A withdrawable switch cabinet with intelligent heat dissipation function

Abstract

The present invention relates to the technical field of switch cabinets, and in particular to a withdrawable switch cabinet with intelligent heat dissipation function, comprising a switch cabinet, a drawer cabinet movable in the switch cabinet, and a heat dissipation cabinet arranged on one side of the bottom of the switch cabinet, wherein a support frame is fixedly installed around the interior of the switch cabinet by bolts, and several groups of U-shaped mounting frames are fixedly installed on the switch cabinet in the width direction of the support frame by bolts, and several mounting holes for mounting the drawer cabinet are evenly opened on the U-shaped mounting frame, and rack plates are installed at the bottom of both sides of the drawer cabinet through side plates. The connecting rope in the T-shaped limit frame on the second gear of the present invention limits the drawer cabinet to move, avoiding the loss caused by the drawer cabinet being separated from the switch cabinet, and the second gear meshes to drive the heat dissipation fan on the first gear to rotate, so that the drawer cabinet can be ventilated in the process of entering and exiting the switch cabinet, realizing the linkage heat dissipation effect, and exchanging the heat accumulated inside the switch cabinet with the outside world.

Description

Technical Field

[0001] The invention relates to the technical field of switch cabinets, and in particular to a draw-out switch cabinet with intelligent heat dissipation function. Background Art

[0002] The drawer-type switchgear is a closed shell made of steel plates. The electrical components of the incoming and outgoing line circuits are installed in removable drawers to form functional units that can complete a certain type of power supply task. The functional units of the drawer-type switchgear are separated from the busbar or cable by a grounded metal plate or a functional board made of plastic, forming three areas: the busbar, the functional unit and the cable. There are also isolation measures between each functional unit. The drawer-type switchgear has high reliability, safety and interchangeability. It is a relatively advanced switchgear. Most of the switchgear produced are drawer-type switchgear. They are suitable for industrial and mining enterprises and high-rise buildings that require high power supply reliability as a centralized control distribution center.

[0003] During daily maintenance, it is easy for operators to pull out the drawer cabinet and bring the entire cabinet out of the switch cabinet, causing the drawer cabinet to detach from the switch cabinet and causing certain losses. It is difficult to limit the drawer cabinet, and the added drawer cabinet bracket makes the structure complicated, resulting in a smaller heat dissipation space. In addition, the heat dissipation inside the cabinet currently mainly relies on multiple sets of cooling fans on the side for heat dissipation. The heat dissipation capacity is relatively weak, which can easily cause circuit breakers and some switches to be damaged due to excessive temperature. The large number of cooling fans will generate heat themselves, causing internal temperature rise. In addition, the cooling fans are constantly exhausting or taking in air, which can easily accumulate dust inside, thereby affecting the operation of electrical equipment in the switch cabinet. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a withdrawable switch cabinet with intelligent heat dissipation function.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a switch cabinet, a drawer cabinet movable in the switch cabinet, and a heat dissipation cabinet arranged on one side of the bottom of the switch cabinet, wherein a support frame is fixedly installed around the inside of the switch cabinet by bolts, a plurality of groups of U-shaped mounting frames are fixedly installed on the switch cabinet in the width direction of the support frame by bolts, and a plurality of mounting holes for mounting the drawer cabinet are evenly opened on the U-shaped mounting frame, rack plates are installed at the bottom of both sides of the drawer cabinet through side plates, the heat dissipation cabinet is fixedly installed on the outer periphery of the switch cabinet away from the drawer cabinet by bolts, a heat dissipation cavity is arranged at the bottom of the inside of the switch cabinet, and heat dissipation components are arranged on both sides of the drawer cabinet on the U-shaped mounting frame, and the heat dissipation components include;

[0006] A cooling fan for cooling the inside of the switch cabinet, wherein a cooling bracket is fixedly installed on one side of the top of the U-shaped mounting frame by bolts, a bearing is fixedly installed at the center of the top of the cooling bracket by bolts, a cooling rod is fixedly installed at the central movable part of the bearing, and the cooling fan is installed at one end of the cooling rod;

[0007] a first gear for driving the cooling fan to rotate, the first gear being installed at the other end of the cooling rod, a rotating bracket being fixedly installed at the other side of the top of the U-shaped mounting frame by bolts, a rotating rod being connected to the center of the top of the rotating bracket by the bearing, and a second gear meshing with the first gear being fixedly installed at one end of the rotating rod by bolts;

[0008] A connecting rope for limiting and pulling the drawer cabinet, the other end of the rotating rod passes through the center of the second gear and is connected to a T-shaped limiting frame, the T-shaped limiting frame is fixed at the center of one side of the second gear, the connecting rope is wound in the T-shaped limiting frame, and the other end of the connecting rope is fixedly mounted on both ends of the push-pull plate of the drawer cabinet;

[0009] A refrigeration box is fixedly installed on the switch cabinet at the bottom center of the heat dissipation cavity by bolts, a refrigeration cylinder is fixedly installed at the top center of the refrigeration box by bolts, an L-shaped air inlet pipe is arranged at the inner center of the heat dissipation cabinet, and L-shaped air outlet pipes are arranged on both sides of the air inlet pipe in the heat dissipation cabinet.

[0010] As a preferred technical solution of the present invention, the refrigeration box is filled with refrigerant, a refrigerator for cooling the refrigerant is fixedly installed at the bottom of one side of the refrigeration box by bolts, one end of the bottom of the L-shaped air inlet pipe is connected to the center of one end of the refrigeration cylinder, and a fan is installed on one side of the L-shaped air inlet pipe located on the refrigeration cylinder;

[0011] The bottom end of the L-shaped air outlet pipe is connected to the center of both sides of the other end of the refrigeration cylinder, and a plurality of conduction plates are evenly installed on the inner top of the refrigeration box by bolts. A plurality of S-shaped heat conductive wires are evenly installed inside the refrigeration cylinder on the refrigeration box, and the bottom end of the S-shaped heat conductive wire is connected to the top of the conduction plate. The L-shaped air inlet pipe and the L-shaped air outlet pipe are connected to a guide pipe on one side of the interior of each drawer cabinet.

[0012] As a preferred technical solution of the present invention, the second gear is meshedly connected with the rack plate, and the diameter of the second gear is between 3 and 5 times the diameter of the first gear. The inner bottom end of the U-shaped mounting frame is connected to a drawer bottom frame through a mounting hole. The drawer bottom frame is a U-shaped structure. Ventilation holes are evenly arranged at the center of the drawer bottom frame. Roller grooves are arranged at both ends of one side of the top of the drawer bottom frame. Rollers that match the size of the roller grooves are installed at the bottom of one end of the drawer cabinet, and the rollers are movable in the roller grooves. Heat dissipation holes are arranged on both sides of the switch cabinet body. A fine dustproof mesh cover is fixedly installed on the switch cabinet body on the outside of the heat dissipation holes by bolts, and the cooling fan is aligned with one side of the fine dustproof mesh cover.

[0013] As a preferred technical solution of the present invention, the drawer cabinet includes a drawer frame and a pull-out plate at one end of the drawer cabinet, and both ends of one inner side of the drawer cabinet are provided with an outgoing line dynamic plug-in and an incoming line dynamic plug-in, a secondary plug-in is installed at one end of the drawer cabinet by bolt inlay, and a handle, an operating handle, an instrument panel and a door lock installed on the drawer cabinet are provided on one side of the pull-out plate of the drawer cabinet, a baffle is connected to the bottom side of the heat dissipation cavity on the switch cabinet body through a hinge joint, and the baffle is located on the side of the switch cabinet body away from the heat dissipation cabinet, and a handle is fixedly installed at the center of the top side of the baffle by bolts.

[0014] As a preferred technical solution of the present invention, the conduction plate and the S-shaped heat-conducting wire are both copper structures with good thermal conductivity, the bottom of the conduction plate is immersed in the coolant in the refrigeration box, the S-shaped heat-conducting wire is evenly distributed at both ends of the interior of the refrigeration cylinder, the drawer cabinets are movably arranged in the switch cabinet, and a single switch cabinet is provided with six groups of drawer cabinets located on the top side of the heat dissipation cavity, and the refrigeration box in the heat dissipation cavity is provided with a conduit with a rubber plug for liquid inlet and outlet.

[0015] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0016] 1. The rack plate is meshed with the second gear, so that the drawer cabinet and the switch cabinet are stably connected and installed. The connecting rope in the T-shaped limit frame on the second gear limits the drawer cabinet to avoid the loss caused by the drawer cabinet being separated from the switch cabinet.

[0017] 2. When the drawer cabinet is in and out, the second gear on the rack plate is driven to rotate, and the second gear is engaged to drive the cooling fan on the first gear to rotate, so that the drawer cabinet can ventilate the inside when entering and exiting the switch cabinet, realize the linkage heat dissipation effect, and exchange the heat accumulated inside the switch cabinet with the outside world.

[0018] 3. The cooling fan is accelerated by the number of gears of the first gear and the second gear. The rack plate drives the second gear to rotate when the drawer cabinet moves in and out. The second gear accelerates the cooling fan through the first gear to improve the internal heat dissipation effect and realize the exchange and cooling of internal hot air.

[0019] 4. The heat in the switch cabinet is exchanged through the L-shaped air inlet pipe and the L-shaped air outlet pipe. The heat is input into the refrigeration cylinder through the L-shaped air inlet pipe, and the cold air is discharged to both sides of the drawer cabinet through the L-shaped air outlet pipe to achieve stable heat dissipation and cooling in the switch cabinet.

[0020] 5. The heat is transferred to the refrigeration cylinder through the L-shaped air inlet pipe, and the heat is absorbed by the S-shaped heat conductive wire in the refrigeration cylinder. The S-shaped heat conductive wire further inputs the heat into the conduction plate of the coolant to achieve cooling. At the same time, the cold air of the coolant enters the S-shaped heat conductive wire through the conduction plate, and the cold air is transported to the L-shaped air outlet pipe to achieve stable performance of heat exchange.

[0021] 6. A single refrigeration box is used to achieve heat dissipation for multiple groups of drawer cabinets. The heat dissipation is stable and there is no additional heating burden on the switch cabinet. The electrical structure inside the drawer cabinet improves the connection stability of the switch cabinet circuit. The drawer cabinet's in-and-out heat dissipation, ventilation and separation protection performance are linked, and the structure is ingenious. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic three-dimensional diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic three-dimensional diagram of the overall internal structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 Schematic diagram of the internal structure of the medium heat dissipation cabinet;

[0025] Figure 4 For the present invention Figure 2 Schematic diagram of the structure of the middle drawer cabinet;

[0026] Figure 5 For the present invention Figure 2 Schematic diagram of the connection structure of the middle drawer cabinet;

[0027] Figure 6 For the present invention Figure 4 A schematic three-dimensional diagram of the cooling fan connection structure;

[0028] Figure 7 For the present invention Figure 6 A schematic three-dimensional diagram of the second gear connection structure;

[0029] Figure 8 For the present invention Figure 7A schematic three-dimensional diagram of the first gear connection structure;

[0030] Fig. 9 For the present invention Figure 4 Schematic diagram of the internal structure of the middle drawer cabinet;

[0031] Fig.10 For the present invention Figure 3 A schematic three-dimensional diagram of the internal structure of the intermediate cold box;

[0032] Fig.11 For the present invention Figure 5 Schematic diagram of the middle drawer chassis structure.

[0033] Among them: 10, switch cabinet; 11, support frame; 12, heat dissipation holes; 13, fine dustproof mesh cover; 14, baffle; 20, drawer cabinet; 21, rack plate; 22, connecting rope; 23, T-type limit frame; 24, outgoing line dynamic plug-in; 25, incoming line dynamic plug-in; 26, secondary plug-in; 30, heat dissipation cabinet; 31, heat dissipation cavity; 32, refrigeration box; 33, refrigeration cylinder; 34, L-type air inlet pipe; 35, L-type air outlet pipe; 36, fan; 37, conduction plate; 38, S-type thermal wire; 39, guide tube; 40, U-type mounting frame; 41, mounting holes; 42, cooling fan; 43, cooling bracket; 44, bearing; 45, cooling rod; 46, first gear; 47, rotating bracket; 48, rotating rod; 49, second gear; 50, drawer bottom frame; 51, ventilation hole; 52, roller groove; 53, roller. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0035] Embodiment: Figure 1 , Figure 2 , Figure 5 , Figure 6 , Fig. 9 and Fig.10As shown, it includes a switch cabinet 10, a drawer cabinet 20 movable in the switch cabinet 10, and a heat dissipation cabinet 30 arranged on one side of the bottom of the switch cabinet 10. The switch cabinet 10 is fixed with a support frame 11 by bolts around the inside, so that the internal electrical equipment can be easily installed. A plurality of groups of U-shaped mounting frames 40 are fixed with bolts in the width direction of the support frame 11 on the switch cabinet 10, and a plurality of mounting holes 41 for mounting the drawer cabinet 20 are evenly opened on the U-shaped mounting frame 40. The mounting holes 41 are convenient for the combined installation of the equipment. Rack plates 21 are installed at the bottom of both sides of the drawer cabinet 20 through side plates. The heat dissipation cabinet 30 is fixed with bolts on the outer periphery of the side away from the drawer cabinet 20 on the switch cabinet 10. A heat dissipation cavity 31 is arranged at the bottom of the switch cabinet 10, and the heat dissipation effect is stable. Heat dissipation components are arranged on both sides of the drawer cabinet 20 on the U-shaped mounting frame 40, and the heat dissipation components include;

[0036] A heat dissipation fan 42 is used to dissipate heat and blow air inside the switch cabinet 10. The heat dissipation fan 42 is used to realize air inlet and outlet to improve the purpose of air circulation. A heat dissipation bracket 43 is fixedly installed on one side of the top of the U-shaped mounting frame 40 by bolts. A bearing 44 is fixedly installed at the center of the top of the heat dissipation bracket 43 by bolts. A heat dissipation rod 45 is fixedly installed at the central movable part of the bearing 44, so that the heat dissipation rod 45 can stably rotate on the bearing 44, and the structure is stable. The heat dissipation fan 42 is installed at one end of the heat dissipation rod 45 for heat dissipation;

[0037] A first gear 46 is used to drive the cooling fan 42 to rotate. The other end of the cooling rod 45 is equipped with the first gear 46. A rotating bracket 47 is fixedly installed on the other side of the top of the U-shaped mounting frame 40 by bolts. A rotating rod 48 is connected to the center of the top of the rotating bracket 47 through a bearing 44. A second gear 49 meshing with the first gear 46 is fixedly installed on one end of the rotating rod 48 by bolts. The entry and exit of the drawer cabinet 20 drives the gear to rotate.

[0038] The connecting rope 22 is used to limit the pull of the drawer cabinet 20. The other end of the rotating rod 48 passes through the center of the second gear 49 and is connected to a T-shaped limit frame 23. The T-shaped limit frame 23 is fixed at the center of one side of the second gear 49. The connecting rope 22 is wound in the T-shaped limit frame 23, and the other end of the connecting rope 22 is fixedly installed on the two ends of the push-pull plate of the drawer cabinet 20. The connecting rope 22 is released and stored by using the T-shaped limit frame 23 that rotates in and out, so as to provide a good protection effect for the drawer cabinet 20.

[0039] A refrigeration box 32 is fixedly installed on the switch cabinet body 10 at the bottom center of the heat dissipation cavity 31 by bolts, and a refrigeration cylinder 33 is fixedly installed at the top center of the refrigeration box 32 by bolts. An L-shaped air inlet pipe 34 is arranged at the inner center of the heat dissipation cabinet 30, and L-shaped air outlet pipes 35 are arranged on both sides of the air inlet pipe in the heat dissipation cabinet 30, thereby realizing stable inflow and outflow of gas.

[0040] See also Figure 2 , Figure 3 and Fig.10 The refrigeration box 32 is filled with refrigerant, and a refrigerator for cooling the refrigerant is fixedly installed at the bottom of one side of the refrigeration box 32 by bolts to keep the internal temperature low. The bottom end of the L-shaped air inlet pipe 34 is connected to the center of one end of the refrigeration cylinder 33, and the L-shaped air inlet pipe 34 is installed with a fan 36 on one side of the refrigeration cylinder 33 to bring hot air into the cooling link;

[0041] The bottom end of the L-shaped air outlet pipe 35 is connected to the center of both sides of the other end of the refrigeration cylinder 33. A plurality of conduction plates 37 are evenly installed on the inner top of the refrigeration box 32 by bolts. A plurality of S-shaped heat conductive wires 38 are evenly installed in the interior of the refrigeration cylinder 33 on the refrigeration box 32, and the bottom end of the S-shaped heat conductive wire 38 is connected to the top of the conduction plate 37 to realize the exchange of heat and cold air, cool the incoming hot air, and discharge the cooled cold air. The L-shaped air inlet pipe 34 and the L-shaped air outlet pipe 35 are connected to a guide pipe 39 on one side of the interior of each drawer cabinet 20 to realize the stable discharge of hot and cold air.

[0042] See also Figure 1 , Figure 5 , Figure 6 and Fig.11 , the second gear 49 is meshedly connected with the rack plate 21, and the diameter of the second gear 49 is between 3 times and 5 times the diameter of the first gear 46, so as to realize the gear difference, and then the large gear is rotated to accelerate the rotation of the small gear, so as to improve the heat dissipation effect, and the drawer bottom frame 50 is connected to the inner bottom end of the U-shaped mounting frame 40 through the mounting hole 41, and the drawer bottom frame 50 is U-shaped. Ventilation holes 51 are evenly provided at the center of the drawer bottom frame 50, and roller grooves 52 are provided at both ends of one side of the top of the drawer bottom frame 50, and rollers 53 matching the size of the roller grooves 52 are installed at the bottom of one end of the drawer cabinet 20, and the rollers 53 are all movable in the roller grooves 52, and the drawer cabinet 20 moves stably in and out of the switch cabinet 10, and heat dissipation holes 12 are provided on both sides of the switch cabinet 10, and a fine dustproof mesh cover 13 is fixedly installed on the switch cabinet 10 on the outside of the heat dissipation hole 12 by bolts, and the heat dissipation fan 42 is aligned with one side of the fine dustproof mesh cover 13, so as to have a good heat dissipation effect.

[0043] See also Figure 4 and Fig. 9The drawer cabinet 20 includes a drawer frame and a pull-out plate at one end of the drawer cabinet 20. Outlet moving plug-ins 24 and inlet moving plug-ins 25 are provided at both ends of one side of the interior of the drawer cabinet 20. A secondary plug-in 26 is installed at one end of the drawer cabinet 20 by bolt inlaying, and a handle, an operating handle, an instrument panel and a door lock installed on the drawer cabinet 20 are provided on one side of the pull-out plate of the drawer cabinet 20. A baffle 14 is connected to the bottom side of the heat dissipation cavity 31 on the switch cabinet 10 through a hinge joint, and the baffle 14 is located on the side of the switch cabinet 10 away from the heat dissipation cabinet 30. A handle is fixed at the center of the top side of the baffle 14 by bolts. The entire drawer cabinet achieves a stable operation connection of the circuit, a stable and simple structure, and strong convenient use performance.

[0044] See also Figure 2 , Figure 3 and Fig.10 The conductive plate 37 and the S-shaped heat-conducting wire 38 are both made of copper with good thermal conductivity. The bottom of the conductive plate 37 is immersed in the coolant in the refrigeration box 32. The S-shaped heat-conducting wire 38 is evenly distributed at both ends of the inside of the refrigeration cylinder 33, and has a good temperature conduction effect. The drawer cabinets 20 are all movably arranged in the switch cabinet 10. Six groups of drawer cabinets 20 are arranged on one side of the top of the heat dissipation cavity 31 in a single switch cabinet 10, and the heat dissipation performance is good. The refrigeration box 32 in the heat dissipation cavity 31 is provided with a conduit with a rubber plug for liquid inlet and outlet, which is convenient for cooling and cooling.

[0045] Working principle: inject coolant into the refrigeration box 32 through the conduit, use the outer refrigerator to achieve the cooling effect, install the U-shaped mounting frame 40 to the support frame 11 on the switch cabinet 10 through the mounting hole 41, and then fix the drawer bottom frame 50 to the U-shaped mounting frame 40 through the mounting hole 41, install the rack plate 21 on both sides of the drawer cabinet 20 by bolts, assemble the heat dissipation component on the U-shaped mounting frame 40, install the heat dissipation bracket 43 and the rotating bracket 47, and install the heat dissipation bracket 43 and the rotating bracket 47 on the drawer bottom frame 50. Inserted into the drawer cabinet 20, at this time, the rack plate 21 is also meshed and connected with the second gear 49, and the connecting rope 22 on the T-shaped limit frame 23 is installed on the push-pull plate on the drawer cabinet 20 to achieve movable limit, and the L-shaped air inlet pipe 34 brings the heat on each layer of the drawer cabinet 20 into the refrigeration cylinder 33 through the fan 36, and the heat dissipation and cooling are achieved through the S-shaped heat conductive wire 38 and the conductive plate 37 in the refrigeration cylinder 33, so that the L-shaped air inlet pipe 34 discharges cold air to the outside of the drawer cabinet 20 on each layer, achieving a stable circulation cooling effect;

[0046] During routine inspection and maintenance, when the drawer cabinet 20 is pulled out, the rack plate 21 and the second gear 49 rotate, and the connecting rope 22 in the T-shaped limit frame 23 is rotated to release the rope, and the rope is released while being pulled out to prevent the drawer cabinet 20 from being separated from the switch cabinet 10. When the drawer cabinet 20 is pushed in, the T-shaped limit frame 23 is reversed so that the connecting rope 22 is rewound after being reset;

[0047] When the entire drawer cabinet 20 is moved in and out, the second gear 49 engages to drive the first gear 46 to accelerate the rotation. When the drawer cabinet 20 is pulled out, the cooling fan 42 on the first gear 46 extracts the internal heat for heat dissipation. When the drawer cabinet 20 is pushed in, the cooling fan 42 on the second gear 49 draws outside air into the switch cabinet 10, accelerates the flow of internal hot air, and improves the heat dissipation effect.

[0048] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A drawable switch cabinet with intelligent heat dissipation function, comprising a switch cabinet body (10), a drawer cabinet (20) movable in the switch cabinet body (10), and a heat dissipation cabinet (30) arranged on one side of the bottom of the switch cabinet body (10), characterized in that: The switch cabinet (10) is fixedly provided with a support frame (11) by bolts on the inner periphery thereof; a plurality of groups of U-shaped mounting frames (40) are fixedly provided on the switch cabinet (10) in the width direction of the support frame (11) by bolts; and a plurality of mounting holes (41) for mounting the drawer cabinet (20) are evenly provided on the U-shaped mounting frames (40); rack plates (21) are installed at the bottom of both sides of the drawer cabinet (20) by side plates; the heat dissipation cabinet (30) is fixedly provided on the outer periphery of the switch cabinet (10) on the side away from the drawer cabinet (20) by bolts; a heat dissipation cavity (31) is provided at the inner bottom of the switch cabinet (10); and heat dissipation components are provided on both sides of the drawer cabinet (20) on the U-shaped mounting frames (40); and the heat dissipation components include; a cooling fan (42) for dissipating heat and blowing air inside the switch cabinet (10); a cooling bracket (43) is fixedly mounted on one side of the top of the U-shaped mounting frame (40) by means of bolts; a bearing (44) is fixedly mounted at the center of the top of the cooling bracket (43) by means of bolts; a cooling rod (45) is fixedly mounted at the movable center of the bearing (44); and the cooling fan (42) is mounted on one end of the cooling rod (45); a first gear (46) for driving the cooling fan (42) to rotate, the first gear (46) being mounted on the other end of the cooling rod (45), a rotating bracket (47) being fixedly mounted on the other side of the top of the U-shaped mounting frame (40) by means of bolts, a rotating rod (48) being connected to the center of the top of the rotating bracket (47) by means of the bearing (44), and a second gear (49) being meshed with the first gear (46) being fixedly mounted on one end of the rotating rod (48) by means of bolts; a connecting rope (22) for limiting and pulling the drawer cabinet (20); the other end of the rotating rod (48) passes through the center of the second gear (49) and is connected to a T-shaped limiting frame (23); the T-shaped limiting frame (23) is fixed at the center of one side of the second gear (49); the connecting rope (22) is wound around the T-shaped limiting frame (23); and the other end of the connecting rope (22) is fixedly mounted on two ends of the push-pull plate of the drawer cabinet (20); A refrigeration box (32) is fixedly mounted on the switch cabinet (10) at the bottom center of the heat dissipation cavity (31) by means of bolts, a refrigeration cylinder (33) is fixedly mounted at the top center of the refrigeration box (32) by means of bolts, an L-shaped air inlet pipe (34) is arranged at the inner center of the heat dissipation cabinet (30), and L-shaped air outlet pipes (35) are arranged on both sides of the air inlet pipe in the heat dissipation cabinet (30).

2. The withdrawable switch cabinet with intelligent heat dissipation function according to claim 1, characterized in that: The second gear (49) is meshingly connected to the rack plate (21), and the diameter of the second gear (49) is between 3 and 5 times the diameter of the first gear (46).

3. The withdrawable switch cabinet with intelligent heat dissipation function according to claim 1, characterized in that: The refrigeration box (32) is filled with refrigeration liquid, a refrigerator for refrigerating the refrigeration liquid is fixedly installed at the bottom of one side of the refrigeration box (32) by bolts, one end of the bottom of the L-shaped air inlet pipe (34) is connected to the center of one end of the refrigeration cylinder (33), and a fan (36) is installed on one side of the L-shaped air inlet pipe (34) located on the refrigeration cylinder (33); The bottom end of the L-shaped air outlet pipe (35) is connected to the center of both sides of the other end of the refrigeration cylinder (33); a plurality of conductive plates (37) are evenly installed on the top of the interior of the refrigeration box (32) by bolts; a plurality of S-shaped heat conductive wires (38) are evenly installed on the refrigeration box (32) inside the refrigeration cylinder (33); and the bottom end of the S-shaped heat conductive wire (38) is connected to the top of the conductive plate (37); and the L-shaped air inlet pipe (34) and the L-shaped air outlet pipe (35) are connected to a guide pipe (39) on one side of the interior of each drawer cabinet (20).

4. The withdrawable switch cabinet with intelligent heat dissipation function according to claim 1, characterized in that: The inner bottom end of the U-shaped mounting frame (40) is connected to a drawer bottom frame (50) through a mounting hole (41); the drawer bottom frame (50) is a U-shaped structure; ventilation holes (51) are evenly arranged at the center of the drawer bottom frame (50); roller grooves (52) are arranged at both ends of one side of the top of the drawer bottom frame (50); a roller (53) matching the size of the roller groove (52) is installed at the bottom of one end of the drawer cabinet (20); and the roller (53) moves in the roller groove (52).

5. The withdrawable switch cabinet with intelligent heat dissipation function according to claim 1, characterized in that: Heat dissipation holes (12) are provided on both sides of the switch cabinet (10), a fine dustproof mesh cover (13) is fixedly mounted on the switch cabinet (10) on the outside of the heat dissipation holes (12) by means of bolts, and the heat dissipation fan (42) is aligned with one side of the fine dustproof mesh cover (13).

6. The withdrawable switch cabinet with intelligent heat dissipation function according to claim 1, characterized in that: The drawer cabinet (20) comprises a drawer frame and a pull-out plate at one end of the drawer cabinet (20), an outgoing line moving plug-in (24) and an incoming line moving plug-in (25) are arranged at both ends of one side of the interior of the drawer cabinet (20), a secondary plug-in (26) is installed at one end of the drawer cabinet (20) by bolt inlay, and a handle, an operating handle, a dashboard and a door lock installed on the drawer cabinet (20) are arranged on one side of the pull-out plate of the drawer cabinet (20).

7. The withdrawable switch cabinet with intelligent heat dissipation function according to claim 1, characterized in that: A baffle (14) is connected to the switch cabinet (10) at one side of the bottom of the heat dissipation cavity (31) via a hinge joint, and the baffle (14) is located on a side of the switch cabinet (10) away from the heat dissipation cabinet (30), and a handle is fixedly mounted at the center of one side of the top of the baffle (14) via bolts.

8. The withdrawable switch cabinet with intelligent heat dissipation function according to claim 3, characterized in that: The conduction plate (37) and the S-shaped heat-conducting wire (38) are both copper structures with good thermal conductivity. The bottom of the conduction plate (37) is immersed in the coolant in the refrigeration box (32), and the S-shaped heat-conducting wire (38) is evenly distributed at both ends inside the refrigeration cylinder (33).

9. The withdrawable switch cabinet with intelligent heat dissipation function according to claim 1, characterized in that: The drawer cabinets (20) are all movably arranged in the switch cabinet (10), and a single switch cabinet (10) is provided with six groups of drawer cabinets (20) located on one side of the top of the heat dissipation cavity (31), and the refrigeration box (32) in the heat dissipation cavity (31) is provided with a conduit with a rubber plug for liquid inlet and outlet.

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