Switch cabinet with excellent heat dissipation performance for electrical engineering

Abstract

The utility model discloses a switch cabinet with excellent heat dissipation performance for electrical engineering, and relates to the technical field of switch cabinets, the switch cabinet comprises a cabinet body, two sides of the top end of the cabinet body are fixedly connected with U-shaped air inlet pipes, pipe bodies at the horizontal ends of the U-shaped air inlet pipes are fixedly connected with air gathering pipes in a transverse penetrating manner, the bottom end of a rotating shaft is fixedly connected with a group of second fan blades in the circumferential direction, and the bottom end of the rotating shaft is fixedly connected with a group of third fan blades in the circumferential direction. Heat in the cabinet body is discharged upwards through rotation of the fan in the fan box, part of hot air enters the air gathering pipe, the first fan blade is blown by the hot air, so that the rotating shaft drives the second fan blade to rotate, external cold air is sucked into the U-shaped air inlet pipe and then is discharged from the air outlet in the bottom of the U-shaped air inlet pipe, and the heat in the cabinet body is discharged through the air outlet in the bottom of the U-shaped air inlet pipe. And because the two air outlets are opposite, the blown cold air can collide with each other, so that the cold air can be quickly diffused into the cabinet body, the cooling of the interior of the cabinet body can be accelerated, the heat dissipation efficiency can be improved, and the condition that electronic components are damaged can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a switch cabinet with excellent heat dissipation performance for electrical engineering. Background Art

[0002] Switchgear is a cabinet used to secure switches, instruments and electronic components of various equipment. It is widely used in the electrical engineering industry. Its main function is to open, close, control and protect electrical equipment during the process of power generation, transmission, distribution and energy conversion in the power system.

[0003] Through patent search, it is found that a switch cabinet for electrical engineering with publication number CN212114475U includes a cabinet body, a non-slip pad is fixedly connected to the top of the cabinet body, an air outlet is opened on the inner wall of the cabinet body, a baffle is fixedly connected to the outer wall of the cabinet body, a fan box is movably connected to the inner wall of the cabinet body, a connecting block is fixedly connected to the inner wall of the fan box, and a positioning block is fixedly connected to the top of the connecting block. The switch cabinet for electrical engineering can achieve the purpose of good heat dissipation effect of the switch cabinet for electrical engineering, avoid the situation that the temperature in the device is too high and the electrical appliances in the device are damaged, reduce people's economic losses, reduce people's capital cost investment, bring convenience to the work of the staff, shorten the working time of the staff, improve the work efficiency of the staff, solve the problem of poor heat dissipation effect of the general switch cabinet for electrical engineering, and bring convenience to people's work and life.

[0004] The above patent dissipates heat from the switch cabinet by designing a fan box so that the heat is discharged from the air outlet. However, during the heat dissipation process of the fan box, since the hot air rises, part of the heat is discharged from the air outlet, but some heat still rises to the top of the switch cabinet, and the hot air at the top of the switch cabinet circulates continuously, resulting in poor heat dissipation at the bottom of the switch cabinet, which easily causes electronic components to overheat and be damaged. Therefore, a switch cabinet with excellent heat dissipation performance for electrical engineering is needed to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a switch cabinet with excellent heat dissipation performance for electrical engineering.

[0006] To achieve the above object, the utility model provides the following technical solution: a switch cabinet with excellent heat dissipation performance for electrical engineering, comprising a cabinet body, a sealed door is provided on the front side of the cabinet body, a fan box is fixedly connected to the top of the cabinet body, and a heat dissipation mechanism is provided on the top of the cabinet body;

[0007] The heat dissipation mechanism includes a connecting ring fixedly connected to the top of the cabinet, and U-shaped air inlet ducts are fixedly connected to both sides of the top of the cabinet, and the ends of the U-shaped air inlet ducts located inside the cabinet extend to the bottom of the cabinet, and the ends of the U-shaped air inlet ducts located outside the cabinet face downward, and the tube bodies at the horizontal ends of the U-shaped air inlet ducts are transversely penetrated and fixed with air collecting ducts, and the ends of the air collecting ducts close to the fan box extend into the connecting ring and face the fan box, and the bottom ends of the air collecting ducts are rotatably connected to a rotating shaft, and the top ends of the rotating shafts are circumferentially fixed with a group of No. 1 fan blades, and the bottom ends of the rotating shafts are circumferentially fixed with a group of No. 2 fan blades, and guide air collecting blocks are fixed in the air collecting ducts, and air outlets are provided on the sides close to the bottom ends of the two U-shaped air inlet ducts.

[0008] Preferably, one end of the air collecting duct away from the fan box is fixedly connected to a No. 1 dustproof net, and one end of the U-shaped air inlet duct located outside the cabinet is fixedly connected to a No. 2 dustproof net.

[0009] Preferably, a cleaning mechanism is provided on the outside of the cabinet, and the cleaning mechanism includes a driven shaft rotatably connected to the U-shaped air inlet pipe, a No. 1 bevel gear is fixedly connected to the outside of the rotating shaft, a No. 2 bevel gear is fixedly connected to the end of the driven shaft located in the U-shaped air inlet pipe, and the No. 1 bevel gear and the No. 2 bevel gear are meshed with each other, a No. 1 cleaning brush is fixedly connected to the end of the driven shaft away from the No. 2 bevel gear, a connecting shaft is fixedly connected to the bottom of the No. 2 dustproof net, and a No. 2 cleaning brush is fixedly connected to the bottom of the connecting shaft.

[0010] Preferably, the air collecting pipes are all heat-insulating pipes, and the bottom ends of the air collecting pipes are all fixedly connected with air collecting covers.

[0011] Preferably, a plurality of groups of heat-conducting rods are circumferentially fixed to the top of the cabinet, and the top and bottom ends of the heat-conducting rods extend to the top and bottom of the top of the cabinet, respectively.

[0012] Preferably, a disassembly and assembly mechanism is provided on the outside of the cabinet, and the disassembly and assembly mechanism includes heat dissipation ports opened on both sides of the cabinet, and side ports are opened on the sides away from each other of the two heat dissipation ports, and springs are fixed to the top and bottom ends of the sides away from each other of the two side ports, and the other end of each group of springs is commonly fixed to a connecting frame, and a No. 3 dustproof net is provided on the side away from each other of the two side ports, and blocks are provided on the top and bottom of the side ports, and the blocks are rotatably connected to the outside of the cabinet.

[0013] Beneficial effects:

[0014] Compared with the prior art, the switch cabinet with excellent heat dissipation performance for electrical engineering has the following beneficial effects:

[0015] 1. The utility model discharges the heat inside the cabinet upwards by rotating the fan inside the fan box, and part of the hot air enters the air collecting duct. Due to the design of the guide air collecting block, the space from one end of the guide air collecting block close to the fan box to the end away from the fan box gradually decreases. At this time, the flow speed of the hot air is accelerated, and the No. 1 fan blade is blown by the hot air, and the No. 1 fan blade drives the rotating shaft to rotate, and the rotating shaft drives the No. 2 fan blade to rotate. The cold air from the outside will be sucked into the U-shaped air inlet duct and then discharged from the air outlet at the bottom of the U-shaped air inlet duct. Since the two air outlets are opposite to each other, the blown cold air will collide with each other, thereby quickly diffusing the cold air into the cabinet, which is beneficial to accelerate the cooling of the inside of the cabinet, improve the heat dissipation efficiency, and avoid damage to electronic components.

[0016] 2. The utility model prevents foreign impurities such as leaves and dust from entering the cabinet through the design of the No. 1 dustproof net and the No. 2 dustproof net. The rotating shaft drives the No. 1 bevel gear to rotate, the No. 1 bevel gear drives the No. 2 bevel gear to rotate, the No. 2 bevel gear drives the driven shaft to rotate, and the driven shaft drives the No. 1 cleaning brush to rotate. During the rotation, the No. 1 cleaning brush will intermittently clean the outer surface of the No. 1 dustproof net, and the rotating shaft will drive the connecting shaft to rotate while rotating, and the connecting shaft will drive the No. 2 cleaning brush to rotate, and the No. 2 cleaning brush will clean the surface of the No. 2 dustproof net, so that the dust on the surfaces of the No. 1 and No. 2 dustproof nets can be cleaned in time, avoiding the No. 1 and No. 2 dustproof nets from being blocked by dust, affecting the air intake of the U-shaped air inlet duct and the air outlet of the air collecting duct, ensuring the air intake of the U-shaped air inlet duct, which is beneficial to improving the heat dissipation efficiency.

[0017] 3. The utility model facilitates heat dissipation of the cabinet through the heat dissipation port. The No. 3 dustproof net can prevent external dust from entering the cabinet. The stop block is rotated upward to separate the stop block from the No. 3 dustproof net. At this time, under the action of the spring tension, the connecting frame pops up, driving the No. 3 dustproof net to pop up. At this time, the No. 3 dustproof net is disassembled, thereby facilitating the cleaning and dust removal of the No. 3 dustproof net, preventing the No. 3 dustproof net from being blocked by dust and affecting the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the first three-dimensional structure of the utility model;

[0019] Figure 2 It is a second three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 4 It is a cross-sectional structural diagram of the heat dissipation mechanism in the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the wind guiding and gathering block in the utility model;

[0023] Figure 6 It is a cross-sectional structural diagram of the cleaning mechanism in the utility model;

[0024] Figure 7 It is an exploded schematic diagram of the disassembly and assembly mechanism in the utility model.

[0025] In the figure: 1. cabinet; 2. sealing door; 3. fan box; 4. heat dissipation mechanism; 40. connecting ring; 41. U-shaped air inlet pipe; 42. air collecting pipe; 43. rotating shaft; 44. fan blade No. 1; 45. fan blade No. 2; 46. guide air collecting block; 47. air outlet; 5. dust screen No. 1; 6. dust screen No. 2; 7. cleaning mechanism; 71. driven shaft; 72. bevel gear No. 1; 73. bevel gear No. 2; 74. cleaning brush No. 1; 75. connecting shaft; 76. cleaning brush No. 2; 8. air collecting cover; 9. heat conducting rod; 10. disassembly and assembly mechanism; 100. heat dissipation port; 101. side port; 102. spring; 103. connecting frame; 104. dust screen No. 3; 105. stop block. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] like Figure 1 to Figure 7As shown, a switch cabinet with excellent heat dissipation performance for electrical engineering includes a cabinet 1, and a sealed door 2 is provided on the front side of the cabinet 1. A plurality of groups of heat-conducting rods 9 are fixedly connected to the top of the cabinet 1 in a circumferential direction, and the top and bottom ends of the heat-conducting rods 9 extend to the top and bottom of the top of the cabinet 1 respectively. The design of the heat-conducting rods 9 can conduct a small amount of heat accumulated on both sides of the top of the cabinet 1 to the outside. A fan box 3 is fixedly connected to the top of the cabinet 1. The cabinet 1 is provided with a disassembly mechanism 10 on the outside. The disassembly mechanism 10 includes heat dissipation ports 100 opened on both sides of the cabinet 1. Side ports 101 are opened on the side away from the two heat dissipation ports 100. Springs 102 are fixedly connected to the top and bottom ends of the side away from the two side ports 101. The other end of each set of springs 102 is commonly fixedly connected to a connecting frame 103. No. 3 dust screens 104 are provided on the side away from the two side ports 101. Blocks 105 are provided on the top and bottom of the side ports 101, and the blocks 105 are rotatably connected to the cabinet 1. Outside; when working, the heat dissipation port 100 facilitates the heat dissipation of the cabinet 1, and the No. 3 dust screen 104 can prevent external dust from entering the cabinet 1. The block 105 is rotated upward to separate the block 105 from the No. 3 dust screen 104. At this time, under the action of the tension of the spring 102, the connecting frame 103 pops up, driving the No. 3 dust screen 104 to pop up. At this time, the No. 3 dust screen 104 is disassembled, so that it is convenient to clean and remove dust from the No. 3 dust screen 104, and prevent the No. 3 dust screen 104 from being blocked by dust and affecting the heat dissipation efficiency. A heat dissipation mechanism 4 is provided on the top of the cabinet 1;

[0028] The heat dissipation mechanism 4 includes a connecting ring 40 fixedly connected to the top of the cabinet 1, and U-shaped air inlet ducts 41 are fixedly connected to both sides of the top of the cabinet 1. The ends of the U-shaped air inlet ducts 41 located inside the cabinet 1 extend to the bottom of the cabinet 1, and the ends of the U-shaped air inlet ducts 41 located outside the cabinet 1 face downward. The tube bodies at the horizontal ends of the U-shaped air inlet ducts 41 are transversely penetrated and fixed with air collecting ducts 42, and the ends of the air collecting ducts 42 close to the fan box 3 extend into the connecting ring 40 and face the fan box 3. The bottom ends of the air collecting ducts 42 are rotatably connected to a rotating shaft 43, and the top ends of the rotating shafts 43 are circumferentially fixed with a group of No. 1 fan blades 44, and the bottom ends of the rotating shafts 43 are circumferentially fixed with a group of No. 2 fan blades 45. The air collecting pipes 42 are all heat-insulating pipes, and the bottom ends of the air collecting pipes 42 are all fixedly connected with air collecting covers 8. The air collecting pipes 42 are heat-insulating pipes, which can prevent heat from entering the U-shaped air inlet pipe 41 through the air collecting pipes 42, and the design of the air collecting covers 8 is conducive to increasing the air intake volume in the air collecting pipes 42, thereby increasing the rotation speed of the rotating shaft 43 and increasing the cold air intake volume in the U-shaped air inlet pipe 41. The air collecting pipes 42 are all fixedly connected with guide air collecting blocks 46, and the sides close to the bottom ends of the two U-shaped air inlet pipes 41 are provided with air outlets 47.

[0029] During operation, the fan inside the fan box 3 rotates to discharge the heat inside the cabinet 1 upwards. At this time, in the process of hot air being discharged upwards, part of the hot air will enter the air collecting duct 42 and then circulate in the air collecting duct 42. Due to the design of the guide air collecting block 46, the space of the guide air collecting block 46 from one end close to the fan box 3 to the end far away from the fan box 3 gradually decreases. At this time, the flow speed of the hot air is accelerated. Moreover, since the end of the guide air collecting block 46 with a smaller space points to one side of a group of No. 1 fan blades 44, the No. 1 fan blades 44 are When the hot air is blown, the fan blade No. 1 44 drives the rotating shaft 43 to rotate, and the rotating shaft 43 drives the fan blade No. 2 45 to rotate. During the rotation of the fan blade No. 2 45, the cold air from the outside will be sucked into the U-shaped air inlet pipe 41, and then discharged from the air outlet 47 at the bottom of the U-shaped air inlet pipe 41. Since the two air outlets 47 are opposite to each other, the blown cold air will collide with each other, thereby quickly diffusing the cold air into the cabinet 1, which is beneficial to accelerate the cooling of the interior of the cabinet 1, improve the heat dissipation efficiency, and avoid damage to electronic components.

[0030] One end of the air collecting duct 42 away from the fan box 3 is fixedly connected to a No. 1 dustproof net 5, and one end of the U-shaped air inlet duct 41 located outside the cabinet 1 is fixedly connected to a No. 2 dustproof net 6. The design of the No. 1 dustproof net 5 and the No. 2 dustproof net 6 prevents external impurities such as leaves and dust from entering the cabinet 1, thereby causing damage to electronic components. A cleaning mechanism 7 is provided on the outside of the cabinet 1, and the cleaning mechanism 7 includes a driven shaft 71 rotatably connected to the U-shaped air inlet pipe 41, and a first bevel gear 72 is fixedly connected to the outside of the rotating shaft 43, and a second bevel gear 73 is fixedly connected to the end of the driven shaft 71 located in the U-shaped air inlet pipe 41, and the first bevel gear 72 and the second bevel gear 73 are meshed, and a first cleaning brush 74 is fixedly connected to the end of the driven shaft 71 away from the second bevel gear 73, and a connecting shaft 75 is fixedly connected to the bottom end of the rotating shaft 43, and the bottom end of the connecting shaft 75 extends to the bottom of the second dustproof net 6, and a second cleaning brush 76 is fixedly connected to the bottom end of the connecting shaft 75.

[0031] The second cleaning brush 76 cleans the surface of the second dustproof net 6 when the rotating shaft 43 rotates, thereby preventing the first and second dustproof nets 5 and 6 from being blocked by dust, thereby affecting the air intake of the U-shaped air inlet 41 and the air outlet of the air collecting duct 42, thereby ensuring the air intake of the U-shaped air inlet 41 and improving the heat dissipation efficiency.

[0032] Working principle: the fan inside the fan box 3 rotates to discharge the heat inside the cabinet 1 upwards. At this time, in the process of hot air being discharged upwards, part of the hot air will enter the air collecting duct 42, and then circulate in the air collecting duct 42. Due to the design of the guide air collecting block 46, the space of the guide air collecting block 46 from one end close to the fan box 3 to the end far away from the fan box 3 gradually decreases. At this time, the flow speed of the hot air is accelerated, and because the end of the guide air collecting block 46 with a smaller space points to one side of a group of No. 1 fan blades 44, the No. 1 fan blades 44 are When the hot air is blown, the fan blade No. 1 44 drives the rotating shaft 43 to rotate, and the rotating shaft 43 drives the fan blade No. 2 45 to rotate. During the rotation of the fan blade No. 2 45, the cold air from the outside will be sucked into the U-shaped air inlet pipe 41, and then discharged from the air outlet 47 at the bottom of the U-shaped air inlet pipe 41. Since the two air outlets 47 are opposite to each other, the blown cold air will collide with each other, thereby quickly diffusing the cold air into the cabinet 1, which is beneficial to accelerate the cooling of the interior of the cabinet 1, improve the heat dissipation efficiency, and avoid damage to electronic components.

[0033] During the rotation of the rotating shaft 43, it will drive the No. 1 bevel gear 72 to rotate, the No. 1 bevel gear 72 will drive the No. 2 bevel gear 73 to rotate, the No. 2 bevel gear 73 will drive the driven shaft 71 to rotate, the driven shaft 71 will drive the No. 1 cleaning brush 74 to rotate, and the No. 1 cleaning brush 74 will intermittently clean the outer surface of the No. 1 dustproof net 5 during the rotation, and the rotating shaft 43 will drive the connecting shaft 75 to rotate while rotating, and the connecting shaft 75 will drive the No. 2 cleaning brush 76 to rotate, and the No. 2 cleaning brush 76 will clean the surface of the No. 2 dustproof net 6, so that the structure can clean the dust on the surface of the No. 1 dustproof net 5 and the No. 2 dustproof net 6 in time, avoid the No. 1 dustproof net 5 and the No. 2 dustproof net 6 being blocked by dust, affecting the air intake of the U-shaped air inlet pipe 41 and the air outlet of the air collecting pipe 42, ensuring the air intake of the U-shaped air inlet pipe 41, which is conducive to improving the heat dissipation efficiency.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A switch cabinet with excellent heat dissipation performance for electrical engineering, comprising a cabinet body (1), characterized in that: The front side of the cabinet (1) is provided with a sealed door (2), the top end of the cabinet (1) is fixedly connected with a fan box (3), and the top of the cabinet (1) is provided with a heat dissipation mechanism (4); The heat dissipation mechanism (4) comprises a connecting ring (40) fixedly connected to the top of the cabinet (1); both sides of the top of the cabinet (1) are fixedly connected to U-shaped air inlet pipes (41); the ends of the U-shaped air inlet pipes (41) located inside the cabinet (1) extend to the bottom of the cabinet (1); and the ends of the U-shaped air inlet pipes (41) located outside the cabinet (1) face downward; the pipe bodies of the horizontal ends of the U-shaped air inlet pipes (41) are transversely penetrated and fixedly connected to air collecting pipes (42); and the air collecting pipes (42) are close to the fan box. One end of each of the U-shaped air inlet pipes (41) extends into the connecting ring (40) and faces the fan box (3); the bottom end of each of the air collecting pipes (42) is rotatably connected to a rotating shaft (43); the top end of each of the rotating shafts (43) is circumferentially fixedly connected to a group of No. 1 fan blades (44); the bottom end of each of the rotating shafts (43) is circumferentially fixedly connected to a group of No. 2 fan blades (45); a guide air collecting block (46) is fixedly connected inside the air collecting pipe (42); and an air outlet (47) is provided on one side of the bottom ends of the two U-shaped air inlet pipes (41) that are close to each other.

2. A switch cabinet with excellent heat dissipation performance for electrical engineering according to claim 1, characterized in that: The end of the air collecting duct (42) away from the fan box (3) is fixedly connected to a first dustproof net (5), and the end of the U-shaped air inlet duct (41) located outside the cabinet (1) is fixedly connected to a second dustproof net (6).

3. A switch cabinet with excellent heat dissipation performance for electrical engineering according to claim 2, characterized in that: A cleaning mechanism (7) is provided on the outer side of the cabinet (1), and the cleaning mechanism (7) comprises a driven shaft (71) rotatably connected to the U-shaped air inlet pipe (41), a first bevel gear (72) is fixedly connected to the outer side of the rotating shaft (43), a second bevel gear (73) is fixedly connected to one end of the driven shaft (71) located in the U-shaped air inlet pipe (41), and the first bevel gear (72) and the second bevel gear (73) are meshed, a first cleaning brush (74) is fixedly connected to one end of the driven shaft (71) away from the second bevel gear (73), a connecting shaft (75) is fixedly connected to the bottom end of the rotating shaft (43), and the bottom end of the connecting shaft (75) extends to the bottom of the second dustproof net (6), and a second cleaning brush (76) is fixedly connected to the bottom end of the connecting shaft (75).

4. A switch cabinet with excellent heat dissipation performance for electrical engineering according to claim 1, characterized in that: The air collecting pipes (42) are all heat-insulating pipes, and the bottom ends of the air collecting pipes (42) are all fixedly connected with air collecting covers (8).

5. The switch cabinet with excellent heat dissipation performance for electrical engineering according to claim 1, characterized in that: A plurality of groups of heat-conducting rods (9) are fixedly connected to the top of the cabinet (1) in a circumferential direction, and the top and bottom ends of the heat-conducting rods (9) respectively extend to the top and bottom of the top of the cabinet (1).

6. A switch cabinet with excellent heat dissipation performance for electrical engineering according to claim 1, characterized in that: The outer side of the cabinet (1) is provided with a disassembly and assembly mechanism (10), the disassembly and assembly mechanism (10) comprises heat dissipation openings (100) opened on both sides of the cabinet (1), the two heat dissipation openings (100) are each provided with a side opening (101) on the side away from each other, the top and bottom ends of the two side openings (101) on the side away from each other are both fixedly connected with springs (102), the other end of each group of springs (102) is commonly fixedly connected with a connecting frame (103), the side away from each other of the two side openings (101) is each provided with a No. 3 dustproof net (104), the top and bottom of the side openings (101) are each provided with a stop block (105), and the stop block (105) is rotatably connected to the outer side of the cabinet (1).

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