CN205509649U - A power supply mode automatic switch -over circuit for track traffic - Google Patents
A power supply mode automatic switch -over circuit for track traffic Download PDFInfo
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- CN205509649U CN205509649U CN201620248030.9U CN201620248030U CN205509649U CN 205509649 U CN205509649 U CN 205509649U CN 201620248030 U CN201620248030 U CN 201620248030U CN 205509649 U CN205509649 U CN 205509649U
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- track traffic
- power supply
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Abstract
The utility model discloses a power supply mode automatic switch -over circuit for track traffic, including the switch element with be located conventional supply circuit and meet an urgent need isolation unit between the supply circuit, the coil of switch element inserts to the conventional supply circuit on, the normally closed contact series of switch element extremely among the emergent supply circuit. The utility model discloses a power supply mode automatic switch -over circuit for track traffic has advantages such as simple, the easy and simple to handle and operational reliability height of circuit structure.
Description
Technical field
This utility model relates generally to technical field of rail traffic, refers in particular to a kind of powering mode automatic switch-over circuit for track traffic.
Background technology
Rail transportation vehicle-mounted emergency power supply system is mainly provides control power supply to vehicle-mounted convertor equipment (particularly charger) in the case of discharged or defective battery, can realize emergency starting in the case of external power source feeds.In the ordinary course of things, mobile unit enters emergency starting mode of operation to be needed by being manually identified switching, or is identified switching by computer.
External power source uses the circuit form of " three are isolated transformation+three-phase uncontrollable rectifier+DC filtering " at present, it is made up of the electrically link such as isolation transformation, uncontrollable rectifier, DC filtering (comprising electric capacity, EMC wave filter), carry out answering the switching of " emergency starting pattern/normal mode ", referring specifically to Fig. 1 by outside emergency starting switch.
Utility model content
The technical problems to be solved in the utility model is that the technical problem existed for prior art, the powering mode automatic switch-over circuit for track traffic that this utility model provides a kind of simple in construction, easy and simple to handle and reliability is high.
For solving above-mentioned technical problem, the technical scheme that the utility model proposes is:
A kind of powering mode automatic switch-over circuit for track traffic, including switch element and the isolated location between conventional electron circuit and emergency supply circuit, the coil of described switch element accesses on conventional electron circuit, and the normally-closed contact of described switch element is connected serially in described emergency supply circuit.
Further improvement as technique scheme:
Described emergency supply circuit includes emergency service power supply and the emergency service module being serially connected, and the normally-closed contact of described switch element is series at input or the outfan of emergency service module.
Described switch element is relay.
Described isolated location is diode, and the positive pole of described diode is connected with described conventional electron circuit, and negative pole is connected with emergency supply circuit.
Compared with prior art, the utility model has the advantage of:
Powering mode automatic switch-over circuit for track traffic of the present utility model, the reliable switching between conventional electron and emergency service is realized by the hardware circuit being made up of switch element and isolated location, when conventional electron, the coil of switch element obtains electric, the normally-closed contact of switch element is opened, and carries out normal power supply；When conventional electron power supply disconnects, the coil losing electricity of switch element, the normally-closed contact Guan Bi of switch element, thus connect emergency supply circuit, emergency supply circuit provide power supply；This automatic switch-over circuit simple in construction, it is easily achieved and reliability is high.
Accompanying drawing explanation
Fig. 1 is the frame principle figure of switching in prior art.
Fig. 2 is the structural representation of this utility model embodiment one.
Fig. 3 is the structural representation of this utility model embodiment two.
In figure, label represents: 1, conventional electron circuit；11, conventional electron power supply；2, emergency supply circuit；21, emergency service power supply；22, emergency service module；3, power module is controlled；4, switch element；5, isolated location.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, this utility model is further described.
Embodiment one:
As shown in Figure 2, the powering mode automatic switch-over circuit for track traffic of the present embodiment, including switch element 4 and the isolated location between conventional electron circuit 1 and emergency supply circuit 25, the coil of switch element 4 accesses on conventional electron circuit 1, and the normally-closed contact of switch element 4 is connected serially in emergency supply circuit 2.Powering mode automatic switch-over circuit for track traffic of the present utility model, the reliable switching between conventional electron and emergency service is realized by the hardware circuit being made up of switch element 4 and isolated location 5, when conventional electron, the coil of switch element 4 obtains electric, the normally-closed contact of switch element 4 is opened, and carries out normal power supply；When conventional electron power supply 11 disconnects, the coil losing electricity of switch element 4, the normally-closed contact Guan Bi of switch element 4, thus connect emergency supply circuit 2, emergency supply circuit 2 provide power supply；This automatic switch-over circuit simple in construction, it is easily achieved and to switch reliability high.
In the present embodiment, switch element 4 is other switching device such as relay K or catalyst.Isolated location 5 is diode VD, and the positive pole of diode VD is connected with conventional electron circuit 1, and negative pole is connected with emergency supply circuit 2, will isolate between conventional electron circuit 1 and emergency supply circuit 2.
In the present embodiment, emergency supply circuit 2 includes emergency service power supply 21 and the emergency service module 22 being serially connected, and the normally-closed contact of switch element 4 is series at the outfan of emergency service module 22.When the normally-closed contact of relay K is closure state, between emergency service module 22 and conventional electron power supply 11, pass through diode-isolated；When the normally-closed contact of relay K is off-state, emergency service module 22 is isolated by the normally-closed contact of relay K with conventional electron power supply 11.
Under conventional electron pattern, relay K coil obtains electric, and the normally-closed contact action of relay K disconnects, and emergency supply circuit 2 is isolated with conventional electron power supply 11, and conventional electron power supply 11 provides input by diode VD to controlling power module 3；Under emergency service pattern, relay K coil must not be electric, and the normally-closed contact of relay K is failure to actuate, and can be provided input by emergency service power supply 21 to controlling power module 3, be isolated with conventional electron circuit 1 by diode VD simultaneously.
Embodiment two:
As it is shown on figure 3, the differing only in of the present embodiment and embodiment one, the normally-closed contact of switch element 4 is series at the input of emergency service module 22, is capable of the automatic switchover between conventional electron circuit 1 and emergency supply circuit 2 equally；Additionally emergency service module 22 is from isolating device, it is possible to the impact of isolation and amplifier end reverse electrical source.Other not described content is identical with embodiment one, does not repeats them here.
Although this utility model is disclosed above with preferred embodiment, but it is not limited to this utility model.Any those of ordinary skill in the art, in the case of without departing from technical solutions of the utility model scope, technical solutions of the utility model are made many possible variations and modification by the technology contents that all may utilize the disclosure above, or are revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solutions of the utility model, according to this utility model technical spirit to any simple modification made for any of the above embodiments, equivalent variations and modification, all should fall in the range of technical solutions of the utility model are protected.
Claims (4)
1. the powering mode automatic switch-over circuit for track traffic, it is characterized in that, including switch element (4) and the isolated location (5) that is positioned between conventional electron circuit (1) and emergency supply circuit (2), the coil of described switch element (4) accesses on conventional electron circuit (1), and the normally-closed contact of described switch element (4) is connected serially in described emergency supply circuit (2).
Powering mode automatic switch-over circuit for track traffic the most according to claim 1, it is characterized in that, described emergency supply circuit (2) includes emergency service power supply (21) and the emergency service module (22) being serially connected, and the normally-closed contact of described switch element (4) is series at input or the outfan of emergency service module (22).
Powering mode automatic switch-over circuit for track traffic the most according to claim 1 and 2, it is characterised in that described switch element (4) is relay.
Powering mode automatic switch-over circuit for track traffic the most according to claim 1 and 2, it is characterized in that, described isolated location (5) is diode, and the positive pole of described diode is connected with described conventional electron circuit (1), and negative pole is connected with emergency supply circuit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620248030.9U CN205509649U (en) | 2016-03-29 | 2016-03-29 | A power supply mode automatic switch -over circuit for track traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620248030.9U CN205509649U (en) | 2016-03-29 | 2016-03-29 | A power supply mode automatic switch -over circuit for track traffic |
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| Publication Number | Publication Date |
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| CN205509649U true CN205509649U (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620248030.9U Active CN205509649U (en) | 2016-03-29 | 2016-03-29 | A power supply mode automatic switch -over circuit for track traffic |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400648A (en) * | 2017-12-14 | 2018-08-14 | 蔚来汽车有限公司 | The startup power supply device and method of movable charging vehicle |
| CN108574335A (en) * | 2017-03-13 | 2018-09-25 | 株洲中车时代电气股份有限公司 | A kind of the control system redundancy switching device and method of train power supply |
| CN111497649A (en) * | 2020-06-04 | 2020-08-07 | 中车青岛四方机车车辆股份有限公司 | Circuit and method for controlling starting of charger and railway vehicle |
-
2016
- 2016-03-29 CN CN201620248030.9U patent/CN205509649U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574335A (en) * | 2017-03-13 | 2018-09-25 | 株洲中车时代电气股份有限公司 | A kind of the control system redundancy switching device and method of train power supply |
| CN108400648A (en) * | 2017-12-14 | 2018-08-14 | 蔚来汽车有限公司 | The startup power supply device and method of movable charging vehicle |
| WO2019114304A1 (en) * | 2017-12-14 | 2019-06-20 | 蔚来汽车有限公司 | Starting power supply device and method for mobile charging vehicle |
| CN111497649A (en) * | 2020-06-04 | 2020-08-07 | 中车青岛四方机车车辆股份有限公司 | Circuit and method for controlling starting of charger and railway vehicle |
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