Low-voltage switch power distribution cabinet

Abstract

The invention discloses a low-voltage switch power distribution cabinet, and relates to the technical field of power distribution cabinets. Comprising a cabinet body, a dehumidification channel is arranged at the inner bottom of the cabinet body, one end of the dehumidification channel extends to the outside of one side of the cabinet body, an inclined block plug is arranged in the other end of the dehumidification channel, and a through hole is formed in the inclined block plug. Water in air can be effectively removed through a demisting plate and moisture absorption silica gel, wet air is prevented from entering the cabinet body, the wet air can be filtered through a filter screen, dust is prevented from entering the cabinet body, and the moisture absorption silica gel can be dried and repeatedly used through a heating pipe; the moisture absorption silica gel drying cabinet prevents hot air from entering the cabinet body in the process of drying the moisture absorption silica gel, wraps the dehumidification channel through the heat insulation cylinder, prevents heat of the heating pipe from being transmitted to the interior of the cabinet body through the dehumidification channel, and greatly reduces faults of electrical elements in the cabinet body caused by high heat or humid air.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, in particular to a low-voltage switch power distribution cabinet. Background Art

[0002] The rated current of low voltage switch distribution cabinet is AC 50Hz, rated voltage 380V distribution system is used for power, lighting and power distribution power conversion and control. This product has the characteristics of strong breaking capacity, good dynamic thermal stability, flexible electrical scheme, convenient combination, series, novel structure, etc.

[0003] At present, the heat dissipation method adopted by low-voltage switch distribution cabinets is generally fan heat dissipation. However, there are few failures due to the failure of heat from components inside the distribution cabinet to be dissipated in time. Most failures are still affected by installation environment factors, such as areas with high humidity or continuous rainy days. When humid air enters the distribution cabinet, when the distribution box is in a humid state, electrical equipment and lines are easily affected by moisture, resulting in reduced insulation performance, thereby increasing the risk of electric shock and short circuit. At the same time, due to the reduced resistance of electrical equipment and lines in a humid environment, the current is easily too large, causing short circuits, fires and other serious accidents. In addition, a humid environment may also cause metal parts inside the distribution box to rust, thereby affecting the normal operation and service life of the equipment. Summary of the invention

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a low-voltage switch distribution cabinet, comprising a cabinet, a dehumidification channel is arranged at the inner bottom of the cabinet, one end of the dehumidification channel extends to the outside of one side of the cabinet, an inclined block plug is arranged inside the other end, a through hole is arranged inside the inclined block plug, a notch connected to the through hole is arranged at the bottom of one side of the cabinet, an inclined channel is arranged at one end of the dehumidification channel, a plurality of demisting plates are arranged inside the inclined channel, a plurality of hygroscopic silica gels are arranged inside the dehumidification channel, a valve plate 1 is hinged at the bottom of the inclined block plug, and a lever is arranged at one end of the valve plate 1;

[0005] At least one air outlet is provided at the top of one side of the cabinet, a fan is provided inside the air outlet, an electric push rod is provided at the bottom of the air outlet, a transmission rod is provided at the output end of the electric push rod, the bottom end of the transmission rod extends to one side of the inclined block plug and is transmission-connected to the lever, and a valve plate 2 transmission-connected to the top end of the transmission rod is provided at one side of the air outlet;

[0006] The inner bottom of the cabinet is provided with an air uniforming plate located at the bottom of the dehumidification channel, and the bottom of the dehumidification channel is provided with an air guide tube located directly below the valve plate, the bottom of the air guide tube extends to the bottom of the air uniforming plate, and the interior of the air guide tube is provided with at least one filter plate, and the interior of the filter plate is provided with a filter net.

[0007] As a preferred technical solution of the present invention, the interior of the dehumidification channel is provided with fixed rods whose number is the same as the hygroscopic silica gel and which are sleeved one-to-one, and heating tubes are provided inside the fixed rods and the interior of the dehumidification channel. A circle of the hygroscopic silica gel is provided with a plurality of protrusions and pores.

[0008] As a preferred technical solution of the present invention, the outside of the dehumidification channel is covered with a layer of insulation tube, one end of the inclined channel and the inside of the notch on one side of the cabinet are provided with a grid, the top and bottom of the valve plate one are provided with a sealing plate one, and one side of the valve plate two is provided with a sealing plate two.

[0009] As a preferred technical solution of the present invention, the top end of the transmission rod is wrapped around the top of the air outlet and is provided with a rack, the top of the air outlet is provided with a gear meshing with the rack, the top of the valve plate 2 is fixedly connected to the surface of the gear, and the bottom of the air outlet is provided with a temperature and humidity sensor located on one side of the electric push rod.

[0010] As a preferred technical solution of the present invention, a slide groove is arranged inside the shift rod, a slide rod movably connected to the slide groove is arranged on one side of the bottom end of the transmission rod, a sealing sleeve 1 is sleeved on the shift rod, and a sealing sleeve 2 is sleeved on the transmission rod.

[0011] As a preferred technical solution of the present invention, at least two connecting grooves are arranged inside the air guide tube, the number of the filter plates is two, the two filter plates are movably arranged inside the two connecting grooves respectively, and the two filter plates are arranged up and down.

[0012] As a preferred technical solution of the present invention, a replacement groove is provided at the bottom of one side of the cabinet, a guide block is provided on one side of the filter plate, and the other side extends to the interior of the replacement groove and is provided with a handle.

[0013] As a preferred technical solution of the present invention, the top of the inner wall of the connecting groove is connected to a circle of enclosure through a spring, the bottom of the enclosure is arc-shaped, and the top of the inner wall of the connecting groove is provided with a silicone sleeve that is sleeved with the bottom of the enclosure.

[0014] As a preferred technical solution of the present invention, a circle of arc groove is provided on the top of the filter plate, which is sleeved with the bottom of the enclosure plate, and a rubber ring is provided at the bottom of the inner wall of the connecting groove to fit with the bottom of the filter plate.

[0015] As a preferred technical solution of the present invention, a cabinet door located above the inclined channel is hinged on one side of the cabinet body, and a sealing strip is also provided on one side of the cabinet body, one side of which is in contact with one side of the cabinet door, and a spring is provided inside the sealing strip.

[0016] Compared with the prior art, the present invention provides a low-voltage switch distribution cabinet, which has the following beneficial effects:

[0017] The low-voltage switch distribution cabinet can effectively remove moisture from the air through the defogger plate and the desiccant silica gel, thereby preventing humid air from entering the interior of the cabinet; the humid air can be filtered through the filter net, thereby preventing dust from entering the interior of the cabinet; the desiccant silica gel can be dried through the heating tube and reused; and the setting of the valve plate can prevent hot air from entering the interior of the cabinet during the drying process of the desiccant silica gel; the dehumidification channel is wrapped by the insulation tube, thereby preventing the heat of the heating tube from being transferred to the interior of the cabinet through the dehumidification channel, thereby greatly reducing the occurrence of malfunctions of electrical components inside the cabinet due to high heat or humid air. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a low-voltage switch distribution cabinet proposed by the present invention;

[0019] Figure 2 This is a rear view of the structure of a low-voltage switch distribution cabinet proposed by the present invention;

[0020] Figure 3 This is a cross-sectional view of the dehumidification channel structure of a low-voltage switch distribution cabinet proposed by the present invention;

[0021] Figure 4 for Figure 3 A magnified view of the structure at center A;

[0022] Figure 5 for Figure 3 A magnified view of the structure at B in the middle;

[0023] Figure 6 for Figure 3 A magnified view of the structure at C in the middle;

[0024] Figure 7 for Figure 3 A magnified view of the structure at D in the middle;

[0025] Figure 8 for Figure 3 A magnified view of the structure at E in the middle;

[0026] Fig. 9 This is a cross-sectional view of the fan structure of a low-voltage switch distribution cabinet proposed by the present invention.

[0027] In the figure: 1, cabinet body; 11, cabinet door; 12, replacement slot; 13, sealing strip; 2, dehumidification channel; 21, heat insulation tube; 22, oblique channel; 23, defogger plate; 24, oblique block plug; 241, through hole; 25, valve plate 1; 26, sealing plate 1; 27, lever; 271, sealing sleeve 1; 272, slide groove; 28, fixing rod; 281, heating tube; 29, moisture-absorbing silica gel; 291, protrusion; 29 2. Air hole; 3. Filter plate; 31. Filter net; 32. Guide block; 33. Handle; 4. Grid; 5. Air outlet; 51. Fan; 52. Electric push rod; 53. Transmission rod; 531. Sealing sleeve 2; 54. Rack; 55. Gear; 56. Valve plate 2; 57. Sealing plate 2; 58. Temperature and humidity sensor; 6. Wind uniformity plate; 7. Air guide tube; 71. Connecting groove; 72. Enclosure; 73. Silicone sleeve. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-9 A low-voltage switch distribution cabinet comprises a cabinet body 1, a dehumidification channel 2 is arranged at the inner bottom of the cabinet body 1, one end of the dehumidification channel 2 extends to the outside of one side of the cabinet body 1, and an inclined block plug 24 is arranged inside the other end, and a through hole 241 is arranged inside the inclined block plug 24, and a notch connected to the through hole 241 is arranged at the bottom of one side of the cabinet body 1, an inclined channel 22 is arranged at one end of the dehumidification channel 2, a plurality of defog plates 23 are arranged inside the inclined channel 22, and a plurality of hygroscopic silica gel 29 are arranged inside the dehumidification channel 2, a valve plate 25 is hinged at the bottom of the inclined block plug 24, and a lever 27 is arranged at one end of the valve plate 25.

[0030] At least one air outlet 5 is arranged on the top of one side of the cabinet body 1, a fan 51 is arranged inside the air outlet 5, an electric push rod 52 is arranged at the bottom of the air outlet 5, a transmission rod 53 is arranged at the output end of the electric push rod 52, the bottom end of the transmission rod 53 extends to one side of the inclined block plug 24 and is transmission-connected to the lever 27, and a valve plate 2 56 transmission-connected to the top end of the transmission rod 53 is arranged on one side of the air outlet 5.

[0031] The inner bottom of the cabinet 1 is provided with an air uniforming plate 6 located at the bottom of the dehumidification channel 2, and the bottom of the dehumidification channel 2 is provided with an air guide tube 7 located directly below the valve plate 25, the bottom of the air guide tube 7 extends to the bottom of the air uniforming plate 6, and the interior of the air guide tube 7 is movably provided with at least one filter plate 3, and the interior of the filter plate 3 is provided with a filter mesh 31, the air uniforming plate 6 blocks the bottom of the dehumidification channel 2, and the interior of the air uniforming plate 6 is provided with a plurality of small holes for ventilation. When the air guide tube 7 transports the dehumidified and filtered air to the bottom of the air uniforming plate 6, the air uniforming plate 6 transports the air to the interior of the cabinet 1 more evenly and dispersedly through the small holes, so as to fully dissipate the heat of the electrical components inside the cabinet 1.

[0032] As a specific technical solution of this embodiment, the interior of the dehumidification channel 2 is provided with fixed rods 28, the number of which is the same as that of the hygroscopic silica gel 29 and which are sleeved one by one. The interior of the fixed rod 28 and the interior of the dehumidification channel 2 are both provided with heating tubes 281. A circle of the hygroscopic silica gel 29 is provided with a plurality of protrusions 291 and air holes 292. The fixed rod 28 is used to limit the hygroscopic silica gel 29. The main body of the hygroscopic silica gel 29 is cylindrical, and has a plurality of protrusions 291 and air holes 292 on it, which can increase the contact area with the air, thereby better absorbing moisture in the air and achieving the dehumidification effect. The heating tube 281 is not used when the interior of the cabinet 1 is dissipated, but is used when the hygroscopic silica gel 29 needs to be dried. The heating tube 281 is started, and the heating tube 281 inside the fixed rod 28 and the heating tube 281 inside the dehumidification channel 2 dry the hygroscopic silica gel 29, so that the hygroscopic silica gel 29 can be reused. The multiple hygroscopic silica gels 29 inside the dehumidification channel 2 are staggered with each other, and the layout is more reasonable.

[0033] As a specific technical solution of this embodiment, the outside of the dehumidification channel 2 is coated with a layer of insulation tube 21, one end of the inclined channel 22 and the inside of the notch on one side of the cabinet 1 are provided with a grid 4, the top and bottom of the valve plate 1 25 are provided with a sealing plate 1 26, and one side of the valve plate 2 56 is provided with a sealing plate 2 57, and the insulation tube 21 is one or a combination of two or more of polystyrene board, rock wool, glass wool, or other materials with the same insulation effect can also be used, through the insulation tube 2 1 wraps the dehumidification channel 2 to prevent the heat of the heating tube 281 from being transferred to the inside of the cabinet 1 through the dehumidification channel 2, making it safer to use. The sealing plate 1 26 and the sealing plate 2 57 are both made of rubber material. The sealing plate 1 26 seals the top of the air guide tube 7, and the sealing plate 2 57 seals one side of the air outlet 5. When the electrical components inside the cabinet 1 do not need to dissipate heat, the valve plate 1 25 and the valve plate 2 56 respectively seal the air guide tube 7 and the air outlet 5 to prevent the external humid environment from entering the interior of the cabinet 1.

[0034] As a specific technical solution of this embodiment, the setting of the grid 4 can block larger debris and garbage and prevent them from entering the interior of the dehumidification channel 2. When valve plate 1 25 and valve plate 2 56 block the air guide tube 7 and the air outlet 5, the two ends of the dehumidification channel 2 are respectively connected to the outside of the cabinet 1 on both sides through the inclined channel 22 and the through hole 241. At this time, the air inside the dehumidification channel 2 will not enter the interior of the air guide tube 7 and the cabinet 1. The dehumidification channel 2 naturally circulates air to dry the hygroscopic silica gel 29. When the drying needs to be accelerated, the heating tube 281 can be started.

[0035] As a specific technical solution of this embodiment, the top of the transmission rod 53 is wound around the top of the air outlet 5 and is provided with a rack 54. The top of the air outlet 5 is provided with a gear 55 meshing with the rack 54. The top of the valve plate 56 is fixedly connected to the surface of the gear 55. The bottom of the air outlet 5 is provided with a temperature and humidity sensor 58 located on one side of the electric push rod 52. The interior of the lever 27 is provided with a slide groove 272. The bottom end of the transmission rod 53 is provided with a slide rod movably connected to the interior of the slide groove 272. The lever 27 is provided with a sealing sleeve 1 271. The transmission rod 53 is provided with a sealing sleeve 2 531. The temperature and humidity sensor 58, the electric push rod 52, the heating tube 281 and the fan 51 are all controlled by a controller. The controller is installed inside the cabinet 1. When heat dissipation is required, the electric push rod 52 is started to push the transmission rod 53 down. The transmission rod 53 is lowered to drive the rack 54 to shift the gear 55, so that the gear The wheel 55 drives the valve plate 2 56 to break away from the obstruction of the air outlet 5. At the same time, as the transmission rod 53 descends, the sliding rod at the bottom of the transmission rod 53 drives the lever 27 to flip through the sliding groove 272. When the lever 27 flips, it drives the valve plate 1 25 to flip to fit the inclined surface on one side of the inclined block plug 24, thereby blocking the through hole 241, so that the air entering the dehumidification channel 2 enters the interior of the cabinet 1 through the air guide tube 7. When the valve plate 1 25 and the valve plate 2 56 are opened, whether to start the fan 51 to accelerate the heat dissipation is selected according to the ambient temperature value inside the cabinet 1, and the temperature value for starting the fan 51 is set. The temperature change is sensed by the temperature and humidity sensor 58. When the temperature is not high and the humidity is not large, the heat is dissipated by the natural flow of air through the dehumidification channel 2 and the air outlet 5. When the heat dissipation needs to be accelerated, the fan 51 is started to extract the air inside the cabinet 1, and the external air is accelerated to enter the interior of the cabinet 1 through the dehumidification channel 2 and the air guide tube 7 to dissipate the heat of the electrical components.

[0036] As a specific technical solution of the present embodiment, at least two connecting grooves 71 are provided inside the air guide tube 7, and the number of the filter plates 3 is two. The two filter plates 3 are movably arranged inside the two connecting grooves 71 respectively, and the two filter plates 3 are arranged up and down. A replacement groove 12 is provided at the bottom of one side of the cabinet 1, and a guide block 32 is provided on one side of the filter plate 3, and the other side extends to the inside of the replacement groove 12 and is provided with a handle 33. The top of the inner wall of the connecting groove 71 is connected to a circle of enclosure plate 72 through a spring, and the bottom of the enclosure plate 72 is arc-shaped. The top of the inner wall of the connecting groove 71 is provided with a silicone sleeve 73 that is sleeved with the bottom of the enclosure plate 72. The top of the filter plate 3 is provided with a circle of arc grooves that are sleeved with the bottom of the enclosure plate 72. The bottom of the inner wall of the connecting groove 71 is provided with a rubber ring that fits with the bottom of the filter plate 3. The air passes through the defogger plate 23 inside the inclined channel 22 first. The demisting operation reduces the moisture in the air. The inclined channel 22 is arranged obliquely to prevent the condensation on the defogger plate 23 from entering the interior of the dehumidification channel 2. The air pre-dehumidified by the defogger plate 23 enters the interior of the dehumidification channel 2. The hygroscopic silica gel 29 fully contacts the air and absorbs the moisture in the air. The dehumidified air passes through the air guide tube 7 and is filtered by the filter screen 31. Then, it is evenly dispersed to the interior of the cabinet 1 through the air uniforming plate 6. The filter plate 3 can be pulled out from the interior of the connecting groove 71 by pulling the filter plate 3 by the handle 33, so that the filter screen 31 is convenient for cleaning. The two filter screens 31 are arranged alternately. One side of the guide block 32 is arranged obliquely to cooperate with the arc at the bottom of the enclosure 72, so that when the filter plate 3 is inserted into the interior of the connecting groove 71, the guide block 32 can contact the bottom of the enclosure 72, so that the compression spring of the enclosure 72 rises, thereby making the enclosure 72 and the filter plate 3 snap-fit ​​and seal, making the installation more convenient.

[0037] As a specific technical solution of this embodiment, a cabinet door 11 located above the inclined channel 22 is hinged on one side of the cabinet body 1, and a sealing strip 13 is also provided on one side of the cabinet body 1, one side of which is in contact with one side of the cabinet door 11. A spring is provided inside the sealing strip 13, and the sealing strip 13 is in contact with a circle on one side of the cabinet door 11, thereby ensuring the sealing of the connection between the cabinet door 11 and the cabinet body 1.

[0038] In summary, the low-voltage switch distribution cabinet can effectively remove moisture from the air through the defog plate 23 and the hygroscopic silica gel 29, thereby preventing humid air from entering the interior of the cabinet 1. The humid air can be filtered through the filter 31 to prevent dust from entering the interior of the cabinet 1. The hygroscopic silica gel 29 can be dried by the heating tube 281 and reused. The setting of the valve plate 25 prevents hot air from entering the interior of the cabinet 1 during the drying process of the hygroscopic silica gel 29. The dehumidification channel 2 is wrapped by the insulation tube 21 to prevent the heat of the heating tube 281 from being transferred to the interior of the cabinet 1 through the dehumidification channel 2, thereby greatly reducing the occurrence of failures of electrical components inside the cabinet 1 due to high heat or humid air.

[0039] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0040] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage switch distribution cabinet, comprising a cabinet body (1), characterized in that: The cabinet (1) is provided with a dehumidification channel (2) at the inner bottom, one end of the dehumidification channel (2) extends to the outside of one side of the cabinet (1), and the other end is provided with an inclined block plug (24) inside, and the inclined block plug (24) is provided with a through hole (241) inside, and the bottom of one side of the cabinet (1) is provided with a notch connected to the through hole (241), one end of the dehumidification channel (2) is provided with an inclined channel (22), and the inclined channel (22) is provided with a plurality of demisting plates (23), and the dehumidification channel (2) is provided with a plurality of moisture-absorbing silica gel (29), and the bottom of the inclined block plug (24) is hinged with a valve plate (25), and one end of the valve plate (25) is provided with a lever (27); At least one air outlet (5) is provided at the top of one side of the cabinet (1), a fan (51) is provided inside the air outlet (5), an electric push rod (52) is provided at the bottom of the air outlet (5), a transmission rod (53) is provided at the output end of the electric push rod (52), the bottom end of the transmission rod (53) extends to one side of the inclined block plug (24) and is transmission-connected to the shifting rod (27), and a valve plate 2 (56) transmission-connected to the top end of the transmission rod (53) is provided at one side of the air outlet (5); The inner bottom of the cabinet (1) is provided with an air uniforming plate (6) located at the bottom of the dehumidification channel (2), the bottom of the dehumidification channel (2) is provided with an air guide tube (7) located directly below the valve plate (25), the bottom of the air guide tube (7) extends through the bottom of the air uniforming plate (6), and the interior of the air guide tube (7) is provided with at least one filter plate (3), and the interior of the filter plate (3) is provided with a filter screen (31).

2. A low-voltage switch distribution cabinet according to claim 1, characterized in that: The dehumidification channel (2) is provided with fixing rods (28) whose number is the same as the number of the hygroscopic silica gel (29) and which are sleeved one-to-one. The fixing rods (28) and the dehumidification channel (2) are both provided with heating tubes (281). A circle of the hygroscopic silica gel (29) is provided with a plurality of protrusions (291) and air holes (292).

3. A low voltage switch distribution cabinet according to claim 1, characterized in that: The outside of the dehumidification channel (2) is covered with a layer of heat insulation tube (21), one end of the inclined channel (22) and the inside of the notch on one side of the cabinet (1) are provided with a grid (4), the top and bottom of the valve plate one (25) are provided with a sealing plate one (26), and one side of the valve plate two (56) is provided with a sealing plate two (57).

4. A low voltage switch distribution cabinet according to claim 1, characterized in that: The top end of the transmission rod (53) is wound around the top of the air outlet (5) and is provided with a rack (54); the top of the air outlet (5) is provided with a gear (55) meshing with the rack (54); the top of the valve plate 2 (56) is fixedly connected to the surface of the gear (55); and the bottom of the air outlet (5) is provided with a temperature and humidity sensor (58) located on one side of the electric push rod (52).

5. A low voltage switch distribution cabinet according to claim 1, characterized in that: The lever (27) is provided with a slide groove (272) inside, and a slide rod movably sleeved with the slide groove (272) is provided on one side of the bottom end of the transmission rod (53). The lever (27) is sleeved with a sealing sleeve 1 (271), and the transmission rod (53) is sleeved with a sealing sleeve 2 (531).

6. A low voltage switch distribution cabinet according to claim 1, characterized in that: At least two connection grooves (71) are arranged inside the air guide cylinder (7), the number of the filter plates (3) is two, the two filter plates (3) are movably arranged inside the two connection grooves (71), and the two filter plates (3) are arranged up and down.

7. A low voltage switch distribution cabinet according to claim 1, characterized in that: A replacement groove (12) is provided at the bottom of one side of the cabinet (1), a guide block (32) is provided on one side of the filter plate (3), and a handle (33) is provided on the other side extending into the interior of the replacement groove (12).

8. A low voltage switch distribution cabinet according to claim 6, characterized in that: The top of the inner wall of the connecting groove (71) is connected to a circle of enclosure (72) via a spring, the bottom of the enclosure (72) is arc-shaped, and the top of the inner wall of the connecting groove (71) is provided with a silicone sleeve (73) which is sleeved with the bottom of the enclosure (72).

9. A low-voltage switch distribution cabinet according to claim 8, characterized in that: The top of the filter plate (3) is provided with a circle of arc grooves which are sleeved with the bottom of the enclosure plate (72); the bottom of the inner wall of the connection groove (71) is provided with a rubber ring which fits with the bottom of the filter plate (3).

10. A low voltage switch distribution cabinet according to claim 1, characterized in that: A cabinet door (11) located above the inclined channel (22) is hingedly connected to one side of the cabinet body (1), and a sealing strip (13) is also provided on one side of the cabinet body (1), one side of which is in contact with one side of the cabinet door (11), and a spring is provided inside the sealing strip (13).

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