CN221961445U - Wiring cabinet for traction converter - Google Patents

Abstract

The utility model discloses a wiring cabinet for a traction converter, which comprises a bracket, wherein the top of the bracket is fixedly connected with a cabinet body, the front surface of the cabinet body is rotationally connected with a cabinet door, the bottom of the cabinet body is fixedly connected with a fixed cover, the fixed cover is communicated with the cabinet body, the inside of the fixed cover is fixedly connected with a threading plate, the inside of the threading plate is provided with a plurality of threading holes, the inside of the threading holes is fixedly connected with a sealing air bag, the bottom of the threading plate is provided with a mounting groove, the inside of the mounting groove is inlaid with a U-shaped pipe, and the sealing air bags are communicated with a uniform U-shaped pipe. The utility model solves the problem of poor tightness of the wiring cabinet of the existing traction converter.

Description

Junction cabinets for traction converters

Technical Field

The utility model belongs to the technical field of wiring cabinets and relates to a wiring cabinet for a traction converter.

Background Art

The main function of the traction inverter is to convert electrical energy between DC and AC, convert DC power from the contact network into three-phase AC power, and realize starting, braking, and speed control of the AC traction motor through voltage and frequency control. When installing the traction inverter, a junction cabinet is required to connect the wires.

When the wires are passed through the wiring cabinet, they need to pass through the wire holes. However, the sealing between the wire holes and the wires of traditional wiring cabinets is poor, which makes it easy for water vapor and dust to enter the wiring cabinet through the gap between the wire holes and the wires. Under the erosion of water vapor and other factors, the wiring is easily corroded and loosened, resulting in poor contact and affecting the normal operation of the equipment.

Summary of the invention

In order to achieve the above-mentioned purpose, the utility model provides a wiring cabinet for a traction converter, which solves the problem of poor sealing of the wiring cabinet of the existing traction converter.

In order to solve the above technical problems, the technical solution adopted by the utility model is a wiring cabinet for a traction inverter, comprising a bracket, the top of the bracket is fixedly connected to a cabinet body, the front of the cabinet body is rotatably connected to a cabinet door, the bottom of the cabinet body is fixedly connected to a fixed cover, and the fixed cover is connected to the cabinet body, the interior of the fixed cover is fixedly connected to a threading plate, the interior of the threading plate is provided with a plurality of threading holes, the interiors of the plurality of threading holes are fixedly connected to sealing airbags, the bottom of the threading plate is provided with an installation groove, the interior of the installation groove is inlaid with a U-shaped tube, and a plurality of sealing airbags are evenly connected to the U-shaped tube.

Furthermore, a pressurizing cylinder is fixedly connected to the bottom of the cabinet, a connecting pipe is connected between the pressurizing cylinder and the U-shaped tube, the end of the pressurizing cylinder away from the air outlet is fixedly connected to a threaded sleeve, the internal thread of the threaded sleeve is sleeved with a screw, the end of the screw located inside the pressurizing cylinder is rotatably connected to a fixed block, the outside of the fixed block is fixedly sleeved with a rubber sleeve, and the rubber sleeve is in contact with the inner wall of the pressurizing cylinder, and the end of the screw located outside the pressurizing cylinder is fixedly connected to a knob.

Furthermore, an air outlet bin is fixedly connected to one side of the cabinet, and the air outlet bin is communicated with the cabinet, and an exhaust fan is fixedly connected to one end of the air outlet bin away from the cabinet; an air inlet window is provided on the side of the cabinet fixedly connected to the air outlet bin, and a protective net is provided inside the air inlet window.

Furthermore, a mounting frame is fixedly connected to the inner wall of the cabinet, a storage box is movably sleeved inside the mounting frame, and a desiccant is placed inside the storage box.

Furthermore, a temperature and humidity detector is fixedly connected to the interior of the cabinet, a warning light is fixedly connected to the top of the cabinet, a controller is fixedly connected to the interior of the cabinet, and the temperature and humidity detector and the warning light are both electrically connected to the controller.

Furthermore, two slide plates are fixedly connected to the inner side of the cabinet, and two sealing plates are slidably connected inside the two slide plates, and the two sealing plates correspond to the air outlet bin and the air inlet window respectively. A double-headed electric push rod is installed on the inner side of the cabinet, and the two sealing plates are fixedly connected to the two output ends of the double-headed electric push rod respectively, and the double-headed electric push rod is electrically connected to the controller.

Furthermore, a sealing ring is fixedly connected to the inner side of the cabinet door, and a cabinet lock is installed inside the cabinet door.

The beneficial effects of the utility model are:

1. The utility model injects the gas in the pressurized cylinder into a plurality of sealed air bags through the connecting pipe and the U-shaped pipe respectively, so that the sealed air bags fit the outside of the wires, thereby improving the sealing of the threading holes of the wiring cabinet, thereby preventing external water vapor and dust from entering the cabinet and preventing the joints from being corroded.

2. The utility model detects the temperature and humidity in the wiring cabinet through the temperature and humidity detector. When the temperature is too high, the sealing plate can be opened for ventilation and heat dissipation. When the external humidity is too high, the sealing plate can be closed to prevent water from entering the cabinet. At the same time, when the temperature and humidity exceed the safe value, the warning light can be used to issue an alarm in time to avoid accidents.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic structural diagram of a connection cabinet for a traction converter according to the present invention.

FIG. 2 is a bottom view of a wiring cabinet for a traction converter according to the present invention.

FIG3 is a schematic diagram of the cross-sectional structure of the pressurizing cylinder of the present invention.

FIG. 4 is a schematic structural diagram of a threading plate of the present invention.

FIG5 is a schematic diagram of the internal structure of the cabinet of the present invention.

In the figure, 1. bracket, 2. cabinet, 3. cabinet door, 4. fixing cover, 5. threading plate, 6. threading hole, 7. sealing airbag, 8. U-shaped tube, 9. pressurizing cylinder, 10. connecting tube, 11. rubber sleeve, 12. fixing block, 13. screw, 14. threaded sleeve, 15. knob, 16. installation slot, 17. air outlet bin, 18. exhaust fan, 20. installation frame, 21. storage box, 23. cabinet lock, 24. temperature and humidity detector, 25. warning light, 26. sealing ring, 27. controller, 28. air inlet window, 29. slide plate, 30. blocking plate, 31. double-head electric push rod.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

As shown in Figures 1 to 5, the utility model provides a wiring cabinet for a traction converter, including a bracket 1, the top of the bracket 1 is fixedly connected to a cabinet body 2, the front of the cabinet body 2 is rotatably connected to a cabinet door 3, the bottom of the cabinet body 2 is fixedly connected to a fixed cover 4, and the fixed cover 4 is communicated with the cabinet body 2, the interior of the fixed cover 4 is fixedly connected to a threading plate 5, the interior of the threading plate 5 is provided with a plurality of threading holes 6, the interiors of the plurality of threading holes 6 are all fixedly connected with sealing airbags 7, the bottom of the threading plate 5 is provided with a mounting groove 16, the interior of the mounting groove 16 is inlaid with a U-shaped tube 8, and a plurality of sealing airbags 7 are evenly connected to the U-shaped tubes 8, and the provided sealing airbags 7 can fit tightly to the outside of the wires located therein, thereby improving the sealing of the wiring cabinet, thereby preventing external moisture and dust from entering the interior of the cabinet body 2 and preventing the joints from being corroded.

A pressurizing cylinder 9 is fixedly connected to the bottom of the cabinet 2, and a connecting pipe 10 is connected between the pressurizing cylinder 9 and the U-shaped tube 8. A threaded sleeve 14 is fixedly connected to the end of the pressurizing cylinder 9 away from the air outlet, and a screw 13 is threadedly sleeved on the inner thread of the threaded sleeve 14. The end of the screw 13 located inside the pressurizing cylinder 9 is rotatably connected to a fixed block 12, and a rubber sleeve 11 is fixedly sleeved on the outside of the fixed block 12, and the rubber sleeve 11 fits against the inner wall of the pressurizing cylinder 9. A knob 15 is fixedly connected to the end of the screw 13 located outside the pressurizing cylinder 9. By rotating the screw 13, the fixed block 12 can be pressed down, so that gas can be filled into the interior of multiple sealing airbags 7, and then wires of different thicknesses can be sealed.

In some embodiments, an air outlet bin 17 is fixedly connected to one side of the cabinet 2, and the air outlet bin 17 is in communication with the cabinet 2. An exhaust fan 18 is fixedly connected to one end of the air outlet bin 17 away from the cabinet 2. The exhaust fan 18 can be used to discharge hot air inside the cabinet 2, thereby reducing the temperature inside the cabinet 2.

In some embodiments, an air inlet window 28 is provided on one side of the cabinet 2 fixedly connected to the air outlet bin 17, and a protective net is provided inside the air inlet window 28. The protective net can prevent flying insects and debris from entering the cabinet 2.

In some embodiments, the inner wall of the cabinet body 2 is fixedly connected with a mounting frame 20, and the interior of the mounting frame 20 is movably sleeved with a storage box 21, and a desiccant is placed inside the storage box 21. The desiccant can keep the interior of the wiring cabinet dry, thereby preventing the wiring from being corroded and improving the stability of the wiring.

In some embodiments, a temperature and humidity detector 24 is fixedly connected to the interior of the cabinet 2, a warning light 25 is fixedly connected to the top of the cabinet 2, a controller 27 is fixedly connected to the interior of the cabinet 2, and the temperature and humidity detector 24 and the warning light 25 are electrically connected to the controller 27. The temperature and humidity inside the wiring cabinet can be detected by the set temperature and humidity detector 24. When the temperature and humidity exceed the safety value, the warning light 25 can promptly issue an alarm to avoid accidents.

In some embodiments, two slide plates 29 are fixedly connected to the inner side of the cabinet 2, and two sealing plates 30 are slidably connected inside the two slide plates 29, and the two sealing plates 30 correspond to the air outlet bin 17 and the air inlet window 28 respectively. A double-headed electric push rod 31 is installed on the inner side of the cabinet 2, and the two sealing plates 30 are fixedly connected to the two output ends of the double-headed electric push rod 31 respectively. The double-headed electric push rod 31 is electrically connected to the controller 27. The movement of the sealing plate 30 can be controlled by the set double-headed electric push rod 31, so that the sealing plate 30 can be opened in time for ventilation and heat dissipation when the temperature inside the cabinet 2 is too high. When the external humidity is too high, the sealing plate 30 is closed to prevent water vapor from entering the interior of the cabinet 2.

In some embodiments, a sealing ring 26 is fixedly connected to the inner side of the cabinet door 3 , and a cabinet lock 23 is installed inside the cabinet door 3 .

When the wiring cabinet for traction converter provided by the utility model is used, its working process is as follows:

When it is necessary to insert the wires into the wiring cabinet, first connect the multiple wires into the wiring cabinet, then turn the knob 15, and then drive the screw 13 to rotate. Then, under the action of the thread, the screw 13 pushes the fixed block 12 downward, so that the gas in the pressurized cylinder 9 can be injected into the multiple sealing airbags 7 through the connecting pipe 10 and the U-shaped tube 8 respectively, so that the sealing airbags 7 can fit the outside of the wires, thereby improving the sealing of the wiring cabinet, thereby preventing external water vapor and dust from entering the cabinet body 2 and preventing the joints from being corroded.

The temperature and humidity inside the wiring cabinet can be detected by the temperature and humidity detector 24. When the temperature inside the cabinet 2 is too high, the sealing plate 30 is opened in time by the double-headed electric push rod 31 for ventilation and heat dissipation. When the external humidity is too high, the sealing plate 30 is closed in time by the double-headed electric push rod 31 to prevent water from entering the cabinet 2. When the temperature and humidity exceed the safe value, the warning light 25 will promptly sound an alarm to avoid accidents.

It should be noted that the circuit connection methods not mentioned in the present invention are all connection methods that can be easily implemented by those skilled in the art based on their professional skills.

Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims (7)

1. A wiring cabinet for a traction converter, comprising a bracket (1), characterized in that: a cabinet body (2) is fixedly connected to the top of the bracket (1), a cabinet door (3) is rotatably connected to the front of the cabinet body (2), a fixed cover (4) is fixedly connected to the bottom of the cabinet body (2), and the fixed cover (4) is connected to the cabinet body (2), a threading plate (5) is fixedly connected to the inside of the fixed cover (4), a plurality of threading holes (6) are provided inside the threading plate (5), a plurality of threading holes (6) are fixedly connected to the inside of each of the threading holes (6), a mounting groove (16) is provided at the bottom of the threading plate (5), a U-shaped tube (8) is embedded inside the mounting groove (16), and a plurality of sealing airbags (7) are evenly connected to the U-shaped tube (8). 2. The wiring cabinet for a traction converter according to claim 1 is characterized in that: a pressurizing cylinder (9) is fixedly connected to the bottom of the cabinet body (2), a connecting pipe (10) is connected between the pressurizing cylinder (9) and the U-shaped tube (8), a threaded sleeve (14) is fixedly connected to the end of the pressurizing cylinder (9) away from the air outlet, a screw (13) is threadedly sleeved on the inner thread of the threaded sleeve (14), and the end of the screw (13) located inside the pressurizing cylinder (9) is rotatably connected to a fixed block (12), the outside of the fixed block (12) is fixedly sleeved with a rubber sleeve (11), and the rubber sleeve (11) is in contact with the inner wall of the pressurizing cylinder (9), and the end of the screw (13) located outside the pressurizing cylinder (9) is fixedly connected to a knob (15). 3. The wiring cabinet for a traction converter according to claim 1, characterized in that: an air outlet bin (17) is fixedly connected to one side of the cabinet (2), and the air outlet bin (17) is communicated with the cabinet (2), and an exhaust fan (18) is fixedly connected to one end of the air outlet bin (17) away from the cabinet (2); an air inlet window (28) is provided on the side of the cabinet (2) fixedly connected to the air outlet bin (17), and a protective net is provided inside the air inlet window (28). 4. The wiring cabinet for a traction converter according to claim 1, characterized in that: a mounting frame (20) is fixedly connected to the inner wall of the cabinet body (2), a storage box (21) is movably sleeved inside the mounting frame (20), and a desiccant is placed inside the storage box (21). 5. The wiring cabinet for a traction converter according to claim 1, characterized in that: a temperature and humidity detector (24) is fixedly connected inside the cabinet (2), a warning light (25) is fixedly connected to the top of the cabinet (2), a controller (27) is fixedly connected inside the cabinet (2), and the temperature and humidity detector (24) and the warning light (25) are both electrically connected to the controller (27). 6. The wiring cabinet for a traction inverter according to claim 3 is characterized in that: two slide plates (29) are fixedly connected to the inner side of the cabinet body (2), two sealing plates (30) are slidably connected inside the two slide plates (29), and the two sealing plates (30) respectively correspond to the air outlet bin (17) and the air inlet window (28), a double-headed electric push rod (31) is installed on the inner side of the cabinet body (2), and the two sealing plates (30) are respectively fixedly connected to the two output ends of the double-headed electric push rod (31), and the double-headed electric push rod (31) is electrically connected to the controller (27). 7. The connection cabinet for a traction converter according to claim 1, characterized in that a sealing ring (26) is fixedly connected to the inner side of the cabinet door (3), and a cabinet lock (23) is installed inside the cabinet door (3).