CN205142024U - Railcar rectification cabinet - Google Patents

Abstract

The utility model provides a railcar rectification cabinet, the intelligent cabinet temperature adjusting device comprises a cabinet body, the cabinet body is the seal structure who comprises left side board, right side board, posterior lateral plate, preceding cabinet door, bottom plate and roof, seal structure is inside be equipped with power control module and with the main circuit module that power control module is connected, main circuit module keeps apart module, output rectifier module and exports filter module including the contactor resistance module, input rectifier module, support electric capacity module, slow discharge resistance module, IGBT module, the step -down that are connected. The utility model provides a railcar rectification cabinet, through foretell reasonable layout structure, can be on the basis of guaranteeing electric properties such as output, the effectual overall dimension who reduces the railcar rectification cabinet cabinet body to optimized electromagnetic compatibility can, what make rectification cabinet device uses and moves more reliable and more stable, and then has improved the practicality of rectification cabinet, is favorable to the popularization and application in market.

Description

Railcar rectifier cabinet

Technical field

The utility model relates to rolling stock, is specifically related to a kind of railcar rectifier cabinet.

Background technology

Along with the continuous progress of science and technology, the vehicles are also more and more convenient, a lot of city is in order to save construction cost and beautifying urban environment at present, build many subway lines, and being on the increase along with subway line, the number taking subway also gets more and more, this just proposes high requirement to the overall performance of subway, wherein, especially for the circuit control system controlling subway line, the security of operation of circuit control system and railcar is closely bound up.

Wherein, the rectifying device being installed on railcar bottom is included in circuit control system, for rectifying device, the rectifier cabinet size that the rectification on railcar requires can be met all larger in prior art, and due to the restriction of railcar bottom space, therefore, need now a kind of rectifying device badly, the instructions for use of railcar can be met simultaneously in function and structure layout.

Utility model content

The utility model provides a kind of railcar rectifier cabinet, can meet the instructions for use of railcar in function and structure layout simultaneously.

The utility model is that described cabinet is the hermetically-sealed construction be made up of left plate, right plate, back side panel, front cabinet door, base plate and top board in order to provide a kind of railcar rectifier cabinet, comprise cabinet; The main circuit module that described hermetically-sealed construction inside is provided with energy supply control module and is connected with described energy supply control module, described main circuit module comprises:

Contactor resistive module, for carrying out current limliting to the three-phase alternating current of input, be arranged on described base plate with described front cabinet door and the mutually close one end of described left plate;

Input rectifying module, for carrying out rectification to the three-phase alternating current after current limliting, being connected with described contactor resistive module, being arranged at one end mutually close with described top board on described back side panel;

Support capacitance module, charge/discharge is carried out for the operating state according to circuit, be connected with described input rectifying module, be arranged on described base plate with described back side panel and the mutually close one end of left plate, and form with described contactor resistive module the first tandem paralleled with described left plate;

Slow discharge resistance module, discharges to described support capacitance module for the operating state according to circuit, and being in parallel with described support capacitance module is connected in described input rectifying module, is arranged at one end mutually close with described base plate on described back side panel;

IGBT module, for being alternating current to the DC inverter through described support capacitance module, be connected in parallel in described input rectifying module with described slow discharge resistance, support capacitance module, be arranged between described input rectifying module on described back side panel and described slow discharge resistance module;

Step-down isolation module, for carrying out step-down process to the alternating current through described IGBT module, is connected with described IGBT module, is arranged at outside described left plate;

Export rectification module, for carrying out rectification to the alternating current after step-down process, being connected with described step-down isolation module, being arranged at one end mutually close with described right plate on described back side panel;

Output filtering module, for carrying out filtering process to the direct current exporting rectification module output, and the direct current exported after process after filtering, be in parallel with described output rectification module, be arranged at one end mutually close with described right plate on described base plate, and parallel with the first tandem on described base plate.

Railcar rectifier cabinet as above, described energy supply control module comprises the drive plate unit, signal plate unit and the power panel unit that are connected;

Described drive plate unit to be arranged at inside described cabinet and to be connected with described left plate, and described drive plate unit is mutually close with described back side panel;

Described signal plate unit to be arranged at inside described cabinet and to be connected with described back side panel, and described signal plate unit is mutually close with described right plate;

Described power panel unit is arranged on described right plate, and is positioned at the front end of described signal plate unit.

Railcar rectifier cabinet as above, the current-limiting resistance unit that described contactor resistive module comprises the first charging contactor, the second charging contactor and is made up of the first resistance be in parallel, the second resistance and the 3rd resistance;

Described current-limiting resistance unit one end is connected with the input of three-phase alternating current by the second charging contactor, the other end of described current-limiting resistance unit is connected with described input rectifying module, and described first charging contactor is in parallel with the link in tandem be made up of described second charging contactor and described current-limiting resistance unit.

Railcar rectifier cabinet as above, described input rectifying module is the first bridge rectifier be made up of six diodes;

Described output rectification module is the second bridge rectifier be made up of four diodes.

Railcar rectifier cabinet as above, described support capacitance module comprises the first electric capacity parallel with one another and the second electric capacity;

Described slow discharge resistance module comprises the 4th resistance parallel with one another and the 5th resistance;

Described output filtering module comprises the output reactance be connected with described output rectification module and the output filter capacitor unit be connected with described output reactance, and described output filter capacitor unit comprises the 3rd electric capacity parallel with one another and the 4th electric capacity.

Railcar rectifier cabinet as above, described main circuit module also comprises the fast acting fuse be connected with described input rectifying module and the input reactance be connected with described fast acting fuse, described fast acting fuse and input reactance are all arranged at one end mutually close with front cabinet door on base plate, and described fast acting fuse and described input reactance form the second tandem paralleled with described first tandem.

Railcar rectifier cabinet as above, described step-down isolation module comprises the resonance reactance matched with described IGBT module and the high frequency transformer be connected with described resonance reactance, and described resonance reactance and described high frequency transformer are juxtaposed on the lateral surface of described left plate.

Railcar rectifier cabinet as above, described main circuit module also comprises the capacitance be connected with described IGBT module, described capacitance is connected with described high frequency transformer by described resonance reactance, described capacitance is arranged at one end mutually close with described back side panel on base plate, and is arranged in the second tandem of being made up of described fast acting fuse and described input reactance.

Railcar rectifier cabinet as above, described main circuit module also comprises the counnter attack diode be connected with output filtering module with output rectification module, described counnter attack diode is arranged between described output rectification module on described back side panel and described IGBT module, and mutually close with described base plate.

Railcar rectifier cabinet as above, also comprises the heat abstractor of rectangular configuration, and described heat abstractor is connected with described back side panel, and is arranged at the left end of described back side panel.

Railcar rectifier cabinet as above, the outside of described step-down isolation module is provided with protective cover, described protective cover is evenly provided with several hollow out grids.

Railcar rectifier cabinet as above, described main circuit module also comprises for detecting the voltage sensor module of voltage and the current sensor module for detecting electric current, described voltage sensor module and described current sensor module be arranged on described top board with described back side panel and the mutually close one end of described right plate, described voltage sensor module comprises the first voltage sensor, the second voltage sensor and tertiary voltage transducer, and described current sensor module comprises the first current sensor, the second current sensor and the 3rd current sensor;

Described first voltage sensor is arranged between energy supply control module and contactor resistive module, for the magnitude of voltage of testing circuit input;

Described second voltage sensor is arranged between input reactance and slow discharge resistance, for detecting the magnitude of voltage after input rectifying module rectification process;

Tertiary voltage sensor setting between output filtering module and counnter attack diode, for the magnitude of voltage of testing circuit output;

Described first current sensor is arranged between IGBT module and high frequency transformer, is carrying out the circuital current value before step-down process for detecting through high frequency transformer;

Described second current sensor is arranged between described output reactance and energy supply control module, carries out the circuital current value after rectification process for detecting through exporting rectification module;

Described 3rd current sensor is arranged between described counnter attack diode and energy supply control module, for detecting the circuital current value after counnter attack diode.

The railcar rectifier cabinet that the utility model provides, by above-mentioned rational deployment structure, can on the basis ensureing the electric properties such as power output, the overall dimension of effective reduction railcar rectifier cabinet cabinet, and optimize Electro Magnetic Compatibility, what make rectifier cabinet device uses and runs more reliable and more stable, and then improves the practicality of rectifier cabinet, is conducive to the propagation and employment in market.

Accompanying drawing explanation

The perspective view of the railcar rectifier cabinet of Fig. 1 given by the utility model embodiment;

The internal structure vertical view of the railcar rectifier cabinet of Fig. 2 given by the utility model embodiment;

The front schematic view of the back side panel of the railcar rectifier cabinet of Fig. 3 given by the utility model embodiment;

The internal structure upward view of the railcar rectifier cabinet of Fig. 4 given by the utility model embodiment;

The front view that the front cabinet door of the railcar rectifier cabinet of Fig. 5 given by the utility model embodiment is opened;

The principle schematic of the main circuit of the railcar rectifier cabinet of Fig. 6 given by the utility model embodiment.

In figure:

1, cabinet; 2, front cabinet door;

3, left plate; 4, top board;

5, protective cover; 6, heat abstractor;

7, right plate; 8, back side panel;

9, base plate; 10, contactor resistive module;

11, support capacitance module; 12, input rectifying module;

13, slow discharge resistance module; 14, IGBT module;

15, rectification module is exported; 16, the first charging contactor;

17, the second charging contactor; 18, current-limiting resistance unit;

19, output reactance; 20, output filter capacitor unit;

21, fast acting fuse; 22, input reactance;

23, resonance reactance; 24, high frequency transformer;

25, capacitance; 26, power model;

27, counnter attack diode; 28, voltage sensor module;

29, current sensor module; 30, power panel unit;

31, signal plate power supply; 32, drive plate unit.

Embodiment

Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following instance for illustration of the utility model, but is not used for limiting scope of the present utility model.

Fig. 1 is the perspective view of given railcar rectifier cabinet; Fig. 2 is the internal structure vertical view of given railcar rectifier cabinet; Fig. 3 is the front schematic view of the back side panel of given railcar rectifier cabinet; Fig. 4 is the internal structure upward view of given railcar rectifier cabinet; Fig. 5 is the front view that the front cabinet door of given railcar rectifier cabinet is opened; Fig. 6 is the principle schematic of the main circuit of given railcar rectifier cabinet; Known with reference to accompanying drawing 1-6, the utility model provides a kind of railcar rectifier cabinet, comprises cabinet 1, and cabinet 1 is the hermetically-sealed construction be made up of left plate 3, right plate 7, back side panel 8, front cabinet door 2, base plate 9 and top board 4; The main circuit module that sealing inside configuration is provided with energy supply control module and is connected with energy supply control module, main circuit module comprises:

Contactor resistive module 10, for carrying out current limliting to the three-phase alternating current of input, be arranged on base plate 9 with front cabinet door 2 and the mutually close one end of left plate 3;

Input rectifying module 12, for carrying out rectification to the three-phase alternating current after current limliting, is connected with contactor resistive module 10, is arranged at one end mutually close with top board 4 on back side panel 8;

Support capacitance module 11, charge/discharge is carried out for the operating state according to circuit, be connected with input rectifying module 12, be arranged on base plate 9 with back side panel 8 and the mutually close one end of left plate 3, and form with contactor resistive module 10 the first tandem paralleled with left plate 3;

Slow discharge resistance module 13, discharges to support capacitance module 11 for the operating state according to circuit, and being in parallel with support capacitance module 11 is connected in input rectifying module 12, is arranged at one end mutually close with base plate 9 on back side panel 8;

IGBT module 14, for being alternating current to the DC inverter through support capacitance module 11, be connected in parallel in input rectifying module 12 with slow discharge resistance, support capacitance module 11, be arranged at input rectifying module 12 on back side panel 8 and between slow discharge resistance module 13;

Step-down isolation module, for carrying out step-down process to the alternating current through IGBT module 14, is connected with IGBT module 14, is arranged at outside left plate 3;

Export rectification module 15, for carrying out rectification to the alternating current after step-down process, being connected with step-down isolation module, being arranged at one end mutually close with right plate 7 on back side panel 8;

Output filtering module, for carrying out filtering process to the direct current exporting rectification module 15 output, and exporting the direct current after process after filtering, being in parallel with output rectification module 15, be arranged at one end mutually close with right plate 7 on base plate 9, and parallel with the first tandem on base plate 9.

Wherein, the concrete shape structure of cabinet 1 and size are not specifically limited, but in order to the installing space of railcar will be coordinated, comparatively preferred, cabinet 1 is set to rectangular configuration, and the effective dimensions of cabinet 1 is controlled in the magnitude range of 1050mm*1250mm*700mm, the lower end being arranged on railcar that like this can be stable; In addition, the structure structure concrete for above-mentioned contactor resistive module 10, input rectifying module 12, support capacitance module 11, slow discharge resistance module 13, IGBT module 14, step-down isolation module, output rectification module 15 and output filtering module is not specifically limited, the concrete function that those skilled in the art can realize according to it is arranged arbitrarily, does not repeat them here.

The railcar rectifier cabinet that the utility model provides, by above-mentioned rational deployment structure, can on the basis ensureing the electric properties such as power output, the overall dimension of effective reduction railcar rectifier cabinet cabinet 1, and optimize Electro Magnetic Compatibility, what make rectifier cabinet device uses and runs more reliable and more stable, and then improves the practicality of rectifier cabinet, is conducive to the propagation and employment in market.

On the basis of above-described embodiment, continue with reference to accompanying drawing 1-6 known, in the technical program, concrete structure for energy supply control module does not limit, wherein, connecting line above energy supply control module is low-voltage circuit, it is connected to control controlling rectifier cabinet signal with main circuit module, the concrete structure of function to energy supply control module that those skilled in the art can realize according to it is arranged, comparatively preferred, energy supply control module is set to comprise the drive plate unit 32, signal plate unit 31 and the power panel unit 30 that are connected;

Drive plate unit 32 to be arranged at inside cabinet 1 and to be connected with left plate 3, and drive plate unit 32 is mutually close with back side panel 8;

Signal plate unit 31 to be arranged at inside cabinet 1 and to be connected with back side panel 8, and signal plate unit 31 is mutually close with right plate 7;

Power panel unit 30 is arranged on right plate 7, and is positioned at the front end of signal plate unit 31.

Wherein, energy supply control module is set to above-mentioned arrangement, can when this circuit carry out work, reduce energy supply control module to the impact of signal, and then security reliability when can ensure rectifier cabinet overall work further.

In addition, on the basis of above-described embodiment, continue with reference to accompanying drawing 1-6 known, concrete structure for contactor resistive module 10 does not limit, the function that those skilled in the art can realize according to contactor resistive module 10 is arranged arbitrarily its structure, wherein, comparatively preferred, contactor resistive module 10 is set to the current-limiting resistance unit 18 comprising the first charging contactor 16 (KM1), the second charging contactor 16 (KM1) and be made up of the first resistance (R1) be in parallel, the second resistance (R2) and the 3rd resistance (R3);

Current-limiting resistance unit 18 one end is connected with the input of three-phase alternating current by the second charging contactor 17, the other end of current-limiting resistance unit 18 is connected with input rectifying module 12, and the first charging contactor 16 is in parallel with the link in tandem be made up of the second charging contactor 17 and current-limiting resistance unit 18.

Wherein, when circuit specific works, after three-phase alternating current access, start to be that the first charging contactor 16 (KM1) of contactor resistive module 10 is opened, second charging contactor 17 (KM2) closes, and then three-phase alternating current is connected successively, to realize the effect of charging to the support capacitance module 11 in circuit with input rectifying module 12 with current-limiting resistance unit 18 by the second contactor KM2; After capacitance module 11 to be supported is full of electricity, the first charging contactor 16 (KM1) in contactor resistive module 10 closes, second charging contactor 17 (KM2) is opened, three-phase alternating current is directly connected with input rectifying module 12 by the first charging contactor 16 (KM1), achieve the effect three-phase alternating current of input being carried out to current limliting, and then effectively ensure that the reliability of circuit working.

In addition, on the basis of above-described embodiment, continue with reference to accompanying drawing 1-6 known, in the technical program, the concrete structure of input rectifying module 12 and output rectification module 15 is not limited, as long as the three-phase alternating current of input can be realized to be converted to direct current, wherein, comparatively preferably, input rectifying module 12 (D1) is set to the first bridge rectifier be made up of six diodes; Exporting rectification module 15 is second bridge rectifiers be made up of four diodes.

By the input rectifying module 12 of above-mentioned setting, rectification is carried out to the three-phase alternating current after current limliting, be converted to direct current, so that the later stage processes circuit, and by exporting rectification module 15 to being converted to direct current through the step-down isolation module alternating current carried out after step-down process, use so that export the direct current electrician railway system.

In addition, on the basis of above-described embodiment, continue with reference to accompanying drawing 1-6 known, in the technical program, the concrete structure of support capacitance module 11, slow discharge resistance module 13 and output filtering module is not limited, the function that those skilled in the art can realize according to above-mentioned modules is arranged arbitrarily, wherein, comparatively preferably, support capacitance module 11 is set to comprise the first electric capacity (C1) parallel with one another and the second electric capacity (C1B); Slow discharge resistance module 13 is set to comprise the 4th resistance parallel with one another and the 5th resistance; Be comprise output filtering module installation and export the output reactance 19 that rectification module 15 is connected and the output filter capacitor unit 20 be connected with output reactance 19, output filter capacitor unit 20 comprises the 3rd electric capacity parallel with one another and the 4th electric capacity.

Wherein, after connection circuit, when first the first electric capacity (C1) in support capacitance module 11 and the second electric capacity (C1B) being charged, after electricity is full of to the first electric capacity (C1) and the second electric capacity (C1B), namely main circuit enters normal operating conditions, treat after hours, when needing to check circuit or overhaul, first need to be discharged to the first electric capacity (C1) and the second electric capacity (C1B) by the 4th resistance R4A in slow discharge resistance module 13 and the 5th resistance R4B, after to the first electric capacity (C1) and the second electric capacity (C1B) discharge off, can carry out checking or inspection operation, like this, effectively can avoid operating personnel because of operate miss by the generation of electricity to situation, in addition, for output filtering module, can the burr in the DC signal through exporting rectification module 15 output be filtered, to export comparatively neat direct current, and then ensure that the normal service condition of power supply of subway system, and improve the reliability of the use of rectifier cabinet.

On the basis of above-described embodiment, continue with reference to accompanying drawing 1-6 known, in order to ensure the normal operating conditions of this rectifier cabinet, be set to also comprise the fast acting fuse 21 be connected with input rectifying module 12 and the input reactance 22 be connected with fast acting fuse 21 at main circuit module, fast acting fuse 21 and input reactance 22 are all arranged at one end mutually close with front cabinet door 2 on base plate 9, and fast acting fuse 21 and input reactance 22 form the second tandem paralleled with the first tandem.

Wherein, because fast acting fuse 21 is mainly used in the short-circuit protection to input rectifying module 12, because the overload capacity of the semiconductor element diode in input rectifying module 12 is very low, larger overload current can only be born in very short time, therefore require that short-circuit protection has the ability of quick fuse; Therefore, by the fast acting fuse 21 arranged, can effectively protect circuit; In addition, input impedance can effectively be filtered the burr in the DC signal after over commutation, to export comparatively neat DC signal, is convenient to the effective process of later stage to the signal of telecommunication; In addition, fast acting fuse 21 and input reactance 22 are all arranged at one end mutually close with front cabinet door 2 on base plate 9, and fast acting fuse 21 and input reactance 22 form the second tandem paralleled with the first tandem, adopt above-mentioned this layout structure, effectively can reduce the situation producing electromagnetic interference with the miscellaneous part in circuit, and then the normal operating conditions of circuit can be ensured, improve the reliability that this circuit uses.

On the basis of above-described embodiment, continue with reference to accompanying drawing 1-6 known, in the technical program, the concrete structure of step-down isolation module is not limited, the function that those skilled in the art can realize according to it is arranged arbitrarily it, wherein, comparatively preferred, be set to by step-down isolation module comprise the resonance reactance 23 matched with IGBT module 14 and the high frequency transformer 24 be connected with resonance reactance 23, resonance reactance 23 and high frequency transformer 24 are juxtaposed on the lateral surface of left plate 3.

Wherein, to be vibrated with resonance reactance 23 by IGBT module 14 and coordinate, can be alternating current by the DC inverter through support capacitance module 11, step-down process is carried out for high frequency transformer 24, and then export the ac signal after step-down process, wherein, the object of step-down is to carry out normally for the miscellaneous part in subway system, effectively can ensure that subway parts are under normal operating condition like this, improve the reliability that railcar runs; In addition, lateral surface resonance reactance 23 and high frequency transformer 24 being juxtaposed on left plate 3 effectively can reduce the situation producing electromagnetic interference with the miscellaneous part in circuit, further ensure the normal operation of circuit, improve the reliability that rectifier cabinet uses.

On the basis of above-described embodiment, continue with reference to accompanying drawing 1-6 known, be in the process of alternating current at IGBT module 14 (IGBT1-IGBT4) and resonant inductance by the DC inverter through support capacitance module 11, in order to prevent the generation of bias phenomenon, main circuit module is set to also comprise the capacitance 25 be connected with IGBT module 14, capacitance 25 is connected with high frequency transformer 24 by resonance reactance 23, capacitance 25 is arranged at one end mutually close with back side panel 8 on base plate 9, and be arranged in the second tandem of being made up of fast acting fuse 21 and input reactance 22, capacitance 25 is arranged on above-mentioned position, effectively can reduces the situation of electromagnetic interference, and then ensure that the normal operating conditions of all parts in circuit.

On the basis of above-described embodiment, continue with reference to accompanying drawing 1-6 known, in order to ensure the generation exporting galvanic reverse-filling phenomenon, main circuit module is set to also comprise the counnter attack diode 27 be connected with output filtering module with output rectification module 15, counnter attack diode 27 is arranged between output rectification module 15 on back side panel 8 and IGBT module 14, and it is mutually close with base plate 9, and counnter attack diode 27 is arranged at above-mentioned position, effectively can reduce the situation of electromagnetic interference in circuit, and then ensure that the reliability of circuit working, improve the security and stability that rectifier cabinet uses.

In addition, on the basis of above-described embodiment, continue with reference to accompanying drawing 1-6 known, in order to the moment understands the state of the signal of telecommunication in circuit, main circuit module can be set to the voltage sensor module 28 also comprised for detecting voltage and the current sensor module 29 being used for detecting electric current, so that analyzed by the magnitude of voltage that records and the operating state of current value to circuit, be convenient to effectively improve circuit; Wherein, voltage sensor module 28 and current sensor module 29 be arranged on top board 4 with back side panel 8 and the mutually close one end of right plate 7, voltage sensor module 28 comprises the first voltage sensor, the second voltage sensor and tertiary voltage transducer, and current sensor module 29 comprises the first current sensor, the second current sensor and the 3rd current sensor;

First voltage sensor TV1 is arranged between energy supply control module and contactor resistive module 10, for the magnitude of voltage of testing circuit input;

Second voltage sensor TV2 is arranged between input reactance 22 and slow discharge resistance, for detecting the magnitude of voltage after input rectifying module 12 rectification process;

Tertiary voltage transducer TV3 is arranged between output filtering module and counnter attack diode 27, for the magnitude of voltage of testing circuit output;

First current sensor TA1 is arranged between IGBT module 14 and high frequency transformer 24, is carrying out the circuital current value before step-down process for detecting through high frequency transformer 24;

Second current sensor TA2 is arranged between output reactance 19 and energy supply control module, carries out the circuital current value after rectification process for detecting through exporting rectification module 15;

3rd current sensor TA3 is arranged between counnter attack diode 27 and energy supply control module, for detecting the circuital current value after counnter attack diode 27.

Wherein, setting position for each above-mentioned voltage sensor and current sensor is not restricted to above-mentioned position, those skilled in the art can also be arranged arbitrarily according to the demand of concrete survey voltage, survey electric current, as long as the magnitude of voltage that can realize by recording and current value can effectively effectively be analyzed the operating state of various piece in circuit, do not repeat them here.

On the basis of above-described embodiment, continue with reference to accompanying drawing 1-6 known, in order to ensure the normal operating conditions of this rectifier cabinet structure, rectifier cabinet is set to the heat abstractor 6 also comprising rectangular configuration, heat abstractor 6 is connected with back side panel 8, and the left end being arranged at back side panel 8 (wherein, said left end in the technical program, right-hand member, when user is to face front cabinet door 2, the direction of close left plate 3 is left side, the direction of close right plate 7 is right side), and, in order to ensure the radiating effect of heat abstractor 6 further, the part of the back side panel 8 be connected with heat abstractor 6 is set to and heat abstractor 6 integrated formed structure, like this, the parts being arranged on back side panel 8 left end are made directly to be arranged on heat abstractor 6, effectively raise radiating efficiency, can effectively be processed the heat that the electric elements in work produce by the heat abstractor 6 arranged, and then reduce the temperature of electric elements self and operational environment, prevent electric elements because of ambient stable is too high or own temperature process and occur damage situation, extend the working life of electric elements, and ensure that the reliability that circuit uses, and then improve the practicality of this rectifier cabinet.

On the basis of above-described embodiment, continue with reference to accompanying drawing 1-6 known, because step-down isolation module is arranged at the lateral surface of left plate 3, be vulnerable to the phenomenon damaged because being subject to the collision of extraneous parts in order to prevent step-down isolation module, the outside of step-down isolation module is provided with protective cover 5, by the protective cover 5 arranged, effectively can protect step-down isolation module; And can evenly be provided with several hollow out grids on protective cover 5, with the hollow out grid by arranging, effectively radiating treatment is carried out to step-down isolation module, reduce own temperature and the operating ambient temperature of step-down isolation module, and the operating state of decompression isolation module can be seen from the external world intuitively, be convenient to user and understand circuit working state.

The main structural principle of the technical program is: 380V three-phase electricity is converted to 110V DC power supply, thinks that subway system is powered; Concrete, comprise: when the three-phase alternating current of 380V is by contactor resistive module 10, first the first charging contactor 16KM1 of contactor resistive module 10 is made to open, second charging contactor 17KM2 closes, and then three-phase alternating current is connected successively, to realize the effect of charging to the support capacitance module 11 in main circuit module with input rectifying module 12 with current-limiting resistance unit 18 by the second contactor KM2; After capacitance module 11 to be supported is full of electricity, the first charging contactor 16KM1 in contactor resistive module 10 closes, second charging contactor 17KM2 opens, three-phase alternating current is directly connected with input rectifying module 12 by the first charging contactor 16KM1, and then achieves the effect being carried out current limliting by the three-phase alternating current of contactor resistive module 10 to input.

Until the alternating current after current limliting after input rectifying module 12, by rectification module, interchange point is integrated into direct current, in order to ensure the security reliability that circuit runs, be provided with fast acting fuse 21, direct current after integrating is after the filter action of input reactance 22, burr in direct current is filtered, become comparatively smooth direct current, then comparatively smooth direct current is by the break-make of IGBT module 14 and the resonance reactance 23 that matches with IGBT module 14, be alternating current by smooth DC inverter, in reversals, in order to avoid the generation of bias phenomenon, capacitance 25 is provided with between IGBT module 14 and resonance reactance 23, effectively can ensure that the stable of reversals carries out.

Alternating current is by after the step-down process of high frequency transformer 24 afterwards, the alternating current step-down of 380V is treated to the alternating current of 110V, the alternating current of the 110V then after step-down is after exporting the rectification of rectification module 15, be converted to the direct current of 110V, now, signal in the direct current of the 110V after conversion has burr, after the filtration of output filtering module, the 110V direct current with burr is changed into the direct current of comparatively neat 110V, use for subway system, wherein, in the galvanic process exporting 110V, the phenomenon of pouring in down a chimney to prevent electric current, counnter attack diode 27 is provided with in output galvanic one end of 110V, effectively can ensure the reliability of output current.

During concrete use, as shown in Figure 1, the cabinet 1 in the technical program is rectangular configuration, and wherein, cabinet 1 is made up of steel material, and front cabinet door 2 is made up of aluminum material, like this, effectively raises the intensity of cabinet 1, ensure that the reliability that cabinet 1 uses.

As shown in Figure 2, the base plate 9 of cabinet 1 is provided with support capacitance module 11 (C1, C1B), contactor resistive module 10 (KM1, KM2, R1, R2, R3), capacitance 25 (C2), input reactance 22 (L1), fast acting fuse 21 (FU1), output filter capacitor module (C3A, C3B), output reactance 19 (L2) etc., all can be fixed on the base plate 9 of cabinet 1 with bolted form by keyset with upper-part, in addition, the outside of cabinet 1 also comprises power model 26, use 8 through the outside of the back side panel 8 being bolted to cabinet 1 of Dacroment process, and the outside of the left plate 3 of cabinet 1 is also provided with resonance reactance 23 (L3) and high frequency transformer 24 (TR1), above-mentioned two parts are bolted together to the outside of the left plate 3 of cabinet 1 by keyset, and protective cover 5 is also arranged with outside it, and this protective cover 5 is evenly provided with several hollow out grids, and then form the open storehouse be arranged at outside cabinet 1, resonance reactance 23 (L3) and high frequency transformer 24 (TR1) is made to be arranged in open storehouse, make user can see the operating state of resonance reactance 23 (L3) and high frequency transformer 24 (TR1) intuitively.

Known with reference to accompanying drawing 3, power model 26 on the back side panel 8 of cabinet 1 includes input rectifying module 12 (D1), IGBT module 14 (IGBT1-IGBT4), slow discharge resistance module 13 (R4A, R4B), counnter attack diode 27 (D4), output rectification module 15 (D2, D3), wherein, IGBT module 14 is the bridge architectures be made up of four IGBT submodules, effectively can ensure the working effect of IGBT module 14; With upper module because power is comparatively large, heating is comparatively obvious, forms power model 26, therefore all make to be fixed by bolts on back side panel 8, and back side panel 8 is connected with radiator, effectively to dispel the heat to above-mentioned power model 26.

Known with reference to accompanying drawing 4-5, the top board 4 of cabinet 1 is provided with voltage sensor module 28 (TV1-TV3), current sensor module 29 (TA1-TA3), and these two modules are all be fixed on above the top board 4 of cabinet 1 by keyset; Cabinet 1 inside is also provided with drive plate unit 32, signal plate unit 31 and power panel unit 30, wherein drive plate unit 32 is fixed on above power model 26, voltage sensor module 28 (TV1-TV3), drive plate unit 32, signal plate unit 31 and the power panel unit 30 more than said constitute the control system in the technical program, connecting line in control system is low-voltage circuit, serves the effect to rectifier cabinet signal controlling.

And the line between main circuit module in the technical program is main circuit part, voltage is comparatively large, and frequency is higher, is mainly positioned at the left-half of rectifying device cabinet 1; And energy supply control module is mainly distributed in the right half part of rectifying device cabinet 1, compact structure makes command range shorter, the degree that control signal is disturbed is less, when not with main circuit module cross jamming, easily the control line of power model 26 can be connected to signal plate unit 31, settling signal transmits; After a procedure during trouble hunting, no matter be that fault point is detected or the operation that replacing device can be simple and easy to do.

In addition, most of component models in the technical program after being and being assembled in advance by a mounting panel again receiving in cabinet 1, in picturesque disorder between all parts module, link together easily via copper bar in same plane, because all devices are substantially in same plane, operate downward vertically during installation and maintenance at end face, each device installing/dismounting does not all interfere with each other, make its operability stronger, effectively improve the practicality of railcar rectifier cabinet.

When connecting main circuit module, concrete operation bag: UVW three-phase main line is entered cabinet from three, the left side cable joint of cabinet 1, through binding post, left plate 3 along cabinet 1 is connected to contactor resistive module 10 (KM1, KM2, R1, R2, R3), then be connected to the input rectifying module 12 (D1) of power model 26 along base plate 9 and return connection fast acting fuse 21 (FU1) and input reactance 22 module (L1), next step connects resistance (R4A, R4B) of discharging slowly, then to support capacitance module 11 (C1, C1B); Be connected with IGBT module 14 (IGBT1-4) by the composite bus bar of support capacitance module 11, two-route wire is drawn from IGBT module 14 output, one route is through the high frequency transformer (TR1) outside current sensor (TA1) to cabinet 1, and resonance reactance 23 (L3) of separately leading up to is connected to the high frequency transformer (TR1) outside cabinet 1; After high frequency transformer output is connected to and exports rectification module 15 (comprising rectification diode D2 and rectification diode D3), one end exports 110V-, the other end connects output reactance 19 (L2), at these two ends Parallel opertation filter capacitor module (C3A, C3B), after parallel connection, connect output reactance 19 (L2) end point two-way, one tunnel exports 110VB+ through over-current sensor (TA2), and another road exports 110VA+ through counnter attack diode 27 (D4) and current sensor (TA3).

The railcar rectifier cabinet that the utility model provides, by above-mentioned rational deployment structure, can on the basis ensureing the electric properties such as power output, the overall dimension of effective reduction railcar rectifier cabinet cabinet 1, and optimize Electro Magnetic Compatibility, what make rectifier cabinet device uses and runs more reliable and more stable, and then improves the practicality of rectifier cabinet, is conducive to the propagation and employment in market.

Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.

Claims (10)

1. a railcar rectifier cabinet, is characterized in that, comprises cabinet, and described cabinet is the hermetically-sealed construction be made up of left plate, right plate, back side panel, front cabinet door, base plate and top board; The main circuit module that described hermetically-sealed construction inside is provided with energy supply control module and is connected with described energy supply control module, described main circuit module comprises:

Contactor resistive module, be arranged on described base plate with described front cabinet door and the mutually close one end of described left plate;

Input rectifying module, is connected with described contactor resistive module, is arranged at one end mutually close with described top board on described back side panel;

Support capacitance module, is connected with described input rectifying module, be arranged on described base plate with described back side panel and the mutually close one end of left plate, and form with described contactor resistive module the first tandem paralleled with described left plate;

Slow discharge resistance module, is in parallel with described support capacitance module and is connected in described input rectifying module, be arranged at one end mutually close with described base plate on described back side panel;

IGBT module, is connected in parallel in described input rectifying module with described slow discharge resistance, support capacitance module, is arranged between described input rectifying module on described back side panel and described slow discharge resistance module;

Step-down isolation module, is connected with described IGBT module, is arranged at outside described left plate;

Export rectification module, be connected with described step-down isolation module, be arranged at one end mutually close with described right plate on described back side panel;

Output filtering module, is in parallel with described output rectification module, is arranged at one end mutually close with described right plate on described base plate, and parallels with the first tandem on described base plate.

2. railcar rectifier cabinet according to claim 1, it is characterized in that, the current-limiting resistance unit that described contactor resistive module comprises the first charging contactor, the second charging contactor and is made up of the first resistance be in parallel, the second resistance and the 3rd resistance;

Described current-limiting resistance unit one end is connected with the input of three-phase alternating current by the second charging contactor, the other end of described current-limiting resistance unit is connected with described input rectifying module, and described first charging contactor is in parallel with the link in tandem be made up of described second charging contactor and described current-limiting resistance unit.

3. railcar rectifier cabinet according to claim 2, is characterized in that, described input rectifying module is the first bridge rectifier be made up of six diodes;

Described output rectification module is the second bridge rectifier be made up of four diodes.

4. railcar rectifier cabinet according to claim 3, is characterized in that, described support capacitance module comprises the first electric capacity parallel with one another and the second electric capacity;

Described slow discharge resistance module comprises the 4th resistance parallel with one another and the 5th resistance;

Described output filtering module comprises the output reactance be connected with described output rectification module and the output filter capacitor unit be connected with described output reactance, and described output filter capacitor unit comprises the 3rd electric capacity parallel with one another and the 4th electric capacity.

5. railcar rectifier cabinet according to claim 4, it is characterized in that, described main circuit module also comprises the fast acting fuse be connected with described input rectifying module and the input reactance be connected with described fast acting fuse, described fast acting fuse and input reactance are all arranged at one end mutually close with described front cabinet door on described base plate, and described fast acting fuse and described input reactance form the second tandem paralleled with described first tandem.

6. railcar rectifier cabinet according to claim 5, it is characterized in that, described step-down isolation module comprises the resonance reactance matched with described IGBT module and the high frequency transformer be connected with described resonance reactance, and described resonance reactance and described high frequency transformer are juxtaposed on the lateral surface of described left plate.

7. railcar rectifier cabinet according to claim 6, it is characterized in that, described main circuit module also comprises the capacitance be connected with described IGBT module, described capacitance is connected with described high frequency transformer by described resonance reactance, described capacitance is arranged at one end mutually close with described back side panel on base plate, and is arranged in the second tandem of being made up of described fast acting fuse and described input reactance.

8. railcar rectifier cabinet according to claim 1, it is characterized in that, described main circuit module also comprises the counnter attack diode be connected with output filtering module with output rectification module, described counnter attack diode is arranged between described output rectification module on described back side panel and described IGBT module, and mutually close with described base plate.

9. according to the railcar rectifier cabinet in claim 1-8 described in any one, it is characterized in that, also comprise the heat abstractor of rectangular configuration, described heat abstractor is connected with described back side panel, and is arranged at the left end of described back side panel.

10. according to the railcar rectifier cabinet in claim 1-8 described in any one, it is characterized in that, the outside of described step-down isolation module is provided with protective cover, described protective cover is evenly provided with several hollow out grids.