An outdoor electrical equipment box

Abstract

The present invention relates to the field of power equipment technology, and in particular to an outdoor electrical equipment box. Technical problem: The outside air is doubly blocked by the outer dustproof plate and the inner dustproof plate, making it difficult for the air to enter the box, that is, the air entering the box cannot effectively dissipate the heat inside it. Technical solution: An outdoor electrical equipment box, comprising a box, an air duct, an exhaust fan and an exhaust pipe, etc.; the box is connected to and fixedly connected to the air duct; the air duct is provided with a plurality of rectangular ventilation holes; the air duct is fixedly connected to the exhaust fan; the box is connected to and fixedly connected to the exhaust pipe. By repeatedly moving the filter, the dust adhering to the filter is brushed off by a brush rod, so that there is no dust adhering to the part of the filter at the rectangular ventilation hole.

Description

Technical Field

[0001] The present invention relates to the technical field of power equipment, and in particular to an outdoor electrical equipment box. Background Art

[0002] Existing electrical equipment boxes usually have heat dissipation windows on the side walls of the box to prevent the large amount of heat generated by the electrical components from being retained in the box during operation, which would cause the internal temperature of the box to be too high and affect the normal operation of the electrical components. However, in areas with a lot of sand and dust in the air, such as the northwest, sand and dust will enter the power cabinet through the heat dissipation windows along with the air, causing greater damage to the electrical components.

[0003] To avoid the above problems, a Chinese patent has been filed: a ventilation and dustproof power cabinet (CN116598901A). This power cabinet has a multi-layer dustproof net in the middle of the dustproof plate that forms the crawler track. The dust entering through the exhaust holes of the ventilation plate is intercepted by the outer dustproof plate. Then, as the crawler track moves, the inner dustproof plate rotates to the outside to continue intercepting dust, while the outer dustproof plate rotates to the inside after cleaning and is ready for reuse.

[0004] However, since the outer dustproof plate and the inner dustproof plate are both located near the ventilation plate, that is, after the outside air passes through the exhaust holes provided in the ventilation plate, it still needs to pass through the outer dustproof plate and the inner dustproof plate before it can enter the box to dissipate heat for the electrical components. In this process, the outside air is doubly blocked by the outer dustproof plate and the inner dustproof plate and is difficult to enter the box. That is, the total amount of air entering the box is relatively small, and the air entering the box cannot effectively dissipate the heat inside it, which causes the temperature inside the box to still be high. Summary of the Invention

[0005] In order to overcome the disadvantage that the outside air is difficult to enter the box due to the double obstruction of the outer dustproof plate and the inner dustproof plate, that is, the air entering the box cannot effectively dissipate the heat inside it, the present invention provides an outdoor electrical equipment box.

[0006] Technical solution: An outdoor electrical equipment box, including a box body, an air duct, an exhaust fan and an exhaust pipe; the box body is connected to and fixedly connected to the air duct; the air duct is provided with a plurality of rectangular ventilation holes; the air duct is fixedly connected to the exhaust fan; the box body is connected to and fixedly connected to the exhaust pipe; it also includes a long rod, a guide rod, a filter screen, a brush rod and a power assembly; the box body is provided with two mounting cavities distributed upper and lower; a long rod is rotatably connected in each mounting cavity; a guide rod is fixedly connected to each mounting cavity; the upper long rod is rolled up and fixedly connected to a filter screen for intercepting sand and dust, and the other end of the filter screen passes around the upper guide rod and the lower guide rod in turn, and is fixedly connected to the lower long rod; each mounting cavity is rotatably connected to a brush rod for brushing off sand and dust attached to the filter screen; a rectangular through hole one is opened in the upper mounting cavity; a rectangular through hole two is opened in the lower mounting cavity; the air duct is connected to a power assembly matching the number of long rods, and each power assembly is connected to a corresponding long rod and brush rod, and the power assembly is used to drive the corresponding long rod and brush rod to rotate.

[0007] In addition, it is particularly preferred that the exhaust pipe is L-shaped, and the air outlet of the exhaust pipe is downward.

[0008] In addition, it is particularly preferred that the inner bottom of the upper mounting cavity is arranged in an inclined state with the lowest point located at the connection point between the upper mounting cavity and the rectangular through hole.

[0009] In addition, it is particularly preferred that it further includes a transmission rod, a rectangular belt, a DC motor, a delivery pipe 1, a delivery pipe 2, a sprayer, a water pipe and a scraping assembly; a detector is provided in the air duct; the box body is rotatably connected to four transmission rods; all the transmission rods are jointly connected to a rectangular belt for removing sand and dust passing through the filter screen; the box body is fixedly connected to a plurality of DC motors, and the output shaft of each DC motor is fixedly connected to the corresponding transmission rod; the box body is fixedly connected to the delivery pipe 1, and the air inlet of the delivery pipe 1 is connected to the air duct, and The air duct is connected to the box body through the delivery pipe 1, and the air outlet of the delivery pipe 1 is located between the upper inner side of the box body and the upper outer side of the rectangular belt; the box body is fixedly connected to the delivery pipe 2, the air inlet of the delivery pipe 2 is located between the upper inner side of the box body and the upper outer side of the rectangular belt, and the air outlet of the delivery pipe 2 is located on the inner side of the rectangular belt; the box body is fixedly connected to a sprayer for spraying water to the upper outer side of the rectangular belt, and a pump is provided in the sprayer; the box body is fixedly connected to a water pipe, and the water pipe is connected to the sprayer; the box body is fixedly connected to a scraping assembly, and the scraping assembly is in contact with the rectangular belt.

[0010] In addition, it is particularly preferred that the scraping assembly includes a rectangular tube and a scraper; the box body is fixedly connected to the rectangular tube; the rectangular tube is fixedly connected to the scraper for scraping sand and dust on the rectangular belt, and the scraper is in contact with the rectangular belt.

[0011] Furthermore, it is particularly preferred that the scraper is provided with two stops.

[0012] In addition, it is particularly preferred that it also includes a mounting plate, a motor, a mounting rod and a clapper; a mounting plate is connected to the front and rear sides of the box; a plurality of motors are fixed to the rear mounting plate; a plurality of other motors are fixed to the front mounting plate; the rotating part of each motor is fixed to a mounting rod; and each mounting rod is fixed to several clappers for intercepting and slapping the air.

[0013] In addition, it is particularly preferred that it also includes an electric push rod, a circular mounting frame, a limiting plate, a blocking plate and a spring telescopic rod; a plurality of electric push rods are fixed to the front and rear sides of the box body, and the telescopic part of each electric push rod is fixed to the corresponding mounting plate, and each mounting plate is connected to the box body through the corresponding electric push rod; each mounting rod is rotatably and slidably connected to a circular mounting frame, and each circular mounting frame is rotatably connected to the box body; each circular mounting frame is fixed to a plurality of limiting plates; each clapper is slidably connected to a blocking plate for limiting air flow; each blocking plate is provided with an inclined portion, and the inclined portion on each blocking plate is in contact with the corresponding limiting plate; each clapper is fixed to a number of spring telescopic rods, and the telescopic part of each spring telescopic rod is fixed to the corresponding blocking plate.

[0014] In addition, it is particularly preferred that an electric heating plate is further included; and the box body is fixedly connected with a plurality of electric heating plates.

[0015] In addition, it is particularly preferred that an electric refrigeration pipe is further included; the box body is fixedly connected with the electric refrigeration pipe.

[0016] Beneficial effect: The filter is repeatedly moved while the brush rod removes the dust adhering to the filter, so that the filter is located in the rectangular ventilation hole without dust adhering. This avoids the problem in the prior art that the outside air is blocked by the outer dustproof plate and the inner dustproof plate and is difficult to enter the box, that is, the air entering the box cannot effectively dissipate the heat inside the box.

[0017] By passing air between the upper side of the box body and the upper side of the rectangular belt, and then spraying water onto the rotating rectangular belt through a sprayer, the water on the rectangular belt can remove sand and dust in the air. This prevents the sand and dust attached to the filter from being squeezed through the filter mesh by the wind and entering the air duct along with the outside air when wind blows, thereby causing the air entering the box to still contain sand and dust.

[0018] The clappers allow the air to stay between the upper side of the box and the upper side of the rectangular belt for a relatively long time. At the same time, the air passing through the upper side of the box comes into contact with the water on the upper side of the rectangular belt, thereby avoiding the problem of a small amount of sand and dust still existing in the air due to the presence of parts of the air that do not come into contact with the upper side of the rectangular belt.

[0019] The air is moved along the S-shaped flow channel formed by the cooperation of all the clappers and baffles. At the same time, the clappers and baffles cooperate with each other to interfere with and beat the air to avoid strong winds. Since the air will quickly pass between the upper side of the box body and the upper side of the outer rectangular belt, if the clappers are still used to interfere with and beat the air, the quickly passing air will find it difficult to make good contact with the upper side of the outer rectangular belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the first structure disclosed for the outdoor electrical equipment box of the present invention;

[0021] Figure 2 This is a schematic diagram of the second structure disclosed for the outdoor electrical equipment box of the present invention;

[0022] Figure 3 This is a schematic diagram of the third structure disclosed for the outdoor electrical equipment box of the present invention;

[0023] Figure 4 A plan view of the air duct, exhaust fan, long rod, guide rod, filter screen and brush rod disclosed in the outdoor electrical equipment box of the present invention;

[0024] Figure 5 This is a schematic structural diagram of the box body, transmission rod, rectangular belt, mounting rod, clapper and circular mounting frame disclosed in the outdoor electrical equipment box of the present invention;

[0025] Figure 6 A schematic structural diagram of the motor, mounting rod, clapper, circular mounting frame, limiting plate, blocking plate and spring telescopic rod disclosed in the outdoor electrical equipment box of the present invention;

[0026] Figure 7 This is a first state diagram disclosed for the outdoor electrical equipment box of the present invention;

[0027] Figure 8 This is a second state diagram disclosed for the outdoor electrical equipment box of the present invention.

[0028] In the figure: 1-box, 2-air duct, 3-exhaust fan, 4-exhaust pipe, 5-long rod, 6-guide rod, 7-filter, 8-brush rod, 101-servo motor, 102-gear 1, 103-gear 2, 201-transmission rod, 202-rectangular belt, 203-DC motor, 204-delivery pipe 1, 205-delivery pipe 2, 206-sprayer, 207-water pipe, 208-rectangular pipe, 20 9-scraper, 301-mounting plate, 302-motor, 303-mounting rod, 304-clapper, 401-electric push rod, 402-circular mounting frame, 403-limiting plate, 404-blocking plate, 405-spring telescopic rod, 501-electric heating plate, 502-electric refrigeration tube, 2a-rectangular ventilation hole, 2b-mounting cavity, 2c-rectangular through hole 1, 2d-rectangular through hole 2, 209a-blocking part. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] An outdoor electrical equipment box, such as Figure 1-4 As shown, it includes a box body 1, an air duct 2, an exhaust fan 3 and an exhaust pipe 4; the box body 1 is connected to and fixedly connected to the air duct 2; the air duct 2 is provided with a plurality of rectangular ventilation holes 2a; the air duct 2 is bolted to the exhaust fan 3 for drawing outside air into the box body 1; the box body 1 is connected to and fixedly connected to the exhaust pipe 4 for allowing the air entering the box body 1 to be discharged from the inside thereof;

[0032] It also includes a long rod 5, a guide rod 6, a filter screen 7, a brush rod 8 and a power assembly; the box body 1 is provided with two upper and lower installation chambers 2b; each installation chamber 2b is rotatably connected to a long rod 5; each installation chamber 2b is fixedly connected to a guide rod 6; the upper long rod 5 is rolled up and fixedly connected to the filter screen 7, and the other end of the filter screen 7 passes around the upper guide rod 6 and the lower guide rod 6 in turn, and is fixedly connected to the lower long rod 5; each installation chamber 2b is rotatably connected to a brush rod 8; the upper installation chamber 2b is provided with a rectangular through hole 1 2c for discharging the sand and dust inside it to the outside world; the lower installation chamber 2b is provided with a rectangular through hole 2d for discharging the sand and dust inside it to the outside world; the air duct 2 is connected to two power assemblies distributed upper and lower, and each power assembly is connected to the corresponding long rod 5 and brush rod 8, and the power assembly is used to drive the corresponding long rod 5 and brush rod 8 to rotate.

[0033] The power assembly includes a servo motor 101, gear one 102 and gear two 103; the air duct 2 is bolted to the servo motor 101, and the output shaft of the servo motor 101 is fixedly connected to the corresponding long rod 5; the long rod 5 is fixedly connected to gear one 102; the bristle rod 8 is fixedly connected to gear two 103, and gear two 103 is meshed with gear one 102.

[0034] The exhaust pipe 4 is L-shaped, and the air outlet of the exhaust pipe 4 is downward facing, which is used to prevent external air from entering the interior of the box body 1 through the exhaust pipe 4.

[0035] The inner bottom of the upper mounting cavity 2b is set to an inclined state with the lowest point located at the connection between the upper mounting cavity 2b and the rectangular through hole 2c. This setting is used to guide the sand and dust in the upper mounting cavity 2b into the rectangular through hole 2c.

[0036] The specific operation of the above embodiment 1 is as follows: when the electrical components in the box body 1 are to be cooled, the exhaust fan 3 is controlled to start, and the exhaust fan 3 draws the outside air so that the outside air enters the air duct 2 through the rectangular ventilation holes 2a, and then enters the box body 1, and finally is discharged to the outside through the exhaust pipe 4, so that the air flows in the box body 1, thereby dissipating the heat in the box body 1 through the flowing air, thereby achieving the effect of cooling the electrical components in the box body 1;

[0037] When the outside air enters the air duct 2 through the rectangular ventilation holes 2a, the filter 7 intercepts the sand and dust in the air to prevent the sand and dust contained in the air from entering the box 1 and contacting the electrical components therein, thereby affecting the normal operation of the electrical components.

[0038] During this interception process, if Figure 4 As shown, first, the output shaft of the upper servo motor 101 is controlled to drive the corresponding long rod 5 to rotate counterclockwise as viewed from the front to the back, so that the upper long rod 5 unwinds the portion of the filter 7 rolled up thereon. At the same time, the output shaft of the lower servo motor 101 is controlled to drive the corresponding long rod 5 to rotate counterclockwise as viewed from the front to the back, so that the lower long rod 5 continuously rewinds the filter 7, causing the filter 7 to continuously move downward. The portion of the filter 7 located at the rectangular ventilation hole 2a is continuously replaced, so that no sand or dust is attached to the portion of the filter 7 located at the rectangular ventilation hole 2a.

[0039] During the process of the lower long rod 5 retracting the filter 7, the rotating lower long rod 5 drives the brush rod 8 to rotate through the corresponding gear 1 102 and gear 2 103 in sequence, so that the lower brush rod 8 brushes away the sand and dust attached to the filter 7, so that the part of the filter 7 retracted on the lower long rod 5 is free of sand and dust.

[0040] When the portion of the filter screen 7 wound onto the upper long rod 5 is unwound, the output shaft of the upper servo motor 101 is controlled to drive the corresponding long rod 5 to rotate clockwise, so that the upper long rod 5 rolls up the filter screen 7. At the same time, the output shaft of the lower servo motor 101 is controlled to drive the corresponding long rod 5 to rotate clockwise, so that the lower long rod 5 unwinds the portion of the filter screen 7 wound onto it. At the same time, in this process, since the brush rods 8, gear 1 102 and gear 2 103 on the upper and lower sides have the same function, there is no sand or dust attached to the portion of the filter screen 7 wound onto the upper long rod 5.

[0041] In this way, the filter 7 is repeatedly moved while the brush rod 8 brushes away the dust adhering to the filter 7, so that the part of the filter 7 located in the rectangular ventilation hole 2a is free of dust adhering. This avoids the problem in the prior art that the outside air is blocked by the outer dustproof plate and the inner dustproof plate and is difficult to enter the box body 1, that is, the air entering the box body 1 cannot effectively dissipate the heat therein;

[0042] Furthermore, when the upper brush rod 8 removes the dust adhering to the filter screen 7, the dust brushed off will fall to the bottom of the installation cavity 2b. At this time, since the bottom of the installation cavity 2b is set in an inclined state with the lowest point located at the connection between the upper installation cavity 2b and the rectangular through hole 1 2c, the dust brushed off will move along the bottom of the installation cavity 2b toward the rectangular through hole 1 2c, and finally be discharged to the outside through the rectangular through hole 1 2c.

[0043] Furthermore, when the lower brush rod 8 brushes away the dust adhering to the filter screen 7, the dust brushed off falls into the installation cavity 2b and is directly discharged to the outside through the second rectangular through hole 2d.

[0044] Example 2

[0045] On the basis of Example 1, Figure 1-3 and Figure 5-6As shown, it also includes a transmission rod 201, a rectangular belt 202, a DC motor 203, a delivery pipe 1 204, a delivery pipe 205, a sprayer 206, a water pipe 207 and a scraping assembly; a detector for detecting whether wind is blowing is provided in the air duct 2; the box 1 is rotatably connected to four rectangularly distributed transmission rods 201; all the transmission rods 201 are commonly connected to the rectangular belt 202; the box 1 is bolted to two DC motors 203, and the output shaft of each DC motor 203 is fixed to the corresponding transmission rod 201; the box 1 is fixed to the delivery pipe 1 204, and the air inlet of the delivery pipe 1 204 is connected to the air duct 2, and the air duct 2 is connected to the delivery pipe 1 204 through the delivery pipe 1 20 4 is connected to the box body 1, and the air outlet of the delivery pipe 1 204 is located between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202; the box body 1 is fixedly connected to the delivery pipe 205, the air inlet of the delivery pipe 205 is located between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202, and the air outlet of the delivery pipe 205 is located on the inner side of the rectangular belt 202; the box body 1 is bolted to a sprayer 206, and the sprayer 206 is equipped with a pump; the box body 1 is fixedly connected to a water pipe 207 for delivering water to the sprayer 206, and the water pipe 207 is connected to the sprayer 206; the box body 1 is fixedly connected to a scraping assembly for scraping sand and dust on the rectangular belt 202, and the scraping assembly is in contact with the rectangular belt 202.

[0046] The scraping assembly includes a rectangular tube 208 and a scraper 209 ; the box body 1 is fixedly connected to the rectangular tube 208 ; the scraper 209 is fixedly connected to the rectangular tube 208 , and the scraper 209 is in contact with the rectangular belt 202 .

[0047] The scraper 209 is provided with two blocking parts 209 a distributed front and back, and the blocking parts 209 a are used to collect the sand and dust scraped off by the scraper 209 into the rectangular tube 208.

[0048] It also includes a mounting plate 301, a motor 302, a mounting rod 303 and a clapper 304; a mounting plate 301 is connected to the front and rear sides of the box body 1; three motors 302 are bolted to the rear mounting plate 301; another two motors 302 are bolted to the front mounting plate 301; the rotating part of each motor 302 is fixedly connected to a mounting rod 303; each mounting rod 303 is fixedly connected to four clappers 304.

[0049] The specific operation of the above-mentioned embodiment 2 is as follows: Considering that when wind blows, after the wind enters the rectangular ventilation hole 2a, the wind will squeeze the sand and dust attached to the filter 7. Under the action of squeezing, the sand and dust will pass through the mesh of the filter 7 and enter the air duct 2 together with the outside air, thereby causing the sand and dust to still exist in the air entering the box 1;

[0050] Therefore, by arranging the air outlet of the conveying pipe 1 204 between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202 on the box body 1, and the air inlet of the conveying pipe 1 204 is connected to the air duct 2, and the air duct 2 is connected to the box body 1 through the conveying pipe 1 204, so that after the outside air enters the air duct 2, it passes through the conveying pipe 1 204, the space between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202, and the conveying pipe 2 205 in sequence before coming into contact with the electrical components. After the installation of the electrical equipment box, it is also necessary to connect the external rubber tube to the water pipe 207, and convey water to the water pipe 207 through the external rubber tube. At the same time, a detector arranged in the air duct 2 is used to detect whether there is wind. The detection method is to judge whether there is wind by the overall flow rate of the outside air entering the air duct 2. That is, when there is no wind, the overall flow rate of the outside air entering the air duct 2 is relatively slow, and when there is wind, the overall flow rate of the outside air entering the air duct 2 is relatively fast.

[0051] Therefore, when the detector provided in the air duct 2 detects that the wind is starting, it first controls the pump provided in the sprinkler 206 to pump water into the interior thereof through the water pipe 207, and then sprays the water to the right portion of the outer upper side of the rectangular belt 202 through the sprinkler 206. At the same time, the output shaft of the DC motor 203 is controlled to drive the rectangular belt 202 to rotate counterclockwise as viewed from the front to the back through the corresponding transmission rod 201. As the rectangular belt 202 continues to rotate, each portion of the outer upper side of the rectangular belt 202 will absorb water. Therefore, when the air passes between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202, When the air contacts the outer upper side of the rectangular belt 202, since the outer upper side of the rectangular belt 202 is adsorbed with water, the dust in the air will adhere to the water on the outer upper side of the rectangular belt 202, thereby removing the dust in the air. As the rectangular belt 202 continues to rotate, when the dust on the outer left side of the rectangular belt 202 passes through the scraper 209, the dust on the outer left side of the rectangular belt 202 is scraped off by the scraper 209. The scraped dust moves downward along the scraper 209 and then enters the rectangular tube 208. Finally, it is discharged to the outside through the rectangular tube 208, so that the rectangular belt 202 can circulate and remove dust in the air.

[0052] In this way, by passing air between the inner upper side of the housing 1 and the outer upper side of the rectangular belt 202, and then spraying water onto the rotating rectangular belt 202 through the sprayer 206, the water on the rectangular belt 202 can remove sand and dust in the air. This prevents the sand and dust attached to the filter 7 from being squeezed by the wind and passing through the mesh of the filter 7 and entering the air duct 2 along with the outside air when wind blows, thereby preventing the problem of sand and dust still being present in the air entering the housing 1.

[0053] Considering that the air does not completely contact the upper outer side of the rectangular belt 202 when passing between the upper inner side of the box body 1 and the upper outer side of the rectangular belt 202, that is, the sand and dust in the part of the air passing near the upper inner side of the box body 1 is difficult to adhere to the water on the upper outer side of the rectangular belt 202. At the same time, when the wind blows, the wind will push the outside air into the air duct 2, that is, the air will pass between the upper inner side of the box body 1 and the upper outer side of the rectangular belt 202 relatively quickly, so there will be more parts in the air that do not contact the upper outer side of the rectangular belt 202. Therefore, in this scenario, there is still a small amount of sand and dust in the air;

[0054] Therefore, in the process of the sprinkler 206 spraying water, based on the view from front to back, the rotating part of the control motor 302 drives the corresponding mounting rod 303 and its connected parts to continuously rotate clockwise and counterclockwise, thereby interfering with the air passing between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202 through the clapper 304, so that the time the air stays between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202 is increased, and during the rotation process, the clapper 304 will continuously slap the air, thereby enhancing the contact between the air and the outer upper side of the rectangular belt 202, that is, the part of the air passing near the inner upper side of the box body 1 will contact the water on the outer upper side of the rectangular belt 202, thereby avoiding the existence of parts in the air that will not contact the outer upper side of the rectangular belt 202, which will lead to the problem of a small amount of sand and dust still existing in the air.

[0055] Example 3

[0056] On the basis of Example 2, Figure 1-3 and Figure 5-8 As shown, it also includes an electric push rod 401, a circular mounting frame 402, a limiting plate 403, a blocking plate 404 and a spring telescopic rod 405; two electric push rods 401 are bolted to the front and rear sides of the box body 1, and the telescopic portion of each electric push rod 401 is fixedly connected to the corresponding mounting plate 301, and each mounting plate 301 is connected to the box body 1 through the corresponding electric push rod 401; each mounting rod 303 is rotatably and slidably connected to a circular mounting frame 402, and each circular mounting frame 402 is rotatably connected to the box body 1; each circular mounting frame 402 is fixedly connected to four limiting plates 403; each clapping plate 304 is slidably connected to the blocking plate 404; each blocking plate 404 is provided with an inclined portion, and the inclined portion on each blocking plate 404 is in contact with the corresponding limiting plate 403; each clapping plate 304 is fixedly connected to three spring telescopic rods 405, and the telescopic portion of each spring telescopic rod 405 is fixedly connected to the corresponding blocking plate 404. It also includes an electric heating plate 501; the box body 1 is fixed with four electric heating plates 501 for heating the air.

[0057] It also includes an electric refrigeration pipe 502; the box body 1 is fixed with the electric refrigeration pipe 502 for cooling the rectangular belt 202.

[0058] The specific operation of the above-mentioned embodiment 3 is as follows: Considering that when a strong wind blows, the strong wind will push a large amount of external air into the air duct 2, that is, the air will quickly pass between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202. At this time, if the flapper 304 is still used to interfere with and flap the air passing between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202, it will be difficult for the quickly passing air to come into good contact with the outer upper side of the rectangular belt 202, thereby resulting in a small amount of sand and dust still existing in the air in this scenario;

[0059] Therefore, when the detector installed in the air duct 2 detects a strong wind, it first controls the telescopic part of the electric push rod 401 to drive the mounting rod 303, the clapper board 304, the blocking plate 404 and the spring telescopic rod 405 to move toward the direction of the circular mounting frame 402 through the corresponding mounting plate 301 and the motor 302 in sequence, until the clapper board 304 contacts the corresponding circular mounting frame 402. During this process, since the limiting plate 403 will limit the corresponding blocking plate 404, and the inclined part on the blocking plate 404 contacts the corresponding limiting plate 403, when moving, the blocking plate 404 will move on the clapper board 304 in the direction away from the mounting rod 303 under the restriction of the corresponding limiting plate 403, and the blocking plate 404 that has completed the movement will be as shown in the figure. Figure 7 The state shown in the middle left 1 becomes as follows Figure 7 In the state shown in the middle right 1, at this time, the upper blocking plate 404 will be at the lower edge of the inner side of the box body 1, and there is a relatively small gap between the two, and the lower blocking plate 404 will be at the upper edge of the outer side of the rectangular belt 202, and there is also a relatively small gap between the two. Moreover, when the movement is completed, the clapper 304 and the blocking plate 404 on each mounting rod 303 will be as shown in the figure. Figure 8 The state shown in the middle left 1 becomes as follows Figure 8 In the state shown in the middle right 1, at this time, the clappers 304 and the blocking plates 404 on all the mounting rods 303 cooperate to form an S-shaped flow channel between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202;

[0060] Therefore, when the air passes between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202, the air is restricted by the clappers 304 and the blocking plates 404 on all the mounting rods 303, and the air moves along the S-shaped flow channel formed by the cooperation of all the clappers 304 and the blocking plates 404, so that the air stays between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202 for a longer time. At the same time, the rotating part of the control motor 302 drives the corresponding mounting rod 303 and the parts connected thereto to rotate repeatedly, so that the clappers 304 and The blocking plates 404 cooperate with each other to interfere with the air, thereby further prolonging the residence time of the air between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202. At the same time, they also have a flapping effect, which can also enhance the contact between the air and the outer upper side of the rectangular belt 202, thereby avoiding the problem that when strong winds occur, the air will quickly pass between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202. If the flappers 304 still interfere and flap the air, the quickly passing air will have difficulty in making good contact with the outer upper side of the rectangular belt 202.

[0061] Considering that at night, due to the temperature generated by the electrical components inside the box 1, the inner wall of the box 1 will be in a high temperature state, while the outer wall of the box 1 is in direct contact with the outside air and is in a low temperature state, and there is a lot of moisture in the outside air at night, when the outside air enters the box 1 and mixes with the hot gas inside it, the moisture in the air will form a condensation reaction on the inner wall of the box 1, that is, condensation water will appear on the inner wall of the box 1, and the presence of condensation water will easily cause safety hazards to the electrical components in the box 1. Therefore, at night, if water is still sprayed onto the rotating rectangular belt 202 by the sprayer 206 to remove dust, it will inevitably cause the moisture in the air to increase, and then cause more condensation water to appear on the inner wall of the box 1, and the risk of safety hazards to the electrical components will be greatly increased;

[0062] Therefore, at night, the rectangular belt 202 is first controlled to rotate in the same manner as described above, and the clapper 304 interferes with and claps the air passing between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202 in the same manner as described above. At this time, the electric heating plate 501 is controlled to heat the air passing between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202. At this time, since the rectangular belt 202 is in a rotating state, the electric heating plate 501 heats the outer upper side of the rectangular belt 202 for a relatively short time, that is, the temperature of the outer upper side of the rectangular belt 202 will be lower than the temperature of the heated air. When the air passes between the inner upper side of the box body 1 and the outer upper side of the rectangular belt 202, the moisture in the air will form a condensation reaction on the outer upper side of the rectangular belt 202, thereby removing the moisture in the air, so as to avoid the problem of condensation water when the air enters the box body 1 due to the presence of a large amount of moisture in the outside air at night;

[0063] It should be noted that in areas with a lot of sand and dust in the air, such as the northwest, the temperature at night is usually around zero degrees, and the temperature of the air heated by the electric heating plate 501 only needs to be higher than the temperature of the upper outer side of the rectangular belt 202 for a condensation reaction to occur. Under the influence of the large amount of heat generated by the electrical components when working, the temperature inside the box 1 will be much higher than the temperature of the heated air. Therefore, the heated air can still dissipate heat for the electrical components. When the detector set in the air duct 2 detects that wind or strong wind is blowing, since the moisture in the air has formed water on the upper outer side of the rectangular belt 202, the sprayer 206 does not need to work, and the clapper 304 and the blocking plate 404 can work in the same way as described above. In this way, if water is still sprayed onto the rotating rectangular belt 202 by the sprayer 206 to remove dust at night, the moisture in the air will inevitably increase, which will lead to more condensed water in the box 1, and the risk of safety hazards to the electrical components will be greatly increased.

[0064] Furthermore, when the electric heating plate 501 is heating the air, it controls the electric refrigeration tube 502 to operate, and cools down the rectangular belt 202 through the electric refrigeration tube 502, so as to avoid the problem that although the electric heating plate 501 heats the upper outer side of the rectangular belt 202 for a relatively short time, after the rectangular belt 202 absorbs heat for a long time, the temperature of the rectangular belt 202 is easily the same as the temperature of the air after heating, thereby causing the moisture in the air to be unable to condense on the upper outer side of the rectangular belt 202.

[0065] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall equally within the scope limited by the appended claims of the application.

Claims

1. An outdoor electrical equipment box, comprising a box body (1), an air duct (2), an exhaust fan (3) and an exhaust pipe (4); the box body (1) is connected to and fixedly connected to the air duct (2); the air duct (2) is provided with a plurality of rectangular ventilation holes (2a); the air duct (2) is fixedly connected to the exhaust fan (3); the box body (1) is connected to and fixedly connected to the exhaust pipe (4); its characteristics are: The utility model also includes a long rod (5), a guide rod (6), a filter screen (7), a brush rod (8) and a power assembly; the box body (1) is provided with two installation chambers (2b) distributed up and down; a long rod (5) is rotatably connected in each installation chamber (2b); a guide rod (6) is fixed in each installation chamber (2b); the upper long rod (5) is rolled up and fixed with a filter screen (7) for intercepting sand and dust, and the other end of the filter screen (7) is passed around the upper guide rod (6) and the lower guide rod (6) in turn, and is connected to the lower guide rod (6). The long rod (5) is fixed; each mounting cavity (2b) is rotatably connected to a brush rod (8) for brushing away sand and dust attached to the filter (7); the upper mounting cavity (2b) is provided with a rectangular through hole 1 (2c); the lower mounting cavity (2b) is provided with a rectangular through hole 2 (2d); the air duct (2) is connected to power assemblies matching the number of the long rods (5), and each power assembly is connected to a corresponding long rod (5) and brush rod (8), and the power assembly is used to drive the corresponding long rod (5) and brush rod (8) to rotate; The invention also includes a transmission rod (201), a rectangular belt (202), a DC motor (203), a delivery pipe (204), a delivery pipe (205), a sprayer (206), a water pipe (207) and a scraping assembly; a detector is provided in the air duct (2); the box (1) is rotatably connected to four transmission rods (201); all the transmission rods (201) are commonly connected to a rectangular belt (202) for removing sand and dust passing through the filter (7); the box (1) is fixedly connected to a plurality of DC motors (203), and the output shaft of each DC motor (203) is fixedly connected to the corresponding transmission rod (201); the box (1) is fixedly connected to the delivery pipe (204), and the air inlet of the delivery pipe (204) is connected to the air duct (2), and the air duct (2) is connected to the air duct (2) through the delivery pipe. The delivery pipe 1 (204) is connected to the box body (1), and the air outlet of the delivery pipe 1 (204) is located between the inner upper side of the box body (1) and the outer upper side of the rectangular belt (202); the box body (1) is fixedly connected to the delivery pipe 2 (205), the air inlet of the delivery pipe 2 (205) is located between the inner upper side of the box body (1) and the outer upper side of the rectangular belt (202), and the air outlet of the delivery pipe 2 (205) is located on the inner side of the rectangular belt (202); the box body (1) is fixedly connected to a sprayer (206) for spraying water onto the outer upper side of the rectangular belt (202), and a pump is provided in the sprayer (206); the box body (1) is fixedly connected to a water pipe (207), and the water pipe (207) is connected to the sprayer (206); the box body (1) is fixedly connected to a scraping assembly, and the scraping assembly is in contact with the rectangular belt (202).

2. An outdoor electrical equipment box according to claim 1, characterized in that: The exhaust pipe (4) is arranged in an L-shape, and the air outlet of the exhaust pipe (4) is downwardly oriented.

3. An outdoor electrical equipment box according to claim 2, characterized in that: The inner bottom of the upper mounting cavity (2b) is arranged in an inclined state with the lowest point located at the connection point between the upper mounting cavity (2b) and the rectangular through hole 1 (2c).

4. An outdoor electrical equipment box according to claim 1, characterized in that: The scraping assembly comprises a rectangular tube (208) and a scraper (209); the box body (1) is fixedly connected to the rectangular tube (208); the rectangular tube (208) is fixedly connected to the scraper (209) for scraping sand and dust on the rectangular belt (202), and the scraper (209) is in contact with the rectangular belt (202).

5. An outdoor electrical equipment box according to claim 4, characterized in that: The scraper (209) is provided with two blocking portions (209a).

6. An outdoor electrical equipment box according to claim 4, characterized in that: The box body (1) further comprises a mounting plate (301), a motor (302), a mounting rod (303) and a clapper (304); the front and rear sides of the box body (1) are both connected to a mounting plate (301); the rear mounting plate (301) is fixedly connected to a plurality of motors (302); the front mounting plate (301) is fixedly connected to another plurality of motors (302); the rotating part of each motor (302) is fixedly connected to a mounting rod (303); and each mounting rod (303) is fixedly connected to a plurality of clappers (304) for intercepting and clapping air.

7. An outdoor electrical equipment box according to claim 6, characterized in that: The box body (1) further comprises an electric push rod (401), a circular mounting frame (402), a limiting plate (403), a blocking plate (404) and a spring telescopic rod (405); a plurality of electric push rods (401) are fixedly connected to the front and rear sides of the box body (1), and the telescopic portion of each electric push rod (401) is fixedly connected to the corresponding mounting plate (301), and each mounting plate (301) is connected to the box body (1) through the corresponding electric push rod (401); each mounting rod (303) is rotatably and slidably connected to a circular mounting frame (402), and each circular mounting frame (405) is ... 02) are rotatably connected to the box body (1); each annular mounting frame (402) is fixedly connected to a plurality of limiting plates (403); each clapper (304) is slidably connected to a blocking plate (404) for limiting air flow; each blocking plate (404) is provided with an inclined portion, and the inclined portion on each blocking plate (404) is in contact with the corresponding limiting plate (403); each clapper (304) is fixedly connected to a plurality of spring telescopic rods (405), and the telescopic portion of each spring telescopic rod (405) is fixedly connected to the corresponding blocking plate (404).

8. An outdoor electrical equipment box according to claim 7, characterized in that: It also includes an electric heating plate (501); the box body (1) is fixedly connected with a plurality of electric heating plates (501).

9. An outdoor electrical equipment box according to claim 8, characterized in that: It also includes an electric refrigeration pipe (502); the box body (1) is fixedly connected with the electric refrigeration pipe (502).

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