Power distribution cabinet capable of effectively reducing heat dissipation blind area

Abstract

The utility model discloses a power distribution cabinet capable of effectively reducing a heat dissipation blind area, which comprises a cabinet body, the lower end of the cabinet body is fixedly connected with a hollow first shell, the inner wall of the first shell is fixedly connected with a shutter and a first dust removal net, and the top end of the inner wall of the first shell is fixedly connected with a plurality of first axial flow fans at equal intervals. A hollow second shell is fixedly connected to the bottom of the inner wall of the cabinet body, a plurality of filtering mechanisms are fixedly connected to the bottom of the inner wall of the second shell at equal intervals, heat dissipation mechanisms are fixedly connected to the middles of the two side ends of the cabinet body respectively, and angle adjusting mechanisms are fixedly connected to the two ends of the inner wall of the cabinet body respectively; a top dust removal net is fixedly connected to the middle of the upper end of the cabinet body, and a door body is installed at the open end of the cabinet body. Air enters from the bottom of the power distribution cabinet through the first axial flow fan, air enters from the two sides of the power distribution cabinet through the heat dissipation mechanism, the angle adjusting mechanism changes the angle of airflow fed into the power distribution cabinet by the heat dissipation mechanism, and heat dissipation blind areas in the power distribution cabinet are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power distribution cabinet, concretely is a power distribution cabinet that can effectively reduce the blind area of heat dissipation. BACKGROUND

[0002] The power distribution cabinet is the last stage equipment of the power distribution system, and is used in the occasion that the load is relatively dispersed and the loop is less. The power distribution cabinet distributes the electric energy of a circuit of the last stage power distribution equipment to the nearby load. When the existing alternating current power distribution cabinet blows the inside of the power distribution cabinet, part of the blind area in the power distribution cabinet cannot be heat dissipated, which greatly influences the heat dissipation efficiency of the power distribution cabinet.

[0003] The patent name is safe high-voltage power distribution cabinet, and a plurality of guide plates that can swing synchronously are arranged, the airflow entering the square frame is guided after the axial flow fan is started, the airflow can be continuously switched between upward blowing and downward blowing, fully contacts the electrical equipment in the cabinet body, and the blind area of heat dissipation is reduced.

[0004] In the above scheme, the guide plate is swung through the meshing of the rack and the gear, and the airflow direction is changed. In the above scheme, the number of gears needs to be the same as the number of guide plates, and the gear and rack transmission needs precise processing and cooperation, so that the price of the gear and rack is higher, and the production cost of the power distribution cabinet is increased. Utility model content

[0005] The utility model discloses a power distribution cabinet that can effectively reduce the blind area of heat dissipation, can reduce the blind area of heat dissipation of the power distribution cabinet through the air intake from both sides and the bottom of the power distribution cabinet, changes the air intake angle of both sides of the power distribution cabinet simultaneously, and the structure that changes the air intake angle is simple, convenient to process, reduces the production cost of the power distribution cabinet.

[0006] In order to achieve the above object, the power distribution cabinet capable of effectively reducing the heat dissipation blind area comprises a cabinet body, one end of the cabinet body is provided with an opening, the lower end of the cabinet body is fixedly connected with a hollow first shell, the inner wall of the first shell is fixedly connected with a louver and a first dust removal net, and the louver penetrates one end of the first shell, a plurality of first axial flow fans are fixedly connected at equal intervals at the top end of the inner wall of the first shell, and the upper ends of the first axial flow fans penetrate the first shell and the cabinet body in sequence, the first axial flow fan is located on the side of the first dust removal net away from the louver, the bottom of the inner wall of the cabinet body is fixedly connected with a hollow second shell, and the upper ends of the first axial flow fans are in communication with the inside of the second shell, the inner wall bottom of the second shell is fixedly connected with a plurality of filtering mechanisms at equal intervals, and the lower ends of the plurality of filtering mechanisms are respectively in communication with the first axial flow fans, the upper ends of the filtering mechanisms penetrate the second shell upwards, the middle parts of the two side ends of the cabinet body are respectively fixedly connected with heat dissipation mechanisms, the inner walls of the two ends of the cabinet body are respectively fixedly connected with angle adjusting mechanisms, and the angle adjusting mechanisms penetrate the cabinet body, the angle adjusting mechanisms are in communication with the heat dissipation mechanisms, the middle part of the upper end of the cabinet body is fixedly connected with a top dust removal net, and the top dust removal net is in communication with the inside of the cabinet body, a protective roof is installed above the cabinet body, metal rods are respectively welded at the four corners of the upper end of the cabinet body, and the upper ends of the metal rods are fixedly connected with the protective roof, a door body is installed at the opening end of the cabinet body, a hinge is installed at one end of the door body, and the cabinet body and the door body are connected through the hinge. The air can be taken in from the two sides and the bottom of the power distribution cabinet, the heat dissipation blind area of the power distribution cabinet is reduced, the air inlet angle of the two sides of the power distribution cabinet is changed, the structure for changing the air inlet angle is simple and convenient to process, and the production cost of the power distribution cabinet is reduced.

[0007] According to the power distribution cabinet capable of effectively reducing the heat dissipation blind area, the heat dissipation mechanism is composed of an air inlet pipe, a second dust removal net, a first activated carbon filter plate and a mounting plate, the inside of the air inlet pipe is a rectangular channel, the air inlet pipe is fixedly connected to the middle part of the outer side end of the cabinet body, one end of the air inlet pipe penetrates the cabinet body, and the air inlet pipe is in communication with the angle adjusting mechanism, the mounting plate is provided with two symmetrically fixedly connected inner walls of the air inlet pipe, one end of the mounting plate is fixedly connected with a plurality of second axial flow fans at equal intervals, and the second axial flow fans are located at one end of the mounting plate facing the cabinet body, the second dust removal net and the first activated carbon filter plate are respectively fixedly connected to the inner wall of the air inlet pipe, and the second dust removal net and the first activated carbon filter plate are located on the side of the mounting plate away from the cabinet body, and the first activated carbon filter plate is located between the second dust removal net and the mounting plate. The second axial flow fan sends the air outside into the power distribution cabinet through the air inlet pipe, the second dust removal net filters the large particle dust impurities in the air, and the first activated carbon filter plate filters out small particle dust while adsorbing the moisture in the air, thereby improving the air quality in the power distribution cabinet.

[0008] According to the power distribution cabinet capable of effectively reducing the heat dissipation blind area, the angle adjusting mechanism is composed of a first mounting frame, a guide plate, a first guide rail, an electric push rod and a support plate, the first mounting frame is fixedly connected to the inner wall of the cabinet body, and the air inlet pipe is communicated with the first mounting frame, the guide plate is provided with a plurality of guide plates which are equidistantly mounted on the inner wall of the first mounting frame and are parallel to each other, the two ends of the guide plate are respectively fixedly connected with rotating shafts, the rotating shafts penetrate through the first mounting frame and are rotationally connected with the first mounting frame, a plurality of L-shaped connecting rods are equidistantly mounted on the side end of the first mounting frame, one end of the connecting rod is fixedly connected with the rotating shaft of the guide plate, the support plate is fixedly connected to the side end of the first mounting frame, and the support plate is located at the bottom of the first mounting frame, the first guide rail is fixedly connected to the upper end of the support plate, the first guide rail is slidably connected with a first sliding block, one end of the first sliding block is fixedly connected with a transmission rod, one end of the transmission rod towards the connecting rod is fixedly connected with a rotating frame, the rotating frame is rotationally connected with a rotating plate, one end of the rotating plate is fixedly connected with the transmission rod, the electric push rod is fixedly connected to the lower end of the support plate, the output end of the electric push rod penetrates through the support plate and the first guide rail in sequence, and the output end of the electric push rod is fixedly connected with the middle part of the lower end of the first sliding block. The electric push rod drives the first sliding block to slide up and down in the first guide rail, the first sliding block drives the transmission rod to move, and the cooperation of the rotating frame and the rotating plate on the transmission rod changes the inclination angle of the guide plate when the transmission rod moves up and down, so as to change the direction of the air flow entering the power distribution cabinet through the heat dissipation mechanism and reduce the heat dissipation blind area.

[0009] According to the power distribution cabinet capable of effectively reducing the heat dissipation blind area, the filter mechanism is composed of a second guide rail, a second activated carbon filter plate, a second sliding block, a connecting plate, a sieve plate and a second mounting frame, the second mounting frame is fixedly connected to the upper end of the connecting plate, and the outer side end of the second mounting frame is located on the same plane with the outer side end of the connecting plate, the second mounting frame penetrates through the upper end of the second shell in upward direction, and the second mounting frame is slidably connected with the second shell, the upper end of the second mounting frame is located on the same plane with the upper end of the second shell, a channel communicated with the first axial flow fan is formed in the middle part of the connecting plate, and the channel is located in the middle part of the connecting plate, the second guide rail is respectively located in the middle part of the two sides of the second mounting frame, and the opening ends of the two second guide rails are opposite to each other, the second guide rail is fixedly connected to the inner wall of the bottom of the cabinet body, the second sliding block is arranged in the second guide rail and is slidably connected with the inner wall of the second guide rail, and the second sliding block is fixedly connected with the connecting plate, the second activated carbon filter plate is fixedly connected to the upper end of the connecting plate, and the outer side end of the second activated carbon filter plate is slidably connected with the inner wall of the second mounting frame, and the sieve plate is fixedly connected to the upper end of the inner wall of the second mounting frame. The second activated carbon filter plate adsorbs the moisture and small particle dust in the air sucked by the first axial flow fan, and the sieve plate protects the first axial flow fan, so as to avoid the objects in the power distribution cabinet from entering the first axial flow fan and causing damage to the first axial flow fan.

[0010] According to the power distribution cabinet capable of effectively reducing the heat dissipation blind area, the second guide rail on one side of the connecting plate is provided with an adjusting screw rod at the upper end, the adjusting screw rod is sequentially penetrated into the second guide rail downwards and is rotationally connected with the second guide rail, and the adjusting screw rod is penetrated into the middle part of the second sliding block and is threadedly connected with the second sliding block. The threaded cooperation of the adjusting screw rod and the second sliding block and the fixed connection of the second sliding block and the second mounting frame enable the staff to extend the connecting plate, the second mounting frame and the second active carbon filter plate and the sieve plate out of the second shell by rotating the adjusting screw rod, so that the staff can maintain the filtering mechanism.

[0011] According to the power distribution cabinet capable of effectively reducing the heat dissipation blind area, a plurality of wire grooves in communication with the cabinet are formed at the two side ends of the cabinet body, and the wire grooves are located below the filtering mechanism. The wire grooves are used for the external cables to enter the power distribution cabinet and be connected with the electrical appliances in the cabinet.

[0012] According to the power distribution cabinet capable of effectively reducing the heat dissipation blind area, the lower end of the protective roof is provided with a downwardly protruding arc surface, the top dust removal net is located below the middle part of the arc surface of the protective roof, and the outer side ends of the protective roof are bent downwards. The arc surface of the lower end of the protective roof reduces the impact of the exhaust hot air in the power distribution cabinet on the protective roof, and the outer side ends of the protective roof are bent downwards to avoid the rainwater flowing along the arc surface at the lower end of the protective roof and entering the power distribution cabinet through the top dust removal net.

[0013] Compared with the prior art, the power distribution cabinet has the following beneficial effects:

[0014] 1. The first axial flow fan is arranged at the bottom of the power distribution cabinet to take in air, the heat dissipation mechanism is arranged at the two sides of the power distribution cabinet to take in air, the electric push rod drives the first sliding block to slide up and down in the first guide rail, the first sliding block drives the transmission rod to move, the cooperation of the rotating frame and the rotating plate on the transmission rod enables the transmission rod to move up and down, the connecting rod drives the guide plate to rotate, the inclination angle of the guide plate is changed, the air flow direction entering the power distribution cabinet through the heat dissipation mechanism is changed, the heat dissipation blind area is reduced, the angle adjusting mechanism has a simple structure and is convenient to process, and the production cost of the power distribution cabinet is reduced.

[0015] 2. The cooperation of the adjusting screw rod and the second sliding block enables the staff to extend the connecting plate, the second mounting frame and the second active carbon filter plate and the sieve plate out of the second shell by rotating the adjusting screw rod, so that the staff can maintain the filtering mechanism.

[0016] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent from the following description, or will be learned by practicing the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in combination with the drawings and embodiments.

[0018] Figure 1 It is a perspective view of the power distribution cabinet capable of effectively reducing the heat dissipation blind area of the utility model;

[0019] Figure 2 It is a perspective view of the power distribution cabinet capable of effectively reducing the heat dissipation blind area of the utility model without the door body;

[0020] Figure 3 It is a sectional view of the power distribution cabinet capable of effectively reducing the heat dissipation blind area of the utility model without the door body;

[0021] Figure 4 It is a perspective view of the angle adjusting mechanism of the power distribution cabinet capable of effectively reducing the heat dissipation blind area of the utility model;

[0022] Figure 5 It is a sectional view of the heat dissipation mechanism of the power distribution cabinet capable of effectively reducing the heat dissipation blind area of the utility model;

[0023] Figure 6 It is a sectional view of the filtering mechanism of the power distribution cabinet capable of effectively reducing the heat dissipation blind area of the utility model;

[0024] Figure 7 It is Figure 4 It is an enlarged view of A in the middle;

[0025] Figure 8 It is an enlarged view of the power distribution cabinet capable of effectively reducing the heat dissipation blind area of the utility model.

[0026] In the figure: 1, protective ceiling; 2, door body; 3, louver; 4, first shell; 5, wire slot; 6, heat dissipation mechanism; 7, cabinet body; 8, angle adjusting mechanism; 9, filtering mechanism; 10, second shell; 11, first dust removal net; 12, first axial flow fan; 13, top dust removal net; 14, first mounting frame; 15, guide plate; 16, first guide rail; 17, electric push rod; 18, support plate; 19, first sliding block; 20, transmission rod; 21, air inlet pipe; 22, second dust removal net; 23, first activated carbon filter plate; 24, mounting plate; 25, second axial flow fan; 26, second guide rail; 27, second activated carbon filter plate; 28, second sliding block; 29, connecting plate; 30, adjusting screw; 31, sieve plate; 32, second mounting frame; 33, connecting rod; 34, rotating frame; 35, rotating plate. DETAILED DESCRIPTION

[0027] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0028] Please refer to Figure 1 - Figure 7The utility model provides a technical scheme: a power distribution cabinet can effectively reduce the heat dissipation blind area, including the cabinet body 7, one end of cabinet body 7 is equipped with the opening, the lower end fixedly connected with the hollow first casing 4 of cabinet body 7, the inner wall fixedly connected with the louver 3 and first dust screen 11 of first casing 4, and the louver 3 penetrates one end of first casing 4, the top equal interval fixedly connected with a plurality of first axial flow fan 12 of first casing 4 inner wall, and the upper end of first axial flow fan 12 penetrates first casing 4 and cabinet body 7 in proper order, first axial flow fan 12 is located the side of first dust screen 11 far away from louver 3, the bottom fixedly connected with the hollow second casing 10 of cabinet body 7 inner wall, and the upper end of first axial flow fan 12 is communicated with second casing 10 inside, the inner wall bottom equal interval fixedly connected with a plurality of filter mechanism 9 of second casing 10, and the lower end of a plurality of filter mechanism 9 is communicated with first axial flow fan 12 respectively, filter mechanism 9 is equipped with multiple and makes the volume of single filter mechanism 9 smaller, light in weight, the upper end of filter mechanism 9 penetrates second casing 10 upwards, filter mechanism 9 is composed of second guide rail 26, second activated carbon filter plate 27, second sliding block 28, connecting plate 29, sieve plate 31 and second mounting frame 32, second mounting frame 32 is fixedly connected on the upper end of connecting plate 29, and the outside end of second mounting frame 32 is located with the outside end of connecting plate 29 on the same plane, second mounting frame 32 penetrates second casing 10 upper end upwards, and second mounting frame 32 is slidably connected with second casing 10, the upper end of second mounting frame 32 is on the same plane with the upper end of second casing 10, the middle of connecting plate 29 is provided with the passageway that is communicated with first axial flow fan 12, and the passageway is located in the middle of connecting plate 29, second guide rail 26 is located in the middle of both sides of second mounting frame 32 respectively, and the opening end of two second guide rails 26 is opposite, second guide rail 26 is fixedly connected on the inner wall bottom of cabinet body 7, second sliding block 28 is located in second guide rail 26 and is slidably connected with the inner wall of second guide rail 26, and second sliding block 28 is fixedly connected with connecting plate 29, the upper end of second guide rail 26 on the side of connecting plate 29 is equipped with adjusting screw 30, and adjusting screw 30 penetrates second guide rail 26 downwards in proper order and is rotatably connected with second guide rail 26, adjusting screw 30 penetrates the middle of second sliding block 28 and is threadedly connected with second sliding block 28, the thread cooperation of adjusting screw 30 and second sliding block 28, and the fixed connection of second sliding block 28 and second mounting frame 32 make staff can drive connecting plate 29, second mounting frame 32 and second activated carbon filter plate 27 and sieve plate 31 by rotating adjusting screw 30 and make second sliding block 28 extend second casing 10, be convenient for staff to maintain filter mechanism 9, second activated carbon filter plate 27 is fixedly connected on the upper end of connecting plate 29, and the outside end of second activated carbon filter plate 27 is slidably connected with the inner wall of second mounting frame 32, sieve plate 31 is fixedly connected on the inner wall upper end of second mounting frame 32, second activated carbon filter plate 27 absorbs the moisture and small particle dust in the air that is inhaled by first axial flow fan 12, sieve plate 31 protects first axial flow fan 12,The objects in the power distribution cabinet are prevented from entering the first axial flow fan 12 and damaging the first axial flow fan 12. The cabinet body 7 is fixedly connected with the heat dissipation mechanism 6 at the middle of the two side ends, the heat dissipation mechanism 6 is composed of the air inlet pipe 21, the second dust removal net 22, the first activated carbon filter plate 23 and the mounting plate 24, the air inlet pipe 21 is internally a rectangular channel, the air inlet pipe 21 is fixedly connected to the middle of the outer side end of the cabinet body 7, one end of the air inlet pipe 21 penetrates the cabinet body 7 and is in communication with the angle adjusting mechanism 8, the mounting plate 24 is provided with two mounting plates which are symmetrically fixedly connected to the inner wall of the air inlet pipe 21, a plurality of second axial flow fans 25 are fixedly connected to one end of the mounting plate 24 at equal intervals, the second axial flow fans 25 are located at the end of the mounting plate 24 facing the cabinet body 7, the second dust removal net 22 and the first activated carbon filter plate 23 are fixedly connected to the inner wall of the air inlet pipe 21, the second dust removal net 22 and the first activated carbon filter plate 23 are located at the side of the mounting plate 24 away from the cabinet body 7, the first activated carbon filter plate 23 is located between the second dust removal net 22 and the mounting plate 24, the second axial flow fans 25 send the external air into the power distribution cabinet through the air inlet pipe 21, the second dust removal net 22 filters the large particle dust impurities in the air, the first activated carbon filter plate 23 filters out the small particle dust while adsorbing the moisture in the air, and the air quality in the power distribution cabinet is improved. The inner wall of the cabinet body 7 is fixedly connected with the angle adjusting mechanism 8 at the two ends, the angle adjusting mechanism 8 penetrates the cabinet body 7 and is in communication with the heat dissipation mechanism 6, the angle adjusting mechanism 8 is composed of the first mounting frame 14, the guide plate 15, the first guide rail 16, the electric push rod 17 and the support plate 18, the first mounting frame 14 is fixedly connected to the inner wall of the cabinet body 7 and the air inlet pipe 21 is in communication with the first mounting frame 14, the guide plate 15 is provided with a plurality of guide plates which are installed on the inner wall of the first mounting frame 14 at equal intervals and are parallel to each other, the two middle ends of the guide plate 15 are fixedly connected with the shafts, the shafts penetrate the first mounting frame 14 and are rotatably connected with the first mounting frame 14, a plurality of L-shaped connecting rods 33 are installed on the side end of the first mounting frame 14 at equal intervals, one end of the connecting rod 33 is fixedly connected with the shaft of the guide plate 15, the support plate 18 is fixedly connected to the side end of the first mounting frame 14 and is located at the bottom of the first mounting frame 14, the first guide rail 16 is fixedly connected to the upper end of the support plate 18, the first guide rail 16 is slidably connected with the first sliding block 19, one end of the first sliding block 19 is fixedly connected with the transmission rod 20, one end of the transmission rod 20 facing the connecting rod 33 is fixedly connected with the rotating frame 34, the rotating plate 35 is rotatably connected in the rotating frame 34 and one end of the rotating plate 35 is fixedly connected with the transmission rod 20, the electric push rod 17 is fixedly connected to the lower end of the support plate 18, the output end of the electric push rod 17 penetrates the support plate 18 and the first guide rail 16 upwards in sequence, the output end of the electric push rod 17 is fixedly connected with the middle part of the lower end of the first sliding block 19, the electric push rod 17 drives the first sliding block 19 to slide up and down in the first guide rail 16, the first sliding block 19 drives the transmission rod 20 to move,The cooperation of the rotating frame 34 and the rotating plate 35 on the transmission rod 20 changes the inclination direction and angle of the guide plate 15 when the transmission rod 20 moves up and down, thereby changing the airflow direction entering the power distribution cabinet through the heat dissipation mechanism 6 and reducing the heat dissipation blind area. The upper end of the cabinet body 7 is fixedly connected with the top dust removal net 13, and the top dust removal net 13 is in communication with the inside of the cabinet body 7. The upper end of the cabinet body 7 is provided with the protective roof 1. The upper end of the cabinet body 7 is welded with metal rods at four corners, and the upper end of the metal rods is fixedly connected with the protective roof 1. The lower end of the protective roof 1 is provided with a downwardly protruding arc surface, and the top dust removal net 13 is located below the middle of the arc surface of the protective roof 1. The outer side ends of the protective roof 1 are bent downward. The arc surface at the lower end of the protective roof 1 reduces the impact of the hot air discharged from the power distribution cabinet on the protective roof 1. Meanwhile, the outer side ends of the protective roof 1 are bent downward to avoid rainwater flowing along the arc surface at the lower end of the protective roof 1 and entering the power distribution cabinet through the top dust removal net 13. The opening end of the cabinet body 7 is provided with the door body 2. One end of the door body 2 is provided with a hinge, and the cabinet body 7 and the door body 2 are connected through the hinge. The two side ends of the cabinet body 7 are provided with a plurality of wire grooves 5 in communication with the inside of the cabinet body 7. The wire grooves 5 are located below the filtering mechanism 9. The wire grooves 5 are used for external cables to enter the power distribution cabinet and be connected with the electrical appliances in the cabinet body 7.

[0029] Working principle: when in use, the first axial flow fan 12 sucks the external air into the first shell 4. The air is filtered through the louvers 3 and the first dust removal net 11. The first axial flow fan 12 sends the filtered air into the cabinet body 7 through the filtering mechanism 9. The air from the bottom of the cabinet body 7 cools the electrical appliances in the cabinet body 7. The second axial flow fan 25 in the heat dissipation mechanism 6 sucks the external air into the air inlet pipe 21 and sends the air into the cabinet body 7 through the angle adjusting mechanism 8. The air from the two sides of the cabinet body 7 cools the electrical appliances in the cabinet body 7. The angle adjusting mechanism 8 drives the first sliding block 19 to slide up and down in the first guide rail 16 through the electric push rod 17. The first sliding block 19 drives the transmission rod 20 to move. The cooperation of the rotating frame 34 and the rotating plate 35 on the transmission rod 20 changes the inclination direction and angle of the guide plate 15 when the transmission rod 20 moves up and down, thereby changing the airflow direction entering the power distribution cabinet through the heat dissipation mechanism 6 and reducing the heat dissipation blind area.

[0030] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments. Within the scope of the knowledge possessed by the ordinary skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A power distribution cabinet that can effectively reduce heat dissipation blind spots, comprising a cabinet body (7), characterized in that, One end of the cabinet (7) is provided with an opening. A hollow first shell (4) is fixedly connected to the lower end of the cabinet (7). A louver (3) and a first dust removal screen (11) are fixedly connected to the inner wall of the first shell (4). The louver (3) passes through one end of the first shell (4). A plurality of first axial flow fans (12) are fixedly connected at equal intervals to the top of the inner wall of the first shell (4). The upper ends of the first axial flow fans (12) pass through the first shell (4) and the cabinet (7) in sequence. The first axial flow fans (12) are located on the side of the first dust removal screen (11) away from the louver (3). A hollow second shell (10) is fixedly connected to the bottom of the inner wall of the cabinet (7). The upper ends of the first axial flow fans (12) are connected to the interior of the second shell (10). A plurality of filter mechanisms (9) are fixedly connected at equal intervals to the bottom of the inner wall of the second shell (10). The lower ends of the plurality of filter mechanisms (9) are respectively The filter mechanism (9) is connected to the first axial flow fan (12). The upper end of the filter mechanism (9) extends upward through the second housing (10). The middle of the two sides of the cabinet (7) is fixedly connected to the heat dissipation mechanism (6). The two ends of the inner wall of the cabinet (7) are fixedly connected to the angle adjustment mechanism (8), and the angle adjustment mechanism (8) extends through the cabinet (7). The angle adjustment mechanism (8) is connected to the heat dissipation mechanism (6). The middle of the upper end of the cabinet (7) is fixedly connected to the top dust removal net (13), and the top dust removal net (13) is connected to the inside of the cabinet (7). A protective canopy (1) is installed on the top of the cabinet (7). Metal rods are welded to the four corners of the upper end of the cabinet (7), and the upper ends of the metal rods are fixedly connected to the protective canopy (1). A door (2) is installed at the open end of the cabinet (7). A hinge is installed at one end of the door (2), and the cabinet (7) and the door (2) are connected by the hinge.

2. The power distribution cabinet as described in claim 1, which can effectively reduce the heat dissipation blind zone, is characterized in that: The heat dissipation mechanism (6) consists of an air inlet pipe (21), a second dust removal screen (22), a first activated carbon filter plate (23), and a mounting plate (24). The air inlet pipe (21) has a rectangular channel inside and is fixedly connected to the middle of the outer end of the cabinet (7). One end of the air inlet pipe (21) passes through the cabinet (7) and is connected to the angle adjustment mechanism (8). The mounting plate (24) has two pieces and is symmetrically fixedly connected to the inner wall of the air inlet pipe (21). A number of second axial flow fans (25) are fixedly connected at equal intervals at one end of the mounting plate (24) and the second axial flow fans (25) are located at the end of the mounting plate (24) facing the cabinet (7). The second dust removal net (22) and the first activated carbon filter plate (23) are fixedly connected to the inner wall of the air inlet pipe (21). The second dust removal net (22) and the first activated carbon filter plate (23) are located on the side of the mounting plate (24) away from the cabinet (7). The first activated carbon filter plate (23) is located between the second dust removal net (22) and the mounting plate (24).

3. A power distribution cabinet as described in claim 2 that can effectively reduce heat dissipation blind spots, characterized in that: The angle adjustment mechanism (8) consists of a first mounting frame (14), a guide plate (15), a first guide rail (16), an electric push rod (17), and a support plate (18). The first mounting frame (14) is fixedly connected to the inner wall of the cabinet (7), and the air inlet pipe (21) is connected to the first mounting frame (14). Several guide plates (15) are provided and are equidistantly installed on the inner wall of the first mounting frame (14), and the several guide plates (15) are parallel to each other. The middle of both ends of the guide plates (15) are respectively fixedly connected to a rotating shaft, and the rotating shaft passes through the first mounting frame (14) and is rotatably connected to the first mounting frame (14). Several L-shaped connecting rods (33) are equidistantly installed on the side end of the first mounting frame (14), and one end of the connecting rod (33) is fixedly connected to the rotating shaft of the guide plate (15). The support plate (18) is fixedly connected to the first mounting frame (14). The first guide rail (16) is fixedly connected to the upper end of the support plate (18), and the first slider (19) is slidably connected in the first guide rail (16). A transmission rod (20) is fixedly connected to one end of the first slider (19). A rotating frame (34) is fixedly connected to one end of the transmission rod (20) facing the connecting rod (33). A rotating plate (35) is rotatably connected in the rotating frame (34), and one end of the rotating plate (35) is fixedly connected to the transmission rod (20). The electric push rod (17) is fixedly connected to the lower end of the support plate (18), and the output end of the electric push rod (17) passes through the support plate (18) and the first guide rail (16) in sequence. The output end of the electric push rod (17) is fixedly connected to the middle of the lower end of the first slider (19).

4. A power distribution cabinet as described in claim 1 that can effectively reduce heat dissipation blind spots, characterized in that: The filtration mechanism (9) consists of a second guide rail (26), a second activated carbon filter plate (27), a second slider (28), a connecting plate (29), a sieve plate (31), and a second mounting frame (32). The second mounting frame (32) is fixedly connected to the upper end of the connecting plate (29), and the outer end of the second mounting frame (32) is on the same plane as the outer end of the connecting plate (29). The second mounting frame (32) extends upward through the upper end of the second housing (10), and the second mounting frame (32) is slidably connected to the second housing (10). The upper end of the second mounting frame (32) is on the same plane as the upper end of the second housing (10). The middle part of the connecting plate (29) has a passage that communicates with the first axial flow fan (12). The channel is located in the middle of the connecting plate (29). The second guide rail (26) is located in the middle of both sides of the second mounting frame (32), and the open ends of the two second guide rails (26) are opposite to each other. The second guide rail (26) is fixedly connected to the bottom of the inner wall of the cabinet (7). The second slider (28) is located in the second guide rail (26) and is slidably connected to the inner wall of the second guide rail (26). The second slider (28) is fixedly connected to the connecting plate (29). The second activated carbon filter plate (27) is fixedly connected to the upper end of the connecting plate (29). The outer end of the second activated carbon filter plate (27) is slidably connected to the inner wall of the second mounting frame (32). The sieve plate (31) is fixedly connected to the upper end of the inner wall of the second mounting frame (32).

5. A power distribution cabinet as described in claim 4 that can effectively reduce heat dissipation blind spots, characterized in that: An adjusting screw (30) is provided at the upper end of the second guide rail (26) on one side of the connecting plate (29). The adjusting screw (30) passes through the second guide rail (26) downward and is rotatably connected to the second guide rail (26). The adjusting screw (30) passes through the middle of the second slider (28) and is threadedly connected to the second slider (28).

6. A power distribution cabinet as described in claim 1 that can effectively reduce heat dissipation blind spots, characterized in that: The cabinet (7) has several wire grooves (5) that communicate with the inside of the cabinet (7) on both sides, and the wire grooves (5) are located below the filter mechanism (9).

7. A power distribution cabinet as described in claim 1 that can effectively reduce heat dissipation blind spots, characterized in that: The lower middle part of the protective canopy (1) is provided as a downward convex arc surface, and the top dust removal net (13) is located below the middle part of the arc surface of the protective canopy (1). The outer ends of the protective canopy (1) are bent downward respectively.

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