CN201118277Y - Electrical source switching device - Google Patents
Electrical source switching device Download PDFInfo
- Publication number
- CN201118277Y CN201118277Y CNU2007201729620U CN200720172962U CN201118277Y CN 201118277 Y CN201118277 Y CN 201118277Y CN U2007201729620 U CNU2007201729620 U CN U2007201729620U CN 200720172962 U CN200720172962 U CN 200720172962U CN 201118277 Y CN201118277 Y CN 201118277Y
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Abstract
The utility model discloses a power switching device, which is provided with two power circuits and two control circuits. Two branches are divaricated from a phase wire of the power circuit (1) and are provided with an AC contactor KM1 and an AC contactor KM4 respectively. Two branches divaricated from a phase wire of the power circuit (2) and are provided with an AC contactor KM2 and an AC contactor KM3 respectively. Main contacts of the AC contactors KM1and KM2 are connected with a switching circuit (1), while main contacts of the AC contactors KM3and KM4 are connected with a switching circuit (2). With the control circuits, middle relays KM5 and KM 6 are arranged on the power circuits (1) and (2) to control the four AC contactors on the main circuits. With the power switching device, the AC contractor backup is realized to greatly promote the reliability of the power supply panel system.
Description
Technical field
The utility model relates to power supply control technology field, a kind of specifically power transfer device.
Background technology
Good multi-field at present stable in order to guarantee power supply, all need two cover power supply power supplies, and the handoff technique between the two cover power supplys is the stable key technology of power supply.Railway signal field particularly, along with the development of China railways cause, railway repeatedly raises speed; Railway speed increase is had higher requirement to railway signals equipment.The railway intelligent power supply panel is the nucleus equipment for whole railway signal system power supply.For guaranteeing the normal safe operation of railway, railway signal system needs two cover power supply power supplies, and switching device shifter is one of core component of railway signal power supply screen.
The power supply switching of using at present is a kind of to be ATS, and the operation principle of ATS simply is exactly a single-pole double-throw switch (SPDT) of control automatically, has electric, mechanical interlocking, instantaneous energising, and machinery keeps, not power consumption, noiselessness.As shown in Figure 1,, directly jump to state 2, make shorten dramatically switching time from state 1 owing to there is not intermediateness; But it has following shortcoming: 1. cost is higher; 2.ATS backup can not cause whole power supply panel system cut-off in case ATS breaks down, and has influence on the interlocking of signals system, influences the train driving.Also having a kind of handoff technique is Y shape handoff technique, as shown in Figure 2, if Q1 closes earlier than Q2, and one tunnel input power supply is normal, then imports 1 work, automatically switches to input 2 power supplies when input 1 has a power failure, otherwise two tunnel inputs have a power failure and then automatically switch to one tunnel power supply.Its shortcoming is the not backup of actuator's contactor, when one road power supply has a power failure and two tunnel contact KM2 can cause whole power supply panel system cut-off when breaking down, has influence on the interlocking of signals system, influence train and drives a vehicle.
Summary of the invention
The purpose of this utility model is for providing a kind of safe and reliable, power transfer device with backup functionality.
The technical scheme that realizes the foregoing invention purpose is as follows:
Power transfer device, have two-way power supply and control circuit, phase line of power is told two branch lines on the I road, be respectively equipped with an A.C. contactor KM1 on two branch lines, KM4, II road phase line of power is told two branch lines, be respectively equipped with an A.C. contactor KM2 on two branch lines, KM3, its line bag is located at separately, and the A of branch line goes up mutually, A.C. contactor KM1, the KM2 main contacts links to each other with switching I road, A.C. contactor KM3, the KM4 main contacts links to each other with switching II road, its line bag is located at separately, and the A of branch line goes up mutually, described control circuit comprises two auxiliary relay KM5 and KM6, the line of relay K M5 is packaged in I power supply road A and goes up mutually, the line of auxiliary relay KM6 is packaged in II road power supply A and goes up mutually, the line bag of A.C. contactor KM1 with link center line N after the normally-closed contact of A.C. contactor KM2 and auxiliary relay KM5 normally opened contact are connected, the line bag of A.C. contactor KM2 with link center line N after the normally-closed contact of KM1 and auxiliary relay KM5 normally-closed contact are connected, the line bag of A.C. contactor KM4 be connected to center line N after the normally-closed contact of A.C. contactor KM3 and auxiliary relay KM6 normally-closed contact are connected, the line bag of A.C. contactor KM3 with link center line N after the normally-closed contact of KM4 and auxiliary relay KM6 normally opened contact are connected.
Be provided with mechanical interlock between described A.C. contactor KM1 and the KM2 and between KM3 and the KM4.
Install two merely hit auxiliary relay KM5, KM6 in system additional, KM5 line bag is connected on the civil power of I road, and the line bag of KM6 is connected on the civil power of II road.
Only one the tunnel when having electricity, the KM5 adhesive, and its normally opened contact closure, normally-closed contact disconnects, and KM1, KM4 adhesive in the main circuit are switched one the tunnel, are switched two the tunnel and all have.
Only two the tunnel when having electricity, the KM6 adhesive, and its normally opened contact closure, normally-closed contact disconnects, and KM2, KM3 adhesive in the main circuit are switched one the tunnel, are switched two the tunnel and all have.
One the tunnel, the two tunnel when all having electricity, the equal adhesive of KM5, KM6, and its normally opened contact closure, normally-closed contact disconnects, KM1, KM3 adhesive in the main circuit, switching one the tunnel, the two tunnel all has.
The utility model has been realized backup functionality, can improve the reliability of power supply panel system greatly.
Description of drawings
Fig. 1 is the schematic diagram of prior art one
Fig. 2 is the schematic diagram of prior art two
Fig. 3 is the utility model circuit diagram
Fig. 4 is the utility model main circuit diagram
Fig. 5 is the utility model control circuit figure
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Shown in Fig. 3-5, power transfer device, have two-way power supply and control circuit, the two-way power output end is respectively equipped with hand switch QF1 and QF2, phase line of power is told two branch lines on the I road, be respectively equipped with an A.C. contactor KM1 on two branch lines, KM4, II road phase line of power is told two branch lines, is respectively equipped with an A.C. contactor KM2 on two branch lines, KM3, its line bag is located at separately that the A of branch line goes up mutually, A.C. contactor KM1, the KM2 main contacts links to each other A.C. contactor KM3 with switching I road, the KM4 main contacts links to each other with switching II road, its line bag is located at separately that the A of branch line goes up mutually, is provided with mechanical interlock between described A.C. contactor KM1 and the KM2 and between KM3 and the KM4.Described control circuit comprises two auxiliary relay KM5 and KM6, the line of relay K M5 is packaged in I road power supply A and goes up mutually, the line of auxiliary relay KM6 is packaged in II road power supply A and goes up mutually, the line bag of A.C. contactor KM1 with link center line N after the normally-closed contact of A.C. contactor KM2 and auxiliary relay KM5 normally opened contact are connected, the line bag of A.C. contactor KM2 with link center line N after the normally-closed contact of KM1 and auxiliary relay KM5 normally-closed contact are connected, the line bag of A.C. contactor KM4 be connected to center line N after the normally-closed contact of A.C. contactor KM3 and auxiliary relay KM6 normally-closed contact are connected, the line bag of A.C. contactor KM3 with link center line N after the normally-closed contact of KM4 and auxiliary relay KM6 normally opened contact are connected.
Claims (2)
1. power transfer device, have two-way power supply and control circuit, it is characterized by: phase line of power is told two branch lines on the I road, be respectively equipped with an A.C. contactor KM1 on two branch lines, KM4, II road phase line of power is told two branch lines, be respectively equipped with an A.C. contactor KM2 on two branch lines, KM3, its line bag is located at separately, and the A of branch line goes up mutually, A.C. contactor KM1, the KM2 main contacts links to each other with switching I road, A.C. contactor KM3, the KM4 main contacts links to each other with switching II road, its line bag is located at separately, and the A of branch line goes up mutually, described control circuit comprises two auxiliary relay KM5 and KM6, the line of relay K M5 is packaged in I road power supply A and goes up mutually, the line of auxiliary relay KM6 is packaged in II road power supply A and goes up mutually, the line bag of A.C. contactor KM1 with link center line N after the normally-closed contact of A.C. contactor KM2 and auxiliary relay KM5 normally opened contact are connected, the line bag of A.C. contactor KM2 with link center line N after the normally-closed contact of KM1 and auxiliary relay KM5 normally-closed contact are connected, the line bag of A.C. contactor KM4 be connected to center line N after the normally-closed contact of A.C. contactor KM3 and auxiliary relay KM6 normally-closed contact are connected, the line bag of A.C. contactor KM3 with link center line N after the normally-closed contact of KM4 and auxiliary relay KM6 normally opened contact are connected.
2. power transfer device according to claim 1 is characterized by: be provided with mechanical interlock between described A.C. contactor KM1 and the KM2 and between KM3 and the KM4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201729620U CN201118277Y (en) | 2007-09-04 | 2007-09-04 | Electrical source switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201729620U CN201118277Y (en) | 2007-09-04 | 2007-09-04 | Electrical source switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118277Y true CN201118277Y (en) | 2008-09-17 |
Family
ID=39992868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201729620U Expired - Lifetime CN201118277Y (en) | 2007-09-04 | 2007-09-04 | Electrical source switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118277Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951722A (en) * | 2010-10-15 | 2011-01-19 | 中冶北方工程技术有限公司 | Energy-saving type emergency lighting distribution box |
| CN103580278A (en) * | 2013-11-06 | 2014-02-12 | 北京鼎汉技术股份有限公司 | Automatic control system and method of signal power supply panel |
| CN103580277A (en) * | 2013-11-06 | 2014-02-12 | 北京鼎汉技术股份有限公司 | Cold-standby switching system for remotely-controlled parallel power supply panels |
| CN103647344A (en) * | 2013-11-25 | 2014-03-19 | 衡阳泰豪通信车辆有限公司 | An oil engine interlock apparatus, a power supply device, and a method for supplying power for a square cabin device |
| CN106681266A (en) * | 2017-01-13 | 2017-05-17 | 北京航天自动控制研究所 | Redundancy switching circuit and method of parallel PLCs (programmable logic controllers) |
| CN112865285A (en) * | 2019-11-27 | 2021-05-28 | 中车唐山机车车辆有限公司 | Control circuit |
-
2007
- 2007-09-04 CN CNU2007201729620U patent/CN201118277Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951722A (en) * | 2010-10-15 | 2011-01-19 | 中冶北方工程技术有限公司 | Energy-saving type emergency lighting distribution box |
| CN103580278A (en) * | 2013-11-06 | 2014-02-12 | 北京鼎汉技术股份有限公司 | Automatic control system and method of signal power supply panel |
| CN103580277A (en) * | 2013-11-06 | 2014-02-12 | 北京鼎汉技术股份有限公司 | Cold-standby switching system for remotely-controlled parallel power supply panels |
| CN103647344A (en) * | 2013-11-25 | 2014-03-19 | 衡阳泰豪通信车辆有限公司 | An oil engine interlock apparatus, a power supply device, and a method for supplying power for a square cabin device |
| CN103647344B (en) * | 2013-11-25 | 2019-06-07 | 衡阳泰豪通信车辆有限公司 | Oil machine interlock, power supply unit and the method powered to square cabin apparatus |
| CN106681266A (en) * | 2017-01-13 | 2017-05-17 | 北京航天自动控制研究所 | Redundancy switching circuit and method of parallel PLCs (programmable logic controllers) |
| CN106681266B (en) * | 2017-01-13 | 2019-04-09 | 北京航天自动控制研究所 | A kind of redundancy switching circuit and method of parallel connection PLC |
| CN112865285A (en) * | 2019-11-27 | 2021-05-28 | 中车唐山机车车辆有限公司 | Control circuit |
| CN112865285B (en) * | 2019-11-27 | 2023-10-31 | 中车唐山机车车辆有限公司 | Control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080917 |
|
| CX01 | Expiry of patent term |