CN219268283U - A rail transit power supply switch cabinet - Google Patents

Abstract

The application relates to the technical field of power supply switch cabinets, in particular to a rail transit power supply switch cabinet, which comprises: the switch cabinet comprises a switch cabinet main body, a feeder switch and a control unit, wherein a mounting cavity is formed for mounting the feeder switch, an air outlet is formed in the inner wall of the mounting cavity, and the air outlet penetrates through the mounting cavity and is communicated with the outside air; the temperature sensors are arranged in the mounting cavity at intervals and used for detecting the feeder switch temperature in the corresponding area; and the air blowing device slides on the inner wall of the mounting cavity, and when the temperature sensor detects that the feeder switch temperature of the corresponding area is too high, the air blowing device is controlled to blow air towards the corresponding area. This application has and slides to corresponding overheated regional adjacent position back through blast apparatus, carries out the accuracy to overheated region and bloies to improve overheated regional radiating effect, make feeder switch be difficult for being in overheated state work, thereby increase of service life's effect.

Description

A rail transit power supply switch cabinet

technical field

The present application relates to the technical field of power supply switchgear structure, in particular to a rail transit power supply switchgear.

Background technique

The feeder switchgear is a part of the power distribution of the traction power supply system in rail transit.

In the related art, there is an installation cavity on the feeder switchgear for the installation of the feeder switch. Since the number of the feeder switchgear is relatively large, the installation cavity is usually divided into upper and lower layers. During the operation of the feeder switchgear, a certain amount of heat will be emitted, especially When the load power of the internal feeder switch is large, it is easy to cause a rapid temperature rise. The feeder switch cabinet is usually equipped with corresponding cooling holes for the feeder switch to dissipate heat.

In view of the above-mentioned related technologies, when the heat is dissipated through the heat dissipation holes, the feeder switch that generates heat quickly cannot be cooled quickly, so that the feeder switch with a higher temperature cannot work at a good temperature, which is not conducive to prolonging the normal service life of the feeder switch .

Utility model content

In order to accurately and timely cool down the feeder switch that generates heat quickly, so as to prolong the service life of the feeder switch, the application provides a rail transit power supply switch cabinet.

A rail transit power supply switchgear provided by the application adopts the following technical scheme:

A rail transit power supply switchgear, comprising:

The main body of the switch cabinet is provided with an installation cavity for the installation of the feeder switch, and the inner wall of the installation cavity is provided with an air outlet hole, and the air outlet hole passes through the installation cavity to communicate with the outside air;

A plurality of temperature sensors are provided, and the plurality of temperature sensors are arranged at intervals in the installation cavity, and are used to detect the temperature of the feeder switch in the corresponding area;

The blowing device slides on the inner wall of the installation cavity, and when the temperature sensor detects that the temperature of the feeder switch in the corresponding area is too high, the blowing device is controlled to blow toward the corresponding area.

By adopting the above technical solution, the temperature sensor detects the temperature of the feeder switch in different areas. When the feeder switch in the corresponding area is overloaded and the temperature is too high, the blower is controlled to blow toward the corresponding area to improve the feeder in the corresponding area. The heat dissipation effect of the switch makes the feeder switch less prone to aging due to overheating and prolongs the service life.

Optionally, it also includes a lifting assembly, the lifting assembly includes a sliding rail and a slider, the sliding block is engaged with the sliding rail for transmission, the sliding block is connected with the blowing device, and is used to drive the The blowing device moves to the corresponding high temperature area for blowing.

By adopting the above technical solution, the sliding rail and the slider cooperate with each other, so that when the slider slides, the blowing device arranged on the slider is driven to move, so that the blowing device can blow and dissipate heat in the overheated area.

Optionally, the slider is fixedly provided with an embedded chute towards the side wall of the sliding rail, and the embedded chute is used for the insertion and sliding of the sliding rail, and the slider is provided with a servo motor , the servo motor is in drive connection with the sliding rail.

By adopting the above technical solution, the sliding rail is embedded and slid in the embedded chute, and the inner wall of the embedded chute and the side wall of the slider are mutually limited, so that the sliding block and the sliding rail are connected through transmission. When sliding, it is not easy to separate first, and at the same time, the servo motor is connected to the sliding rail to drive the slider to move to the side adjacent to the overheated area for the blowing device to blow and dissipate heat.

Optionally, the blowing device includes a driving fan and a first bellows, one end of the first bellows communicates with the driving fan, and the other end of the first bellows is detachably connected to the slider.

By adopting the above technical solution, the driving fan cooperates with the first bellows to realize the transmission of the flowing gas, so as to conduct heat dissipation treatment towards the overheated area under the guidance and sliding of the slider.

Optionally, a gas fire extinguishing assembly is also included, the gas fire extinguishing assembly includes a fire extinguishing device and a second bellows, the fire extinguishing device is connected and fixed to the main body of the switch cabinet, and one end of the second bellows communicates with the fire extinguishing device , the other end of the second bellows is fixedly connected to the slider, and when the temperature sensor detects that the temperature of the feeder switch is higher than the reference temperature, the fire extinguishing device is controlled to spray carbon dioxide to the corresponding area.

By adopting the above technical solution, the fire extinguishing device cooperates with the second bellows and the slider to inject carbon dioxide to the feeder switch in the fire area, reducing the probability of fire due to overload of the feeder switch.

Optionally, the slider is provided with an embedding hole, and the number of the embedding holes is set to two, and the two embedding holes are provided for the ends of the first bellows and the second bellows respectively. Removable docking.

By adopting the above technical solution, the first corrugated pipe and the second corrugated pipe are plugged into the embedding holes to achieve detachable connection, and the disassembly and installation method is simple, which helps to improve the stability of the first corrugated pipe and the second corrugated pipe. Installation efficiency.

Optionally, the outer wall of the main body of the switch cabinet is fixed with an abutment block, and the abutment block is provided with an embedding groove, and a filter plate is inserted into the embedding groove, and the filter plate is covered by the The opening of the air outlet is used to filter foreign matter from entering the installation cavity.

By adopting the above technical scheme, when the filter plate covers the air outlet, it can filter foreign matter, reduce the probability of foreign matter entering the interior and cause poor contact, and at the same time, the filter plate and the embedded groove can be plugged, which is convenient for the filter plate to be installed. Disassemble for cleaning.

Optionally, the side wall of the filter plate facing the main body of the switch cabinet is fixed with an elastic abutment piece, and when the filter plate is inserted into the embedding groove, the elastic abutment piece and the switch cabinet body The side walls of the main body are pressed against each other.

By adopting the above technical solution, the elastic abutting piece increases the friction between the filter plate and the main body of the switch cabinet when the filter plate is inserted into the embedded groove, so that relative sliding between the filter plate and the main body of the switch cabinet is not easy to occur, and the safety of the filter plate is improved. The stability of the cover to the air outlet.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The temperature sensor detects the temperature of the feeder switch in different areas. When the feeder switch in the corresponding area is overloaded and the temperature is too high, the blower device is controlled to blow air towards the corresponding area to improve the heat dissipation effect of the feeder switch in the corresponding area. Make the feeder switch less prone to aging due to overheating and prolong the service life;

2. The fire extinguishing device cooperates with the second bellows and the slider to inject carbon dioxide to the feeder switch in the fire area to reduce the probability of fire due to overload of the feeder switch;

3. The elastic abutting piece increases the friction between the filter plate and the main body of the switch cabinet when the filter plate is inserted into the embedded groove, making it difficult for relative sliding to occur between the filter plate and the main body of the switch cabinet, and improving the air outlet hole of the filter plate. closure stability.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a rail transit power supply switchgear in the present application.

Fig. 2 is a partial installation structure diagram of the main body of the switchgear and the filter plate in this application.

Fig. 3 is a partial structural schematic diagram of the main body of the switchgear, the lifting assembly, and the feeder switch in the present application.

Fig. 4 is a partially exploded view of the sliding rail and the slider in the present application.

Fig. 5 is a partial side exploded view of the sliding rail and the slider in the present application.

Fig. 6 is a sectional view taken along the direction A-A in Fig. 3 .

Fig. 7 is a partial installation structure diagram of the filter plate and the main body of the switch cabinet in this application.

Fig. 8 is a partial exploded view of the filter plate and the main body of the switchgear in the present application.

Explanation of reference signs: 1. Main body of the switchgear; 11. Installation cavity; 12. Air outlet; 13. Partition plate; 131. Relief hole; 2. Temperature sensor; 3. Blowing device; 31. Driving fan; 32 , first bellows; 4, feeder switch; 5, lifting assembly; 51, sliding rail; 511, transmission groove; 512, meshing teeth; 52, slider; 521, embedded chute; 522, embedded hole; 53. Limiting block; 54. Servo motor; 55. Transmission gear; 6. Gas fire extinguishing assembly; 61. Fire extinguishing device; 62. Second bellows; 7. Abutment block; 71. Embedded groove; 8. Filter plate ; 81, filter hole; 82, elastic abutment piece.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-8. In this embodiment, the direction indicated by the coordinate axis z-axis in the figure is up, the direction opposite to the z-axis is down, the direction pointed by the x-axis is left, the direction opposite to the x-axis is right, and the direction indicated by the y-axis is The direction is front, and the direction opposite to the y-axis is back.

The embodiment of the present application discloses a rail transit power supply switchgear. Referring to Fig. 1 and Fig. 2, the rail transit power supply switchgear includes a switchgear main body 1, a temperature sensor 2 and a blower 3, and the front side wall of the switchgear is provided with an installation cavity 11, and a feeder switch 4 is fixedly installed in the installation cavity 11. The inner wall of the rear side of the front is provided with an air outlet hole 12, and the air outlet hole 12 is connected to the outside to dissipate heat. There are multiple temperature sensors 2, and multiple temperature sensors 2 are connected to the inner wall of the installation cavity 11. Fixed, and arranged at equal intervals along the vertical direction, the temperature sensor 2 is used to detect the temperature of the feeder switch 4 in the area corresponding to different heights, and the blowing device 3 is slidingly connected in the installation cavity 11. When the detected temperature is higher than the preset When setting the numerical value, control the blowing device 3 to carry out blowing to the relevant area to realize the heat dissipation of the feeder switch 4 in the overheated area, and reduce the aging of the feeder switch 4 when working in an overheated state to prolong the service life.

Referring to Figures 2-4, the inner wall of the installation cavity 11 is fixed with a partition plate 13, which divides the installation cavity 11 into upper and lower parts, and the upper surface of the partition plate 13 near the left side is provided with a relief hole 131. The relief hole 131 runs through the upper and lower surfaces of the partition plate 13, and the right side wall of the installation cavity 11 is fixed with a lifting assembly 5, the lifting assembly 5 includes a sliding rail 51 and a slider 52, and the sliding rail 51 extends vertically. , the relief hole 131 is used for the sliding rail 51 to pass through, the left side wall of the slider 52 is provided with an embedded chute 521, the front and rear side walls of the sliding rail 51 are fixedly connected with the limit block 53, and the sliding rail 51 is inserted into the embedded When setting in the chute 521, the limit block 53 is abutted against the front and rear inner walls of the embedded chute 521, so that the inner wall of the embedded chute 521 and the limit block 53 form a mutual limit in the left and right horizontal directions, thereby sliding When the block 52 and the sliding rail 51 slide relative to each other, it is not easy to be separated.

Referring to Fig. 4 and Fig. 5, the bottom of the chute 521 is embedded with a servo motor 54, and the servo motor 54 is connected to the temperature sensor 2 to receive the servo control signal. The output shaft of the servo motor 54 extends toward the left side. , the output shaft of the servo motor 54 is fixedly connected with a transmission gear 55, the right side wall of the sliding rail 51 is provided with a transmission groove 511, the inner wall of the transmission groove 511 is fixedly provided with meshing teeth 512, and the meshing teeth 512 and the transmission gear 55 form a meshing transmission . When the temperature sensor 2 detects that the temperature in the corresponding area is too high, the servo motor 54 is controlled to rotate accordingly to drive the slide block 52 to slide to the side adjacent to the overheated area, and the blowing device 3 blows and dissipates heat to the overheated area. A control chip is connected between the temperature sensor 2 and the servo motor 54 to realize the rotation control of the servo motor 54. It is a prior art in the art to control the rotation of the servo motor 54 through the control chip, so it will not be described in detail in this embodiment. .

Referring to Fig. 1 and Fig. 5-6, blowing device 3 comprises drive fan 31 and first corrugated pipe 32, and drive fan 31 is fixedly connected to the rear side wall of blowing device 3, and one end of first bellows 32 is connected with the outlet of drive fan 31. The tuyere forms a sealed connection, and the other end of the first bellows 32 is connected and fixed to the slider 52. When the slider 52 moves inward, it drives the end of the first bellows 32 to move synchronously.

Referring to Fig. 6, the switchgear main body 1 is also provided with a gas fire extinguishing assembly 6, the gas fire extinguishing assembly 6 includes a fire extinguishing device 61 and a second bellows 62, the fire extinguishing device 61 is a small carbon dioxide fire extinguisher, and the fire extinguishing device 61 is arranged on the switch cabinet main body On the rear side wall, one end of the second bellows 62 is airtightly connected with the fire extinguishing device 61 , and the other end of the second bellows 62 is connected and fixed with the slider 52 .

5 and 6, in order to facilitate the connection and installation of the first bellows 32, the second bellows 62 and the slider 52, the rear side wall of the slider 52 is provided with an embedding hole 522, and the embedding hole 522 is bent to the right Opened on the side, the embedding hole 522 connects the rear side wall and the right side wall of the slider 52, the number of the embedding hole 522 is set to two, and the two embedding holes 522 are respectively provided for the first bellows 32 and the second bellows. 62, the ends of the first corrugated tube 32 and the second corrugated tube 62 protrude from the right side of the slider 52 and extend toward the feeder switch 4 .

7 and 8, the rear side of the switchgear main body 1 is fixedly connected with the abutment block 7, the abutment block 7 is provided with an embedding groove 71, and the notch of the embedding groove 71 is opened toward the upper side, and the embedding groove 71 A filter plate 8 is embedded, and the filter plate 8 opens and closes the air outlet hole 12. The filter plate 8 is provided with a plurality of filter holes 81, and the filter holes 81 run through the front and rear side walls of the filter plate 8, and the adjacent holes are arranged at intervals , so that the filter plate 8 can filter foreign objects entering the air outlet 12 and at the same time realize heat dissipation.

Referring to Fig. 8, the front side wall of the filter plate 8 near the upper side is fixed with an elastic abutment piece 82, the elastic abutment piece 82 has elastic deformation ability, when the filter plate 8 is inserted into the embedding groove 71, the elastic abutment piece 82 Squeeze with the rear side wall of the switchgear main body 1 to increase the friction between the filter plate 8 and the switchgear main body 1, so that the filter plate 8 can keep blocking and filtering the air outlet 12 under non-human movement.

The implementation principle of a rail transit power supply switchgear in the embodiment of the present application is as follows: by installing temperature sensors 2 on adjacent sides of a plurality of corresponding feeder switch 4 areas, when the feeder switch 4 in the corresponding area is overloaded and the temperature rises rapidly, the servo The motor 54 drives the slider 52 to move to the side adjacent to the overheated area, drives the fan 31 to transfer the flowing gas to the overheated area through the first bellows 32, and speeds up the heat dissipation rate, so that the feeder switch 4 is not easy to be damaged due to working at an overheated temperature. Aging, to achieve the extension of service life.

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims (8)

1. The utility model provides a rail transit power supply cubical switchboard which characterized in that: comprising the following steps:

the switch cabinet comprises a switch cabinet main body (1), wherein a mounting cavity (11) is formed for mounting a feeder switch (4), an air outlet hole (12) is formed in the inner wall of the mounting cavity (11), and the air outlet hole (12) penetrates through the mounting cavity (11) to be communicated with the outside air;

the temperature sensors (2) are arranged in a plurality, and the temperature sensors (2) are arranged in the mounting cavity (11) at intervals and are used for detecting the temperature of the feeder switch (4) in the corresponding area;

and the blowing device (3) slides on the inner wall of the mounting cavity (11), and when the temperature sensor (2) detects that the temperature of the feeder switch (4) in the corresponding area is too high, the blowing device (3) is controlled to blow towards the corresponding area.

2. A rail transit power supply switchgear as claimed in claim 1, wherein: the novel air conditioner is characterized by further comprising a lifting assembly (5), wherein the lifting assembly (5) comprises a sliding rail (51) and a sliding block (52), the sliding block (52) is in meshed transmission with the sliding rail (51), and the sliding block (52) is connected with the air blowing device (3) and used for driving the air blowing device (3) to move to a region with an excessively high corresponding temperature for blowing.

3. A rail transit power supply switchgear as claimed in claim 2, wherein: the sliding block (52) is fixedly provided with an embedded sliding groove (521) towards the side wall of the sliding rail (51), the embedded sliding groove (521) is used for embedding and sliding the sliding rail (51), the sliding block (52) is provided with a servo motor (54), and the servo motor (54) is in transmission connection with the sliding rail (51).

4. A rail transit power supply switchgear as claimed in claim 2, wherein: the blowing device (3) comprises a driving fan (31) and a first corrugated pipe (32), one end of the first corrugated pipe (32) is communicated with the driving fan (31), and the other end of the first corrugated pipe (32) is detachably connected with the sliding block (52).

5. A rail transit power supply switchgear as claimed in claim 4, wherein: still include gaseous fire extinguishing components (6), gaseous fire extinguishing components (6) include extinguishing device (61) and second bellows (62), extinguishing device (61) with cubical switchboard main part (1) are connected fixedly, second bellows (62) one end with extinguishing device (61) intercommunication, second bellows (62) other end with slider (52) fixed connection, work as when temperature sensor (2) detects feeder switch (4) temperature and is greater than reference temperature, control extinguishing device (61) are to corresponding regional blowout carbon dioxide.

6. A rail transit power supply switchgear as claimed in claim 5, wherein: the slider (52) is provided with embedded holes (522), two embedded holes (522) are arranged, and the two embedded holes (522) are respectively used for detachably inserting the ends of the first corrugated pipe (32) and the second corrugated pipe (62).

7. The rail transit power supply switchgear of claim 6, wherein: the switch cabinet is characterized in that an abutting block (7) is fixedly arranged on the outer side wall of the switch cabinet body (1), an embedded groove (71) is formed in the abutting block (7), a filter plate (8) is inserted into the embedded groove (71), the filter plate (8) covers the opening of the air outlet hole (12) and is used for filtering foreign matters to enter the installation cavity (11).

8. The rail transit power supply switchgear of claim 7 wherein: the filter (8) is fixedly provided with an elastic supporting piece (82) towards the side wall of the switch cabinet main body (1), and when the filter (8) is inserted into the embedded groove (71), the elastic supporting piece (82) and the side wall of the switch cabinet main body (1) are mutually extruded.

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