Dustproof dehumidification mechanism of DTU power distribution automation station terminal

Abstract

The utility model discloses a dustproof dehumidification mechanism of a DTU power distribution automation station terminal, which comprises a terminal shell, a dehumidification box and a filter screen, the dehumidification box is fixedly arranged on the inner wall of the terminal shell, a dehumidification cavity is arranged in the dehumidification box, the left side and the right side of the dehumidification cavity are respectively provided with a condensation plate and a ventilation plate, and the ventilation plate is arranged in the dehumidification cavity. A radiator and an electric wiper are arranged on the inner side surface and the outer side surface of the condensation plate respectively, a drainage channel is formed in the bottom of the dehumidification cavity, a filter screen is detachably and fixedly connected to the ventilation hole, an exhaust channel is formed in the top of the dehumidification cavity, and an exhaust fan is arranged on the exhaust channel. According to the utility model, the exhaust fan and the filter screen are arranged to filter air in the terminal shell, so that the influence of dust accumulation on equipment in a cabinet on the operation of the equipment is avoided; and a condensation plate, an electric wiper, a ventilation plate and a drainage channel are used for condensing and dehumidifying air in the terminal shell, so that the humidity of the air in the cabinet is reduced, and the equipment operates stably.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution automation terminals, in particular to a dust-proof and dehumidification mechanism for a DTU distribution automation station terminal. Background Art

[0002] Most distribution network automation terminals are highly integrated power equipment. The large amount of heat generated by electronic components during operation can easily shorten their service life. In addition, since most distribution network automation terminals are operated in a wireless remote control mode, the data transfer unit (DTU) is a wireless terminal device specifically used to convert serial port data into IP data or convert IP data into serial port data for transmission via a wireless communication network. Distribution automation terminals generally refer to cold-rolled stainless steel cabinets such as automatic control cabinets, which have multiple sets of circuit controllers and other components installed inside. If they are installed indoors, they are mostly used in the control center host room. If they are installed outdoors, it is necessary to strengthen the internal dehumidification, heat dissipation, noise reduction and other mechanisms to ensure the stable operation of the electrical appliances in the terminal under harsh conditions. Utility Model Content

[0003] The utility model aims to solve the problems existing in the above-mentioned prior art and provides a dust-proof and dehumidifying mechanism for a DTU power distribution automation station terminal to ensure the stability of the operation of electrical appliances in the terminal.

[0004] The utility model adopts the following technical solution to solve the technical problem: the dust-proof and dehumidification mechanism of the terminal of the DTU power distribution automation station comprises a terminal housing, a dehumidification box and a filter screen, the dehumidification box is fixedly installed on the inner wall of the terminal housing, a dehumidification chamber is arranged in the dehumidification box, a condensation plate and a ventilation plate are respectively arranged on the left and right sides of the dehumidification chamber, a radiator and an electric wiper are respectively arranged on the inner and outer surfaces of the condensation plate, a drainage channel is arranged at the bottom of the dehumidification chamber, the drainage channel leads to the outside of the terminal housing, a ventilation hole is arranged on the ventilation plate, connecting the dehumidification chamber and the inside of the terminal housing, a filter screen is detachably fixedly connected to the ventilation hole, an exhaust channel is arranged on the top of the dehumidification chamber, the exhaust channel connects to the inside of the terminal housing, and an exhaust fan is arranged on the exhaust channel.

[0005] Further improvement, the electric wiper includes a motor, a reducer, a horizontal shaft and a wiper strip, the output shaft of the motor is fixedly connected to the input end of the reducer, the output end of the reducer is fixedly connected to the horizontal shaft, the horizontal shaft is rotatably mounted on the condensation plate, the wiper strip is fixedly mounted on the horizontal shaft, and the wiper strip is in contact with the inner surface of the condensation plate.

[0006] Further improvement, the radiator includes a heat sink and a cooling fan, the heat sink is fixedly mounted on the outer surface of the condensation plate, the cooling fan is fixedly mounted on the heat sink, and the reducer is a dual-output shaft reducer, one of the output shafts of the reducer is fixedly connected to the cooling fan.

[0007] To be further improved, a movable water collecting ring is fixedly installed on the wiper strip, and the movable water collecting ring is sealed and slidably connected to the inner wall of the dehumidification chamber. A first water collecting groove is provided on the inner side of the movable water collecting ring, and drainage holes are circumferentially distributed on the first water collecting groove. A fixed water collecting ring is gap-fittedly provided on the movable water collecting ring, and the fixed water collecting ring is fixedly connected to the inner wall of the dehumidification chamber. A second water collecting groove is provided on the inner side of the fixed water collecting ring, and the second water collecting groove corresponds to the position of the drainage hole, and the drainage channel is communicated with the second water collecting groove.

[0008] For further improvement, a dust sensor and a humidity sensor are provided inside the terminal housing, and the radiator, electric wiper, exhaust fan, dust sensor and humidity sensor are all electrically connected to the wireless communication control module.

[0009] The beneficial effects of the utility model are: 1. It has dust-proof function: by arranging exhaust fans, dehumidification chambers, ventilation plates and filters, it can filter the air inside the terminal casing to prevent dust accumulation in the equipment in the cabinet from affecting the operation of the equipment; 2. It has dehumidification function: by arranging condensation plates, electric wipers, ventilation plates and drainage channels, it can condense and dehumidify the air inside the terminal casing, reduce the humidity of the air in the cabinet, and make the equipment run stably; 3. The dust-proof function and the dehumidification function are used in coordination: the exhaust fan can promote the air to flow through the condensation plate, improve the efficiency of condensation and dehumidification, and strengthen the air circulation flow inside the terminal casing to reduce condensation on the inner wall of the casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the first installation method of the utility model;

[0011] Figure 2 It is a structural schematic diagram of a movable water collecting ring and a fixed water collecting ring;

[0012] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of the local structure;

[0013] Figure 4 This is a structural schematic diagram of the second installation method of the utility model;

[0014] Explanation of the accompanying drawings: 1. Terminal housing, 2. Dehumidification box, 21. Dehumidification chamber, 22. Condensation plate, 23. Ventilation plate, 24. Drainage channel, 25. Exhaust channel, 26. Exhaust fan, 27. Fixed water collecting ring, 28. Second water collecting groove, 3. Filter, 4. Electric wiper, 41. Motor, 42. Reducer, 43. Horizontal axis, 44. Wiper strip, 45. Movable water collecting ring, 46. First water collecting groove, 47. Drainage hole, 48. Guide groove, 5. Radiator, 51. Heat sink, 52. Cooling fan, 6. Solenoid water valve. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] Refer to the attached Figure 1-2 : The dust-proof and dehumidifying mechanism of the terminal of the DTU distribution automation station in this embodiment 1 includes a terminal housing 1, a dehumidification box 2 and a filter 3. The dehumidification box 2 is fixedly installed on the inner wall of the terminal housing 1, and a dehumidification chamber 21 is arranged in the dehumidification box 2. A condensation plate 22 and a ventilation plate 23 are respectively arranged on the left and right sides of the dehumidification chamber 21. A radiator 5 and an electric wiper 4 are respectively arranged on the inner and outer surfaces of the condensation plate 22. A drainage channel 24 is provided at the bottom of the dehumidification chamber 21. The drainage channel 24 leads to the outside of the terminal housing 1 and is connected to a drainage pump, a water tank or a dryer. A ventilation hole connecting the dehumidification chamber 21 and the inside of the terminal housing 1 is provided on the ventilation plate 23. The filter 3 is detachably and fixedly connected to the ventilation hole. An exhaust channel 25 is provided on the top of the dehumidification chamber 21. The exhaust channel 25 is connected to the inside of the terminal housing 1, and an exhaust fan 26 is provided on the exhaust channel.

[0017] Working principle: When the exhaust fan 26 is powered on, the exhaust channel 25 extracts the gas in the dehumidification chamber 21, so that negative pressure is generated in the dehumidification chamber 21. The air in the terminal housing 1 is sucked into the dehumidification chamber 21 through the ventilation plate 23, and then discharged back to the terminal housing 1 through the exhaust channel 25. The dust is filtered out when the air passes through the filter 3. The filter 3 is fixedly connected to the dehumidification box 2 by screws and can be manually disassembled and cleaned regularly. The air after filtering and dust removal releases heat when it contacts the condensation plate 22 with a lower temperature, and condensation is generated first. The electric wiper 4 is started to scrape off the small dewdrops on the surface of the condensation plate 22, so that it converges and flows to the bottom of the dehumidification chamber 21, and is discharged to the outside of the terminal housing 1 through the drainage channel 24. The dehumidified air is discharged back to the terminal housing 1 through the exhaust channel 25. This cycle is repeated to achieve dust removal and dehumidification of the air in the terminal housing 1. The radiator 5 can dissipate the heat from the condensation plate 22. Users can choose the installation method of the dehumidification box according to the actual needs of the terminal installation environment, such as Figure 1 As shown, when the outside air is cold and wet, when the radiator 5 is fixedly installed inside the terminal housing 1, the heat is discharged into the terminal housing 1, playing the role of heating and dehumidification. Figure 4 As shown, when the outside air is dry and hot, when the radiator 5 is fixedly installed on the outside of the terminal housing 1 , the heat is discharged into the atmosphere outside the terminal housing 1 , thereby avoiding high temperature inside the terminal housing 1 .

[0018] Embodiment 2, on the basis of embodiment 1, the electric wiper 4 includes a motor 41, a reducer 42, a horizontal shaft 43 and a wiper strip 44, the output shaft of the motor 41 is fixedly connected to the input end of the reducer 42, the output end of the reducer 42 is fixedly connected to the horizontal shaft 43, the horizontal shaft 43 is rotatably mounted on the condensation plate 22, the wiper strip 44 is fixedly mounted on the horizontal shaft 43, and the wiper strip 44 is in contact with the inner surface of the condensation plate 22.

[0019] Through the above structural design, after the motor 41 is started, the motor 41 decelerates and amplifies the torque through the reducer 42 to drive the wiper strip 44 on the horizontal axis 43 to rotate, thereby realizing rotary wiping of the inner surface of the condensation plate 22.

[0020] Further preferably, the radiator 5 includes a heat sink 51 and a heat dissipation fan 52, the heat sink 51 is fixedly mounted on the outer surface of the condensation plate 22, the heat dissipation fan 52 is fixedly mounted on the heat sink 51, the reducer 42 is a double-output shaft reducer 42, the interior of which is a bevel gear transmission mechanism, and one of the output shafts of the reducer 42 is fixedly connected to the heat dissipation fan 52. Through the above structural design, the motor 41 can rotate the heat dissipation fan 52 at the same time, thereby improving the heat dissipation efficiency of the heat sink 51.

[0021] Embodiment 3, based on embodiment 2, in order to improve the dehumidification efficiency, as shown in the attached Figure 2-3 As shown, a movable water collecting ring 45 is fixedly installed on the wiper strip 44, and the movable water collecting ring 45 is sealed and slidably connected to the inner wall of the dehumidification chamber. A first water collecting groove 46 is provided on the inner side of the movable water collecting ring 45, and drainage holes 47 are distributed circumferentially on the first water collecting groove 46. A fixed water collecting ring 27 is gap-fittedly provided on the movable water collecting ring 45, and the fixed water collecting ring 27 is fixedly connected to the inner wall of the dehumidification chamber. A second water collecting groove 28 is provided on the inner side of the fixed water collecting ring 27, and the second water collecting groove 28 corresponds to the position of the drainage hole 47, and the drainage channel 24 is communicated with the second water collecting groove 28.

[0022] Through the above structural design, when the wiper strip 44 scrapes off the small water droplets on the surface of the condensation plate 22, the water will be quickly directed to the first water collecting groove 46 of the movable water collecting ring 45, and then flow to the second water collecting groove 28 of the fixed water collecting ring 27 through the drainage hole 47, and then the water flow converges and is discharged through the drainage channel 24. When the dehumidification chamber 21 is under negative pressure, the air in the cabinet flows into the movable water collecting ring 45 through the ventilation plate 23, fully contacts the surface of the condensation plate 22, improves the condensation and dehumidification effect, and then the dry gas flows into the dehumidification chamber 21 through the drainage hole 47, and then returns to the inside of the terminal housing 1 through the exhaust channel 25.

[0023] The gas flowing through the drainage hole 47 can accelerate the liquid on the first water collecting groove 46 to flow to the second water collecting groove 28, thereby improving the dehumidification efficiency. Further preferably, a guide groove 48 is provided on the wiper strip 44, and the guide groove is connected to the drainage hole 47. The water on the wiper strip 44 can flow quickly and accurately to the drainage hole 47 through the guide groove 48, thereby enhancing the drainage efficiency.

[0024] Embodiment 4, based on embodiment 1, in order to improve the intelligence level and save energy consumption, a dust sensor and a humidity sensor are provided inside the terminal housing 1, and the radiator 5, electric wiper 4, exhaust fan 26, dust sensor and humidity sensor are all electrically connected to the wireless communication control module. Figure 4 As shown, the drainage channel 24 is provided with an electromagnetic water valve 6, and the electromagnetic water valve 6 is electrically connected to the wireless communication control module. When the dust sensor senses that the dust content in the air in the terminal housing 1 is high, it triggers the exhaust fan 26 to work for a period of time. After the dust concentration in the cabinet drops significantly below the threshold, the exhaust fan 26 is controlled to stop. Similarly, the humidity sensor is used to monitor the air humidity in the terminal housing 1. When the humidity exceeds the standard, the radiator 5, the electric wiper 4 and the exhaust fan 26 are started to work together to realize the dehumidification function. The wireless communication control module is a wireless terminal device installed in the terminal housing 1. It transmits data through a wireless communication network to realize remote Internet of Things control of the dehumidification box.

[0025] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A dust-proof and dehumidification mechanism for a DTU power distribution automation station terminal, comprising a terminal housing (1), a dehumidification box (2) and a filter (3), characterized in that: A dehumidification box (2) is fixedly mounted on the inner wall of the terminal housing (1), a dehumidification chamber (21) is provided in the dehumidification box (2), a condensation plate (22) and a ventilation plate (23) are respectively provided on the left and right sides of the dehumidification chamber (21), a radiator (5) and an electric wiper (4) are respectively provided on the inner and outer surfaces of the condensation plate (22), a drainage channel (24) is provided at the bottom of the dehumidification chamber (21), the drainage channel (24) leads to the outside of the terminal housing (1), a ventilation hole is provided on the ventilation plate (23) connecting the dehumidification chamber (21) and the inside of the terminal housing (1), a filter screen (3) is detachably fixedly connected to the ventilation hole, an exhaust channel (25) is provided at the top of the dehumidification chamber (21), the exhaust channel (25) is connected to the inside of the terminal housing (1), and an exhaust fan (26) is provided on the exhaust channel.

2. The dust and moisture removal mechanism of the DTU distribution automation station terminal according to claim 1 is characterized in that: The electric wiper (4) comprises a motor (41), a reducer (42), a transverse shaft (43) and a wiper strip (44); the output shaft of the motor (41) is fixedly connected to the input end of the reducer (42); the output end of the reducer (42) is fixedly connected to the transverse shaft (43); the transverse shaft (43) is rotatably mounted on the condensation plate (22); the wiper strip (44) is fixedly mounted on the transverse shaft (43); and the wiper strip (44) is in contact with the inner surface of the condensation plate (22).

3. The dust and moisture removal mechanism of the DTU distribution automation station terminal according to claim 2 is characterized in that: The radiator (5) comprises a heat sink (51) and a heat dissipation fan (52); the heat sink (51) is fixedly mounted on the outer surface of the condensation plate (22); the heat dissipation fan (52) is fixedly mounted on the heat sink (51); the reducer (42) is a dual-output shaft reducer (42); one of the output shafts of the reducer (42) is fixedly connected to the heat dissipation fan (52).

4. The dust and moisture removal mechanism of the DTU distribution automation station terminal according to claim 2 is characterized in that: A movable water collecting ring (45) is fixedly mounted on the wiper strip (44), and the movable water collecting ring (45) is in sealed sliding connection with the inner wall of the dehumidification chamber. A first water collecting groove (46) is provided on the inner side of the movable water collecting ring (45), and drainage holes (47) are distributed circumferentially on the first water collecting groove (46). A fixed water collecting ring (27) is provided on the movable water collecting ring (45) in a clearance fit, and the fixed water collecting ring (27) is fixedly connected with the inner wall of the dehumidification chamber. A second water collecting groove (28) is provided on the inner side of the fixed water collecting ring (27), and the second water collecting groove (28) corresponds to the position of the drainage hole (47), and the drainage channel (24) is connected with the second water collecting groove (28).

5. The dust and moisture removal mechanism of the DTU distribution automation station terminal according to any one of claims 1 to 4, characterized in that: A dust sensor and a humidity sensor are provided inside the terminal housing (1), and the radiator (5), the electric wiper (4), the exhaust fan (26), the dust sensor and the humidity sensor are all electrically connected to the wireless communication control module.

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