CN105788913A - Storage battery electric power engineering vehicle high-voltage device cabinet door opening device - Google Patents
Storage battery electric power engineering vehicle high-voltage device cabinet door opening device Download PDFInfo
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- CN105788913A CN105788913A CN201610332873.1A CN201610332873A CN105788913A CN 105788913 A CN105788913 A CN 105788913A CN 201610332873 A CN201610332873 A CN 201610332873A CN 105788913 A CN105788913 A CN 105788913A
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- key
- safety
- storage battery
- power engineering
- cabinet door
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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
Abstract
The application provides a storage battery electric power engineering vehicle high-voltage device cabinet door opening device. a driver controller in a driver's cab is set on off-status through a first-stage safety linkage key under the case that the external high voltage supply of the storage battery electric power engineering vehicle is cut off and therefore the opening device is unlocked; the opening device is locked by a protection door lock when the protection door of a traction battery isolating switch is opened; the traction battery isolating switch is set on an off-status through a second-stage safety linkage key A and the opening device is unlocked; a high voltage system grounding switch is set on grounding-status through a second safety linkage key B and then the opening device is unlocked; a three-stage safety linkage key assembly is unlocked by a high voltage safety key case when the second safety linkage key A and the second safety linkage key B are locked; and therefore the three-stage safety linkage key assembly is obtained so that the corresponding high-voltage device cabinet door is opened by the three-stage safety linkage key assembly. By means of the above logical high-voltage safety interlocking method, safety hidden danger in the prior art is avoided.
Description
Technical field
The present invention relates to storage battery power engineering truck technical field, particularly relate to the opening device of a kind of storage battery power engineering truck high pressure equipment cabinet door.
Background technology
Current storage battery power engineering truck mainly has two kinds of power supply modes: pantograph (or the 3rd rail current collector) is powered, and traction accumulator is powered.When pantograph drop bow (or current collector depart from the 3rd rail) stop powering to storage battery power engineering truck time, it is also possible to be that storage battery power engineering truck is powered by traction accumulator；Even if therefore storage battery power engineering truck completely cuts through external power source, however it remains high voltage power supply, this and traditional electric locomotive, city rail vehicle are the differences having essence.For the storage battery power engineering truck having two kinds of high voltage supply modes, when its high pressure equipment is safeguarded, overhauled, it is ensured that realize safety interlocking between high pressure equipment particularly important.
Current storage battery power engineering truck is by the maintenance safety of maintainer's manual control high pressure equipment, detailed process is: first takes out driver's key pantograph and drops bow (or current collector departs from the 3rd rail), traction accumulator isolation switch is placed in " disconnection position " and cuts off traction accumulator power supply, high-pressure system earthed switch is placed in " ground connection position ", then the cabinet door opening high pressure equipment carries out safeguarding, overhauling, whole process does not have safety interlocking function in logic, can only rely on the careful operation of maintainer；Accordingly, because whole high-pressure system is formed without the high voltage safe cross-linked mode with logic, there is following potential safety hazard:
1), pantograph does not drop bow (or current collector is without departing from the 3rd rail) or not disconnected traction accumulator power supply or not high-pressure system ground switch earthing, the cabinet door opening high pressure equipment carries out safeguarding, overhauling there is high-tension electricity and cause the danger of personal accident accident.
2), after high pressure equipment being safeguarded, overhauls, do not release the ground connection of high-pressure system earthed switch,, there is high-pressure system shorted to earth, cause device damage and the danger of personal accident accident in closed draw battery feed or rise pantograph (or current collector contact the 3rd rail) power supply.
Summary of the invention
In view of this, the invention provides the opening device of a kind of storage battery power engineering truck high pressure equipment cabinet door, with the problem solving to there is potential safety hazard in prior art.
To achieve these goals, the technical scheme that the embodiment of the present invention provides is as follows:
A kind of opening device of storage battery power engineering truck high pressure equipment cabinet door, being applied to storage battery power engineering truck, described storage battery power engineering truck includes: drivers' cab controller, high-pressure system earthed switch, at least one high pressure equipment cabinet door and traction accumulator isolation switch and protective door thereof；The opening device of described storage battery power engineering truck high pressure equipment cabinet door includes: one-level safety interlocking key, secondary safety chain key A, secondary safety chain key B, high-voltage safety key case and at least one three chain key combination of level security；Wherein:
Described one-level safety interlocking key is for when the external high pressure dump of described storage battery power engineering truck, described drivers' cab controller is turned off position, and after described drivers' cab controller is turned off position, unlocked by described drivers' cab controller；And described one-level safety interlocking key is locked by the door lock of described protective door when opening the protective door of described traction accumulator isolation switch；
Described secondary safety chain key A is turned off position for described traction accumulator is isolated switch, and after described traction accumulator isolation switch is turned off position, is isolated switch by described traction accumulator and unlock；
Described secondary safety chain key B for being placed in ground connection position by described high-pressure system earthed switch, and after described high-pressure system earthed switch is placed in ground connection position, is unlocked by described high-pressure system earthed switch；
Described high-voltage safety key case is for when the chain key B of described secondary safety chain key A and described secondary safety is locked, releasing the locking for the described three chain key combinations of level security；
The described three chain set of keys of level security are share in, after being unlocked by described high-voltage safety key case, opening the described high pressure equipment cabinet door of correspondence.
Preferably, the described three chain key combinations of level security include the first key, the second key and key chain；Wherein:
Described first key is for being locked by described high-voltage safety key case or unlocking；
Described second key is for opening the described high pressure equipment cabinet door of correspondence；
Described key chain is used for connecting described first key and described second key.
Preferably, described second key is the special shape key of the compression door lock opening High-Voltage Electrical Appliances cabinet and main convertor cabinet cabinet door.
Preferably, the safety interlocking key of different stage has different marks.
Preferably, described high-voltage safety key case is additionally operable to, when the chain key combination of described three level security is locked, release the locking for the chain key B of described secondary safety chain key A and described secondary safety.
Preferably, described secondary safety chain key A is additionally operable to that described traction accumulator is isolated switch and is placed in working position, and after described traction accumulator isolation switch is placed in working position, is kept apart pass locking by described traction accumulator；
Described secondary safety chain key B is additionally operable to be placed in described high-pressure system earthed switch working position, and after described high-pressure system earthed switch is placed in working position, is locked by described high-pressure system earthed switch.
Preferably, described one-level safety interlocking key is additionally operable to close the protective door of described traction accumulator isolation switch, and is locked by the door-lock-release of described protective door after closing described protective door；And, for described drivers' cab controller being placed in working position, and after described drivers' cab controller is placed in working position, locked by described drivers' cab controller.
The application provides the opening device of a kind of storage battery power engineering truck high pressure equipment cabinet door, by one-level safety interlocking key when the external high pressure dump of storage battery power engineering truck, drivers' cab controller is turned off position, and after described drivers' cab controller is turned off position, unlocked by described drivers' cab controller；Locked by the door lock of described protective door with when opening the protective door of traction accumulator isolation switch；Again through secondary safety chain key A, described traction accumulator is isolated switch and be turned off position, and unlocked by described traction accumulator isolation switch；By secondary safety chain key B, described high-pressure system earthed switch is placed in ground connection position, and unlocked by described high-pressure system earthed switch；Then pass through high-voltage safety key case when the chain key B of described secondary safety chain key A and described secondary safety is locked, release the locking for the three chain key combinations of level security；And then obtain the described three chain key combinations of level security, it is able to open the described high pressure equipment cabinet door of correspondence with described three level security chain key combinations.By the above-mentioned high voltage safe cross-linked mode with logic, it is to avoid the potential safety hazard existed in prior art.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
The structural representation of the opening device of a kind of storage battery power engineering truck high pressure equipment cabinet door that Fig. 1 provides for the embodiment of the present application；
The structural representation of the three chain key combinations of level security that Fig. 2 provides for another embodiment of the application.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
The invention provides the opening device of a kind of storage battery power engineering truck high pressure equipment cabinet door, with the problem solving to there is potential safety hazard in prior art.
Concrete, the opening device of described storage battery power engineering truck high pressure equipment cabinet door, being applied to storage battery power engineering truck, described storage battery power engineering truck includes: drivers' cab controller, high-pressure system earthed switch, at least one high pressure equipment cabinet door and traction accumulator isolation switch and protective door thereof.
The opening device of described storage battery power engineering truck high pressure equipment cabinet door includes: one-level safety interlocking key, secondary safety chain key A, secondary safety chain key B, high-voltage safety key case and at least one three chain key combination of level security；Wherein:
Described one-level safety interlocking key is for when the external high pressure dump of described storage battery power engineering truck, described drivers' cab controller is turned off position, and after described drivers' cab controller is turned off position, unlocked by described drivers' cab controller；And described one-level safety interlocking key is locked by the door lock of described protective door when opening the protective door of described traction accumulator isolation switch；
In concrete practical application, the process of described external high pressure dump is: bow (or current collector departs from the 3rd rail) drops in pantograph, and described storage battery power engineering truck receives the main circuit breaker of externally fed and disconnects.
Described secondary safety chain key A is turned off position for described traction accumulator is isolated switch, and after described traction accumulator isolation switch is turned off position, is isolated switch by described traction accumulator and unlock；
Described secondary safety chain key B for being placed in ground connection position by described high-pressure system earthed switch, and after described high-pressure system earthed switch is placed in ground connection position, is unlocked by described high-pressure system earthed switch；
Described high-voltage safety key case is for when the chain key B of described secondary safety chain key A and described secondary safety is locked, releasing the locking for the described three chain key combinations of level security；
The described three chain set of keys of level security are share in, after being unlocked by described high-voltage safety key case, opening the described high pressure equipment cabinet door of correspondence.
Concrete operation principle is:
With reference to shown in Fig. 1, one-level safety interlocking key 101 can be placed in the door lock 200 of the protective door isolating switch in described drivers' cab controller with described traction accumulator.Further, when described drivers' cab controller is placed in working position by one-level safety interlocking key 101, locked by described drivers' cab controller, it is impossible to take out；When only described drivers' cab controller being turned off, could be unlocked by described drivers' cab controller, and then take out described drivers' cab controller.At this moment, one-level safety interlocking key 101 can be placed in the door lock 200 of the protective door of described traction accumulator isolation switch, is opened by the door lock 200 of described protective door and is locked by the door lock 200 of described protective door.Achieve ground floor safety interlocking protection when described storage battery power engineering truck high pressure equipment cabinet door is opened.
After entire automobile electric system disconnects external power source, described traction accumulator is isolated switch and is turned off position, namely after breaking inner high voltage power supply, more described high-pressure system earthed switch is placed in ground connection position.
Concrete, after secondary safety chain key A102 inserts corresponding keyhole, by the operation handle of described traction accumulator isolation switch described traction accumulator isolated switch be turned off time, secondary safety chain key A102 could be isolated switch by described traction accumulator and unlock, it is possible to be removed；Achieve second layer safety interlocking protection when described storage battery power engineering truck high pressure equipment cabinet door is opened.
After secondary safety chain key B103 inserts corresponding keyhole, when described high-pressure system earthed switch being placed in ground connection position by the operation handle of described high-pressure system earthed switch, secondary safety chain key B103 could be unlocked by described high-pressure system earthed switch, it is possible to is removed；Achieve third layer safety interlocking protection when described storage battery power engineering truck high pressure equipment cabinet door is opened.
When secondary safety chain key A102 and secondary safety chain key B103 has locked out in described high-voltage safety key case, three level security chain key combinations 104 are unlocked by described high-voltage safety key case, can take out in described high-voltage safety key case, for opening the described high pressure equipment cabinet door of correspondence.Achieve the 4th layer of safety interlocking protection when described storage battery power engineering truck high pressure equipment cabinet door is opened.
The opening device of the described storage battery power engineering truck high pressure equipment cabinet door that the present embodiment provides, when described storage battery power engineering truck high pressure equipment needs to carry out overhauling and safeguarding, by above-mentioned four layers of high voltage safe cross-linked mode with logic, safety interlock device at different levels is made to have self-locking and interlock function step by step, ensure that external high pressure power supply and internal high pressure power supply all disconnect and could realize the maintenance for high pressure equipment and maintenance after high-pressure system ground connection, it is to avoid the potential safety hazard existed in prior art.
Preferably, as in figure 2 it is shown, the three chain key combinations 104 of level security include the first key the 401, second key 402 and key chain 403；Wherein:
First key 401 is for being locked by described high-voltage safety key case or unlocking；
Second key 402 is for opening the described high pressure equipment cabinet door of correspondence；
Key chain 403 is used for connecting the first key 401 and the second key 402.
Preferably, the second key 402 is the special shape key of the compression door lock opening High-Voltage Electrical Appliances cabinet and main convertor cabinet cabinet door.
Wherein, second key 402 is for opening the compression door lock of High-Voltage Electrical Appliances cabinet, main convertor cabinet cabinet door, the key of this special shape, both ensure that the reliability of cabinet door when using compression door lock, distinguish again the square hole key of Ordinary Compression formula door lock, prevent Ordinary Compression formula door keys to High-Voltage Electrical Appliances cabinet, the opening of main convertor cabinet cabinet door in charged situation, improve security performance.
First key 401 is for the locking of whole key combination in described high-voltage safety key case.
By key chain 403 by the first key 401 and the second key 402 chain together into an entirety, any key all can not exit from key chain 403, it is achieved thereby that the second key 402 opens High-Voltage Electrical Appliances cabinet or main convertor cabinet cabinet door function, the first key 401 completes safety interlocking function.
Preferably, the safety interlocking key of different stage has different marks.
Such as, described secondary safety chain key A is identical with the color of described secondary safety chain key B；
The color of described three level security chain key combinations is identical；
The color of described secondary safety chain key A and described secondary safety chain key B, the described color of three level security chain key combinations and the color of described one-level safety interlocking key differ.
Or, described secondary safety chain key A is identical with the hand-held place profile of described secondary safety chain key B；
The hand-held place profile of described three level security chain key combinations is identical；
The hand-held place profile of described secondary safety chain key A and described secondary safety chain key B, the described hand-held place profile of three level security chain key combinations and the hand-held place profile of described one-level safety interlocking key differ.
The safety interlocking key of different stage has different marks, it is possible to the execution of high voltage safe cross-linked mode of being more convenient for.
Another embodiment of the present invention additionally provides the opening device of another storage battery power engineering truck high pressure equipment cabinet door, including: one-level safety interlocking key, secondary safety chain key A, secondary safety chain key B, high-voltage safety key case and at least one three chain key combination of level security；Wherein:
Described one-level safety interlocking key is for when the external high pressure dump of described storage battery power engineering truck, described drivers' cab controller is turned off position, and after described drivers' cab controller is turned off position, unlocked by described drivers' cab controller；And described one-level safety interlocking key is locked by the door lock of described protective door when opening the protective door of described traction accumulator isolation switch；
Described secondary safety chain key A is turned off position for described traction accumulator is isolated switch, and after described traction accumulator isolation switch is turned off position, is isolated switch by described traction accumulator and unlock；
Described secondary safety chain key B for being placed in ground connection position by described high-pressure system earthed switch, and after described high-pressure system earthed switch is placed in ground connection position, is unlocked by described high-pressure system earthed switch；
Described high-voltage safety key case is for when the chain key B of described secondary safety chain key A and described secondary safety is locked, releasing the locking for the described three chain key combinations of level security；
The described three chain set of keys of level security are share in, after being unlocked by described high-voltage safety key case, opening the described high pressure equipment cabinet door of correspondence.
Preferably, described high-voltage safety key case is additionally operable to, when the chain key combination of described three level security is locked, release the locking for the chain key B of described secondary safety chain key A and described secondary safety.
Described secondary safety chain key A is additionally operable to that described traction accumulator is isolated switch and is placed in working position, and after described traction accumulator isolation switch is placed in working position, is kept apart pass locking by described traction accumulator；
Described secondary safety chain key B is additionally operable to be placed in described high-pressure system earthed switch working position, and after described high-pressure system earthed switch is placed in working position, is locked by described high-pressure system earthed switch.
Described one-level safety interlocking key is additionally operable to close the protective door of described traction accumulator isolation switch, and is locked by the door-lock-release of described protective door after closing described protective door；And, for described drivers' cab controller being placed in working position, and after described drivers' cab controller is placed in working position, locked by described drivers' cab controller.
After the maintenance of high pressure equipment and maintenance process are finished, close high-voltage board and main convertor cabinet cabinet door, take out the described three chain key combinations of level security, and all described three level security chain set of keys conjunctions are inserted simultaneously into described high-voltage safety key case, spin locking, then rotate the described secondary safety chain key A unlocked on described high-voltage safety key case and described secondary safety interlocking key B, take out two secondary safety interlocking keys；Chain for described secondary safety key B is inserted described high-pressure system earthed switch spin locking, rotates described high-pressure system earthed switch to working position；Described secondary safety chain key A insertion described traction accumulator isolation switch spin locking, rotate the isolation of described traction accumulator and switch to working position；Close the protective door of traction accumulator isolation switch, rotate and unlock described one-level safety interlocking key and take out；Take out described one-level safety interlocking key insertion drivers' cab controller and carry out the normal operating of engineering truck operation.
The opening device of the described storage battery power engineering truck high pressure equipment cabinet door that the present embodiment provides, not only when high pressure equipment being overhauled and safeguarding, safety interlock device at different levels have self-locking and interlock function step by step, also have self-locking and interlock function step by step during its contrary operation.
In the present invention, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment, owing to it corresponds to the method disclosed in Example, so what describe is fairly simple, relevant part illustrates referring to method part.
Below it is only the preferred embodiment of the present invention, makes to skilled artisans appreciate that or realize the present invention.The multiple amendment of these embodiments be will be apparent to one skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (7)
1. the opening device of a storage battery power engineering truck high pressure equipment cabinet door, being applied to storage battery power engineering truck, described storage battery power engineering truck includes: drivers' cab controller, high-pressure system earthed switch, at least one high pressure equipment cabinet door and traction accumulator isolation switch and protective door thereof；It is characterized in that, the opening device of described storage battery power engineering truck high pressure equipment cabinet door includes: one-level safety interlocking key, secondary safety chain key A, secondary safety chain key B, high-voltage safety key case and at least one three chain key combination of level security；Wherein:
Described one-level safety interlocking key is for when the external high pressure dump of described storage battery power engineering truck, described drivers' cab controller is turned off position, and after described drivers' cab controller is turned off position, unlocked by described drivers' cab controller；And described one-level safety interlocking key is locked by the door lock of described protective door when opening the protective door of described traction accumulator isolation switch；
Described secondary safety chain key A is turned off position for described traction accumulator is isolated switch, and after described traction accumulator isolation switch is turned off position, is isolated switch by described traction accumulator and unlock；
Described secondary safety chain key B for being placed in ground connection position by described high-pressure system earthed switch, and after described high-pressure system earthed switch is placed in ground connection position, is unlocked by described high-pressure system earthed switch；
Described high-voltage safety key case is for when the chain key B of described secondary safety chain key A and described secondary safety is locked, releasing the locking for the described three chain key combinations of level security；
The described three chain set of keys of level security are share in, after being unlocked by described high-voltage safety key case, opening the described high pressure equipment cabinet door of correspondence.
2. the opening device of storage battery power engineering truck high pressure equipment cabinet door according to claim 1, it is characterised in that the described three chain key combinations of level security include the first key, the second key and key chain；Wherein:
Described first key is for being locked by described high-voltage safety key case or unlocking；
Described second key is for opening the described high pressure equipment cabinet door of correspondence；
Described key chain is used for connecting described first key and described second key.
3. the opening device of storage battery power engineering truck high pressure equipment cabinet door according to claim 2, it is characterised in that described second key is the special shape key of the compression door lock opening High-Voltage Electrical Appliances cabinet and main convertor cabinet cabinet door.
4. the opening device of storage battery power engineering truck high pressure equipment cabinet door according to claim 1, it is characterised in that the safety interlocking key of different stage has different marks.
5. the opening device according to the arbitrary described storage battery power engineering truck high pressure equipment cabinet door of Claims 1-4, it is characterized in that, described high-voltage safety key case is additionally operable to, when the chain key combination of described three level security is locked, release the locking for the chain key B of described secondary safety chain key A and described secondary safety.
6. the opening device of storage battery power engineering truck high pressure equipment cabinet door according to claim 5, it is characterized in that, described secondary safety chain key A is additionally operable to that described traction accumulator is isolated switch and is placed in working position, and after described traction accumulator isolation switch is placed in working position, kept apart pass locking by described traction accumulator；
Described secondary safety chain key B is additionally operable to be placed in described high-pressure system earthed switch working position, and after described high-pressure system earthed switch is placed in working position, is locked by described high-pressure system earthed switch.
7. the opening device of storage battery power engineering truck high pressure equipment cabinet door according to claim 6, it is characterized in that, described one-level safety interlocking key is additionally operable to close the protective door of described traction accumulator isolation switch, and is locked by the door-lock-release of described protective door after closing described protective door；And, for described drivers' cab controller being placed in working position, and after described drivers' cab controller is placed in working position, locked by described drivers' cab controller.
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 |
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| CN105788913A true CN105788913A (en) | 2016-07-20 |
| CN105788913B 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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| WO2023051481A1 (en) * | 2021-09-30 | 2023-04-06 | 中车株洲电力机车有限公司 | Locomotive and mechanical delay safety interlock system |
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| EP3618140A1 (en) * | 2018-08-30 | 2020-03-04 | ABB Schweiz AG | Battery storage system with secure access |
| WO2023051481A1 (en) * | 2021-09-30 | 2023-04-06 | 中车株洲电力机车有限公司 | Locomotive and mechanical delay safety interlock system |
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|---|---|
| CN105788913B (en) | 2019-03-29 |
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