Protective high-voltage power supply and distribution system

Abstract

The invention discloses a protective high-voltage power supply and distribution system which comprises a power distribution cabinet, an air inlet hole and an air outlet hole are formed in the two sides of one side of the power distribution cabinet correspondingly, mounting frames are mounted at the air inlet hole and the air outlet hole correspondingly, an air inlet fan and an air outlet fan are mounted in the mounting frames correspondingly, and a dustproof net is mounted on one side of each mounting frame; the air inlet fan and the exhaust fan are each provided with a cleaning brush, and the lower end of the dustproof net is provided with a dust collecting structure. An exhaust hood is arranged on one side of the air inlet hole, a flow guide plate is arranged in the exhaust hood, and a plurality of conical holes are formed in one side of the exhaust hood; a protection structure is arranged at the upper end of the power distribution cabinet, a buffer structure is arranged at the lower end of the power distribution cabinet, a drying structure is arranged in the power distribution cabinet, and a temperature and humidity sensor is installed in the power distribution cabinet; dust attached to the dustproof net can be removed, the heat dissipation effect of the air inlet fan is kept, air blown into the exhaust hood can be diffused, and the heat dissipation range and effect are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine safety, in particular to a protective high-voltage power supply and distribution system. Background Art

[0002] The working environment of coal mines is characterized by high humidity and dust concentration. These environmental factors pose a severe test to electrical equipment. Ordinary electrical equipment is prone to failure or damage in such an environment. Therefore, coal mines need to use electrical equipment with stronger protection capabilities to ensure that it can operate stably in harsh working environments.

[0003] In high-voltage power supply and distribution equipment, due to large current and high voltage, electrical energy will be converted into heat energy, causing the conductor temperature to rise. If the heat cannot be dissipated in time, it will accumulate inside the equipment, causing the equipment to overheat. Overheating may also cause equipment deformation, melting, and even cause fire and other serious consequences.

[0004] Existing high-voltage power supply and distribution equipment adopts natural heat dissipation, air cooling and liquid cooling, among which the heat dissipation area of ​​air cooling is usually limited by the size of the fan and the internal space of the distribution cabinet. In high-voltage power supply and distribution equipment, due to space limitations and electrical safety requirements, the size and number of fans may be strictly limited, thus affecting the heat dissipation area and heat dissipation efficiency. In addition, there is a lot of dust in coal mines, and the filter at the heat dissipation hole will be attached with dust after long-term use, causing the filter to be blocked, thereby affecting the heat dissipation effect of the high-voltage power supply and distribution equipment. Summary of the invention

[0005] The object of the present invention is to provide a protective high-voltage power supply and distribution system to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a protective high-voltage power supply distribution system, comprising a power distribution cabinet, wherein air inlet holes and air exhaust holes are respectively provided on both sides of one side of the power distribution cabinet, installation frames are installed at the air inlet holes and the air exhaust holes, air inlet fans and air exhaust fans are respectively installed in the installation frames, dustproof nets are installed on one side of the installation frames, cleaning brushes are installed on the air inlet fans and the air exhaust fans, the cleaning brushes are in contact with the dustproof nets, and a dust collecting structure is installed at the lower end of the dustproof nets;

[0007] An exhaust hood is provided on one side of the air inlet, a guide plate is provided inside the exhaust hood, and a plurality of conical holes are opened on one side of the exhaust hood;

[0008] The upper end of the power distribution cabinet is provided with a protective structure, the lower end of the power distribution cabinet is provided with a buffer structure, a drying structure is provided inside the power distribution cabinet, and a temperature and humidity sensor is installed inside the power distribution cabinet.

[0009] Preferably, a rubber layer is provided on the outer side of the installation frame, and the rubber layer is connected in the air inlet holes and the exhaust holes.

[0010] Preferably, a first connecting rod is provided on one side of the cleaning brush, and an installation disk is provided at one end of the first connecting rod away from the cleaning brush. The installation disk is connected to the exhaust fan through a first installation bolt.

[0011] Preferably, a first connection groove for engaging the dust-proof net is formed on one side of the installation frame, and the dust-proof net is fixedly installed in the first connection groove through a plurality of second installation bolts.

[0012] Preferably, the dust collection structure includes a dust collection cover. A groove for connecting the dust collection cover is formed on the installation frame. Connecting blocks are provided on both sides of the dust collection cover, and second connection grooves for connecting the connecting blocks are formed on both sides of the groove. The dust collection cover is connected in the second connection groove through a clamping component.

[0013] Preferably, the clamping component includes an L-shaped block, a second connecting rod, and two meshing triangular blocks. The two meshing triangular blocks are respectively connected to the L-shaped block and one end of the second connecting rod. The L-shaped block and the second connecting rod are respectively connected to the dust collection cover and the installation frame.

[0014] Preferably, the protection structure includes a protection top, a first support rod, a second support rod, and a first buffer spring. One ends of the first support rod and the second support rod are respectively connected to the protection top and the power distribution cabinet. An installation groove is formed on the second support rod, and the first buffer spring is installed in the installation groove. The other end of the first buffer spring is connected to the end of the first support rod away from the protection top.

[0015] Preferably, the buffer structure includes a first connection frame, an arc-shaped spring piece, a support block, and a plurality of second buffer springs. The support block is slidably connected in the first connection frame. Both ends of the arc-shaped spring piece are connected to the support block. The arc-shaped end of the arc-shaped spring piece is connected to the power distribution cabinet. Both ends of the plurality of second buffer springs are respectively connected to the power distribution cabinet and the support block.

[0016] Preferably, the drying structure includes a drying net frame, a desiccant, and a second connection frame. The second connection frame is fixedly arranged in the power distribution cabinet. Clamping blocks are provided at both ends of the drying net frame. The clamping blocks are clamped in the second connection frame. The drying net frame is connected in the power distribution cabinet through a fixing component.

[0017] Preferably, the fixing component includes a U-shaped clamping piece, a return spring, and a pulling frame. The U-shaped clamping piece is connected to the drying net frame through the return spring. A clamping groove for clamping both ends of the U-shaped clamping piece is formed on the power distribution cabinet. The pulling frame is fixedly connected to the U-shaped clamping piece.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The dust attached to the dustproof net can be removed by setting a cleaning brush to maintain the heat dissipation effect in the distribution cabinet. The dust collection structure can be used to collect and process the cleaned dust. The guide plate in the exhaust hood can be used to diffuse the wind blown into the exhaust hood, thereby increasing the exhaust range and the heat dissipation range, thereby improving the heat dissipation effect.

[0020] 2. By setting up the protective structure, the upper end of the distribution cabinet can be protected. By setting up the buffer structure, it can be buffered when the distribution cabinet is impacted to protect the electrical components in the distribution cabinet and reduce damage. By setting up the drying structure, the distribution cabinet can be kept dry, reducing equipment corrosion and insulation performance degradation caused by excessive humidity, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure of the present invention Figure 1 ;

[0022] Figure 2 The structure of the present invention Figure 2 ;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 The present invention is cut away Figure 1 ;

[0025] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0026] Figure 6 The present invention is cut away Figure 2 ;

[0027] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0028] Figure 8 The present invention is cut away Figure 3 ;

[0029] Fig. 9 for Figure 8 Enlarged view of point D in the middle;

[0030] Fig.10 This is a material structure diagram of the power distribution cabinet of the present invention;

[0031] Fig.11 It is a system block diagram of the present invention.

[0032] In the figure: 1, power distribution cabinet; 2, air inlet hole; 3, air outlet hole; 4, installation frame; 5, air inlet fan; 6, air outlet fan; 7, dust-proof net; 8, cleaning brush; 9, air exhaust hood; 10, guide plate; 11, conical hole; 12, temperature and humidity sensor; 13, rubber layer; 14, first connecting rod; 15, mounting plate; 16, first mounting bolt; 17, first connecting groove; 18, second mounting bolt; 19, dust collection hood; 20, groove; 21, connecting block; 22, second connecting groove; 23, L-shaped block; 24, second connecting rod; 25, triangular block; 26, protective top; 27, first support rod; 28, second support rod; 29, first buffer spring; 30, mounting groove; 31, first connecting frame; 32, arc spring plate; 33, support block; 34, second buffer spring; 35, drying screen frame; 36, desiccant; 37, second connecting frame; 38, engaging block; 39, U-shaped clamping part; 40, return spring; 41, pulling frame; 42, engaging groove; 43, calcium silicate board; 44, epoxy zinc-rich primer layer; 45, polyurethane topcoat layer. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment 1:

[0035] Please refer to Figure 1-Figure 10 , the present invention provides a technical solution: a protective high-voltage power supply and distribution system, including a power distribution cabinet 1, with air inlet holes 2 and air outlet holes 3 respectively opened on both sides of one side of the power distribution cabinet 1. Installation frames 4 are installed at both the air inlet hole 2 and the air outlet hole 3. An air inlet fan 5 and an air outlet fan 6 are respectively installed in the installation frame 4. Dust-proof nets 7 are installed on one side of the installation frame 4. First connecting grooves 17 for the dust-proof nets 7 to be engaged are opened on one side of the installation frame 4. The dust-proof nets 7 are fixedly installed in the first connecting grooves 17 through a plurality of second mounting bolts 18. Cleaning brushes 8 are installed on both the air inlet fan 5 and the air outlet fan 6. The cleaning brushes 8 are in contact connection with the dust-proof nets 7. A dust collection structure is installed at the lower end of the dust-proof nets 7. A temperature and humidity sensor 12 is installed in the power distribution cabinet 1;

[0036] When the temperature and humidity sensor 12 detects that the temperature inside the power distribution cabinet 1 is relatively high, the air inlet fan 5 blows air into the power distribution cabinet 1, and the air outlet fan 6 blows out the gas inside the power distribution cabinet 1, so that the air inside the power distribution cabinet 1 circulates, thereby realizing the heat dissipation inside the power distribution cabinet 1;

[0037] When the distribution cabinet 1 is dissipating heat, the air intake fan 5 and the exhaust fan 6 can drive the cleaning brush 8 to rotate when rotating, thereby driving the cleaning brush 8 to clean the dust attached to the dustproof net 7 and maintain the heat dissipation effect in the distribution cabinet 1; when the dustproof net 7 is disassembled and replaced, the second mounting bolt 18 is removed, and then the dustproof net 7 is taken out from the first connecting groove 17, and then the new dustproof net 7 is engaged in the first connecting groove 17, and the second mounting bolt 18 is used to fix the dustproof net 7 in the first connecting groove 17.

[0038] Specifically, the ash collecting structure includes an ash collecting cover 19, a groove 20 for connecting the ash collecting cover 19 is opened on the installation frame 4, connecting blocks 21 are provided on both sides of the ash collecting cover 19, and second connecting grooves 22 for connecting the connecting blocks 21 are opened on both sides of the groove 20. The ash collecting cover 19 is connected to the second connecting groove 22 through a snap-fit ​​assembly, and the snap-fit ​​assembly includes an L-shaped block 23, a second connecting rod 24 and two meshing triangular blocks 25. The two meshing triangular blocks 25 are respectively connected to the L-shaped block 23 and one end of the second connecting rod 24, and the L-shaped block 23 and the second connecting rod 24 are respectively connected to the ash collecting cover 19 and the installation frame 4.

[0039] When the cleaning brush 8 cleans the dust attached to the dustproof net 7, the dust will fall into the dust collecting cover 19. When the dust collecting cover 19 is disassembled for cleaning, the L-shaped block 23 is moved to separate the meshing triangular blocks 25, and then the dust collecting cover 19 is pulled out from the groove 20. When the dust collecting cover 19 is installed, the dust collecting cover 19 is engaged in the groove 20, and the connecting block 21 is engaged in the second connecting groove 22. Then, the dust collecting cover 19 is pressed to engage the two triangular blocks 25, and the dust collecting cover 19 can be fixed in the groove 20.

[0040] A first connecting rod 14 is provided on one side of the cleaning brush 8, and a mounting plate 15 is provided on the end of the first connecting rod 14 away from the cleaning brush 8. The mounting plate 15 is connected to the exhaust fan 6 through a first mounting bolt 16. When the cleaning brush 8 needs to be replaced, the first mounting bolt 16 is removed to separate the mounting plate 15 from the air intake fan 5 and the exhaust fan 6. When the air intake fan 5 and the exhaust fan 6 rotate, the cleaning brush 8 can be mobilized to rotate through the mounting plate 15 and the first connecting rod 14.

[0041] A rubber layer 13 is provided on the outside of the mounting frame 4, and the rubber layer 13 is connected to the air inlet 2 and the air outlet 3. The rubber layer 13 can effectively absorb the vibration generated by the air inlet fan 5 and the air outlet fan 6 during operation, and can significantly reduce the noise caused by the vibration.

[0042] On one side of the air inlet hole 2, there is an exhaust hood 9. Inside the exhaust hood 9, there is a guide plate 10. On one side of the exhaust hood 9, there are several conical holes 11. Through the setting of the exhaust hood 9, the air inlet fan 5 blows air into the exhaust hood 9, and the guide plate 10 diffuses the air, which can improve the exhaust range. Through the setting of the several conical holes 11, the air blows from the end with a smaller diameter of the conical hole 11 to the end with a larger diameter, which can expand the blowing range and improve the heat dissipation range, thereby improving the heat dissipation effect;

[0043] At the upper end of the power distribution cabinet 1, there is a protection structure. The protection structure includes a protection top 26, a first support rod 27, a second support rod 28, and a first buffer spring 29. One ends of the first support rod 27 and the second support rod 28 are respectively connected to the protection top 26 and the power distribution cabinet 1. An installation groove 30 is provided on the second support rod 28, and the first buffer spring 29 is installed in the installation groove 30, and the other end of the first buffer spring 29 is connected to the end of the first support rod 27 away from the protection top 26;

[0044] When the upper part of the power distribution cabinet 1 is collided, the protection top 26 squeezes the first support rod 27, the first support rod 27 squeezes the first buffer spring 29, and the first buffer spring 29 releases elastic potential energy, which can buffer the protection top 26, thereby protecting the power distribution cabinet 1.

[0045] At the lower end of the power distribution cabinet 1, there is a buffer structure. The buffer structure includes a first connection frame 31, an arc spring sheet 32, a support block 33, and several second buffer springs 34. The support block 33 is slidably connected in the first connection frame 31. Both ends of the arc spring sheet 32 are connected to the support block 33, and the arc end of the arc spring sheet 32 is connected to the power distribution cabinet 1. Both ends of the several second buffer springs 34 are respectively connected to the power distribution cabinet 1 and the support block 33;

[0046] When the power distribution cabinet 1 is impacted, the power distribution cabinet 1 squeezes the arc spring sheet 32 and the second buffer springs 34. The arc spring sheet 32 and the second buffer springs 34 can weaken the impact on the power distribution cabinet 1, thereby buffering the power distribution cabinet 1 to protect the electrical components inside the power distribution cabinet 1 and reduce damage.

[0047] Inside the power distribution cabinet 1, there is a drying structure. The drying structure includes a drying mesh frame 35, a desiccant 36, and a second connection frame 37. The second connection frame 37 is fixedly arranged inside the power distribution cabinet 1. Both ends of the drying mesh frame 35 are provided with engaging blocks 38, and the engaging blocks 38 are engaged in the second connection frame 37. The drying mesh frame 35 is connected inside the power distribution cabinet 1 through a fixing component. The fixing component includes a U-shaped clamping piece 39, a return spring 40, and a pulling frame 41. The U-shaped clamping piece 39 is connected to the drying mesh frame 35 through the return spring 40. The power distribution cabinet 1 is provided with a clamping groove 42 for both ends of the U-shaped clamping piece 39 to be engaged, and the pulling frame 41 is fixedly connected to the U-shaped clamping piece 39.

[0048] The desiccant 36 can keep the inside of the power distribution cabinet 1 dry, reduce equipment corrosion and insulation performance degradation caused by excessive humidity, thereby extending the service life of the equipment; when the temperature and humidity sensor 12 detects that the humidity inside the power distribution cabinet 1 is high, the desiccant 36 needs to be replaced. When replacing the desiccant 36, first remove the drying mesh frame 35, pull the pull frame 41, and the two ends of the U-shaped clamping piece 39 are removed from the clamping groove 42. Then pull the drying mesh frame 35 to move the clamping block 38 out of the second connecting frame 37. Then replace the desiccant 36. Next, snap the clamping block 38 into the second connecting frame 37, pull the pull frame 41, push the drying mesh frame 35 to move and snap it into the second connecting frame 37. Then release the pull frame 41, and the return spring 40 releases its elastic potential energy, pulling the two ends of the U-shaped clamping piece 39 to be clamped in the clamping groove 42, and the drying mesh frame 35 can be fixed inside the power distribution cabinet 1.

[0049] The power distribution cabinet 1 is made of stainless steel, which can improve the corrosion resistance, easy cleaning and fire prevention effect of the power distribution cabinet 1. A calcium silicate board 43 is provided on the outside of the stainless steel cabinet, which can effectively prevent the influence of the high-temperature external environment on the internal temperature of the power distribution cabinet 1. An epoxy zinc-rich primer layer 44 is provided on the outside of the calcium silicate board 43, which plays an electrochemical protection role for the power distribution cabinet 1 and effectively prevents corrosion. A polyurethane topcoat layer 45 is provided on the outside of the epoxy zinc-rich primer layer 44, which can improve the weather resistance, chemical corrosion resistance and wear resistance of the power distribution cabinet 1.

[0050] Embodiment 2:

[0051] Please refer to Fig.11 , the difference between this Embodiment 2 and Embodiment 1 is that the protective high-voltage power supply and distribution system includes a controller module, a circuit breaker module, an ammeter and a dual-power conversion switch. The dual-power conversion switch is connected to external devices. The controller module is respectively connected to the temperature and humidity sensor 12, the intake fan 5, the exhaust fan 6 and the circuit breaker module. When the temperature and humidity sensor 12 detects that the temperature inside the power distribution cabinet 1 is high, the controller module controls the intake fan 5 and the exhaust fan 6 to operate to dissipate heat inside the power distribution cabinet 1. When a problem occurs in the circuit, the circuit breaker module detects an abnormality in the ammeter, and the controller module controls the dual-power conversion switch to cut off the power supply to improve the safety of the device.

Claims

1. Protective high voltage power supply and distribution system, characterized in that: include: A power distribution cabinet (1), wherein an air inlet (2) and an air outlet (3) are respectively provided on both sides of one side of the power distribution cabinet (1), an installation frame (4) is installed at the air inlet (2) and the air outlet (3), an air inlet fan (5) and an air outlet fan (6) are respectively installed in the installation frame (4), a dustproof net (7) is installed on one side of the installation frame (4), a cleaning brush (8) is installed on the air inlet fan (5) and the air outlet fan (6), the cleaning brush (8) is in contact with and connected to the dustproof net (7), and a dust collecting structure is installed at the lower end of the dustproof net (7); An exhaust hood (9) is provided on one side of the air inlet hole (2), a guide plate (10) is provided inside the exhaust hood (9), and a plurality of conical holes (11) are opened on one side of the exhaust hood (9); The upper end of the power distribution cabinet (1) is provided with a protective structure, the lower end of the power distribution cabinet (1) is provided with a buffer structure, a drying structure is provided inside the power distribution cabinet (1), and a temperature and humidity sensor (12) is installed inside the power distribution cabinet (1).

2. The protective high-voltage power supply and distribution system according to claim 1 is characterized in that: A rubber layer (13) is provided on the outside of the installation frame (4), and the rubber layer (13) is connected to the air inlet (2) and the air outlet (3).

3. The protective high-voltage power supply and distribution system according to claim 1 is characterized in that: A first connecting rod (14) is provided on one side of the cleaning brush (8), and a mounting plate (15) is provided on one end of the first connecting rod (14) away from the cleaning brush (8), and the mounting plate (15) is connected to the exhaust fan (6) via a first mounting bolt (16).

4. The protective high-voltage power supply and distribution system according to claim 1, characterized in that: A first connecting groove (17) for the dustproof net (7) to engage is provided on one side of the installation frame (4), and the dustproof net (7) is fixedly installed in the first connecting groove (17) by a plurality of second installation bolts (18).

5. The protective high-voltage power supply and distribution system according to claim 1, characterized in that: The ash collecting structure comprises an ash collecting cover (19); a groove (20) for connecting the ash collecting cover (19) is provided on the installation frame (4); connecting blocks (21) are provided on both sides of the ash collecting cover (19); second connecting grooves (22) for connecting the connecting blocks (21) are provided on both sides of the groove (20); and the ash collecting cover (19) is connected to the second connecting groove (22) via a snap-fit ​​assembly.

6. The protective high-voltage power supply and distribution system according to claim 5, characterized in that: The snap-fit ​​assembly comprises an L-shaped block (23), a second connecting rod (24) and two meshing triangular blocks (25); the two meshing triangular blocks (25) are respectively connected to the L-shaped block (23) and one end of the second connecting rod (24); the L-shaped block (23) and the second connecting rod (24) are respectively connected to the dust collecting cover (19) and the installation frame (4).

7. The protective high-voltage power supply and distribution system according to claim 1, characterized in that: The protective structure comprises a protective top (26), a first support rod (27), a second support rod (28) and a first buffer spring (29); one end of the first support rod (27) and the second support rod (28) are respectively connected to the protective top (26) and the power distribution cabinet (1); a mounting groove (30) is provided on the second support rod (28); the first buffer spring (29) is installed in the mounting groove (30); and the other end of the first buffer spring (29) is connected to an end of the first support rod (27) away from the protective top (26).

8. The protective high-voltage power supply and distribution system according to claim 1, characterized in that: The buffer structure includes a first connection frame (31), an arc-shaped spring piece (32), a support block (33) and a plurality of second buffer springs (34). The support block (33) is slidably connected in the first connection frame (31). Both ends of the arc-shaped spring piece (32) are connected to the support block (33). The arc-shaped end of the arc-shaped spring piece (32) is connected to the power distribution cabinet (1). Both ends of the plurality of second buffer springs (34) are respectively connected to the power distribution cabinet (1) and the support block (33).

9. The protective high-voltage power supply and distribution system according to claim 1, characterized in that: The drying structure includes a drying mesh frame (35), a desiccant (36) and a second connection frame (37). The second connection frame (37) is fixedly arranged in the power distribution cabinet (1). Clamping blocks (38) are arranged at both ends of the drying mesh frame (35). The clamping blocks (38) are clamped in the second connection frame (37). The drying mesh frame (35) is connected in the power distribution cabinet (1) through a fixing component.

10. The protective high-voltage power supply and distribution system according to claim 9, characterized in that: The fixing component includes a U-shaped clamping part (39), a return spring (40) and a pulling frame (41). The U-shaped clamping part (39) is connected to the drying mesh frame (35) through the return spring (40). A clamping groove (42) for clamping both ends of the U-shaped clamping part (39) is formed in the power distribution cabinet (1). The pulling frame (41) is fixedly connected to the U-shaped clamping part (39).

Images