CN105788913B - A kind of opening device of storage battery power engineering truck high-tension apparatus cabinet door - Google Patents
A kind of opening device of storage battery power engineering truck high-tension apparatus cabinet door Download PDFInfo
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- CN105788913B CN105788913B CN201610332873.1A CN201610332873A CN105788913B CN 105788913 B CN105788913 B CN 105788913B CN 201610332873 A CN201610332873 A CN 201610332873A CN 105788913 B CN105788913 B CN 105788913B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
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- Lock And Its Accessories (AREA)
Abstract
The application provides a kind of opening device of storage battery power engineering truck high-tension apparatus cabinet door, through level-one safety interlocking key in the case where the external high pressure dump of storage battery power engineering truck, drivers' cab controller is turned off position, is unlocked；It is locked when opening the protective door of traction accumulator disconnecting switch by the door lock of protective door；Traction accumulator disconnecting switch is turned off position by secondary safety chain key A, and is unlocked；High-pressure system earthing switch is placed in ground connection position by secondary safety chain key B, and is unlocked；High-voltage safety key case releases the locking combined for three-level safety interlocking key in the case where locking the chain key A of secondary safety and the chain key B of secondary safety；And then the combination of three-level safety interlocking key is obtained, it is able to open corresponding high-tension apparatus cabinet door with the combination of three-level safety interlocking key.By the above-mentioned high voltage safe cross-linked mode with logic, security risk existing in the prior art is avoided.
Description
Technical field
The present invention relates to storage battery power engineering truck technical fields more particularly to a kind of storage battery power engineering truck high pressure to set
The opening device of standby cabinet door.
Background technique
There are mainly two types of power supply modes for current storage battery power engineering truck: pantograph (or third rail current-collector) power supply,
And traction accumulator power supply.When pantograph drop bow (or current-collector is detached from third rail) stops powering to storage battery power engineering truck
When, it can also be storage battery power engineering truck power supply by traction accumulator；Even if therefore storage battery power engineering truck is completely cut through
External power supply, however it remains high voltage power supply, this is the difference for having essence with traditional electric locomotive, city rail vehicle.For having
The storage battery power engineering truck of two kinds of high voltage supply modes, when its high-tension apparatus is safeguarded, overhauled, it is ensured that high-tension apparatus
Between realize safety interlocking it is particularly important.
Storage battery power engineering truck is artificially controlled the maintenance safety of high-tension apparatus, detailed process by service personnel at present are as follows:
Driver's key pantograph drop bow (or current-collector is detached from third rail) is taken out first, and traction accumulator disconnecting switch is placed in and " is disconnected
Cutting traction accumulator power supply in position " is placed in high-pressure system earthing switch " ground connection position ", then open the cabinet door of high-tension apparatus into
Row maintenance, maintenance, the safety interlocking function of whole process not in logic can only rely on the careful operation of service personnel；Therefore,
Since entire high-pressure system does not form the high voltage safe cross-linked mode with logic, there are following security risks:
1), pantograph does not drop bow (or current-collector is not detached from third rail) or no disconnected traction accumulator power supply or does not have
High-pressure system ground switch earthing, the cabinet door for opening high-tension apparatus is safeguarded, is overhauled, and there are high-voltage electricity to cause personal accident
The danger of accident.
2), after being safeguarded, being overhauled to high-tension apparatus, the ground connection of high-pressure system earthing switch is not released, closure is led
Draw battery feed or rise pantograph (or current collector contact third rail) power supply, there are high-pressure system shorted to earth, causes to set
The danger of standby damage and personal accident accident.
Summary of the invention
In view of this, the present invention provides a kind of opening device of storage battery power engineering truck high-tension apparatus cabinet door, with solution
The problem of security risk certainly exists in the prior art.
To achieve the goals above, technical solution provided in an embodiment of the present invention is as follows:
A kind of opening device of storage battery power engineering truck high-tension apparatus cabinet door is applied to storage battery power engineering truck, institute
Storage battery power engineering truck is stated to include: drivers' cab controller, high-pressure system earthing switch, at least one high-tension apparatus cabinet door and lead
Draw battery disconnecting switch and its protective door；The opening device of the storage battery power engineering truck high-tension apparatus cabinet door includes: one
The chain key A of the chain key of level security, secondary safety, the chain key B of secondary safety, high-voltage safety key case and at least one
The combination of three-level safety interlocking key；Wherein:
The level-one safety interlocking key is used for the feelings in the external high pressure dump of the storage battery power engineering truck
Under condition, the drivers' cab controller is turned off position, and after the drivers' cab controller is turned off position, by the driver
Room controller unlocks；And the level-one safety interlocking key is in the protective door for opening the traction accumulator disconnecting switch
When by the protective door door lock lock；
The chain key A of secondary safety is used to the traction accumulator disconnecting switch being turned off position, and described
After traction accumulator disconnecting switch is turned off position, unlocked by the traction accumulator disconnecting switch；
The chain key B of secondary safety is used to for the high-pressure system earthing switch to be placed in ground connection position, and in the height
After pressure system earth switch is placed in ground connection position, unlocked by the high-pressure system earthing switch；
The high-voltage safety key case is used in the chain key A of the secondary safety and the chain key B of the secondary safety
In the case where locked, the locking combined for the three-level safety interlocking key is released；
The three-level safety interlocking set of keys is shared in after being unlocked by the high-voltage safety key case, is opened and is corresponded to
The high-tension apparatus cabinet door.
Preferably, the three-level safety interlocking key combination includes the first key, the second key and key chain；Wherein:
First key is used to be locked or be unlocked by the high-voltage safety key case；
Second key is used to open the corresponding high-tension apparatus cabinet door；
The key chain is for connecting first key and second key.
Preferably, second key is the special of the compression door lock of opening High-Voltage Electrical Appliances cabinet and main convertor cabinet cabinet door
Shape key.
Preferably, the safety interlocking key of different stage has different marks.
Preferably, the high-voltage safety key case is also used to combine locked situation in the three-level safety interlocking key
Under, release the locking of key A chain for the secondary safety and the chain key B of the secondary safety.
Preferably, the chain key A of the secondary safety is also used to the traction accumulator disconnecting switch being placed in working position,
And after the traction accumulator disconnecting switch is placed in working position, locked by the traction accumulator disconnecting switch；
The chain key B of secondary safety is also used to the high-pressure system earthing switch being placed in working position, and described
After high-pressure system earthing switch is placed in working position, locked by the high-pressure system earthing switch.
Preferably, the level-one safety interlocking key is also used to close the protective door of the traction accumulator disconnecting switch,
And it is locked after closing the protective door by the door-lock-release of the protective door；And for the drivers' cab controller to be set
In working position, and after the drivers' cab controller is placed in working position, locked by the drivers' cab controller.
The application provides a kind of opening device of storage battery power engineering truck high-tension apparatus cabinet door, passes through level-one safety interlocking
Key is turned off position in the case where the external high pressure dump of storage battery power engineering truck, by drivers' cab controller, and
After the drivers' cab controller is turned off position, unlocked by the drivers' cab controller；With open traction accumulator
It is locked when the protective door of disconnecting switch by the door lock of the protective door；The traction is stored by secondary safety chain key A again
Battery disconnector is turned off position, and is unlocked by the traction accumulator disconnecting switch；By the chain key B of secondary safety
The high-pressure system earthing switch is placed in ground connection position, and is unlocked by the high-pressure system earthing switch；Then pass through height
It presses Safe key box in the case where the chain key A of the secondary safety and chain key B of the secondary safety is locked, releases
For the locking of three-level safety interlocking key combination；And then the three-level safety interlocking key combination is obtained, it is able to described three
The corresponding high-tension apparatus cabinet door is opened in the chain key combination of level security.Pass through the above-mentioned high voltage safe cross-linked side with logic
Formula avoids security risk existing in the prior art.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of knot of the opening device of storage battery power engineering truck high-tension apparatus cabinet door provided by the embodiments of the present application
Structure schematic diagram；
Fig. 2 is the structural schematic diagram for the three-level safety interlocking key combination that another embodiment of the application provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of opening devices of storage battery power engineering truck high-tension apparatus cabinet door, to solve the prior art
In there are problems that security risk.
Specifically, the opening device of the storage battery power engineering truck high-tension apparatus cabinet door, is applied to battery power work
Journey vehicle, the storage battery power engineering truck include: drivers' cab controller, high-pressure system earthing switch, at least one high-tension apparatus
Cabinet door and traction accumulator disconnecting switch and its protective door.
The opening device of the storage battery power engineering truck high-tension apparatus cabinet door includes: level-one safety interlocking key, second level
The chain key B of safety interlocking key A, secondary safety, high-voltage safety key case and at least one three-level safety interlocking set of keys
It closes；Wherein:
The level-one safety interlocking key is used for the feelings in the external high pressure dump of the storage battery power engineering truck
Under condition, the drivers' cab controller is turned off position, and after the drivers' cab controller is turned off position, by the driver
Room controller unlocks；And the level-one safety interlocking key is in the protective door for opening the traction accumulator disconnecting switch
When by the protective door door lock lock；
In specific practical application, the process of the external high pressure dump are as follows: pantograph drop bow (or current-collector is de-
From third rail), the main circuit breaker that the storage battery power engineering truck receives external power supply disconnects.
The chain key A of secondary safety is used to the traction accumulator disconnecting switch being turned off position, and described
After traction accumulator disconnecting switch is turned off position, unlocked by the traction accumulator disconnecting switch；
The chain key B of secondary safety is used to for the high-pressure system earthing switch to be placed in ground connection position, and in the height
After pressure system earth switch is placed in ground connection position, unlocked by the high-pressure system earthing switch；
The high-voltage safety key case is used in the chain key A of the secondary safety and the chain key B of the secondary safety
In the case where locked, the locking combined for the three-level safety interlocking key is released；
The three-level safety interlocking set of keys is shared in after being unlocked by the high-voltage safety key case, is opened and is corresponded to
The high-tension apparatus cabinet door.
Specific working principle are as follows:
Shown in referring to Fig.1, level-one safety interlocking key 101 can be placed in the drivers' cab controller and the traction
In the door lock 200 of the protective door of battery disconnecting switch.Also, when level-one safety interlocking key 101 controls the drivers' cab department
When device is placed in working position, is locked, can not take out by the drivers' cab controller；Only the drivers' cab controller is turned off
It when position, could be unlocked by the drivers' cab controller, and then take out the drivers' cab controller.At this moment, a level security connects
Lock key 101 can be placed in the door lock 200 of the protective door of the traction accumulator disconnecting switch, by the protective door
Door lock 200 is opened and is locked by the door lock of the protective door 200.It realizes for the storage battery power engineering truck high-tension apparatus
First layer safety interlocking protection when cabinet door is opened.
After entire vehicle electrical system disconnects external power supply, the traction accumulator disconnecting switch is turned off position, i.e.,
After breaking inner high voltage power supply, then the high-pressure system earthing switch is placed in and is grounded position.
Specifically, after the chain key A 102 of secondary safety is inserted into corresponding keyhole, by the traction accumulator every
When leaving the operation handle of pass and being turned off the traction accumulator disconnecting switch, the chain key A102 ability of secondary safety
It is unlocked, can be removed by the traction accumulator disconnecting switch；It realizes high for the storage battery power engineering truck
Second layer safety interlocking protection when equipment cabinet door being pressed to open.
After the chain key B 103 of secondary safety is inserted into corresponding keyhole, pass through the high-pressure system earthing switch
When the high-pressure system earthing switch is placed in ground connection position by operation handle, the chain key B 103 of secondary safety could be by the height
Pressure system earth switch unlocks, and can be removed；It realizes for the storage battery power engineering truck high-tension apparatus cabinet door
Third layer safety interlocking protection when unlatching.
When the chain key A 102 of secondary safety and the chain key B 103 of secondary safety are locked to the high-voltage safety
When in key case, three-level safety interlocking key combination 104 is unlocked by the high-voltage safety key case, can be from the high pressure
It is taken out in Safe key box, is used to open the corresponding high-tension apparatus cabinet door.It realizes for the battery power engineering
The 4th layer of safety interlocking protection when overall height presses equipment cabinet door to open.
The opening device of the storage battery power engineering truck high-tension apparatus cabinet door provided in this embodiment, in the battery
When electric engineering car high-tension apparatus is overhauled and is safeguarded, by the above-mentioned high voltage safe cross-linked mode of four with logic layer,
So that safety interlock devices at different levels have self-locking and interlock function step by step, it is ensured that external high pressure power supply and internal high pressure power supply are equal
It is just able to achieve the maintenance and maintenance for high-tension apparatus after disconnection and high-pressure system ground connection, avoids peace existing in the prior art
Full hidden danger.
Preferably, as shown in Fig. 2, three-level safety interlocking key combination 104 includes the first key 401,402 and of the second key
Key chain 403；Wherein:
First key 401 is used to be locked or be unlocked by the high-voltage safety key case；
Second key 402 is used to open the corresponding high-tension apparatus cabinet door；
Key chain 403 is for connecting the first key 401 and the second key 402.
Preferably, the second key 402 is the special of the compression door lock of opening High-Voltage Electrical Appliances cabinet and main convertor cabinet cabinet door
Shape key.
Wherein, the second key 402 is used to open the compression door lock of High-Voltage Electrical Appliances cabinet, main convertor cabinet cabinet door, this spy
The key of different shape, not only ensure that the reliability using cabinet door when compression door lock, but also distinguished the side of Ordinary Compression formula door lock
Hole key, it is therefore prevented that Ordinary Compression formula door keys in electrification to the opening of High-Voltage Electrical Appliances cabinet, main convertor cabinet cabinet door,
Improve security performance.
Locking of first key 401 for key combination entire in the high-voltage safety key case.
First key 401 is formed into an entirety together with 402 chain of the second key by key chain 403, any one key
Spoon cannot all be exited from key chain 403, so that realizing the second key 402 opens High-Voltage Electrical Appliances cabinet or main convertor cabinet cabinet door function
Can, the first key 401 completes safety interlocking function.
Preferably, the safety interlocking key of different stage has different marks.
For example, the chain key A of secondary safety is identical as the color of the chain key B of the secondary safety；
The color of the three-level safety interlocking key combination is identical；
The color of the chain key A of the secondary safety and chain key B of the secondary safety, the three-level safety interlocking key
The color of spoon combination and the color of the level-one safety interlocking key be not identical.
Alternatively, the chain key A of secondary safety is identical as hand-held place's shape of the chain key B of the secondary safety；
Hand-held place's shape of the three-level safety interlocking key combination is identical；
Hand-held place's shape of the chain key A of the secondary safety and chain key B of the secondary safety, three level security
Hand-held place's shape of chain key combination and hand-held place's shape of the level-one safety interlocking key be not identical.
The safety interlocking key of different stage has different marks, and the high voltage safe cross-linked mode that can be more convenient for is held
Row.
Another embodiment of the present invention additionally provides the unlatching dress of another storage battery power engineering truck high-tension apparatus cabinet door
Set, comprising: the chain key A of level-one safety interlocking key, secondary safety, the chain key B of secondary safety, high-voltage safety key case with
And at least one three-level safety interlocking key combination；Wherein:
The level-one safety interlocking key is used for the feelings in the external high pressure dump of the storage battery power engineering truck
Under condition, the drivers' cab controller is turned off position, and after the drivers' cab controller is turned off position, by the driver
Room controller unlocks；And the level-one safety interlocking key is in the protective door for opening the traction accumulator disconnecting switch
When by the protective door door lock lock；
The chain key A of secondary safety is used to the traction accumulator disconnecting switch being turned off position, and described
After traction accumulator disconnecting switch is turned off position, unlocked by the traction accumulator disconnecting switch；
The chain key B of secondary safety is used to for the high-pressure system earthing switch to be placed in ground connection position, and in the height
After pressure system earth switch is placed in ground connection position, unlocked by the high-pressure system earthing switch；
The high-voltage safety key case is used in the chain key A of the secondary safety and the chain key B of the secondary safety
In the case where locked, the locking combined for the three-level safety interlocking key is released；
The three-level safety interlocking set of keys is shared in after being unlocked by the high-voltage safety key case, is opened and is corresponded to
The high-tension apparatus cabinet door.
Preferably, the high-voltage safety key case is also used to combine locked situation in the three-level safety interlocking key
Under, release the locking of key A chain for the secondary safety and the chain key B of the secondary safety.
The chain key A of secondary safety is also used to the traction accumulator disconnecting switch being placed in working position, and in institute
It states after traction accumulator disconnecting switch is placed in working position, is locked by the traction accumulator disconnecting switch；
The chain key B of secondary safety is also used to the high-pressure system earthing switch being placed in working position, and described
After high-pressure system earthing switch is placed in working position, locked by the high-pressure system earthing switch.
The level-one safety interlocking key is also used to close the protective door of the traction accumulator disconnecting switch, and is closing
It is locked after the protective door by the door-lock-release of the protective door；And for the drivers' cab controller to be placed in working position,
And after the drivers' cab controller is placed in working position, locked by the drivers' cab controller.
After maintenance and maintenance process for high-tension apparatus are finished, high-voltage board and main convertor cabinet cabinet door are closed, is taken
Three-level safety interlocking key combination out, and all three-level safety interlocking set of keys contracts when, is inserted into the high pressure and pacifies
Full key case, spin locking, then rotation unlocks the chain key A of the secondary safety on the high-voltage safety key case and institute
Secondary safety interlocking key B is stated, two secondary safety interlocking keys are taken out；It will be described in the chain key B insertion of the secondary safety
High-pressure system earthing switch and spin locking, rotate the high-pressure system earthing switch to working position；The secondary safety is chain
Key A is inserted into the traction accumulator disconnecting switch and spin locking, rotates the traction accumulator disconnecting switch to working position；
The protective door of traction accumulator disconnecting switch is closed, rotation unlocks the level-one safety interlocking key and takes out；Take out described one
Level security interlocking key is inserted into the normal operating that drivers' cab controller carries out engineering truck operation.
The opening device of the storage battery power engineering truck high-tension apparatus cabinet door provided in this embodiment, not only to high pressure
When equipment is overhauled and safeguarded, safety interlock devices at different levels have a self-locking and interlock function step by step, and when contrary operation also has
There is self-locking and interlock function step by step.
Each embodiment is described in a progressive manner in the present invention, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part illustration
?.
The above is only the preferred embodiment of the present invention, make skilled artisans appreciate that or realizing of the invention.It is right
A variety of modifications of these embodiments will be apparent to one skilled in the art, general original as defined herein
Reason can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will not
Be intended to be limited to the embodiments shown herein, and be to fit to it is consistent with the principles and novel features disclosed in this article most
Wide range.
Claims (4)
1. a kind of opening device of storage battery power engineering truck high-tension apparatus cabinet door is applied to storage battery power engineering truck, described
Storage battery power engineering truck includes: drivers' cab controller, high-pressure system earthing switch, at least one high-tension apparatus cabinet door and traction
Battery disconnecting switch and its protective door；It is characterized in that, the unlatching of the storage battery power engineering truck high-tension apparatus cabinet door fills
Set include: level-one safety interlocking key, the chain key A of secondary safety, the chain key B of secondary safety, high-voltage safety key case with
And at least one three-level safety interlocking key combination；Wherein:
The level-one safety interlocking key is used for: the external high pressure dump of the storage battery power engineering truck the case where
Under, the drivers' cab controller is turned off position, and after the drivers' cab controller is turned off position, by the drivers' cab
Controller unlocks；It is locked when opening the protective door of the traction accumulator disconnecting switch by the door lock of the protective door；
It is locked after closing the protective door by the door-lock-release of the protective door；And the drivers' cab controller is placed in work
Position, and after the drivers' cab controller is placed in working position, it is locked by the drivers' cab controller；
The chain key A of secondary safety is used for: after the traction accumulator disconnecting switch is turned off position, by the traction
Battery disconnecting switch unlocks；And after the traction accumulator disconnecting switch is placed in working position, stored by the traction
Battery disconnector locking；
The chain key B of secondary safety is used for: after the high-pressure system earthing switch is placed in ground connection position, by the high pressure system
System earthing switch unlocks；And it after the high-pressure system earthing switch is placed in working position, is grounded by the high-pressure system
Switch locking；
The high-voltage safety key case is used for: being locked in the chain key A of the secondary safety and the chain key B of the secondary safety
In the case where fixed, the locking combined for the three-level safety interlocking key is released；And in the three-level safety interlocking key
In the case that combination is locked, the lock of key A chain for the secondary safety and the chain key B of the secondary safety are released
It is fixed；
The three-level safety interlocking set of keys is shared in after being unlocked by the high-voltage safety key case, opens corresponding institute
State high-tension apparatus cabinet door.
2. the opening device of storage battery power engineering truck high-tension apparatus cabinet door according to claim 1, which is characterized in that institute
Stating the combination of three-level safety interlocking key includes the first key, the second key and key chain；Wherein:
First key is used to be locked or be unlocked by the high-voltage safety key case；
Second key is used to open the corresponding high-tension apparatus cabinet door；
The key chain is for connecting first key and second key.
3. the opening device of storage battery power engineering truck high-tension apparatus cabinet door according to claim 2, which is characterized in that institute
Stating the second key is the key for opening the compression door lock of High-Voltage Electrical Appliances cabinet and main convertor cabinet cabinet door.
4. the opening device of storage battery power engineering truck high-tension apparatus cabinet door according to claim 1, which is characterized in that no
The safety interlocking key of same level has different marks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610332873.1A CN105788913B (en) | 2016-05-18 | 2016-05-18 | A kind of opening device of storage battery power engineering truck high-tension apparatus cabinet door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610332873.1A CN105788913B (en) | 2016-05-18 | 2016-05-18 | A kind of opening device of storage battery power engineering truck high-tension apparatus cabinet door |
Publications (2)
| Publication Number | Publication Date |
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| CN105788913A CN105788913A (en) | 2016-07-20 |
| CN105788913B true CN105788913B (en) | 2019-03-29 |
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| CN201610332873.1A Active CN105788913B (en) | 2016-05-18 | 2016-05-18 | A kind of opening device of storage battery power engineering truck high-tension apparatus cabinet door |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107933323A (en) * | 2017-11-17 | 2018-04-20 | 中车株洲电力机车有限公司 | A kind of shunter and its high-voltage safety interlocking system and method |
| EP3618140B1 (en) * | 2018-08-30 | 2023-11-01 | ABB Schweiz AG | Battery storage system with secure access |
| CN113911147B (en) * | 2021-09-30 | 2022-10-14 | 中车株洲电力机车有限公司 | Locomotive and mechanical delay safety interlocking system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5791177A (en) * | 1991-10-21 | 1998-08-11 | Bianco; James S. | Compact electronic lock |
| CN2541245Y (en) * | 2002-04-27 | 2003-03-26 | 石家庄铁路分局石家庄电力机务段 | Pantograph dynamic monitor of power locomotive |
| CN100548735C (en) * | 2006-12-04 | 2009-10-14 | 南车株洲电力机车有限公司 | A kind of high voltage safe cross-linked protective system of locomotive |
| CN102081402B (en) * | 2011-01-25 | 2012-11-14 | 中国人民解放军国防科学技术大学 | Vehicle-mounted control and diagnosis system for medium-low speed maglev train |
| CN102431458B (en) * | 2011-11-29 | 2013-12-04 | 南车株洲电力机车有限公司 | Pantograph control device and pantograph control method |
| CN103422725A (en) * | 2012-05-24 | 2013-12-04 | 中国北车集团大同电力机车有限责任公司 | Method for controlling interlocking among various devices of locomotive |
| CN103625298B (en) * | 2013-12-03 | 2015-12-02 | 中国铁路总公司 | A kind of single-ended cab DC motorcycle pantograph control circuit and rising bow lock-out circuit |
| CN104890519B (en) * | 2015-05-21 | 2017-04-05 | 中车唐山机车车辆有限公司 | EMUs high-voltage safety interlocking system |
| CN105575700B (en) * | 2016-02-26 | 2018-08-03 | 中车青岛四方机车车辆股份有限公司 | A kind of EMU safety circuit interlock control apparatus |
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2016
- 2016-05-18 CN CN201610332873.1A patent/CN105788913B/en active Active
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| CN105788913A (en) | 2016-07-20 |
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