slide plate and institute
State and be additionally provided with conductive paste layer between water conservancy diversion bracing frame.
Preferably, in the pantograph collector head of the static big electric current of above-mentioned carrying, the two of arbitrary neighborhood
Spacing between individual slide plate is the most equal.
Preferably, in the pantograph collector head of the static big electric current of above-mentioned carrying, described slide plate includes
After being arranged at the leading section slide plate of described water conservancy diversion supporting framing front end and being arranged at described water conservancy diversion bracing frame
The rearward end slide plate of end, and be arranged at described leading section slide plate and described rearward end slide plate it
Between middle slide plate.
Preferably, in the pantograph collector head of the static big electric current of above-mentioned carrying, described water conservancy diversion supports
Frame is stainless steel diversion bracing frame.
The pantograph of the static big electric current of carrying that disclosed in this invention includes pantograph collector head, and
And the pantograph bow that described pantograph collector head is the as above static big electric current of carrying described in any one
Head.
Can be drawn by above technical scheme, being subject to of the static big electric current of carrying provided by the present invention
Pantograph bow includes water conservancy diversion bracing frame and the polylith slide plate being fixedly installed on water conservancy diversion bracing frame, its
Middle slide plate is for directly contacting with the supply lines in contact net, and the slide plate in the present invention is
Powder shaped charge liner.
Owing to energy storage type rail vehicle requires locomotive under quiescent conditions, the most fast
Speed the energy storage device in car is charged, this be accomplished by pantograph collector head can bear instantaneous greatly
The impact of electric current；Its static water conservancy diversion density of slide plate made by powdered metallurgical material is long-range
In the static water conservancy diversion density of current carbon slipper, thus it can carry transient high-current, and powder
The resistivity of powder metallurgy material itself is relatively low, and it is less with the contact resistance of contact net, thus
Make the temperature rise between powder shaped charge liner and contact net less, be not result in contact point mistake
Heat and come in contact the supply line tensile strength of net and decline or showing of sintering occurs between bow net
As, it can be seen that, the pantograph collector head of the static big electric current of carrying provided by the present invention can be expired
The demand of the foot instantaneous charging of energy storage type rail vehicle.
Accompanying drawing explanation
The master of the pantograph collector head of the static big electric current of carrying that Fig. 1 is provided by the embodiment of the present invention
Depending on schematic diagram；
Fig. 2 is the side-looking signal of the pantograph collector head of the static big electric current of the carrying provided in Fig. 1
Figure；
Fig. 3 is the vertical view signal of the pantograph collector head of the static big electric current of the carrying provided in Fig. 1
Figure.
Detailed description of the invention
One of core purpose of the present invention is to provide a kind of pantograph carrying static big electric current
Bow, on this pantograph collector head, the polylith powder metallurgy slide plate by being arranged side by side meets energy storage type
The demand that the rail vehicle short time charges rapidly, another object of the present invention also resides in offer simultaneously
A kind of pantograph of the big electric current of carried of static state with above-mentioned pantograph collector head.
In order to make those skilled in the art be more fully understood that the solution of the present invention, below in conjunction with attached
The present invention is described in further detail with detailed description of the invention for figure.
Understanding technical scheme incorporated by reference to Fig. 1 to Fig. 3, wherein Fig. 1 is this
The schematic front view of the pantograph collector head of the static big electric current of carrying that inventive embodiments is provided, figure
2 is the schematic side view of the pantograph collector head of the static big electric current of the carrying provided in Fig. 1, Fig. 3
Schematic top plan view for the pantograph collector head of the static big electric current of the carrying provided in Fig. 1.
Firstly the need of illustrating, the noun of locality in present specification, " bottom ", refer to
Lower end in Fig. 2, " rear end " and " front end " refers to the left end in Fig. 2 and right-hand member respectively；Ability
Field technique personnel it is readily understood that, the appearance of these nouns of locality is with Figure of description as base
Accurate and set up, their appearance should not constitute limiting the scope of the invention.
The pantograph collector head of the static big electric current of carrying provided by the present invention is particularly suited for energy storage
Formula rail vehicle, specifically include water conservancy diversion bracing frame 3 and slide plate 1, wherein water conservancy diversion bracing frame 3
Bottom is provided with the installation portion 4 for being connected with pantograph upper arm, and pantograph upper arm can drive
Water conservancy diversion bracing frame 3 carries out rising and down maneuver, and water conservancy diversion bracing frame 3 specifically can use corrosion-resistant
Stainless steel, slide plate 1 includes polylith, and polylith slide plate 1 is fixedly installed on the most side by side
On water conservancy diversion bracing frame 3, the setting direction of its middle slide plate 1 is vertical with the traffic direction of vehicle, this
The core improvement of the pantograph collector head of the static big electric current of carrying provided in embodiment is,
The polylith slide plate 1 being arranged on water conservancy diversion bracing frame 3 is the smelting that powdered metallurgical material is fired
Gold slide plate.
Owing to energy storage type rail vehicle requires locomotive under quiescent conditions, the most fast
Speed the energy storage device in car is charged, this be accomplished by pantograph collector head can bear instantaneous greatly
The impact of electric current；Its static water conservancy diversion density of slide plate made by powdered metallurgical material is long-range
In the static water conservancy diversion density of current carbon slipper, thus it can carry transient high-current, powder smelting
The resistivity of gold copper-base alloy itself is relatively low, and it is less with the contact resistance of contact net, so that
Temperature rise between powder shaped charge liner and contact net is less, be not result in contact point overheated and
The supply line's tensile strength coming in contact net declines or occurs the phenomenon of sintering between bow net,
As can be seen here, the pantograph collector head of the static big electric current of carrying provided by the present invention can meet storage
The demand of the energy instantaneous charging of formula rail vehicle.
Label L in accompanying drawing is that the pantograph collector head after being completed is gone up in the vehicle width direction
Length, D is pantograph collector head thickness in vehicle-height direction, and W is pantograph collector head
Width in vehicle forward direction, H is monolithic slide plate width in vehicle forward direction,
G is the interval between adjacent two pieces of slide plates.
Skilled addressee readily understands that is that pantograph collector head is gone up in the vehicle width direction
Length L can carry out flexible design according to the requirement of the stagger of contact net and vehicle boundary,
Meanwhile, the monolithic slide plate 1 width H in vehicle forward direction, and required for slide plate 1
Particular number can also be wanted according to the charging current of energy storage type rail vehicle and charging interval
The difference asked and adjust flexibly.
The pantograph collector head of the static big electric current of carrying provided in the present embodiment, its slide plate 1 is
It is fixedly connected on water conservancy diversion bracing frame 3 by bolt 5, when pantograph works, on bow
Slide plate 1 contact with the supply lines on contact net, electric current is propped up by slide plate 1 and water conservancy diversion
Connect with channelizing line after support 3, thus provide electric energy for rail locomotive.
When slide plate 1 contacts with the supply lines on contact net, abrasion may be contacted to being used for
On the bolt 5 of fixed glides 1, in order to avoid the supply lines on contact net is caused damage by bolt 5
Evil, the bolt 5 in the present embodiment preferably uses copper bolt, it is more preferred to pyrite spiral shell
Bolt, the hardness of pyrite is relatively low, therefore can be prevented effectively from and the supply lines on contact net is caused damage
Evil.
More specifically, the water conservancy diversion bracing frame 3 provided in the present embodiment is provided with bolt to lead to
Via, slide plate 1 is provided with screwed hole with bolt by the position that hole is corresponding, certainly, and spiral shell
Bolt can be that unthreaded hole can also be for screwed hole by hole, and bolt 5 is by the bottom of water conservancy diversion bracing frame 3
Screw with the screwed hole on slide plate 1 after bolt hole, thus slide plate 1 is fixedly mounted
On water conservancy diversion bracing frame 3.
In order to optimize the technical scheme in above-described embodiment further, it is to avoid bolt 5 was running
Occurring in journey loosening, the pantograph collector head of the static big electric current of carrying in the present embodiment is also at bolt
Spring pad 6 it is provided with, certainly, in order to avoid bolt 5 is to water conservancy diversion between 5 and water conservancy diversion bracing frame 3
Bracing frame 3 causes damage, it is also possible to be further added by one between spring pad 6 and water conservancy diversion bracing frame 3
Individual plain cushion, to eliminate the damage that water conservancy diversion bracing frame 3 surface is caused in disassembly process by bolt 5
Bad.
Actually after slide plate 1 is fixedly mounted on water conservancy diversion bracing frame 3, slide plate 1 and water conservancy diversion
Often there is also installation gap between bracing frame 3, and these are installed gap and transport at rail vehicle
Having substantial amounts of impurity during row to enter, this will increase the internal resistance of bow, cause
Bow temperature rise is excessive, has influence on the current capacity of bow, and is unfavorable for pantograph and contact net
Safe operation, to this end, also at the installation seam of slide plate 1 with water conservancy diversion bracing frame 3 in the present embodiment
Conductive paste layer 2 it is provided with, to fill the installation between slide plate 1 and water conservancy diversion bracing frame 3 between gap
Gap, it is to avoid the entrance of impurity, thus reduce bow internal resistance, improve bow current capacity,
Reduce temperature rise.
The arbitrary neighborhood of the pantograph collector head of the static big electric current of carrying provided in the present embodiment
Spacing between two slide plates 1 is the most equal, and includes being arranged at water conservancy diversion bracing frame 3 front end
Leading section slide plate, is arranged at the rearward end slide plate of water conservancy diversion bracing frame 3 rear end and is arranged at front end
Middle slide plate between portion's slide plate and rearward end slide plate, the number of middle slide plate can be one
Individual or multiple, concrete quantity should have according to the need for electricity of rail vehicle and charging interval
Body determines, the pantograph collector head provided in the present embodiment is provided with two pieces of middle slide plates, and
And centre slide plate is consistent with the specification of leading section slide plate, rearward end slide plate, a length of
420mm, width is 25mm, and the gap between two adjacent slide plates 1 is 3mm,
Therefore length L that the pantograph collector head being assembled into is gone up in the vehicle width direction is 420mm, along car
Width W in direction of advance is 109mm.
The embodiment of the present invention also discloses a kind of pantograph carrying static big electric current simultaneously, should
Bow in pantograph is the pantograph collector head of the static big electric current of above-mentioned carrying.
Due to the above-mentioned bow used, thus this pantograph can meet energy storage type rail vehicle and exist
The demand of a large amount of electric energy is obtained in short time.
Principle and the embodiment of the present invention are set forth by specific case used herein,
The explanation of above example is only intended to help to understand method and the core concept thereof of the present invention.Should
When pointing out, for those skilled in the art, without departing from the principle of the invention
On the premise of, it is also possible to the present invention is carried out some improvement and modification, and these improve and modify also
Fall in the protection domain of the claims in the present invention.
Claims (9)
1. carry a pantograph collector head for static big electric current, including the water conservancy diversion can being connected with pantograph upper arm
Bracing frame (3) and the polylith slide plate (1) being arranged side by side on described water conservancy diversion bracing frame (3), its feature
Being, described slide plate (1) is powder shaped charge liner, and described water conservancy diversion bracing frame (3) is that rustless steel is led
Stream bracing frame.
The pantograph collector head of the static big electric current of carrying the most according to claim 1, it is characterised in that
Described slide plate (1) is connected by bolt (5) and described water conservancy diversion bracing frame (3) are fixing.
The pantograph collector head of the static big electric current of carrying the most according to claim 2, it is characterised in that
Described bolt (5) is copper bolt.
The pantograph collector head of the static big electric current of carrying the most according to claim 2, it is characterised in that
Being provided with bolt on described water conservancy diversion bracing frame (3) and pass through hole, described slide plate (1) passes through with described bolt
Corresponding position, hole is provided with screwed hole, and described bolt (5) is by under described water conservancy diversion bracing frame (3)
Portion is screwed through described bolt by the screwed hole on slide plate described in Kong Bingyu (1).
The pantograph collector head of the static big electric current of carrying the most according to claim 4, it is characterised in that
Spring pad (6) it is additionally provided with between described bolt (5) and described water conservancy diversion bracing frame (3).
The pantograph collector head of the static big electric current of carrying the most according to claim 1, it is characterised in that
Conductive paste layer (2) it is additionally provided with between described slide plate (1) and described water conservancy diversion bracing frame (3).
The pantograph collector head of the static big electric current of carrying the most according to claim 1, it is characterised in that
Spacing between two slide plates (1) of arbitrary neighborhood is the most equal.
The pantograph collector head of the static big electric current of carrying the most according to claim 7, it is characterised in that
Described slide plate (1) includes the leading section slide plate being arranged at described water conservancy diversion bracing frame (3) front end and is arranged at
The rearward end slide plate of described water conservancy diversion bracing frame (3) rearward end, and it is arranged at described leading section slide plate and institute
State the middle slide plate between rearward end slide plate.
9. carry a pantograph for static big electric current, including pantograph collector head, it is characterised in that described
Pantograph collector head is the pantograph collector head of the static big electric current of the carrying as described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310278785.4A CN103332120B (en) | 2013-07-04 | 2013-07-04 | A kind of pantograph carrying static big electric current and bow thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310278785.4A CN103332120B (en) | 2013-07-04 | 2013-07-04 | A kind of pantograph carrying static big electric current and bow thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103332120A CN103332120A (en) | 2013-10-02 |
| CN103332120B true CN103332120B (en) | 2016-08-24 |
Family
ID=49240354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310278785.4A Active CN103332120B (en) | 2013-07-04 | 2013-07-04 | A kind of pantograph carrying static big electric current and bow thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103332120B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109367393B (en) * | 2018-11-16 | 2021-08-27 | 贾凤斌 | Multi-contact line multiphase rectifying and alternating reversing pantograph |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041135A (en) * | 1988-09-16 | 1990-04-11 | 长春市粉末冶金厂 | Trolley bus collector-block produced via iron-based powder metallurgy |
| JPH07193904A (en) * | 1993-12-28 | 1995-07-28 | Nippon Light Metal Co Ltd | Fixing structure for slider |
| JPH09182202A (en) * | 1995-12-25 | 1997-07-11 | Toyo Electric Mfg Co Ltd | Current collecting boat of collector for railway vehicle |
| JPH10285703A (en) * | 1997-03-31 | 1998-10-23 | Toyo Tanso Kk | Collector head body for electric vehicle |
| RU2004102740A (en) * | 2004-02-03 | 2005-07-10 | Владислав Валентинович Берент (RU) | SURFACE ELEMENT OF SUSTAINABLE STATIONS OF ROLLING STOCK |
| CN201317279Y (en) * | 2008-12-16 | 2009-09-30 | 山东大学 | Novel high-speed train pantograph slide plate |
| CN102126437A (en) * | 2010-01-20 | 2011-07-20 | 上海摩根碳制品有限公司 | Pantograph pan and production method thereof |
| CN103057423A (en) * | 2013-01-28 | 2013-04-24 | 辽宁工程技术大学 | Pantograph head structure capable of reducing offline rate of pantograph-contact line of electric locomotive |
| CN203331857U (en) * | 2013-07-04 | 2013-12-11 | 南车株洲电力机车有限公司 | Bow pantograph capable of bearing large static currents and pantograph bow thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4004172B2 (en) * | 1999-02-02 | 2007-11-07 | 株式会社ショーワ | Upper cap of direct acting pantograph device |
-
2013
- 2013-07-04 CN CN201310278785.4A patent/CN103332120B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041135A (en) * | 1988-09-16 | 1990-04-11 | 长春市粉末冶金厂 | Trolley bus collector-block produced via iron-based powder metallurgy |
| JPH07193904A (en) * | 1993-12-28 | 1995-07-28 | Nippon Light Metal Co Ltd | Fixing structure for slider |
| JPH09182202A (en) * | 1995-12-25 | 1997-07-11 | Toyo Electric Mfg Co Ltd | Current collecting boat of collector for railway vehicle |
| JPH10285703A (en) * | 1997-03-31 | 1998-10-23 | Toyo Tanso Kk | Collector head body for electric vehicle |
| RU2004102740A (en) * | 2004-02-03 | 2005-07-10 | Владислав Валентинович Берент (RU) | SURFACE ELEMENT OF SUSTAINABLE STATIONS OF ROLLING STOCK |
| CN201317279Y (en) * | 2008-12-16 | 2009-09-30 | 山东大学 | Novel high-speed train pantograph slide plate |
| CN102126437A (en) * | 2010-01-20 | 2011-07-20 | 上海摩根碳制品有限公司 | Pantograph pan and production method thereof |
| CN103057423A (en) * | 2013-01-28 | 2013-04-24 | 辽宁工程技术大学 | Pantograph head structure capable of reducing offline rate of pantograph-contact line of electric locomotive |
| CN203331857U (en) * | 2013-07-04 | 2013-12-11 | 南车株洲电力机车有限公司 | Bow pantograph capable of bearing large static currents and pantograph bow thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103332120A (en) | 2013-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204586529U (en) | Electrodynamic type single armed is two by stream pantograph | |
| CN202623959U (en) | Power supply device for electrified expressway | |
| CN206031089U (en) | A regeneration energy absorption energy memory for tractor -trailer train | |
| CN106347135A (en) | Insulating double-boot side contact current collector | |
| CN102700434A (en) | Power supply device for electrified expressway | |
| JP2021536222A (en) | Electric vehicle and corresponding road contact power supply | |
| CN201841973U (en) | Assembling and mounting structure of DC 1500 V overhead contact line and return current rail | |
| CN103332120B (en) | A kind of pantograph carrying static big electric current and bow thereof | |
| CN110329078A (en) | A kind of pantograph collector head structure reducing bullet train bow net ratio of contact loss | |
| CN203331857U (en) | Bow pantograph capable of bearing large static currents and pantograph bow thereof | |
| CN103594669A (en) | Double-deck storage battery box body | |
| CN206664694U (en) | A kind of automobile front longitudinal beam assembly | |
| CN204669048U (en) | Super capacitor trolley bus quick charge structure | |
| CN106183896B (en) | The ground power supply system of super capacitor energy-storage type tramcar | |
| CN106809025B (en) | Braking recovery system, the control centre for train scheduling and the method for train | |
| CN104890536B (en) | A kind of multi-electrode conductor rail and electric supply installation | |
| CN208149314U (en) | A kind of electric locomotive traction system | |
| JP2015107699A (en) | Dc power supply system | |
| CN209515820U (en) | A kind of automotive battery box | |
| CN208036008U (en) | Conductor rail and the track with it and sit-astride Rail Transit System | |
| CN203645387U (en) | Rail transport voltage balancing device | |
| JP6317179B2 (en) | Current collection system for railway vehicles | |
| CN102233831A (en) | Charging device at bottom of electric vehicle | |
| CN2671865Y (en) | Steel aluminium composite conductive rail device | |
| CN206394447U (en) | Pantagraph current collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |