Combined train air conditioning unit control cabinet

Abstract

The utility model relates to a combined train air conditioning unit control cabinet which comprises a cabinet body, the interior of the cabinet body is divided into an upper chamber and a lower chamber, the front faces of the upper chamber and the lower chamber are open and hinged to sealing doors respectively, ventilation openings A are evenly formed in the sealing door of the lower chamber, and a filtering assembly is detachably connected into the lower chamber. A pair of slideways which are in bilateral symmetry and in the front-back direction is arranged in the lower chamber and located behind the filtering assembly, a drying assembly is slidably connected to the slideways, a plurality of ventilation openings B leading to the lower chamber are evenly formed in the bottom of the upper chamber, and when the drying assembly is pushed to the rearmost ends of the slideways, the ventilation openings B communicate with an air outlet of the drying assembly, and fans are arranged on the ventilation openings B. A ventilation opening C leading to the upper chamber is formed in the top of the cabinet body, a plurality of temperature sensors are evenly arranged on the side wall in the upper chamber from bottom to top, the fans are equally divided into a plurality of groups, and the fans in the same group are electrically connected with the same temperature sensor. The utility model has the advantages of fast heat dissipation speed, flexible temperature control, small interference to electrical equipment, and convenient maintenance.

Description

Technical Field

[0001] This utility model relates to the field of control cabinet technology, specifically to a combined train air conditioning unit control cabinet. Background Technology

[0002] A control cabinet is a device that assembles switching equipment, measuring instruments, protective electrical appliances, and auxiliary equipment in a closed or semi-closed metal cabinet or panel according to electrical wiring requirements. The electrical equipment inside the control cabinet generates a lot of heat when it is running continuously. Traditional control cabinets generally use a ventilation port structure to promote heat dissipation through natural air exchange with the outside. However, due to the slow ventilation speed, there is a risk that the heat dissipation speed cannot offset the heat generation speed of the electrical equipment. In addition, the outside air carries certain impurities and moisture. When impurities and moisture mix into the cabinet and accumulate, they will adversely affect the normal operation of the electrical equipment. Utility Model Content

[0003] The purpose of this utility model is to provide a combined train air conditioning unit control cabinet, which has the advantages of fast heat dissipation, flexible temperature control, minimal interference with electrical equipment, and convenient maintenance.

[0004] The technical solution of this utility model is as follows:

[0005] A modular train air conditioning unit control cabinet includes a cabinet body. The internal space of the cabinet body is divided into an upper chamber and a lower chamber. The upper chamber is equipped with a mounting frame on which electrical equipment is mounted. The front of the upper and lower chambers are open and each is hinged with a sealed door. The sealed door of the lower chamber has a plurality of air vents A evenly distributed. A filter assembly is detachably connected to the lower chamber. Behind the filter assembly in the lower chamber, there is a pair of left-right symmetrical slide rails along the front-back direction. A drying assembly is slidably connected to the slide rails. The bottom of the upper chamber has a plurality of air vents B evenly distributed, leading to the lower chamber. When the drying assembly is pushed to the last end of the slide rail, the air vents B are connected to the air outlet of the drying assembly. A fan blowing air into the upper chamber is provided on the air vents B. The top of the cabinet body has an air vent C leading to the upper chamber. A filter screen is provided on the air vent C. A plurality of temperature sensors are evenly distributed from bottom to top on the side wall of the upper chamber. The fans are divided into several groups, and the fans in the same group are electrically connected to the same temperature sensor.

[0006] Preferably, the drying assembly includes a drawer, vertical plates, and horizontal plates. The lower chamber is provided with a drawer, and each of the left and right sides of the drawer is provided with a slide groove that is slidably connected to a slide rail. The drawer is provided with several vertical plates along the front-to-back direction. The vertical plates divide the space inside the drawer into a transition groove corresponding to the vent B and a placement groove located on the left and right sides of the transition chamber. Several horizontal plates are evenly arranged in the placement groove. The groove of the placement groove is divided into several placement areas by the horizontal plates. The placement areas are filled with desiccant bags. The placement areas are provided with a vent surface A leading to the interior space of the lower chamber and a vent surface B leading to the transition groove. When the drawer is pushed to the last end of the slide rail, the upper opening of the transition groove is aligned with the corresponding vent B. The upper opening of the placement area is sealed by the top wall of the lower chamber. The fans on each vent B aligned with the same transition groove are the same set of fans.

[0007] Preferably, the bottom shape of the placement area is an inclined surface sloping downwards towards the adjacent transition groove, and the vent surface A is provided on the bottom of the placement area.

[0008] Preferably, the filter assembly includes a frame and a filter screen. The shape of the frame is similar to the cross-sectional shape of the lower chamber. The frame is provided with a filter screen and a threaded through hole A. The lower chamber is provided with a fixing block. The front of the fixing block abuts against the back of the frame. The fixing block is provided with a threaded through hole B corresponding to the threaded through hole A. The frame and the fixing block are connected by screwing in fixing screws into the overlapping threaded through holes A and B.

[0009] Preferably, the frame is provided with a rubber sealing strip along its outer edge, and the rubber sealing strip abuts against the lower inner wall.

[0010] Preferably, the number of temperature sensors is 3.

[0011] The beneficial technical effects of this utility model are as follows:

[0012] 1. By using vents A, B, and C in combination with fans, the air exchange rate between the upper chamber and the outside of the cabinet is accelerated, thereby quickly dissipating the heat generated by the operation of electrical equipment to the outside. Temperature sensors monitor the temperature at different heights inside the upper chamber in real time. When the temperature at the location of the temperature sensor exceeds the preset maximum safe temperature, the fans in the same group that receive the control signal start, pushing the outside cool air through the lower chamber into the upper chamber to accelerate the heat dissipation. The more locations with excessively high temperatures, the more fans are activated, the faster the air exchange rate between the upper chamber and the outside, the higher the heat dissipation efficiency, and the more flexible the temperature control.

[0013] 2. The lower chamber is equipped with a front filter assembly and a rear drying assembly. Through the combined use of the filter assembly and the drying assembly, the cold air from the outside is filtered and dried before entering the upper chamber, reducing the possibility of impurities and moisture in the cold air from the outside entering the upper chamber and preventing electrical equipment from being interfered with by impurities and moisture.

[0014] 3. The filter assembly is detachably connected to the lower chamber and can be removed from the lower chamber. The drying assembly slides on the front-to-back slide and can be pulled from the lower chamber to the outside, making it convenient for staff to clean and maintain. Attached Figure Description

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0016] Appendix Figure 1 This is the front view of the present invention.

[0017] Appendix Figure 2 This is a front view of the present invention when the sealing door is removed.

[0018] Appendix Figure 3 This is a top-view cross-sectional view of the upper chamber of this utility model.

[0019] Appendix Figure 4 This is a top-view cross-sectional view of the lower chamber of this utility model. No desiccant bag is placed in the placement area shown in the figure.

[0020] Appendix Figure 5 This is a front-view cross-sectional view of the lower chamber of this utility model. No desiccant bag is placed in the placement area shown in the figure.

[0021] In the diagram: 1-Cabinet, 2-Upper chamber, 3-Lower chamber, 4-Mounting rack, 5-Electrical equipment, 6-Sealed door, 7-Ventilator A, 8-Filter assembly, 9-Slide rail, 10-Drying assembly, 11-Ventilator B, 12-Fan, 13-Ventilator C, 14-Filter screen, 15-Temperature sensor, 16-Drawer, 17-Vertical plate, 18-Horizontal plate, 19-Slide rail, 20-Transition groove, 21-Placement groove, 22-Placement area, 23-Ventilator surface A, 24-Ventilator surface B, 25-Frame, 26-Filter screen, 27-Threaded through hole A, 28-Fixing block, 29-Threaded through hole B, 30-Fixing screw, 31-Rubber sealing strip. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Example:

[0024] like Figures 1 to 5As shown, this embodiment provides a combined train air conditioning unit control cabinet, including a cabinet 1. The internal space of the cabinet 1 is divided into an upper chamber 2 and a lower chamber 3. The upper chamber 2 is provided with a mounting bracket 4, on which electrical equipment 5 is mounted. The front of the upper chamber 2 and the lower chamber 3 are open and each is hinged with a sealing door 6. The sealing door 6 of the lower chamber 3 is provided with several air vents A7 evenly distributed. A filter assembly 8 is detachably connected in the lower chamber 3. Behind the filter assembly 8 in the lower chamber 3, there is a pair of left-right symmetrical slide rails 9 along the front-back direction. A drying unit is slidably connected on the slide rails 9. The upper chamber 2 has several vents B11 evenly distributed at the bottom, leading to the lower chamber 3. When the drying assembly 10 is pushed to the last end of the slide 9, the vents B11 are connected to the air outlet of the drying assembly 10. The vents B11 are equipped with fans 12 that blow air into the upper chamber 2. The top of the cabinet 1 has a vent C13 that leads to the upper chamber 2. The vent C13 is equipped with a filter screen 14. Several temperature sensors 15 are evenly distributed from bottom to top on the side wall inside the upper chamber 2. The fans 12 are divided into several groups, and the fans 12 in the same group are electrically connected to the same temperature sensor 15.

[0025] By using vents A7, B11, and C13 in combination with fan 12, the air exchange rate between the upper chamber 2 and the cabinet 1 is accelerated, thus quickly dissipating the heat generated by the electrical equipment 5 to the outside. Temperature sensor 15 monitors the temperature at different heights within the upper chamber 2 in real time. When the temperature at the location of temperature sensor 15 exceeds the preset maximum safe temperature, the fan 12 in the same group, receiving a control signal, starts, pushing outside cold air through the lower chamber 3 into the upper chamber 2, accelerating heat dissipation. The more locations with excessively high temperatures, the more fans 12 are activated, resulting in faster air exchange between the upper chamber 2 and the outside, higher heat dissipation efficiency, and flexible temperature control. The lower chamber 3 contains a front filter assembly 8 and a rear drying assembly 10. The combined use of the filter assembly 8 and the drying assembly 10 ensures that outside cold air is filtered and dried before entering the upper chamber 2, reducing the possibility of impurities and moisture in the outside cold air entering the upper chamber 2 and preventing interference from impurities and moisture to the electrical equipment 5. The filter assembly 8 is detachably connected to the lower chamber 3 and can be removed from the lower chamber 3. The drying assembly 10 slides on the slide 9 in the front-to-back direction and can be pulled from the inside of the lower chamber 3 to the outside, making it convenient for staff to clean and maintain.

[0026] Furthermore, the drying assembly 10 includes a drawer 16, vertical plates 17, and horizontal plates 18. The lower chamber 3 contains the drawer 16, with sliding grooves 19 on both the left and right sides of the drawer 16 that slidably connect with the slide rails 9. The drawer 16 contains several vertical plates 17 running in the front-to-back direction, dividing the space inside the drawer 16 into transition grooves 20 corresponding to the air vents B11 and placement grooves 21 located on the left and right sides of the transition chamber. Several horizontal plates 18 are evenly arranged in the placement grooves 21, and the groove positions of the placement grooves 21 are determined by the horizontal plates 18, etc. The drawer is divided into several placement areas 22, each filled with desiccant bags. Each placement area 22 has a vent surface A23 leading to the interior space of the lower chamber 3 and a vent surface B24 leading to the transition groove 20. When the drawer 16 is pushed to the last end of the slide rail 9, the upper opening of the transition groove 20 is connected to the corresponding vent B11. The upper opening of the placement area 22 is sealed by the top wall inside the lower chamber 3. The fans 12 on each vent B11 connected to the same transition groove 20 are the same group of fans 12.

[0027] When drawer 16 is in place at the rear end of slide 9, transition groove 20 aligns with vent B11. The upper opening of placement area 22 is sealed by the top wall inside lower chamber 3. At this time, vent B11 is blocked by filter assembly 8. Cold air inside lower chamber 3 needs to pass through filter assembly 8 before entering vent B11. When fan 12 of vent B11 starts, cold air inside lower chamber 3 enters placement area 22 through vent A23. As it passes through placement area 22, moisture is absorbed by the desiccant bag, completing the drying process. Then, the cold air enters transition groove 20 through vent B24 and finally enters upper chamber 2 through vent B11. The horizontal plate 18 divides placement groove 21 into several placement areas 22, facilitating the proper placement of desiccant bags. Specifically, the number of desiccant bags in each placement area 22 should not be excessive to avoid the bags being compacted and obstructing the passage of cold air.

[0028] Furthermore, the bottom of the placement area 22 is a sloped surface that slopes downward toward the adjacent transition groove 20, and the vent surface A23 is provided on the bottom of the placement area 22.

[0029] The bottom shape of the transition groove 20 is changed to a downward slope to reduce the volume of the placement area 22 and reduce the amount of desiccant bag used.

[0030] Furthermore, the filter assembly 8 includes a frame 25 and a filter screen 26. The shape of the frame 25 is similar to the cross-sectional shape of the lower chamber 3. The filter screen 26 is provided on the frame 25. The frame 25 is provided with a threaded through hole A27. A fixing block 28 is provided inside the lower chamber 3. The front of the fixing block 28 abuts against the back of the frame 25. The fixing block 28 is provided with a threaded through hole B29 corresponding to the threaded through hole A27. The frame 25 and the fixing block 28 are connected by screwing a fixing screw 30 into the overlapping threaded through holes A27 and B29.

[0031] The fixing block 28 facilitates quick positioning of the frame 25. The frame 25 and the fixing block 28 are connected by fixing screws 30, which simplifies the assembly and disassembly of the frame 25 and improves maintenance efficiency.

[0032] Furthermore, the frame 25 is provided with a rubber sealing strip 31 along its outer edge, and the rubber sealing strip 31 abuts against the inner wall of the lower chamber 3.

[0033] By sealing the gap between the outer edge of the frame 25 and the inner wall of the lower chamber 3 with the rubber sealing strip 31, cold air from the outside is prevented from passing through the gap and bypassing the filter screen 26, thereby improving the filtration effect of the filter screen 26.

[0034] Furthermore, the number of temperature sensors 15 is 3.

[0035] Working principle and usage process of this utility model:

[0036] When the control cabinet is in use, both sealed doors 6 are closed, and the electrical equipment 5 on the mounting bracket 4 operates normally and continuously generates heat. When the temperature measured by the temperature sensor 15 exceeds the preset maximum safe temperature, the temperature sensor 15 starts the fan 12 connected to it. The started fan 12 accelerates the flow of cold air from the lower chamber 3 into the upper chamber 2 through the vent B11, while the hot air in the upper chamber 2 is discharged to the outside through the vent C13. Cold air from the outside is then supplied to the lower chamber 3 through the vent A7. Through air exchange, the heat in the upper chamber 2 is dissipated to the outside, preventing the temperature from becoming too high and affecting the normal operation of the electrical equipment 5. When the temperature measured by the temperature sensor 15 is lower than the preset minimum safe temperature, the temperature sensor 15 shuts down the fan 12 connected to it.

[0037] When cold air enters the lower chamber 3, it needs to pass through the vent A7. At this time, larger impurities are blocked outside. When the cold air continues to move forward and passes through the filter assembly 8, smaller impurities are blocked by the filter screen 26. When the cold air passes through the filter assembly 8 and moves to the drying assembly 10, it needs to pass through the placement area 22 containing the desiccant bag. At this time, the moisture in the cold air is absorbed by the desiccant bag. Finally, the cold air that passes through the drying assembly 10 and enters the upper chamber 2 through the vent B11 has completed the filtration and drying process, reducing the possibility of impurities and moisture entering the upper chamber 2 through air exchange, and avoiding interference from impurities and moisture to the electrical equipment 5.

[0038] During maintenance, the staff first opens the sealed door 6 of the lower chamber 3, then unscrews the fixing screws 30 and removes the frame 25. The frame 25 and the connected filter screen 26 are then cleaned. Next, the drawer 16 is pulled out from the lower chamber 3, the expired desiccant bag is removed from the storage area 22 and replaced with a new desiccant bag. After that, the drawer 16 is returned to its original position, the cleaned and dried frame 25 is reinstalled and the fixing screws 30 are screwed on, and finally the sealed door 6 of the lower chamber 3 is closed.

[0039] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A combined train air conditioning unit control cabinet, characterized in that: The system includes a cabinet, the interior of which is divided into an upper chamber and a lower chamber. The upper chamber has a mounting frame on which electrical equipment is mounted. Both the upper and lower chambers are open at the front and each has a hinged, sealed door. The sealed door of the lower chamber has several evenly spaced air vents A. A filter assembly is detachably connected to the lower chamber. Behind the filter assembly, the lower chamber has a pair of symmetrical, front-to-back sliding tracks. A drying assembly is slidably connected to these tracks. The bottom of the upper chamber has several evenly spaced air vents B leading to the lower chamber. When the drying assembly is pushed to the end of the track, the air vents B connect to the air outlet of the drying assembly. Each air vent B has a fan blowing air into the upper chamber. The top of the cabinet has an air vent C leading to the upper chamber, and air vent C has a filter screen. Several temperature sensors are evenly spaced from bottom to top on the side walls of the upper chamber. The fans are divided into several groups, with each group of fans electrically connected to the same temperature sensor.

2. The combined train air conditioning unit control cabinet according to claim 1, characterized in that: The drying assembly includes a drawer, vertical plates, and horizontal plates. The lower chamber has a drawer, and each of the left and right sides of the drawer has a sliding groove that slides along a slide rail. The drawer has several vertical plates running in the front-to-back direction. The vertical plates divide the space inside the drawer into a transition groove corresponding to the vent B and a placement groove located on the left and right sides of the transition chamber. Several horizontal plates are evenly arranged in the placement groove, and the groove is divided into several placement areas by the horizontal plates. The placement areas are filled with desiccant bags. The placement areas have a vent surface A leading to the interior space of the lower chamber and a vent surface B leading to the transition groove. When the drawer is pushed to the last end of the slide rail, the upper opening of the transition groove is aligned with the corresponding vent B. The upper opening of the placement area is sealed by the top wall of the lower chamber. The fans on each vent B aligned with the same transition groove are the same set of fans.

3. The combined train air conditioning unit control cabinet according to claim 2, characterized in that: The bottom of the placement area is a sloping surface that slopes downward toward the adjacent transition groove, and the vent surface A is located on the bottom of the placement area.

4. The combined train air conditioning unit control cabinet according to claim 1, characterized in that: The filter assembly includes a frame and a filter screen. The shape of the frame is similar to the cross-sectional shape of the lower chamber. The frame is provided with a filter screen and a threaded through hole A. The lower chamber is provided with a fixing block. The front of the fixing block abuts against the back of the frame. The fixing block is provided with a threaded through hole B corresponding to the threaded through hole A. The frame and the fixing block are connected by screwing in fixing screws into the overlapping threaded through holes A and B.

5. A combined train air conditioning unit control cabinet according to claim 4, characterized in that: The frame is provided with a rubber sealing strip along its outer edge, and the rubber sealing strip abuts against the lower inner wall.

6. The combined train air conditioning unit control cabinet according to claim 1, characterized in that: The number of temperature sensors is 3.

Images