High-low voltage switch cabinet with waterproof and dustproof functions

Abstract

The invention discloses a high-low voltage switch cabinet with waterproof and dustproof functions, which comprises a mounting seat, a cabinet body is fixedly mounted on the mounting seat, exhaust mesh enclosures are fixedly mounted on two sides of the cabinet body, an equipment cabinet is mounted at the top of the cabinet body, a dehumidifier is fixedly mounted in the equipment cabinet, and the dehumidifier is fixedly mounted in the cabinet body. A booster fan is installed at the bottom of the dehumidifier and downwards communicates with the interior of the cabinet body. In the equipment operation process, the dust removal mechanism continuously operates, dust swept off by the pneumatic mechanism is continuously output backwards and is matched with a scraping plate to be removed and discharged, dust is prevented from being accumulated at the top of the equipment cabinet, and therefore the device has the dust prevention function, meanwhile, dust removal is continuous, the structure is more compact, peripheral protrusions of the switch cabinet are not increased, and the service life of the switch cabinet is prolonged. And by adopting the design of internal continuous positive pressure and outward exhaust, damp air is effectively prevented from entering, accumulation of dust in the exhaust structure is reduced, and the operation efficiency of equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of switch cabinets, and more specifically, to a high and low voltage switch cabinet with waterproof and dustproof functions. Background Art

[0002] High and low voltage switch cabinets are electrical equipment. The external line first enters the main control switch in the cabinet, and then enters the sub-control switch, and each branch is set as required. Such as instruments, automatic controls, motor magnetic switches, various AC contactors, etc. Some also have high-voltage and low-voltage switch cabinets, with high-voltage busbars, such as power plants, etc. Some also have low-frequency load shedding to protect the main equipment. Currently, high and low voltage switch cabinets are devices for connecting high-voltage or low-voltage cables. Generally, power supply bureaus and substations use high-voltage cabinets, then step down the voltage through transformers to low-voltage cabinets, and the low-voltage cabinets then go to each power distribution box for power consumption. Inside, it is nothing more than an electrical device that assembles some protective devices such as switch circuit breakers into one. And high and low voltage switch cabinets are integrated devices for connecting high-voltage and low-voltage cables.

[0003] At present, for the high and low voltage switch cabinets, since the internal electrical components have operating requirements for environmental dust and air humidity, except for special harsh working conditions, normal high and low voltage switch cabinets generally set dust-proof nets and use condensation dehumidification equipment inside to control dust and humidity. And such equipment generally has air intake from the outside to the inside, and the external air flow passes through the filter screen for dust removal and then enters the equipment interior. When the humidity is too high, the internal dehumidification equipment will automatically operate to reduce the internal environmental humidity.

[0004] Firstly, in the above-mentioned prior art, on the one hand, the humidity inside will have a changing process of continuous increase and decrease, and its overall control effect is not good, making it difficult to continuously ensure that the equipment operates in a relatively stable humidity environment. At the same time, since the dust-proof net is generally flush with the outer surface of the equipment housing and is directly connected to the outside, in rainy and windy weather, rainwater and the rainwater flowing down along the housing surface will partially penetrate along the dust-proof net, which will also affect the internal air humidity. And due to dust accumulation, corresponding cleaning tools need to be set on the outer surface of the dust-proof net to clean the surface of the dust-proof net to ensure normal air intake of the equipment, which will increase the external structure of the housing and make it difficult to be flat, affecting subsequent installation and use. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a high and low voltage switch cabinet with waterproof and dustproof functions to solve the above-mentioned problems in the background art.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions.

[0007] A high and low voltage switch cabinet with waterproof and dustproof functions comprises a mounting seat, a cabinet body is fixedly mounted on the mounting seat, exhaust mesh covers are fixedly mounted on both sides of the cabinet body, an equipment cabinet is mounted on the top of the cabinet body, a dehumidifier is fixedly mounted inside the equipment cabinet, a booster fan is mounted at the bottom of the dehumidifier, the booster fan is downwardly connected to the interior of the cabinet body, a flow equalizing pipe is fixedly mounted on the bottom of the booster fan, the outer side of the flow equalizing pipe is fixedly connected to the inner wall of the cabinet body, four support rods are fixedly mounted on the top of the equipment cabinet, a rain cover is mounted between the tops of the four support rods, an induced draft fan is fixedly mounted on the top of the equipment cabinet, a spherical mesh cover is fixedly mounted on the top of the induced draft fan, a pneumatic mechanism is rotatably mounted on the spherical mesh cover, the top of the pneumatic mechanism is connected and cooperated with the rain cover, a dust removal mechanism is mounted between the four support rods, and a scraper cooperating with the dust removal mechanism is mounted on the top of the cabinet body.

[0008] As a further description of the above technical solution: the pneumatic mechanism includes a vertical rod, fan blades and a speed sensor, the speed sensor is installed to the top of the vertical rod, the speed sensor is used to continuously monitor the speed of the vertical rod, the top of the speed sensor is fixedly connected to the rain cover, the bottom end of the vertical rod passes through and is rotatably connected to the inside of the spherical mesh cover, the fan blades are fixedly installed to the bottom end of the vertical rod, and the fan blades are vertically corresponding to the induced draft fan at the bottom.

[0009] As a further description of the above technical solution: the dust removal mechanism includes a reduction motor, two rotating rollers and two electrostatic adsorption belts, the reduction motor is fixedly installed on the top of the equipment cabinet, the output end of the reduction motor is rotatably connected to one end of the rotating roller located in the front through a coupling, the outer side of the rotating roller is rotatably connected to between the two front support rods, and the outer side of the rotating roller at the rear is rotatably connected to between the two rear support rods, the two electrostatic adsorption belts are both sleeved and transmission-connected to the two rotating rollers, and the two electrostatic adsorption belts are respectively arranged in parallel on both sides of the induced draft fan.

[0010] As a further description of the above technical solution: the flow balancing tube is C-shaped, and air outlet holes arranged at equal distances are provided on opposite sides of the upper and lower parallel sections of the flow balancing tube.

[0011] As a further description of the above technical solution: a pressure sensor and a humidity sensor are fixedly installed inside the cabinet, and the pressure sensor and the humidity sensor detect the air pressure and humidity of the internal environment of the cabinet in real time.

[0012] As a further description of the above technical solution: the outer side of the vertical rod is fixedly connected with an arc-shaped brush rod that fits the outer contour of the spherical mesh cover.

[0013] As a further description of the above technical solution: A closing door is hinged to the front of the cabinet body, and a dust-proof sealing gasket is fixedly connected to the outside of the closing door.

[0014] As a further description of the above technical solution: An L-shaped handle bar is rotatably installed on the front of the cabinet body. A sliding pull rod is provided at the horizontal end of the L-shaped handle bar. A spring is sleeved on the outside of the pull rod. One end of the spring is fixedly connected to the L-shaped handle bar, and the other end of the spring is fixedly connected to the outside of the pull rod. A pressing disc is fixedly installed at the end of the pull rod facing the cabinet body, and the pressing disc is in pressing contact with the four corners of the closing door.

[0015] Compared with the prior art, the advantages of the present invention are as follows: In this solution, the top induced draft fan is used in cooperation with the dehumidifier to clean and dry the air and then convey it into the cabinet body. The pressurizing fan is used to achieve positive pressure inside the cabinet, so that the internal hot air is discharged externally to realize circulation, and at the same time, a positive pressure environment inside is formed to ensure that external dust and humid air do not enter the cabinet body, thereby ensuring a continuous dry and clean working environment inside the cabinet body and achieving good dust removal and drying effects.

[0016] In this solution, through a vertical structure and placing the air inlet end at the top and using a rain shield to prevent water, the outside of the cabinet body remains flat vertically, which is convenient for subsequent installation. The air flow is used to drive the pneumatic mechanism to continuously clean the spherical mesh cover, and the dust removal mechanism is used to continuously discharge the dust to avoid accumulation, improving the dust removal effect, reducing dust accumulation and blockage, effectively increasing the service life of the filtering structure, and reducing the maintenance frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is Figure 1 an enlarged schematic diagram of the structure of part A in Figure 3 is a front view sectional structural schematic diagram of the present invention; Figure 4 is Figure 3 an enlarged schematic diagram of the structure of part B in Figure 5 is a top view sectional structural schematic diagram of the present invention; Figure 6 is a partial three-dimensional structural schematic diagram of the present invention.

[0018] Explanation of the reference numerals in the drawings: 1. Mounting base; 2. Cabinet body; 21. Pressure plate; 3. Exhaust mesh cover; 4. Equipment cabinet; 5. Dehumidifier; 6. Boosting fan; 7. Flow equalizing pipe; 71. Air outlet hole; 8. Support rod; 9. Rain shield; 10. Induced draft fan; 11. Spherical mesh cover; 12. Pneumatic mechanism; 121. Vertical rod; 1211. Arc-shaped brush rod; 122. Fan blade; 123. Rotation speed sensor; 13. Dust removal mechanism; 131. Reduction motor; 132. Rotating roller; 133. Electrostatic adsorption belt; 14. Scraper; 15. Pressure sensor; 16. Humidity sensor; 17. Closing door; 18. L-shaped handle bar; 19. Pull rod; 20. Spring; 21. Pressure plate; 22. Dust-proof sealing gasket. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; Please refer to Figures 1 to 4 , in the present invention, a high and low voltage switch cabinet with waterproof and dustproof functions includes a mounting base 1, a cabinet body 2 is fixedly installed on the mounting base 1, exhaust mesh covers 3 are fixedly installed on both sides of the cabinet body 2, an equipment cabinet 4 is installed on the top of the cabinet body 2, a dehumidifier 5 is fixedly installed inside the equipment cabinet 4, a boosting fan 6 is installed at the bottom of the dehumidifier 5, the boosting fan 6 communicates downward with the inside of the cabinet body 2, a flow equalizing pipe 7 is fixedly installed at the bottom of the boosting fan 6, the outside of the flow equalizing pipe 7 is fixedly connected to the inner wall of the cabinet body 2, four support rods 8 are fixedly installed on the top of the equipment cabinet 4, a rain shield 9 is installed between the tops of the four support rods 8, an induced draft fan 10 is fixedly installed on the top of the equipment cabinet 4, a spherical mesh cover 11 is fixedly installed on the top of the induced draft fan 10, a pneumatic mechanism 12 is rotatably installed on the spherical mesh cover 11, the top of the pneumatic mechanism 12 is connected and cooperated with the rain shield 9, a dust removal mechanism 13 is installed between the four support rods 8, and a scraper 14 cooperating with the dust removal mechanism 13 is installed on the top of the cabinet body 2.

[0020] In the present invention, with the mounting base 1 as the device main body and the electrical components of the switch cabinet installed inside the cabinet body 2, when the equipment is running normally, first, the induced draft fan 10 operates to introduce external air into the inside of the dehumidifier 5 for drying, and the air is filtered for dust removal by the spherical mesh cover 11 to isolate external dust. As the air enters, it will drive the pneumatic mechanism 12 to rotate, and the rotating pneumatic mechanism 12 will continuously clean the surface of the spherical mesh cover 11 to ensure that the spherical mesh cover 11 will not be blocked by the dust accumulated for a long time and ensure smooth air intake.

[0021] Then, the dehumidifier 5 outputs the dried air downward. At the same time, the booster fan 6 pressurizes and conveys the dried air into the interior of the equalizing pipe 7 of the cabinet body 2. Then, the equalizing pipe 7 evenly conveys the dried air into the interior of the cabinet body 2. Since the input of the dried air increases the air pressure inside the cabinet body 2, the internal hot air is discharged outward through the two exhaust grille covers 3, realizing air flow circulation. At the same time, continuous air cooling of the internal electrical components is achieved. Due to the continuous positive pressure inside the cabinet body 2 and outward transportation, and the dried air has a low dust content after passing through the intake end filter, the way of blowing from the inside to the outside greatly reduces the dust blockage of the exhaust grille cover 3. At the same time, due to the pressurization inside the cabinet body 2, in rainy and windy weather, the humid air mixed with rainwater is less likely to enter the interior of the cabinet body 2, greatly improving the moisture-proof and dust-proof performance of the interior of the cabinet body 2.

[0022] During the operation of the equipment, the dust removal mechanism 13 continuously operates to continuously output the dust swept by the pneumatic mechanism 12 backward, and cooperate with the scraper 14 to remove and discharge it, avoiding the accumulation of dust on the top of the equipment cabinet 4. Thus, while the device has dust-proof function, it can continuously remove dust, and the structure is more compact, without increasing the protrusion around the switch cabinet, facilitating subsequent installation. And the design of continuous positive pressure inside and outward exhaust effectively avoids the entry of humid air, reduces the accumulation of dust in the exhaust structure, and increases the operating efficiency of the equipment, solving the problems in the prior art that since the dust-proof net is generally flush with the outer surface of the equipment shell and directly communicates with the outside, in rainy and windy weather, rainwater and the rainwater flowing down along the shell surface will partially penetrate along the dust-proof net, which will also affect the internal air humidity. And due to the accumulation of dust, corresponding cleaning tools need to be set on the outer surface of the dust-proof net to clean the surface of the dust-proof net to ensure the normal intake of air by the equipment, which will increase the external structure of the shell, making it difficult to be flat and affecting subsequent installation and use.

[0023] Please refer to Figure 4 and Figure 6 , in which: the pneumatic mechanism 12 includes a vertical rod 121, a fan blade 122 and a rotational speed sensor 123. The rotational speed sensor 123 is installed at the top of the vertical rod 121. The rotational speed sensor 123 is used to continuously monitor the rotational speed of the vertical rod 121. The top of the rotational speed sensor 123 is fixedly connected to the rain shield 9. The bottom end of the vertical rod 121 penetrates and is rotatably connected to the inside of the spherical mesh cover 11. The fan blade 122 is fixedly installed at the bottom end of the vertical rod 121. The fan blade 122 is vertically corresponding to the bottom induced draft fan 10.

[0024] In the present invention, as the fan blade 122 is driven to rotate by the incoming air flow, the vertical rod 121 is driven to rotate. The rotating vertical rod 121 drives the cleaning structure to clean along the spherical mesh cover 11, continuously cleaning the dust. And the rotational speed sensor 123 continuously monitors the rotational speed of the vertical rod 121. When the rotational speed exceeds the set range, the external control end can detect it in time and perform timely maintenance.

[0025] Please refer to Figure 4 and Figure 6 , where: The dust removal mechanism 13 includes a reduction motor 131, two rotating rollers 132 and two electrostatic adsorption belts 133. The reduction motor 131 is fixedly installed on the top of the equipment cabinet 4. The output end of the reduction motor 131 is rotationally connected to one end of the front rotating roller 132 through a coupling. The outer side of the rotating roller 132 is rotationally connected between the two front struts 8. The outer side of the rear rotating roller 132 is rotationally connected between the two rear struts 8. Both electrostatic adsorption belts 133 are sleeved and drivingly connected to the two rotating rollers 132. The two electrostatic adsorption belts 133 are respectively arranged in parallel on both sides of the induced draft fan 10.

[0026] In the present invention, by starting the reduction motor 131 to drive one rotating roller 132 to rotate, so as to drive the two electrostatic adsorption belts 133 to operate and the other rotating roller 132 to assist in following rotation, so as to realize continuous adsorption and backward output of the swept dust, and be scraped off by the scraper 14 to achieve continuous cleaning, avoid dust accumulation, have a good cleaning effect, and reduce the maintenance and cleaning frequency.

[0027] Please refer to Figure 3 , where: The flow equalizing pipe 7 is in a C shape, and air outlet holes 71 arranged at equal distances are respectively opened on one side of the parallel sections above and below the flow equalizing pipe 7.

[0028] In the present invention, the pressurized dry air is evenly blown from the top and the top to the middle inside the cabinet 2 through the C-shaped flow equalizing pipe 7, so as to achieve a more uniform flow and heat dissipation effect, and the high-pressure area at the center exhausts to the exhaust mesh covers 3 on both sides.

[0029] Please refer to Figure 3 , where: A pressure sensor 15 and a humidity sensor 16 are fixedly installed inside the cabinet 2, and the pressure sensor 15 and the humidity sensor 16 are used to detect the air pressure and humidity inside the cabinet 2 in real time.

[0030] In the present invention, the air pressure and humidity inside the cabinet 2 are detected in real time through the pressure sensor 15 and the humidity sensor 16, so as to ensure that the control end can master the internal environment data of the cabinet 2 in real time, which is convenient for timely detection and maintenance when the internal data is abnormal.

[0031] Please refer to Figure 4 and Figure 6 , where: An arc-shaped brush rod 1211 that fits the outer contour of the spherical mesh cover 11 is fixedly connected to the outer side of the vertical rod 121.

[0032] In the present invention, by rotating the arc-shaped brush rod 1211 along with the vertical rod 121, continuous and comprehensive cleaning of the outer surface of the spherical mesh cover 11 is realized, with a more comprehensive coverage and no dead corners in cleaning.

[0033] Please refer to Figure 1 and Figure 2 , wherein: A closing door 17 is hinged to the front of the cabinet body 2, and a dust-proof sealing gasket 22 is fixedly connected to the outer side of the closing door 17.

[0034] In the present invention, the closing door 17 facilitates the opening and closing of the cabinet body 2 for maintenance, and at the same time, the dust-proof sealing gasket 22 ensures the overall sealing effect to prevent gaps from occurring in the closing door 17, causing rainwater overflow and dust entry.

[0035] Please refer to Figure 1 and Figure 2 , wherein: An L-shaped handle bar 18 is rotatably installed on the front of the cabinet body 2. A sliding pull rod 19 is provided at the horizontal end of the L-shaped handle bar 18. A spring 20 is sleeved on the outer side of the pull rod 19. One end of the spring 20 is fixedly connected to the L-shaped handle bar 18, and the other end of the spring 20 is fixedly connected to the outer side of the pull rod 19. A pressing disc 21 is fixedly installed at the end of the pull rod 19 facing the cabinet body 2, and the pressing disc 21 is in pressing contact with the four corners of the closing door 17.

[0036] In the present invention, by rotating the L-shaped handle bar 18, the pressing disc 21 on the pull rod 19 is driven to move to the corner of the closing door 17 to assist in pressing it, avoiding the problem of gaps in the sealing at the corners after the closing door 17 is deformed due to temperature changes and long-term use, effectively improving the sealing performance and service life of the closing door 17. When it needs to be opened, only need to pull the pull rod 19 to compress the spring 20, so that the pressing disc 21 is separated from the closing door 17, and then rotate the L-shaped handle bar 18 to make the pressing disc 21 move to the cabinet body 2 and release the pull rod 19 to achieve positioning, and the loading and unloading operation is very convenient, and the sealing improvement effect is obvious.

[0037] The above is only the preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A high and low voltage switchgear with waterproof and dustproof functions, including a mounting base (1), characterized in that: A cabinet (2) is fixedly mounted on the mounting seat (1), exhaust grilles (3) are fixedly mounted on both sides of the cabinet (2), an equipment cabinet (4) is mounted on the top of the cabinet (2), a dehumidifier (5) is fixedly mounted inside the equipment cabinet (4), a booster fan (6) is mounted on the bottom of the dehumidifier (5), the booster fan (6) is downwardly connected to the inside of the cabinet (2), a flow balancing tube (7) is fixedly mounted on the bottom of the booster fan (6), the outer side of the flow balancing tube (7) is fixedly connected to the inner wall of the cabinet (2), and the top of the equipment cabinet (4) is fixedly mounted. Four support rods (8) are fixedly installed, and a rain cover (9) is installed between the tops of the four support rods (8). An induced draft fan (10) is fixedly installed on the top of the equipment cabinet (4), and a spherical mesh cover (11) is fixedly installed on the top of the induced draft fan (10). A pneumatic mechanism (12) is rotatably installed on the spherical mesh cover (11), and the top of the pneumatic mechanism (12) is connected and matched with the rain cover (9). A dust removal mechanism (13) is installed between the four support rods (8), and a scraper (14) matched with the dust removal mechanism (13) is installed on the top of the cabinet body (2).

2. The high and low voltage switchgear with waterproof and dustproof functions according to claim 1, characterized in that: The pneumatic mechanism (12) comprises a vertical rod (121), a fan blade (122) and a rotation speed sensor (123); the rotation speed sensor (123) is mounted on the top of the vertical rod (121); the rotation speed sensor (123) is used to continuously monitor the rotation speed of the vertical rod (121); the top of the rotation speed sensor (123) is fixedly connected to the rain cover (9); the bottom end of the vertical rod (121) passes through and is rotationally connected to the inside of the spherical mesh cover (11); the fan blade (122) is fixedly mounted on the bottom end of the vertical rod (121); the fan blade (122) corresponds vertically to the induced draft fan (10) at the bottom.

3. The high and low voltage switch cabinet with waterproof and dustproof functions according to claim 1, wherein: The dust removal mechanism (13) comprises a reduction motor (131), two rotating rollers (132) and two electrostatic adsorption belts (133); the reduction motor (131) is fixedly mounted on the top of the equipment cabinet (4); the output end of the reduction motor (131) is rotatably connected to one end of the rotating roller (132) located in the front through a coupling; the outer side of the rotating roller (132) is rotatably connected between two supporting rods (8) in the front; the outer side of the rotating roller (132) in the rear is rotatably connected between two supporting rods (8) in the rear; the two electrostatic adsorption belts (133) are both sleeved and transmission-connected to the two rotating rollers (132); and the two electrostatic adsorption belts (133) are respectively arranged in parallel on both sides of the induced draft fan (10).

4. A high and low voltage switchgear with waterproof and dustproof functions according to claim 1, characterized in that: The flow balancing tube (7) is C-shaped, and air outlet holes (71) arranged at equal distances are provided on opposite sides of upper and lower parallel sections of the flow balancing tube (7).

5. A high and low voltage switchgear with waterproof and dustproof functions according to claim 1, characterized in that: A pressure sensor (15) and a humidity sensor (16) are fixedly installed inside the cabinet (2), and the pressure sensor (15) and the humidity sensor (16) detect the air pressure and humidity of the internal environment of the cabinet (2) in real time.

6. The high and low voltage switch cabinet with waterproof and dustproof functions according to claim 2, characterized in that: An arc-shaped brush rod (1211) that fits the outer contour of the spherical mesh cover (11) is fixedly connected to the outside of the vertical rod (121).

7. The high and low voltage switchgear with waterproof and dustproof functions according to claim 1, wherein: A closing door (17) is hinged to the front of the cabinet body (2), and a dust-proof sealing gasket (22) is fixedly connected to the outside of the closing door (17).

8. A high and low voltage switchgear with waterproof and dustproof functions according to claim 7, characterized in that: An L-shaped handle rod (18) is rotatably installed on the front of the cabinet body (2). A sliding pull rod (19) is provided at the horizontal end of the L-shaped handle rod (18). A spring (20) is sleeved on the outside of the pull rod (19). One end of the spring (20) is fixedly connected to the L-shaped handle rod (18), and the other end of the spring (20) is fixedly connected to the outside of the pull rod (19). A pressing disc (21) is fixedly installed at the end of the pull rod (19) facing the cabinet body (2), and the pressing disc (21) is in pressing contact with the four corners of the closing door (17).

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