Outdoor power distribution cabinet with dehumidification and heat dissipation device

Abstract

The application provides an outdoor power distribution cabinet with a dehumidifying and heat dissipating device, which comprises a main cabinet body, a secondary cabinet body, a dehumidifying assembly and a quick replacement assembly. The dehumidifying assembly comprises an outer dehumidifying sheet, a first inner dehumidifying sheet and a second inner dehumidifying sheet. One end of the outer dehumidifying sheet is provided with a rotating shaft, and the other end is provided with a connecting piece. A coil spring is arranged outside the main cabinet body, and the coil spring can drive the rotating shaft to rotate. One side of the main cabinet body is provided with a mounting sheet, and the connecting piece can be matched with the mounting sheet. In the matched state of the connecting piece and the mounting sheet, the outer dehumidifying sheet and the first inner dehumidifying sheet are in contact. The quick replacement assembly has a working state and a quick replacement state. The secondary cabinet body is movably arranged on one side of the main cabinet body, and moves towards a direction away from the main cabinet body. The quick replacement assembly is switched from the working state to the quick replacement state. The power distribution cabinet provided by the application can quickly remove the connecting piece to make the outer dehumidifying sheet be rolled and taken out, so that the quick replacement of the dehumidifying assembly is realized, and the dehumidifying capacity is maintained.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, and more particularly to an outdoor power distribution cabinet with a dehumidification and heat dissipation device. Background Technology

[0002] Distribution cabinets are indispensable and crucial equipment in power systems, widely used in various power distribution and control scenarios. However, in outdoor environments, distribution cabinets often face the challenges of humidity and high temperatures. Humid environments can easily lead to moisture absorption, short circuits, and even safety accidents for internal components; while high temperatures can affect the performance and lifespan of electronic components within the distribution cabinet, reducing its operating efficiency.

[0003] In existing electrical distribution cabinets, ventilation openings are usually installed inside to improve heat dissipation, allowing for ventilation equipment or natural air circulation. However, in humid environments, these ventilation openings can easily become channels for moisture to enter, exacerbating the humidity problem inside the distribution cabinet.

[0004] To address the moisture problem, a relatively low-cost method is to lay large areas of moisture-absorbing material inside the distribution cabinet, especially on the lower part of each inner wall, where condensation can be effectively absorbed when it flows in. However, while this method alleviates the moisture problem to some extent, the moisture-absorbing material needs to be replaced regularly after absorbing moisture, otherwise it will lose its moisture-absorbing effect. Removing large areas of moisture-absorbing material is cumbersome, and the frequent manual opening of the cabinet door also poses a safety risk. To solve the above problems, this invention provides an outdoor distribution cabinet with a dehumidification and heat dissipation device. Summary of the Invention

[0005] Based on the above situation, the main objective of this invention is to provide an outdoor power distribution cabinet with a dehumidification and heat dissipation device to solve the problems of the existing power distribution cabinets having trouble removing large areas of moisture-absorbing material, requiring frequent manual opening of the cabinet door, and also causing safety risks.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An outdoor power distribution cabinet with a dehumidification and heat dissipation device includes a main cabinet, a secondary cabinet, a dehumidification component, and a quick-change component; The dehumidification assembly includes an external dehumidification plate, a first internal dehumidification plate, and a second internal dehumidification plate. The first and second internal dehumidification plates are located inside the main cabinet, while the external dehumidification plate is located outside the main cabinet. One end of the external dehumidification plate is provided with a rotating shaft, and the other end is provided with a connecting piece. A coil spring is provided outside the main cabinet, which can drive the rotating shaft to rotate. A mounting plate is provided on one side of the main cabinet. The connector can be fitted with the mounting plate. When the connector is fitted with the mounting plate, the outer dehumidifier and the first inner dehumidifier are in contact. The quick-change assembly has a working state and a quick-change state. The auxiliary cabinet is movably disposed on one side of the main cabinet. When the auxiliary cabinet moves away from the main cabinet, the quick-change assembly will switch from the working state to the quick-change state.

[0007] Preferably, the quick-change assembly includes a pressure plate, a telescopic rod, a limiting ring, a spring, and a square rod; The square rod and the sub-cabinet are fixed together, and the rack is fixedly connected to the square rod. The limiting ring is connected to one end of the square rod, the telescopic rod is located between the pressure plate and the limiting ring, the spring shown is sleeved on the telescopic rod, and the pressure plate can press against the mounting plate.

[0008] Preferably, the quick-change assembly further includes a gear, a rack, and a buffer sleeve; The gear is rotatably connected to the main cabinet body, the rack is fixed to the square rod, the gear and the rack mesh, one end of the buffer sleeve is fixed to the limiting ring, and the square rod passes through the buffer sleeve; One end of the gear is fixed with a connecting shaft, the end of the connecting shaft is fixed with a rocker arm, a torsion spring is sleeved on the connecting shaft, a groove is opened on the lower side of the buffer sleeve, and the limiting rod can be inserted into the groove from top to bottom.

[0009] Preferably, a positioning shaft is provided on one side of the main cabinet, the positioning shaft is fixed to the coil spring, and an inner hole is provided in the positioning shaft so that the rotating shaft can be inserted into the inner hole; Multiple insert rods are fixed to the end of the rotating shaft, and a positioning hole is provided in the inner hole, into which the insert rods can be inserted.

[0010] Preferably, a first positioning groove is provided in the middle of the rotating shaft, and a second positioning groove is provided in the middle of the positioning shaft, and the first positioning groove and the second positioning groove can communicate with each other; The quick-change assembly also includes a fixing frame, a buffer spring, and a positioning rod. When the quick-change assembly is in operation, the positioning rod can be inserted into the first positioning groove and the second positioning groove.

[0011] Preferably, it also includes an electronic heating component; The electronic heating component is located inside the secondary cabinet and can contact the external dehumidifier.

[0012] Preferably, the mounting plate has a through slot, into which the first inner dehumidifying plate can be inserted.

[0013] Preferably, the mounting plate has a strip groove and a slot on one side; The slot is located at the end of the strip groove. The connector includes a plate and a mating part. The external dehumidifier is fixed to one side of the plate. The plate and the mating part can be fixed in the strip groove and the slot, respectively.

[0014] Preferably, the main cabinet body is provided with an inner cavity and a ventilation cavity; The ventilation cavity is equipped with a heat dissipation unit, and the upper and lower vents are respectively provided on the upper and lower sides of the cavity.

[0015] Preferably, the secondary cabinet has a mounting cavity on the side closest to the main cabinet, and the electronic heating assembly is located in the mounting cavity. The beneficial effects of this invention are as follows: The power distribution cabinet provided in this application achieves efficient dehumidification and heat dissipation functions through a unique structural design. In terms of dehumidification, the use of internal and external dehumidifying sheets working in tandem not only improves dehumidification efficiency but also facilitates maintenance and replacement. The internal dehumidifying sheet absorbs condensate from the main cabinet and concentrates humidity through a larger first internal dehumidifying sheet for easy handling; the external dehumidifying sheet, through its tight connection with the first internal dehumidifying sheet, transfers humidity to the outside of the cabinet. Replacing the external dehumidifying sheet alone improves the overall dehumidification capacity. When replacing the external dehumidifying sheet, the quick-change assembly transitions to a quick-change state as the auxiliary cabinet moves. Operators can move the pressure plate with minimal force by twisting the limit rod to contact the pressure plate, allowing for quick removal of the connector and the outer dehumidifying sheet to be rolled up and removed, thus enabling rapid replacement of the dehumidification assembly and maintaining dehumidification capacity.

[0016] Other beneficial effects of the present invention will be explained in detail through the introduction of specific technical features and technical solutions in specific embodiments. Those skilled in the art should be able to understand the beneficial technical effects brought about by these technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an outdoor power distribution cabinet with a dehumidification and heat dissipation device according to the present invention.

[0018] Figure 2 This is a schematic diagram illustrating the structure of an outdoor power distribution cabinet with a dehumidification and heat dissipation device according to the present invention, showing the electronic heating component.

[0019] Figure 3 This is a cross-sectional view of an outdoor power distribution cabinet with a dehumidification and heat dissipation device according to the present invention, showing the external dehumidification plate.

[0020] Figure 4 This is a partial schematic diagram showing the mounting plate of an outdoor power distribution cabinet with a dehumidification and heat dissipation device according to the present invention.

[0021] Figure 5This is a partial schematic diagram showing the rotating shaft of an outdoor power distribution cabinet with a dehumidification and heat dissipation device according to the present invention.

[0022] Figure 6 This is a cross-sectional view of an outdoor power distribution cabinet with a dehumidification and heat dissipation device according to the present invention, showing the cooperative structure of the rotating shaft and the positioning shaft.

[0023] Figure 7 This is an enlarged schematic diagram of part A.

[0024] Figure 8 This is a schematic diagram illustrating the structure of an outdoor power distribution cabinet with a dehumidification and heat dissipation device according to the present invention, showing the rocker arm.

[0025] Figure 9 This is a schematic diagram of the structure of the fixing frame of an outdoor power distribution cabinet with a dehumidification and heat dissipation device according to the present invention.

[0026] Explanation of reference numerals in the attached figures: 1. Main cabinet body; 11. Inner cavity; 111. Upper vent; 112. Lower vent; 12. Ventilation cavity; 13. Mounting plate; 131. Through slot; 132. Card slot; 133. Strip groove; 14. Coil spring; 15. Positioning shaft; 151. Inner hole; 152. Positioning hole; 153. Second positioning groove; 2. Dehumidification assembly; 21. First inner dehumidification plate; 22. Second inner dehumidification plate; 23. Outer dehumidification plate; 231. Rotating shaft; 232. Insert rod; 233. First positioning groove; 24. Connector; 241. Plate; 242. Mating part; 3. Sub-cabinet; 31. Mounting cavity; 4. Electronic heating assembly; 5. Quick-change assembly; 51. Pressure plate; 52. Telescopic rod; 53. Limiting ring; 54. Spring; 55. Square rod; 56. Buffer sleeve; 561. Groove; 5611. Inclined surface; 57. Gear; 571. Connecting shaft; 5711. Rocker arm; 5712. Limiting rod; 58. Rack; 59. Fixing frame; 591. Buffer spring; 592. Positioning rod. Detailed Implementation

[0027] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail, but well-known methods, processes, procedures, and elements are not described in detail in order to avoid obscuring the essence of the present invention.

[0028] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0029] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than being exclusive or exhaustive; that is, meaning "including but not limited to."

[0030] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0031] Reference Figures 1-3 This invention provides an outdoor power distribution cabinet with a dehumidification and heat dissipation device, including a main cabinet 1, a dehumidification component 2, a secondary cabinet 3, an electronic heating component 4, and a quick-change component 5. The main cabinet 1 is used to install power distribution equipment and its interior needs to be dehumidified. The dehumidification component 2 is located on the main cabinet 1, and the secondary cabinet 3 is movably disposed on one side of the dehumidification component 2. The secondary cabinet 3 is used to install the electronic heating component 4, which can be close to the dehumidification component 2 to improve the dehumidification effect of the dehumidification component 2. The quick-change component 5 can replace part of the structure of the dehumidification component 2 to maintain the dehumidification capacity of the dehumidification component 2.

[0032] The main cabinet 1 has an inner cavity 11 and a ventilation cavity 12. The ventilation cavity 12 is located on the lower side of the inner cavity 11. The inner cavity 11 is used to install the distribution equipment, and the ventilation cavity 12 is equipped with a heat dissipation unit (not shown in the figure). Specifically, the heat dissipation unit can be a fan unit. The upper and lower sides of the inner cavity 11 are respectively provided with an upper ventilation port 111 and a lower ventilation port 112. The lower ventilation port 112 is a channel connecting the inner cavity 11 and the ventilation cavity 12, while the upper ventilation port 111 is used to realize the air exchange between the inner cavity 11 and the outside.

[0033] Inside the ventilation cavity 12, the cooling unit drives airflow during operation. Air entering from the lower vent 112 passes through the cooling unit, its temperature decreases, and then it enters the inner cavity 11 through the upper vent 111, cooling the electrical equipment within the inner cavity 11. It should be noted that: firstly, the main cabinet 1 can have a dedicated air intake channel for the cooling unit; secondly, the inner cavity 11 and the cooling cavity will always be sealed using enclosed devices, such as sliding doors or hinged doors, and a rainproof plate can be installed on top of the main cabinet 1. These are all existing technologies and will not be elaborated further. Furthermore, the cooling unit is not a necessary component of the distribution cabinet. In areas with low heat dissipation requirements, natural airflow can be used to remove heat.

[0034] The auxiliary cabinet 3 is slidably mounted on one side of the main cabinet 1 to house the electronic heating component 4 and the quick-change component 5. Moving the auxiliary cabinet 3 triggers the quick-change component 5 to switch operating states. Specifically, the auxiliary cabinet 3 is moved by a cylinder or electric pusher. A mounting cavity 31 is provided on the side of the auxiliary cabinet 3 closest to the main cabinet 1, and the electronic heating component 4, which can be an electric heating plate, is installed in the mounting cavity 31. When the auxiliary cabinet 3 moves to be flush with the main cabinet 1, the electric heating plate can partially contact the dehumidification component 2, accelerating evaporation efficiency. When the auxiliary cabinet 3 moves away from the main cabinet 1, it facilitates the replacement of parts of the dehumidification component 2 by the operator, maintaining the dehumidification capacity of the dehumidification component 2.

[0035] Reference Figure 3 The dehumidification assembly 2 includes a first inner dehumidification plate 21, a second inner dehumidification plate 22, and an outer dehumidification plate 23. The first inner dehumidification plate 21 is fixedly disposed on one side of the inner cavity 11. Multiple second inner dehumidification plates 22 are disposed and fixed to other side walls and / or door panels of the inner cavity 11 where the first inner dehumidification plate 21 is not disposed. The second inner dehumidification plates 22 are located on the lower side of the side wall. The area of ​​the first inner dehumidification plate 21 is larger than that of the second inner dehumidification plate 22. Each second inner dehumidification plate 22 is connected to the first inner dehumidification plate 21. When the condensate in the main cabinet 1 flows, it usually flows downward. The condensate flows downward synchronously and is absorbed by the first inner dehumidification plate 21 and the second inner dehumidification plate 22. At the same time, because the area of ​​the first inner dehumidification plate 21 is larger, its overall humidity rises more slowly. The first inner dehumidification plate 21 can transfer the humidity absorbed by each second inner dehumidification plate 22 to the first inner dehumidification plate 21 for centralized treatment.

[0036] Reference Figures 4-6 One end of the first internal dehumidifier 21 extends to the outside of the main cabinet 1 through a through groove on one side of the main cabinet 1. An installation plate 13 is fixed on one side of the main cabinet 1. The installation plate 13 is set parallel to the surface of one side of the main cabinet 1. The installation plate 13 has a through groove 131, which is a vertical groove. The first internal dehumidifier 21 can be inserted into the vertical groove.

[0037] An external dehumidifier 23 is separately installed on one side of the main cabinet 1, corresponding to the secondary cabinet 3. One end of the external dehumidifier 23 is fixed with a connector 24, which engages with the mounting plate 13. Through the pressing of the quick-change assembly 5, the external dehumidifier 23 and the first internal dehumidifier 21 are pressed together tightly, allowing the humidity from the first internal dehumidifier 21 to transfer to the external dehumidifier 23. This means that simply replacing the external dehumidifier 23 with a drier one can improve the dehumidification capacity of the dehumidification assembly 2. The external dehumidifier 23 can contact the electronic heating assembly 4 when the secondary cabinet 3 is nearby, increasing the speed of moisture dissipation and extending the single-use lifespan of the external dehumidifier 23.

[0038] As one embodiment, the connector 24 includes a plate 241 and a mating part 242. The mating part 242 is fixed to the end of the plate 241. The external dehumidifying sheet 23 is fixed to one side of the plate 241. A strip groove 133 and multiple slots 132 are provided on one side of the mounting plate 13. The strip groove 133 is connected to the through groove 131. The slots 132 are located at the end of the strip groove 133 and are connected to the strip groove 133. When the connector 24 and the mounting plate 13 are mated, the plate 241 can be inserted into the strip groove 133, and the mating part 242 can be locked into the slots 132, thereby achieving the initial positioning of the connector 24 and the mounting plate 13. In this state, the mounting plate 13, the plate 241 and the mating part 242 are all on the same plane, which facilitates the pressing of the quick-change assembly 5.

[0039] The other end of the external dehumidifier 23 is fixed with a rotating shaft 231. The main cabinet 1 is provided with a coil spring 14 and a positioning shaft 15. The positioning shaft 15 is rotatably connected to one side of the main cabinet 1 and fixed to the center of the coil spring 14. The center of the positioning shaft 15 has an inner hole 151, and the rotating shaft 231 can be inserted and snapped into the inner hole 151. When installing the external dehumidifier 23, the rotating shaft 231 can be installed in the inner hole 151, and the connector 24 can be pulled upward to snap the connector 24 onto the mounting plate 13. With the pressing of the quick-change assembly 5, the installation of the external dehumidifier 23 can be realized.

[0040] As one implementation, a plurality of insert rods 232 are fixed to the end of the rotating shaft 231, and a plurality of positioning holes 152 that can cooperate with the insert rods 232 are opened in the inner end of the inner hole 151. The plurality of insert rods 232 can be inserted into the plurality of positioning holes 152 respectively, so that when the rotating shaft 231 is inserted into the inner hole 151, the rotating shaft 231 and the positioning shaft 15 can rotate synchronously.

[0041] Furthermore, a first positioning groove 233 is provided in the middle of the rotating shaft 231, and a second positioning groove 153 is provided in the middle of the positioning shaft 15. The second positioning groove 153 is connected to the inner hole 151. When the rotating shaft 231 is inserted into the positioning shaft 15, and the insertion rod 232 and the positioning hole 152 are engaged, the first positioning groove 233 and the second positioning groove 153 are connected. The quick-change component 5 can be engaged in the first positioning groove 233 and the second positioning groove 153 to prevent the rotating shaft 231 and the positioning shaft 15 from rotating. This prevents the connector 24 and the mounting plate 13 from falling off due to impact and vibration of the power distribution cabinet, which would cause the coil spring 14 to return to its original state and roll up the outer dehumidifying plate 23, resulting in a malfunction.

[0042] The quick-change assembly 5 has two states: a quick-change state and a working state. In the quick-change state, it can quickly detach from the connector 24 and mounting plate 13 to wind and pull out the external dehumidifier 23. In the working state, it can maintain a stable fit between the connector 24 and mounting plate 13, ensuring the stable installation of the external dehumidifier 23. When the secondary cabinet 3 is pulled away from the main cabinet 1, the quick-change assembly 5 is in the quick-change state. When the secondary cabinet 3 is close to the main cabinet 1, it is driven into the working state.

[0043] Reference Figure 7 The quick-change assembly 5 includes a pressure plate 51, a telescopic rod 52, a limiting ring 53, a spring 54, a square rod 55, a buffer sleeve 56, a rack 58, and a gear 57. One end of the square rod 55 is fixed to the auxiliary cabinet 3. The rack 58 and the square rod 55 are fixed. As the auxiliary cabinet 3 moves, the square rod 55 slides synchronously, thereby driving the rack 58 to move. The gear 57 is rotatably connected to the main cabinet 1. The gear 57 meshes with the rack 58. The movement of the rack 58 can drive the rack 58 to rotate.

[0044] A buffer sleeve 56 is fitted onto one end of the square rod 55 near the main cabinet 1. A limiting ring 53 is fixed to one end of the buffer sleeve 56. A telescopic rod 52 is fixed between the pressure plate 51 and the limiting ring 53. A spring 54 is fitted onto the outer ring of the telescopic rod 52. The two ends of the spring 54 are fixed to the limiting ring 53 and the pressure plate 51, respectively. The pressure plate 51 can press against the surface of the mounting plate 13 and is located at the junction of the slot 132 and the strip groove 133. After the connector 24 is inserted into the mounting plate 13, the pressure plate 51 can press against the connector 24, connecting the outer dehumidifying plate 23 and the inner first dehumidifying plate together. It should be noted that a limiting structure is provided between the end of the buffer sleeve 56 and the square rod 55 to prevent the square rod 55 from detaching from the buffer sleeve 56. This is prior art and will not be described further in this application.

[0045] One end of gear 57 is fixed to a connecting shaft 571, and a rocker arm 5711 is rotatably connected to the end of the connecting shaft 571. A torsion spring (not shown in the figure) is sleeved on the connecting shaft 571. The two ends of the torsion spring are respectively fixed to the ends of the connecting shaft 571 and the rocker arm 5711, and a limiting rod 5712 is fixed thereto. A groove 561 is opened on the lower side of the buffer sleeve 56, and the limiting rod 5712 can be inserted into the groove 561 from bottom to top. Furthermore, two inclined surfaces 5611 are opened at the opening of the groove 561 to facilitate the insertion of the limiting rod 5712.

[0046] When the quick-change component 5 is in working condition, the auxiliary cabinet 3 moves to fit against the main cabinet 1. At this time, the limit rod 5712 disengages from the groove 561. As the position of the auxiliary cabinet 3 approaches the main cabinet 1, the square rod 55 inserts into the buffer sleeve 56 to press the limit ring 53. The limit ring 53 moves toward the pressure plate 51, shortening the telescopic rod 52 and compressing the spring 54, generating sufficient pressure on the connector 24 to maintain the position of the external dehumidifier 23.

[0047] When the quick-change assembly 5 switches from the working state to the quick-change state, the auxiliary cabinet 3 moves away from the main cabinet 1. The auxiliary cabinet 3 drives the square rod 55 to move outward. During the movement of the square rod 55, the pressure of the spring 54 is released first. During this process, the square rod 55 drives the rack 58 to move. The rack 58 drives the gear 57 to rotate. The gear 57 drives the rocker arm 5711 to rotate through the connecting shaft 571. When the spring 54 returns to normal, the limit rod 5712 rotates to the bottom of the groove 561 and gets stuck in the groove 561, maintaining the position of the buffer sleeve 56, the telescopic rod 52, the pressure plate 51 and the limit ring 53. At this time, the square rod 55 continues to move. The square rod 55 moves outward relative to the buffer sleeve 56, so that there is a certain gap between the square rod 55 and the limit ring 53. At this time, it is the quick-change state of the quick-change assembly 5.

[0048] During operation, the operator can push the pressure plate 51 to detach it from the mounting plate 13. At this time, the connector 24 can be quickly removed. Under the action of the coil spring 14, the outer moisture-absorbing sheet is rolled around the rotating shaft 231 to form a shaft body, which is easy to pull out. At this time, the rotating shaft 231, the outer moisture-absorbing sheet and the connector 24 can be removed and replaced simultaneously. However, in actual work, due to the large elastic force of spring 54, the operator needs to use excessive force to overcome the elastic force by hand. At this time, the operator can manually swing the rocker arm 5711. The elastic force of the torsion spring is small, and the rocker arm 5711 is easy to apply force, making it easier to operate. At this time, the limit rod 5712 disengages from the groove 561, and the buffer sleeve 56 can move freely relative to the square rod 55. At this time, the pressure plate 51 is only against the surface of the mounting plate 13 and can slide freely. The operator can push the pressure plate 51, the telescopic rod 52, the spring 54, the limit ring 53 and the buffer sleeve 56 outwards in a synchronized manner, which can quickly make the pressure plate 51 disengage from the mounting plate 13, achieving the effect of quick disassembly.

[0049] After replacement, the worker pulls back the pressure plate 51. Under the action of the torsion spring, the limiting rod 5712 is locked back into the groove 561, keeping the pressure plate 51 against the mounting plate and initially fixing the connector 24. Then, the quick-change assembly 5 changes from the quick-change state to the working state, that is, the auxiliary cabinet 3 moves closer to the main cabinet 1, and the square rod 55 moves towards the main cabinet 1. At this time, the rotating gear 57 drives the rocker arm 5711 to rotate, and the limiting rod 5712 can disengage from the groove 561. As the auxiliary cabinet 3 moves towards the main cabinet 1, the square rod 55 compresses the spring 54 and applies elastic force to the pressure plate 51. The pressure plate 51 can apply greater pressure to the mounting plate 13, thereby keeping the connector 24 stably installed on the mounting plate 13 and keeping the outer moisture-absorbing sheet stable.

[0050] Reference Figure 9Furthermore, the quick-change assembly 5 also includes a fixing frame 59, a buffer spring 591, and a positioning rod 592. The fixing frame 59 is fixed to the inside of the sub-cabinet 3, the buffer spring 591 is fixed to the fixing frame 59, and the positioning rod 592 is fixed to the buffer ring. As the quick-change assembly 5 switches to the working state, the positioning rod 592 can be inserted into the first positioning groove 233 and the second positioning groove 153 to prevent the rotation of the positioning shaft 15 and the rotating shaft 231, thus preventing the connecting piece 24 from being pulled off instantly by the coil spring 14 after the pressure ring is loosened by impact.

[0051] The implementation principle of this invention is as follows: First, the condensate in the main cabinet 1 can flow through the side wall of the cabinet to the first inner dehumidifier 21 and the second inner dehumidifier 22. The first inner dehumidifier 21 and the second inner dehumidifier 22 work together to absorb and concentrate the condensate. Since the first inner dehumidifier 21 has a larger area and the humidity rises more slowly, it can mobilize the humidity absorbed by the second inner dehumidifier 22 to itself, which is convenient for centralized treatment.

[0052] Meanwhile, the external dehumidifier 23 is located on the side of the main cabinet 1 corresponding to the auxiliary cabinet 3. It cooperates with the mounting plate 13 through the connector 24 and is tightly connected to the first internal dehumidifier 21 under the pressure of the quick-change assembly 5, so that the humidity of the first internal dehumidifier 21 is transferred to the external dehumidifier 23. When it is necessary to improve the dehumidification capacity of the dehumidification assembly 2, it is only necessary to replace it with a drier external dehumidifier 23.

[0053] The auxiliary cabinet 3 can be slidably mounted on one side of the main cabinet 1. Its movement is controlled by a cylinder or electric pusher. When it is close to the main cabinet 1, the electronic heating component 4 partially contacts the dehumidification component 2, accelerating evaporation efficiency. When it is away from the main cabinet 1, it facilitates the replacement of parts of the dehumidification component 2 by the operator. The quick-change component 5 has a quick-change state and a working state. When the auxiliary cabinet 3 is pulled away from the main cabinet 1, it is in the quick-change state, which can quickly wind and pull out the external dehumidification sheet 23. When the auxiliary cabinet 3 is close to the main cabinet 1, it drives the quick-change component 5 into the working state, maintaining the stable installation of the external dehumidification sheet 23 and ensuring the continuous and effective operation of the dehumidification component 2.

[0054] Those skilled in the art will understand that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0055] It should be understood that the above embodiments are merely exemplary and not restrictive. Various obvious or equivalent modifications or substitutions that can be made by those skilled in the art regarding the above details without departing from the basic principles of the present invention will be included within the scope of the claims of the present invention.

Claims

1. An outdoor power distribution cabinet with a dehumidification and heat dissipation device, characterized in that, Includes main cabinet, secondary cabinet, dehumidification unit and quick-change unit; The dehumidification assembly includes an external dehumidification plate, a first internal dehumidification plate, and a second internal dehumidification plate. The first and second internal dehumidification plates are located inside the main cabinet, while the external dehumidification plate is located outside the main cabinet. One end of the external dehumidification plate is provided with a rotating shaft, and the other end is provided with a connecting piece. A coil spring is provided outside the main cabinet, which can drive the rotating shaft to rotate. A mounting plate is provided on one side of the main cabinet. The connector can be fitted with the mounting plate. When the connector is fitted with the mounting plate, the outer dehumidifier and the first inner dehumidifier are in contact. The quick-change assembly has a working state and a quick-change state. The auxiliary cabinet is movably disposed on one side of the main cabinet. When the auxiliary cabinet moves away from the main cabinet, the quick-change assembly will switch from the working state to the quick-change state.

2. An outdoor power distribution cabinet with a dehumidification and heat dissipation device as described in claim 1, characterized in that, The quick-change assembly includes a pressure plate, a telescopic rod, a limiting ring, a spring, and a square rod; The square rod and the sub-cabinet are fixed together, and the rack is fixedly connected to the square rod. The limiting ring is connected to one end of the square rod, the telescopic rod is located between the pressure plate and the limiting ring, the spring shown is sleeved on the telescopic rod, and the pressure plate can press against the mounting plate.

3. An outdoor power distribution cabinet with a dehumidification and heat dissipation device as described in claim 2, characterized in that, The quick-change assembly also includes gears, racks, and buffer sleeves; The gear is rotatably connected to the main cabinet body, the rack is fixed to the square rod, the gear and the rack mesh, one end of the buffer sleeve is fixed to the limiting ring, and the square rod passes through the buffer sleeve; One end of the gear is fixed with a connecting shaft, the end of the connecting shaft is fixed with a rocker arm, a torsion spring is sleeved on the connecting shaft, a groove is opened on the lower side of the buffer sleeve, and the limiting rod can be inserted into the groove from top to bottom.

4. An outdoor power distribution cabinet with a dehumidification and heat dissipation device as described in claim 2, characterized in that, A positioning shaft is provided on one side of the main cabinet. The positioning shaft is fixed to the coil spring. An inner hole is provided in the positioning shaft, and the rotating shaft can be inserted into the inner hole. Multiple insert rods are fixed to the end of the rotating shaft, and a positioning hole is provided in the inner hole, into which the insert rods can be inserted.

5. An outdoor power distribution cabinet with a dehumidification and heat dissipation device as described in claim 4, characterized in that, The rotating shaft has a first positioning groove in the middle, and the positioning shaft has a second positioning groove in the middle, and the first positioning groove and the second positioning groove can communicate with each other. The quick-change assembly also includes a fixing frame, a buffer spring, and a positioning rod. When the quick-change assembly is in operation, the positioning rod can be inserted into the first positioning groove and the second positioning groove.

6. An outdoor power distribution cabinet with a dehumidification and heat dissipation device as described in claim 1, characterized in that, It also includes electronic heating components; The electronic heating component is located inside the secondary cabinet and can contact the external dehumidifier.

7. An outdoor power distribution cabinet with a dehumidification and heat dissipation device as described in claim 1, characterized in that, The mounting plate has a through slot, and the first inner dehumidifying plate can be inserted into the through slot.

8. An outdoor power distribution cabinet with a dehumidification and heat dissipation device as described in claim 1, characterized in that, The mounting plate has a strip groove and a slot on one side; The slot is located at the end of the strip groove. The connector includes a plate and a mating part. The external dehumidifier is fixed to one side of the plate. The plate and the mating part can be fixed in the strip groove and the slot, respectively.

9. An outdoor power distribution cabinet with a dehumidification and heat dissipation device as described in claim 1, characterized in that, The main cabinet body is provided with an inner cavity and a ventilation cavity; The ventilation cavity is equipped with a heat dissipation unit, and the upper and lower vents are respectively provided on the upper and lower sides of the cavity.

10. An outdoor power distribution cabinet with a dehumidification and heat dissipation device as described in claim 1, characterized in that, The secondary cabinet has a mounting cavity on the side closest to the main cabinet, and the electronic heating component is located in the mounting cavity.

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