A distribution box with anti-creeping protection function

Abstract

The application relates to the technical field of electrical equipment, in particular to a distribution box with anti-creeping protection function, which comprises a bottom box, a fixed box body assembly is arranged on the bottom box, a cabinet door is matched with one end of the fixed box body assembly, a top cover assembly is arranged above the fixed box body assembly, an active shell assembly is further arranged, and the active shell assembly is a cooperation mechanism with the fixed box body assembly and the bottom box. The active shell assembly is in sliding cooperation with the box body, when the distribution box works, a temperature and humidity sensing module and a remote control module are arranged in the distribution box, the linear module is controlled, and the state of the distribution box is changed according to the real-time environment around the distribution box. In this way, the distribution box can change the heat dissipation mode according to different external environments, so that the distribution box has good moisture removal performance and heat dissipation performance. The distribution box can protect electrical equipment and power supply lines in an outdoor environment, and reduce the short circuit failure of the lines caused by damp or overheating.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical equipment, in particular to a power distribution box with anti-creeping protection function. BACKGROUND

[0002] The power distribution box is an electrical device integrating switching equipment, measuring instruments, protective appliances and auxiliary equipment. The electrical equipment in the power distribution box is concentrated and the circuit is densely laid, which inevitably generates heat in operation. Therefore, a heat dissipation system needs to be configured to cool the electrical equipment in the power distribution box to avoid short circuit or electric leakage caused by high temperature accelerating insulation aging. In outdoor environment, the heat dissipation problem of the power distribution box is particularly important due to the influence of external environment temperature. The existing outdoor power distribution box has a heat dissipation system with heat dissipation holes opened at the bottom of the side of the box body, and a heat dissipation fan is arranged at the top of the power distribution box to suck air to flow in the power distribution box to complete heat dissipation.

[0003] However, the outdoor power distribution box with this heat dissipation mode has the following problems in use: In life, the power distribution box is often arranged on both sides of the road for easy maintenance, and shrubs are often planted on both sides of the road. Therefore, the power distribution box is surrounded by green shrubs, and a large amount of dew is stored on the shrubs in the early morning and rainy days, increasing the humidity of the surrounding environment. When the power distribution box is working normally, the humid air is easy to enter the inside of the power distribution box through the heat dissipation air exchange holes and natural gaps, thereby causing short circuit risk of the electrical equipment in the power distribution box. In addition, the grounding of the power distribution box is in a humid environment for a long time, which is easy to cause corrosion of the connecting point, resulting in failure of grounding protection and harm to the personal safety of maintenance personnel. SUMMARY

[0004] The purpose of the present application is to provide a power distribution box with anti-creeping protection function to solve the above problems.

[0005] The present application achieves the above-mentioned purpose by the following technical solutions:

[0006] The power distribution box with anti-creeping protection function comprises a bottom box, a fixed box body assembly is arranged on the bottom box, one end of the fixed box body assembly is matched with a cabinet door, a top cover assembly is arranged above the fixed box body assembly, and a movable outer shell assembly is arranged, and the movable outer shell assembly is a cooperation mechanism with the fixed box body assembly and the bottom box respectively.

[0007] The fixed box body assembly comprises a box body fixed on the bottom box, and a rear heat dissipation hole is arranged at the bottom of the back of the box body.

[0008] The movable outer shell assembly includes a movable outer shell surrounding the periphery of the box body, forming a cavity between the movable outer shell and the box body. A partition is fixed to the back of the movable outer shell at one end near the box body, and the partition divides the cavity into a first side cavity, a second side cavity, and a back cavity. A back air intake assembly communicating with the back cavity is provided at the back and upper end of the movable outer shell. The bottom of the back cavity communicates with the box body through a rear heat dissipation hole.

[0009] The top cover assembly includes a top support plate fixed to the movable outer shell, a protective cover fixed to the upper end of the top support plate, and the protective cover and the top support plate form a cavity. Multiple cooling fans are provided between the cavity and the housing. The cavity is connected to the first side cavity and the second side cavity respectively.

[0010] The bottom outer walls on both sides of the movable housing are provided with exhaust components for connecting the first side enclosure cavity and the second side enclosure cavity.

[0011] Preferably, the fixed enclosure assembly also includes a linear module fixed at the center of the upper surface of the enclosure, and the output end of the linear module is fixedly connected to the top support plate. A baffle slot is provided at one end of the enclosure near the cabinet door, and the baffle slot and the movable outer shell assembly are a mating mechanism. Side heat dissipation holes for heat dissipation and ventilation are provided at the bottom of both sides of the enclosure.

[0012] Preferably, the movable outer shell assembly slides with the housing, the bottom of the movable outer shell assembly is provided with a base plate, the open end of the movable outer shell assembly is provided with a baffle, and the baffle slides in the baffle slot, and the inner walls on both sides of the movable outer shell are fixed with isolation covers for sealing the side heat dissipation holes.

[0013] Preferably, the fixed housing assembly further includes multiple linear bearing assemblies fixed to the top side wall of the housing, and the upper end face of the linear bearing assembly is fixedly connected to the top support plate.

[0014] Preferably, the protective cover has heat dissipation channels on its periphery, and a sliding retaining ring is slidably fitted between the protective cover and the top support plate.

[0015] Preferably, the sliding retaining ring includes a sliding support rod for limiting support, the sliding support rod is slidably engaged with the top support plate, a retaining ring is fixed on the upper end face of the sliding support rod, the axial side enclosure of the retaining ring and the heat dissipation channel opened in the protective cover are a matching mechanism, and the bottom surface of the retaining ring and the first side enclosure cavity and the second side enclosure cavity are a matching mechanism.

[0016] Preferably, the exhaust assembly includes a rain cover integrally formed with the movable housing. A rectangular groove is provided on the movable housing corresponding to the position of the rain cover. Rotating seats are fixedly welded to both ends of the rectangular groove, and limiting protrusions are provided on the rotating seats. A rotating shaft is rotatably fitted on the rotating seats, and a sealing plate is fixedly installed on the rotating shaft.

[0017] Preferably, it also includes a protective plate assembly, which is a mating mechanism with the movable outer shell assembly and the base box.

[0018] Preferably, a grounding contact plate is fixedly connected to the lower back surface of the movable housing, and a grounding wire bar is fixedly connected to the bottom box at the position corresponding to the grounding contact plate, and the grounding contact plate and the grounding wire bar are a mating mechanism.

[0019] Preferably, the protective panel assembly includes a protective panel that is a mating mechanism with the cabinet door, connecting rods on both sides of the protective panel, and the protective panel is mated with the movable outer shell and the bottom box through the connecting rods, and an equipotential wire is electrically connected between the protective panel and the bottom box.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. This invention provides a distribution box with leakage protection. During heat dissipation, a cooling fan inside the top cover assembly draws hot air from the top of the box into the cavity of the top cover assembly. As the cooling fan continues to operate, the hot air is blown out along the bottom of the first and second side cavities and discharged into the surrounding environment by the exhaust assembly. Simultaneously, cool air enters the back cavity through the rear air intake assembly and is then drawn into the box through the rear heat dissipation holes, thus completing an airflow circulation pattern of top inlet and bottom outlet. In this way, the hot air generated in the distribution box dehumidifies the environment around the bottom of the distribution box, reducing the corrosion of electrical equipment and wiring caused by moisture in the surrounding environment and preventing short circuits and leakage caused by moisture corrosion.

[0022] 2. The movable outer shell assembly of this invention slides and engages with the enclosure. During operation, a temperature and humidity sensing module and a remote control module within the distribution box control the linear module, thereby adjusting the distribution box's state according to the real-time environment. In different seasons and at different times, the engagement between the movable outer shell assembly and the enclosure is adjusted based on the distribution box's dehumidification and heat dissipation needs. This allows the distribution box to adapt its heat dissipation method to different external environments, resulting in excellent dehumidification and heat dissipation performance. The distribution box thus protects electrical equipment and power lines in outdoor environments, reducing the occurrence of short circuits caused by moisture or overheating.

[0023] 3. The protective plate assembly provided in this invention is used to block the opening of the cabinet door. When the cabinet door needs to be opened, the movable outer shell assembly needs to cooperate with the bottom box, so that the protective plate assembly is in such a position as... Figure 9As shown, in this state, the grounding busbar and grounding contact plate are closed, thus increasing the parallel grounding protection. This adds a condition for opening the cabinet door when starting maintenance equipment. Workers must use the control module of the distribution box to ensure the movable outer casing is closed before opening the cabinet door for maintenance work. This prevents workers from ignoring risks and directly performing live work, reducing the risk of electric shock to maintenance personnel in the event of grounding failure due to wiring faults inside the cabinet. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of a distribution box with leakage protection function according to the present invention, with the movable outer shell assembly in the open state;

[0026] Figure 2 This is an exploded view of the overall structure of a distribution box with leakage protection function according to the present invention;

[0027] Figure 3 This is the present invention. Figure 1 The image shows a bottom view of a distribution box with leakage protection function.

[0028] Figure 4 This is the present invention. Figure 3 A sectional view along the middle AA;

[0029] Figure 5 This is the present invention. Figure 4 A magnified view of area C in the middle;

[0030] Figure 6 This is the present invention. Figure 4 A magnified view of region D in the middle, where arrows indicate the direction of airflow;

[0031] Figure 7 This is the present invention. Figure 3 A sectional view along the middle edge BB;

[0032] Figure 8 This is the present invention. Figure 7 A magnified view of region E in the middle;

[0033] Figure 9 This is a schematic diagram of the overall structure of a distribution box with leakage protection function according to the present invention, with the movable outer shell assembly in the closed state;

[0034] Figure 10 This is the present invention. Figure 9 The diagram shows the interaction between the movable outer shell assembly and the fixed housing assembly in the indicated state.

[0035] Figure 11 This is the present invention. Figure 9 The diagram shows a bottom view of a distribution box with leakage protection function.

[0036] Figure 12 This is the present invention. Figure 11 A cross-sectional view along line A'-A', where the arrows indicate the direction of airflow;

[0037] Figure 13 This is the present invention. Figure 12 A partial view of region F in the middle, where arrows indicate the direction of airflow;

[0038] Figure 14 This is the present invention. Figure 11 A cross-sectional view along line B'-B', where the arrows indicate the direction of airflow.

[0039] The annotations in the attached figures are explained as follows:

[0040] 1. Base box; 2. Fixed box assembly; 3. Protective plate assembly; 4. Movable outer shell assembly; 5. Cabinet door; 6. Top cover assembly; 11. Box support structure; 12. Extended enclosure; 13. Grounding busbar; 21. Side ventilation holes; 22. Rear ventilation holes; 23. Box body; 24. Baffle slot; 25. Linear module; 26. Linear bearing assembly; 31. Protective plate; 32. Connecting rod; 33. Equipotential bonding wire; 41. Movable outer shell; 42. Exhaust assembly; 43. Partition; 44. Baffle 45. Plate; 46. Rear air intake assembly; 47. Isolation cover; 48. Grounding contact plate; 69. Top support plate; 60. Cooling fan; 61. Sliding retaining ring; 62. Protective cover; 251. Fixing base; 252. Linear rail module; 253. Lifting rack; 411. First side cavity; 412. Second side cavity; 413. Rear cavity; 421. Rain cover; 422. Rotating shaft; 423. Sealing plate; 424. Rotating seat; 631. Retaining ring; 632. Sliding support rod. Detailed Implementation

[0041] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] The present invention will be further described below with reference to the accompanying drawings:

[0044] like Figures 1-14 As shown, a distribution box with leakage protection function includes a base box 1, a fixed box assembly 2 on the base box 1, a cabinet door 5 at one end of the fixed box assembly 2, a top cover assembly 6 on the top of the fixed box assembly 2, and a movable outer shell assembly 4. The movable outer shell assembly 4 is a mating mechanism with both the fixed box assembly 2 and the base box 1. The base box 1 includes a box support structure 11, which is used to fix to the installation base of the distribution box. A shelf is fixed on the box support structure 11, and the shelf protrudes from the main body of the box support structure 11 to form an extended enclosure 12. The extended enclosure 12 is used to cooperate with the movable outer shell 41 to form a closed space.

[0045] The fixed enclosure assembly 2 includes an enclosure 23 fixed to the base box 1, and a rear heat dissipation hole 22 is provided at the bottom of the back of the enclosure 23. The enclosure 23 is the main structure of the distribution box. The enclosure 23 used in this invention is a single-door structure, and the opening end of the enclosure 23 cooperates with the cabinet door 5.

[0046] The movable outer shell assembly 4 includes a movable outer shell 41 surrounding the periphery of the housing 23, forming a cavity between the movable outer shell 41 and the housing 23. The movable outer shell 41 has a C-shaped structure. The movable outer shell 41, the three side panels of the housing 23, and the extended surrounding plate 12 form a cavity surrounding the outside of the housing 23. The open end of the movable outer shell 41 is connected via a movable slot. A partition 43 is fixed to the back of the movable outer shell 41, near the end of the housing 23. The partition 43 is fixed to the movable outer shell 41 as a whole, and there is a clearance fit between the partition 43 and the housing 23. The cavity formed by the movable outer shell 41 and the housing 23 is divided into a first side cavity 411, a second side cavity 412, and a back cavity 413 by the two partitions 43. The back of the movable outer shell 41 has a back air intake assembly 45 communicating with the back cavity 413 at its upper end. The bottom of the back cavity 413 communicates with the inside of the housing 23 through a rear heat dissipation hole 22. Figure 14 As shown, the airflow enters the back cavity 413 through the back air intake assembly 45, and then enters the interior of the housing 23 through the rear heat dissipation hole 22.

[0047] The top cover assembly 6 includes a top support plate 61 fixed to the movable outer shell 41. A protective cover 64 is fixed to the upper end of the top support plate 61, and the protective cover 64 and the top support plate 61 form a cavity. Multiple cooling fans 62 are provided between the cavity and the housing 23. The cavity is connected to the first side enclosure cavity 411 and the second side enclosure cavity 412 respectively. The first side enclosure cavity 411 and the second side enclosure cavity 412 are not connected to the interior of the housing 23. In this design, the high-temperature air in the housing 23 is drawn into the cavity of the top cover assembly 6 by the cooling fans 62. The top cover assembly 6 only has a waist hole connecting the first side enclosure cavity 411 and the second side enclosure cavity 412.

[0048] The bottom outer walls on both sides of the movable outer casing 41 are provided with exhaust assemblies 42 for connecting the first side enclosure cavity 411 and the second side enclosure cavity 412. The hot airflow entering the top cover assembly 6 flows through the first side enclosure cavity 411 and the second side enclosure cavity 412 to the exhaust assembly 42 and is discharged to the external environment.

[0049] During operation, the enclosure 23, in the process of heat dissipation, draws hot air from the top of the enclosure 23 into the cavity of the top cover assembly 6 via a cooling fan 62 installed inside the top cover assembly 6. Then, as the cooling fan 62 continues to operate, the hot air is blown out along the bottom of the first side cavity 411 and the second side cavity 412, and discharged into the surrounding environment by the exhaust assembly 42. Simultaneously, cool air enters the back cavity 413 through the back air intake assembly 45, and is then drawn into the enclosure 23 through the rear heat dissipation hole 22, thus completing the top-in, bottom-out airflow circulation. In this way, the hot air generated in the distribution box dehumidifies the environment around the bottom of the distribution box, reducing the corrosion of electrical equipment and wiring caused by moisture in the surrounding environment and preventing short circuits and leakage caused by moisture corrosion.

[0050] As one embodiment of the present invention, such as Figure 2 , Figure 4 , Figure 7 and Figure 8 As shown; the fixed housing assembly 2 also includes a linear module 25 fixed at the center of the upper end face of the housing 23, and the output end of the linear module 25 is fixedly connected to the top support plate 61. The top support plate 61 is fixedly connected to the movable outer shell 41. By changing the relative position of the movable outer shell 41 and the housing 23 through the linear module 25, the engagement state of the housing 23 and the movable outer shell assembly 4 is changed. The linear module 25 includes a fixed seat 251 fixed at the center of the top of the housing 23. A linear rail module 252 is fixed on the inner wall of the fixed seat 251. The slider of the linear rail module 252 is fixed to the fixed seat 251, and the linear rail and the slider slide in cooperation. A lifting rack 253 is provided inside the fixed seat 251, and the lifting rack 253 is fixed to the slide rail. Figure 4 As shown, the gear assembled in the fixed base 251 meshes with the lifting rack 253. The up-and-down movement of the lifting rack 253 is controlled by a motor-driven gear. The linear module 25 is a standard part.

[0051] As one embodiment of the present invention, such as Figures 9-14As shown; the box body 23 has a baffle slot 24 at one end near the cabinet door 5, and the baffle slot 24 and the movable outer shell assembly 4 are mating mechanisms. The bottom of both sides of the box body 23 has side heat dissipation holes 21 for heat dissipation and ventilation. The movable outer shell assembly 4 is slidably fitted with the box body 23, and the bottom of the movable outer shell assembly 4 has a base plate. After the movable outer shell assembly 4 is separated from the extension panel 12, the base plate at the lower end of the movable outer shell assembly 4 is used to isolate the internal space of the movable outer shell 41. The open end of the movable outer shell assembly 4 has a baffle 44, and the baffle 44 is slidably fitted in the baffle slot 24. The baffle 44 is used to close the space between the front notch of the movable outer shell 41 and the cabinet door 5 during the movement of the movable outer shell 41, to prevent animals from entering the power distribution box from the front, and at the same time to keep the bottom of the top cover assembly 6 closed. Isolation covers 46 for sealing the side heat dissipation holes 21 are fixed on the inner walls of both sides of the movable outer shell 41, as shown in the extension panel 12. The bottom of the isolation cover 46 is open, and the isolation cover 46 and the side heat dissipation holes 21 are mating mechanisms.

[0052] As one embodiment of the present invention, such as Figure 2 As shown, the fixed housing assembly 2 also includes multiple linear bearing assemblies 26 fixed to the top side wall of the housing 23, and the upper end face of the linear bearing assembly 26 is fixedly connected to the top support plate 61. The bearing seat of the linear bearing assembly 26 is fixed to the housing 23, and the top end of the sliding rod of the multiple linear bearing assemblies 26 is fixed to the top support plate 61, which plays a limiting role in the process of the linear module 25 lifting the top support plate 61 and the movable outer shell assembly 4.

[0053] As one embodiment of the present invention, such as Figure 6 and Figure 13 As shown. A heat dissipation channel is provided around the protective cover 64, and a sliding retaining ring 63 is slidably fitted between the protective cover 64 and the top support plate 61. The sliding retaining ring 63 includes a sliding support rod 632 for limiting support. The sliding support rod 632 is slidably fitted with the top support plate 61, and the retaining ring 631 is fixed to the upper end face of the sliding support rod 632. The axial side enclosure of the retaining ring 631 and the heat dissipation channel provided in the protective cover 64 form a fitting mechanism, and the bottom surface of the retaining ring 631 and the first side enclosure cavity 411 and the second side enclosure cavity 412 form a fitting mechanism. In the conventional arrangement of the protective cover 64, the cooling fan 62 is located at the top of the distribution box. The rising hot air inside the distribution box facilitates the extraction of hot air from the box body 23 to the protective cover 64 by the cooling fan 62. Figure 6 and Figure 13 The diagram illustrates two engagement states of the sliding baffle ring 63 and the protective cover 64, showing how changing the position of the sliding baffle ring 63 adjusts the airflow direction. The baffle ring 631 is fixed to the upper end face of the sliding support rod 632 by bolts.

[0054] In specific operation, when the linear module 25 lifts the movable outer shell assembly 4 and the top support plate 61, the retaining ring 631 and the sliding support rod 632 are subjected to gravity, causing the retaining ring 631 to fit against the top support plate 61. In this state, the bottom plate of the retaining ring 631 blocks the passage between the cavity of the top cover assembly 6 and the first side cavity 411 and the second side cavity 412. At this time, the airflow direction inside the top cover assembly 6 is as follows: Figure 6 As shown. When the linear module 25 retracts, the bottom surface of the movable housing assembly 4 is in contact with the bottom box 1, and the top support plate 61 approaches the upper end surface of the box 23. During this process, the lower end surface of the sliding support rod 632 contacts the upper end surface of the box 23. As the top support plate 61 moves towards the box 23, the retaining ring 631 moves upward relative to the top support plate 61, thereby causing the retaining ring 631 to gradually reach the position shown. Figure 13 As shown, the side plate of the retaining ring 631 blocks the passage between the protective cover 64 and the outside world, while opening the passage between the cavity of the top cover assembly 6 and the first side cavity 411 and the second side cavity 412.

[0055] When the distribution box is in operation, a temperature and humidity sensing module and a remote control module installed inside the distribution box control the linear module 25. This allows the distribution box to adjust its state according to the real-time environment around it. In different seasons and at different times, the engagement between the movable outer shell assembly 4 and the box body 23 is adjusted based on the distribution box's dehumidification and heat dissipation needs. In hot weather, when heat dissipation is the primary requirement, the linear module 25 lifts the movable outer shell assembly 4, bringing the distribution box to a safe position. Figure 1 As shown, the sliding retaining ring 63 and the protective cover 64 are in the same state. Figure 6 As shown, airflow enters the space between the bottom of the enclosure 23 and the top support plate 61 from the side ventilation holes 21, the rear ventilation holes 22, and the rear air intake assembly 45. Under the action of the cooling fan 62, the hot airflow is discharged along the protective cover 64. This rapid airflow effectively dissipates the heat generated by the electrical equipment inside the enclosure 23, achieving optimal heat dissipation. In the early morning or on rainy days, when air humidity is high and dehumidification is the primary need, the linear module 25 retracts, keeping the distribution box in a cool, dry state. Figure 9 As shown in the diagram, the sliding retaining ring 63 and the protective cover 64 are in the following state of engagement. Figure 13 As shown. At this time, the side heat dissipation vents 21 are covered by the isolation cover 46, and the airflow only enters from the rear air intake assembly 45, then enters the cabinet 23 through the rear heat dissipation vents 22. The hot airflow inside the cabinet 23 is drawn out by the cooling fan 62 into the cavity of the top cover assembly 6, and then discharged from the bottom of the first side enclosure cavity 411 and the second side enclosure cavity 412, thus dehumidifying the surrounding environment. In this way, the distribution box can change its heat dissipation method according to different external environments, giving the distribution box good dehumidification and heat dissipation performance. The distribution box thus protects electrical equipment and power supply lines in outdoor environments, reducing the occurrence of short circuits caused by moisture or overheating.

[0056] As shown in Figures 1-10, one embodiment of the present invention includes a rain cover 421 integrally formed with a movable outer shell 41. A rectangular groove is provided on the movable outer shell 41 corresponding to the position of the rain cover 421. Rotary seats 424 are fixedly welded to both ends of the rectangular groove, and limiting protrusions are provided on the rotating seats 424. A rotating shaft 422 is rotatably fitted on the rotating seats 424, and a sealing plate 423 is fixedly mounted on the rotating shaft 422. The rotating seats 424 are fixedly welded to both ends of the rain cover 421. The base of the rotating seats 424 is a retaining ring, and its rotor portion is rotatably fitted onto the retaining ring. The protrusion is fixedly welded to the rotor, and the protrusion cooperates with the inclined inner wall of the rain cover 421, so that the rotor can only rotate counterclockwise around the fixed retaining ring. Under natural conditions, the sealing plate 423 is in a vertical state under the action of gravity. When the exhaust assembly 42 exhausts, the sealing plate 423 is pushed by the airflow and rotates counterclockwise around the rotating seat 424 to open the airflow channel. When the exhaust assembly 42 intakes air, the sealing plate 423 cannot rotate clockwise, thus blocking the airflow from entering through the exhaust assembly 42.

[0057] In specific operations, when the distribution box is in Figure 1 In the illustrated state, the distribution box prioritizes heat dissipation. The space between the box body 23 and the top support plate 61 is connected to the box body 23, and also to the first side cavity 411, the second side cavity 412, and the back cavity 413. At this time, the back air intake assembly 45 is normally open. If a large amount of air still enters through the exhaust assembly 42, the suction intensity inside the box body 23 will be significantly reduced, thus affecting the gas flow within the box body 23 and reducing the heat dissipation performance of the distribution box. Therefore, a sealing plate 423 is installed at the exhaust assembly 42 to reduce the airflow entering through the exhaust assembly 42, thereby maintaining good ventilation conditions inside the box body 23.

[0058] As one embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 9 and Figure 14As shown. It also includes a protective plate assembly 3, which, along with the movable outer shell assembly 4 and the base box 1, forms a mating mechanism. A grounding contact plate 47 is fixedly connected to the lower back surface of the movable outer shell 41, and a grounding busbar 13 is fixedly connected to the base box 1 at the position corresponding to the grounding contact plate 47; the grounding contact plate 47 and the grounding busbar 13 form a mating mechanism. All electrical equipment and metal casings in the distribution box must be grounded, and the metal casings are connected by wires to ensure that the casings are at the same potential. The enclosure 23 is electrically connected to the movable outer shell assembly 4. The grounding busbar 13, enclosure 23, and bottom box 1 are all connected to the same grounding grid. Through the cooperation of the grounding contact plate 47 and the grounding busbar 13, a parallel path is formed between the enclosure 23 and the movable outer shell 41. When the grounding contact plate 47 is disconnected from the grounding busbar 13, this parallel line forms grounding protection through the enclosure 23 and bottom box 1 with the grounding grid. When the grounding contact plate 47 is closed to the grounding busbar 13, the enclosure 23 and movable outer shell 41 are electrically connected to the bottom box 1, thus forming two parallel grounding lines. The protective plate assembly 3 includes a protective plate 31 that cooperates with the cabinet door 5. Connecting rods 32 are provided on both sides of the protective plate 31, and the protective plate 31 cooperates with the movable outer shell 41 and bottom box 1 through the connecting rods 32. An equipotential conductor 33 is electrically connected between the protective plate 31 and the bottom box 1. The cooperation state between the protective plate 31 and the cabinet door 5 is controlled by changing the relative position of the movable outer shell 41 and the bottom box 1.

[0059] In practical operation, each independent casing of the distribution box is electrically connected to the box body 23 via wires, ensuring that the casings of the distribution box are at the same potential. Box body 23 is electrically connected to the base box 1 and connected to the grounding grid. When the grounding contact plate 47 is closed with the grounding busbar 13, the movable outer casing 41 is electrically connected to the base box 1, and the grounding busbar 13 is connected to the same grounding grid as box body 23. A grounding line is formed between the movable outer casing 41 and the base box 1, parallel to box body 23. When the grounding contact plate 47 is closed with the grounding busbar 13, both lines are connected. If one line fails to ground due to a fault, the other line ensures the distribution box remains grounded. The protective plate assembly 3 is used to block the opening of the cabinet door 5. When the cabinet door 5 needs to be opened, the movable outer casing assembly 4 must cooperate with the base box 1 to ensure the protective plate assembly 3 is in the correct position. Figure 9 As shown, in this state, the grounding busbar 13 and the grounding contact plate 47 are closed, thereby increasing the parallel grounding protection. This increases the conditions for opening the cabinet door 5 when opening the equipment for maintenance. Operators must use the control module of the distribution box to ensure the movable outer casing assembly 4 is closed before opening the cabinet door 5 for maintenance work. This prevents operators from ignoring risks and directly performing live work, reducing the risk of electric shock to maintenance personnel in the event of grounding failure due to wiring faults within the enclosure 23.

[0060] Working Principle: A temperature and humidity sensing module and a remote control module are installed inside the distribution box to control the linear module 25. This allows the distribution box to adjust its state according to the real-time environment around it. In different seasons and at different times, the interaction between the movable outer shell assembly 4 and the box body 23 is adjusted based on the distribution box's dehumidification and heat dissipation needs. In hot weather, when heat dissipation is the primary requirement, the linear module 25 raises the movable outer shell assembly 4, bringing the distribution box to its optimal position. Figure 1 As shown, the sliding retaining ring 63 and the protective cover 64 are in the same state. Figure 6 As shown, airflow enters the space between the bottom of the enclosure 23 and the top support plate 61 from the side ventilation holes 21, the rear ventilation holes 22, and the rear air intake assembly 45. Under the action of the cooling fan 62, the hot airflow is discharged along the protective cover 64. This rapid airflow effectively dissipates the heat generated by the electrical equipment inside the enclosure 23, achieving optimal heat dissipation. In the early morning or on rainy days, when air humidity is high and dehumidification is the primary need, the linear module 25 retracts, keeping the distribution box in a cool, dry state. Figure 9 As shown in the diagram, the sliding retaining ring 63 and the protective cover 64 are in the following state of engagement. Figure 13 As shown. At this time, the side heat dissipation vents 21 are covered by the isolation cover 46, and the airflow only enters from the rear air intake assembly 45, then enters the cabinet 23 through the rear heat dissipation vents 22. The hot airflow inside the cabinet 23 is drawn out by the cooling fan 62 into the cavity of the top cover assembly 6, and then discharged from the bottom of the first side enclosure cavity 411 and the second side enclosure cavity 412, thus dehumidifying the surrounding environment. In this way, the distribution box can change its heat dissipation method according to different external environments, giving the distribution box good dehumidification and heat dissipation performance. The distribution box thus protects electrical equipment and power supply lines in outdoor environments, reducing the occurrence of short circuits caused by moisture or overheating.

[0061] The enclosure 23 is electrically connected to the base box 1 and connected to the grounding grid. When the grounding contact plate 47 is closed with the grounding busbar 13, the movable outer shell 41 is electrically connected to the base box 1, and the grounding busbar 13 is connected to the same grounding grid as the enclosure 23. When one line fails to ground due to a fault, the other line can keep the distribution box grounded. The protective plate assembly 3 is used to block the opening of the cabinet door 5. When it is necessary to open the cabinet door 5, the movable outer shell assembly 4 needs to cooperate with the base box 1 to keep the protective plate assembly 3 in a certain position. Figure 9 As shown, in this state, the grounding busbar 13 and the grounding contact plate 47 are closed, thereby increasing the parallel grounding protection. This increases the conditions for opening the cabinet door 5 when opening the equipment for maintenance. Operators must use the control module of the distribution box to ensure the movable outer casing assembly 4 is closed before opening the cabinet door 5 for maintenance work. This prevents operators from ignoring risks and directly performing live work, reducing the risk of electric shock to maintenance personnel in the event of grounding failure due to wiring faults within the enclosure 23.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A distribution box with leakage protection function, comprising a base box (1), a fixed box assembly (2) provided on the base box (1), a cabinet door (5) fitted at one end of the fixed box assembly (2), and a top cover assembly (6) provided on the top of the fixed box assembly (2), characterized in that: It also includes a movable outer shell assembly (4), and the movable outer shell assembly (4) is a mating mechanism with the fixed box assembly (2) and the bottom box (1), respectively; The fixed housing assembly (2) includes a housing (23) fixed on the bottom housing (1), and a rear heat dissipation hole (22) is provided at the bottom of the back of the housing (23). The movable outer shell assembly (4) includes a movable outer shell (41) surrounding the periphery of the box (23), forming a cavity between the movable outer shell (41) and the box (23). A partition (43) is fixed to the back of the movable outer shell (41) and the end near the box (23), and the partition (43) divides the cavity into a first side cavity (411), a second side cavity (412), and a back cavity (413). A back air intake assembly (45) communicating with the back cavity (413) is provided at the back and upper end of the movable outer shell (41). The bottom of the back cavity (413) is connected to the inside of the box (23) through a rear heat dissipation hole (22). The top cover assembly (6) includes a top support plate (61) fixed on the movable outer shell (41), a protective cover (64) fixed at the upper end of the top support plate (61), and the protective cover (64) and the top support plate (61) form a cavity. Multiple cooling fans (62) are provided between the cavity and the box (23). The cavity is connected to the first side cavity (411) and the second side cavity (412) respectively. The bottom outer walls on both sides of the movable outer shell (41) are provided with exhaust components (42) for connecting the first side cavity (411) and the second side cavity (412). The fixed housing assembly (2) also includes a linear module (25) fixed at the center of the upper end face of the housing (23), and the output end of the linear module (25) is fixedly connected to the top support plate (61). The housing (23) is provided with a baffle slot (24) at one end near the cabinet door (5), and the baffle slot (24) and the movable outer shell assembly (4) are a mating mechanism. The bottom of both sides of the housing (23) are provided with side heat dissipation holes (21) for heat dissipation and ventilation. The movable outer shell assembly (4) is slidably engaged with the housing (23). The bottom of the movable outer shell assembly (4) is provided with a base plate. The opening end of the movable outer shell assembly (4) is provided with a baffle (44), and the baffle (44) is slidably engaged in the baffle slot (24). The inner walls on both sides of the movable outer shell (41) are fixed with isolation covers (46) for sealing the side heat dissipation holes (21). The protective cover (64) has heat dissipation channels on its periphery, and a sliding retaining ring (63) is slidably fitted between the protective cover (64) and the top support plate (61).

2. A distribution box with leakage protection function according to claim 1, characterized in that: The fixed housing assembly (2) also includes multiple linear bearing assemblies (26) fixed on the top side wall of the housing (23), and the upper end face of the linear bearing assembly (26) is fixedly connected to the top support plate (61).

3. A distribution box with leakage protection function according to claim 1, characterized in that: The sliding retaining ring (63) includes a sliding support rod (632) for limiting support. The sliding support rod (632) is slidably engaged with the top support plate (61). The upper end face of the sliding support rod (632) is fixed with a retaining ring (631). The axial side enclosure of the retaining ring (631) and the heat dissipation channel opened by the protective cover (64) are a matching mechanism. The bottom surface of the retaining ring (631) is a matching mechanism with the first side enclosure cavity (411) and the second side enclosure cavity (412).

4. A distribution box with leakage protection function according to claim 2, characterized in that: The exhaust assembly (42) includes a rain cover (421) integrally formed with the movable housing (41). A rectangular groove is provided on the movable housing (41) at the position corresponding to the rain cover (421). Rotating seats (424) are fixedly welded to both ends of the rectangular groove. Limiting protrusions are provided on the rotating seats (424). A rotating shaft (422) is rotatably fitted on the rotating seats (424). A sealing plate (423) is fixedly installed on the rotating shaft (422).

5. A distribution box with leakage protection function according to claim 3, characterized in that: It also includes a protective plate assembly (3), which is a cooperating mechanism with the movable outer shell assembly (4) and the base box (1).

6. A distribution box with leakage protection function according to claim 5, characterized in that: A grounding contact plate (47) is fixedly connected to the lower back surface of the active housing (41), and a grounding busbar (13) is fixedly connected to the bottom box (1) at the position corresponding to the grounding contact plate (47). The grounding contact plate (47) and the grounding busbar (13) are a mating mechanism.

7. A distribution box with leakage protection function according to claim 6, characterized in that: The protective panel assembly (3) includes a protective panel (31) that is a cooperating mechanism with the cabinet door (5). Connecting rods (32) are provided on both sides of the protective panel (31). The protective panel (31) is cooperating with the movable outer shell (41) and the bottom box (1) through the connecting rods (32). An equipotential wire (33) is electrically connected between the protective panel (31) and the bottom box (1).

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