Power supply device for ground induction in railway locomotive signal machine

Abstract

A power supply device for ground sensing in a railway locomotive signal machine is characterized by comprising a one-way power supply module, the one-way power supply module is connected with a ground sensor in series, and the one-way power supply module is connected with a signal lamp power supply in parallel. According to the invention, the designed one-way power supply module is used for replacing a transmission mode of a current transformer adopted in an original circuit, and compared with an original direct-current output current transformer, the one-way power supply module is longer in service life, smaller in overall size and smaller in occupied space of a signal machine; the unidirectional power supply module supplies power to the ground inductor and is connected in parallel with the signal lamp power supply, so that the voltage of the ground inductor is not influenced by the power supply of the signal lamp in the prior art, stable output of the voltage is still maintained, and stability of the voltage of the ground inductor is indirectly maintained; and when the signal lamp power supply still works normally, the voltage still can be stably output, and the stability of the ground induction voltage is indirectly maintained.

Description

Technical Field

[0001] The invention relates to the technical field of railway locomotive signal machines, and in particular to a ground sensor power supply device in a railway locomotive signal machine. Background Art

[0002] During locomotive shunting operations, crew members need to know the status of the shunting signal ahead in advance so that they can respond accordingly. Existing shunting signal lights generally have two types: white lights and blue lights (red lights). White lights represent passing signals, and blue lights (red lights) represent stop signals. During train operation, the shunting monitoring system is used to transmit the shunting signal status to the locomotive and send it to LKJ without electrical connection with the station interlocking equipment and signals and without power supply, so as not to change the original equipment structure, performance, and technical indicators. The corresponding instructions are issued through LKJ to monitor the locomotive's pull-out operation and single-machine running operation during shunting operations. The ground sensor equipment in the existing shunting monitoring system is used to collect the status of signal lights. This technology can remind the crew according to the signals of blue and white lights. However, the circuit used in the signal machine is connected in series through the signal light power supply, current transformer, ground sensor and signal light. When the blue and white lights fail and they are not lit, it will affect the normal use of the ground sensor in the shunting monitoring system and affect the judgment of the operators. Once the operators make operating errors, it will easily cause accidents such as "rushing, squeezing, and falling off", reducing the practicality of the existing technology.

[0003] Therefore, a power supply device for ground sensors in railway locomotive signal machines is proposed to solve the above problems. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a power supply device for ground sensors in railway locomotive signal machines, which changes the previous current transformer transmission method and adopts a new unidirectional power supply module, so that the signal machine and the ground sensor of the shunting monitoring system do not affect each other.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A power supply device for a ground sensor in a railway locomotive signal, characterized by comprising a unidirectional power supply module, the unidirectional power supply module is connected in series with a ground sensor, the unidirectional power supply module is connected in parallel with a signal light power supply,

[0007] The unidirectional power supply module comprises a unidirectional power supply body (U1), a resistor (R1), a first capacitor (C1), an inductor (L1), a second capacitor (C2), a third capacitor (C3) and an electrolytic capacitor (EC1); an AC connection end of the unidirectional power supply body (U1) is connected to a first port (P1) via a resistor (R1); an output voltage end of the unidirectional power supply body (U1) is connected to the first capacitor (C1); the first capacitor (C1) is connected in parallel to a diode (TVS1); one end of the first capacitor (C1) is connected to the second port (P1) via an inductor (L1); the other end of the first capacitor (C1) is grounded; and the second port (P2) is respectively connected in parallel to the second capacitor (C2), the third capacitor (C3) and the electrolytic capacitor (C4).

[0008] Specifically, the one-way unit body (U1) adopts LD03-23B09R2.

[0009] Beneficial effects of the present invention:

[0010] The present invention replaces the transmission mode of the current transformer used in the original circuit by designing a unidirectional power supply module. Compared with the original DC output current transformer, the unidirectional power supply module has a longer service life and a smaller overall volume, occupies less space in the signal machine, is easy to install and not easy to damage, and is simple to operate during construction and later maintenance;

[0011] The unidirectional power supply module designed in the present invention supplies power to the ground sensor, and is connected in parallel with the signal light power supply, so that the ground sensor voltage is no longer affected by the previous power supply of the signal light, and still maintains a stable output voltage, thereby indirectly maintaining the stability of the ground sensor voltage. If the signal light is damaged, the voltage can still be kept stable when the signal light power supply is still working normally, thereby indirectly maintaining the stability of the ground sensor voltage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a circuit diagram of a ground sensor power supply device in a railway locomotive signal machine of the present invention;

[0013] Figure 2 A circuit diagram of a unidirectional power supply module of a ground sensor power supply device in a railway locomotive signal machine according to the present invention;

[0014] Figure 3 It is a front view schematic diagram of the physical structure of a unidirectional power supply module of a ground sensor power supply device in a railway locomotive signal machine of the present invention;

[0015] Figure 4 A rear view schematic diagram of the physical structure of a unidirectional power supply module of a ground sensor power supply device in a railway locomotive signal machine of the present invention

[0016] Figure 5It is a physical structure diagram of an existing current transformer;

[0017] As shown in the figure: 1. Unidirectional power supply module, U1. Unidirectional power supply body, R1. Resistor, EC1. Electrolytic capacitor, C1. First capacitor, C2. Second capacitor, C3. Third capacitor, TVS1. Diode, L1. Inductor, P1. First port, P2. Second port. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Example 1

[0022] As shown in the figure, the unidirectional power supply module 1 is connected in series with the ground sensor, and the unidirectional power supply module is connected in parallel with the signal light power supply. The unidirectional power supply module includes a unidirectional power supply body (U1), a resistor (R1), a first capacitor (C1), an inductor (L1), a second capacitor (C2), a third capacitor (C3) and an electrolytic capacitor (EC1). The AC connection end of the unidirectional power supply body (U1) is connected to the first port (P1) through the resistor (R1), the output voltage end of the unidirectional power supply body (U1) is connected to the first capacitor (C1), the first capacitor (C1) is connected in parallel with a diode (TVS1), one end of the first capacitor (C1) is connected to the second port (P1) through the inductor (L1), the other end of the first capacitor (C1) is grounded, and the second port (P2) is respectively connected in parallel with the second capacitor (C2), the third capacitor (C3) and the electrolytic capacitor (C4), wherein the unidirectional unit body (U1) adopts LD03-23B09R2.

[0023] The present invention replaces the transmission mode of the current transformer originally used in the circuit by designing a unidirectional power supply module 1. Figure 5 As shown, compared with the original DC output current transformer, the unidirectional power module 1 has a longer service life. The physical structure diagram of the unidirectional power module 1 is shown in Figure 3 and Figure 4 As shown, the overall volume is small, and the installation occupies less space in the signal machine;

[0024] The unidirectional power supply module 1 supplies power to the ground sensor, and is connected in parallel with the signal light power supply, so that the ground sensor voltage is no longer affected by the previous power supply of the signal light, and still maintains a stable voltage output, thereby indirectly maintaining the stability of the ground sensor voltage. If the signal light is damaged, the voltage can still maintain a stable output when the signal light power supply is still working normally, thereby indirectly maintaining the stability of the ground sensor voltage, thereby preventing the problem of wasted waiting time caused by a signal light failure and achieving the purpose of ensuring the normal operation of the train.

[0025] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. The various components mentioned in the present invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A ground sensor power supply device in a railway locomotive signal, characterized in that It comprises a unidirectional power supply module, which is connected in series with the ground sensor and in parallel with the signal light power supply.

2. A ground sensor power supply device in a railway locomotive signal according to claim 1, characterized in that The unidirectional power supply module comprises a unidirectional power supply body (U1), a resistor (R1), a first capacitor (C1), an inductor (L1), a second capacitor (C2), a third capacitor (C3) and an electrolytic capacitor (EC1); an AC connection end of the unidirectional power supply body (U1) is connected to a first port (P1) via a resistor (R1); an output voltage end of the unidirectional power supply body (U1) is connected to the first capacitor (C1); the first capacitor (C1) is connected in parallel to a diode (TVS1); one end of the first capacitor (C1) is connected to the second port (P1) via an inductor (L1); the other end of the first capacitor (C1) is grounded; and the second port (P2) is respectively connected in parallel to the second capacitor (C2), the third capacitor (C3) and the electrolytic capacitor (C4).

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