CN216424424U - Inductance box and coding system - Google Patents

Abstract

The utility model relates to an inductance box and coding system, inductance box include shell and internal circuit, one side of shell is equipped with first through-hole, second through-hole in proper order, first through-hole department is fixed with first wiring ring, second through-hole department is fixed with second wiring ring, internal circuit includes inductance L, inductance L's one end with first wiring ring electricity is connected, inductance L's the other end with second wiring ring electricity is connected. The device has solved when the frequency shift information is overlapped at 50Hz interchange track circuit, keeps apart the frequency shift information in 50Hz interchange track circuit, can prevent effectively that the frequency shift information from being shunted by 50Hz interchange track circuit equipment, makes the frequency shift signal flow to the track, guarantees the reliable and stable work of cab signal.

Description

Inductance box and coding system

Technical Field

The utility model relates to a track circuit field, concretely relates to inductance box and coding system.

Background

At present, ZPW-2000 series frequency shift track circuits are adopted in the ordinary speed railway section in China, and a 50Hz alternating current track circuit or a 25Hz phase-sensitive track circuit is generally adopted in an in-station or semi-automatic blocked approach section. When the locomotive enters the station or the proximity zone, it is not possible to receive the frequency shift information, and for reliable operation of the locomotive signal, the track circuit in the station and the proximity zone needs to be encoded. ZPW-2000A information is superposed and pre-superposed in a 50Hz alternating current track circuit or a 25Hz phase-sensitive track circuit. When the locomotive runs at a station or an approaching section, the locomotive signal can receive ZPW-2000A information which is the same as the section, so that the locomotive signal can work reliably.

After coding is applied to the 50Hz alternating current track circuit in the station or close to the section, the 50Hz information and the frequency shift information can be simultaneously transmitted to the track. When the 50Hz information and the frequency shift information are simultaneously transmitted to the track, they interfere with each other, thereby affecting the stability of the cab signal.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides an inductance box and coding system has solved when the information frequently is shifted in the stack of 50Hz alternating current track circuit, keeps apart the information frequently that shifts in 50Hz alternating current track circuit, can prevent effectively that the information frequently that shifts from being shunted by 50Hz alternating current track circuit equipment, makes the signal flow direction track frequently that shifts, guarantees the reliable and stable work of cab signal.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

the utility model provides an inductance box, including shell and internal circuit, one side of shell is equipped with first through-hole, second through-hole in proper order, first through-hole department is fixed with first wiring ring, second through-hole department is fixed with second wiring ring, internal circuit includes inductance L, inductance L's one end with first wiring ring electricity is connected, inductance L's the other end with second wiring ring electricity is connected.

The utility model also provides a coding system, which comprises a 50Hz power supply screen, a track transformer, a relay transformer, a 50Hz receiver, a first capacitance inductance box, a second capacitance inductance box, a four-terminal capacitance, a variable resistor and the inductance box;

the track transformer is a power transmission end track transformer, the relay transformer is a power receiving end relay transformer, one output end of the 50Hz power supply screen is connected to one input end of the track transformer through the first capacitance and inductance box, the other output end of the 50Hz power supply screen is connected to the other input end of the track transformer, and one output end of the track transformer is connected to one track; the other output end of the track transformer is connected with the first wiring ring of the inductance box; the second terminal ring of the inductance box is connected to another track through the variable resistor; two output ends of the 50Hz receiver are connected in parallel with two terminals on one side of the four-terminal capacitor; one output end of two terminals on the other side of the four-terminal capacitor is connected to one input end of the relay transformer through the second capacitor inductance box, the other output end of the four-terminal capacitor is connected to the other input end of the relay transformer, and the two output ends of the relay transformer are respectively connected to two external tracks.

Further, the device also comprises a transmitter, a lightning protection matching combination, a pre-code sending circuit, an adjusting resistor combination and a matching transformer box;

two output ends of the transmitter are respectively connected with two input ends of the lightning protection matching combination, two output ends of the lightning protection matching combination are respectively connected with two input ends of the pre-code sending circuit, two output ends of the pre-code sending circuit are respectively connected with two input ends of the adjusting resistor combination, two output ends of the adjusting resistor combination are respectively connected with two input ends of the matching transformer box, and two output ends of the matching transformer box are respectively connected with the two tracks.

The utility model has the advantages that:

the frequency shift information is isolated in the 50Hz alternating current track circuit when the frequency shift information is superposed on the 50Hz alternating current track circuit, so that the frequency shift information can be effectively prevented from being shunted by the 50Hz alternating current track circuit equipment, a frequency shift signal flows to a track, and the stable and reliable work of a locomotive signal is ensured.

Drawings

Fig. 1 is a schematic diagram of an inductor in an inductor box according to an embodiment of the present invention;

fig. 2 is a structural diagram of an inductance box according to an embodiment of the present invention;

fig. 3 is a schematic circuit diagram of a 50Hz alternating current track circuit superposition four-wire system coding system according to an embodiment of the present invention.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 and 2, the utility model provides an inductance box, including shell and internal circuit, one side of shell is equipped with first through-hole, second through-hole in proper order, first through-hole department is fixed with first wiring ring 1, second through-hole department is fixed with second wiring ring 2, internal circuit includes inductance L, inductance L's one end with first wiring ring 1, inductance L's the other end with second wiring ring 2 electricity is connected.

As shown in fig. 3, the present invention further provides a coding system, which comprises a 50Hz power panel, a track transformer, a relay transformer, a 50Hz receiver, a first capacitance-inductance box, a second capacitance-inductance box, a four-terminal capacitance, a variable resistor and the inductance boxes;

the track transformer is a power transmission end track transformer, the relay transformer is a power receiving end relay transformer, one output end of the 50Hz power supply screen is connected to one input end of the track transformer through the first capacitance and inductance box, the other output end of the 50Hz power supply screen is connected to the other input end of the track transformer, and one output end of the track transformer is connected to one track; the other output end of the track transformer is connected with the first wiring ring of the inductance box; the second terminal ring of the inductance box is connected to the other track through the variable resistor R; two output ends of the 50Hz receiver are connected in parallel with two terminals on one side of the four-terminal capacitor; one output end of two terminals on the other side of the four-terminal capacitor is connected to one input end of the relay transformer through the second capacitor inductance box, the other output end of the four-terminal capacitor is connected to the other input end of the relay transformer, and the two output ends of the relay transformer are respectively connected to two external tracks.

Optionally, in this embodiment, as shown in fig. 3, the coding system further includes a transmitter, a lightning protection matching combination, a pre-coding circuit, a trim resistor combination, and a matching transformer box;

two output ends of the transmitter are respectively connected with two input ends of the lightning protection matching combination, two output ends of the lightning protection matching combination are respectively connected with two input ends of the pre-code sending circuit, two output ends of the pre-code sending circuit are respectively connected with two input ends of the adjusting resistor combination, two output ends of the adjusting resistor combination are respectively connected with two input ends of the matching transformer box, and two output ends of the matching transformer box are respectively connected with the two tracks.

The utility model provides a pair of inductance box and coding system, simple structure, convenient to use satisfies the effective isolation to the frequency shift signal, does not influence the transmission of 50Hz signal in the existing 50Hz alternating current track circuit again. Through the series connection of the inductor L, frequency shift information is isolated in the 50Hz track circuit, on one hand, frequency shift signals can be prevented from entering the 50Hz alternating current track circuit, the track transformer is prevented from being burnt, on the other hand, the frequency shift information can be effectively prevented from being shunted by the 50Hz alternating current track circuit device, the frequency shift signals flow to a track, and stable and reliable work of locomotive signals is guaranteed.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (3)

1. The utility model provides an inductance box, its characterized in that, includes shell and internal circuit, one side of shell is equipped with first through-hole, second through-hole in proper order, first through-hole department is fixed with first wiring ring, second through-hole department is fixed with the second wiring ring, internal circuit includes inductance L, inductance L's one end with first wiring ring electricity is connected, inductance L's the other end with second wiring ring electricity is connected.

2. A coding system comprising a 50Hz power screen, a track transformer, a relay transformer, a 50Hz receiver, a first capacitive-inductive box, a second capacitive-inductive box, a four-terminal capacitance, a variable resistor, and an inductive box according to claim 1;

the track transformer is a power transmission end track transformer, the relay transformer is a power receiving end relay transformer, one output end of the 50Hz power supply screen is connected to one input end of the track transformer through the first capacitance and inductance box, the other output end of the 50Hz power supply screen is connected to the other input end of the track transformer, and one output end of the track transformer is connected to one track; the other output end of the track transformer is connected with the first wiring ring of the inductance box; the second terminal ring of the inductance box is connected to another track through the variable resistor; two output ends of the 50Hz receiver are connected in parallel with two terminals on one side of the four-terminal capacitor; one output end of two terminals on the other side of the four-terminal capacitor is connected to one input end of the relay transformer through the second capacitor inductance box, the other output end of the four-terminal capacitor is connected to the other input end of the relay transformer, and the two output ends of the relay transformer are respectively connected to two external tracks.

3. The coding system according to claim 2, further comprising a transmitter, a lightning protection matching combination, a pre-code circuit, a trim resistor combination, and a matching transformer box;

two output ends of the transmitter are respectively connected with two input ends of the lightning protection matching combination, two output ends of the lightning protection matching combination are respectively connected with two input ends of the pre-code sending circuit, two output ends of the pre-code sending circuit are respectively connected with two input ends of the adjusting resistor combination, two output ends of the adjusting resistor combination are respectively connected with two input ends of the matching transformer box, and two output ends of the matching transformer box are respectively connected with the two tracks.

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