Outdoor safety power distribution cabinet

Abstract

The invention belongs to the technical field of power distribution cabinets, and discloses an outdoor safety power distribution cabinet, which comprises a cabinet body and a cabinet cover mounted at the top of the cabinet body, and further comprises a passive heat dissipation mechanism mounted at the top of the cabinet cover; and the active heat dissipation mechanism is communicated with the bottom of the cabinet body. According to the scheme, in the windy and sandy weather, airflow can carry sand grains to flow through the flow guide cover and the cabinet cover, as the top of the flow guide cover and the cabinet cover are arc-shaped, the flow speed of part of airflow at the top of the cabinet cover, namely above the filter screen II, is relatively high, and the airflow passing through the flow guide cover can generate negative pressure, so that suction force is generated to the air in the flow baffle and the cabinet cover; therefore, air in the cabinet body is discharged through the flow baffle and the second filter screen, external air can be slowly supplemented to the cabinet body through the active heat dissipation mechanism, electrical equipment in the cabinet body is cooled, and it is guaranteed that the cooling effect of the passive heat dissipation mechanism on the electrical equipment in the cabinet body is stable.

Description

Technical Field

[0001] The invention belongs to the technical field of power distribution cabinets, in particular to an outdoor safety power distribution cabinet. Background Art

[0002] Outdoor distribution cabinet is a kind of electrical equipment designed for outdoor environment, mainly used for distribution, control and circuit protection of electric energy.

[0003] Power distribution cabinets in special areas, such as deserts, must ensure excellent heat dissipation while also providing dust and sand protection. Operators of power distribution cabinets in these areas typically add fans to the cabinet to improve heat dissipation and install filters at the heat dissipation holes to filter out windblown sand. However, deserts experience extremely frequent wind activity due to the interplay of surface characteristics, drastic temperature fluctuations, pressure gradients, topography, and global circulation. Therefore, when a typical power distribution cabinet is operating, the constant intrusion of wind and sand can cause sand to accumulate outside the filter if the fan stops operating. This can block air exchange between the distribution cabinet and the outside world, causing the temperature inside the cabinet to rise and impacting the electrical equipment inside. Furthermore, if the fan is exhausting air outwards, strong winds in the opposite direction can hinder the fan's exhaust efficiency, preventing the timely discharge of hot air from within the cabinet. Furthermore, the fan in this case can waste energy. Therefore, to address these issues, a safe outdoor power distribution cabinet has been proposed. Summary of the Invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides an outdoor safety distribution cabinet, which solves the problem that the distribution cabinets in desert areas are attacked by wind and sand, resulting in increased internal temperature and low heat dissipation effect.

[0005] To achieve the above object, the present invention provides the following technical solution: an outdoor safety distribution cabinet, comprising a cabinet body and a cabinet cover installed on the top thereof, and further comprising: a passive heat dissipation mechanism installed on the top of the cabinet cover; an active heat dissipation mechanism connected and arranged at the bottom of the cabinet body; The passive heat dissipation mechanism includes a guide cover arranged on the top of the cabinet cover, a gap is left between the bottom of the guide cover and the cabinet cover, an anemometer is fixedly installed on the top of the guide cover, and the top of the cabinet cover is symmetrically fixed with baffles located below the guide cover. The cross-section of the two baffles in the front view direction is funnel-shaped. The cavity of the cabinet cover can be connected to the outside through the baffles. The top of the cabinet cover is equidistantly fixed with arc-shaped spring plates located above the baffles. The top of the cabinet cover is fixed with a second filter located above the arc-shaped spring plates, and the arc-shaped spring plates are used to support the bottom of the second filter. The front view cross-sections of the guide cover, the arc-shaped spring piece and the second filter screen are arched.

[0006] Preferably, the deflector cover comprises a cover body and a deflector grating, the deflector grating is fixedly installed on the top of the cabinet cover at equal intervals, and the cover body is fixedly installed above the deflector grating; the part between the deflector grating and the top of the cabinet cover is divided into several through cavities by the deflector grating.

[0007] Preferably, the cabinet cover is vertically movably mounted on the top of the cabinet body, and a driving mechanism for driving the cabinet cover upward is fixedly mounted on the bottom of the cabinet body; A filter element 1 and a grille 1 are fixedly connected to the bottom of the cabinet cover. The periphery of the filter element 1 is initially located in the cavity at the top of the cabinet. The grille 1 is located at the periphery of the top of the cabinet and its bottom end is lower than the height of the filter element 1.

[0008] Preferably, a U-shaped frame is fixedly installed on the top of the cabinet; a crossbar is fixedly connected to the lower surface of the arc-shaped spring piece, and a magnetic piece is hinged on the outer periphery of the crossbar. The bottom of the magnetic piece is a magnet and can be adsorbed on the top of the U-shaped frame in the initial state; When the cabinet cover moves upward, the U-shaped frame can be separated from the magnetic piece.

[0009] Preferably, the driving mechanism includes a limit rod fixedly installed on the bottom of the cabinet cover, the limit rod passes through the beam part on the top of the cabinet body and extends into the cabinet body cavity and is fixedly connected to a connecting plate, and the bottom of the cabinet body is also fixedly connected to a screw motor, the screw part of the screw motor is vertically arranged and threadedly connected to the connecting plate, and a temperature sensor is also provided on the inner wall of the cabinet.

[0010] Preferably, air holes are provided at the bottom of both sides of the cabinet, and auxiliary heat dissipation components are also provided on both sides of the cabinet; The auxiliary heat dissipation component includes a connecting rod fixed to the bottom of the connecting plate, and a grille combination baffle fixed to the bottom of the connecting rod for sealing the air holes in the initial state, the upper part of the grille combination baffle is a blocking partition and the lower part is a grille, and the outside of the cabinet is also fixed with a grille 2 located on the outside of the grille combination baffle; the lower part of the grille combination baffle and the outward side are fixed with a filter screen 3.

[0011] Preferably, the active heat dissipation mechanism includes a support plate fixedly mounted on the bottom of the cabinet, an air outlet is provided on the support plate, a fan located below the air outlet is fixedly connected to the bottom of the support plate, and a pipe assembly located below the fan and connected to the outside world is fixedly connected to the bottom of the cabinet.

[0012] Preferably, the pipe assembly includes a main pipe installed at the bottom of the cabinet and the bottom of which can extend into the formation, a spiral heat exchange duct is opened on the side wall of the main pipe, a secondary pipe connected to the top of the spiral heat exchange duct is fixedly connected to the top of the main pipe, one end of the secondary pipe extends to the outside of the cabinet and is fixedly connected to a filter plate, the bottom of the spiral heat exchange duct is connected to the central cavity at the bottom of the main pipe, the central cavity at the top of the main pipe can be connected to the cabinet cavity through a fan, and fins are fixedly connected in an annular array to the middle and lower part of the outer periphery of the main pipe; The pipeline assembly also includes a heat insulation sleeve fixedly sleeved on the outer periphery of the main pipeline and located below the cabinet and above the fins.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The above solution is that in windy and sandy weather, the air flow will carry sand through the guide cover and the cabinet cover. Since the top of the guide cover and the cabinet cover are curved, the air flow velocity at the top of the cabinet cover, that is, above the second filter, is relatively fast, so that the air flow passing through the guide cover will generate negative pressure, thereby generating suction on the air in the baffle and the cabinet cover, so that the air inside the cabinet is discharged through the baffle and the second filter, and the outside air will slowly replenish the cabinet through the active heat dissipation mechanism, thereby cooling the electrical equipment in the cabinet. Since the air flow velocity above the second filter is relatively fast and the top of the second filter is curved, the sand remaining on the second filter will be carried by the air flow and blown out from the other end, avoiding the accumulation of sand and reducing the heat dissipation effect, and further ensuring the stability of the cooling effect of the passive heat dissipation mechanism on the electrical equipment in the cabinet. When the anemometer detects that the ambient wind speed is low, the drive mechanism drives the cabinet cover upward to connect the cabinet top with the outside world. At this time, the filter element can isolate the external wind and sand from the cabinet cavity. At the same time, the grille can prevent rainwater from entering the cabinet through the filter element. The drive mechanism also drives the auxiliary heat dissipation component and the cabinet cover to move upward synchronously, so that the air holes on the side of the cabinet are connected with the outside world, thereby improving the heat dissipation effect of the device in a natural state and saving electricity. The above solution detects that when the cabinet cover is raised, the temperature sensor detects that the temperature inside the cabinet continues to exceed the set temperature. At this time, the fan will start, and the external air will be filtered by the filter plate and enter the spiral heat exchange duct through the secondary pipe. Since the soil temperature under the stratum is relatively low, the temperature of the hot air flow in the spiral heat exchange duct will be reduced after heat conduction through the fins and the main pipe and enter the bottom of the main pipe. Finally, the fan will draw the low-temperature gas at the bottom of the main pipe upward into the cabinet to cool the electrical appliances inside it, saving electricity while improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a frontal plane perspective drawing; Figure 3 This is a bottom view of the cabinet cover of the present invention; Figure 4 This is a front cross-sectional structural diagram of the cabinet cover of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the structure inside the cabinet of the present invention; Figure 7 This is a front cross-sectional structural diagram of the cabinet of the present invention; Figure 8 for Figure 7 Enlarged view of point B in the middle; Figure 9 for Figure 7 Enlarged view of point C in the middle; Figure 10 It is a structural schematic diagram of the active heat dissipation mechanism of the present invention.

[0015] In the figure: 1. Cabinet; 11. Cabinet cover; 111. Filter element 1; 112. Grille 1; 12. U-shaped frame; 2. Passive heat dissipation mechanism; 21. Guide cover; 211. Cover; 212. Guide grid; 22. Anemometer; 23. Baffle; 24. Filter element 2; 25. Arc-shaped spring; 251. Crossbar; 252. Magnetic element; 3. Driving mechanism; 31. Limit rod; 32. Connecting plate; 33. Wire Lever motor; 34. Temperature sensor; 4. Auxiliary heat dissipation component; 41. Connecting rod; 42. Grille combination baffle; 421. Filter three; 43. Grille two; 5. Active heat dissipation mechanism; 51. Support plate; 52. Air outlet; 53. Fan; 54. Pipe assembly; 541. Main pipe; 542. Auxiliary pipe; 543. Filter plate; 544. Spiral heat exchange duct; 545. Fins; 546. Insulation sleeve. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] like Figures 1 to 10 As shown, the present invention provides an outdoor safety distribution cabinet, comprising a cabinet body 1 and a cabinet cover 11 installed on the top thereof, and further comprising: a passive heat dissipation mechanism 2 installed on the top of the cabinet cover 11; an active heat dissipation mechanism 5 connected and arranged at the bottom of the cabinet body 1; The passive heat dissipation mechanism 2 includes a guide cover 21 arranged on the top of the cabinet cover 11, with a gap left between the bottom of the guide cover 21 and the cabinet cover 11, an anemometer 22 fixedly installed on the top of the guide cover 21, and a baffle 23 located below the guide cover 21 is symmetrically fixed to the top of the cabinet cover 11. The cross-section of the two baffles 23 in the front view direction is funnel-shaped. The cavity of the cabinet cover 11 can be connected to the outside through the baffle 23. The top of the cabinet cover 11 is equidistantly fixed with arc-shaped spring pieces 25 located above the baffle 23. The top of the cabinet cover 11 is fixed with a second filter 24 located above the arc-shaped spring piece 25. The arc-shaped spring piece 25 is used to support the bottom of the second filter 24; the front view cross-section of the guide cover 21, the arc-shaped spring piece 25 and the second filter 24 is arched; By adopting the above scheme, in windy and sandy weather, the airflow will carry sand particles through the guide cover 21 and the cabinet cover 11. Since the top of the guide cover 21 and the cabinet cover 11 are curved, the airflow velocity at the top of the cabinet cover 11, i.e., above the second filter 24, is relatively fast, so that the airflow passing through the guide cover 21 will generate negative pressure, thereby generating suction on the air in the baffle plate 23 and the cabinet cover 11, so that the air inside the cabinet 1 is discharged through the baffle plate 23 and the second filter 24, and the external air will slowly replenish the cabinet 1 through the active heat dissipation mechanism 5, thereby cooling the electrical equipment in the cabinet 1. Since the air flow velocity above the second filter 24 is relatively fast and the top of the second filter 24 is curved, the sand particles remaining on the second filter 24 will be carried by the airflow and blown out from the other end, thereby avoiding the accumulation of sand particles and reducing the heat dissipation effect, and further ensuring the stability of the cooling effect of the passive heat dissipation mechanism 2 on the electrical equipment in the cabinet 1. It is worth noting that the operator can also place a desiccant in the cabinet 1 to keep the gas inside the cabinet 1 in a dry state.

[0018] like Figures 1-6 As shown, the deflector cover 21 includes a cover body 211 and a deflector grating 212. The deflector grating 212 is fixedly installed on the top of the cabinet cover 11 at equal distances, and the cover body 211 is fixedly installed above the deflector grating 212. The portion between the guide grid 212 and the top of the cabinet cover 11 is divided into a plurality of through cavities by the guide grid 212; By adopting the above solution, the cover body 211 is divided into several through cavities by the guide grid 212, which can ensure the stability of the airflow flowing through the guide cover 21, so as to maintain a stable negative pressure state at the baffle 23 and avoid the airflow from generating vortexes above the filter screen 24.

[0019] like Figure 1-Figure 4 and Figure 8 As shown, the cabinet cover 11 is vertically movably installed on the top of the cabinet body 1, and a driving mechanism 3 for driving the cabinet cover 11 upward is fixedly installed at the bottom of the cabinet body 1; A filter element 111 and a grille 112 are fixed to the bottom of the cabinet cover 11. The periphery of the filter element 111 is initially located in the top cavity of the cabinet 1. The grille 112 is located on the periphery of the top of the cabinet 1 and its bottom height is lower than that of the filter element 111. A U-shaped frame 12 is fixedly installed on the top of the cabinet 1; a crossbar 251 is fixedly connected to the lower surface of the arc-shaped spring piece 25, and a magnetic member 252 is hinged on the outer periphery of the crossbar 251. The bottom of the magnetic member 252 is a magnet and can be adsorbed on the top of the U-shaped frame 12 in the initial state; When the cabinet cover 11 moves upward, the U-shaped frame 12 can be separated from the magnetic member 252; With the above solution, when the anemometer 22 detects that the wind speed is decreasing, the drive mechanism 3 drives the cabinet cover 11 upward, driving the passive heat dissipation mechanism 2 upward as a whole. At this time, the hot air flow inside the cabinet body 1 can be discharged to the outside through the filter element 111; At the same time, during the upward movement of the cabinet cover 11, since the magnetic piece 252 is attracted by the U-shaped frame 12, the arc-shaped spring piece 25 will be pulled and bent during the upward movement, causing the middle part of the filter screen 24 to collapse. When the arc-shaped spring piece 25 cannot bend, it will force the cross bar 251 to drive the magnetic piece 252 upward and away from the U-shaped frame 12. At this time, the arc-shaped spring piece 25 will rebound and shake off and discharge the small amount of sand remaining on the filter screen 24, which can automatically clean the filter screen 24.

[0020] like Figure 2-Figure 4 and Figure 6-Figure 9 As shown, the drive mechanism 3 includes a limit rod 31 fixedly mounted on the bottom of the cabinet cover 11. The limit rod 31 passes through the crossbeam portion at the top of the cabinet 1 and extends into the cavity of the cabinet 1 and is fixedly connected to a connecting plate 32. A screw motor 33 is also fixed to the bottom of the cabinet 1. The screw portion of the screw motor 33 is vertically arranged and threadedly connected to the connecting plate 32. A temperature sensor 34 is also provided on the inner wall of the cabinet 1. Air holes are provided on the bottom of both sides of the cabinet 1, and auxiliary heat dissipation components 4 are also provided on both sides of the cabinet 1; The auxiliary heat dissipation assembly 4 includes a connecting rod 41 fixed to the bottom of the connecting plate 32. The bottom of the connecting rod 41 is fixed to a grille combination baffle 42 for blocking the air holes in the initial state. The upper part of the grille combination baffle 42 is a blocking partition and the lower part is a grille. The outer side of the cabinet 1 is also fixed to a second grille 43 located outside the grille combination baffle 42; the lower part of the grille combination baffle 42 and the outward side are fixed to a third filter 421; With the above solution, when the anemometer 22 detects that the ambient wind force is relatively low, the screw motor 33 drives the connecting plate 32 and the limiting rod 31 to move, and drives the cabinet cover 11 upward to connect the top of the cabinet 1 with the outside world. At this time, the filter element 111 can isolate the external wind and sand from the cabinet 1 cavity. At the same time, the grille 112 can prevent rainwater from entering the cabinet 1 through the filter element 111. The connecting plate 32 also drives the auxiliary heat dissipation component 4 and the cabinet cover 11 to move upward synchronously, so that the air holes on the side of the cabinet 1 are connected with the outside world, thereby improving the heat dissipation effect of the device in a natural state and saving electricity. If the cabinet cover 11 is closed, the grille assembly baffle 42 will also block the air holes to prevent the passive heat dissipation mechanism 2 from being affected during windy and sandy weather.

[0021] like Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 and Figure 10 As shown, the active heat dissipation mechanism 5 includes a support plate 51 fixedly mounted on the bottom of the cabinet 1, an air outlet 52 is formed on the support plate 51, a fan 53 located below the air outlet 52 is fixedly connected to the bottom of the support plate 51, and a duct assembly 54 located below the fan 53 and connected to the outside is fixedly connected to the bottom of the cabinet 1; The duct assembly 54 includes a main duct 541 installed at the bottom of the cabinet 1 and capable of extending its bottom into the stratum. A spiral heat exchange duct 544 is provided on the side wall of the main duct 541. A secondary duct 542 is fixedly connected to the top of the main duct 541 and communicates with the top of the spiral heat exchange duct 544. One end of the secondary duct 542 extends to the outside of the cabinet 1 and is fixedly connected to a filter plate 543. The bottom of the spiral heat exchange duct 544 communicates with the central cavity at the bottom of the main duct 541. The central cavity at the top of the main duct 541 can communicate with the cavity of the cabinet 1 via the fan 53. Fins 545 are also fixedly connected in an annular array to the lower middle portion of the outer periphery of the main duct 541. The pipe assembly 54 further includes a heat-insulating sleeve 546 fixedly mounted on the outer periphery of the main pipe 541 and located below the cabinet 1 and above the fins 545 ; With the above solution, when the cabinet cover 11 is raised and the temperature sensor 34 detects that the temperature inside the cabinet 1 continues to exceed the set temperature, the fan 53 will start, and the external air will be filtered by the filter plate 543 and enter the spiral heat exchange duct 544 through the auxiliary pipe 542. Since the soil temperature under the stratum is relatively low, the temperature of the hot air flow in the spiral heat exchange duct 544 will be reduced after heat conduction through the fins 545 and the main pipe 541 and enter the bottom of the main pipe 541. Finally, the fan 53 will draw the low-temperature air at the bottom of the main pipe 541 upward into the cabinet 1 to cool the electrical appliances inside it, saving electricity while improving the cooling effect. It is worth noting that the heat insulation sleeve 546 can isolate the influence of the shallow soil with too high temperature on the air flow in the spiral heat exchange duct 544.

[0022] The working principle and use process of the present invention: In windy and sandy weather, the airflow will carry sand particles through the guide cover 21 and the cabinet cover 11. Since the top of the guide cover 21 and the cabinet cover 11 are curved, the airflow velocity of the top of the cabinet cover 11, i.e., above the second filter 24, is faster, while the airflow velocity below the second filter 24 is slower. At this time, the airflow passing through the guide cover 21 will generate negative pressure, thereby generating suction on the air in the baffle plate 23 and the cabinet cover 11, so that the air inside the cabinet body 1 and the cabinet cover 11 is discharged through the baffle plate 23 and the second filter 24, and the external air will slowly replenish the cabinet body 1 through the active heat dissipation mechanism 5, thereby cooling the electrical equipment in the cabinet body 1. Since the air flow velocity above the second filter 24 is faster and the top of the second filter 24 is curved, the sand particles remaining on the second filter 24 will be carried by the airflow and blown out from the other end, further ensuring the stability of the cooling effect of the passive heat dissipation mechanism 2 on the electrical equipment in the cabinet body 1. When the anemometer 22 detects that the ambient wind speed is relatively low, the driving mechanism 3 will drive the cabinet cover 11 upward to connect the top of the cabinet 1 with the outside world. At this time, the filter element 111 will isolate the external wind and sand from the connection with the cabinet 1 cavity. At the same time, the grille 112 can prevent rainwater from entering the cabinet 1 through the filter element 111. The driving mechanism 3 will also drive the auxiliary heat dissipation component 4 and the cabinet cover 11 to move upward synchronously, so that the air holes on the side of the cabinet 1 are connected with the outside world, thereby improving the heat dissipation effect of the device in a natural state and saving electricity. When the cabinet cover 11 is raised, if the temperature sensor 34 detects that the internal temperature of the cabinet 1 continues to exceed the set temperature, the fan 53 will run. The external air is filtered by the filter plate 543 and enters the spiral heat exchange duct 544 through the auxiliary pipe 542. Since the soil temperature under the stratum is relatively low, the temperature of the hot air flow in the spiral heat exchange duct 544 will be reduced after heat conduction through the fins 545 and the main pipe 541 and enter the bottom of the main pipe 541. Finally, the fan 53 will draw the low-temperature gas at the bottom of the main pipe 541 upward into the cabinet 1 to cool the electrical appliances inside it, saving electricity while improving the cooling effect.

[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0024] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An outdoor safety distribution cabinet, comprising a cabinet body (1) and a cabinet cover (11) mounted on the top thereof, characterized in that: Also includes: A passive heat dissipation mechanism (2) mounted on the top of the cabinet cover (11); An active heat dissipation mechanism (5) is connected and arranged at the bottom of the cabinet (1); The passive heat dissipation mechanism (2) includes a guide cover (21) arranged on the top of the cabinet cover (11), a gap is left between the bottom of the guide cover (21) and the cabinet cover (11), an anemometer (22) is fixedly installed on the top of the guide cover (21), a baffle (23) located below the guide cover (21) is symmetrically fixed to the top of the cabinet cover (11), and the cross-section of the two baffles (23) in the front view direction is funnel-shaped, and the cavity of the cabinet cover (11) can be connected to the outside through the baffle (23), and the top of the cabinet cover (11) is equidistantly fixed with arc-shaped spring pieces (25) located above the baffle (23), and the top of the cabinet cover (11) is fixed with a filter screen 2 (24) located above the arc-shaped spring piece (25), and the arc-shaped spring piece (25) is used to support the bottom of the filter screen 2 (24); The front cross-sections of the guide cover (21), the arc-shaped spring piece (25) and the second filter screen (24) are arched.

2. The outdoor safety distribution cabinet according to claim 1, characterized in that: The deflector cover (21) comprises a cover body (211) and a deflector grating (212), wherein the deflector grating (212) is fixedly installed at equal intervals on the top of the cabinet cover (11), and the cover body (211) is fixedly installed above the deflector grating (212); The portion between the guide grid (212) and the top of the cabinet cover (11) is divided into a plurality of through cavities by the guide grid (212).

3. The outdoor safety distribution cabinet according to claim 1, characterized in that: The cabinet cover (11) is vertically movably mounted on the top of the cabinet body (1), and a driving mechanism (3) for driving the cabinet cover (11) upward is fixedly mounted on the bottom of the cabinet body (1); A filter element 1 (111) and a grille 1 (112) are fixedly connected to the bottom of the cabinet cover (11); the periphery of the filter element 1 (111) is initially located in the top cavity of the cabinet body (1); the grille 1 (112) is located at the periphery of the top of the cabinet body (1) and the bottom end height is lower than the height of the filter element 1 (111).

4. The outdoor safety distribution cabinet according to claim 3, characterized in that: A U-shaped frame (12) is fixedly mounted on the top of the cabinet (1); A crossbar (251) is fixedly connected to the lower surface of the arc-shaped spring piece (25), and a magnetic piece (252) is hingedly connected to the outer periphery of the crossbar (251). The bottom of the magnetic piece (252) is a magnet and can be adsorbed on the top of the U-shaped frame (12) in an initial state. When the cabinet cover (11) moves upward, the U-shaped frame (12) can be separated from the magnetic member (252).

5. The outdoor safety distribution cabinet according to claim 3, characterized in that: The driving mechanism (3) comprises a limiting rod (31) fixedly mounted on the bottom of the cabinet cover (11), the limiting rod (31) passing through the crossbeam portion at the top of the cabinet cover (1) and extending into the cavity of the cabinet (1) and fixedly connected to a connecting plate (32), a screw motor (33) is also fixedly connected to the bottom of the cabinet (1), a screw portion of the screw motor (33) is vertically arranged and threadedly connected to the connecting plate (32), and a temperature sensor (34) is also provided on the inner wall of the cabinet (1).

6. The outdoor safety distribution cabinet according to claim 3, characterized in that: The cabinet body (1) is provided with air holes at the bottom of both sides, and auxiliary heat dissipation components (4) are also provided on both sides of the cabinet body (1); The auxiliary heat dissipation assembly (4) includes a connecting rod (41) fixed to the bottom of the connecting plate (32), the bottom of the connecting rod (41) is fixed with a grille combination baffle (42) for blocking the air holes in the initial state, the upper part of the grille combination baffle (42) is a blocking partition and the lower part is a grille, and the outer side of the cabinet (1) is also fixed with a second grille (43) located outside the grille combination baffle (42); A filter screen 3 (421) is fixedly connected to the lower part of the grille combination baffle (42) and the outward side.

7. The outdoor safety distribution cabinet according to claim 6, characterized in that: The active heat dissipation mechanism (5) comprises a support plate (51) fixedly mounted on the bottom of the cabinet (1), an air outlet (52) being provided on the support plate (51), a fan (53) located below the air outlet (52) being fixedly connected to the bottom of the support plate (51), and a pipe assembly (54) located below the fan (53) and communicating with the outside world being fixedly connected to the bottom of the cabinet (1).

8. The outdoor safety distribution cabinet according to claim 7, characterized in that: The pipe assembly (54) includes a main pipe (541) installed at the bottom of the cabinet (1) and the bottom of which can extend into the stratum, a spiral heat exchange air duct (544) is provided on the side wall of the main pipe (541), a secondary pipe (542) is fixedly connected to the top of the main pipe (541) and is in communication with the top of the spiral heat exchange air duct (544), one end of the secondary pipe (542) extends to the outside of the cabinet (1) and is fixedly connected to a filter plate (543), the bottom of the spiral heat exchange air duct (544) is in communication with the central cavity at the bottom of the main pipe (541), the central cavity at the top of the main pipe (541) can be in communication with the cabinet (1) cavity through the fan (53), and fins (545) are fixedly connected in an annular array to the middle and lower part of the outer periphery of the main pipe (541); The pipe assembly (54) further comprises a heat-insulating sleeve (546) fixedly sleeved on the outer periphery of the main pipe (541) and located below the cabinet (1) and above the fins (545).

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