CN101428636B - Safety cut-out for joint-less track circuit - Google Patents
Safety cut-out for joint-less track circuit Download PDFInfo
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- CN101428636B CN101428636B CN2008102102837A CN200810210283A CN101428636B CN 101428636 B CN101428636 B CN 101428636B CN 2008102102837 A CN2008102102837 A CN 2008102102837A CN 200810210283 A CN200810210283 A CN 200810210283A CN 101428636 B CN101428636 B CN 101428636B
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Abstract
The invention provides a protector for a jointless track circuit which is small and has simple construct, easy maintenance, high reliability and can accurately prevent burn-out of a cable side. The protector for the jointless track circuit comprises a protector (10) and another protector (20) connected thereon. The protector (10) comprises an LC syntonizer (12) connected to a boundary point of a first and a second jointless track circuits (1-i, 2-j) for picking up a signal wave flowing on the jointless track circuit (1-i); and a protective device (13) for inhibiting an excessive abnormal voltage generated between the first and the second jointless tack circuits and releasing the excessive abnormal voltage. The protector (20) comprises a matching transformer for transferring the picked-up signal wave to an ATC transceiver (26) through cables (25-1, 25-2).
Description
Technical field
The present invention relates to a kind of safety cut-out for joint-less track circuit (protector) that is connected on such jointless track circuit (jointlesstrack circuit) such as the Shinkansen.
Background technology
Adopting in the low speed train of for example existing railway etc. has: signalization machine on the ground, chaufeur on one side acknowledgment signal on one side with the method for manual control rate etc.In contrast to this, in the high speed train of the Shinkansen etc., in order to prevent that dangerous the employing to guarantee safety from having: the automatic train control device (Automatic Train Control is hereinafter referred to as " ATC device ") of the cab signal mode of shows signal and the control of braking automatically etc. on operating console.The ATC device for example has the such function in following (1)～(3).
(1) cab signal Presentation Function
Corresponding to the interval of leading train and the condition of circuit etc., with the expression train the signal of allowing moving velocity be presented on the operating console continuously.
(2) automatic deceleration controllable function
All the time signal indicated speed and train speed are compared, the indicated speed of signal is above just to make brake work slowing down automatically if train speed becomes, and just loosens brake when following when becoming specified speed.
Deceleration control function when (3) stop in the station etc.
Corresponding near track switch (turnout), enter parking area etc., slow down automatically, stop control.
The ATC device comprises: overground installation, and detect having or not of train, and come to understand the state of train interval, line condition and the place ahead course by linkage based on these data, transmit the permissible speed signal of needs to train according to its result; And bus equipment, the signal of understanding them is to carry out the speed control of vehicle.Overground installation utilizes formations such as track circuit and transceiver, uses the ATC signal current is flow to track circuit mode on the rail (rail).In track circuit, have insulated track circuit (insulated track circuit) and jointless track circuit.
There is the insulated track circuit for example to carry out the detection of train and the transmission of ATC signal simultaneously by transceiver.Be provided with rail insulation seam and impedance bond (impedance bond) with the border of contiguous track circuit.Impedance bond has to be flowed signal current and makes the mobile function of flyback current (return current) of getting back to substation from vehicle.On each impedance bond, be connected with protective device and voltage transformer respectively.A plurality of protectors and voltage transformer are concentrated on the ATC transceiver that is provided with to remote by cable connection.
In the insulated track circuit was arranged, under the situation that does not have train on the track circuit, the signal current of sending here from mains side flow to the electric receiving end of opposition side, and track relay is carried out excitation.At this state is under the state of " no train ", when train enters this interval, owing to make left and right sides rail short circuit by wheel/axletree, so the demagnetization of signal current stream less than track relay.For under the state of " train is arranged ", the situation of train is arranged as the place ahead under the out-of-run situation of relay at this state, the rear is sent the signal of assigned frequency.In the method, so have can universal train detect with and the electric current used of signal and then the advantage that under the situation that rail is lost, secure side is worked because become " train is arranged " by demagnetization, but the shortcoming that needs the rail insulation seam and comparatively guard and become easily the weakness on the intensity is arranged.
In following patent documentation 1, put down in writing such technology that the insulated track circuit is arranged, and then having put down in writing there be the technology of insulated track circuit with ground receiving device and train controller in following patent documentation 3.
In contrast to this, jointless track circuit is safeguarded the advantage of simplifying owing to do not have impedance bond and rail insulation thing etc. so the saving funds are arranged and can make.But,,,, can produce interference with this interval signal so can flow into to the signal that sends between the adjacent country owing on the border of track circuit, do not stop the function of signal as record in the following patent documentation 2.Therefore, manage to switch that down column signal is so that it flows to track circuit etc., promptly this signal is: need the train detection signal that sends all the time and just need send to the ATC signal of its track circuit during only at train injection circuit and at rail.
Patent documentation 1: the flat 9-2270 communique of Japanese Patent Application Publication
Patent documentation 2: the flat 9-301173 communique of Japanese Patent Application Publication
Patent documentation 3: Japanese Patent Application Publication 2002-337686 communique
But,,, but be not fit to as safety cut-out for joint-less track circuit though have insulated track circuit protector as prior art.
As safety cut-out for joint-less track circuit, following responsibility is for example arranged.
Be used for train rail detect and with the track circuit of the information transmit-receive of train, owing to rail is used in the reflux line of the electric circuit that the electric car electric current uses, so because of be used for when the train operation train rail detect and with the regular signal wave of the information transmit-receive of train outside the influence etc. of electric car electric current, can sneak into various noises such as many electric car current first harmonics and high order harmonic.Therefore, under the situation that the noise more than certain allowed value is sneaked into, the responsibility of utilizing the safety cut-out for joint-less track circuit block noise is arranged, so that abnormal voltage and abnormal current are flowed into be connected to remote cable one side of concentrating the ATC transceiver that is provided with etc.On the other hand, under the situation that the noise below certain allowed value is sneaked into, safety cut-out for joint-less track circuit does not carry out protection work, and the responsibility of normally carrying out the transmitting-receiving of regular signal is arranged.
Because safety cut-out for joint-less track circuit has such responsibility, thus can not directly use in the past the technology of insulated track circuit with protector arranged, be difficult to realize accurately preventing the high safety cut-out for joint-less track circuit of the reliability that burns out of cable side.
In addition, as described above, in the insulated track circuit is arranged, between rail and protector, be provided with impedance bond.Therefore, the abnormal current of when earth fault (grounding fault), invading from rail side direction signal cable side, its major part is suppressed by impedance bond, therefore, be provided in the protector of level behind the impedance bond, as long as in the performance that has regulation aspect the electric current tolerance, do not need to have special High Performance.For example, when earth fault, the situation that produces the abnormal current about 10000A from rail side direction signal cable side is arranged, but because the major part of abnormal current is suppressed by impedance bond, so as long as protector has the electric current tolerance about 500A.
On the other hand, as described above, impedance bond is not set in jointless track circuit.Therefore, for example because earth fault produces under the situation of the abnormal current about 10000A from rail side direction signal cable side, the big abnormal current that has (about 1/2nd) about 5000A is invaded and the possibility of coming to protector.Here, as a scheme, general consider that the applied current tolerance is performance-oriented (for example about 5000A) respectively about protector itself with as the inductance of attached inscape and electric capacity etc. at this problem.But, when the applied current tolerance is performance-oriented respectively, can produce the evils that very large-scale, manufacturing cost also significantly rises that become of protector integral body.In addition, because protector integral body becomes large-scale, must guarantee the bigger problem that the space is set so also can produce.
Summary of the invention
The purpose of this invention is to provide a kind of high safety cut-out for joint-less track circuit of the reliability that burns out fairly simple, small-sized, that safeguard easily and can prevent exactly cable side of constructing.
In order to reach above-mentioned purpose, the safety cut-out for joint-less track circuit of first invention is characterized in that possessing first and second protector.Here, described first protector has: extract circuit, be connected on the boundary point of first and second jointless track circuit of parallel laid, be extracted in the signal wave that flows on described first jointless track circuit; And first protective device, be suppressed at the excessive abnormal voltage that produces between described first and second jointless track circuit and discharge excessive abnormal current.And then described second protector is connected on described first protector, will pass on transceiver via the ATC of first cable to device side at the described signal wave of described extraction circuit extraction.
In addition, the safety cut-out for joint-less track circuit of second invention is in the safety cut-out for joint-less track circuit of described first invention the 3rd protector to be set.Here, described the 3rd protector has: current transformer (converter), be connected on described first protector, the difference of the electric car electric current that detection is flowed in described first and second jointless track circuit and the ATC electric current of being received and dispatched, this detection electric current is carried out voltage transitions, send to monitor apparatus via second cable.
According to first and second invention; by utilizing first protective device that in first protector of the boundary point side of jointless track circuit, is provided with; abnormal current and abnormal voltage when discharging, suppressing feed class accident; thereby can protect second and third protector, consequently can prevent to be connected burning out of first and second cable side on this second and third protector exactly.Therefore, can realize constructing the high safety cut-out for joint-less track circuit of the reliability that burns out fairly simple, small-sized, that safeguard easily and can prevent exactly cable side, can stablizing, transporting safely and make contributions to the train that uses jointless track circuit.
Description of drawings
Fig. 1 is the summary construction diagram of the safety cut-out for joint-less track circuit of the expression embodiment of the invention 1.
Fig. 2 is the summary construction diagram of the safety cut-out for joint-less track circuit of the expression embodiment of the invention 2.
Fig. 3 is the summary construction diagram of the safety cut-out for joint-less track circuit of the expression embodiment of the invention 3.
Fig. 4 is the summary construction diagram of the safety cut-out for joint-less track circuit of the expression embodiment of the invention 4.
Fig. 5 is the summary construction diagram of the safety cut-out for joint-less track circuit of the expression embodiment of the invention 5.
Fig. 6 is the summary construction diagram of the safety cut-out for joint-less track circuit of the expression embodiment of the invention 6.
Fig. 7 is the summary construction diagram of the safety cut-out for joint-less track circuit of the expression embodiment of the invention 7.
Fig. 8 is the summary construction diagram of the safety cut-out for joint-less track circuit of the expression embodiment of the invention 8.
Fig. 9 is the constructional drawing of the protective device that is provided with in first protector of Fig. 1～shown in Figure 8.
Figure 10 is other constructionals drawing of the protective device that is provided with in first protector of Fig. 1～shown in Figure 8.
Description of reference numerals
First, second jointless track circuit of 1-i, 2-j
10,10A, 10B first protector
The 12LC resonator
13,13A, 13B protective device
20,20A second protector
22,22A transformer
23,23-1A, 23-2A, 32 discharge bulbs
25-1,25-2 first cable
The 26ATC transceiver
30 the 3rd protectors
31 current transformers
34-1,34-2 second cable
35 monitor apparatus
The specific embodiment
When contrast accompanying drawing when understanding the explanation of following preferred embodiment, just can understand above-mentioned purpose and new feature with other of the present invention more completely.Wherein, following accompanying drawing is mainly used in explanation, and it not delimit the scope of the invention.
[embodiment 1]
(formation of embodiment 1)
Fig. 1 is the summary construction diagram of the safety cut-out for joint-less track circuit of the expression embodiment of the invention 1.
This safety cut-out for joint-less track circuit comprises respectively: first, second jointless track circuit 1-i, 2-j that 2 parallel steel rails passing through at train TR constitute are (wherein, i=1～n, j=1～n, n are a plurality of) each boundary point on first and second protector 10,20 of bonded assembly.First protector 10 in first and second protector 10,20 has two couples input and output terminal 11-1,11-2 and input and output terminal 14-1,14-2, wherein a pair of input and output terminal 11-1,11-2 are electrically connected the boundary point of first, second track circuit 1-i, 2-j, another to input and output terminal 14-1,14-2 on, be electrically connected with second protector 20.
That is, first protector 10 has: input and output terminal 11-1 is connected on the boundary point of first jointless track circuit (being designated hereinafter simply as " first track circuit ") 1-i; And input and output terminal 11-2, be connected on the boundary point of second jointless track circuit (being designated hereinafter simply as " second track circuit ") 2-j, wherein input and output terminal 14-1 is connected on this input and output terminal 11-1 via extracting circuit (for example LC resonator) 12, and input and output terminal 14-2 is connected on this input and output terminal 11-2.Between input and output terminal 14-1 and input and output terminal 14-2, be connected with first protective device 13 with discharging gap etc.
Coupling is with the coupling that transformer 22 carries out the impedance of the impedance of first, second track circuit 1-i, 2-j side and the first cable 25-1,25-2 side, be used in train the rail detection and with the Min. that decays to of the signal wave of the information transmit-receive of train TR.As the defencive function of this coupling with transformer 22; withstand voltage with between the first cable 25-1,25-2 side and first, second track circuit 1-i, 2-j side and the earth; guarantee for more than the abnormal voltage that produces when the feed system accident of electric car electrical source of power; what prevent that withstand voltage destruction between the earth of the first cable 25-1,25-2 side from causing burns out; and use the wiring of the following abnormal current of the certain value can withstand between first, second track circuit 1-i, the 2-j that protective device 13 can not protect; thus, coupling becomes the structure that is not easy to destroy with transformer 22.This coupling for example is about AC5KV/1 minute with the withstand voltage of transformer 22.With the lightning-arrest pipe 23 that the intensity coil of transformer 22 is connected in parallel, invade final grade protection of the noise of the first cable 25-1,25-2 side with respect to coupling.
(work of embodiment 1)
On the boundary point of the first track circuit 1-i and the second track circuit 2-j, flow through about equally the electric car electric current of difference between current below allowed value (for example approximately about 100A).In this electric car electric current, also comprise be used for train rail detect and with the signal wave of the information transmit-receive of train TR.LC resonator 12 is at the signal wave of this signal wave frequency low-resonance to select ATC to need.Selecteed signal wave is carried to ATC transceiver 26 with transformer 22 and cable 25-1,25-2 via coupling, carry out automatically train TR speed control and deceleration, stop control etc.
When producing earth fault in the feed system that is used for the electric car electrical source of power or produce track circuit (rail) fracture when waiting, can generation between first and second track circuit 1-i, 2-j excessive abnormal voltage or flow through excessive abnormal current.So, making protective device 13 discharges by LC resonator 12, and make short circuit between input and output terminal 14-1 and the 14-2, excessive abnormal current is discharged, and excessive abnormal voltage is suppressed.Thus, because abnormal voltage and abnormal current do not invade to cable 25-1,25-2 side with transformer 22 from coupling, so can protect cable 25-1,25-2 and ATC transceiver 26 to avoid burning out etc.
If under the situation that protective device 13 is not set, for the abnormal current countermeasure of carrying out producing when the feed system earth fault of electric car electrical source of power, just the structure that mates with transformer 22 need be made excessive electric current tolerance, but because except the restriction of the restriction of size and cost, also can not guarantee the electric current tolerance technically, so coupling generally just thinks inevitable with the destruction of transformer 22 because of abnormal current is excessive.In addition, because coupling can not be guaranteed excessive electric current tolerance with transformer 22, so the method that the part of having to also to adopt setting to be equivalent to wire fuse is blocked abnormal current.
But, in present embodiment 1,,, can make influence become very little to train operation so under the normal condition beyond when these protective device 13 faults, can exempt blocking of circuit because be provided with protective device 13.
And then; coupling adopts following structure with transformer 22: by using the wiring of the abnormal current below the certain value that can withstand between first, second track circuit 1-i, the 2-j that protective device 13 can not protect, thereby make this coupling be not easy destruction with transformer 22.Thus, can be with between cable 25-1,25-2 side and first, second track circuit 1-i, 2-j side and the earth withstand voltage, more than the abnormal voltage of guaranteeing to produce when the feed system accident of electric car electrical source of power, what can prevent exactly that withstand voltage destruction between the earth of cable 25-1,25-2 side from causing burns out.And, because be connected in parallel to lightning-arrest pipe 23, so can invade final grade protection of the noise of cable 25-1,25-2 side with respect to the intensity coil that mates with transformer 22.
(effect of embodiment 1)
According to present embodiment 1; because the boundary point side at first, second track circuit 1-i, 2-j has connected protective device 13; so abnormal current and abnormal voltage during by release, inhibition feed class accident just can be protected LC resonator 12 and coupling transformer 22 etc.And then; the abnormal current of the grade that can not protect for protective device 13; electric current makes coupling have tolerance and release function with the internal wiring in transformer 22 and the LC resonator 12, is that minimal mode is coordinated can make coupling with the damage of transformer 22.And; because be provided with the lightning-arrest pipe 23 of the final fender guard of conduct with the intensity coil side of transformer 22 in coupling; even so the influence of hypothesis ground current etc. involve to coupling with under the situation of transformer 22; also can be by discharge bulb 23 discharge, prevent to be connected coupling burning out exactly with the first cable 25-1, the 25-2 that grow very much of the equipment side of transformer 22.
Like this, in present embodiment 1, can realize constructing the high safety cut-out for joint-less track circuit of the reliability that burns out fairly simple, small-sized, that safeguard easily and can prevent exactly cable side.Therefore, can make contributions to stable, the safe transport of the train TR that used jointless track circuit.
[embodiment 2]
(formation of embodiment 2)
Fig. 2 is the summary construction diagram of safety cut-out for joint-less track circuit of the expression embodiment of the invention 2, to Fig. 1 of expression embodiment 1 in key element be that common key element is given common Reference numeral.
In the safety cut-out for joint-less track circuit of present embodiment 2, first protector 10 of embodiment 1 is connected with the 3rd protector 30.The 3rd protector 30 comprises: current transformer 31, and it comprises two winding 31a, 31b and an intensity coil 31c; The 3rd protective device (the lightning-arrest pipe that for example has discharging gap) 32; And a pair of input and output terminal 33-1,33-2.
Winding 31a, a 31b of current transformer 31 are connected on input and output terminal 14-1, the 14-2 of first protector 10.Via this winding 31a, a 31b, input and output terminal 21-1, the 21-2 of second protector 20 is connected on input and output terminal 14-1, the 14-2 of first protector 10.On the two ends of the intensity coil 31c of current transformer 31, being connected in parallel to lightning-arrest pipe 32, and being connected with input and output terminal 33-1,33-2 respectively.Input and output terminal 33-1,33-2 are connected on the monitor apparatus 35 of canyon via the second cable 34-1,34-2.
Current transformer 31 detects the difference and the ATC electric current of being received and dispatched of the electric car electric current that flows and makes on its monitor apparatus that is presented at canyon 35 in first, second track circuit 1-i, 2-j.Defencive function as current transformer 31; withstand voltage with between the second cable 34-1,34-2 side and first, second track circuit 1-i, 2-j side and the earth; guarantee for more than the abnormal voltage that takes place when the feed system accident of electric car electrical source of power; what prevent that withstand voltage destruction between the earth of the second cable 34-1,34-2 side from causing burns out; and use the wiring of the following abnormal current of the certain value can withstand between first, second track circuit 1-i, the 2-j that protective device 13 can not protect; thus, this current transformer 31 becomes the structure that is not easy to destroy.The withstand voltage of this current transformer 31 for example is about AC5KV/1 minute.With respect to the lightning-arrest pipe 32 that the intensity coil 31c of current transformer 31 is connected in parallel, invade the protection of final level of the noise of the second cable 34-1,34-2 side.
Other formation similarly to Example 1.
(work of embodiment 2)
At the difference of the mobile electric car electric current of the boundary point of the first track circuit 1-i and the second track circuit 2-j and the ATC electric current of being received and dispatched, detect by current transformer 31, this testing result is presented on the monitor apparatus 35 of canyon via cable 34-1,34-2, whether the difference that monitors this electric car electric current is below allowed value, and the monitor flows ATC electric current of rail etc. that becomes a mandarin out.
When producing earth fault in the feed system that is used for the electric car electrical source of power or produce the fracture etc. of track circuit, between first, second track circuit 1-i, 2-i, can produce excessive abnormal voltage or flow through excessive abnormal current.So, making protective device 13 discharges by LC resonator 12, and make short circuit between input and output terminal 14-1 and the 14-2, excessive abnormal current is discharged, and excessive abnormal voltage is suppressed.Thus; because abnormal voltage and abnormal current are not invaded and are not invaded to cable 34-1,34-2 side from current transformer 31 to cable 25-1,25-2 side with transformer 22 from coupling, so can protect cable 25-1,25-2,34-1,34-2 and ATC transceiver 26 to avoid burning out etc.
If under the situation that protective device 13 is not set, for the abnormal current countermeasure of carrying out producing when the feed system earth fault of electric car electrical source of power, just the structure that mates with transformer 22 and current transformer 31 need be made excessive electric current tolerance, but because except the restriction of the restriction of size and cost, also can not guarantee the electric current tolerance technically, so coupling generally just thinks inevitable with the destruction of transformer 22 and current transformer 31 because of abnormal current is excessive.In addition, because coupling can not be guaranteed excessive electric current tolerance with transformer 22 and current transformer 31, so the method that the part of having to also to adopt setting to be equivalent to wire fuse is blocked abnormal current.
But, in present embodiment 2, similarly to Example 1,,, can make influence become very little to train operation so under the normal condition beyond when these protective device 13 faults, can exempt blocking of circuit because be provided with protective device 13.
And then current transformer 31 adopts following structure: by using the wiring of the abnormal current below the certain value that can withstand between first and second track circuit 1-i, the 2-j that protective device 13 can not protect, thereby make this current transformer 31 be not easy to destroy.Thus, can be with between cable 34-1,34-2 side and first, second track circuit 1-i, 2-j side and the earth withstand voltage, more than the abnormal voltage of guaranteeing to produce for the feed system accident of electric car electrical source of power the time, what can prevent exactly that withstand voltage destruction between the earth of cable 34-1,34-2 side from causing burns out.And, because be connected in parallel to lightning-arrest pipe 32, so can invade final grade protection of the noise of cable 34-1,34-2 side with respect to the intensity coil 31c of current transformer 31.
(effect of embodiment 2)
According to present embodiment 2; similarly to Example 1; because the boundary point side at first, second track circuit 1-i, 2-j has connected protective device 13; so abnormal current and abnormal voltage during by release, inhibition feed class accident just can be protected LC resonator 12, coupling transformer 22 and current transformer 31 etc.And then; the abnormal current of the grade that can not protect for protective device 13; electric current makes coupling have tolerance and release function with the internal wiring in transformer 22, current transformer 31 and the LC resonator 12, is that minimal mode is coordinated can make coupling with the damage of transformer 22 and current transformer 31.And; because on the intensity coil 31c side of coupling, be provided with respectively as the final lightning- arrest pipe 23,32 of fender guard with the intensity coil side of transformer 22 and current transformer 31; even so involve to the situation of coupling with transformer 22 or current transformer 31 in the influence of hypothesis ground current etc.; also can prevent to be connected very long first cable 25-1, the 25-2 of equipment side and the burning out of second cable 34-1,34-2 of coupling exactly by these discharge bulb 23,32 discharges with transformer 22 and current transformer 31.
Like this, in present embodiment 2, can realize constructing the higher safety cut-out for joint-less track circuit of the reliability that burns out fairly simple, small-sized, that safeguard easily and can prevent exactly cable side.
[embodiment 3]
(formation of embodiment 3)
Fig. 3 is the summary construction diagram of safety cut-out for joint-less track circuit of the expression embodiment of the invention 3, to Fig. 2 of expression embodiment 2 in key element be that common key element is given common Reference numeral.
In the safety cut-out for joint-less track circuit of present embodiment 3, replace first protector 10 of embodiment 2, be provided with and the different protector 10A of its circuit formation.Protector 10A comprises: a pair of input and output terminal 11-1,11-2, and it is connected on the boundary point of first, second track circuit 1-i, 2-j; Protective device 13 is connected between this input and output terminal 11-1, the 11-2; LC resonator 12, the electrode of one side are connected on the input and output terminal 11-1; Input and output terminal 14-1 is connected on the opposing party's the electrode of this LC resonator 12; And input and output terminal 14-2, be connected on the input and output terminal 11-2.That is to say that in the protector 10A of present embodiment 3, protective device 13 is connected the boundary point side of first, second track circuit 1-i, 2-j, be connected with LC resonator 12 in second, third protector 20,30 sides of this protective device 13.Other formation similarly to Example 1.
(effect/effect of embodiment 3)
When producing earth fault in the feed system that is used for the electric car electrical source of power or produce track circuit fracture etc., between first, second track circuit 1-i, 2-j, can produce excessive abnormal voltage or flow through excessive abnormal current.So, protective device 13 discharges, and make short circuit between input and output terminal 11-1 and the 11-2, excessive abnormal current is discharged, and excessive abnormal voltage is suppressed.Thus; because abnormal voltage and abnormal current are not invaded with transformer 22 and current transformer 31 sides to LC resonator 12, coupling; so can protect these LC resonators 12, coupling to avoid burning out etc., and also can protect cable 25-1,25-2,34-1,34-2 and ATC transceiver 26 to avoid burning out etc. with transformer 22 and current transformer 31.And; because by protective device 13; can protect LC resonator 12, coupling transformer 22 and current transformer 31; so this LC resonator 12, coupling are diminished with the withstand voltage and anti-current characteristics of transformer 22 and current transformer 31; thus, can make the safety cut-out for joint-less track circuit miniaturization.
[embodiment 4]
(formation of embodiment 4)
Fig. 4 is the summary construction diagram of safety cut-out for joint-less track circuit of the expression embodiment of the invention 4, to Fig. 2 of expression embodiment 2 in key element be that common key element is given common Reference numeral.
In the safety cut-out for joint-less track circuit of present embodiment 4, replace first protector 10 of embodiment 2, be provided with and the different protector 10B of its circuit formation.Protector 10B comprises: a pair of input and output terminal 11-1,11-2, and it is connected on the boundary point of first, second track circuit 1-i, 2-j; LC resonator 12, the electrode of one side are connected on this input and output terminal 11-1; Input and output terminal 14-1 is connected via a winding 31a of current transformer 31 on the opposing party's the electrode of this LC resonator 12; Input and output terminal 14-2 is connected on the described input and output terminal 11-2 via a winding 31b of current transformer 31; And protective device 13, be connected between this input and output terminal 14-1, the 14-2.Other formation similarly to Example 2.
(effect/effect of embodiment 4)
When producing earth fault in the feed system that is used for the electric car electrical source of power or produce track circuit fracture etc., between track circuit 1-i and 2-j, can produce excessive abnormal voltage or flow through excessive abnormal current.So protective device 13 discharges via winding 31a, a 31b of LC resonator 12 and current transformer 31, and makes short circuit between input and output terminal 14-1 and the 14-2, excessive abnormal current is discharged, and excessive abnormal voltage is suppressed.Thus, because abnormal voltage and abnormal current do not invade with transformer 22 sides to coupling, thus can protect this coupling to avoid burning out etc. with transformer 22, and also can protect cable 25-1,25-2 and ATC transceiver 26 to avoid burning out etc.
Wherein, because be when excessive abnormal voltage and abnormal current generation, winding 31a, a 31b via LC resonator 12 and current transformer 31, make protective device 13 discharges, the formation that suppresses excessive abnormal voltage, so need set the withstand voltage and anti-current characteristics of LC resonator 12, current transformer 31 and protective device 13 bigger, to guarantee safety.
[embodiment 5]
(formation of embodiment 5)
Fig. 5 is the summary construction diagram of safety cut-out for joint-less track circuit of the expression embodiment of the invention 5, to Fig. 1 of expression embodiment 1 in key element be that common key element is given common Reference numeral.
In the safety cut-out for joint-less track circuit of present embodiment 5, connect the second new protector 20A on input and output terminal 24-1, the 24-2 of second protector 20 of embodiment 1, this protector 20A is connected on the ATC transceiver 26 via the first cable 25-1,25-2.Protector 20A possesses: two couples input and output terminal 21-1A, 21-2A and input and output terminal 24-1A, 24-2A; Coupling transformer 22A; And a plurality of second protective devices (two lightning-arrest pipes that for example, have discharging gap respectively) 23-1A, 23-2A.
Input and output terminal 21-1A, 21-2A are connected on input and output terminal 24-1, the 24-2 of protector 20.On this input and output terminal 21-1A and 21-2A, be connected in parallel to lightning-arrest pipe 23-1A and coupling a winding respectively with transformer 22A.On the intensity coil of coupling, be connected in parallel to lightning-arrest pipe 23-2A, and be connected with input and output terminal 24-1A, 24-2A at the two ends of this intensity coil with transformer 22A.Lightning-arrest pipe 23-2A invades final grade protection of the noise of the first cable 25-1,25-2 side.Input and output terminal 24-1A, 24-2A are connected on the ATC transceiver 26 via the first cable 25-1,25-2.
For example, at the point of connection of the first cable 25-1,25-2 and under the long apart distance situation of (for example about 100m) of the point of connection of first and second track circuit 1-i, 2-j, in the formation of embodiment 1, added long cable in low-impedance part, be used for train and detect and can increase with the transmission loss of the signal wave of the information transmit-receive of train TR at rail.Therefore, in present embodiment 5, near first and second track circuit 1-i, 2-j, protector 10 and 20 are set,,, this protector 20A are connected on the branch point of the first cable 25-1,25-2 via long cable connection protector 20A to this protector 20.By protector 20A, the output impedance of protector 10 and 20 and cable resistance coupling are made the transmission minimization of loss of signal wave.Other formation similarly to Example 1.
(effect/effect of embodiment 5)
When producing earth fault in the feed system that is used for the electric car electrical source of power or produce track circuit fracture etc., between first and second track circuit 1-i, 2-j, can produce excessive abnormal voltage or flow through excessive abnormal current.So in first protector 10, protective device 13 makes short circuit between input and output terminal 14-1 and the 14-2 via 12 discharges of LC protective device, excessive abnormal current is discharged, and excessive abnormal voltage is suppressed.Thus, because abnormal voltage and abnormal current do not invade to second protector 20,20A side, thus can protect these second protectors 20,20A to avoid burning out etc., and also can protect cable 25-1,25-2 and ATC transceiver 26 to avoid burning out etc.And, because, can protect second protector 20,20A,, thus, can make the safety cut-out for joint-less track circuit miniaturization so the withstand voltage and anti-current characteristics of this second protector 20,20A is diminished by protective device 13.
Particularly, because in second protector 20 and 20A side, the coupling with 2 grades is with transformer 22,22A, so compared with embodiment 1, the ability of protection abnormal voltage and abnormal current can improve, and can positively protect cable 25-1,25-2 etc.In addition, can make the transmission minimization of loss of signal wave by transformer 22A.
[embodiment 6]
(formation of embodiment 6)
Fig. 6 is the summary construction diagram of safety cut-out for joint-less track circuit of the expression embodiment of the invention 6, to Fig. 5 of the Fig. 2 of embodiment 2 and embodiment 5 in key element be that common key element is given common Reference numeral.
In the safety cut-out for joint-less track circuit of present embodiment 6, on second protector 20 of embodiment 2, connect the second protector 20A of embodiment 5, this protector 20A is connected to ATC transceiver 26 via the first cable 25-1,25-2.Other formation similarly to Example 2.
(effect/effect of embodiment 6)
When producing earth fault in the feed system that is used for the electric car electrical source of power or produce track circuit fracture etc., between first and second track circuit 1-i, 2-j, can produce excessive abnormal voltage or flow through excessive abnormal current.So in first protector 10, protective device 13 makes short circuit between input and output terminal 14-1 and the 14-2 via 12 discharges of LC protective device, excessive abnormal current is discharged, and excessive abnormal voltage is suppressed.Thus; because abnormal voltage and abnormal current are not invaded to second protector 20,20A and the 3rd protector 30 sides; so can protect these protectors 20,20A, 30 to avoid burning out etc., and also can protect cable 25-1,25-2,34-1,34-2 and ATC transceiver 26 to avoid burning out etc.And; because by protective device 13; can protect second protector 20,20A and the 3rd protector 30; so these protectors 20,20A, 30 withstand voltage and anti-current characteristics are diminished; thus; same with embodiment 2 and embodiment 5, can make the safety cut-out for joint-less track circuit miniaturization.
[embodiment 7]
(formation of embodiment 7)
Fig. 7 is the summary construction diagram of safety cut-out for joint-less track circuit of the expression embodiment of the invention 7, to Fig. 5 of the Fig. 3 of embodiment 3 and embodiment 5 in key element be that common key element is given common Reference numeral.
In the safety cut-out for joint-less track circuit of present embodiment 7, on second protector 20 of embodiment 3, connect the second protector 20A of embodiment 5, this protector 20A is connected to ATC transceiver 26 via the first cable 25-1,25-2.Other formation similarly to Example 3.
(effect/effect of embodiment 7)
In the safety cut-out for joint-less track circuit of present embodiment 7, can obtain and embodiment 3 and roughly same effect and the effect of embodiment 5.Particularly mate with transformer 22,22A because of have two-stage in second protector 20,20A side, thus same with embodiment 3 and embodiment 5, to the protective capacities raising of abnormal voltage and abnormal current, can positively protect cable 25-1,25-2 etc.
[embodiment 8]
(formation of embodiment 8)
Fig. 8 is the summary construction diagram of safety cut-out for joint-less track circuit of the expression embodiment of the invention 8, to Fig. 5 of the Fig. 4 of embodiment 4 and embodiment 5 in key element be that common key element is given common Reference numeral.
In the safety cut-out for joint-less track circuit of present embodiment 8, on second protector 20 of embodiment 4, connect the second protector 20A of embodiment 5, this protector 20A is connected to ATC transceiver 26 via the first cable 25-1,25-2.Other formation similarly to Example 4.
(effect/effect of embodiment 8)
In the safety cut-out for joint-less track circuit of present embodiment 8, can play and embodiment 4 and roughly same effect and the effect of embodiment 5.Particularly mate with transformer 22,22A because of have two-stage in second protector 20,20A side, thus same with embodiment 4 and embodiment 5, to the protective capacities raising of abnormal voltage and abnormal current, can positively protect cable 25-1,25-2 etc.
(variation)
The present invention is not limited to the foregoing description, can carry out various utilize mode and distortion.Utilize mode and variation as this, following (a)～(d) for example arranged.
(a) Fig. 9 is Fig. 1～first protector 10 shown in Figure 8, the constructional drawing of the interior protective device that is provided with of 10A, 10B.Among this protective device 13A, two lightning- arrest pipe 13a, 13b are connected in series, and are connected in parallel to resistor 13c, the 13d that usefulness is blocked in afterflow at this respectively on each lightning-arrest pipe 13a, 13b.Afterflow refers to, when lightning-arrest plumber does under abnormal voltage, and the phenomenon that after abnormal voltage disappears, also continues to discharge by institute's bonded assembly power supply voltage.Use such protective device 13A, also can obtain the action effect roughly same, the effect that can block afterflow by resistor 13c, 13d is arranged on this basis with the protective device 13 of embodiment.
(b) Figure 10 is Fig. 1～first protector 10 shown in Figure 8, other constructionals drawing of the interior protective device that is provided with of 10A, 10B.Among this protective device 13B, three lightning- arrest pipe 13a, 13b, 13e are connected in series, and are connected in parallel to resistor 13c, 13d, the 13f that usefulness is blocked in afterflow at this respectively on each lightning- arrest pipe 13a, 13b, the 13e.
Among near first protector 10 that is provided with the boundary point of first and second track circuit 1-i, 2-j, 10A, the 10B, protective device 13 comprises 2 lightning- arrest pipe 13a, 13b that are connected in series.But, because first protector 10,10A, 10B are arranged on the position of the influence that is subjected to abnormal voltage and abnormal current easily, so, just can guarantee high reliability by using the lightning-arrest pipe of a plurality of (about for example 2～5, being 3) high electric current tolerance at Figure 10.
(c) also Fig. 1 and first protector 10 shown in Figure 5 can be replaced as Fig. 3, Fig. 4, Fig. 7 and the first protector 10A, 10B shown in Figure 8.
(d) though in an embodiment, use lightning- arrest pipe 13a, 13b, 23,23-1A, 23-2A, 32, also can replace these, and the quartz conductor protective element (SSPD) of use energy high-speed response waits other protective element with discharging gap as protective device.
Claims (13)
1. safety cut-out for joint-less track circuit is characterized in that possessing:
First protector, it has: extract circuit, be connected on the boundary point of first and second jointless track circuit of parallel laid, be extracted in the signal wave that flows on described first jointless track circuit; And first protective device, be suppressed at the excessive abnormal voltage that produces between described first and second jointless track circuit and discharge excessive abnormal current; And
Second protector is connected on described first protector, will pass on transceiver to the driverless train control of device side via first cable at the described signal wave of described extraction circuit extraction.
2. safety cut-out for joint-less track circuit according to claim 1 is characterized in that,
Described first protector comprises: described extraction circuit is connected on the boundary point of described first jointless track circuit; And described first protective device, be connected between described extraction circuit and described second jointless track circuit,
The multistage transformer that described second protector has one-level or is connected in parallel, this transformer is connected on described first protective device, to pass on transceiver to the described driverless train control of described device side via described first cable at the described signal wave of described extraction circuit extraction, and the impedance of described first and second jointless track circuit side and described device side is mated.
3. safety cut-out for joint-less track circuit according to claim 1 is characterized in that,
Described first protector comprises: described first protective device is connected between the boundary point of described first and second jointless track circuit; And described extraction circuit, be connected on the boundary point of described first jointless track circuit,
The multistage transformer that described second protector has one-level or is connected in parallel, this transformer is connected on described extraction circuit and described second jointless track circuit, to pass on transceiver to the described driverless train control of described device side via described first cable at the described signal wave of described extraction circuit extraction, and the impedance of described first and second jointless track circuit side and described device side is mated.
4. safety cut-out for joint-less track circuit according to claim 1 is characterized in that,
This safety cut-out for joint-less track circuit also possesses:
The 3rd protector, it has: current transformer, be connected on described first protector, the difference of the electric car electric current that detection is flowed in described first and second jointless track circuit and the driverless train control current of being received and dispatched, this detection electric current is carried out voltage transitions, and send to monitor apparatus via second cable.
5. safety cut-out for joint-less track circuit according to claim 4 is characterized in that,
Described first protector comprises: described extraction circuit is connected on the boundary point of described first jointless track circuit; And described first protective device, be connected between described extraction circuit and described second jointless track circuit,
Described current transformer in described the 3rd protector has: a winding is connected on described first protective device; And intensity coil, corresponding to a described winding,
The multistage transformer that described second protector has one-level or is connected in parallel, this transformer is connected on described first protective device via a described winding of described current transformer, to pass on transceiver to the described driverless train control of described device side via described first cable at the described signal wave of described extraction circuit extraction, and the impedance of described first and second jointless track circuit side and described device side is mated.
6. safety cut-out for joint-less track circuit according to claim 4 is characterized in that,
Described first protector comprises: described first protective device is connected between the boundary point of described first and second jointless track circuit; And described extraction circuit, be connected on the boundary point of described first jointless track circuit,
Described current transformer in described the 3rd protector has: a winding is connected on described extraction circuit and described second jointless track circuit; And intensity coil, corresponding to a described winding,
The multistage transformer that described second protector has one-level or is connected in parallel, this transformer is connected on described extraction circuit and described second jointless track circuit via a described winding of described current transformer, to pass on transceiver to the described driverless train control of described device side via described first cable at the described signal wave of described extraction circuit extraction, and the impedance of described first and second jointless track circuit side and described device side is mated.
7. safety cut-out for joint-less track circuit according to claim 4 is characterized in that,
Described first protector comprises: described extraction circuit is connected on the boundary point of described first jointless track circuit; And described first protective device, via a winding of the described current transformer in described the 3rd protector, be connected between described extraction circuit and described second jointless track circuit,
Described current transformer in described the 3rd protector has: a described winding; And intensity coil, corresponding to a described winding,
The multistage transformer that described second protector has one-level or is connected in parallel, this transformer is connected on described first protective device, to pass on transceiver to the described driverless train control of described device side via described first cable at the described signal wave of described extraction circuit extraction, and the impedance of described first and second jointless track circuit side and described device side is mated.
8. according to each described safety cut-out for joint-less track circuit of claim 1 to 7, it is characterized in that described extraction circuit comprises: the LC resonator of be connected in series electric capacity and coil.
9. according to each described safety cut-out for joint-less track circuit of claim 1 to 7, it is characterized in that described first protective device comprises: a plurality of lightning-arrest pipe that is connected in series.
10. according to each described safety cut-out for joint-less track circuit of claim 1 to 7, it is characterized in that described second protector has: second protective device is connected in parallel on the intensity coil of described transformer.
11. safety cut-out for joint-less track circuit according to claim 10 is characterized in that, described second protective device comprises lightning-arrest pipe.
12. each the described safety cut-out for joint-less track circuit according to claim 4 to 7 is characterized in that, described the 3rd protector has: the 3rd protective device is connected in parallel on the intensity coil of described current transformer.
13. safety cut-out for joint-less track circuit according to claim 12 is characterized in that, described the 3rd protective device comprises lightning-arrest pipe.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-289226 | 2007-11-07 | ||
| JP2007289226A JP4975589B2 (en) | 2007-11-07 | 2007-11-07 | Non-insulated track circuit protector |
| JP2007289226 | 2007-11-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101428636A CN101428636A (en) | 2009-05-13 |
| CN101428636B true CN101428636B (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102102837A Expired - Fee Related CN101428636B (en) | 2007-11-07 | 2008-08-11 | Safety cut-out for joint-less track circuit |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4975589B2 (en) |
| CN (1) | CN101428636B (en) |
| HK (1) | HK1131373A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5674361B2 (en) * | 2010-07-08 | 2015-02-25 | 株式会社サンコーシヤ | Protector |
| CN113178713B (en) * | 2021-04-30 | 2022-09-09 | 深圳科安达电子科技股份有限公司 | Signal equipment grounding method |
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|---|---|---|---|---|
| US5045787A (en) * | 1989-12-27 | 1991-09-03 | General Signal Corporation | Apparatus and method for measuring insulated track joint resistances |
| JP2002337686A (en) * | 2001-05-17 | 2002-11-27 | East Japan Railway Co | Insulated track circuit ground receiving device and train control device |
| CN2626811Y (en) * | 2003-06-27 | 2004-07-21 | 黑龙江瑞兴科技股份有限公司 | Checking apparatus for electrical isolation state of non-insulated track circuit |
| CN2698672Y (en) * | 2004-04-15 | 2005-05-11 | 刘照亮 | Track circuit protector for steel railway crossing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6084360U (en) * | 1983-11-15 | 1985-06-11 | 株式会社京三製作所 | Vehicle detection device for non-insulated track circuits |
| JP2567405B2 (en) * | 1987-07-20 | 1996-12-25 | 株式会社 昭電 | Repeater protection circuit |
| JPH0381425U (en) * | 1989-12-11 | 1991-08-20 | ||
| JP2844561B2 (en) * | 1996-03-15 | 1999-01-06 | 株式会社京三製作所 | Track circuit fault point location device |
| JP2840064B2 (en) * | 1996-09-20 | 1998-12-24 | 株式会社京三製作所 | ATC device transmitter failure detection device |
| JPH1118292A (en) * | 1997-06-26 | 1999-01-22 | Omron Corp | Induction dc power unit on pole |
| JP4132493B2 (en) * | 1999-10-21 | 2008-08-13 | 日本信号株式会社 | Automatic train control device |
| JP2003165440A (en) * | 2001-11-29 | 2003-06-10 | Daido Signal Co Ltd | Protector for controlling grade crossing |
| JP2005238883A (en) * | 2004-02-24 | 2005-09-08 | Daido Signal Co Ltd | Train detecting device |
| JP4586386B2 (en) * | 2004-03-16 | 2010-11-24 | 株式会社国際電気通信基礎技術研究所 | Segment-connected speech synthesizer and method |
-
2007
- 2007-11-07 JP JP2007289226A patent/JP4975589B2/en active Active
-
2008
- 2008-08-11 CN CN2008102102837A patent/CN101428636B/en not_active Expired - Fee Related
-
2009
- 2009-10-19 HK HK09109626.4A patent/HK1131373A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5045787A (en) * | 1989-12-27 | 1991-09-03 | General Signal Corporation | Apparatus and method for measuring insulated track joint resistances |
| JP2002337686A (en) * | 2001-05-17 | 2002-11-27 | East Japan Railway Co | Insulated track circuit ground receiving device and train control device |
| CN2626811Y (en) * | 2003-06-27 | 2004-07-21 | 黑龙江瑞兴科技股份有限公司 | Checking apparatus for electrical isolation state of non-insulated track circuit |
| CN2698672Y (en) * | 2004-04-15 | 2005-05-11 | 刘照亮 | Track circuit protector for steel railway crossing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4975589B2 (en) | 2012-07-11 |
| CN101428636A (en) | 2009-05-13 |
| JP2009113646A (en) | 2009-05-28 |
| HK1131373A1 (en) | 2010-01-22 |
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