A power distribution cabinet

Abstract

The present application relates to the field of electric power technology, and provides a power distribution cabinet, including a cabinet, a filter and a knocking structure, wherein first air holes are provided on opposite sides of the cabinet, and the filter covers the surface of the first air hole; the knocking structure includes a knocking piece, a striking piece, a rotating shaft and blades, the rotating shaft is rotatably mounted on the cabinet, and the extension direction of the rotating shaft is in the same direction as the extension direction of the first air hole; the blades are mounted on the rotating shaft and located on the outer wall of the cabinet, the knocking piece is mounted on the rotating shaft, the striking piece is mounted on the inner wall of the cabinet, and the knocking piece is used to drive the striking piece to knock on the filter. A power distribution cabinet of the present application utilizes external wind force to make the striking piece knock on the filter, which can reduce the possibility of the filter being blocked due to the staff not cleaning the filter in time, and maintain the ventilation effect of the first air hole.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to a power distribution cabinet. Background Art

[0002] A power distribution cabinet is a commonly used equipment box for power system layout or power configuration for industrial production. It is mainly used to monitor or control the power status. Generally, power switches, relays and other electronic devices in the same area are distributed in the cabinet for use.

[0003] When placing the distribution cabinet outside, in order to prevent the distribution cabinet from being damaged in an environment with too high temperature for a long time, multiple ventilation holes are usually opened on the outer wall of the distribution cabinet to dissipate heat from the electronic components inside the distribution cabinet; and filters are covered on the ventilation holes to prevent dust and foreign objects from entering. However, after long-term use, dust is easily accumulated on the filter, affecting the ventilation effect. Summary of the invention

[0004] In order to maintain the air permeability of the filter, the present application provides a power distribution cabinet.

[0005] The power distribution cabinet provided in this application adopts the following technical solution:

[0006] A power distribution cabinet comprises a cabinet body, a filter and a knocking structure, wherein first air holes are opened on opposite sides of the cabinet body, and the filter covers the surface of the first air hole; the knocking structure comprises a knocking piece, a striking piece, a rotating shaft and blades, the rotating shaft is rotatably mounted on the cabinet body, and the extension direction of the rotating shaft is in the same direction as the width direction of the first air hole; the blade is mounted on the rotating shaft and located on the outer wall of the cabinet body, the knocking piece is mounted on the rotating shaft, the striking piece is mounted on the inner wall of the cabinet body, and the knocking piece is used to drive the striking piece to knock the filter.

[0007] By adopting the above-mentioned technical solution, when external wind and airflow blow through the blades, the blades will drive the rotating shaft to rotate; and as the rotating shaft rotates, the position of the striking piece can change and contact with the striking piece, so that the striking piece is forced to strike the filter, thereby shaking off the accumulated dust on the filter, and then achieving the purpose of automatically cleaning the filter; this method utilizes external wind force to make the striking piece strike the filter, which can reduce the possibility of the filter being blocked due to the staff's failure to clean the filter in time, thereby maintaining the ventilation effect of the first air hole.

[0008] Optionally, the knocking member includes a movable rod, a first spring and a sliding frame, the sliding frame is installed inside the cabinet, and the movable rod is slidably installed on the sliding frame; the first spring is sleeved on the rotating shaft and the outer wall of the movable rod, and the first spring is used to drive the movable rod to move toward one side of the rotating shaft; a guide portion is provided between the rotating shaft and the movable rod, and the guide portion is used to drive the movable rod to move toward a side away from the rotating shaft.

[0009] By adopting the above technical solution, when the external wind force drives the rotating shaft to rotate, the guide part can drive the movable rod to slide on the sliding frame and move toward the side away from the rotating shaft, so as to drive the movable rod to contact the striking member; and when the guide part drives the movable rod to move to the maximum distance, the elastic force of the first spring can drive the movable rod to return to the original state. In this way, the movable rod can repeatedly contact the striking member, so that the striking member can knock on the filter screen multiple times and knock down the dust.

[0010] Optionally, the guide portion includes a plurality of first plug-in blocks and a plurality of second plug-in blocks, all of the first plug-in blocks are installed at one end of the rotating shaft close to the movable rod, and all of the first plug-in blocks are arranged at intervals around the axis of the rotating shaft; all of the second plug-in blocks are installed at one end of the movable rod, and the second plug-in blocks are plugged between two adjacent first plug-in blocks; a first guide surface is provided on one side of the first plug-in block, and a second guide surface is provided on one side of the second plug-in block, and the first guide surface cooperates with the second guide surface.

[0011] By adopting the above technical solution, the elastic force of the first spring can drive the second plug-in block to be plugged into the adjacent two ends, and during the rotation of the rotating shaft, the first guide surface and the second guide surface assembly approach and contact, thereby driving the movable rod to move to the side away from the rotating shaft; at the same time, the first spring is compressed to store elastic potential energy. When the movable rod moves to the moving position, the first guide surface and the second guide surface separate from each other, and the first spring releases the elastic potential energy at this time, driving the movable rod to quickly reset. This reciprocating motion enables the movable rod to periodically contact the striking member so that the striking member can knock the filter.

[0012] After the external wind enters the cabinet from the first air hole on one side, the heat in the cabinet is taken out from the first air hole on the other side. Since the first guide surface is arranged on one side of the first plug-in block, the rotating shaft can rotate unidirectionally. That is, after the wind enters from the first air hole on one side, the filter on the first air hole on the other side can be struck by the striking member, so that the wind in the cabinet flows out to the outside from the first air hole on the other side, and at the same time, the dust on the filter is taken out to the outside. This reduces the possibility of dust entering the cabinet and affecting the service life of electronic devices.

[0013] Optionally, a guide groove is provided on one side of the rotating shaft close to the movable rod, a guide rod is fixed to one end of the movable rod, and the guide rod is inserted into the guide groove.

[0014] By adopting the above technical solution, the cooperation between the guide rod and the guide groove can increase the contact area between the rotating shaft and the movable rod, thereby improving the stability of the movable rod moving on the sliding frame.

[0015] Optionally, the striking member includes a striking plate and a second spring, the striking plate is movably mounted on the inner wall of the cabinet, two ends of the second spring are respectively connected to the striking plate and the inner wall of the cabinet, and the elastic force of the second spring is used to drive the striking plate to move toward a side away from the filter; a third guide surface is provided at one end of the striking plate close to the movable rod, and the third guide surface is used to abut against the movable rod, and the third guide surface is used to drive the striking plate to contact the filter.

[0016] By adopting the above-mentioned technical solution, when the movable rod moves toward one side of the striking plate, the movable rod can contact with the third guide surface, so that the striking plate contacts with the filter and strikes the filter under the guidance of the third guide surface; and when the movable rod cancels the contact with the striking plate, the striking plate returns to its original state under the elastic force of the second spring; so that the striking plate repeatedly strikes the filter, reducing the possibility of clogging of the mesh of the filter.

[0017] Optionally, a rubber cushion layer is provided on one side of the striking plate close to the filter screen.

[0018] By adopting the above technical solution and providing a rubber cushion layer, the rubber cushion layer is in flexible contact with the filter screen, thereby increasing the striking effect of the striking plate on the filter screen and reducing the damage to the filter screen.

[0019] Optionally, a protective cover is provided on the outer wall of the cabinet, the blade cover is provided inside the protective cover, and the protective cover has a plurality of mesh holes.

[0020] By adopting the above-mentioned technical solution and setting a protective cover, it is possible to provide protection for the blades, reduce the chances of people coming into contact with the blades and causing damage to the blades, thereby maintaining the striking effect of the striking member on the filter and maintaining the cleaning effect on the filter.

[0021] Optionally, two partitions are provided inside the cabinet, and the electronic device is placed between the two partitions; a ventilation cavity is formed between the partition and the inside of the cabinet, the first air hole is connected to the ventilation cavity, and a second air hole is provided on the side of the ventilation cavity away from the first air hole.

[0022] By adopting the above technical solution, when it rains outdoors, it is difficult for rainwater from the outside to splash directly into between the two partition plates through the first air vents, thereby reducing the situation where rainwater directly contacts electronic devices and causes damage to the electronic devices.

[0023] Optionally, two air guide plates are arranged in the ventilation cavity at intervals along the height direction, the two air guide plates are located between the first air hole and the second air hole, and the distance between the two air guide plates gradually decreases from the side close to the first air hole to the side close to the second air hole.

[0024] By adopting the above technical solution, when the wind passes through the first air hole and enters between the two air guide plates, the distance between the two air guide plates gradually decreases, and the wind can be compressed and accelerated to a certain extent, thereby effectively exchanging heat with the interior of the cabinet and improving the heat dissipation effect.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. By setting a knocking structure, when external wind and air flow blow through the blades, the blades will drive the rotating shaft to rotate; and as the rotating shaft rotates, the position of the knocking piece can change and contact the knocking piece, so that the knocking piece is forced to knock the filter screen, thereby shaking off the accumulated dust on the filter screen, thereby achieving the purpose of automatically cleaning the filter screen; this method uses the external wind force to make the knocking piece knock the filter screen, which can reduce the possibility of the filter screen being blocked due to the staff's failure to clean the filter screen in time, and maintain the ventilation effect of the first air hole;

[0027] 2. By setting the rubber cushion layer, the rubber cushion layer and the filter screen are in flexible contact, which increases the striking effect of the striking plate on the filter screen and reduces the damage to the filter screen;

[0028] 3. By setting up two air guide plates, when the wind passes through the first air vent and enters between the two air guide plates, the distance between the two air guide plates gradually decreases, and the wind can be compressed and accelerated to a certain extent, thereby effectively exchanging heat with the inside of the cabinet and improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a partial cross-sectional view of the cabinet of Example 1;

[0030] Figure 2 is a schematic structural diagram of the striking member of Example 1;

[0031] Figure 3 is a schematic structural diagram of the guide portion of Example 1;

[0032] Figure 4 yes Figure 1 A local enlarged view of point A;

[0033] Figure 5 is a partial cross-sectional view of the cabinet of Example 2;

[0034] Figure 6 is a schematic structural diagram of a baffle in Example 3;

[0035] Figure 7 yes Figure 6 A partial enlarged view of point B.

[0036] Description of reference numerals: 1, cabinet; 11, first air vent; 12, protective cover; 2, filter; 3, knocking structure; 31, knocking member; 311, movable rod; 312, first spring; 313, sliding frame; 314, guide rod; 315, fixing ring; 32, striking member; 321, striking plate; 322, second spring; 323, third guide surface; 33, rotating shaft; 331, guide groove; 34, blade; 35, mounting plate ; 351. sliding groove; 36. rubber cushion; 4. baffle; 41. connecting plate; 42. rotating shaft; 43. gear; 44. cylinder; 45. rack; 5. guide part; 51. first plug-in block; 52. second plug-in block; 53. first guide surface; 54. first positioning surface; 55. second guide surface; 56. second positioning surface; 6. partition plate; 61. ventilation cavity; 62. accommodating cavity; 63. second air vent; 64. air guide plate. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-7 This application is described in further detail.

[0038] Embodiment 1:

[0039] An embodiment of the present application discloses a power distribution cabinet.

[0040] Reference Figure 1 A power distribution cabinet comprises a cabinet 1, a filter 2 and a knocking structure 3, wherein electronic devices are placed inside the cabinet 1; a plurality of first air holes 11 are provided on opposite sides of the cabinet 1, and all the first air holes 11 are arranged at intervals along the height direction of the cabinet 1, and the extension direction of the first air holes 11 is in the same direction as the width direction of the cabinet 1; the first air holes 11 are arranged to facilitate external cold air to enter the cabinet 1 and perform heat exchange with the interior of the cabinet 1.

[0041] Reference Figure 1 The filter 2 covers the surface of the first air hole 11. By setting the filter 2, it is possible to reduce the external dust and insects from entering the cabinet 1 through the first air hole 11, thereby reducing the possibility of damage to electronic devices. The knocking structure 3 is used to knock off the dust on the surface of the filter 2 to reduce the blockage of the filter 2 and the impact on the cooling effect of the filter 2.

[0042] Reference Figure 2 The knocking structure 3 includes a knocking piece 31, a striking piece 32, a rotating shaft 33 and blades 34. The rotating shaft 33 is rotatably installed on the outer wall of the cabinet 1, and one end of the rotating shaft 33 passes through the cabinet 1 and enters the interior of the cabinet 1; the blades 34 are provided in multiple groups, and all the blades 34 are arranged at intervals along the circumference of the rotating shaft 33; when the external wind blows the blades 34, the rotating shaft 33 can be rotated.

[0043] Reference Figure 1Two protective covers 12 are fixed to the outer wall of the cabinet 1. The protective covers 12 are used to cover the blades 34 of all the knocking structures 3 on one side of the cabinet 1. The anti-slip cover has multiple mesh holes, so that the wind from the outside can enter the interior through the protective cover 12 to drive the blades 34 to rotate. By setting the protective cover, the blades 34 can be protected, reducing the situation where people come into contact with the blades 34 and cause damage to the blades 34.

[0044] Reference Figure 3 A guide groove 331 is provided at one end of the rotating shaft 33 close to the cabinet 1, and the knocking member 31 is connected to the rotating shaft 33 through a guide portion 5. The guide portion 5 is used to drive the knocking member 31 to move toward the side away from the rotating shaft 33, and the sliding direction of the knocking member 31 is in the same direction as the extension direction of the rotating shaft 33. The guide portion 5 includes a plurality of first plug-in blocks 51 and a plurality of second plug-in blocks 52. All the first plug-in blocks 51 are fixed to one end of the rotating shaft 33 close to the cabinet 1, and all the first plug-in blocks 51 are circumferentially spaced around the axis of the rotating shaft 33. One side of the first plug-in block 51 is set as a first guide surface 53, and the other side of the first plug-in block 51 is set as a first positioning surface 54. The distance between the first guide surface 53 and the first positioning surface 54 gradually decreases from the end facing the rotating shaft 33 to the end away from the rotating shaft 33.

[0045] Reference Figure 3 All the second plug-in blocks 52 are installed on the knocking member 31, and all the second plug-in blocks 52 are circumferentially spaced around the axis of the knocking member 31. The second plug-in block 52 is used to be plugged between two adjacent first plug-in blocks 51. A second guide surface 55 is provided on one side of the second plug-in block 52, and a second positioning surface 56 is provided on the other side of the second plug-in block 52. The spacing between the second guide surface 55 and the second positioning surface 56 gradually decreases from the side facing the knocking member 31 to the side away from the knocking member 31. The first guide surface 53 is used to cooperate with the second guide surface 55.

[0046] When the rotating shaft 33 is subjected to a force that causes the first guide surface 53 and the second guide surface 55 to press against each other, the first guide surface 53 and the second guide surface 55 can slide relative to each other to keep the rotating shaft 33 rotating normally and guide the knocking member 31 to move; if the rotating shaft 33 is subjected to a force that causes the first positioning surface 54 and the second positioning surface 56 to press against each other, since the extension direction of the first positioning surface 54 and the second positioning surface 56 is in the same direction as the sliding direction of the knocking member 31, the rotating shaft 33 cannot rotate to guide the knocking member 31 to move, that is, the rotating shaft 33 can only rotate in one direction.

[0047] In this embodiment, the first guide surfaces 53 of the first plug-in blocks 51 on opposite sides of the cabinet 1 face oppositely, that is, the rotation directions of the rotating shafts 33 on opposite sides of the cabinet 1 are opposite. When external wind enters the interior through the first air vents 11 on one side of the cabinet 1, the rotating shaft 33 on the other side of the cabinet 1 rotates under the action of the wind.

[0048] Reference Figure 2 The knocking member 31 includes a movable rod 311, a first spring 312, a sliding frame 313 and a guide rod 314. The sliding frame 313 is fixed to the inner wall of the cabinet 1, and the sliding frame 313 is located at the bottom of the rotating shaft 33. The movable rod 311 is slidably mounted on the sliding frame 313, and the second plug-in block 52 is fixed to one end of the movable rod 311 close to the rotating shaft 33. The guide rod 314 is fixed to one end of the movable rod 311, and one end of the guide rod 314 is plugged into the guide groove 331. The cooperation between the guide rod 314 and the guide groove 331 can increase the contact area between the movable rod 311 and the rotating shaft 33, and improve the stability of the movable rod 311 installed on the rotating shaft 33.

[0049] The outer wall of the movable rod 311 is provided with a fixing ring 315, and the first spring 312 is sleeved on the movable rod 311 and the outer wall of the rotating shaft 33, and the two ends of the first spring 312 are respectively fixed to the fixing ring 315 and the inside of the cabinet 1. The elastic force of the first spring 312 is used to drive the movable rod 311 to move toward one side of the rotating shaft 33, and to drive the second plug-in block 52 to be plugged between two adjacent first plug-in blocks 51.

[0050] When the external wind force drives the rotating shaft 33 to rotate, the first guide surface 53 abuts against the second guide surface 55, and under the guidance of the first guide surface 53 and the second guide surface 55, the movable rod 311 is driven to move toward the side away from the rotating shaft 33, so that the movable rod 311 contacts with the striking member 32 so that the striking member 32 strikes the filter 2, and at the same time the first spring 312 is stretched to store elastic potential energy; when the first guide surface 53 and the second guide surface 55 are separated from each other, the first spring 312 releases the elastic potential energy, driving the movable rod 311 to quickly reset, and this reciprocating motion causes the movable rod 311 to periodically contact with the striking member 32 so that the striking member 32 strikes the filter 2.

[0051] Reference Figure 4The striking member 32 includes a striking plate 321 and a second spring 322. Two mounting plates 35 are provided on the inner wall of the cabinet 1. The two mounting plates 35 are respectively located on both sides of the length of the first air vent 11. A sliding groove 351 is provided on the side where the two mounting plates 35 are close to each other. Both ends of the striking plate 321 are slidably installed in the two sliding grooves 351. In this embodiment, the thickness of the striking plate 321 is greater than the thickness of the mounting plate 35. A third guide surface 323 is provided at one end of the striking plate 321 close to the movable rod 311. The third guide surface 323 is used to abut against one end of the movable rod 311 away from the rotating shaft 33 to guide the striking plate 321 to move toward one side of the filter 2. A rubber pad 36 is provided on the side of the striking plate 321 close to the filter 2. The rubber pad 36 is used to contact the filter 2.

[0052] The two ends of the second spring 322 are respectively connected to the striking plate 321 and the inner wall of the sliding groove 351. The elastic force of the second spring 322 forces the striking plate 321 to move toward the side away from the second spring 322, that is, the elastic force of the second spring 322 drives the side of the striking plate 321 away from the filter 2 to protrude from the side of the mounting plate 35 away from the filter 2.

[0053] When the movable rod 311 moves toward one side of the striking plate 321 and contacts the third guide surface 323, the striking plate 321 moves toward one side of the filter 2 under the guidance of the third guide surface 323 so that the rubber pad 36 contacts the filter 2; and when the movable rod 311 cancels the contact with the striking plate 321, the striking plate 321 returns to its original state under the elastic force of the second spring 322; thereby, the striking plate 321 can repeatedly strike the filter 2 to knock off the dust on the surface of the filter 2.

[0054] The implementation principle of Example 1 of the present application is:

[0055] When external wind and airflow blow through the blades 34, the blades 34 will drive the rotating shaft 33 to rotate; and as the rotating shaft 33 rotates, the movable rod 311 can be driven to move toward one side of the striking plate 321, so that the striking plate 321 is forced to strike the filter 2, thereby shaking off the accumulated dust on the filter 2, and then achieving the purpose of automatically cleaning the filter 2; this method uses the external wind force to make the striking member 32 strike the filter 2, which can reduce the possibility of the filter 2 being blocked due to the staff's failure to clean the filter 2 in time, thereby maintaining the ventilation effect of the first air hole 11.

[0056] In addition, after the external air enters the cabinet 1 from the first air hole 11 on one side, the heat in the cabinet 1 will be brought out from the first air hole 11 on the other side, that is, the first air hole 11 on one side of the cabinet 1 is an air inlet, and the first air hole 11 on the other side of the cabinet 1 is an air outlet; and because the rotation directions of the rotating shafts 33 on the opposite sides of the cabinet 1 are opposite, after the wind enters from the first air hole 11 on one side, the filter 2 on the first air hole 11 on the other side can be struck by the striking member 32, and in the process of the wind in the cabinet 1 flowing out to the outside from the first air hole 11 on the other side, the dust on the filter 2 is brought out to the outside, thereby reducing the possibility of dust entering the cabinet 1 and affecting the service life of electronic devices.

[0057] Embodiment 2:

[0058] An embodiment of the present application discloses a power distribution cabinet.

[0059] Reference Figure 5 The difference between Example 2 of the present application and Example 1 is that: two partition plates 6 are arranged inside the cabinet 1, and a storage cavity 62 for storing electronic devices is formed between the two partition plates 6, and a ventilation cavity 61 is formed between the partition plates 6 and the inside of the cabinet 1, and the first air holes 11 on the opposite sides of the cabinet 1 are respectively connected with the two ventilation cavities 61; a second air hole 63 for connecting with the storage cavity 62 is opened on the side of the ventilation cavity 61 away from the first air hole 11, and the second air hole 63 is arranged opposite to the first air hole 11.

[0060] When it rains outdoors, it is difficult for rainwater from the outside to splash directly into the accommodating cavity 62 through the first air holes 11, thereby reducing the situation where rainwater directly contacts electronic components and causes damage to the electronic components.

[0061] Two air guide plates 64 are arranged in the ventilation cavity 61, and the two air guide plates 64 are located between the first air hole 11 and the second air hole 63, and the two air guide plates 64 are arranged at intervals along the height direction of the ventilation cavity 61; the distance between the two air guide plates 64 gradually decreases from one end of the first air hole 11 to one end of the second air hole 63.

[0062] The implementation principle of Example 2 of the present application is:

[0063] In the process of wind passing through the first air vent 11 and entering between the two air guide plates 64, the wind is compressed and accelerated to a certain extent because the distance between the two air guide plates 64 is gradually reduced, and can effectively exchange heat with the inside of the cabinet 1, thereby improving the heat dissipation effect. In addition, the air guide plate 64 located at the bottom is tilted, which can further reduce the splashing of rainwater into the accommodating cavity 62 through the first air vent 11, and further reduce the possibility of rainwater directly contacting the electronic device and causing damage to the electronic device.

[0064] Embodiment 3:

[0065] An embodiment of the present application discloses a power distribution cabinet.

[0066] Reference Figure 6 and Figure 7 The difference between the embodiment 3 of the present application and the embodiment 1 is that: a baffle 4 is rotatably mounted on the outer wall of the cabinet 1, and the baffle 4 is used to cover the surface of the first air hole 11; two connecting plates 41 are fixed to the outer wall of the cabinet 1, and the baffle 4 is rotatably mounted between the two connecting plates 41 through a rotating shaft 42, one end of the rotating shaft 42 is passed through the connecting plate 41 and exposed to the outside, and a gear 43 is fixed to the outer wall of the rotating shaft 42. The cabinet 1 is provided with a cylinder 44, and a rack 45 is fixed to the movable plug of the cylinder 44, and the movable direction of the rack 45 is in the same direction as the height direction of the cabinet 1, and the rack 45 is meshed with all the gears 43 on one side of the cabinet 1.

[0067] By driving the cylinder 44, the gear 43 and the rack 45 are meshed and rotated, and the baffle 4 can be rotated because the gear 43 is connected to the rack 45. Under normal conditions, the cylinder 44 is started to drive the baffle 4 to be in a vertical state with the side wall of the cabinet 1, which can maintain the maximum air intake of the first air hole 11 and improve the heat dissipation effect inside the cabinet 1; on rainy days, the cylinder 44 can be driven again to make the baffle 4 cover the first air hole 11, reducing the damage caused by external rainwater entering the cabinet 1 through the first air hole 11 and causing damage to electronic devices.

[0068] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A power distribution cabinet, Features: The cabinet (1) comprises a cabinet body (1), a filter screen (2) and a knocking structure (3); the cabinet body (1) is provided with first air holes (11) on opposite sides, and the filter screen (2) covers the surface of the first air holes (11); the knocking structure (3) comprises a knocking member (31), a striking member (32), a rotating shaft (33) and a blade (34); the rotating shaft (33) is rotatably mounted on the cabinet body (1), and the extension direction of the rotating shaft (33) is in the same direction as the extension direction of the first air holes (11); the blade (34) is mounted on the rotating shaft (33) and is located on the outer wall of the cabinet body (1); the knocking member (31) is mounted on the rotating shaft (33), and the striking member (32) is mounted on the inner wall of the cabinet body (1); the knocking member (31) is used to drive the striking member (32) to knock the filter screen (2); The knocking member (31) comprises a movable rod (311), a first spring (312) and a sliding frame (313); the sliding frame (313) is installed inside the cabinet (1), and the movable rod (311) is slidably installed on the sliding frame (313); the first spring (312) is sleeved on the rotating shaft (33) and the outer wall of the movable rod (311), and the first spring (312) is used to drive the movable rod (311) to move toward one side of the rotating shaft (33); a guide portion (5) is provided between the rotating shaft (33) and the movable rod (311), and the guide portion (5) is used to drive the movable rod (311) to move toward a side away from the rotating shaft (33); The guide portion (5) comprises a plurality of first plug-in blocks (51) and a plurality of second plug-in blocks (52); all the first plug-in blocks (51) are mounted on one end of the rotating shaft (33) close to the movable rod (311), and all the first plug-in blocks (51) are arranged at intervals around the axis of the rotating shaft (33); all the second plug-in blocks (52) are mounted on one end of the movable rod (311), and the second plug-in blocks (52) are plugged between two adjacent first plug-in blocks (51); a first guide surface (53) is provided on one side of the first plug-in block (51), and a second guide surface (55) is provided on one side of the second plug-in block (52); the first guide surface (53) matches the second guide surface (55); The striking member (32) comprises a striking plate (321) and a second spring (322); the striking plate (321) is movably mounted on the inner wall of the cabinet (1); the two ends of the second spring (322) are respectively connected to the striking plate (321) and the inner wall of the cabinet (1); the elastic force of the second spring (322) is used to drive the striking plate (321) to move toward a side away from the filter (2); a third guide surface (323) is provided at one end of the striking plate (321) close to the movable rod (311); the third guide surface (323) is used to abut against the movable rod (311); and the third guide surface (323) is used to drive the striking plate (321) to contact the filter (2).

2. A power distribution cabinet according to claim 1, Features: A guide groove (331) is provided on one side of the rotating shaft (33) close to the movable rod (311); a guide rod (314) is fixed to one end of the movable rod (311); and the guide rod (314) is inserted into the guide groove (331).

3. A power distribution cabinet according to claim 1, Features: A rubber cushion layer (36) is provided on one side of the striking plate (321) close to the filter screen (2).

4. A power distribution cabinet according to claim 1, Features: The outer wall of the cabinet (1) is provided with a protective cover (12), the blades (34) are covered inside the protective cover (12), and the protective cover (12) has a plurality of mesh holes.

5. A power distribution cabinet according to claim 1, Features: Two partition plates (6) are arranged inside the cabinet (1), and the electronic device is placed between the two partition plates (6); a ventilation cavity (61) is formed between the partition plates (6) and the inside of the cabinet (1); the first air hole (11) is connected to the ventilation cavity (61); and a second air hole (63) is provided on a side of the ventilation cavity (61) away from the first air hole (11).

6. A power distribution cabinet according to claim 5, Features: Two air guide plates (64) are arranged in the ventilation cavity (61) at intervals along the height direction, the two air guide plates (64) are located between the first air hole (11) and the second air hole (63), and the spacing between the two air guide plates (64) gradually decreases from a side close to the first air hole (11) to a side close to the second air hole (63).

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