Electrical power distribution cabinet capable of removing frost

Abstract

The invention discloses an electrical power distribution cabinet capable of removing frost, which comprises a cabinet body, a bottom plate of the cabinet body is a partition plate, a heating assembly is arranged on the cabinet body, defrosting assemblies are arranged on four walls of the inner side of the cabinet body, and the heating assembly is communicated with the defrosting assemblies; the heating assembly comprises a heating pipe and a gas conveying hose, the heating pipe is arranged at the bottom of the partition plate, the four corners of the partition plate are each provided with a gas conveying hole, hollow columns are arranged at the positions of the gas conveying holes and integrated with the partition plate, and the top of each hollow column is connected with the gas conveying hose in a sealed and through mode. One end of the air conveying hose communicates with the defrosting assembly through the negative pressure assembly. According to the power distribution cabinet, frost attached to the inner wall of the electrical power distribution cabinet is scraped and effectively cleaned, and the working efficiency of defrosting is improved.

Description

Technical Field

[0001] The 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 facilities in the field of high and low voltage power distribution. They are widely used in various power transmission and distribution fields and electric control fields. Many electrical components are installed in electrical distribution cabinets, such as relays, circuit breakers, switchgear, measuring instruments, protective electrical appliances and auxiliary equipment, which are assembled in closed or semi-closed metal cabinets or on screens to form low-voltage distribution boxes. During normal operation, the circuit can be connected or disconnected with the help of manual or automatic switches.

[0003] The power distribution cabinet is easy to install, has special technical performance, fixed position, unique configuration function, is not restricted by the site, is widely used, has stable and reliable operation, high space utilization, occupies less space and has environmental protection effects. It is the control center that directs various components in the power supply line to reasonably distribute electric energy. It is the control link that reliably receives the upper power supply and correctly feeds out the load power. It is also the key to obtaining the user's satisfaction with the power supply quality. Improving the operational reliability of the power distribution box is an important part of creating high-quality power engineering.

[0004] As we all know, air contains heat, which is generated by solar radiation. The temperature changes greatly due to the seasons, which will also affect the working efficiency of air-energy water heaters. Generally speaking, it is used in areas with an average temperature of -25°C to -30°C, and it will automatically shut down when the minimum temperature is exceeded. However, in some areas, the winter temperature generally exceeds -30°C, and the unit cannot operate normally. Too low a temperature will cause frost on the fin heat exchanger of the air-energy water heater, which is not conducive to the evaporation gas absorbing heat in the air, reducing the evaporator's ability to absorb energy, and directly affecting the user's heating area reduction and shutdown. Summary of the invention

[0005] The purpose of the present invention is to provide an electrical distribution cabinet capable of defrosting, and the method solves the problem of frosting of the distribution cabinet.

[0006] To achieve the above object, the present invention adopts the following technical solutions: An electric distribution cabinet capable of defrosting comprises a cabinet body, wherein the cabinet body bottom plate is a partition plate, a heating component is arranged on the cabinet body, and a defrosting component is arranged on the four inner walls of the cabinet body, wherein the heating component is connected to the defrosting component; The heating assembly includes a heating pipe and a gas delivery hose, the heating pipe is arranged at the bottom of the partition, and a gas delivery hole is respectively provided at the four corners of the partition, a hollow column is provided at the gas delivery hole and integrated with the partition, and a gas delivery hose is sealed and connected to the top of the hollow column, and one end of the gas delivery hose is connected to the defrosting assembly through a negative pressure assembly; The defrost assembly includes a power unit, a transmission unit, a lifting unit and multiple defrost units. The power unit is fixedly installed outside the side panel of the cabinet, 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, and the defrost units are lifted and lowered in the cabinet through the lifting unit.

[0007] Preferably, a drainage hole is provided at the bottom of the side panel of the cabinet.

[0008] 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.

[0009] 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, and a defrost part is connected to both sides of the connecting block 1.

[0010] 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 connecting block 2 and an adjacent connecting block, the support frame is bridged between two adjacent connecting blocks or between connecting block 2 and an adjacent connecting block, and is located above the rotating shaft, the sliding block is sleeved on the support frame, 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 a pulling part, 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.

[0011] 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.

[0012] 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 mounted on the rotating shaft, the pull rod is a curved rod structure made by bending an elastic steel rod, 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, 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 a stepped structure provided on one side of the sliding block.

[0013] 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 mounted on one end of the support frame, the round rod is rotatably mounted on the fixed rod, the cantilever end of the round rod penetrates into the fixed block and is fixedly mounted with fan blades, a fixed cylinder is coaxially mounted at the insertion point of the round rod on the fixed block, one end of the air supply hose is connected with the fixed block, the fixed block is connected with the push plate through a connecting pipe, a limiting rod is fixedly mounted on the round rod located in the fixed block, and the limiting rod slides along an arc groove arranged in the fixed cylinder.

[0014] Preferably, the adjustment assembly includes two telescopic rods and a cross bar, the two telescopic rods are hinged on both sides of the support frame, a cross bar is connected to the top of the two telescopic rods, and the cross bar is arranged in the cavity of the push plate; a plurality of vertical rods are evenly spaced vertically arranged on the cross bar, the blade is movably connected to the vertical rod, and the blade is adjusted by the telescopic rod to the mounting groove.

[0015] 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, 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.

[0016] In the present invention, the heating tube is turned on during 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. Scratching and cleaning, as the rotating shaft moves up and down, the rotating shaft drives the gear to move up and down, because the gear is meshing 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.

[0017] 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 in contact with 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.

[0018] The top of the push plate is rotatably provided with multiple blades. 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 blade to rotate. Some frost clumps have a larger area and a smoother surface. Since 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 is increased, thereby accelerating the melting speed of the frost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of a partial cutaway of the overall structure of the present invention; Figure 3 This is an axonometric view from the bottom perspective of the present invention; Figure 4 It is a partial structural schematic diagram of the present invention; Figure 5 It is a schematic diagram of the negative pressure assembly of the present invention; Figure 6 It is another structural schematic diagram of the present invention; Figure 7 It is a schematic cross-sectional view of the fixing tube of the present invention; Figure 8 It is a structural schematic diagram of another part of the present invention; Fig. 9 It is a schematic diagram of another part of the structure of the present invention; In the figure: 1, cabinet; 2, heating component; 3, defrosting component; 4, negative pressure component; 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, defrosting unit; 34, connecting block 2; 35, pulling unit; 40, fixing rod; 41, fixing block; 42, fan blade; 43, round rod; 44, connecting pipe; 45, limit rod; 46, fixing cylinder; 50, telescopic rod ; 51, horizontal bar; 52, vertical bar; 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, limit groove; 350, spring; 351, ratchet gear; 352, pull rod; 3520, top foot; 460, arc groove; 3350, notch. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings: like Figures 1 to 9 The defrosting electrical distribution cabinet shown comprises a cabinet body 1 , the bottom plate of the cabinet body 1 is a partition plate 10 , and a drainage hole 13 is provided at the bottom of the side plate of the cabinet body 1 .

[0021] A heating component 2 is arranged on the cabinet body 1 , and a defrosting component 3 is arranged on the four inner walls of the cabinet body 1 . The heating component 2 is connected to the defrosting component 3 .

[0022] The heating component 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 respectively provided at the four corners of the partition 10. A hollow column 12 is integrated with the partition 10 at the gas hole 11. The 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 component 3 through the negative pressure component 4.

[0023] 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 outside 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.

[0024] The power unit 30 includes a housing 300 and a motor 301 . The housing 300 is installed outside a side plate of the cabinet 1 , and the motor 301 is installed inside the housing 300 .

[0025] 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. A 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.

[0026] 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. 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 connected 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 supporting frame 331. A limiting groove is obliquely provided at the bottom of the supporting frame 331. 336, 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, and a blade 335 is movably installed on the top of the push plate 333 through the adjusting component 5, the push plate 333 is a cavity structure, and a plurality of mounting grooves are opened on the top of the push plate 333, and the pulling part 35 can realize the defrost part 33 to intermittently knock the frost attached to the inner wall of the cabinet 1 to accelerate the shedding of the frost and improve the cleaning efficiency.

[0027] 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. 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 moving up and down, the gear meshes and rotates on the rack, thereby driving the rotating shaft to rotate, and then providing rotational power for the ratchet gear and the disc fixedly installed on the rotating shaft. As the disc rotates, the disc pushes the limit block to move and then pushes the sliding block to move, thereby realizing the reciprocating motion of the sliding block on the support frame.

[0028] The pulling part 35 includes a spring 350, a ratchet gear 351 and a pull rod 352. The spring 350 is pulled 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 arranged at the inner bend of the curved rod structure. One end of the pull rod 352 is hinged on the push plate 333. The other end of the pull rod 352 is hooked and hooked on the teeth of the ratchet gear 351. The top foot 3520 is pressed against the stepped structure arranged 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. In this process, the spring is compressed to generate compression force. When the pull rod is in the process of replacing the hook 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.

[0029] The negative pressure component 4 includes a fixed rod 40, a fixed block 41, a fan blade 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 the fan blade 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 blade rotates, 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 achieve heating of the inner wall of the cabinet 1 and accelerate the defrosting efficiency. A fixing cylinder 46 is coaxially installed at the insertion point of the round rod 43 on the fixing block 41, one end of the gas hose 21 is connected to the fixing block 41, and the fixing 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 fixing block 41, and the limiting rod 45 slides along the arc groove 460 set in the fixing cylinder 46, and the trajectory of the arc groove 460 is consistent with the trajectory of the limiting groove 336.

[0030] 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 arranged on the cross bar 51. The blade 335 is movably connected to the vertical rod 52. The blade 335 is adjusted to the installation groove by the telescopic rod 50. Specifically, a notch 3350 for avoiding the cross bar 51 is set on one side of the blade 335. An upper installation groove is opened on the top surface of the notch 3350, and a lower installation groove is opened on the bottom surface of the notch 3350. The upper installation groove and the lower installation groove are arranged oppositely. The vertical rod 52 is movably installed in the upper installation groove and the lower installation groove to realize 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.

[0031] 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.

[0032] The above embodiments are only 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 a bottom plate of the cabinet body (1) is a partition plate (10), and characterized in that: A heating component (2) is arranged on the cabinet body (1), and a defrosting component (3) is arranged on the four inner walls of the cabinet body (1), and the heating component (2) is connected to the defrosting component (3); The heating assembly (2) comprises a heating tube (20) and a gas supply hose (21), the heating tube (20) being arranged at the bottom of the partition (10), a gas supply hole (11) being provided at each of the four corners of the partition (10), a hollow column (12) being provided at the gas supply hole (11) and being integrated with the partition (10), a gas supply hose (21) being sealed and connected to the top of the hollow column (12), and one end of the gas supply hose (21) being connected to the defrosting assembly (3) via a negative pressure assembly (4); The defrost assembly (3) comprises a power unit (30), a transmission unit (31), a lifting unit (32) and a plurality of defrost units (33); the power unit (30) is fixedly mounted outside a side panel of the cabinet (1); a transmission unit (31) is mounted at an output end of the power unit (30); a plurality of defrost units (33) are mounted on both sides of the output end of the transmission unit (31); the plurality of defrost units (33) are connected via a second connecting block (34) to form a closed loop fixed to the four inner walls of the cabinet (1); and the defrost units (33) are lifted and lowered in the cabinet (1) via the lifting unit (32).

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

3. The defrosting electrical distribution cabinet according to claim 1, characterized in that: The power unit (30) comprises a casing (300) and a motor (301); the casing (300) is mounted outside a side plate of the cabinet (1), and the motor (301) is mounted inside the casing (300).

4. The defrosting electrical distribution cabinet according to claim 3, characterized in that: The transmission part (31) comprises 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 mounted on the bidirectional threaded rod (310); a 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).

5. The defrosting electrical distribution cabinet according to claim 4, characterized in that: The defrosting part (33) comprises 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 (34) or between the connecting block (34) and the adjacent connecting block (312); the supporting frame (331) is bridged between two adjacent connecting blocks (34) or between the connecting block (34) and the adjacent connecting block (312) and is located above the rotating shaft (330); the sliding block (332) is sleeved on the support frame (331), a limiting groove (336) is obliquely arranged 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), and the push plate (333) is a cavity structure, and a plurality of installation grooves are opened on the top of the push plate (333).

6. The defrosting electrical distribution cabinet according to claim 1, characterized in that: The lifting part (32) comprises 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); the rack (320) and the gear (321) are meshed with each other.

7. The defrosting electrical distribution cabinet according to claim 5, characterized in that: The pulling portion (35) comprises a spring (350), a ratchet gear (351) and a pull rod (352); the spring (350) is pulled 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 formed 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 on the push plate (333); the other end of the pull rod (352) is hooked and hooked on the teeth of the ratchet gear (351); the top foot (3520) is supported on a stepped structure provided on one side of the sliding block (332).

8. The defrostable electrical distribution cabinet according to claim 5, characterized in that: 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); a cantilever end of the round rod (43) penetrates into the fixed block (41) and is fixedly mounted with the fan blade (42); 42), a fixing cylinder (46) is coaxially mounted at the insertion position of the round rod (43) on the fixing block (41), one end of the gas delivery hose (21) is connected to the fixing block (41), the fixing block (41) is connected to the push plate (333) via a connecting pipe (44), a limiting rod (45) is fixedly mounted on the round rod (43) located in the fixing block (41), and the limiting rod (45) slides along an arc groove (460) provided in the fixing cylinder (46).

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

10. The defrostable electrical distribution cabinet according to claim 9, 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 opposite to each other, and the vertical rod (52) is movably mounted in the upper mounting groove and the lower mounting groove.

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