Electrical equipment moisture-proof device

Abstract

A moisture-proof device for electrical equipment comprises an electrical cabinet, a heat dissipation opening, a rain shielding mechanism, a shielding assembly, a filtering assembly and a dehumidification assembly. A cabinet door is hinged to the front face of the electrical cabinet, a plurality of heat dissipation openings arranged at equal intervals are formed in the left side and the right side of the electrical cabinet, a rain shielding mechanism is installed on the top of the electrical cabinet, shielding assemblies are arranged at the left end and the right end of the rain shielding mechanism, and installation shells are installed on the left side and the right side of the electrical cabinet and located on the front sides and the rear sides of the heat dissipation openings respectively. The shielding assembly reciprocates along the mounting shell; filtering assemblies are arranged at the positions, corresponding to the heat dissipation openings, of the left side and the right side of the inner wall of the electrical cabinet, fixing clamping plates are installed at the positions, located at the tops and the bottoms of the filtering assemblies, of the side face of the inner wall of the electrical cabinet, the fixing clamping plates are clamped and fixed to the filtering assemblies, and a dehumidification assembly is arranged at the position, located above the filtering assemblies, of the inner wall of the electrical cabinet; a humidity sensor is arranged on the inner wall of the electrical cabinet and located between the filtering assembly and the dehumidifying assembly. Rainwater does not easily enter electrical equipment, and the moisture-proof effect is good.

Description

Technical Field

[0001] The invention relates to an improvement of moisture-proof technology for electrical equipment, belongs to the field of electrical equipment, and in particular to a moisture-proof device for electrical equipment. Background Art

[0002] Electricity is an important energy source in production and life, and plays an important role in our life and production that cannot be ignored. Electrical equipment is the key to ensuring the normal operation and transmission of electricity. Electrical equipment includes generators, transformers, power lines, circuit breakers and other equipment in the power system. Most of these devices are placed outdoors for use. Although certain protective measures have been set up, once it encounters rainy weather, rainwater can easily flow into the equipment from the heat dissipation vents, which will not only make the electrical equipment damp and accelerate the aging of internal electrical components, but may also cause equipment failure or cause a short circuit, resulting in serious accidents.

[0003] The Chinese patent application with application number CN201710621365.X and application date July 27, 2017 discloses a moisture-proof control cabinet and a moisture-proof control cabinet. The moisture-proof control cabinet includes a cabinet body, a first moisture-proof component and a second moisture-proof component. The cabinet body includes a cabinet door and a fixing member. The fixing member includes an operation panel capable of setting a button component. The first moisture-proof component includes a first humidity sensor and a lifting and closing member. The first humidity sensor is arranged on the outside of the cabinet body. The lifting and closing member can be lifted and lowered on the inside of the cabinet door. The second moisture-proof component includes a second humidity sensor and a heating member. The heating member is arranged on the cabinet body. The moisture-proof control cabinet includes a button component, an electrical component component and a moisture-proof control cabinet. The moisture-proof control cabinet has a reasonable design, a simple structure, is easy to maintain and repair, and saves costs. However, the above scheme does not solve the problem that rainwater easily enters the electrical equipment.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of this patent application, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the invention

[0005] The purpose of the present invention is to overcome the problem in the prior art that rainwater easily enters electrical equipment, and to provide an electrical equipment moisture-proof device that prevents rainwater from easily entering the electrical equipment.

[0006] To achieve the above objectives, the technical solution of the present invention is: an electrical equipment moisture-proof device, the electrical equipment moisture-proof device comprising an electrical cabinet, a heat dissipation port, a rain shielding mechanism, a shielding component, a filtering component and a dehumidifying component; The front of the electrical cabinet is hinged with a cabinet door, and a plurality of heat dissipation openings arranged at equal distances are provided on the left and right sides of the electrical cabinet. A rain shielding mechanism is installed on the top of the electrical cabinet, and shielding components are provided at the left and right ends of the rain shielding mechanism. Mounting shells are respectively installed on the left and right sides of the electrical cabinet at the front and rear sides of the heat dissipation opening, and the shielding component reciprocates along the mounting shells. Filter components are provided on the left and right sides of the inner wall of the electrical cabinet corresponding to the heat dissipation ports, fixed clamps are installed on the sides of the inner wall of the electrical cabinet at the top and bottom of the filter components, the fixed clamps are clamped and fixed to the filter components, a dehumidification component is provided on the inner wall of the electrical cabinet above the filter component, and a humidity sensor is provided on the inner wall of the electrical cabinet between the filter component and the dehumidification component.

[0007] The rain shielding mechanism comprises a fixing box, a motor box, a stepping motor, two pulleys, two lead screws and two sliding rods; The top right side of the fixed box is connected to the bottom of the motor box, and two pulleys are respectively arranged on the left and right sides of the fixed box. A stepper motor is arranged in the motor box, and the output end of the stepper motor passes through the fixed box and is connected to the pulley on the right, and the pulley on the left is connected to the pulley on the right through a belt transmission. The top of the lead screw passes through the fixed box and is connected to the pulley, and the bottom of the lead screw passes through the front mounting shell and is connected to the bottom of the inner wall of the mounting shell, a sliding rod is arranged between the top and the bottom of the inner wall of the rear mounting shell, and the left and right ends of the shielding component are respectively connected to the lead screw and the sliding rod.

[0008] A connecting block is arranged between the fixing box and the installation shell on the front side, and the top of the lead screw passes through the connecting block.

[0009] Bearings are installed at the top of the inner wall of the fixed box corresponding to the two pulleys, and the two bearings are respectively connected to the corresponding pulleys.

[0010] The shielding assembly includes a protective plate, two moving blocks and an extension plate. Two moving blocks are installed on one side of the protective plate close to the mounting shell. A threaded hole is opened on the top of the front moving block, and a sliding hole is opened on the top of the rear moving block. The threaded hole is threadably matched with the lead screw, and the sliding rod is slidably matched with the sliding hole.

[0011] An extension plate is installed on the upper end of one side of the protection plate close to the mounting shell, and the extension plate is located between the two moving blocks.

[0012] The filter assembly comprises a filter screen frame, a filter screen, two connecting plates and two clamping blocks. The inner wall of the filter screen frame is provided with a filter screen, the top and bottom of the side of the filter screen frame are both provided with connecting plates, and the opposite sides of the two connecting plates are both provided with clamping blocks, and the front side of the clamping blocks is provided with a semicircular groove provided therethrough. The inner wall side surfaces of the electrical cabinet are provided with fixing clamping plates at both upper and lower sides of the filter frame.

[0013] A through connection groove is provided at the middle end of one side of the fixed clamp plate close to the filter screen frame, and semicircular balls are provided on both the front and rear sides of the inner wall of the connection groove; The clamping block is clamped in the connecting groove, and the semicircular ball is embedded in the semicircular groove.

[0014] The dehumidification assembly includes a mounting box, a pull plate and a water absorbing core; The top of the water absorbent core is connected to the bottom of the pull plate, the water absorbent core is embedded in the installation box, the bottom of the pull plate is located at the front and back sides of the water absorbent core and iron blocks are installed, a card slot is opened at the bottom of the iron block, and magnet blocks are installed on the front and back sides of the installation box, and the magnet blocks are plugged into the card slots.

[0015] The side of the installation box is provided with a plurality of communication openings distributed at equal distances.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In a moisture-proof device for electrical equipment of the present invention, a plurality of heat dissipation openings arranged at equal distances are provided on both sides of the electrical cabinet, a rain shielding mechanism is installed on the top of the electrical cabinet, shielding components are provided at the left and right ends of the rain shielding mechanism, and mounting shells are respectively installed on the left and right sides of the electrical cabinet at the front and rear sides of the heat dissipation opening; filter components are provided at the corresponding heat dissipation openings on the left and right sides of the inner wall of the electrical cabinet, and fixed card plates are installed on the top and bottom of the filter components on the inner wall side of the electrical cabinet, and the fixed card plates are fixedly connected with the filter components; when used, when the humidity sensor detects that the humidity in the outside air is higher than the normal value, the control terminal will send a signal command to the rain shielding mechanism, and after receiving the command, the rain shielding mechanism will operate the shielding component to move downward along the side of the electrical cabinet, thereby covering the heat dissipation opening, so that the heat dissipation opening area can prevent rainwater from entering; in addition, the dehumidification component can absorb the moisture in the air in the electrical cabinet, which can further prevent the electrical components in the electrical cabinet from being damaged, thereby improving the moisture-proof performance of the equipment. Therefore, rainwater is not easy to enter the electrical equipment of the present invention, and the moisture-proof effect is good.

[0017] 2. In a moisture-proof device for electrical equipment of the present invention, the top right side of the fixed box is connected to the bottom of the motor box, two pulleys are respectively arranged on the left and right sides of the fixed box, a stepper motor is arranged in the motor box, the output end of the stepper motor passes through the fixed box and is connected to the pulley on the right side, the left and right ends of the shielding component are respectively connected to the lead screw and the slide bar, when used, by installing the lead screw and the slide bar in the mounting shells on the front and rear sides respectively, and then starting the stepper motor, the shielding component is driven to adjust up and down on the lead screw and the slide bar, so as to shield the heat dissipation outlet, and the lead screw and the slide bar ensure that the stability of the shielding component adjustment is stronger. Therefore, the present invention is easy to adjust and stable to operate.

[0018] 3. In a moisture-proof device for electrical equipment of the present invention, two moving blocks are installed on one side of the protective plate close to the mounting shell, a threaded hole is provided on the top of the front moving block, and a sliding hole is provided on the top of the rear moving block; the threaded hole is matched with the screw thread, and the sliding rod is slidably matched with the sliding hole, and an extension plate is installed on the upper end of one side of the protective plate close to the mounting shell, and the extension plate is located between the two moving blocks. When used, the extension plate serves to shield the top of the protective plate, and the protective plate protects part of the heat dissipation port, so that the shielding component can protect the heat dissipation port part of the electrical cabinet in all directions, and then under the action of the connecting block, the moving position of the protective plate is limited, making the movement of the shielding component safer. Therefore, the present invention is easy to move and has a wider protection range.

[0019] 4. In a moisture-proof device for electrical equipment of the present invention, the filter assembly includes a filter frame, a filter, two connecting plates and two clamping blocks, the inner wall of the filter frame is provided with a filter, the top and bottom of the side of the filter frame are both provided with connecting plates, the opposite sides of the two connecting plates are both provided with clamping blocks, and the front side of the clamping block is provided with a semicircular groove provided through, when used, the filter is provided in the filter frame to filter dust and impurities in the outside air, and then the two clamping blocks are inserted into the connecting groove to position the outer wall of the filter frame, the outer walls of the two semicircular balls are engaged with the inner walls of the semicircular groove, and the connecting groove is buckled into the semicircular groove through the semicircular balls, so that the filter frame is fixed, and the filter assembly is convenient to be quickly disassembled and replaced. Therefore, the present invention can filter the air and is easy to disassemble and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is an internal view in the present invention.

[0022] Figure 3 It is a structural schematic diagram of the rain shielding mechanism in the present invention.

[0023] Figure 4 It is a structural schematic diagram of the shielding component in the present invention.

[0024] Figure 5 It is a structural schematic diagram of the filter assembly in the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the dehumidification component in the present invention.

[0026] In the figure: electrical cabinet 1, cabinet door 2, heat dissipation port 3, mounting shell 4, rain shield mechanism 5, fixing box 51, motor box 52, connecting block 53, stepping motor 54, pulley 55, belt 56, lead screw 57, slide rod 58, bearing 59, shielding component 6, protective plate 61, moving block 62, sliding hole 63, threaded hole 64, extension plate 65, humidity sensor 7, filter component 8, filter screen frame 81, filter screen 82, connecting plate 83, card block 84, semicircular groove 840, dehumidification component 9, mounting box 91, connecting port 910, pull plate 92, water absorption core 93, magnet block 94, iron block 95, card slot 950, fixing card plate 10, connecting slot 1001, semicircular ball 1002. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] See also Figures 1 to 6 , a moisture-proof device for electrical equipment, the moisture-proof device for electrical equipment comprising an electrical cabinet 1, a heat dissipation port 3, a rain shielding mechanism 5, a shielding component 6, a filtering component 8 and a dehumidifying component 9; The front of the electrical cabinet 1 is hinged with a cabinet door 2, and a plurality of heat dissipation openings 3 arranged at equal distances are provided on the left and right sides of the electrical cabinet 1. A rain shielding mechanism 5 is installed on the top of the electrical cabinet 1, and shielding components 6 are provided at the left and right ends of the rain shielding mechanism 5. The left and right sides of the electrical cabinet 1 are respectively installed with mounting shells 4 located at the front and rear sides of the heat dissipation openings 3, and the shielding components 6 reciprocate along the mounting shells 4. Filter components 8 are provided on the left and right sides of the inner wall of the electrical cabinet 1 corresponding to the heat dissipation ports 3, and fixed clamps 10 are installed on the side surfaces of the inner wall of the electrical cabinet 1 at the top and bottom of the filter component 8, and the fixed clamps 10 are clamped and fixed to the filter component 8, and a dehumidification component 9 is provided on the inner wall of the electrical cabinet 1 above the filter component 8, and a humidity sensor 7 is provided on the inner wall of the electrical cabinet 1 between the filter component 8 and the dehumidification component 9.

[0029] The rain shield mechanism 5 includes a fixing box 51, a motor box 52, a stepping motor 54, two pulleys 55, two lead screws 57 and two slide bars 58; The top right side of the fixed box 51 is connected to the bottom of the motor box 52, and two pulleys 55 are respectively arranged on the left and right sides of the fixed box 51. A stepper motor 54 is arranged in the motor box 52, and the output end of the stepper motor 54 passes through the fixed box 51 and is connected to the pulley 55 on the right side, and the pulley 55 on the left side is connected to the pulley 55 on the right side through a belt 56. The top of the lead screw 57 passes through the fixed box 51 and is connected to the pulley 55, and the bottom of the lead screw 57 passes through the front mounting shell 4 and is connected to the bottom of the inner wall of the mounting shell 4. A sliding rod 58 is arranged between the top and the bottom of the inner wall of the rear mounting shell 4, and the left and right ends of the shielding component 6 are respectively connected to the lead screw 57 and the sliding rod 58.

[0030] A connecting block 53 is disposed between the fixing box 51 and the front mounting shell 4 , and the top of the lead screw 57 passes through the connecting block 53 .

[0031] Bearings 59 are installed at the top of the inner wall of the fixing box 51 corresponding to the two pulleys 55 , and the two bearings 59 are connected to the corresponding pulleys 55 , respectively.

[0032] The shielding assembly 6 includes a protective plate 61, two moving blocks 62 and an extension plate 65. Two moving blocks 62 are installed on one side of the protective plate 61 close to the mounting shell 4. A threaded hole 64 is opened on the top of the front moving block 62, and a sliding hole 63 is opened on the top of the rear moving block 62. The threaded hole 64 is threadably matched with the lead screw 57 , and the sliding rod 58 is slidingly matched with the sliding hole 63 .

[0033] An extension plate 65 is installed on the upper end of one side of the protection plate 61 close to the mounting shell 4 , and the extension plate 65 is located between the two moving blocks 62 .

[0034] The filter assembly 8 comprises a filter frame 81, a filter 82, two connecting plates 83 and two clamping blocks 84. The filter frame 81 has a filter 82 disposed on its inner wall. The top and bottom of the side of the filter frame 81 are both provided with connecting plates 83. The two connecting plates 83 are both provided with clamping blocks 84 on the opposite sides thereof. The front side of the clamping blocks 84 is provided with a semicircular groove 840 extending therethrough. The inner wall side surfaces of the electrical cabinet 1 are provided with fixing clamps 10 on both upper and lower sides of the filter frame 81 .

[0035] A through connection groove 1001 is provided at the middle end of one side of the fixing clamp plate 10 close to the filter screen frame 81, and semicircular balls 1002 are provided on both the front and rear sides of the inner wall of the connection groove 1001; The block 84 is engaged in the connection groove 1001 , and the semicircular ball 1002 is embedded in the semicircular groove 840 .

[0036] The dehumidification assembly 9 includes a mounting box 91, a pull plate 92 and a water absorbing core 93; The top of the water absorbent core 93 is connected to the bottom of the pull plate 92, the water absorbent core 93 is embedded in the installation box 91, the bottom of the pull plate 92 is located at the front and rear sides of the water absorbent core 93, and iron blocks 95 are installed, and a card slot 950 is opened at the bottom of the iron block 95, and magnet blocks 94 are installed on the front and rear sides of the installation box 91, and the magnet blocks 94 are plugged into the card slot 950.

[0037] The side surface of the installation box 91 is provided with a plurality of communication openings 910 which are distributed at equal distances.

[0038] The principle of the present invention is described as follows: During daily use, the electrical equipment filters dust and impurities in the air outside the equipment through the filter screen 82 arranged on the heat dissipation ports 3 on both sides inside the electrical cabinet 1. At the same time, the water absorbent core 93 installed in the installation box 91 filters and absorbs the moisture in the air in the electrical cabinet 1 through the connecting port 910 to keep the air in the electrical cabinet 1 dry. When it rains, when the humidity sensor 7 arranged on the side close to the heat dissipation port 3 detects that the humidity content in the air flowing in is greater than the normal value, the humidity sensor 7 sends a signal command to the stepper motor 54 and starts the stepper motor 54. The output shaft of the stepper motor 54 drives the pulley 55 on one side to rotate, and the pulleys 55 on both sides are rotated synchronously through the belt 56, so as to drive the lead screws 57 on both sides to rotate. Rotate, during the rotation of the lead screw 57, the moving block 62 on one side of the protective plate 61 is driven to move downward along the slide rod 58 through the slide hole 63, so that the protective plates 61 on both sides are displaced downward along the mounting shell 4, so as to shield the multiple heat dissipation ports 3 on both sides, prevent rainwater from entering the electrical cabinet 1, and improve the moisture resistance of the equipment. After a period of use, the semicircular grooves 840 on both sides of the block 84 are disengaged from the semicircular ball 1002 by bending the block 84, so that the block 84 is taken out along the connecting groove 1001, and the filter net 82 is taken out from the electrical cabinet 1 for cleaning, and then the pull plate 92 is pulled upward, and the iron block 95 is disengaged from the magnet block 94 through the slot 950, so that the absorbent core 93 can be taken out of the mounting box 91 for replacement.

[0039] Embodiment 1: A moisture-proof device for electrical equipment, the moisture-proof device for electrical equipment comprising an electrical cabinet 1, a heat dissipation port 3, a rain shielding mechanism 5, a shielding assembly 6, a filter assembly 8 and a dehumidification assembly 9; a cabinet door 2 is hingedly connected to the front of the electrical cabinet 1, a plurality of heat dissipation ports 3 arranged at equal distances are provided on the left and right sides of the electrical cabinet 1, a rain shielding mechanism 5 is installed on the top of the electrical cabinet 1, shielding assemblies 6 are arranged at the left and right ends of the rain shielding mechanism 5, mounting shells 4 are respectively installed on the left and right sides of the heat dissipation port 3 on the front and rear sides of the left and right sides of the electrical cabinet 1, and the shielding assembly 6 reciprocates along the mounting shell 4; filter assemblies 8 are arranged on the left and right sides of the inner wall of the electrical cabinet 1 corresponding to the heat dissipation port 3, a fixed card plate 10 is installed on the side of the inner wall of the electrical cabinet 1 at the top and bottom of the filter assembly 8, the fixed card plate 10 is clamped and fixed with the filter assembly 8, a dehumidification assembly 9 is arranged on the inner wall of the electrical cabinet 1 above the filter assembly 8, and a humidity sensor 7 is arranged on the inner wall of the electrical cabinet 1 between the filter assembly 8 and the dehumidification assembly 9.

[0040] When in use: through the coordinated use of the humidity sensor 7 and the rain shield mechanism 5, when the humidity in the outside air detected by the humidity sensor 7 is higher than the normal value, the humidity sensor 7 sends a signal command to the rain shield mechanism 5, so that the rain shield mechanism 5 is operated to move the shielding component 6 downward to cover the heat dissipation port 3 to play a role in rain protection, and through the setting of the filter component 8 and the dehumidification component 9, it is convenient to filter the dust and impurities in the outside air, and the moisture in the air in the electrical cabinet 1 is adsorbed by the dehumidification component 9 to prevent the electrical components in the electrical cabinet 1 from being damaged.

[0041] Embodiment 2: Embodiment 2 is substantially the same as Embodiment 1, except that: The rain shield mechanism 5 includes a fixed box 51, a motor box 52, a stepper motor 54, two pulleys 55, two lead screws 57 and two slide bars 58; the top right side of the fixed box 51 is connected to the bottom of the motor box 52, the two pulleys 55 are respectively arranged on the left and right sides of the fixed box 51, the motor box 52 is provided with a stepper motor 54, the output end of the stepper motor 54 passes through the fixed box 51 and is connected to the right pulley 55, the left pulley 55 and the right pulley 55 are connected by a belt 56, the top of the lead screw 57 passes through the fixed box 51, and the output end of the stepper motor 54 passes through the fixed box 51 and is connected to the right pulley 55. The box 51 is connected to the pulley 55 at the rear, the bottom of the screw 57 passes through the front mounting shell 4 and is connected to the bottom of the inner wall of the mounting shell 4, a slide bar 58 is arranged between the top and the bottom of the inner wall of the rear mounting shell 4, and the left and right ends of the shielding component 6 are respectively connected to the screw 57 and the slide bar 58; a connecting block 53 is arranged between the fixed box 51 and the front mounting shell 4, and the top of the screw 57 passes through the connecting block 53; bearings 59 are installed at the top of the inner wall of the fixed box 51 corresponding to the two pulleys 55, and the two bearings 59 are respectively connected to the corresponding pulleys 55.

[0042] When in use: the inner walls of the two pulleys 55 are sleeved with the inner surface of the belt 56, and by respectively sleeved on the pulleys 55 on both sides, the pulley 55 on one side rotates while driving the pulley 55 on the other side to rotate synchronously. The connecting block 53 and the outside of the pulley 55 are arranged on the same vertical line, and the outer wall of the screw 57 passes through the upper and lower ends of the inside of the connecting block 53. The bottom of the outer walls of the two screws 57 respectively pass through the bottom of the inner walls of the two front mounting shells 4 and are rotatably connected thereto. The upper and lower ends of the two slide rods 58 are respectively fixedly connected to the inner walls of the two rear mounting shells 4. By respectively installing the screw 57 and the slide rod 58 in the mounting shells 4 on the front and rear sides, the shielding component 6 is connected and driven.

[0043] Embodiment 3: Embodiment 3 is substantially the same as Embodiment 1, except that: The shielding assembly 6 includes a protective plate 61, two moving blocks 62 and an extension plate 65. The two moving blocks 62 are installed on the side of the protective plate 61 close to the mounting shell 4. A threaded hole 64 is opened on the top of the front moving block 62, and a sliding hole 63 is opened on the top of the rear moving block 62; the threaded hole 64 is threadedly matched with the lead screw 57, and the sliding rod 58 is slidingly matched with the sliding hole 63; an extension plate 65 is installed on the upper end of the side of the protective plate 61 close to the mounting shell 4, and the extension plate 65 is located between the two moving blocks 62.

[0044] When in use: the extension plate 65 serves to cover the top of the protective plate 61, the front moving block 62 is threadedly connected to the outer wall of the lead screw 57 through the threaded hole 64, and the front moving block 62 is connected to the lead screw 57 through the threaded hole 64, thereby driving the protective plate 61 to be raised and lowered, and the rear moving block 62 is slidingly connected to the outer wall of the slide rod 58 through the slide hole 63, and the rear moving block 62 slides along the outer wall of the slide rod 58 through the slide hole 63, thereby limiting the moving trajectory of the protective plate 61.

[0045] Embodiment 4: Embodiment 4 is substantially the same as Embodiment 1, except that: The filter assembly 8 includes a filter frame 81, a filter 82, two connecting plates 83 and two clamping blocks 84. The inner wall of the filter frame 81 is provided with a filter 82, and connecting plates 83 are installed on the top and bottom of the side of the filter frame 81. Blocks 84 are installed on the opposite sides of the two connecting plates 83, and a semicircular groove 840 is provided on the front side of the block 84. Fixed clamping plates 10 are installed on the upper and lower sides of the inner wall side of the electrical cabinet 1. A through connecting groove 1001 is provided at the middle end of the fixed clamping plate 10 close to the filter frame 81, and semicircular balls 1002 are provided on the front and rear sides of the inner wall of the connecting groove 1001. The clamping block 84 is clamped in the connecting groove 1001, and the semicircular ball 1002 is embedded in the semicircular groove 840.

[0046] When in use: a filter 82 is arranged in the filter frame 81 to filter dust and impurities in the outside air; the outer wall of the filter frame 81 is positioned by inserting two blocks 84 along the connecting groove 1001; the outer walls of the two semicircular balls 1002 are engaged with the inner walls of the semicircular groove 840; the connecting groove 1001 is buckled into the semicircular groove 840 through the semicircular balls 1002, thereby fixing the filter frame 81 and facilitating the rapid disassembly and replacement of the filter assembly 8.

[0047] Embodiment 5: Embodiment 5 is substantially the same as Embodiment 1, except that: The dehumidification component 9 includes an installation box 91, a pull plate 92 and a water absorbent core 93; the top of the water absorbent core 93 is connected to the bottom of the pull plate 92, the water absorbent core 93 is embedded in the installation box 91, and the bottom of the pull plate 92 is located at the front and rear sides of the water absorbent core 93. Iron blocks 95 are installed, and a card slot 950 is provided at the bottom of the iron block 95. Magnet blocks 94 are installed on the front and rear sides of the installation box 91, and the magnet blocks 94 are plugged into the card slot 950; a plurality of equidistantly distributed connecting ports 910 are provided on the side of the installation box 91.

[0048] During use: the pull plate 92 drives the water absorbent core 93 to be inserted into the installation box 91, and the moisture in the air is filtered and adsorbed through the connecting port 910. The outer wall of the water absorbent core 93 is sleeved with the inner part of the installation box 91, and the two iron blocks 95 are sleeved with the outer wall of the magnet block 94 through the slot 950. The outer surface of the magnet block 94 is magnetically connected to the surface of the iron block 95. During installation, the iron blocks 95 on both sides are sleeved into the outside of the magnet block 94 through the slot 950, and the two are fixed by magnetic attraction, which is convenient for installing the water absorbent core 93.

[0049] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. A moisture-proof device for electrical equipment, characterized in that: The electrical equipment moisture-proof device comprises an electrical cabinet (1), a heat dissipation port (3), a rain shielding mechanism (5), a shielding component (6), a filtering component (8) and a dehumidification component (9); The front of the electrical cabinet (1) is hinged with a cabinet door (2); a plurality of heat dissipation openings (3) arranged at equal distances are provided on both left and right sides of the electrical cabinet (1); a rain shielding mechanism (5) is installed on the top of the electrical cabinet (1); shielding components (6) are provided at both left and right ends of the rain shielding mechanism (5); and mounting shells (4) are installed on the left and right sides of the electrical cabinet (1) at the front and rear sides of the heat dissipation opening (3), respectively; and the shielding component (6) reciprocates along the mounting shell (4); Filter components (8) are provided on both sides of the inner wall of the electrical cabinet (1) at locations corresponding to the heat dissipation openings (3); fixed card plates (10) are installed on the side surfaces of the inner wall of the electrical cabinet (1) at the top and bottom of the filter components (8); the fixed card plates (10) are fixedly connected to the filter components (8); a dehumidification component (9) is provided on the inner wall of the electrical cabinet (1) above the filter components (8); and a humidity sensor (7) is provided on the inner wall of the electrical cabinet (1) between the filter components (8) and the dehumidification component (9).

2. The moisture-proof device for electrical equipment according to claim 1, characterized in that: The rain shielding mechanism 5 comprises a fixing box (51), a motor box (52), a stepping motor (54), two pulleys (55), two lead screws (57) and two sliding rods (58); The right side of the top of the fixed box (51) is connected to the bottom of the motor box (52), two pulleys (55) are respectively arranged on the left and right sides of the fixed box (51), a stepper motor (54) is arranged in the motor box (52), the output end of the stepper motor (54) passes through the fixed box (51) and is connected to the pulley (55) on the right side, the pulley (55) on the left side and the pulley (55) on the right side are connected by a belt (56), the top of the lead screw (57) passes through the fixed box (51) and is connected to the pulley (55), the bottom of the lead screw (57) passes through the front side mounting shell (4) and is connected to the bottom of the inner wall of the mounting shell (4), a slide bar (58) is arranged between the top and bottom of the inner wall of the rear side mounting shell (4), and the left and right ends of the shielding component (6) are respectively connected to the lead screw (57) and the slide bar (58).

3. The moisture-proof device for electrical equipment according to claim 2, characterized in that: A connecting block (53) is provided between the fixing box (51) and the front mounting shell (4), and the top of the lead screw (57) passes through the connecting block (53).

4. The moisture-proof device for electrical equipment according to claim 3, characterized in that: Bearings (59) are installed at the top of the inner wall of the fixed box (51) corresponding to the two pulleys (55), and the two bearings (59) are respectively connected to the corresponding pulleys (55).

5. The moisture-proof device for electrical equipment according to claim 2, characterized in that: The shielding assembly (6) comprises a protective plate (61), two moving blocks (62) and an extension plate (65); the two moving blocks (62) are mounted on a side of the protective plate (61) close to the mounting shell (4); a threaded hole (64) is provided on the top of the front moving block (62); and a sliding hole (63) is provided on the top of the rear moving block (62); The threaded hole (64) is threadably engaged with the lead screw (57), and the sliding rod (58) is slidingly engaged with the sliding hole (63).

6. The moisture-proof device for electrical equipment according to claim 5, characterized in that: An extension plate (65) is installed on the upper end of one side of the protection plate (61) close to the mounting shell (4), and the extension plate (65) is located between the two moving blocks (62).

7. The moisture-proof device for electrical equipment according to claim 5, characterized in that: The filter assembly (8) comprises a filter screen frame (81), a filter screen (82), two connecting plates (83) and two clamping blocks (84); the filter screen (82) is arranged on the inner wall of the filter screen frame (81); the connecting plates (83) are installed on the top and bottom of the side of the filter screen frame (81); the clamping blocks (84) are installed on the opposite sides of the two connecting plates (83); and the front side of the clamping blocks (84) is provided with a semicircular groove (840) extending therethrough. Fixed clamping plates (10) are installed on the inner wall side surfaces of the electrical cabinet (1) at both the upper and lower sides of the filter screen frame (81).

8. The moisture-proof device for electrical equipment according to claim 7, characterized in that: A through connection groove (1001) is provided at the middle end of one side of the fixed clamping plate (10) close to the filter screen frame (81), and semicircular balls (1002) are provided on both the front and rear sides of the inner wall of the connection groove (1001); The clamping block (84) is clamped in the connecting groove (1001), and the semicircular ball (1002) is embedded in the semicircular groove (840).

9. The moisture-proof device for electrical equipment according to claim 1, characterized in that: The dehumidification component (9) comprises a mounting box (91), a pull plate (92) and a water absorbing core (93); The top of the water absorbent core (93) is connected to the bottom of the pull plate (92), the water absorbent core (93) is embedded in the installation box (91), the bottom of the pull plate (92) is located at the front and rear sides of the water absorbent core (93) and iron blocks (95) are installed, the bottom of the iron block (95) is provided with a slot (950), and the front and rear sides of the installation box (91) are provided with magnet blocks (94), which are plugged into the slot (950).

10. The moisture-proof device for electrical equipment according to claim 9, characterized in that: The side surface of the installation box (91) is provided with a plurality of communication openings (910) distributed at equal distances.

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