A dual power supply control cabinet

Abstract

The present invention relates to the field of dehumidification technology of power distribution cabinets, and specifically discloses a dual power control cabinet, including a cabinet body, an air inlet arranged on the cabinet body, and a dehumidification box arranged at the air inlet, wherein a storage chamber, a middle chamber, and a discharge chamber are sequentially formed inside the dehumidification box from top to bottom, a feed port is provided between the storage chamber and the middle chamber, a discharge port is provided between the middle chamber and the discharge chamber, a movable grille parallel to the air inlet is provided in the middle chamber, an upper movable plate located above the movable grille for opening or closing the feed port, a lower movable plate located below the movable grille for opening or closing the discharge port, a first linear drive mechanism connecting the movable grille, a second linear drive mechanism connecting the upper movable plate and the lower movable plate, and a filling chamber for filling a desiccant is formed between the movable grille, the upper movable plate, the air inlet, and the lower movable plate. The dual power control cabinet can adapt to different environmental humidity for dehumidification.

Description

Technical Field

[0001] The invention relates to the technical field of dehumidification of power distribution cabinets, and in particular to a dual-power supply control cabinet. Background Art

[0002] With the rapid development of industrial automation and informatization, the stability and reliability of power systems have become particularly important. The dual power control cabinet is one of the key equipment in the power system, which can automatically switch between the normal power supply and the backup power supply to ensure the reliability and continuity of power supply. The internal electronic components and circuit boards of the dual power control cabinet are very sensitive to environmental humidity. Excessive humidity can cause problems such as short circuit, corrosion, and reduced insulation performance of electrical equipment, thereby affecting the stability and service life of the equipment. Therefore, effective dehumidification of the dual power control cabinet is the key to ensuring the safe operation of the power system.

[0003] A Chinese patent document with authorization announcement number CN220042630U discloses a dehumidification device for a distribution cabinet. The dehumidification device for the distribution cabinet can convert the moist cold air from the outside into dry cold air and then enter the interior of the distribution cabinet by setting a drying box at the position of the air inlet on the inner wall of the distribution cabinet. The dry cold air is then discharged through an exhaust fan, and the reciprocating cycle is repeated to achieve the purpose of dehumidification and cooling. The air inlet is located below the two side walls of the distribution cabinet. The dry cold air moves upward from the bottom of the distribution cabinet, and the moist air is discharged from the exhaust port on the top of the distribution cabinet. This arrangement can fully dehumidify and cool the interior of the distribution cabinet.

[0004] However, during operation, the dehumidification device of the above-mentioned distribution cabinet in the prior art may not be able to adapt to different humidity environments because the thickness of the desiccant in the drying box is fixed. In a high humidity environment, the desiccant may quickly reach saturation and cannot continue to absorb excess moisture, resulting in a decrease in the dehumidification effect. In a low humidity environment, the desiccant may over-dehumidify, resulting in a waste of resources. Summary of the invention

[0005] The present invention provides a dual-power control cabinet, aiming to solve the problem that a dehumidification device of a power distribution cabinet in the related art has poor adaptability to different humidity environments.

[0006] The present invention provides a dual power supply control cabinet adopting the following technical solution:

[0007] A dual power supply control cabinet comprises a cabinet body, an air inlet arranged on the cabinet body, and a dehumidification box arranged at the air inlet, wherein a storage chamber, a middle chamber and a discharge chamber are sequentially formed inside the dehumidification box from top to bottom, a feed port is provided between the storage chamber and the middle chamber, a discharge port is provided between the middle chamber and the discharge chamber, a movable grille parallel to the air inlet is provided in the middle chamber, an upper movable plate located above the movable grille for opening or closing the feed port, a lower movable plate located below the movable grille for opening or closing the discharge port, a first linear drive mechanism connecting the movable grille, and a second linear drive mechanism connecting the upper movable plate and the lower movable plate, a filling chamber for filling a desiccant is formed between the movable grille, the upper movable plate, the air inlet and the lower movable plate; the first linear drive mechanism is used to drive the movable grille to approach or move away from the air inlet to adjust the thickness of the filling chamber, and the second linear drive mechanism is used to drive the upper movable plate and the lower movable plate to approach or move away from the air inlet to open or close the feed port and the discharge port, and fill and discharge the desiccant in the filling chamber.

[0008] By adopting the above technical solution, a storage chamber, a middle chamber and a discharge chamber are arranged inside the dehumidification box, and a filling chamber with adjustable thickness is formed in the middle chamber by means of a movable grille, an upper movable plate, an air inlet and a lower movable plate. The second linear drive mechanism can drive the upper movable plate and the lower movable plate to open or close the feed port and the discharge port, so as to fill and discharge the desiccant in the filling chamber. The first linear drive mechanism can adjust the thickness of the filling chamber according to the dehumidification demand, thereby adjusting the thickness of the desiccant. In this way, the thickness of the desiccant can be reasonably adjusted according to the real-time humidity data to avoid excessive use, more accurately control the humidity in the cabinet, improve the dehumidification efficiency, and avoid damage to the equipment due to excessive or low humidity; it can also adapt to different environmental humidity, whether in the humid rainy season or the dry season, it can keep the humidity in the cabinet stable, so that the equipment has better adaptability.

[0009] Furthermore, a regeneration device for drying the desiccant in the discharge chamber is provided in the discharge chamber, and a circulation chamber connected between the storage chamber and the discharge chamber is also formed inside the dehumidification box. A conveying mechanism for conveying the desiccant dried by the regeneration device to the storage chamber is provided in the circulation chamber.

[0010] By adopting the above technical solution, the regeneration and recycling of the desiccant in the dehumidification box can be realized, which can reduce the replacement frequency of the desiccant, reduce energy consumption and operating costs, and achieve a more long-term and effective dehumidification effect.

[0011] Furthermore, the second linear drive mechanism includes a second motor installed in the middle cavity, an upper gear connected to the output end of the second motor, a lower gear meshing with the upper gear, an upper rack fixed on the upper movable plate, a lower rack fixed on the lower movable plate, an upper return spring connected between the upper movable plate and the dehumidification box, and a lower return spring connected between the lower movable plate and the dehumidification box. An upper incomplete gear tooth portion is also distributed on the outer peripheral side of the upper gear, and a lower incomplete gear tooth portion is also distributed on the outer peripheral side of the lower gear. The upper incomplete gear tooth portion can mesh with the upper rack, and the lower incomplete gear tooth portion can mesh with the lower rack.

[0012] Furthermore, a rotating drive mechanism connecting the movable grille and the air inlet is also provided in the middle cavity, and the rotating drive mechanism includes a rotating frame, an upper side frame, a lower side frame, a top filter plate, a bottom filter plate, and a third motor. The rotating frame includes a connecting rod connected between the movable grille and the air inlet, and a rotating shaft fixed on the connecting rod. The end of the connecting rod close to the air inlet is fixedly connected to the air inlet, and the upper side frame and the lower side frame are respectively located at the upper and lower ends of the side of the movable grille away from the filling chamber, and are elastically connected to the rotating frame, the top filter plate is movably installed between the upper side frame and the air inlet, and the bottom filter plate is movably installed between the lower side frame and the air inlet, and the output end of the third motor is connected to the rotating shaft to drive the rotating frame to drive the movable grille and the air inlet to rotate around the rotating shaft.

[0013] With the above technical solution, the third motor can drive the rotating frame to drive the movable grille and the air inlet to rotate around the rotating shaft, so that the part of the top filter plate between the movable grille and the air inlet is exposed outside the cabinet, and the bottom filter plate is separated from the lower movable plate. The external air can enter the filling cavity through the top filter plate and flow along the height direction of the filling cavity, and then enter the cabinet through the bottom filter plate after being dried by the desiccant in the filling cavity. In this way, the drying time of the external air is fully extended, the dehumidification effect is improved, and it is suitable for the season with the highest humidity or areas with high humidity.

[0014] Furthermore, the first linear drive mechanism includes a first motor mounted on a rotating frame, a screw connected to an output end of the first motor, and the movable grid is provided with a threaded hole and is threadedly connected to the screw.

[0015] Furthermore, a first spring is provided between the upper side frame and the rotating frame to apply elastic force to the upper side frame to make the upper side frame move downward, and a second spring is provided between the lower side frame and the rotating frame to apply elastic force to the lower side frame to make the lower side frame move upward, and the upper side frame and the lower side frame respectively have upper and lower inclined surfaces opposite to each other to form a trapezoidal slot, and the movable grille has a trapezoidal plug block that can be inserted into the trapezoidal slot to push the upper side frame and the lower side frame away from each other; the top filter plate has a top slot with an opening facing downward, the upper side frame has an upper plug block that can be inserted into the top slot, the bottom filter plate has a bottom slot with an opening facing upward, and the lower side frame has a lower plug block that can be inserted into the bottom slot.

[0016] By adopting the above technical solution, when the trapezoidal plug block is inserted into the trapezoidal slot to push the upper side frame and the lower side frame away from each other, the upper plug block is inserted into the top slot and the lower plug block is inserted into the bottom slot, so that the upper side frame and the lower side frame can drive the top filter plate and the bottom filter plate to rotate synchronously.

[0017] Furthermore, the upper movable plate has an arc-shaped groove, and the top filter plate has an arc-shaped portion movably assembled in the arc-shaped groove.

[0018] By adopting the above technical solution, the top filter plate can move away from or close to the air inlet along with the upper movable plate, without affecting the opening and closing of the feed port.

[0019] Furthermore, one end of the lower movable plate close to the movable grille has an arc-shaped surface, and one end of the lower movable plate close to the air inlet has a push block for pushing the bottom filter plate to move.

[0020] By adopting the above technical solution, the bottom filter plate can move away from or close to the air inlet along with the lower movable plate, without affecting the opening and closing of the discharge port.

[0021] Furthermore, the movable grille has a plurality of first grid openings arranged at intervals in the horizontal direction, a blocking grille is movably installed in the movable grille, the blocking grille has a second grid opening corresponding to the first grid opening, a grille spring is arranged between the blocking grille and the movable grille to apply elastic force to the blocking grille so that the blocking grille moves to the second grid opening corresponding to the first grid opening, and a wedge block for pushing the blocking grille is fixed on the lower side frame so that when the blocking grille approaches the lower side frame, the wedge block can push the blocking grille to move to the second grid opening and be misaligned with the first grid opening.

[0022] Furthermore, the air inlet has a plurality of fixed openings arranged at intervals in the vertical direction, and an opening and closing plate is installed on the side of the air inlet facing away from the filling chamber so as to move up and down, and the opening and closing plate has a movable opening corresponding to the fixed opening, and an opening and closing spring is arranged between the opening and closing plate and the air inlet to apply an elastic force to the opening and closing plate so that the opening and closing plate moves until the movable opening corresponds to the fixed opening, and a guide block is fixed to the lower part of the opening and closing plate, and the lower movable plate has a guide surface for guiding the movement of the guide block, and the guide surface includes a guide inclined surface arranged close to the direction of the air inlet and a guide arc surface arranged close to the direction of the movable grille.

[0023] The beneficial effects of a dual power supply control cabinet provided by the present invention are as follows: a storage chamber, a middle chamber and a discharge chamber are arranged inside the dehumidification box, and a filling chamber with adjustable thickness is formed in the middle chamber by a movable grille, an upper movable plate, an air inlet and a lower movable plate. The second linear drive mechanism can drive the upper movable plate and the lower movable plate to open or close the feed port and the discharge port, so as to fill and discharge the desiccant in the filling chamber. The first linear drive mechanism can adjust the thickness of the filling chamber according to the dehumidification demand, thereby adjusting the thickness of the desiccant. In this way, the thickness of the desiccant can be reasonably adjusted according to the real-time humidity data to avoid excessive use, more accurately control the humidity in the cabinet, improve the dehumidification efficiency, and avoid damage to the equipment due to excessive or low humidity; it can also adapt to different environmental humidity, whether in the humid rainy season or the dry season, it can keep the humidity in the cabinet stable, so that the equipment has better adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the external structure of the dual power supply control cabinet of the present invention.

[0025] Figure 2 It is a first structural schematic diagram of the dehumidification box of the dual power supply control cabinet of the present invention.

[0026] Figure 3 It is a second structural schematic diagram of the dehumidification box of the dual power supply control cabinet of the present invention.

[0027] Figure 4 It is a first structural schematic diagram of the middle cavity of the dual power supply control cabinet of the present invention.

[0028] Figure 5 It is a second structural schematic diagram of the middle cavity of the dual power supply control cabinet of the present invention.

[0029] Figure 6 It is a structural schematic diagram of a top filter plate and an upper movable plate of a dual power supply control cabinet of the present invention.

[0030] Figure 7 It is a structural schematic diagram of a bottom filter plate and a lower moving plate of a dual power supply control cabinet of the present invention.

[0031] Figure 8 It is a structural schematic diagram of the guide block and the guide surface of the dual power supply control cabinet of the present invention.

[0032] Reference numerals:

[0033] 10, cabinet; 20, air inlet; 210, fixed opening; 220, opening and closing plate; 222, guide block; 30, dehumidification box; 310, storage cavity; 311, guide plate; 320, middle cavity; 330, discharge cavity; 340, first partition plate; 341, feed port; 350, second partition plate; 351, discharge port; 352, third partition plate; 360, filling cavity; 370, circulation cavity; 371, conveying mechanism; 380, baffle; 390, fan; 40, movable grille; 410, trapezoidal plug block; 420, first grid; 430, blocking grille; 440, filter; 50, upper movable plate; 60, lower movable plate; 610, curved surface; 6 20. Push block; 630. Guide slope; 640. Guide arc surface; 70. First motor; 80. Second motor; 810. Upper gear; 811. Upper incomplete gear tooth portion; 820. Lower gear; 821. Lower incomplete gear tooth portion; 830. Upper rack; 840. Lower rack; 850. Upper return spring; 860. Lower return spring; 90. Third motor; 910. Rotating frame; 911. Connecting rod; 912. Rotating shaft; 920. Upper side frame; 921. First spring; 922. Upper insert block; 930. Lower side frame; 931. Second spring; 932. Lower insert block; 933. Wedge block; 940. Top filter plate; 941. Arc portion; 950. Bottom filter plate. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0035] like Figures 1 to 8 As shown, an embodiment of the dual power control cabinet of the present invention includes a cabinet body 10, an air inlet 20, an air outlet, a humidity sensor, a dehumidification box 30, a baffle 380, a movable grille 40, an upper movable plate 50, a lower movable plate 60, a first linear drive mechanism, a second linear drive mechanism and a rotation drive mechanism.

[0036] like Figure 1 As shown, the air inlet 20 is arranged at the bottom of the cabinet 10, for introducing external air into the cabinet 10. The air outlet is arranged at the top of the cabinet 10, for exhausting the air in the cabinet 10. The humidity sensor is arranged in the cabinet 10, for detecting the humidity in the cabinet 10.

[0037] like Figure 2 and Figure 3 As shown, the dehumidification box 30 is arranged at the air inlet 20, and is used to reduce the humidity of the incoming air and reduce the moisture inside the control cabinet. A first partition plate 340, a second partition plate 350 and a third partition plate 352 are fixed inside the dehumidification box 30. The first partition plate 340, the second partition plate 350 and the third partition plate 352 divide the interior of the dehumidification box 30 into a storage chamber 310, a middle chamber 320, a discharge chamber 330 and a circulation chamber 370. The storage chamber 310, the middle chamber 320 and the discharge chamber 330 are distributed from top to bottom in sequence. The circulation chamber 370 is located on one side of the middle chamber 320 and is connected between the storage chamber 310 and the discharge chamber 330. A feed port 341 is provided at one end of the first partition plate 340 close to the air inlet 20, and a discharge port 351 is provided at one end of the second partition plate 350 close to the air inlet 20.

[0038] like Figure 3 and Figure 6 As shown, a movable grille 40, a filter screen 440, an upper movable plate 50, a lower movable plate 60, a fan 390, a first linear drive mechanism, a second linear drive mechanism and a rotation drive mechanism are arranged in the middle cavity 320. The movable grille 40 is parallel to the air inlet 20; the upper movable plate 50 is located above the movable grille 40 and is used to open or close the feed port 341; the lower movable plate 60 is located below the movable grille 40 and is used to open or close the discharge port 351. A filling cavity 360 for filling desiccant is formed between the movable grille 40, the upper movable plate 50, the air inlet 20 and the lower movable plate 60. The filter screen 440 is fixed to a side of the movable grille 40 close to the filling cavity 360 to prevent the desiccant from passing through the movable grille 40. In other embodiments, a filter screen 440 may also be arranged on a side of the air inlet 20 close to the filling cavity 360 to prevent the desiccant from passing through the air inlet 20. The fan 390 is located on a side of the movable grille 40 facing away from the filling chamber 360 to increase the air flow rate entering the cabinet 10 .

[0039] like Figures 3 to 5 As shown, the second linear drive mechanism in the embodiment is a gear rack mechanism, which includes a second motor 80 installed in the middle cavity 320, an upper gear 810 connected to the output end of the second motor 80, a lower gear 820 meshing with the upper gear 810, an upper rack 830 fixed on the upper moving plate 50, a lower rack 840 fixed on the lower moving plate 60, an upper return spring 850 connected between the upper moving plate 50 and the dehumidification box 30, and a lower return spring 860 connected between the lower moving plate 60 and the dehumidification box 30. An upper incomplete gear tooth portion 811 is also distributed on the outer peripheral side of the upper gear 810, and a lower incomplete gear tooth portion 821 is also distributed on the outer peripheral side of the lower gear 820, and the upper incomplete gear tooth portion 811 can mesh with the upper rack 830, and the lower incomplete gear tooth portion 821 can mesh with the lower rack 840.

[0040] Thus, when the second motor 80 drives the upper gear 810 to rotate, the upper gear 810 drives the lower gear 820 to rotate in the opposite direction through meshing. During the continuous rotation of the two gears, the lower incomplete gear portion 821 first meshes with the lower rack 840 to drive the lower movable plate 60 to move away from the air inlet 20, thereby opening the discharge port 351 and discharging the saturated desiccant in the filling chamber 360. The saturated desiccant in the filling chamber 360 falls into the discharge chamber 330 through the discharge port 351. After the lower incomplete gear portion 821 is disengaged from the lower rack 840, driven by the elastic force of the lower return spring 860, the lower movable plate 60 moves toward the air inlet 20, thereby closing the discharge port 351. When the lower incomplete gear portion 821 is disengaged from the lower rack 840, the upper incomplete gear portion 811 is meshed with the upper rack 830 to drive the upper movable plate 50 to move away from the air inlet 20, thereby opening the feed port 341, and the desiccant in the storage chamber 310 falls into the filling chamber 360 through the feed port 341. Subsequently, the upper incomplete gear portion 811 is disengaged from the upper rack 830, and driven by the elastic force of the upper return spring 850, the upper movable plate 50 moves toward the air inlet 20, thereby closing the feed port 341, and completing the discharge and filling of the desiccant in the filling chamber 360. Furthermore, in other embodiments, the second linear drive mechanism can also be a mechanism such as a hydraulic or pneumatic drive mechanism that can realize the movement of the two movable plates.

[0041] like Figures 3 to 7 As shown, the rotation driving mechanism includes a rotating frame 910 , an upper side frame 920 , a lower side frame 930 , a top filter plate 940 , a bottom filter plate 950 and a third motor 90 .

[0042] The rotating frame 910 includes a connecting rod 911 connected between the movable grille 40 and the air inlet 20, and a rotating shaft 912 fixed on the connecting rod 911. One end of the connecting rod 911 close to the air inlet 20 is fixedly connected to the air inlet 20. The upper side frame 920 and the lower side frame 930 are respectively located at the upper and lower ends of the movable grille 40 away from the filling chamber 360. A first spring 921 is provided between the upper side frame 920 and the connecting rod 911 to apply elastic force to the upper side frame 920 to move the upper side frame 920 downward; a second spring 931 is provided between the lower side frame 930 and the connecting rod 911 to apply elastic force to the lower side frame 930 to move the lower side frame 930 upward. The upper side frame 920 and the lower side frame 930 respectively have upper and lower opposite inclined surfaces to form a trapezoidal slot. The movable grille 40 has a trapezoidal insert block 410 that can be inserted into the trapezoidal slot to push the upper side frame 920 and the lower side frame 930 away from each other.

[0043] The upper movable plate 50 has an arc-shaped groove, and the top filter plate 940 has an arc-shaped portion 941 that is movably assembled in the arc-shaped groove, so that the top filter plate 940 can move away from or close to the air inlet 20 with the upper movable plate 50, without affecting the opening and closing of the feed port 341. When the top filter plate 940 moves with the upper movable plate 50 to approach the air inlet 20, one end of the top filter plate 940 close to the air inlet 20 abuts against the air inlet 20. At this time, when the top filter plate 940 continues to move toward the air inlet 20, since the arc-shaped portion 941 can slide in the arc-shaped groove, the top filter plate 940 can move relative to the upper movable plate 50.

[0044] The bottom filter plate 950 is placed on the upper surface of the lower movable plate 60. The end of the lower movable plate 60 close to the movable grille 40 has an arc surface 610. The end of the lower movable plate 60 close to the air inlet 20 has a push block 620 for pushing the bottom filter plate 950 to move, so that the bottom filter plate 950 can move away from or close to the air inlet 20 with the lower movable plate 60 without affecting the opening and closing of the discharge port 351.

[0045] The top filter plate 940 has a top slot opening downward, the upper side frame 920 has an upper insert block 922 that can be inserted into the top slot, the bottom filter plate 950 has a bottom slot opening upward, and the lower side frame 930 has a lower insert block 932 that can be inserted into the bottom slot. When the mobile grille 40 approaches the upper side frame 920 and the lower side frame 930, the trapezoidal insert block 410 can be inserted into the trapezoidal slot and push the upper side frame 920 and the lower side frame 930 away from each other. At this time, the upper insert block 922 is inserted into the top slot, and the lower insert block 932 is inserted into the bottom slot, so that the upper side frame 920 and the lower side frame 930 can drive the top filter plate 940 and the bottom filter plate 950 to rotate synchronously.

[0046] The baffle 380 is fixed to the outside of the cabinet 10 and is arc-shaped for blocking airflow. The output end of the third motor 90 is connected to the rotating shaft 912 to drive the rotating frame 910 to drive the movable grille 40 and the air inlet 20 to rotate around the rotating shaft 912, so that the part of the top filter plate 940 located between the movable grille 40 and the air inlet 20 is exposed outside the cabinet 10, and the bottom filter plate 950 is separated from the lower movable plate 60. The external air can enter the filling chamber 360 through the top filter plate 940 and flow along the height direction of the filling chamber 360. It is dried by the desiccant in the filling chamber 360 and then enters the cabinet 10 through the bottom filter plate 950. In this way, the drying time of the external air is fully extended, the dehumidification effect is improved, and it is suitable for the season with the highest humidity or areas with high humidity.

[0047] like Figure 4As shown, the first linear drive mechanism includes a first motor 70 mounted on a rotating frame 910, a screw connected to the output end of the first motor 70, and a threaded hole is provided in the movable grille 40, which is threadedly connected to the screw. Therefore, when the first motor 70 drives the screw to rotate, the screw drives the movable grille 40 to approach or move away from the air inlet 20 through a spiral transmission, so as to adjust the thickness of the filling cavity 360 according to the humidity detected by the humidity sensor, thereby adjusting the thickness of the desiccant. In this way, the thickness of the desiccant can be reasonably adjusted according to the real-time data of the humidity sensor, to avoid excessive use, to more accurately control the humidity in the cabinet 10, to improve the dehumidification efficiency, to avoid damage to the equipment due to excessively high or low humidity, and to adapt to different environmental humidity. Whether in a humid rainy season or a dry season, the humidity in the cabinet 10 can be kept stable, so that the equipment has better adaptability.

[0048] like Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, the movable grille 40 has a plurality of first grid openings 420 arranged at intervals in the horizontal direction. A blocking grille 430 is movably mounted in the movable grille 40, and the blocking grille 430 has a second grid opening that can correspond to the first grid opening 420. A grille spring is arranged between the blocking grille 430 and the movable grille 40 to apply elastic force to the blocking grille 430 so that the blocking grille 430 moves to the second grid opening corresponding to the first grid opening 420, so that the airflow can pass through the movable grille 40. A wedge block 933 for pushing the blocking grille 430 is fixed on the lower side frame 930, so that when the movable grille 40 drives the blocking grille 430 to approach the lower side frame 930, the wedge block 933 can push the blocking grille 430 to move to the second grid opening and be displaced from the first grid opening 420, thereby blocking the movable grille 40. In this way, after the rotating driving mechanism drives the movable grille 40 and the air inlet 20 to rotate, the airflow cannot pass through the movable grille 40.

[0049] The air inlet 20 has a plurality of fixed openings 210 arranged at intervals in the vertical direction. An opening and closing plate 220 is mounted on the side of the air inlet 20 that is away from the filling chamber 360 and moves up and down. The opening and closing plate 220 has a movable opening that can correspond to the fixed opening 210. An opening and closing spring is arranged between the opening and closing plate 220 and the air inlet 20 to apply elastic force to the opening and closing plate 220 so that the opening and closing plate 220 moves to the movable opening corresponding to the fixed opening 210, so that the air flow can pass through the air inlet 20. A guide block 222 is fixed to the lower part of the opening and closing plate 220, and the lower movable plate 60 has a guide surface for guiding the movement of the guide block 222, and the guide surface includes a guide inclined surface 630 arranged in the direction close to the air inlet 20 and a guide arc surface 640 arranged in the direction close to the movable grille 40. When the air inlet 20 drives the opening and closing plate 220 to rotate around the rotating shaft 912, the guide block 222 can enter the guide arc surface 640 along the guide inclined surface 630, so that the opening and closing plate 220 moves up to the movable opening and is misaligned with the fixed opening 210, thereby blocking the air inlet 20, so that after the rotating drive mechanism drives the movable grille 40 and the air inlet 20 to rotate, the air flow cannot pass through the air inlet 20.

[0050] like Figure 2 As shown, a regeneration device for drying the desiccant in the discharge chamber 330 is provided in the discharge chamber 330. The regeneration device in the embodiment includes an electric heating wire. A conveying mechanism 371 for conveying the desiccant dried by the regeneration device to the storage chamber 310 is provided in the circulation chamber 370, and the conveying mechanism 371 in the embodiment is a U-shaped conveyor belt. A guide plate 311 for guiding the movement of the desiccant is provided in the storage chamber 310. In this way, the regeneration and recycling of the desiccant in the dehumidification box 30 are realized, which can reduce the replacement frequency of the desiccant, reduce energy consumption and operating costs, and achieve a more long-term and effective dehumidification effect.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A dual power supply control cabinet, comprising a cabinet body, an air inlet arranged on the cabinet body, and a dehumidification box arranged at the air inlet, characterized in that: The dehumidification box is provided with a storage chamber, a middle chamber and a discharge chamber from top to bottom, a feed port is provided between the storage chamber and the middle chamber, a discharge port is provided between the middle chamber and the discharge chamber, a movable grille parallel to the air inlet is provided in the middle chamber, an upper movable plate located above the movable grille for opening or closing the feed port, a lower movable plate located below the movable grille for opening or closing the discharge port, a first linear drive mechanism connecting the movable grille, and a second linear drive mechanism connecting the upper movable plate and the lower movable plate, and a filling chamber for filling a desiccant is formed between the movable grille, the upper movable plate, the air inlet and the lower movable plate; The first linear drive mechanism is used to drive the movable grille to approach or move away from the air inlet to adjust the thickness of the filling cavity, and the second linear drive mechanism is used to drive the upper movable plate and the lower movable plate to approach or move away from the air inlet to open or close the feed port and the discharge port to fill and discharge the desiccant in the filling cavity; The middle cavity is also provided with a rotating drive mechanism connecting the movable grille and the air inlet, the rotating drive mechanism comprises a rotating frame, an upper side frame, a lower side frame, a top filter plate, a bottom filter plate, and a third motor, the rotating frame comprises a connecting rod connected between the movable grille and the air inlet, and a rotating shaft fixed on the connecting rod, the connecting rod has an end close to the air inlet and is fixedly connected to the air inlet, the upper side frame and the lower side frame are respectively located at the upper and lower ends of the side of the movable grille away from the filling cavity, and are elastically connected to the rotating frame, the top filter plate is movably installed between the upper side frame and the air inlet, the bottom filter plate is movably installed between the lower side frame and the air inlet, and the output end of the third motor is connected to the rotating shaft to drive the rotating frame to drive the movable grille and the air inlet to rotate around the rotating shaft.

2. A dual power supply control cabinet according to claim 1, characterized in that: The discharge chamber is provided with a regeneration device for drying the desiccant in the discharge chamber, and the dehumidification box is also provided with a circulation chamber connected between the storage chamber and the discharge chamber. The circulation chamber is provided with a conveying mechanism for conveying the desiccant dried by the regeneration device to the storage chamber.

3. A dual power supply control cabinet according to claim 1, characterized in that: The second linear drive mechanism includes a second motor installed in the middle cavity, an upper gear connected to the output end of the second motor, a lower gear meshing with the upper gear, an upper rack fixed on the upper movable plate, a lower rack fixed on the lower movable plate, an upper return spring connected between the upper movable plate and the dehumidification box, and a lower return spring connected between the lower movable plate and the dehumidification box. An upper incomplete gear tooth portion is also distributed on the outer peripheral side of the upper gear, and a lower incomplete gear tooth portion is also distributed on the outer peripheral side of the lower gear. The upper incomplete gear tooth portion can mesh with the upper rack, and the lower incomplete gear tooth portion can mesh with the lower rack.

4. A dual power supply control cabinet according to claim 1, characterized in that: The first linear drive mechanism comprises a first motor mounted on a rotating frame and a screw connected to an output end of the first motor. The movable grid is provided with a threaded hole and is threadedly connected to the screw.

5. A dual power supply control cabinet according to claim 1, characterized in that: A first spring is arranged between the upper side frame and the rotating frame to apply elastic force to the upper side frame to make the upper side frame move downward, and a second spring is arranged between the lower side frame and the rotating frame to apply elastic force to the lower side frame to make the lower side frame move upward. The upper side frame and the lower side frame respectively have upper and lower inclined surfaces opposite to each other to form a trapezoidal slot, and the movable grille has a trapezoidal plug block that can be inserted into the trapezoidal slot to push the upper side frame and the lower side frame away from each other; the top filter plate has a top slot with an opening facing downward, the upper side frame has an upper plug block that can be inserted into the top slot, the bottom filter plate has a bottom slot with an opening facing upward, and the lower side frame has a lower plug block that can be inserted into the bottom slot.

6. A dual power supply control cabinet according to claim 1, characterized in that: The upper movable plate has an arc-shaped groove, and the top filter plate has an arc-shaped portion movably assembled in the arc-shaped groove.

7. A dual power supply control cabinet according to claim 1, characterized in that: One end of the lower movable plate close to the movable grille has an arc-shaped surface, and one end of the lower movable plate close to the air inlet has a push block for pushing the bottom filter plate to move.

8. A dual power supply control cabinet according to claim 1, characterized in that: The movable grille has a plurality of first grid openings arranged at intervals in the horizontal direction, a blocking grille is movably mounted inside the movable grille, the blocking grille has a second grid opening corresponding to the first grid opening, a grille spring is arranged between the blocking grille and the movable grille to apply elastic force to the blocking grille so that the blocking grille moves to the second grid opening corresponding to the first grid opening, and a wedge block for pushing the blocking grille is fixed on the lower side frame so that when the blocking grille approaches the lower side frame, the wedge block can push the blocking grille to move to the second grid opening and be misaligned with the first grid opening.

9. A dual power supply control cabinet according to claim 1, characterized in that: The air inlet has a plurality of fixed openings arranged at intervals in the vertical direction, and an opening and closing plate is installed on the side of the air inlet facing away from the filling chamber for moving up and down, and the opening and closing plate has a movable opening that can correspond to the fixed opening, and an opening and closing spring is arranged between the opening and closing plate and the air inlet to apply an elastic force to the opening and closing plate so that the opening and closing plate moves to the movable opening corresponding to the fixed opening, and a guide block is fixed to the lower part of the opening and closing plate, and the lower movable plate has a guide surface for guiding the movement of the guide block, and the guide surface includes a guide inclined surface arranged near the direction of the air inlet and a guide arc surface arranged near the direction of the movable grille.

Images