Low-voltage power distribution cabinet

Abstract

The invention discloses a low-voltage power distribution cabinet, and relates to the technical field of power distribution cabinets, the low-voltage power distribution cabinet comprises a cabinet body, the bottom of the cabinet body is rotatably connected with a transmission pipe, the outer surface of the transmission pipe is in transmission connection with a driving mechanism and an air inlet heat dissipation mechanism, and the air inlet heat dissipation mechanism is arranged on an air inlet box and the transmission pipe. A driving mechanism drives a transmission pipe to rotate, the transmission pipe drives a first fan blade in an air inlet box to rotate, then air is fed through the air inlet pipe, and external air enters a second mounting pipe through a first mounting pipe; then a pressure matching mechanism in a second mounting pipe and a permanent magnet block in a first mounting pipe are matched to drive a transmission iron ring and a blowing pipe to move up and down, so that the blowing pipe drives a plurality of blowing heads to perform sufficient and uniform blowing heat dissipation on each component in the cabinet body in an up-and-down reciprocating manner; and the heat dissipation effect on the components in the cabinet body is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, and in particular to a low-voltage power distribution cabinet. Background Art

[0002] The rated current of the low-voltage distribution cabinet is AC 50Hz, and the rated voltage is 380v. The distribution system is used for power, lighting and power distribution. The product has the characteristics of strong breaking capacity, good dynamic thermal stability, flexible electrical scheme, convenient combination, strong series and practicality, and novel structure. When the low-voltage distribution cabinet is in use, it is usually necessary to blow air to dissipate heat inside the cabinet because the electrical components installed inside generate a lot of heat when working.

[0003] During the use of existing low-voltage distribution cabinets, fans are usually installed at the bottom or side of the distribution cabinet to blow outside air into the cabinet to dissipate heat from the components inside the cabinet. However, during the heat dissipation process, due to the large number of electrical components installed inside, some electrical components are blocked by other components during the air blowing and heat dissipation process, so that the outside air cannot blow and dissipate heat on their surfaces. In the long run, this will cause damage to the electrical components, resulting in poor heat dissipation effect for the components in the cabinet. At the same time, the dust in the air cannot be fully filtered during the heat dissipation process. After a long period of air blowing and heat dissipation, a large amount of dust will accumulate in the cabinet, causing damage to the components in the cabinet. Summary of the invention

[0004] The purpose of the present invention is to provide a low-voltage power distribution cabinet to solve the deficiencies in the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A low-voltage power distribution cabinet comprises a cabinet body, the bottom of the cabinet body is rotatably connected to a transmission tube, the outer surface of the transmission tube is transmission-connected to a driving mechanism, the driving mechanism is used to drive the transmission tube to rotate, an air inlet box rotatably connected to the transmission tube is fixedly connected to the cabinet body, and the outer surface of the transmission tube is fixedly connected to a plurality of air inlet tubes; the driving mechanism comprises a driving motor fixedly connected to the cabinet body, the output end of the driving motor is fixedly connected to a driving shaft via a coupling, the outer surface of the driving shaft is fixedly sleeved with a first driving gear, and the outer surface of the first driving gear is meshingly connected with a second driving gear fixedly sleeved with the transmission tube.

[0007] An air inlet heat dissipation mechanism, which is arranged on the air inlet box and the transmission pipe, and is used to uniformly dissipate heat for components in the cabinet;

[0008] The air inlet filter mechanism is arranged on the air inlet pipe, and is used for filtering dust in the air and self-cleaning the filtered dust.

[0009] As a further solution of the present invention: the air inlet heat dissipation mechanism includes a first fan blade fixedly connected to a transmission pipe, the outer surface of the transmission pipe located in the air inlet box is provided with multiple air inlets, the top of the air inlet box is fixedly connected to an air outlet circle pipe through a pipeline, the outer surface of the air outlet circle pipe is fixedly connected to two first mounting tubes, the outer surface of the first mounting tube is slidably connected to a transmission iron ring, a blowing pipe is fixedly connected between the two transmission iron rings, a plurality of blowing heads are fixedly connected to the blowing pipe, a permanent magnet block is slidably connected in the first mounting tube, two second mounting tubes are fixedly connected to the outer surface of the first mounting tube, one end of the second mounting tube is fixedly connected to a hose fixedly connected to the blowing pipe, a pressure control mechanism is arranged in the second mounting tube, and the pressure control mechanism is used to automatically control the air inlet of the second mounting tube.

[0010] As a further solution of the present invention: the pressure control mechanism includes a mounting ring fixedly connected to a second mounting tube, a connecting rod fixedly connected inside the second mounting tube, a first telescopic rod fixedly connected to one side of the connecting rod, a sealing block slidably connected to the mounting ring fixedly connected to one end of the first telescopic rod, and a first spring fixedly connected to the sealing block fixedly sleeved on the outer surface of the first telescopic rod.

[0011] As a further solution of the present invention: a plurality of first balls are rotatably connected to the inner surface of the transmission iron ring.

[0012] As a further solution of the present invention: the air inlet filtering mechanism includes a plurality of first mounting grooves opened on the air inlet pipe, a plurality of dustproof filter screens are fixedly connected in the first mounting grooves, a mounting ring plate is fixedly connected to the outer surface of the air inlet pipe, a second spring is fixedly connected to one side of the mounting ring plate, one end of the second spring is fixedly connected to a cleaning ring plate slidably connected to the air inlet pipe, a first cleaning brush slidably connected to the inner surface of the cleaning ring plate is fixedly connected to the dustproof filter screen, a reverse blowing mechanism connected to the transmission pipe is provided in the air inlet box, the reverse blowing mechanism is used for reverse blowing of the air inlet pipe, so that the dust filtered by the dustproof filter screen is further cleaned.

[0013] As a further solution of the present invention: the reverse air blowing mechanism includes a mounting shaft rotatably connected to the air inlet box, a second fan blade is fixedly connected to the outer surface of the mounting shaft, a second telescopic rod is fixedly connected to the bottom end of the mounting shaft, a transmission electromagnet disk is fixedly connected to the bottom end of the second telescopic rod, a third spring fixedly connected to the transmission electromagnet disk is fixedly sleeved on the outer surface of the second telescopic rod, a transmission block is fixedly connected to the bottom of the transmission electromagnet disk, and a transmission groove slidably connected to the transmission block is provided at the top of the transmission pipe.

[0014] As a further solution of the present invention: a protective tube is fixedly connected to one side of the mounting ring plate, a plurality of second mounting grooves are opened on the outer surface of the protective tube, a protective filter screen is fixedly connected in the second mounting groove, and a second cleaning brush slidably connected to the protective filter screen is fixedly connected to the outer surface of the cleaning ring plate.

[0015] As a further solution of the present invention: a plurality of mounting blocks are fixedly connected to the inner surface of the mounting ring plate, and a second ball bearing slidably connected to the air inlet pipe is rotatably connected to one side of the mounting block.

[0016] As a further solution of the present invention: an outer surface of the transmission pipe is fixedly connected to an air intake pipe, an electromagnetic valve is provided on the air intake pipe, an electromagnetic valve is provided on the transmission pipe, one side of the air intake pipe is fixedly connected to a carbon dioxide cylinder fixedly connected to a cabinet, and a temperature sensor is provided in the cabinet.

[0017] As a further solution of the present invention: an exhaust pipe is fixedly connected to the top of the cabinet, and a dustproof net is fixedly connected to the top of the exhaust pipe.

[0018] Beneficial effects of the present invention:

[0019] (1) The driving mechanism drives the transmission tube to rotate, and the transmission tube drives the first fan blade in the air inlet box to rotate, and then the air is taken in through the air inlet tube, so that the outside air enters the second installation tube through the first installation tube, and then cooperates with the pressure matching mechanism in the second installation tube and the permanent magnet block in the first installation tube to drive the transmission iron ring and the blowing tube to move up and down, so that the blowing tube drives multiple blowing heads to move up and down to blow air to each component in the cabinet evenly to dissipate heat, thereby greatly improving the heat dissipation effect of the components in the cabinet.

[0020] (2) During the process of air suction and heat dissipation, the impurities and dust in the air are automatically filtered through the protective filter screen on the protective tube and the dust filter screen on the air inlet tube, effectively preventing the dust and impurities in the air from entering the cabinet and causing damage to the components in the cabinet, further improving the heat dissipation effect of the components. At the same time, the air inlet tube is driven to rotate through the transmission tube, thereby driving the cleaning ring plate to move back and forth. The cleaning ring plate drives the first cleaning brush and the second cleaning brush to automatically clean the dust filter screen and the protective filter screen, effectively preventing the filter screen from being blocked by impurities and dust, and improving the smoothness of the air intake.

[0021] (3) After the heat dissipation is completed, the transmission tube is driven by the driving motor to rotate in the reverse direction, and then the air inlet pipe is blown in the opposite direction through the cooperation of the reverse blowing mechanism. The air inlet pipe blows air to the dust filter plate and the protective filter plate to blow away the impurities and dust on the dust filter plate and the protective filter plate. At the same time, the first cleaning brush and the second cleaning brush are used to brush the dust filter plate and the protective filter plate, so that the dust filter plate and the protective filter plate are fully cleaned.

[0022] (4) When a fire occurs inside the cabinet, the temperature sensor detects that the temperature inside the cabinet is too high. At this time, the electromagnetic valve on the air inlet pipe is opened and the electromagnetic valve on the transmission pipe is closed. Then the carbon dioxide cylinder supplies carbon dioxide gas into the transmission pipe through the air inlet pipe, and then drives the blow pipe and the blow head to blow carbon dioxide gas into the cabinet to extinguish the fire. At the same time, the air in the cabinet is discharged to block the contact between the flammable materials in the cabinet and oxygen, further improving the fire extinguishing effect on the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 is a first stereogram of the external structure of the present invention;

[0025] Figure 2 It is a three-dimensional diagram of the internal structure of the present invention;

[0026] Figure 3 It is a three-dimensional diagram of the internal structure of the cabinet, the air inlet box and the protection tube of the present invention;

[0027] Figure 4 It is a front view of the internal structure of the first mounting tube, the second mounting tube and the blowing tube of the present invention;

[0028] Figure 5 It is a three-dimensional diagram of the external structure of the air inlet pipe of the present invention;

[0029] Figure 6 The present invention Figure 3 A magnified view of middle;

[0030] Figure 7 The present invention Figure 4 Enlarged view of B.

[0031] In the figure: 1, cabinet; 2, transmission pipe; 3, air inlet box; 4, air inlet pipe; 11, first fan blade; 12, air inlet; 13, air outlet pipe; 14, first mounting pipe; 15, transmission iron ring; 16, air blowing pipe; 17, air blowing head; 18, permanent magnet block; 19, second mounting pipe; 190, hose; 191, first ball bearing; 21, mounting ring; 22, connecting rod; 23, first telescopic rod; 24, sealing block; 25, first spring; 31, first mounting groove; 32, dust filter screen; 33, mounting ring plate; 34, second spring; 35, cleaning ring plate ; 36. first cleaning brush; 37. mounting block; 38. second ball bearing; 41. mounting shaft; 42. second fan blade; 43. second telescopic rod; 44. transmission electromagnet disk; 45. third spring; 46. transmission block; 47. transmission slot; 51. protection tube; 52. second mounting slot; 53. protection filter screen; 54. second cleaning brush; 61. air inlet pipe; 62. carbon dioxide cylinder; 63. temperature sensor; 71. exhaust pipe; 72. dust screen; 81. drive motor; 82. drive shaft; 83. first drive gear; 84. second drive gear. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] See also Figure 1-Figure 7As shown, the present invention is a low-voltage power distribution cabinet, including a cabinet body 1, a transmission tube 2 is rotatably connected to the bottom of the cabinet body 1, and a driving mechanism is rotatably connected to the outer surface of the transmission tube 2, and the driving mechanism is used to drive the transmission tube 2 to rotate. An air inlet box 3 rotatably connected to the transmission tube 2 is fixedly connected inside the cabinet body 1, and a plurality of air inlet tubes 4 are fixedly connected to the outer surface of the transmission tube 2. The driving mechanism includes a driving motor 81 fixedly connected to the cabinet body 1, and the driving motor 81 is controlled by a PLC programming program to control the driving motor 81 to rotate forward and reverse and rotate at an angle. The output end of the driving motor 81 is fixedly connected to a driving shaft 82 through a coupling, and the outer surface of the driving shaft 82 is fixed with a sleeve It is connected to a first driving gear 83, the outer surface of which is meshedly connected to a second driving gear 84 fixedly sleeved with the transmission tube 2. The driving motor 81 drives the driving shaft 82 to rotate, and the driving shaft 82 drives the transmission tube 2 to rotate through the first driving gear 83 and the second driving gear 84. An air inlet heat dissipation mechanism connected to the transmission tube 2 is provided in the air inlet box 3. The air inlet heat dissipation mechanism is used to uniformly dissipate heat for components in the cabinet 1. An air inlet filter mechanism is provided on the air inlet pipe 4. The air inlet filter mechanism is provided on the air inlet pipe 4. The air inlet filter mechanism is used to filter dust in the air and self-clean the filtered dust.

[0035] The driving mechanism drives the transmission tube 2 to rotate, and the transmission tube 2 drives the air inlet heat dissipation mechanism to rotate. The air inlet heat dissipation mechanism fully and evenly dissipates the heat for the components installed in the power distribution cabinet, thereby improving the heat dissipation effect for the components in the cabinet 1. Meanwhile, during the heat dissipation process, the air inlet filter mechanism filters the dust from the incoming air, thereby preventing dust in the air from entering the cabinet 1 during the heat dissipation process and damaging the components in the cabinet 1, thereby further improving the heat dissipation effect and protection effect for the components in the cabinet 1.

[0036] Embodiment 2

[0037] Based on Example 1, please refer to Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, the air inlet heat dissipation mechanism includes a first fan blade 11 fixedly sleeved with a transmission pipe 2, a plurality of air inlets 12 are provided on the outer surface of the transmission pipe 2 located in the air inlet box 3, an air outlet ring pipe 13 is fixedly connected to the top of the air inlet box 3 through a pipeline, two first mounting pipes 14 are fixedly connected to the outer surface of the air outlet ring pipe 13, a transmission iron ring 15 is slidably connected to the outer surface of the first mounting pipe 14, a blowing pipe 16 is fixedly connected between the two transmission iron rings 15, a plurality of blowing heads 17 are fixedly connected to the blowing pipe 16, a permanent magnet block 18 is slidably connected in the first mounting pipe 14, two second mounting pipes 19 are fixedly connected to the outer surface of the first mounting pipe 14, one end of the second mounting pipe 19 is fixedly connected to the outer surface of the first mounting pipe 14, and one end of the second mounting pipe 19 is fixedly connected to the outer surface of the first mounting pipe 14. A hose 190 fixedly connected to the blowing pipe 16 is fixedly connected, and a plurality of first balls 191 are rotatably connected to the inner surface of the transmission iron ring 15. A pressure control mechanism is arranged in the second mounting tube 19, and the pressure control mechanism is used to automatically control the air intake of the second mounting tube 19. The pressure control mechanism includes a mounting ring 21 fixedly connected to the second mounting tube 19, a connecting rod 22 is fixedly connected in the second mounting tube 19, a first telescopic rod 23 is fixedly connected to one side of the connecting rod 22, a sealing block 24 slidably connected to the mounting ring 21 is fixedly connected to one end of the first telescopic rod 23, and a first spring 25 fixedly connected to the sealing block 24 is fixedly sleeved on the outer surface of the first telescopic rod 23.

[0038] The transmission tube 2 is driven to rotate by the driving mechanism, and the transmission tube 2 drives the first fan blade 11 to rotate. The first fan blade 11 rotates in the air inlet box 3. At this time, the first fan blade 11 sucks air from the transmission tube 2 and the air inlet pipe 4 through the air inlet 12, and then the outside air enters the transmission tube 2 through the air inlet pipe 4, and then enters the air inlet box 3 through the air inlet 12 on the transmission tube 2. Then the air inlet box 3 blows air into the first mounting tube 14 through the pipeline and the air outlet ring tube 13. Then the permanent magnet block 18 moves upward in the first mounting tube 14 under the action of wind blowing force, and the permanent magnet block 18 drives the transmission iron ring 15 to slide upward on the outer surface of the first mounting tube 14, and the transmission iron ring 15 drives the blowing tube 16 to move upward. At the same time, the sealing block 24 also moves under the action of wind pressure, so that the first telescopic rod 23 and the first spring 25 are stretched, and then the rotation speed of the driving motor 81 is increased to increase the wind force. At this time, the sealing block 24 moves from the mounting tube 14 to the first mounting tube 14. The first spring 25 is stretched, and the permanent magnet block 18 moves upward slowly under the action of the increased wind force, thereby driving the transmission iron ring 15 and the blowing pipe 16 to move upward slowly, so that the multiple blowing heads 17 on the blowing pipe 16 blow heat to the components in the cabinet 1 from bottom to top, and then reduce the speed of the driving motor 81, the wind force is reduced, the first spring 25 contracts, the permanent magnet block 18 moves upward, and the blowing pipe 16 moves upward, and reciprocates in sequence, so that the blowing pipe 16 reciprocates up and down to each component in the cabinet 1 for sufficient and uniform blowing heat dissipation, which greatly improves the heat dissipation effect of the components in the cabinet 1.

[0039] Embodiment 3

[0040] Based on Example 2, please refer to Figure 3 , Figure 5 and Figure 6As shown, the air inlet filtering mechanism includes a plurality of first mounting grooves 31 opened on the air inlet pipe 4, a plurality of dust-proof filter screens 32 are fixedly connected in the first mounting grooves 31, a mounting ring plate 33 is fixedly connected to the outer surface of the air inlet pipe 4, a second spring 34 is fixedly connected to one side of the mounting ring plate 33, one end of the second spring 34 is fixedly connected to a cleaning ring plate 35 slidably connected to the air inlet pipe 4, a first cleaning brush 36 slidably connected to the dust-proof filter screen 32 is fixedly connected to the inner surface of the cleaning ring plate 35, a plurality of mounting blocks 37 are fixedly connected to the inner surface of the mounting ring plate 33, a second ball 38 slidably connected to the air inlet pipe 4 is rotatably connected to one side of the mounting block 37, a reverse blowing mechanism connected to the transmission pipe 2 is provided in the air inlet box 3, the reverse blowing mechanism is used for the air inlet pipe 4 to perform reverse blowing, so that the dust filtered by the dust-proof filter screen 32 is further cleaned;

[0041] A protective tube 51 is fixedly connected to one side of the mounting ring plate 33, and a plurality of second mounting grooves 52 are provided on the outer surface of the protective tube 51. A protective filter screen plate 53 is fixedly connected in the second mounting groove 52. A second cleaning brush 54 slidably connected to the protective filter screen plate 53 is fixedly connected to the outer surface of the cleaning ring plate 35.

[0042] During the air blowing and heat dissipation process, the wind first passes through the protective filter plate 53 on the protective tube 51 to filter out larger impurities in the air, and the preliminarily filtered air passes through the dust filter plate 32 on the air inlet pipe 4 to filter out dust in the air, effectively reducing the dust in the air entering the heat dissipation process and removing the dust, thereby reducing the damage of dust to components in the voltage cabinet. At the same time, during the air intake process, the driving motor 81 is rotated at an increased speed, thereby driving the transmission tube 2 to rotate, and the transmission tube 2 drives the air inlet pipe 4 to rotate. At this time, the cleaning ring plate 35 on the air inlet pipe 4 moves toward the outside of the air inlet pipe 4 under the action of centrifugal force, and the second spring 34 is stretched, and the cleaning ring plate 35 drives the first cleaning brush 36 and the second cleaning brush 54 to move, and the first The cleaning brush 36 cleans the outer surface of the dust filter plate 32, and the second cleaning brush 54 cleans the inner surface of the protective filter plate 53. When the driving motor 81 decelerates and moves, the centrifugal force is reduced, and the cleaning ring plate 35 drives the cleaning ring plate 35 to move into the air inlet duct 4 under the action of the pulling force of the second spring 34. At this time, the first cleaning brush 36 and the second cleaning brush 54 are driven to move inward, reciprocating in sequence, thereby realizing the reciprocating movement of the dust filter plate 32 and the protective filter plate 53, realizing self-cleaning of dust and impurities filtered on the surfaces of the dust filter plate 32 and the protective filter plate 53, effectively preventing impurities and dust from clogging the protective filter plate 53 and the dust filter plate 32, and improving the smoothness of the air intake.

[0043] The reverse air blowing mechanism comprises a mounting shaft 41 rotatably connected to the air inlet box 3, a second fan blade 42 is fixedly connected to the outer surface of the mounting shaft 41, a second telescopic rod 43 is fixedly connected to the bottom end of the mounting shaft 41, a transmission electromagnet disk 44 is fixedly connected to the bottom end of the second telescopic rod 43, a third spring 45 fixedly connected to the transmission electromagnet disk 44 is fixedly sleeved on the outer surface of the second telescopic rod 43, a transmission block 46 is fixedly connected to the bottom of the transmission electromagnet disk 44, and a transmission groove 47 slidably connected to the transmission block 46 is provided on the top of the transmission pipe 2;

[0044] When the dust filter plate 32 and the protective filter plate 53 are cleaned, the transmission electromagnet disk 44 is energized, and the transmission electromagnet disk 44 adsorbs the transmission tube 2. The transmission tube 2 is made of iron. At this time, the transmission electromagnet disk 44 moves downward, so that the transmission electromagnet disk 44 is adsorbed on the top of the transmission tube 2, and the second telescopic rod 43 and the third spring 45 are stretched. At this time, the driving motor 81 is used to rotate in the opposite direction, driving the transmission tube 2 to rotate in the opposite direction. At this time, the transmission block 46 on the transmission electromagnet disk 44 enters the transmission groove 47 under the action of suction, and at the same time, the transmission tube 2 drives the transmission electromagnet disk 44, the second telescopic rod 43 and the installation shaft 41 to rotate, and the installation shaft 41 drives the second fan blade 42 to rotate, and the second fan blade 42 moves to Blow air downward, at this time, the air inlet box 3 sucks air to the second mounting tube 19 through the pipeline, the air outlet circle tube 13 and the first mounting tube 14, and at this time the sealing block 24 is sucked, so that the sealing block 24 is moved out from the mounting ring 21, and at this time the wind enters the second mounting tube 19 through the blowing pipe 16 and the hose 190, and then blows air into the transmission tube 2, the transmission tube 2 blows air to the air inlet pipe 4, and the air inlet pipe 4 blows air to the dust filter plate 32 and the protective filter plate 53, and blows away the impurities and dust on the dust filter plate 32 and the protective filter plate 53, so that they are blown clean, and at the same time, the first cleaning brush 36 and the second cleaning brush 54 are brushed to fully clean the dust filter plate 32 and the protective filter plate 53.

[0045] Embodiment 4

[0046] Based on Example 2, please refer to Figure 1 and Figure 2 As shown, the outer surface of the transmission pipe 2 is fixedly connected to an air intake pipe 61, an electromagnetic valve is provided on the air intake pipe 61, an electromagnetic valve is provided on the transmission pipe 2, one side of the air intake pipe 61 is fixedly connected to a carbon dioxide gas cylinder 62 fixedly connected to the cabinet 1, and a temperature sensor 63 is provided in the cabinet 1.

[0047] When a fire occurs in the cabinet 1, the temperature sensor 63 in the cabinet 1 is the prior art, so it will not be described in detail here. When it detects that the temperature is too high, the electromagnetic valve on the transmission pipe 2 is closed, and the electromagnetic valve on the air inlet pipe 61 is automatically opened. At this time, the carbon dioxide gas in the carbon dioxide cylinder 62 enters the transmission pipe 2 through the air inlet pipe 61, and then the transmission pipe 2 enters the first installation pipe 14 through the air outlet ring pipe 13. Then, under the pressure of the carbon dioxide gas, the blowing pipe 16 is driven to move upward, and the carbon dioxide gas is blown out through the blowing head 17 on the blowing pipe 16, so as to achieve comprehensive blowing of carbon dioxide gas into the cabinet 1, extinguish the fire in the cabinet 1, and at the same time, discharge the air in the cabinet 1 to block the contact between the flammable materials in the cabinet 1 and oxygen, thereby further improving the fire extinguishing effect on the cabinet 1.

[0048] The working principle of the present invention is as follows: the transmission tube 2 is driven to rotate by the driving mechanism, and the transmission tube 2 drives the first fan blade 11 to rotate, and the first fan blade 11 rotates in the air inlet box 3. At this time, the first fan blade 11 sucks air from the transmission tube 2 and the air inlet pipe 4 through the air inlet 12, and then the outside air enters the transmission tube 2 through the air inlet pipe 4, and then enters the air inlet box 3 through the air inlet 12 on the transmission tube 2, and then the air inlet box 3 blows air into the first mounting tube 14 through the pipeline and the air outlet ring tube 13, and then the permanent magnet block 18 moves upward in the first mounting tube 14 under the action of wind blowing force, and the permanent magnet block 18 drives the transmission iron ring 15 to slide upward on the outer surface of the first mounting tube 14, and the transmission iron ring 15 drives the blowing tube 16 to move upward, and at the same time, the sealing block 24 also moves under the action of wind pressure, so that the first telescopic rod 23 and the first spring 25 are stretched, and then the rotation speed of the driving motor 81 is increased to increase the wind force. At this time, the sealing block 24 moves out from the mounting ring 21, and the wind enters the hose 190 through the second mounting tube 19, and then the hose 190 blows and dissipates heat to the components in the cabinet 1 through the multiple blowing heads 17 on the blowing pipe 16. Then, as the speed of the driving motor 81 increases, the wind speed also increases. At this time, the thrust exerted on the sealing block 24 increases, the first spring 25 is stretched, and at the same time, the permanent magnet block 18 slowly moves upward under the action of the increased wind force, thereby driving the driving iron ring 15 and the blowing pipe 16 to slowly move upward, so that the multiple blowing heads 17 on the blowing pipe 16 blow and dissipate heat to the components in the cabinet 1 from bottom to top, and then reduce the speed of the driving motor 81, the wind force is reduced, the first spring 25 contracts, the permanent magnet block 18 moves upward, and the blowing pipe 16 moves upward, and reciprocates in sequence, so that the blowing pipe 16 reciprocates up and down to achieve full and uniform blowing and heat dissipation for each component in the cabinet 1, greatly improving the heat dissipation effect of the components in the cabinet 1.

[0049] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A low-voltage power distribution cabinet, comprising a cabinet body (1), characterized in that: The bottom of the cabinet (1) is rotatably connected to a transmission tube (2); the outer surface of the transmission tube (2) is rotatably connected to a driving mechanism, the driving mechanism is used to drive the transmission tube (2) to rotate; an air inlet box (3) rotatably connected to the transmission tube (2) is fixedly connected inside the cabinet (1); and the outer surface of the transmission tube (2) is fixedly connected to a plurality of air inlet tubes (4); An air inlet heat dissipation mechanism, the air inlet heat dissipation mechanism being arranged on the air inlet box (3) and the transmission pipe (2), and the air inlet heat dissipation mechanism being used to uniformly dissipate heat from components in the cabinet; An air intake filter mechanism is arranged on an air intake pipe (4), and is used to filter dust in the air and to self-clean the filtered dust.

2. A low voltage distribution cabinet according to claim 1, characterized in that: The air inlet heat dissipation mechanism comprises a first fan blade (11) fixedly sleeved with a transmission pipe (2); the outer surface of the transmission pipe (2) located in the air inlet box (3) is provided with a plurality of air inlets (12); the top of the air inlet box (3) is fixedly connected to an air outlet ring pipe (13) via a pipeline; the outer surface of the air outlet ring pipe (13) is fixedly connected to two first mounting pipes (14); the outer surface of the first mounting pipe (14) is slidably connected to a transmission iron ring (15); a blowing pipe (15) is fixedly connected between the two transmission iron rings (15). 6), a plurality of blowing heads (17) are fixedly connected to the blowing pipe (16), a permanent magnet block (18) is slidably connected inside the first mounting tube (14), two second mounting tubes (19) are fixedly connected to the outer surface of the first mounting tube (14), one end of the second mounting tube (19) is fixedly connected to a hose (190) fixedly connected to the blowing pipe (16), and a pressure control mechanism is arranged inside the second mounting tube (19), and the pressure control mechanism is used to automatically control the air intake of the second mounting tube (19).

3. A low voltage distribution cabinet according to claim 2, characterized in that: The pressure control mechanism comprises a mounting ring (21) fixedly connected to a second mounting tube (19); a connecting rod (22) is fixedly connected inside the second mounting tube (19); a first telescopic rod (23) is fixedly connected to one side of the connecting rod (22); one end of the first telescopic rod (23) is fixedly connected to a sealing block (24) slidably connected to the mounting ring (21); and a first spring (25) fixedly connected to the sealing block (24) is fixedly sleeved on the outer surface of the first telescopic rod (23).

4. A low voltage distribution cabinet according to claim 2, characterized in that: The inner surface of the transmission iron ring (15) is rotatably connected to a plurality of first rolling balls (191).

5. A low voltage distribution cabinet according to claim 1, characterized in that: The air inlet filtering mechanism comprises a plurality of first mounting grooves (31) opened on the air inlet pipe (4), a plurality of dust filter screens (32) are fixedly connected in the first mounting grooves (31), a mounting ring plate (33) is fixedly connected to the outer surface of the air inlet pipe (4), a second spring (34) is fixedly connected to one side of the mounting ring plate (33), one end of the second spring (34) is fixedly connected to a cleaning ring plate (35) slidably connected to the air inlet pipe (4), a first cleaning brush (36) slidably connected to the dust filter screen (32) is fixedly connected to the inner surface of the cleaning ring plate (35), and a reverse blowing mechanism connected to the transmission pipe (2) is arranged in the air inlet box (3), and the reverse blowing mechanism is used for the air inlet pipe (4) to blow air in the reverse direction so that the dust filtered by the dust filter screen (32) is further cleaned.

6. A low voltage distribution cabinet according to claim 5, characterized in that: The reverse air blowing mechanism comprises a mounting shaft (41) rotatably connected to the air inlet box (3); a second fan blade (42) is fixedly connected to the outer surface of the mounting shaft (41); a second telescopic rod (43) is fixedly connected to the bottom end of the mounting shaft (41); a transmission electromagnet disk (44) is fixedly connected to the bottom end of the second telescopic rod (43); a third spring (45) fixedly connected to the transmission electromagnet disk (44) is fixedly sleeved on the outer surface of the second telescopic rod (43); a transmission block (46) is fixedly connected to the bottom of the transmission electromagnet disk (44); and a transmission groove (47) slidably connected to the transmission block (46) is provided at the top of the transmission pipe (2).

7. A low voltage distribution cabinet according to claim 5, characterized in that: A protective tube (51) is fixedly connected to one side of the mounting ring plate (33); a plurality of second mounting grooves (52) are provided on the outer surface of the protective tube (51); a protective filter screen plate (53) is fixedly connected inside the second mounting groove (52); and a second cleaning brush (54) slidably connected to the protective filter screen plate (53) is fixedly connected to the outer surface of the cleaning ring plate (35).

8. A low voltage distribution cabinet according to claim 5, characterized in that: A plurality of mounting blocks (37) are fixedly connected to the inner surface of the mounting ring plate (33), and a second ball (38) slidably connected to the air inlet pipe (4) is rotatably connected to one side of the mounting block (37).

9. A low voltage distribution cabinet according to claim 1, characterized in that: An air intake pipe (61) is fixedly connected to the outer surface of the transmission pipe (2), an electromagnetic valve is provided on the air intake pipe (61), an electromagnetic valve is provided on the transmission pipe (2), a carbon dioxide gas cylinder (62) fixedly connected to the cabinet (1) is fixedly connected to one side of the air intake pipe (61), and a temperature sensor (63) is provided in the cabinet (1).

10. A low voltage distribution cabinet according to claim 1, characterized in that: An exhaust pipe (71) is fixedly connected to the top of the cabinet (), and a dustproof net (72) is fixedly connected to the top of the exhaust pipe (71).

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