CN216648045U - Series resonance inductor applied to rail transit traction converter - Google Patents

Abstract

The utility model provides a series resonance inductor applied to a rail transit traction converter, wherein ventilation openings are formed in two sides of an inductor box body, and at least one temperature measuring sensor is arranged on an inductor body; the wire feeding and discharging device comprises a coil, a wire feeding and discharging copper bar, a wire discharging and discharging copper bar, a wire connecting box and a current transformer, wherein the wire feeding and discharging copper bar is arranged in the wire connecting box; still be equipped with the circuit board in the terminal box, the circuit board is equipped with signal processing module, the circuit board with business turn over line wiring copper bar, current transformer and temperature sensor electric connection. Collecting voltage drop, current value and temperature value of each point when the inductor works; the real-time inductance value of the inductor during working can be calculated, the real-time loss of the inductor can be calculated, and the heat dissipation efficiency of the inductor can be calculated. Thereby enabling a limit alarm.

Description

Series resonance inductor applied to rail transit traction converter

Technical Field

The utility model relates to the field of rail transit train traction converters, in particular to a series resonance inductor applied to a rail transit traction converter.

Background

With the rapid development of the high-speed rail and motor train industry in China, various facilities and equipment on the train are required to be gradually intelligentized and communicable. However, the series resonant inductor currently used in the train traction converter is also a conventional inductor, and various parameters of the inductor cannot be acquired and transmitted to a train network, so that the fault of the inductor cannot be timely and accurately found and the fault reason cannot be judged.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the series resonance inductor applied to the rail transit traction converter, which can measure the real-time temperature, voltage and current signals of the inductor, connect the signals into a circuit board and process the signals through a signal processing module.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a series resonant inductor for use in a rail transit traction converter, comprising: the inductor box, be equipped with the inductor body in the inductor box, the inductor body includes iron core and coil, the coil is around establishing on the iron core. And, inductor box both sides are equipped with the ventilation opening, be equipped with at least one temperature sensor on the inductor body. In addition, the junction box is fixed on the outer wall of the inductor box body, at least one pair of incoming and outgoing line wiring copper bars are arranged in the junction box, a current transformer is arranged corresponding to each pair of incoming and outgoing line wiring copper bars, the incoming and outgoing line wiring copper bars are electrically connected with the coils, and the incoming and outgoing line wiring copper bars are electrically connected with the current transformers. The wiring box is characterized in that a circuit board is further arranged in the wiring box, the circuit board is provided with a signal processing module, and the circuit board is electrically connected with the incoming and outgoing line wiring copper bar, the current transformer and the temperature measuring sensor.

In the above device, the ventilation opening direction is an axial direction in which the coil is wound. The real-time temperature of the corresponding position of the coil is measured by arranging the temperature measuring sensor, and the signal is accessed into the circuit board and processed by the signal processing module; the current transformer is used for collecting working current signals of the inductor, and the circuit board is further connected with the incoming and outgoing line wiring copper bar and used for collecting voltage values at two ends of the inductor and obtaining voltage drop of the inductor during working. Collecting voltage drop, current value and temperature value of each point when the inductor works; the real-time inductance value of the inductor during working can be calculated, the real-time loss of the inductor can be calculated, and the heat dissipation efficiency of the inductor can be calculated. Therefore, limit value alarming, such as alarming of faults of overtemperature, overcurrent, inductance value overrun and the like can be carried out. The system can prompt train workers to accurately take corresponding obstacle removing measures in time corresponding to various types of limiting alarms, so that the safety performance and the usability of the series resonance inductor applied to the rail transit traction converter and the train traction converter are improved.

Furthermore, the series resonance inductor applied to the rail transit traction converter is characterized in that the temperature measuring sensors are arranged at ventilation openings on two sides of the coil in pairs. As the preferred scheme of the utility model, namely the temperature measuring sensors are arranged at the air outlet and the air inlet of the inductor body, when the temperature measuring sensors at the air outlet are higher than the temperature measuring sensors at the air inlet, the judgment can be carried out, and the temperature of the coil is raised due to ventilation faults, so that the fault removing measures can be correspondingly and accurately taken in time.

Furthermore, the series resonance inductor applied to the rail transit traction converter is characterized in that the iron core is integrally in a square frame body, and the coils are wound on the upper cross bar and the lower cross bar of the iron core in pairs. As a preferred scheme of the utility model, the coils are arranged in pairs, the corresponding incoming and outgoing line wiring copper bars are arranged in two pairs, the current transformers are arranged in two pairs, and the temperature measuring sensors are arranged in a pair corresponding to each coil.

Further, the series resonance inductor is applied to the rail transit traction converter, and the temperature measuring sensor is arranged in the projection area of the end part of the iron core of each coil. As a preferable scheme of the utility model, the temperature measuring sensor is arranged at a ventilation shielding position of the coil, the heat radiation performance is relatively the worst, the fault temperature rise efficiency is the highest, and the abnormal temperature rise condition can be timely and effectively found by arranging the coil at the position.

Furthermore, the series resonance inductor applied to the rail transit traction converter is provided with a communication module on the circuit board, and the communication module is communicated with the train TCMS. As a preferred scheme of the present invention, the communication module may communicate with a train network, and upload data of the inductor itself in real time.

Furthermore, the series resonance inductor applied to the rail transit traction converter is provided with a hoisting support on the inductor box body. As the preferred scheme of the utility model, the inductor box body is integrally arranged at the corresponding position of the train through the hoisting bracket.

Further, the series resonance inductor applied to the rail transit traction converter comprises an inductor box body, a box shell and a top cover, wherein the box shell is integrally U-shaped, the top cover is arranged above the box shell, and a hoisting support is arranged on the top cover. As the preferable scheme of the utility model, the inductor box body has reasonable structure and is convenient to disassemble and assemble.

The technical scheme shows that the utility model has the following beneficial effects:

1. the utility model provides a series resonance inductor applied to a rail transit traction converter, which is characterized in that voltage drop, current value and temperature value of each point when the inductor works are collected; the real-time inductance value of the inductor during working can be calculated, the real-time loss of the inductor can be calculated, and the heat dissipation efficiency of the inductor can be calculated. Therefore, limit value alarming, such as alarming of faults of overtemperature, overcurrent, inductance value overrun and the like can be carried out. The system can prompt train workers to accurately take corresponding obstacle removing measures in time corresponding to various types of limiting alarms, so that the safety performance and the usability of the series resonance inductor applied to the rail transit traction converter and the train traction converter are improved.

2. The utility model provides a series resonance inductor applied to a rail transit traction converter, wherein temperature measuring sensors are arranged at an air outlet and an air inlet of an inductor body, when the temperature of the temperature measuring sensor at the air outlet is higher than that of the temperature measuring sensor at the air inlet, judgment can be carried out, and a coil is heated due to ventilation faults, so that fault removal measures can be correspondingly and accurately taken in time.

3. The utility model provides a series resonance inductor applied to a rail transit traction converter, wherein a temperature measuring sensor is arranged at a coil ventilation shielding position, the heat radiation performance is relatively the worst, the heating efficiency is the highest when a fault occurs, and the abnormal heating condition can be timely and effectively found by arranging a coil at the position.

4. The utility model provides a series resonance inductor applied to a rail transit traction converter, wherein a communication module is arranged on a circuit board and is communicated with a train TCMS. The communication module can communicate with a train network and upload data of the inductor in real time.

Drawings

Fig. 1 is a three-dimensional exploded view of components of a series resonant inductor applied to a rail transit traction converter according to the present invention;

fig. 2 is a schematic diagram of a three-dimensional structure of a series resonant inductor applied to a rail transit traction converter according to the present invention;

fig. 3 is a plan front view and a sectional view of a series resonant inductor applied to a rail transit traction converter according to the present invention;

fig. 4 is a structural diagram of the inside of the junction box of a series resonant inductor applied to a rail transit traction converter according to the present invention;

fig. 5 is an electrical connection diagram of a series resonant inductor applied to a rail transit traction converter according to the present invention.

In the figure: 1-an inductor box; 11-a ventilation opening; 12-hoisting a bracket; 13-a cabinet shell; 14-a top cover; 2-an inductor body; 21-iron core; 22-a coil; 3-a temperature measuring sensor; 4-a junction box; 5-incoming and outgoing line wiring copper bar; 6-a current transformer; 7-a circuit board; 71-a signal processing module; 72-communication module.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

The series resonance inductor applied to the rail transit traction converter shown in the combined drawings of fig. 1-5 comprises an inductor box body 1, a box shell 13 and a top cover 14, wherein the inductor box body 1 is integrally U-shaped, and the top cover 14 is arranged above the box shell 13. The top cover 14 is provided with a hoisting bracket 12. Wherein, be equipped with inductor body 2 in the inductor box 1, inductor body 2 includes iron core 21 and coil 22, iron core 21 is whole to be the mouth font support body, coil 22 is in pairs around establishing on two horizontal bars about iron core 21. Wherein, the inductor box 1 both sides are equipped with ventilation opening 11, ventilation opening 11 direction is the axial direction of coil 22 winding. And 4 temperature sensors 3 are arranged on the inductor body 2. Wherein, the temperature sensors 3 are arranged in pairs at the ventilation openings 11 near two sides of the coil 22. The temperature sensor 3 is disposed in the area of the projected area of the end of the core 21 of each coil 22.

The inductor comprises an inductor box body 1, and is characterized by further comprising a junction box 4, wherein the junction box 4 is fixed on the outer wall of the inductor box body 1, at least one pair of incoming and outgoing line wiring copper bars 5 are arranged in the junction box 4, a current transformer 6 is arranged corresponding to each pair of incoming and outgoing line wiring copper bars 5, the incoming and outgoing line wiring copper bars 5 are electrically connected with a coil 22, and the incoming and outgoing line wiring copper bars 5 are electrically connected with the current transformers 6; still be equipped with circuit board 7 in the terminal box 4, circuit board 7 is equipped with signal processing module 71, circuit board 7 with business turn over line wiring copper bar 5, current transformer 6 and temperature sensor 3 electric connection. In addition, a communication module 72 is arranged on the circuit board 7, and the communication module 72 communicates with the train TCMS.

Based on the structure, the temperature sensor 3 is arranged to measure the real-time temperature of the position corresponding to the coil 22, and the signal is connected to the circuit board 7 and processed by the signal processing module 71; the current transformer 6 is used for collecting working current signals of the inductor, and the circuit board 7 is further connected with the incoming and outgoing line wiring copper bar 5 and used for collecting voltage values at two ends of the inductor to obtain voltage drop of the inductor during working. Collecting voltage drop, current value and temperature value of each point when the inductor works; the real-time inductance value of the inductor during working can be calculated, the real-time loss of the inductor can be calculated, and the heat dissipation efficiency of the inductor can be calculated. Therefore, limit value alarming, such as alarming of faults of overtemperature, overcurrent, inductance value overrun and the like can be carried out. The system can prompt train workers to accurately take corresponding obstacle removing measures in time corresponding to various types of limiting alarms, so that the safety performance and the usability of the series resonance inductor applied to the rail transit traction converter and the train traction converter are improved.

In addition, temperature sensor 3 sets up in inductor body 2 air outlet and air intake department, when the temperature sensor 3 of air outlet is higher than the temperature sensor 3 temperature of air intake, can judge, because the ventilation trouble leads to the coil to heat up, correspondingly in time accurately takes the measure of removing the obstacles. The coils 22 are arranged in pairs, the corresponding incoming and outgoing line wiring copper bars 5 are arranged in two pairs, the current transformers 6 are arranged in two pairs, and the temperature measuring sensor 3 is arranged in one pair corresponding to each coil 22. And, temperature sensor 3 sets up and shelters from the position at coil 22 ventilation, and heat dispersion is the worst relatively here, and the intensification efficiency is the highest in the trouble that breaks down, can in time effectively discover the intensification abnormal conditions through setting up coil 22 here. The communication module 72 can communicate with a train network, and upload data of the inductor in real time. In addition, the inductor box body 1 is reasonable in structure and convenient to disassemble and assemble. The inductor box body 1 is integrally installed at a corresponding position of the train through the hoisting bracket 12.

The technical principles of the present invention have been described above in connection with specific embodiments, which are intended to explain the principles of the present invention and should not be construed as limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, and these embodiments will fall within the scope of the present invention.

Claims (7)

1. A series resonance inductor applied to a rail transit traction converter comprises an inductor box body (1), wherein an inductor body (2) is arranged in the inductor box body (1), the inductor body (2) comprises an iron core (21) and a coil (22), and the coil (22) is wound on the iron core (21); the method is characterized in that: ventilation openings (11) are formed in two sides of the inductor box body (1), and at least one temperature measuring sensor (3) is arranged on the inductor body (2); the inductor comprises an inductor box body (1), and is characterized by further comprising a junction box (4), wherein the junction box (4) is fixed on the outer wall of the inductor box body (1), at least one pair of incoming and outgoing line wiring copper bars (5) is arranged in the junction box (4), a current transformer (6) is arranged corresponding to each pair of incoming and outgoing line wiring copper bars (5), the incoming and outgoing line wiring copper bars (5) are electrically connected with a coil (22), and the incoming and outgoing line wiring copper bars (5) are electrically connected with the current transformers (6); still be equipped with circuit board (7) in terminal box (4), circuit board (7) are equipped with signal processing module (71), circuit board (7) with business turn over line wiring copper bar (5), current transformer (6) and temperature sensor (3) electric connection.

2. The series resonant inductor applied to the rail transit traction converter as claimed in claim 1, wherein: the temperature sensors (3) are arranged in pairs at the positions of the ventilation openings (11) on the two sides of the coil (22).

3. The series resonant inductor applied to the rail transit traction converter as claimed in claim 2, wherein: the iron core (21) is integrally a square frame body, and the coils (22) are wound on the upper and lower cross bars of the iron core (21) in pairs.

4. The series resonant inductor applied to the rail transit traction converter as claimed in claim 3, wherein: the temperature measuring sensor (3) is arranged in the projection area of the end part of the iron core (21) of each coil (22).

5. The series resonant inductor applied to the rail transit traction converter as claimed in claim 1, wherein: the circuit board (7) is provided with a communication module (72), and the communication module (72) is communicated with the train TCMS.

6. The series resonant inductor applied to the rail transit traction converter as claimed in claim 1, wherein: and a hoisting support (12) is arranged on the inductor box body (1).

7. The series resonant inductor applied to the rail transit traction converter as claimed in claim 6, wherein: inductor box (1) still includes case shell (13) and top cap (14), case shell (13) wholly is the U type, top cap (14) set up in case shell (13) top, hoisting support (12) set up on top cap (14).

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