An electrical distribution cabinet capable of defrosting

Abstract

The present invention discloses an electrical distribution cabinet capable of defrosting, comprising a cabinet body, the cabinet body bottom plate serving as a partition, a heating assembly disposed on the cabinet body, and a defrosting assembly disposed on the four inner walls of the cabinet body, the heating assembly being connected to the defrosting assembly. The heating assembly comprises a heating pipe and a gas hose, the heating pipe being disposed at the bottom of the partition, a gas hole being disposed at each of the four corners of the partition, a hollow column being integrally provided at the gas hole and the partition, a gas hose being sealed and connected through the top of the hollow column, one end of the gas hose being connected to the defrosting assembly via a negative pressure assembly. The distribution cabinet scrapes and effectively cleans frost adhering to the inner walls of the electrical distribution cabinet, thereby improving defrosting efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of horizontal electrical distribution cabinet equipment, and in particular to an electrical distribution cabinet capable of defrosting. Background Art

[0002] Electrical distribution cabinets are essential for high and low voltage power distribution, and are widely used in various power transmission and distribution fields, as well as in electronic control. Numerous electrical components, such as relays, circuit breakers, switchgear, measuring instruments, protective devices, and auxiliary equipment, are installed within these cabinets. These components are assembled within enclosed or semi-enclosed metal cabinets or on screens to form low-voltage distribution boxes. During normal operation, these cabinets can connect and disconnect circuits using manual or automatic switches.

[0003] Power distribution cabinets are characterized by easy installation, exceptional technical performance, fixed location, unique configuration features, and site-independent functionality. They are widely used, stable and reliable, highly efficient, and environmentally friendly. They serve as the control center for the rational distribution of power among the various components in the power supply circuit. They are the link that reliably receives power from upstream sources and accurately feeds power to loads, and are crucial for ensuring user satisfaction with power supply quality. Improving the operational reliability of power distribution cabinets is a crucial component of creating high-quality power projects.

[0004] As we all know, air contains heat, generated by solar radiation. Temperature fluctuations vary greatly with the seasons, which can also affect the efficiency of air-energy water heaters. Generally speaking, in areas with an average temperature of -25°C to -30°C, the unit will automatically shut down when the minimum temperature is exceeded. However, in some areas, winter temperatures generally exceed -30°C, and the unit cannot operate normally. Excessively low temperatures can cause frost to form on the air-energy fin heat exchanger, hindering the evaporating gas from absorbing heat from the air, reducing the evaporator's ability to absorb energy, and directly affecting the user's heating area and causing the unit to stop operating. Summary of the Invention

[0005] The present invention aims to provide an electrical distribution cabinet capable of defrosting, which solves the problem of frosting in the distribution cabinet.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] An electrical distribution cabinet capable of defrosting comprises a cabinet body, wherein the cabinet body bottom plate is a partition, a heating component is provided on the cabinet body, and a defrosting component is provided on the four inner walls of the cabinet body, wherein the heating component is in communication with the defrosting component;

[0008] The heating assembly includes a heating pipe and a gas hose. The heating pipe is arranged at the bottom of the partition. A gas hole is provided at each of the four corners of the partition. A hollow column is provided at the gas hole and integrated with the partition. A gas hose is sealed and connected to the top of the hollow column. One end of the gas hose is connected to the defrost assembly through a negative pressure assembly.

[0009] The defrost assembly includes a power unit, a transmission unit, a lifting unit and multiple defrost units. The power unit is fixedly installed on the outside of the cabinet side panel, the transmission unit is installed at the output end of the power unit, and multiple defrost units are installed on both sides of the output end of the transmission unit. The multiple defrost units are connected by two-phase connecting blocks to form a closed loop fixed on the four inner walls of the cabinet. The defrost unit rises and falls in the cabinet through the lifting unit.

[0010] Preferably, a drainage hole is provided at the bottom of the side panel of the cabinet.

[0011] Preferably, the power unit includes a casing and a motor, the casing is installed outside the cabinet side panel, and the motor is installed inside the casing.

[0012] Preferably, the transmission part includes a bidirectional threaded rod, a moving block and a connecting block 1. The bidirectional threaded rod is fixedly connected to the output end of the motor. The moving block is installed on the bidirectional threaded rod. The connecting block 1 is fixedly connected to one side of the moving block. A defrost part is connected to both sides of the connecting block 1.

[0013] Preferably, the defrost part includes a rotating shaft, a support frame, a sliding block, a push plate, a disc and a blade, the rotating shaft is rotatably connected between two adjacent connecting blocks or between the connecting block 2 and the adjacent connecting block, the support frame spans between two adjacent connecting blocks or between the connecting block 2 and the adjacent connecting block, and is located above the rotating shaft, the sliding block is sleeved on the support frame, and a limiting groove is obliquely provided at the bottom of the support frame, a disc is obliquely installed on the rotating shaft, and the top of the disc is clamped in the limiting groove, a push plate is hinged on one side of the sliding block, and the angle is controlled by the pulling part, and a blade is movably installed on the top of the push plate through an adjusting component, the push plate is a cavity structure, and a plurality of mounting grooves are opened on the top of the push plate.

[0014] Preferably, the lifting part includes a rack and a gear, the gear is installed on the rotating shaft, the rack is vertically installed on the inner wall of the cabinet, and the rack and the gear are meshed.

[0015] Preferably, the pulling part includes a spring, a ratchet gear and a pull rod, the spring is pulled between the sliding block and the push plate, the ratchet gear is fixedly installed on the rotating shaft, the pull rod is a curved rod structure made by bending an elastic steel rod, and a top foot is provided at the inner bend of the curved rod structure. One end of the pull rod is hinged to the push plate, and the other end of the pull rod is hooked and hooked on the teeth of the ratchet gear, and the top foot is pressed against the stepped structure provided on one side of the sliding block.

[0016] Preferably, the negative pressure assembly includes a fixed rod, a fixed block, fan blades and a round rod, the fixed block is arranged on the sliding block, the fixed block is a closed cavity structure, the fixed rod is vertically installed on one end of the support frame, the round rod is rotatably installed on the fixed rod, the cantilever end of the round rod penetrates into the fixed block and is fixedly installed with fan blades, a fixed cylinder is coaxially installed at the penetration point of the round rod on the fixed block, one end of the air supply hose is connected to the fixed block, and the fixed block is connected to the push plate through a connecting pipe, and a limiting rod is fixedly installed on the round rod located in the fixed block, and the limiting rod slides along the arc groove set in the fixed cylinder.

[0017] Preferably, the adjustment assembly includes two telescopic rods and a cross rod, the two telescopic rods are hinged on both sides of the support frame, a cross rod is connected to the top of the two telescopic rods, and the cross rod is arranged in the cavity of the push plate; a plurality of vertical rods are evenly spaced vertically on the cross rod, and the blade is movably connected to the vertical rod, and the blade is adjusted to the mounting groove by the telescopic rod.

[0018] Preferably, a notch is provided on one side of the blade for avoiding the cross bar, an upper mounting groove is provided on the top surface of the notch, and a lower mounting groove is provided on the bottom surface of the notch, the upper mounting groove and the lower mounting groove are arranged opposite to each other, and the vertical rod is movably installed in the upper mounting groove and the lower mounting groove.

[0019] In the present invention, the heating tube is turned on when in use, and the heat generated by the heating tube heats up the inside of the cabinet, and then the motor is turned on to drive the bidirectional threaded rod to rotate. As the bidirectional threaded rod rotates, the moving block drives the connecting block 1 to move up and down synchronously. Since the connecting block 1 is connected to the rotating shaft, and the rotating shaft is connected to the connecting block 2, the connecting block 1 drives the rotating shaft to move up and down when it moves up and down, so that the rotating shaft drives the support frame connected to the top of the connecting block 2 to move up and down during the up and down movement, and the support frame drives the push plate to move up and down. During the sliding process, the push plate contacts the frost on the inner wall of the electrical distribution cabinet to frost it. Scratch cleaning, as the rotating shaft moves up and down, the rotating shaft drives the gear to move up and down, because the gear is meshed with the rack, the gear rotates, and the gear drives the rotating shaft to rotate. As the rotating shaft drives the disc to rotate, the disc pushes the limit slot at the bottom of the sliding block to move, thereby driving the sliding block to move back and forth laterally on the outer surface of the support frame, and then causing the push plate to slide laterally during the up and down movement, so that the push plate scrapes the frost attached to the inner wall of the electrical distribution cabinet from four directions of up, down, left and right, thereby effectively cleaning the frost attached to the inner wall of the electrical distribution cabinet and enhancing the defrosting efficiency.

[0020] As the rotating shaft rotates, the rotating shaft drives the ratchet gear to rotate. Because the end of the pull rod close to the ratchet gear is hook-shaped and contacts the ratchet gear, when the ratchet gear rotates, the ratchet gear drives the push plate to flip away from the inner wall of the cabinet through the pull rod. The spring is compressed to generate a compression force. As the ratchet gear continues to rotate, the end of the pull rod is away from the teeth of the ratchet gear. The compression force generated by the spring pushes the push plate to reset. Under the continuous rotation of the ratchet gear, the push plate intermittently moves away from the frost attached to the inner wall of the cabinet, thereby knocking the frost, accelerating the shedding of the frost, and thus speeding up the frost cleaning efficiency.

[0021] There are multiple blades rotatably set on the top of the push plate. When the sliding block drives the push plate to move horizontally, the push plate slides on the surface of the cross bar, and the cross bar pushes the blades to rotate. Some frost clumps have a larger area and a smoother surface. Because the contact area between the blade and the frost is smaller, it can be effectively scraped and cleaned. The heat inside the push plate is blown to the surface of the frost through the notch opened in the push plate. The angle between the blade and the notch opened in the push plate changes continuously with the swing of the blade, so that the heat follows the swing when passing through the notch. Therefore, the area of ​​frost covered by heat increases, thereby accelerating the melting of the frost. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 2 It is a partial cutaway schematic diagram of the overall structure of the present invention;

[0024] Figure 3 This is an axonometric view from the bottom perspective of the present invention;

[0025] Figure 4 It is a partial structural diagram of the present invention;

[0026] Figure 5 This is a schematic diagram of the negative pressure assembly of the present invention;

[0027] Figure 6 It is a schematic diagram of another part of the structure of the present invention;

[0028] Figure 7 This is a schematic cross-sectional view of the fixing tube of the present invention;

[0029] Figure 8 This is a schematic diagram of another part of the structure of the present invention;

[0030] Figure 9 This is another structural diagram of the present invention;

[0031] In the figure: 1. Cabinet; 2. Heating assembly; 3. Defrost assembly; 4. Negative pressure assembly; 5. Adjustment assembly; 10. Partition; 11. Air supply hole; 12. Hollow column; 13. Drain hole; 20. Heating pipe; 21. Air supply hose; 30. Power unit; 31. Transmission unit; 32. Lifting unit; 33. Defrost unit; 34. Connecting block 2; 35. Pulling unit; 40. Fixing rod; 41. Fixing block; 42. Fan blade; 43. Round rod; 44. Connecting pipe; 45. Limiting rod; 46. Fixing cylinder; 50 , telescopic rod; 51, horizontal rod; 52, vertical rod; 300, housing; 301, motor; 310, bidirectional threaded rod; 311, moving block; 312, connecting block 1; 320, rack; 321, gear; 330, rotating shaft; 331, support frame; 332, sliding block; 333, push plate; 334, disc; 335, blade; 336, limiting groove; 350, spring; 351, ratchet gear; 352, pull rod; 3520, top foot; 460, arc groove; 3350, notch. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings:

[0033] like Figures 1 to 9 The illustrated electric distribution cabinet capable of defrosting comprises a cabinet body 1 , the bottom plate of the cabinet body 1 being a partition plate 10 , and a drainage hole 13 being provided at the bottom of a side plate of the cabinet body 1 .

[0034] A heating component 2 is provided on the cabinet body 1 , and a defrosting component 3 is provided on the four inner walls of the cabinet body 1 . The heating component 2 is in communication with the defrosting component 3 .

[0035] The heating assembly 2 includes a heating tube 20 and a gas hose 21. The heating tube 20 is arranged at the bottom of the partition 10. A gas hole 11 is provided at each of the four corners of the partition 10. A hollow column 12 is provided at the gas hole 11 and integrated with the partition 10. A gas hose 21 is sealed and connected to the top of the hollow column 12. One end of the gas hose 21 is connected to the defrost assembly 3 through the negative pressure assembly 4.

[0036] The defrost assembly 3 includes a power unit 30, a transmission unit 31, a lifting unit 32 and multiple defrost units 33. The power unit 30 is fixedly installed on the outside of the side panel of the cabinet 1. The transmission unit 31 is installed at the output end of the power unit 30. Multiple defrost units 33 are installed on both sides of the output end of the transmission unit 31. The multiple defrost units 33 are connected by connecting blocks 34 to form a closed loop fixed on the four inner walls of the cabinet 1. The defrost unit 33 is lifted and lowered in the cabinet 1 through the lifting unit 32.

[0037] The power unit 30 includes a housing 300 and a motor 301 . The housing 300 is installed outside the side panel of the cabinet 1 , and the motor 301 is installed inside the housing 300 .

[0038] The transmission part 31 includes a bidirectional threaded rod 310, a moving block 311 and a connecting block 312. The bidirectional threaded rod 310 is fixedly connected to the output end of the motor 301. The moving block 311 is installed on the bidirectional threaded rod 310. The connecting block 312 is fixedly connected to one side of the moving block 311. A defrost part 33 is connected to both sides of the connecting block 312.

[0039] The defrost unit 33 includes a rotating shaft 330, a support frame 331, a sliding block 332, a push plate 333, a disc 334 and a blade 335. The rotating shaft 330 is rotatably connected between two adjacent connecting blocks 2 34 or between the connecting block 2 34 and the adjacent connecting block 1 312. The support frame 331 spans between two adjacent connecting blocks 2 34 or between the connecting block 2 34 and the adjacent connecting block 1 312 and is located above the rotating shaft 330. The sliding block 332 is sleeved on the support frame 331, and a limiting groove is obliquely provided at the bottom of the support frame 331. 336, a disc 334 is installed obliquely on the rotating shaft 330, and the top of the disc 334 is clamped in the limit groove 336, a push plate 333 is hinged on one side of the sliding block 332, and the angle is controlled by the pulling part 35, and a blade 335 is movably installed on the top of the push plate 333 through the adjustment component 5. The push plate 333 is a cavity structure, and a plurality of mounting slots are opened on the top of the push plate 333. The pulling part 35 can realize that the defrost part 33 intermittently knocks on the frost attached to the inner wall of the cabinet 1 to accelerate the shedding of the frost and improve the cleaning efficiency.

[0040] The lifting part 32 includes a rack 320 and a gear 321. The gear 321 is installed on the rotating shaft 330. The rack 320 is vertically installed on the inner wall of the cabinet 1. The rack 320 and the gear 321 are meshed with each other. When the two-way threaded rod 310 rotates, the moving block 311 moves up and down on the two-way threaded rod 310, and the connecting block 1 312 moves up and down following the moving block 311. In the process of up and down movement, the gear meshes and rotates on the rack, thereby driving the rotating shaft to rotate, and then providing rotational power for the ratchet gear 351 and the disc 334 fixedly installed on the rotating shaft. As the disc 334 rotates, the disc 334 pushes the limiting slot 336 to move and then pushes the sliding block 332 to move, realizing the reciprocating motion of the sliding block 332 on the support frame 331.

[0041] The pulling portion 35 includes a spring 350, a ratchet gear 351, and a pull rod 352. The spring 350 is connected between the sliding block 332 and the push plate 333. The ratchet gear 351 is fixedly mounted on the rotating shaft 330. The pull rod 352 is a curved rod structure made by bending an elastic steel rod. A top foot 3520 is provided at the inner bend of the curved rod structure. One end of the pull rod 352 is hinged to the push plate 333, and the other end of the pull rod 352 is hooked and hooked onto the teeth of the ratchet gear 351. The top foot 3520 abuts against a stepped structure provided on one side of the sliding block 332. When the rotating shaft drives the ratchet gear to rotate, the ratchet gear drives the push plate to flip through the pull rod. During this process, the spring is compressed and generates a compressive force. When the pull rod changes the hook and pull teeth, the spring pushes the push plate to reset and knock the frost. When the pull rod is pulled on the next tooth again, the pull rod pulls the push plate away from the inner wall of the cabinet again.

[0042] The negative pressure assembly 4 includes a fixed rod 40, a fixed block 41, fan blades 42 and a round rod 43. The fixed block 41 is fixedly arranged on the sliding block 332. The fixed block 41 is a closed cavity structure. The fixed rod 40 is vertically installed on one end of the support frame 331. The round rod 43 is rotatably installed on the fixed rod 40. The cantilever end of the round rod 43 penetrates into the fixed block 41 and is fixedly installed with fan blades 42. The fixed cylinder moves left and right with the sliding block, and the arc groove drives the limit rod to rotate, and then the limit rod drives the round rod to rotate, and finally the fan blades rotate, so that the hot air generated by the heating tube 20 is transported to the push plate 333 through the hollow column 12, the gas hose 21 and the connecting pipe 44 in turn to heat the inner wall of the cabinet 1 and speed up the defrosting efficiency. A fixing cylinder 46 is coaxially installed at the insertion point of the round rod 43 on the fixed block 41. One end of the gas hose 21 is connected to the fixed block 41. The fixed block 41 is connected to the push plate 333 through a connecting pipe 44. A limiting rod 45 is fixedly installed on the round rod 43 located in the fixed block 41. The limiting rod 45 slides along the arc groove 460 set in the fixing cylinder 46. The trajectory of the arc groove 460 is consistent with the trajectory of the limiting groove 336.

[0043] The adjustment assembly 5 includes two telescopic rods 50 and a cross bar 51. The two telescopic rods 50 are hinged on both sides of the support frame 331. A cross bar 51 is connected to the top of the two telescopic rods 50. The cross bar 51 is set in the cavity of the push plate 333. A plurality of vertical rods 52 are evenly spaced vertically on the cross bar 51. The blade 335 is movably connected to the vertical rod 52. The blade 335 is adjusted to the installation slot by the telescopic rod 50. Specifically, a notch 3350 is provided on one side of the blade 335 to avoid the cross bar 51. An upper installation slot is provided on the top surface of the notch 3350, and a lower installation slot is provided on the bottom surface of the notch 3350. The upper and lower installation slots are arranged opposite each other. The vertical rod 52 is movably installed in the upper and lower installation slots to achieve the adjustment assembly 5 to the blade 335. When the telescopic rod 50 is extended or retracted, the position of the blade 335 can be adjusted. When the sliding block 332 slides on the support frame 331, the sliding block drives the push plate to move. At this time, the push plate slides on the surface of the cross bar, and the blade 335 will swing accordingly. When the blade swings, it can not only scrape the inner wall of the cabinet 1, but also make the hot air transported to the push plate follow the swing during the swing of the blade, thereby increasing the area of ​​heat covering the frost and accelerating the melting speed of the frost. Combined with the lifting action of the lifting part 32, all-round defrosting operation of the inner wall of the cabinet 1 is realized.

[0044] The cleaned frost falls on the partition, is melted by the heating of the heating tube, and finally flows out of the cabinet through the drain hole.

[0045] The above embodiments are merely some illustrations of the concept and implementation of the present invention, and are not intended to limit the same. Under the concept of the present invention, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. An electrical distribution cabinet capable of defrosting, comprising a cabinet body (1), wherein the bottom plate of the cabinet body (1) is a partition plate (10), and characterized in that: A heating component (2) is provided on the cabinet body (1), and a defrosting component (3) is provided on the four inner walls of the cabinet body (1), wherein the heating component (2) is in communication with the defrosting component (3); The heating assembly (2) includes a heating tube (20) and a gas supply hose (21), wherein the heating tube (20) is arranged at the bottom of the partition (10), and a gas supply hole (11) is provided at each of the four corners of the partition (10). A hollow column (12) is provided at the gas supply hole (11) and is integrated with the partition (10). A gas supply hose (21) is sealed and connected to the top of the hollow column (12), and one end of the gas supply hose (21) is connected to the defrost assembly (3) through the negative pressure assembly (4); The defrost assembly (3) includes a power unit (30), a transmission unit (31), a lifting unit (32) and a plurality of defrost units (33), wherein the power unit (30) is fixedly mounted on the outside of the side panel of the cabinet (1), a transmission unit (31) is mounted on the output end of the power unit (30), and a plurality of defrost units (33) are mounted on both sides of the output end of the transmission unit (31), wherein the plurality of defrost units (33) are connected to each other through a second connecting block (34) to form a closed loop fixed on the four inner walls of the cabinet (1), and the defrost units (33) are lifted and lowered in the cabinet (1) through the lifting unit (32); The power unit (30) comprises a housing (300) and a motor (301), wherein the housing (300) is mounted outside a side panel of the cabinet (1), and the motor (301) is mounted inside the housing (300); The transmission part (31) includes a bidirectional threaded rod (310), a moving block (311) and a connecting block (312), wherein the bidirectional threaded rod (310) is fixedly connected to the output end of the motor (301), the moving block (311) is mounted on the bidirectional threaded rod (310), the connecting block (312) is fixedly connected to one side of the moving block (311), and a defrosting part (33) is connected to both sides of the connecting block (312); The defrosting part (33) includes a rotating shaft (330), a support frame (331), a sliding block (332), a push plate (333), a disc (334) and a blade (335), wherein the rotating shaft (330) is rotatably connected between two adjacent connecting blocks 2 (34) or between the connecting block 2 (34) and the adjacent connecting block 1 (312), the supporting frame (331) is bridged between two adjacent connecting blocks 2 (34) or between the connecting block 2 (34) and the adjacent connecting block 1 (312) and is located above the rotating shaft (330), and the sliding block (332) is sleeved on the support frame (331), a limiting groove (336) is obliquely provided at the bottom of the support frame (331), a disc (334) is obliquely installed on the rotating shaft (330), and the top of the disc (334) is clamped in the limiting groove (336), a push plate (333) is hinged on one side of the sliding block (332), and the angle is controlled by the pulling part (35), a blade (335) is movably installed on the top of the push plate (333) through the adjustment component (5), the push plate (333) is a cavity structure, and a plurality of installation grooves are opened on the top of the push plate (333); The lifting part (32) includes a rack (320) and a gear (321), the gear (321) is mounted on the rotating shaft (330), the rack (320) is vertically mounted on the inner wall of the cabinet (1), and the rack (320) and the gear (321) are meshed; The pulling portion (35) includes a spring (350), a ratchet gear (351) and a pull rod (352), wherein the spring (350) is connected between the sliding block (332) and the push plate (333), the ratchet gear (351) is fixedly mounted on the rotating shaft (330), the pull rod (352) is a curved rod structure made by bending an elastic steel rod, and a top foot (3520) is provided at the inner bend of the curved rod structure, one end of the pull rod (352) is hinged to the push plate (333), and the other end of the pull rod (352) is hooked and hooked on the teeth of the ratchet gear (351), and the top foot (3520) is supported on a stepped structure provided on one side of the sliding block (332); The negative pressure assembly (4) comprises a fixed rod (40), a fixed block (41), a fan blade (42) and a round rod (43). The fixed block (41) is arranged on the sliding block (332). The fixed block (41) is a closed cavity structure. The fixed rod (40) is vertically mounted on one end of the support frame (331). A round rod (43) is rotatably mounted on the fixed rod (40). The cantilever end of the round rod (43) penetrates into the fixed block (41) and is fixedly mounted with the fan blade ( 42), a fixed cylinder (46) is coaxially installed at the insertion position of the round rod (43) on the fixed block (41), one end of the gas supply hose (21) is connected to the fixed block (41), and the fixed block (41) is connected to the push plate (333) through a connecting pipe (44), and a limiting rod (45) is fixedly installed on the round rod (43) located in the fixed block (41), and the limiting rod (45) slides along the arc groove (460) provided in the fixed cylinder (46).

2. The defrostable electrical distribution cabinet according to claim 1, characterized in that: A drainage hole (13) is provided at the bottom of the side panel of the cabinet (1).

3. The defrostable electrical distribution cabinet according to claim 1, characterized in that: The adjustment assembly (5) includes two telescopic rods (50) and a cross rod (51), the two telescopic rods (50) are hinged on both sides of the support frame (331), a cross rod (51) is connected to the top of the two telescopic rods (50), and the cross rod (51) is arranged in the cavity of the push plate (333); a plurality of vertical rods (52) are evenly spaced vertically on the cross rod (51), and the blade (335) is movably connected to the vertical rod (52), and the blade is adjusted to the installation groove by the telescopic rod (50).

4. The defrostable electrical distribution cabinet according to claim 3, characterized in that: A notch (3350) for avoiding the crossbar (51) is provided on one side of the blade (335), an upper mounting groove is provided on the top surface of the notch (3350), and a lower mounting groove is provided on the bottom surface of the notch (3350), the upper mounting groove and the lower mounting groove are arranged relative to each other, and the vertical rod (52) is movably installed in the upper mounting groove and the lower mounting groove.

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