Power distribution cabinet with ventilation mechanism on power distribution cabinet shell

Abstract

The invention discloses a power distribution cabinet with a ventilation mechanism on a power distribution cabinet shell, and relates to the technical field of power distribution cabinets. The ventilation mechanism comprises an air outlet formed in the upper end of the power distribution cabinet, an air inlet is formed in the lower end of the power distribution cabinet, a motor is fixedly connected to the upper end of the power distribution cabinet through a support, the output end of the motor extends into the air outlet and is fixedly connected with a plurality of fan blades, and a plurality of mounting plates are fixedly connected to the inner wall of the power distribution cabinet; a plurality of ventilation holes are formed in the upper ends of the multiple mounting plates, and the multiple ventilation holes penetrate through the mounting plates; the liquid cooling mechanism comprises a heat dissipation pipe fixedly connected to the inner wall of the power distribution cabinet, the side wall of the power distribution cabinet is fixedly connected with a box body through a support, and the inner wall of the box body is in sealed sliding connection with a sliding plug. By starting the motor, liquid cooling heat absorption can be carried out while ventilation and heat dissipation are carried out on the power distribution cabinet, the cooling effect is better, and the cooling efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, and in particular to a power distribution cabinet whose shell is provided with a ventilation mechanism. Background Art

[0002] Distribution cabinets are divided into power distribution cabinets, lighting distribution cabinets, and metering cabinets. They are the final equipment of the distribution system. Distribution cabinets are usually used in situations where the load is relatively dispersed and there are fewer circuits. They distribute the electrical energy of a circuit of the upper-level distribution equipment to the nearest load.

[0003] When the distribution cabinet is in actual use, the electrical equipment inside it will emit heat. This heat accumulates inside the distribution cabinet and cannot be dissipated, causing the temperature inside the distribution cabinet to be too high. Excessive temperature will damage the internal electrical equipment. Currently, vents are usually opened on the distribution cabinet body for ventilation and heat dissipation, but the heat dissipation effect is poor. In addition, if it encounters cold weather, the heat inside the distribution cabinet will quickly dissipate through the vents, which may cause the temperature inside the distribution cabinet to be too low, which will also affect the operation of the electrical equipment.

[0004] Based on this, we propose a power distribution cabinet with a housing having a ventilation mechanism. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a distribution cabinet with a housing having a ventilation mechanism.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A power distribution cabinet having a housing with a ventilation mechanism, comprising a power distribution cabinet;

[0008] A ventilation mechanism, the ventilation mechanism including an exhaust port opened at the upper end of the power distribution cabinet, an air inlet opened at the lower end of the power distribution cabinet, a motor fixedly connected to the upper end of the power distribution cabinet via a bracket, an output end of the motor extending into the exhaust port and fixedly connected to a plurality of fan blades, a plurality of mounting plates fixedly connected to the inner wall of the power distribution cabinet, a plurality of ventilation holes opened at the upper ends of the plurality of mounting plates, and the plurality of ventilation holes being arranged through the mounting plates;

[0009] A liquid cooling mechanism, the liquid cooling mechanism comprising a heat dissipation pipe fixedly connected to the inner wall of the power distribution cabinet, the side wall of the power distribution cabinet being fixedly connected to a box body via a bracket, a sliding plug being sealingly and slidably connected to the inner wall of the box body, the box body being filled with coolant, and the box body being connected to the heat dissipation pipe via a liquid inlet pipe;

[0010] The driving mechanism includes a circular plate that is sealingly and slidingly connected to the inner wall of the box, the inner wall of the circular plate is sealingly and slidingly connected to a trigger plate, a plurality of first springs are fixedly connected between the trigger plate and the inner wall of the circular plate, the side wall of the circular plate is fixedly connected to a hollow rod, the other end of the hollow rod is fixedly connected to the side wall of the sliding plug, the inner wall of the box is rotatably connected to a reciprocating screw, and the side wall of the reciprocating screw is threadedly connected to the circular plate.

[0011] Preferably, the driving mechanism also includes a vertical plate fixedly connected to the upper end of the distribution cabinet, the side wall of the vertical plate is rotatably connected to a hollow rotating shaft, the side wall of the motor output shaft is fixedly connected to a first bevel gear, the side wall of the hollow rotating shaft is fixedly connected to a second bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0012] Preferably, the space between the sliding plug and the circular plate forms a water storage chamber, and the water storage chamber is filled with water.

[0013] Preferably, a control mechanism is installed in the hollow rotating shaft, and the control mechanism includes two vertical grooves symmetrically opened on the inner wall of the hollow rotating shaft, and the inner walls of the two vertical grooves are slidably connected with a magnetic clamping rod, one end of the reciprocating screw passes through the side wall of the box body and extends into the hollow rotating shaft, and the side wall of the reciprocating screw located in the hollow rotating shaft is provided with a plurality of clamping grooves cooperating with the magnetic clamping rod, the inner wall of the vertical groove is fixedly connected to an electromagnet, and a second spring is fixedly connected between the inner wall of the vertical groove and the magnetic clamping rod.

[0014] Preferably, the control mechanism further comprises a first conductive ring fixedly connected to the inner wall of the circular plate, a second conductive ring fixedly connected to the side wall of the trigger plate, and the first conductive ring, the second conductive ring, the electromagnet and the external power supply are electrically connected via wires.

[0015] Preferably, a speed reduction mechanism is installed on the distribution cabinet, and the speed reduction mechanism includes two spline shafts symmetrically connected to the upper end of the distribution cabinet, the side walls of the spline shafts are slidingly connected to the spline sleeves, the side walls of the spline sleeves are fixedly connected to the friction plates, the side walls of the motor output shafts are fixedly connected to the first gear, the upper end of the spline shafts is fixedly connected to the second gear, and the first gear is meshingly connected to the second gear.

[0016] Preferably, the speed reduction mechanism also includes two vertical cylinders symmetrically fixedly connected to the upper end of the distribution cabinet, the inner walls of the two vertical cylinders are sealed and slidably connected with slides, the upper ends of the slides are fixedly connected with connecting rods, the lower end of the friction plate is provided with an annular T-groove, the inner wall of the annular T-groove is slidably connected with a T-shaped block, the upper end of the connecting rod passes through the upper end of the vertical cylinder and is fixedly connected to the T-shaped block, and the vertical cylinder is connected to the inside of the circular plate through a connecting pipe.

[0017] Preferably, an adjustment mechanism is installed in the exhaust outlet, and the adjustment mechanism includes two slide grooves symmetrically opened on the inner wall of the exhaust outlet, and the inner walls of the two slide grooves are slidably connected to baffles, and two grooves are symmetrically opened on the top of the power distribution cabinet. The lower end of the slide is fixedly connected to a vertical rod, and the lower end of the vertical rod extends into the groove and is fixedly connected to a trapezoidal block. The side wall of the baffle is fixedly connected to a T-shaped round rod, and one end of the T-shaped round rod extends into the groove and slides against the side wall of the trapezoidal block. The side wall of the T-shaped round rod is provided with a third spring, and the two ends of the third spring are respectively fixedly connected to the side wall of the baffle and the inner wall of the slide groove.

[0018] Preferably, a first dustproof net is fixedly connected to the inner wall of the air outlet, and a second dustproof net is fixedly connected to the inner wall of the air inlet.

[0019] The present invention has the following beneficial effects:

[0020] 1. By setting up the ventilation mechanism, liquid cooling mechanism and driving mechanism, and starting the motor, the power distribution cabinet can be ventilated and dissipated while liquid cooling is performed to absorb heat, resulting in better cooling effect and higher cooling efficiency;

[0021] 2. By setting up a control mechanism, when encountering cold weather, the water in the water storage chamber will condense due to the low temperature. When the water condenses, its volume will increase, which can push the trigger plate to slide sealedly inside the circular plate until the first conductive ring contacts the second conductive ring. At this time, the circuit is connected, the electromagnet is energized to generate magnetism, and the magnetic clamping rod is sucked out of the slot. At this time, the hollow shaft can no longer drive the reciprocating screw to rotate, and the pumping of coolant into the heat pipe will stop, thereby reducing the heat dissipation efficiency. As a result, the heat dissipation inside the distribution cabinet is reduced in cold weather, thereby preventing the internal temperature of the distribution cabinet from being too low and causing the power equipment to malfunction;

[0022] 3. By setting up a deceleration mechanism, when the trigger plate slides toward the inner sealing portion of the circular plate, the air inside the circular plate will be squeezed into the vertical cylinder through the connecting pipe, thereby pushing the sliding plate upward, and then driving the connecting rod upward, pushing the friction plate upward, so that the upper end of the friction plate fits with the lower end of the first gear, and then friction is generated between the friction plate and the first gear. The friction can increase the load of the motor, thereby reducing the speed of the motor output shaft, thereby reducing the speed of the fan blades, reducing the exhaust efficiency, and reducing the ventilation effect inside the distribution cabinet, thereby further reducing the heat exhaust speed and ensuring the temperature inside the distribution cabinet;

[0023] 4. When the motor rotates, it will synchronously drive the first gear to rotate, and then drive the second gear to rotate, thereby driving the spline shaft to rotate, and driving the friction plate to rotate. Since the rotation direction of the friction plate is opposite to that of the first gear, the tangential force generated by the rotation of the friction plate can further provide resistance, increase the load of the motor, and effectively reduce the speed of the motor output shaft;

[0024] 5. By setting up an adjustment mechanism, the vertical rod will be moved upward synchronously during the upward movement of the slide, thereby driving the trapezoidal block to move upward, pushing the T-shaped round rod to slide, and making the two baffles slide close to each other, thereby increasing the area of the exhaust port and reducing the diameter of the exhaust port, which can reduce the exhaust volume and further reduce the heat exhaust speed to ensure the temperature inside the distribution cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of a power distribution cabinet whose housing has a ventilation mechanism, as proposed by the present invention;

[0026] Figure 2 for Figure 1 Rear view schematic diagram of the mid-structure;

[0027] Figure 3 for Figure 1 A schematic transverse cross-sectional view of the mid-structure;

[0028] Figure 4 for Figure 1 A longitudinal cross-sectional view of the middle structure;

[0029] Figure 5 for Figure 3 A schematic diagram of the structure enlargement at point A;

[0030] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point B in FIG.

[0031] Figure 7 for Figure 3 A magnified schematic diagram of the structure at position C in FIG;

[0032] Figure 8 for Figure 4 A magnified schematic diagram of the structure at D in FIG.

[0033] Figure 9 for Figure 4 Schematic diagram of the enlarged structure at E in FIG.

[0034] In the figure: 1, power distribution cabinet; 2, exhaust vent; 3, air inlet; 4, motor; 5, fan blade; 6, mounting plate; 7, ventilation hole; 8, heat pipe; 9, box; 10, slide plug; 11, coolant; 12, liquid inlet pipe; 13, circular plate; 14, trigger plate; 15, first spring; 16, hollow rod; 17, reciprocating screw; 18, vertical plate; 19, hollow shaft; 20, first bevel gear; 21, second bevel gear; 22, water storage chamber; 23, vertical slot; 24, magnetic clamping rod; 25, clamping slot; 26, Electromagnet; 27. Second spring; 28. First conductive ring; 29. Second conductive ring; 30. Spline shaft; 31. First gear; 32. Second gear; 33. Spline sleeve; 34. Friction plate; 35. Vertical cylinder; 36. Slide plate; 37. Connecting rod; 38. Annular T-slot; 39. T-shaped block; 40. Connecting pipe; 41. Slide groove; 42. Baffle; 43. Groove; 44. Vertical rod; 45. Trapezoidal block; 46. T-shaped round rod; 47. Third spring; 48. First dustproof net; 49. Second dustproof net. DETAILED DESCRIPTION

[0035] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Reference Figure 1 - Figure 9 , a power distribution cabinet having a housing with a ventilation mechanism, comprising a power distribution cabinet 1;

[0037] The ventilation mechanism includes an exhaust port 2 opened at the upper end of the distribution cabinet 1, an air inlet 3 opened at the lower end of the distribution cabinet 1, a motor 4 fixedly connected to the upper end of the distribution cabinet 1 through a bracket, the output end of the motor 4 extends into the exhaust port 2 and is fixedly connected to a plurality of fan blades 5, a plurality of mounting plates 6 are fixedly connected to the inner wall of the distribution cabinet 1, and a plurality of ventilation holes 7 are opened on the upper ends of the plurality of mounting plates 6, and the plurality of ventilation holes 7 are arranged through the mounting plates 6;

[0038] Furthermore, by starting the motor 4, the multiple fan blades 5 are driven to rotate, thereby performing ventilation and exhaust. The external cold air will enter the distribution cabinet 1 through the air inlet 3, and the heat inside the distribution cabinet 1 will be discharged through the exhaust port 2, thereby performing ventilation, reducing the temperature inside the distribution cabinet 1, and ensuring the normal operation of the electrical equipment inside the distribution cabinet 1.

[0039] It is worth mentioning that, since the airflow flows vertically from bottom to top during ventilation, the heat inside the power distribution cabinet 1 can be taken away to the maximum extent.

[0040] Liquid cooling mechanism, the liquid cooling mechanism includes a heat dissipation pipe 8 fixedly connected to the inner wall of the power distribution cabinet 1, the side wall of the power distribution cabinet 1 is fixedly connected to the box body 9 through a bracket, the inner wall of the box body 9 is sealed and slidably connected to the sliding plug 10, the sliding plug 10 is made of a material with good thermal conductivity, the box body 9 is filled with coolant 11, and the box body 9 is connected to the heat dissipation pipe 8 through a liquid inlet pipe 12;

[0041] The driving mechanism includes a circular plate 13 that is sealingly and slidingly connected to the inner wall of the box body 9, and a trigger plate 14 is sealingly and slidingly connected to the inner wall of the circular plate 13. A plurality of first springs 15 are fixedly connected between the trigger plate 14 and the inner wall of the circular plate 13. A hollow rod 16 is fixedly connected to the side wall of the circular plate 13, and the other end of the hollow rod 16 is fixedly connected to the side wall of the sliding plug 10. A reciprocating screw 17 is rotatably connected to the inner wall of the box body 9, and the side wall of the reciprocating screw 17 is threadedly connected to the circular plate 13.

[0042] The driving mechanism also includes a vertical plate 18 fixedly connected to the upper end of the distribution cabinet 1, and the side wall of the vertical plate 18 is rotatably connected to a hollow rotating shaft 19. The side wall of the output shaft of the motor 4 is fixedly connected to a first bevel gear 20, and the side wall of the hollow rotating shaft 19 is fixedly connected to a second bevel gear 21. The first bevel gear 20 is meshed with the second bevel gear 21.

[0043] The space between the sliding plug 10 and the circular plate 13 forms a water storage chamber 22 , which is filled with water.

[0044] A control mechanism is installed in the hollow shaft 19. The control mechanism includes two vertical slots 23 (such as Figure 9 As shown), the inner walls of the two vertical slots 23 are slidably connected to magnetic clamping rods 24, one end of the reciprocating screw 17 passes through the side wall of the box body 9 and extends into the hollow rotating shaft 19, and the side wall of the reciprocating screw 17 inside the hollow rotating shaft 19 is provided with a plurality of clamping grooves 25 that cooperate with the magnetic clamping rods 24, the inner wall of the vertical slot 23 is fixedly connected to the electromagnet 26, and a second spring 27 is fixedly connected between the inner wall of the vertical slot 23 and the magnetic clamping rod 24.

[0045] Furthermore, when the motor 4 is running, it will synchronously drive the first bevel gear 20 to rotate, and then drive the second bevel gear 21 to rotate, drive the hollow rotating shaft 19 to rotate, and then drive the reciprocating screw 17 to rotate, and drive the circular plate 13 to slide back and forth inside the box body 9, and then the circular plate 13 will drive the sliding plug 10 to slide back and forth in a sealed manner through the hollow rod 16, and the coolant 11 will repeatedly enter and be drawn out of the heat dissipation pipe 8, and then the coolant 11 can exchange heat with the inside of the distribution cabinet 1 when flowing in the heat dissipation pipe 8, further reducing the temperature inside the distribution cabinet 1 and improving the heat dissipation efficiency, and when the coolant 11 is drawn back into the box body 9, the heat on the coolant 11 will be absorbed by the water in the water storage chamber 22, thereby reducing the temperature of the coolant 11 and ensuring the heat absorption efficiency of the coolant 11.

[0046] The control mechanism further includes a first conductive ring 28 (such as Figure 8 As shown), the side wall of the trigger plate 14 is fixedly connected to the second conductive ring 29, and the first conductive ring 28, the second conductive ring 29, the electromagnet 26 and the external power supply are electrically connected through wires.

[0047] Furthermore, when encountering cold weather, the water in the water storage chamber 22 will condense due to the low temperature, and the volume of the water will increase when condensing, which can push the trigger plate 14 to slide sealedly inside the circular plate 13 until the first conductive ring 28 contacts the second conductive ring 29. At this time, the circuit is connected, and the electromagnet 26 is energized to generate magnetism, which sucks the magnetic clamping rod 24 out of the slot 25. At this time, the hollow shaft 19 can no longer drive the reciprocating screw 17 to rotate, and then stop pumping coolant 11 into the heat pipe 8, thereby reducing the heat dissipation efficiency, so that the heat dissipation inside the distribution cabinet 1 is reduced in cold weather, thereby avoiding the internal temperature of the distribution cabinet 1 being too low and causing the power equipment to fail to operate normally.

[0048] The distribution cabinet 1 is equipped with a deceleration mechanism, which includes two spline shafts 30 symmetrically connected to the upper end of the distribution cabinet 1. The side walls of the spline shafts 30 are slidably connected to the spline sleeves 33 (such as Figure 6 As shown), the side wall of the spline sleeve 33 is fixedly connected to the friction plate 34, the side wall of the output shaft of the motor 4 is fixedly connected to the first gear 31, the upper end of the spline shaft 30 is fixedly connected to the second gear 32, and the first gear 31 is meshed with the second gear 32.

[0049] The speed reduction mechanism also includes two vertical cylinders 35 symmetrically fixedly connected to the upper end of the distribution cabinet 1. The inner walls of the two vertical cylinders 35 are sealed and slidably connected with slides 36. The upper ends of the slides 36 are fixedly connected to the connecting rods 37. The lower end of the friction plate 34 is provided with an annular T-groove 38. The inner wall of the annular T-groove 38 is slidably connected with a T-shaped block 39. The upper end of the connecting rod 37 passes through the upper end of the vertical cylinder 35 and is fixedly connected to the T-shaped block 39. The vertical cylinder 35 is connected to the inside of the circular plate 13 through a connecting pipe 40. The connecting pipe 40 is made of a hose.

[0050] Furthermore, when the trigger plate 14 slides sealedly toward the inside of the circular plate 13, the air inside the circular plate 13 will be squeezed into the vertical cylinder 35 through the connecting pipe 40, thereby pushing the slide plate 36 to move upward, and then driving the connecting rod 37 to move upward, pushing the friction plate 34 to move upward, so that the upper end of the friction plate 34 is in contact with the lower end of the first gear 31, and then friction is generated between the friction plate 34 and the first gear 31. The friction can increase the load of the motor 4, thereby reducing the speed of the output shaft of the motor 4, thereby reducing the speed of the fan blades 5, reducing the exhaust efficiency, and reducing the ventilation effect inside the distribution cabinet 1, thereby further reducing the heat exhaust speed and ensuring the temperature inside the distribution cabinet 1.

[0051] It is worth mentioning that when the motor 4 rotates, it will synchronously drive the first gear 31 to rotate, and then drive the second gear 32 to rotate, thereby driving the spline shaft 30 to rotate, and driving the friction plate 34 to rotate. Since the rotation direction of the friction plate 34 is opposite to the rotation direction of the first gear 31, the tangential force generated by the rotation of the friction plate 34 can further provide resistance, increase the load of the motor 4, and have a good effect of reducing the output shaft speed of the motor 4.

[0052] An adjustment mechanism is installed in the exhaust outlet 2, which includes two slide grooves 41 symmetrically opened on the inner wall of the exhaust outlet 2. The inner walls of the two slide grooves 41 are slidably connected to baffles 42. Two grooves 43 are symmetrically opened on the top of the distribution cabinet 1. The lower end of the slide plate 36 is fixedly connected to a vertical rod 44. The lower end of the vertical rod 44 extends into the groove 43 and is fixedly connected to a trapezoidal block 45. The side wall of the baffle 42 is fixedly connected to a T-shaped round rod 46. One end of the T-shaped round rod 46 extends into the groove 43 and slides against the side wall of the trapezoidal block 45. The side wall of the T-shaped round rod 46 is sleeved with a third spring 47. The two ends of the third spring 47 are respectively fixedly connected to the side wall of the baffle 42 and the inner wall of the slide groove 41.

[0053] Furthermore, during the upward movement of the slide plate 36, the vertical rod 44 will be synchronously driven to move upward, thereby driving the trapezoidal block 45 to move upward, pushing the T-shaped round rod 46 to slide, causing the two baffles 42 to slide close to each other, thereby increasing the area of the exhaust port 2 and reducing the diameter of the exhaust port 2, which can reduce the exhaust volume and further reduce the heat exhaust speed to ensure the temperature inside the distribution cabinet 1.

[0054] A first dustproof net 48 is fixedly connected to the inner wall of the exhaust port 2, and a second dustproof net 49 is fixedly connected to the inner wall of the air inlet 3. The first dustproof net 48 and the second dustproof net 49 can prevent dust from entering the interior of the distribution cabinet 1 through the air inlet 3 and the exhaust port 2, thereby preventing dust from causing short circuits in the electrical equipment inside the distribution cabinet 1.

[0055] In the present invention, by starting the motor 4, the multiple fan blades 5 are driven to rotate, thereby performing ventilation and exhaust. The external cold air will enter the distribution cabinet 1 through the air inlet 3, and the heat inside the distribution cabinet 1 will be discharged through the exhaust port 2, thereby performing ventilation, reducing the temperature inside the distribution cabinet 1, and ensuring the normal operation of the electrical equipment inside the distribution cabinet 1.

[0056] When the motor 4 is running, it will synchronously drive the first bevel gear 20 to rotate, and then drive the second bevel gear 21 to rotate, drive the hollow rotating shaft 19 to rotate, and then drive the reciprocating screw 17 to rotate, drive the circular plate 13 to slide back and forth inside the box body 9, and then the circular plate 13 will drive the sliding plug 10 to slide back and forth in a sealed manner through the hollow rod 16, and the coolant 11 will repeatedly enter and be drawn out of the heat dissipation pipe 8, and then the coolant 11 can exchange heat with the inside of the distribution cabinet 1 when flowing in the heat dissipation pipe 8, further reduce the temperature inside the distribution cabinet 1, and improve the heat dissipation efficiency, and when the coolant 11 is drawn back into the box body 9, the heat on the coolant 11 will be absorbed by the water in the water storage chamber 22, thereby reducing the temperature of the coolant 11 and ensuring the heat absorption efficiency of the coolant 11.

[0057] When encountering cold weather, the water in the water storage chamber 22 will condense due to the low temperature, and its volume will increase when the water condenses, which can push the trigger plate 14 to slide sealedly inside the circular plate 13 until the first conductive ring 28 contacts the second conductive ring 29. At this time, the circuit is connected, and the electromagnet 26 is energized to generate magnetism, which sucks the magnetic clamping rod 24 out of the slot 25. At this time, the hollow shaft 19 can no longer drive the reciprocating screw 17 to rotate, and then stops pumping coolant 11 into the heat pipe 8, thereby reducing the heat dissipation efficiency, so that the heat dissipation inside the distribution cabinet 1 is reduced in cold weather, thereby avoiding the internal temperature of the distribution cabinet 1 being too low and causing the power equipment to fail to operate normally.

[0058] In addition, when the trigger plate 14 slides sealedly toward the inside of the circular plate 13, the air inside the circular plate 13 will be squeezed into the vertical cylinder 35 through the connecting pipe 40, thereby pushing the slide plate 36 to move upward, and then driving the connecting rod 37 to move upward, pushing the friction plate 34 to move upward, so that the upper end of the friction plate 34 is in contact with the lower end of the first gear 31, and then friction is generated between the friction plate 34 and the first gear 31. The friction can increase the load of the motor 4, thereby reducing the speed of the output shaft of the motor 4, thereby reducing the speed of the fan blades 5, reducing the exhaust efficiency, and reducing the ventilation effect inside the distribution cabinet 1, thereby further reducing the heat exhaust speed and ensuring the temperature inside the distribution cabinet 1.

[0059] In addition, when the motor 4 rotates, it will synchronously drive the first gear 31 to rotate, and then drive the second gear 32 to rotate, thereby driving the spline shaft 30 to rotate, and driving the friction plate 34 to rotate. Since the rotation direction of the friction plate 34 is opposite to the rotation direction of the first gear 31, the tangential force generated by the rotation of the friction plate 34 can further provide resistance, increase the load of the motor 4, and have a good effect of reducing the output shaft speed of the motor 4.

[0060] During the upward movement of the slide plate 36, the vertical rod 44 will be driven upward synchronously, thereby driving the trapezoidal block 45 to move upward, pushing the T-shaped round rod 46 to slide, causing the two baffles 42 to slide close to each other, thereby increasing the area of the exhaust port 2 blocked, reducing the diameter of the exhaust port 2, reducing the exhaust volume, and further reducing the heat exhaust speed to ensure the temperature inside the distribution cabinet 1.

[0061] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A power distribution cabinet having a ventilation mechanism on its housing, characterized in that: include: Power distribution cabinet (1); A ventilation mechanism, the ventilation mechanism comprising an exhaust port (2) provided at the upper end of the power distribution cabinet (1), and an air inlet (3) provided at the lower end of the power distribution cabinet (1); A liquid cooling mechanism, the liquid cooling mechanism comprising a heat dissipation pipe (8) fixedly connected to the inner wall of a power distribution cabinet (1); a box (9) fixedly connected to the side wall of the power distribution cabinet (1) via a bracket; a sliding plug (10) sealingly and slidably connected to the inner wall of the box (9); a cooling liquid (11) filled in the box (9); and the box (9) communicating with the heat dissipation pipe (8) via a liquid inlet pipe (12); A driving mechanism comprises a circular plate (13) sealed and slidably connected to the inner wall of a box body (9); a trigger plate (14) is sealed and slidably connected to the inner wall of the circular plate (13); a plurality of first springs (15) are fixedly connected between the trigger plate (14) and the inner wall of the circular plate (13); a hollow rod (16) is fixedly connected to the side wall of the circular plate (13); the other end of the hollow rod (16) is fixedly connected to the side wall of the sliding plug (10); a reciprocating screw (17) is rotatably connected to the inner wall of the box body (9); and the side wall of the reciprocating screw (17) is threadedly connected to the circular plate (13).

2. A power distribution cabinet having a housing with a ventilation mechanism according to claim 1, characterized in that: in: The upper end of the power distribution cabinet (1) is fixedly connected to a motor (4) via a bracket, the output end of the motor (4) extends into the exhaust port (2) and is fixedly connected to a plurality of fan blades (5), the inner wall of the power distribution cabinet (1) is fixedly connected to a plurality of mounting plates (6), the upper ends of the plurality of mounting plates (6) are each provided with a plurality of ventilation holes (7), and the plurality of ventilation holes (7) are arranged through the mounting plates (6).

3. A power distribution cabinet having a housing with a ventilation mechanism according to claim 2, characterized in that: in: The driving mechanism further comprises a vertical plate (18) fixedly connected to the upper end of the power distribution cabinet (1); a hollow rotating shaft (19) is rotatably connected to the side wall of the vertical plate (18); a first bevel gear (20) is fixedly connected to the side wall of the output shaft of the motor (4); a second bevel gear (21) is fixedly connected to the side wall of the hollow rotating shaft (19); and the first bevel gear (20) is meshed with the second bevel gear (21).

4. The power distribution cabinet having a housing with a ventilation mechanism according to claim 2, characterized in that: in: The space between the sliding plug (10) and the circular plate (13) forms a water storage chamber (22), and the water storage chamber (22) is filled with water.

5. The power distribution cabinet having a housing with a ventilation mechanism according to claim 3, characterized in that: in: A control mechanism is installed in the hollow rotating shaft (19), and the control mechanism includes two vertical grooves (23) symmetrically opened on the inner wall of the hollow rotating shaft (19), and the inner walls of the two vertical grooves (23) are both slidably connected with a magnetic clamping rod (24). One end of the reciprocating screw (17) passes through the side wall of the box (9) and extends into the hollow rotating shaft (19). The side wall of the reciprocating screw (17) located in the hollow rotating shaft (19) is provided with a plurality of clamping grooves (25) that cooperate with the magnetic clamping rod (24). The inner wall of the vertical groove (23) is fixedly connected with an electromagnet (26), and a second spring (27) is fixedly connected between the inner wall of the vertical groove (23) and the magnetic clamping rod (24).

6. The power distribution cabinet having a housing with a ventilation mechanism according to claim 5, characterized in that: in: The control mechanism further comprises a first conductive ring (28) fixedly connected to the inner wall of the circular plate (13); a second conductive ring (29) fixedly connected to the side wall of the trigger plate (14); and the first conductive ring (28), the second conductive ring (29), the electromagnet (26) and the external power supply are electrically connected via wires.

7. The power distribution cabinet having a housing with a ventilation mechanism according to claim 5, characterized in that: in: The power distribution cabinet (1) is equipped with a deceleration mechanism, comprising two spline shafts (30) symmetrically connected to the upper end of the power distribution cabinet (1), the side walls of the spline shafts (30) being slidably connected to a spline sleeve (33), the side walls of the spline sleeve (33) being fixedly connected to a friction plate (34), the side walls of the output shaft of the motor (4) being fixedly connected to a first gear (31), the upper end of the spline shaft (30) being fixedly connected to a second gear (32), and the first gear (31) being meshed with the second gear (32).

8. The power distribution cabinet having a housing with a ventilation mechanism according to claim 7, characterized in that: in: The deceleration mechanism further comprises two vertical cylinders (35) symmetrically fixedly connected to the upper end of the power distribution cabinet (1); the inner walls of the two vertical cylinders (35) are sealed and slidably connected with slide plates (36); the upper ends of the slide plates (36) are fixedly connected with connecting rods (37); the lower end of the friction plate (34) is provided with an annular T-groove (38); the inner wall of the annular T-groove (38) is slidably connected with a T-shaped block (39); the upper end of the connecting rod (37) passes through the upper end of the vertical cylinder (35) and is fixedly connected to the T-shaped block (39); the vertical cylinder (35) is connected to the inside of the circular plate (13) through a connecting pipe (40).

9. The power distribution cabinet having a housing with a ventilation mechanism according to claim 8, characterized in that: in: An adjustment mechanism is installed in the exhaust port (2), and the adjustment mechanism includes two slide grooves (41) symmetrically opened on the inner wall of the exhaust port (2), and the inner walls of the two slide grooves (41) are both slidably connected to a baffle (42). Two grooves (43) are symmetrically opened on the top of the power distribution cabinet (1), and the lower end of the slide plate (36) is fixedly connected to a vertical rod (44), and the lower end of the vertical rod (44) extends into the groove (43) and is fixedly connected to a trapezoidal block (45). The side wall of the baffle (42) is fixedly connected to a T-shaped round rod (46), and one end of the T-shaped round rod (46) extends into the groove (43) and slides against the side wall of the trapezoidal block (45). The side wall of the T-shaped round rod (46) is sleeved with a third spring (47), and the two ends of the third spring (47) are respectively fixedly connected to the side wall of the baffle (42) and the inner wall of the slide groove (41).

10. The power distribution cabinet having a housing with a ventilation mechanism according to claim 1, characterized in that: in: The inner wall of the air outlet (2) is fixedly connected to a first dustproof net (48), and the inner wall of the air inlet (3) is fixedly connected to a second dustproof net (49).

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