CN219678324U - Rectifying device for engineering locomotive - Google Patents

Abstract

The utility model provides a rectifying device for an engineering locomotive, which comprises a cabinet frame, a plurality of insulating upright post plates, a plurality of rectifying components and RC absorption components, wherein the connecting end of the cabinet frame is connected with the ventilation end of a generator of the engineering locomotive, the insulating upright post plates are all parallel to a first shaft and fixedly arranged on the inner wall of the cabinet frame, a groove body is formed between every two adjacent insulating upright post plates, and the rectifying components are fixedly arranged in the groove body. The rectifying device and the engineering locomotive generator share one set of ventilation system, the connecting ends and the air inlet ends are arranged at the two ends of the cabinet frame, the connecting ends are connected with the ventilation ends of the generator, radiating wind generated by the external ventilation system is led into the cabinet frame from the air inlet ends of the cabinet frame to radiate the rectifying component of the tank body, and then is led into the generator through the connecting ends of the cabinet frame and the ventilation ends of the generator to radiate the generator.

Description

Rectifying device for engineering locomotive

Technical Field

The utility model relates to the technical field of rectifying equipment, in particular to a rectifying device for an engineering locomotive.

Background

The engineering locomotive is equipped with a single diesel engine and a generator, and the matched rectifying device is equipped with an independent fan to serve as dual functions of traction and electricity utilization of a residence. The existing engineering locomotive rectifying device is complicated in structure, huge in size and complicated in overhaul and maintenance due to the fact that a ventilation system is independently configured.

Disclosure of Invention

The embodiment of the utility model provides a rectifying device for an engineering locomotive, which shares a set of ventilation system with a generator, and radiating wind exhausted by the generator enters an air channel of the rectifying device to radiate a rectifying component arranged in the air channel.

The embodiment of the utility model provides a rectifying device for an engineering locomotive, which comprises a cabinet frame, a plurality of insulating upright post plates, a plurality of rectifying assemblies and RC (resistance capacitance) absorption assemblies, wherein the cabinet frame is provided with a connecting end and an air inlet end which are opposite to each other on a first shaft, the connecting end is connected with a ventilation end of an engineering locomotive generator, the insulating upright post plates are all parallel to the first shaft and fixedly arranged on the inner wall of the cabinet frame, the insulating upright post plates are sequentially and equidistantly arranged along a second shaft, a groove body is formed between the adjacent insulating upright post plates, the rectifying assemblies are equal in number and correspond to the groove bodies one by one, the rectifying assemblies are fixedly arranged in the opposite groove bodies, the RC absorption assemblies are fixedly arranged at the ends of the insulating upright post plates, the RC absorption assemblies and the groove bodies are encircled into a plurality of air channels, and the rectifying assemblies are positioned in the opposite air channels.

In one possible implementation, the rectifying device further includes a copper busbar electrically connected to the rectifying component.

The rectifying device and the generator are integrated, the structure is compact, front and back wiring is adopted, wiring is convenient and fast, when the rectifying component is maintained and replaced, only the connecting copper bars on the conducting handle of the radiator of the rectifying component are required to be removed, on-line maintenance is convenient and fast, the labor intensity of maintenance is reduced, the maintenance man-hour is reduced, and labor is saved.

In one possible implementation, the rectifying assembly includes a number of semiconductor devices, a number of heat sinks, a number of conductive bars, and a connection frame;

the semiconductor devices and the heat sinks are sequentially and alternately stacked on a second shaft, and the semiconductor devices are clamped by two adjacent heat sinks;

the conductive bars are equal in number to the radiators and correspond to the radiators one by one, and the conductive bars are positioned on the side surfaces of the radiators in contact electrical connection;

the copper bus is electrically connected with the plurality of conductive bars;

the connecting frame is fixedly connected with the insulating upright post plate in a fixed mode, and the semiconductor devices, the radiators and the conductive bars are alternately stacked in sequence.

In one possible implementation manner, a plurality of insulating column plates are provided with guide grooves, and the connecting frame is in sliding connection with the guide grooves.

In one possible implementation manner, an insulating door plate is arranged at one end of the third shaft of the cabinet frame, a through groove is formed in the insulating door plate, and a part of the copper bus penetrates through the through groove.

In one possible implementation, the air inlet end of the cabinet frame is provided with a filter screen.

In one possible implementation, the semiconductor device is a diode element.

According to the rectifying device for the engineering locomotive, the rectifying device and the engineering locomotive generator share the same set of ventilation system, the connecting ends and the air inlet ends are arranged at the two ends of the cabinet frame, the connecting ends are connected with the ventilation ends of the generator, radiating air generated by the external ventilation system is led into the cabinet frame through the air inlet ends of the cabinet frame to radiate the rectifying component of the tank body, and then is led into the generator through the connecting ends of the cabinet frame and the ventilation ends of the generator to radiate the generator.

Drawings

FIG. 1 is a schematic diagram of a rectifying device for an engineering locomotive provided by the utility model;

FIG. 2 is a front sectional view of FIG. 1;

FIG. 3 is a side cross-sectional view of FIG. 1;

figure 4 is a schematic diagram of the structure of a deflector assembly;

FIG. 5 is a schematic diagram of a rectifying device and a generator assembled;

fig. 6 is a side view of fig. 5.

Reference numerals illustrate:

1. a variable flow assembly; 2. an insulating column plate; 3. an RC absorption assembly; 4. a copper busbar; 5. a cabinet frame; 6. a nut; 7. a pressing plate; 8. a belleville spring; 9. a guide rod; 10. a positioning pin; 11. a heat sink; 12. an insulating pad; 13. a steel pad; 14. steel balls; 15. t-shaped pad; 16. a sleeve; 17. a semiconductor device; 18. a hanging plate; 19. a conductive bar; 20. and (3) a screw.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

The engineering locomotive is equipped with a single diesel engine and a generator, and the matched rectifying device is equipped with an independent fan to serve as dual functions of traction and electricity utilization of a residence. The existing engineering locomotive rectifying device is complicated in structure, huge in size and complicated in overhaul and maintenance due to the fact that a ventilation system is independently configured.

After being changed into a double generator set, each generator is independently provided with a rectifying device, so that the double generator set can be flexibly combined. The space of the locomotive is limited, and the rectifying device has small required volume and applicable power. The ventilation system of the generator is used as a heat radiation source of the rectifying device, the wind pressure of a fan of the generator is small, and the wind resistance of a system formed by the motor and the rectifying device is large. Aiming at the severe requirements of low-wind-speed full-load working conditions, the conventional rectifying device is difficult to meet the requirements.

The rectifying device and the generator share one set of ventilation system, and the radiating wind generated by the external ventilation system is led into the cabinet frame from the air inlet end of the cabinet frame to radiate the rectifying component of the tank body, and then led into the generator through the cabinet frame connecting end and the generator ventilation end to radiate the generator.

The front and back wiring is adopted, the wiring is convenient, and when the rectifying component is maintained and replaced, only the connecting copper bars on the conducting handle of the radiator of the rectifying component are required to be removed, so that the on-line maintenance is convenient and quick, the labor intensity of the maintenance is reduced, the maintenance man-hour is reduced, and the labor is saved.

The following describes in detail a specific structure of the rectifying device for an engineering locomotive provided by the present utility model with reference to the accompanying drawings.

Referring to fig. 1-3, an embodiment of the present utility model provides a rectifying device for an engineering locomotive, including a cabinet frame 5, a plurality of insulating pillar panels 2, a plurality of rectifying assemblies 1, and an RC absorbing assembly 3;

as shown in fig. 1, the cabinet frame 5 may be a cuboid with a certain strength, the cabinet frame 5 has a connection end and an air inlet end which are opposite on a first axis, the first axis is in an up-down direction, the connection end is connected with a ventilation end of an engineering locomotive generator, the plurality of insulating upright post plates 2 are all parallel to the first axis and fixedly arranged on the inner wall of the cabinet frame 5, the plurality of insulating upright post plates 2 are sequentially and equidistantly arranged along a second axis, a groove body is formed between adjacent insulating upright post plates 2, in the embodiment shown in fig. 2, 4 insulating upright post plates 2 are vertically arranged and transversely and equidistantly distributed, 3 vertical groove bodies are formed, the bottom end of each groove body is the connection end, and the upper end of each groove body is the air inlet end;

the rectifying assemblies 1 are equal in number and correspond to the grooves one by one, the rectifying assemblies 1 are fixedly arranged in the opposite grooves, the RC absorption assemblies 3 are fixedly arranged at the end parts of the insulating upright post plates 2, the RC absorption assemblies 3 can be RC resistance-capacitance absorbers which are mainly used for eliminating overvoltage generated in reversing operation of devices, the RC absorption assemblies 3 and the grooves are encircled to form a plurality of air channels, and the rectifying assemblies 1 are positioned in the opposite air channels;

referring to fig. 2, 3 rectifying assemblies 1 are respectively disposed in 3 slots, RC absorbing assemblies 3 are disposed at the front ends of the 3 slots, so that the front ends of the 3 slots are sealed to form three square tubular air channels, the bottom ends of the air channels are connection ends, the upper ends of the air channels are air inlet ends, the connection ends of the cabinet frames 5 are connected with the ventilation ends of the locomotive generator, an external ventilation system is connected with the air inlet ends of the cabinet frames 5, namely, the upper ends of the cabinet frames 5 are connected and ventilated downwards, and heat dissipation air generated by the ventilation system enters the 3 air channels and flows downwards, in the process, the 3 rectifying assemblies 1 dissipate heat, then the heat dissipation air is introduced into the generator through the cabinet frame connection ends and the generator ventilation ends, so that the rectifying devices and the generator share a set of ventilation system, the structure of the rectifying assemblies 1 is simplified, and maintenance is facilitated.

According to the rectifying device for the engineering locomotive, the rectifying device and the engineering locomotive generator share the same set of ventilation system, the connecting ends and the air inlet ends are arranged at the two ends of the cabinet frame 5, the connecting ends are connected with the ventilation ends of the generator, so that cooling air exhausted by the engine enters the cabinet frame 5 and is exhausted from the air inlet ends, and therefore the rectifying component 1 in the cabinet frame 5 is cooled.

Referring to fig. 1 and 2, in some embodiments, the rectifying device further includes copper bus bars 4, and the copper bus bars 4 are electrically connected to the conductive bars of the rectifying assembly 1, thereby forming a three-phase rectifying circuit.

Referring to fig. 4, in some embodiments, the rectifying assembly 1 includes a number of semiconductor devices 17, a number of heat sinks 11, a number of conductive bars 19, and a connection frame;

the plurality of semiconductor devices 17 and the plurality of heat sinks 11 are sequentially and alternately stacked and arranged on the second axis, and the plurality of semiconductor devices 17 are clamped by the two heat sinks 11 adjacent to the plurality of semiconductor devices 17;

the plurality of conductive bars 19 are equal in number to the plurality of heat sinks 11 and correspond to each other one by one, and the plurality of conductive bars 19 are positioned on the side surfaces of the opposite heat sinks 11 and are in contact electrical connection;

in the embodiment shown in fig. 4, the heat dissipation device has the characteristics that 1 semiconductor device 17, 2 radiators 11, two conducting bars 19,2 radiators 11 clamp the semiconductor device 17, two conducting bars 19 clamp 2 radiators 11, the semiconductor device 17 dissipates heat through the 2 radiators 11, so that the heat dissipation effect is ensured, in addition, the radiator 11 is preferably a copper radiator, the copper radiator has strong heat dissipation capacity, the protection device can reliably work under low wind speed, the wind resistance of a low flow channel of a generator cooling fan is high, and the wind inlet speed of a rectifying device is low.

The copper bus 4 is electrically connected with the plurality of conductive bars 19 so as to form a three-phase rectifying circuit, the rectifying device and the generator are integrated, the structure is compact, front and rear wiring is adopted, wiring is convenient and fast, when the rectifying component is maintained and replaced, only the connecting copper bars on the conductive handles of the radiator of the rectifying component are required to be removed, on-line maintenance is convenient and fast, the labor intensity of maintenance is reduced, the maintenance man-hour is reduced, and the labor cost is saved.

When the rectifying component 1 is maintained and replaced, the rectifying component 1 can be extracted for replacement only by removing the insulating door plate and the connecting copper bus 4 on the conductive handle of the radiator of the rectifying component 1 and removing the RC absorption component 3, and the replacement and maintenance are convenient.

The connection frame fixes the plurality of semiconductor devices 17, the plurality of heat sinks 11, and the plurality of conductive bars 19, which are alternately stacked in order, and the connection frame is fixedly connected with the insulating stud board 2.

The connecting frame comprises two hanging plates 18, two pressing plates 7, a plurality of damping pads, a guide rod 9, a belleville spring 8, a T-shaped pad 15, steel balls 14, a steel pad 13, two insulating pads 12, a plurality of sleeves 16, a plurality of screws 20 and a plurality of nuts 6.

Referring to fig. 4, two hanging plates 18 are oppositely arranged, two hanging plates 18 are spaced at a certain distance, two pressing plates 7 are respectively arranged on opposite surfaces of the two hanging plates 18, a plurality of vibration reduction pads are divided into two groups opposite to the two hanging plates 18 and the two pressing plates 7, the two groups of vibration reduction pads are respectively positioned between the opposite hanging plates 18 and the pressing plates 7, and in the actual use process, the vibration reduction pads can play a role in buffering and damping, so that the semiconductor device 17 is protected.

The middle parts of the two pressing plates 7 are respectively provided with an inserting hole, the inserting holes are preferably through holes, the guide rod 9 and the T-shaped pad 15 are respectively arranged on opposite surfaces of the two pressing plates 7, the guide rod 9 and the T-shaped pad 15 can be T-shaped, the small end part and the large end part of the guide rod 9, which are specific opposite, can be cylindrical, the large end part can be disc-shaped, the small end part of the guide rod 9 is inserted into the inserting holes of the adjacent pressing plates 7, in a natural state, a part of the small end part is inserted into the inserting holes, the disc-shaped spring 8 is sleeved on the outer wall of the guide rod 9, the right end of the disc-shaped spring 8 is abutted to the large end part of the guide rod 9, one end of the T-shaped pad 15 is inserted into the inserting holes of the adjacent pressing plates 7, the T-shaped pad 15 is attached to the pressing plates 7, the steel pad 13 is positioned at the other end of the T-shaped pad 15, namely the steel pad 13 is positioned at the left side of the T-shaped pad 15, the steel ball 14 is positioned between the steel pad 13 and the T-shaped pad 15, the opposite surfaces of the steel pad 13 and the T-shaped pad 15 are respectively provided with spherical grooves matched with the steel balls 14, the two insulating pads 12 are respectively arranged on the opposite surfaces of the guide rod 9 and the steel pad 13, 1 semiconductor devices 17, 2 radiators 11 and two heat sinks 11 are arranged between the two insulating pads 19 are respectively.

Opposite through holes are formed in the outer sides of the hanging plates 18, the pressing plates 7, the insulating pads 12, the conductive bars and the heat radiators 11, and the sleeves 16 penetrate through the through holes;

the screw rods 20 are equal in number and correspond to the sleeves 16 one by one, the screw rods 20 penetrate through the opposite sleeves 16, nuts 6 are screwed on two sides of the screw rods 20, and the nuts 6 on two sides of the screw rods 20 clamp the two hanging plates 18;

preferably, the length of the sleeve 16 is slightly smaller than the total length of the rectifying assembly, the two hanging plates 18 are provided with a certain thickness, after the rectifying assembly is combined, two ends of the sleeve 16 are respectively located in the middle of the through holes of the two hanging plates 18, when the belleville springs 8 are deformed in the use process, the sleeve 16 cannot penetrate through the through holes of the hanging plates 18 and cannot be separated from the through holes of the hanging plates 18, so that the sleeve 16 is ensured to limit the hanging plates 18, the sleeve 16 cannot obstruct the nuts 6 to be contacted with the hanging plates 18, and the plurality of nuts 6 are ensured to always clamp the hanging plates 18 and other parts.

The steel balls 14, the steel pads 13 and the T-shaped pads 15 are arranged, so that the center of the press-fit fixing frame is propped against, the force is uniformly distributed along the contact surface of the semiconductor device 17, and the whole press-fit fixing frame can ensure that the pressure applied in the pressing process and the final application is within the range required by the semiconductor device 17;

through belleville spring 8 and guide arm 9 setting, in the use, because of temperature variation, lead to semiconductor device 17 self inflation, belleville spring 8 can cushion, avoids semiconductor device 17 to damage because of the pressure is too big.

In some embodiments, the insulating pads 12 may have a certain strength, the opposite surfaces of the two insulating pads 12 are provided with positioning pins 10, the end portions of the positioning pins 10 extend towards the conductive bars 19, the two heat sinks 11 at the end portions are provided with positioning holes opposite to the positioning pins 10, and the two positioning pins 10 are plugged with the opposite holes, so that the insulating pads 12 and the conductive bars 19 are prevented from being misplaced, and the insulativity of the rectifying component is ensured.

Referring to fig. 3, in some embodiments, a plurality of insulating column plates 2 are provided with guide grooves, a hanging plate 18 of the connection frame is slidably connected with the guide grooves, the guide grooves may be square grooves, and the hanging plate 18 is slidably connected with the guide grooves and fixed by bolts.

Referring to fig. 3, in some embodiments, an insulating door panel is disposed at one end of the third shaft of the cabinet frame 5, and in fig. 3, the insulating door panel is disposed at the bottom end, and a through slot is formed in the insulating door panel, and a portion of the copper busbar 4 penetrates through the through slot.

Referring to fig. 1, in some embodiments, the air intake end of the cabinet 5 is provided with a filter screen to prevent debris from entering the cabinet 5.

In some embodiments, semiconductor device 17 is a diode element.

According to the technical characteristics, the working principle of the rectifying device for the engineering locomotive in the practical application scene is as follows:

referring to fig. 4, the converter assembly 1 is assembled, the sleeve 16 penetrates through the two hanging plates 18, the two pressing plates 7, the two insulating gaskets 12, the multiple conducting bars 19 and the multiple radiators 11, the screw 20 is inserted into the sleeve 16, the nut 6 is screwed, the nuts 6 positioned at two sides of the screw 20 clamp the hanging plates 18, the belleville springs 8 are compressed to a certain extent, the components such as the multiple semiconductor devices 17, the multiple radiators 11 and the multiple conducting bars 19 are stacked and fixed, the converter assembly 1 is fixedly arranged on the insulating upright post plate 2, the converter assembly 1 is positioned in a groove body, the RC absorption assembly and the copper bus 4 are sequentially fixed, and thus the assembly of the rectifier device can be completed, referring to fig. 5 and 6, the connecting end of the cabinet frame 5 is connected with the ventilation end of the generator, the rectifier device is matched with the generator, during operation, an external ventilation system is connected with the air inlet end of the cabinet frame 5, the heat dissipation air generated by the system is introduced into an air duct in the cabinet frame 5, the heat dissipation air duct 1 in the air duct is cooled, the heat dissipation assembly is cooled, and then the heat dissipation system 1 is cooled through the cabinet frame connecting end and the generator end are introduced into the generator, and the rectifier assembly is further convenient to repair the rectifier assembly and repair the rectifier assembly 1;

when the rectifying component 1 is maintained and replaced, the rectifying component 1 can be extracted for replacement only by removing the insulating door plate and the connecting copper bus 4 on the conductive handle of the radiator of the rectifying component 1 and removing the RC absorption component 3, and the replacement and maintenance are convenient.

It is to be understood that, based on the several embodiments provided in the present utility model, those skilled in the art may combine, split, reorganize, etc. the embodiments of the present utility model to obtain other embodiments, which all do not exceed the protection scope of the present utility model.

The foregoing detailed description of the embodiments of the present utility model further illustrates the purposes, technical solutions and advantageous effects of the embodiments of the present utility model, and it should be understood that the foregoing is merely a specific implementation of the embodiments of the present utility model, and is not intended to limit the scope of the embodiments of the present utility model, and any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present utility model should be included in the scope of the embodiments of the present utility model.

Claims (7)

1. A rectifying device for an engineering locomotive, characterized by: comprising the following steps:

a cabinet frame (5), wherein the cabinet frame (5) is provided with a connecting end and an air inlet end which are opposite on a first shaft, and the connecting end is connected with a ventilation end of an engineering locomotive generator;

the plurality of insulating column plates (2), the plurality of insulating column plates (2) are all parallel to the first shaft and fixedly arranged on the inner wall of the cabinet frame (5), the plurality of insulating column plates (2) are sequentially and equidistantly arranged along the second shaft, and a groove body is formed between every two adjacent insulating column plates (2);

the rectifying assemblies (1) are equal in number and correspond to the groove bodies one by one, and the rectifying assemblies (1) are fixedly arranged in the groove bodies;

RC absorption assembly (3), RC absorption assembly (3) set firmly in a plurality of the tip of insulating stand board (2), RC absorption assembly (3) with a plurality of the cell body surrounds into a plurality of wind channels, a plurality of rectifier module (1) are located relative wind channel.

2. The rectifying device according to claim 1, characterized in that:

the rectifying device further comprises a copper bus (4), and the copper bus (4) is electrically connected with the rectifying component (1).

3. The rectifying device according to claim 2, characterized in that:

the rectifying assembly (1) comprises a plurality of semiconductor devices (17), a plurality of heat sinks (11), a plurality of conductive bars (19) and a connecting frame;

the semiconductor devices (17) and the heat sinks (11) are sequentially and alternately stacked on a second axis, and the semiconductor devices (17) are clamped by the two heat sinks (11) adjacent to the semiconductor devices;

the conductive bars (19) are equal in number to the heat radiators (11) and correspond to each other one by one, and the conductive bars (19) are positioned on the side face opposite to the heat radiators (11) and are in contact electrical connection;

the copper bus bar (4) is electrically connected with a plurality of the conductive bars (19);

the connecting frame is used for fixing a plurality of semiconductor devices (17), a plurality of heat radiators (11) and a plurality of conductive bars (19) which are alternately stacked in sequence, and is fixedly connected with the insulating column plate (2).

4. A rectifying device according to claim 3, characterized in that:

and a plurality of insulating upright post plates (2) are respectively provided with a guide groove, and the connecting frame is in sliding connection with the guide grooves.

5. The rectifying device according to claim 2, characterized in that:

one end of a third shaft of the cabinet frame (5) is provided with an insulating door plate, the insulating door plate is provided with a through groove, and a part of the copper bus (4) penetrates through the through groove.

6. The rectifying device according to claim 5, wherein:

the air inlet end of the cabinet frame (5) is provided with a filter screen.

7. A rectifying device according to claim 3, characterized in that:

the semiconductor device (17) is a diode element.