Power distribution cabinet

By installing a sliding adjustment plate in the power distribution cabinet, the state of the heat dissipation vents can be dynamically adjusted according to changes in temperature and humidity, which solves the limitations of traditional power distribution cabinet heat dissipation methods, and achieves the functions of blocking debris, enhancing heat dissipation, or isolating water vapor, thereby improving the stability and reliability of the equipment.

CN122292144APending Publication Date: 2026-06-26SHENZHEN XUNENGDA ELECTRIC APPLIANCE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN XUNENGDA ELECTRIC APPLIANCE TECH CO LTD
Filing Date
2026-03-05
Publication Date
2026-06-26

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Abstract

This invention discloses a power distribution cabinet, relating to the field of power distribution technology. The cabinet includes two side panels, a bottom plate, a top plate, a door panel, and multiple adjustable plates. The side panels, bottom plate, top plate, and door panel enclose an installation space, within which a temperature and humidity monitoring device is installed. Multiple heat dissipation vents are provided on the side panels. The adjustable plates are vertically arranged to form an adjustment frame, which is slidably positioned on the outer side of the side panels. Each adjustable plate is positioned close to a heat dissipation vent. Each adjustable plate includes a filter section, an open section, and a sealed section, and slides relative to the heat dissipation vent. This invention aims to dynamically adjust the opening and closing state of the heat dissipation vents according to actual needs, effectively balancing heat dissipation efficiency and protective performance, preventing overheating or moisture damage to the equipment, and improving the stability and reliability of the power distribution cabinet.
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Description

Technical Field

[0001] This invention relates to the field of power distribution technology, and in particular to a power distribution cabinet. Background Technology

[0002] As the core device in a power system that enables centralized distribution, control, and protection of electrical energy, the stable operation of the distribution cabinet has a decisive impact on the safety and reliability of critical areas such as industrial production, building facilities, and energy supply. In practical applications, the electrical components inside the distribution cabinet generate a large amount of heat during operation. If heat dissipation is not timely, it can easily lead to equipment overheating or even failure.

[0003] Traditional heat dissipation methods primarily rely on natural convection through ventilation holes or fixed cooling fans. To prevent the intrusion of dust, insects, and other foreign objects, filters are typically installed on the outside of the ventilation holes. However, this fixed design has significant drawbacks: while filters can block some solid impurities, they significantly increase airflow resistance, leading to reduced heat dissipation efficiency. More importantly, existing solutions cannot dynamically respond to changes in internal temperature and humidity. For example, when the ambient temperature rises sharply or the equipment load increases, the filter continuously obstructs airflow, failing to promptly improve heat dissipation capacity, potentially causing the internal temperature to accumulate and exceed limits. Furthermore, in rainy or high-humidity conditions, the filter cannot effectively isolate moisture or completely seal the ventilation holes, allowing external moisture to seep into the interior, easily causing electrical components to become damp, insulation performance to deteriorate, or even short circuits, posing safety hazards. Summary of the Invention

[0004] The main objective of this invention is to propose a power distribution cabinet that dynamically adjusts the opening and closing status of the heat dissipation vents according to actual needs, effectively balancing heat dissipation efficiency and protection performance, preventing equipment from overheating or getting damp, and improving the stability and reliability of the power distribution cabinet.

[0005] To achieve the above objectives, the power distribution cabinet proposed in this invention includes:

[0006] Two side panels, a bottom panel, a top panel, and a door panel are provided. The side panels, the bottom panel, the top panel, and the door panel enclose an installation space. A temperature and humidity monitoring device is provided in the installation space. The side panels have multiple heat dissipation vents. Multiple adjusting plates are arranged vertically to form an adjusting frame. The adjusting frame is slidably disposed on the outside of the side plate. Each adjusting plate is closely attached to a heat dissipation vent. Each adjusting plate includes a filter section, an open section, and a sealed section. The adjusting plate slides relative to the heat dissipation vent. When the filter section is disposed on the outside of the heat dissipation vent, it can prevent debris from entering. When the open section is disposed on the outside of the heat dissipation vent, it can directly connect the inside and outside to improve the heat dissipation effect. When the sealed section is disposed on the outside of the heat dissipation vent, it can seal the heat dissipation hole to prevent moisture from entering the interior.

[0007] In one embodiment, the distribution cabinet further includes a lifting device for driving the adjustment frame to rise and fall, and the temperature and humidity data detected by the temperature and humidity monitoring device is transmitted to the lifting device.

[0008] In one embodiment, the side plate has protruding retaining strips on both sides, and the cross-section of the retaining strips is hook-shaped to form retaining grooves. The two sides of the adjustment frame are respectively retained in the two retaining grooves.

[0009] In one embodiment, the adjusting frame is provided with locking blocks on both sides, the locking blocks are held in the locking slots, the locking slots are provided with multiple clearance openings, and the adjusting frame is raised so that the locking blocks are taken out through the clearance openings.

[0010] In one embodiment, the base plate is equipped with a cooling fan, and the top plate has cooling holes.

[0011] In one embodiment, a shield is provided above the top plate, the shield being used for sun and rain protection.

[0012] In one embodiment, the inner side of the side plate is provided with a plurality of guide plates, which are located on one side of the heat dissipation port. The guide plates are used to guide a portion of the air blown by the cooling fan to the heat dissipation port for dissipation, so as to improve the heat dissipation efficiency or expel water vapor.

[0013] In one embodiment, the guide plate has a closed state and an open state. When the guide plate is in the closed state, it is positioned above the heat dissipation vent to avoid blocking the heat dissipation of the vent. When the guide plate is in the open state, it is inclined from top to bottom to guide the air blowing from below to the heat dissipation vent.

[0014] In one embodiment, the guide plate has a rotating shaft at its bottom, the rotating shaft is rotatably mounted on the side plate, a torsion spring is provided on the outside of the rotating shaft, a pushing block extends from the bottom of the guide plate, and a pushing member is provided in the opening section. The pushing member is used to push the pushing block so that the guide plate rotates along the rotating shaft, so that the guide plate changes from a closed state to an open state.

[0015] In one embodiment, the outer side of the adjustment frame is provided with multiple handles.

[0016] The power distribution cabinet provided in this application has the advantage of dynamically adjusting the state of the heat dissipation vents according to changes in temperature and humidity by setting a sliding adjustment plate, so as to achieve the functions of blocking debris, enhancing heat dissipation, or isolating water vapor. It can dynamically adjust the opening and closing state of the heat dissipation vents according to actual needs, effectively balancing heat dissipation efficiency and protection performance, avoiding overheating or moisture damage to equipment, and improving the stability and reliability of the power distribution cabinet. Attached Figure Description

[0017] 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 the structures shown in these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the power distribution cabinet provided by the present invention; Figure 2 This is a schematic diagram of the adjustment plate in its normal state. Figure 3 This is a schematic diagram showing the heat dissipation status of the regulating plate; Figure 4 This is a schematic diagram of the regulating plate in its closed state; Figure 5 This is a diagram illustrating an explosion. Figure 6 This is an enlarged schematic diagram of the adjustment plate; Figure 7 This is a schematic diagram of the inner wall structure of the side panel; Figure 8 This is a schematic diagram showing the deflector in the open position.

[0019] Explanation of icon numbers: 1000. Distribution cabinet; 1. Side panel; 11. Heat dissipation vent; 12. Clamping strip; 13. Clearance opening; 14. Guide plate; 15. Torsion spring; 16. Push block; 2. Base plate; 3. Top plate; 4. Door panel; 6. Adjustment plate; 61. Filter section; 62. Opening section; 621. Pushing component; 63. Sealing section; 64. Clamping block; 7. Lifting device; 9. Baffle plate; 10. Handle.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0024] Existing power distribution cabinets typically rely on fixed ventilation holes or filters for heat dissipation. This method has limitations, as it cannot flexibly adjust the heat dissipation based on the actual temperature and humidity inside the cabinet. For example, when the internal temperature is high, the filter obstructs airflow, affecting heat dissipation efficiency; conversely, when the external humidity is high, the ventilation holes cannot be effectively sealed, potentially allowing moisture to enter the cabinet and damage internal electrical components.

[0025] In response, this application proposes a power distribution cabinet 1000, please refer to [link / reference needed]. Figures 1 to 8 The power distribution cabinet 1000 is equipped with a sliding adjustment frame, which includes a filter section 61, an open section 62 and a sealed section. According to actual needs, different sections can be aligned with the heat dissipation vent 11, thereby achieving flexible control over the state of the heat dissipation vent 11 and effectively solving the limitations of the heat dissipation method of the traditional power distribution cabinet 1000.

[0026] This embodiment provides a power distribution cabinet 1000, whose main structure consists of two side panels 1, a bottom plate 2, a top plate 3, and a door panel 4. These panels are fixed together by a connection method, forming an installation space for accommodating the electrical components inside the power distribution cabinet 1000. To monitor the environmental conditions inside the installation space in real time, a temperature and humidity monitoring device is installed within the installation space. Furthermore, multiple ventilation openings 11 are provided on the side panels 1 of the power distribution cabinet 1000 to promote air circulation between the internal and external environments.

[0027] To enable flexible control of the heat dissipation vent 11, the distribution cabinet 1000 is also equipped with multiple adjustment plates 6. These adjustment plates 6 are arranged vertically and together form an adjustment frame. The adjustment frame is designed to slide on the outside of the side plate 1. Each adjustment plate 6 is designed to be closely attached to a heat dissipation vent 11, so that the corresponding heat dissipation vent 11 can be covered or exposed when the adjustment frame slides.

[0028] Specifically, each regulating plate 6 integrates three functional areas: a filter section 61, an opening section 62, and a sealed section. The filter section 61 is designed to allow airflow while blocking debris from entering; the opening section 62 is designed to enable direct airflow between the inside and outside of the distribution cabinet 1000 to improve heat dissipation; and the sealed section is designed to completely seal the heat dissipation vent 11 to prevent moisture from entering the interior.

[0029] By sliding the adjusting bracket, the adjusting plate 6 can switch positions relative to the heat dissipation vent 11. When the adjusting bracket is moved to align the filter section 61 with the heat dissipation vent 11, air can circulate inside the distribution cabinet 1000, while external debris is effectively blocked. Furthermore, when a stronger heat dissipation effect is required inside the distribution cabinet 1000, the adjusting bracket can be slid to align the opening section 62 with the heat dissipation vent 11. At this time, the heat dissipation vent 11 is in a fully open state, with minimal airflow resistance, thereby improving heat dissipation efficiency. As a preferred embodiment, when the ambient humidity is high, the adjusting bracket can be slid to align the sealed section with the heat dissipation vent 11. At this time, the heat dissipation vent 11 is completely closed, effectively preventing external moisture from entering the distribution cabinet 1000. The sliding of the adjusting bracket can be achieved by manual pushing and pulling, or driven by a simple mechanical linkage mechanism.

[0030] Please see Figure 1 Furthermore, this application proposes that the power distribution cabinet 1000 also includes a lifting device 7, which is used to drive the adjustment frame to lift, and the temperature and humidity data detected by the temperature and humidity monitoring device is transmitted to the lifting device 7.

[0031] Specifically, the lifting device 7 is a mechanical mechanism capable of providing vertical movement, its function being to achieve automated position adjustment of the adjustment frame. The lifting device 7 can take various forms; for example, it can be a motor-driven screw mechanism, where the rotation of the screw drives the nut and the adjustment frame connected to the nut to move up and down; it can also be a gear and rack mechanism, where a motor drives a gear to roll along a rack fixed to the side plate 1, thereby raising and lowering the adjustment frame; or it can use a hydraulic or pneumatic cylinder, where fluid pressure drives the piston rod to extend and retract, achieving the raising and lowering of the adjustment frame. Simultaneously, the temperature and humidity monitoring device continuously monitors the temperature and humidity parameters within the installation space of the distribution cabinet 1000. These detected analog or digital signals are transmitted in real time to the control unit of the lifting device 7 via wired or wireless connections. The control unit of the lifting device 7 has a built-in microprocessor and corresponding control algorithms, capable of receiving, parsing, and processing this temperature and humidity data, and determining whether the current environmental conditions require adjustment of the adjustment frame's position based on preset logic or thresholds, thereby issuing corresponding drive commands to the actuator of the lifting device 7. This achieves automated control of the adjustment frame.

[0032] Please see Figure 2 Furthermore, this application proposes that the two sides of the side plate 1 are provided with retaining strips 12, the cross-section of the retaining strips 12 is hook-shaped to form a retaining groove, and the two sides of the adjustment frame are respectively retained in the two retaining grooves.

[0033] The hook-shaped retaining strip 12 on the side plate 1 provides a stable and precise sliding track for the adjustment frame. The adjustment frame is firmly held in the slot, effectively avoiding the risk of shaking and falling off during sliding, thus ensuring the smoothness and reliability of the adjustment frame operation. This design not only improves the operational stability of the adjustment frame, ensuring that the filter section 61, the open section 62, and the sealed section can be accurately aligned with the heat dissipation vent 11, realizing precise adjustment of the internal environment of the distribution cabinet 1000, but also simplifies the installation and disassembly process of the adjustment frame, facilitating daily maintenance and cleaning.

[0034] Please see Figure 6 This application further proposes that the adjusting frame is provided with locking blocks 64 on both sides, the locking blocks 64 are locked in the locking slot, the locking slot is provided with a plurality of clearance openings 13, and the adjusting frame is raised so that the locking blocks 64 are taken out through the clearance openings 13.

[0035] The locking block 64 is a protruding structure located on both sides of the adjusting frame, designed to fit the internal contour of the slot. The clearance opening 13 is a pre-set opening along the length of the slot to interrupt its continuity. The presence of the clearance opening 13 provides a channel for the locking block 64 to escape the constraints of the slot, and is a key structure for facilitating the easy assembly and disassembly of the adjusting frame. Once the locking block 64 is aligned with the clearance opening 13, it is no longer obstructed by the continuous wall of the slot, allowing it to be smoothly removed from the slot via the clearance opening 13. This removal method avoids the limitation that the adjusting frame must slide completely out of one end of the slot, greatly simplifying the disassembly process.

[0036] This application further proposes that the base plate 2 is equipped with a cooling fan, and the top plate 3 has ventilation holes. The cooling fan is an active ventilation device, whose main function is to actively guide air to flow inside the distribution cabinet 1000 through forced convection, thereby achieving effective heat transfer and exhaust.

[0037] Please see Figure 1 This application further proposes that a shielding plate 9 be provided above the top plate 3 of the above-mentioned power distribution cabinet 1000, the shielding plate 9 being used for sunshade and rain protection.

[0038] Please see Figure 5 , Figure 7 , Figure 8 This application further proposes that the inner side of the side plate 1 is provided with a plurality of guide plates 14, the guide plates 14 are provided on one side of the heat dissipation port 11, and the guide plates 14 are used to guide a portion of the air blown by the cooling fan to the heat dissipation port 11 for dissipation, so as to improve the heat dissipation efficiency or expel water vapor.

[0039] Specifically, the air deflector 14 is a structural component used to change or guide the direction of airflow. In this application, its main function is to direct the airflow blown out by the cooling fan, making it flow more effectively towards the heat dissipation port 11. The air deflector 14 can guide a portion of the airflow flowing from the bottom-in, top-out air duct to the sides for discharge, ensuring that heat or moisture can be discharged more quickly and thoroughly. This effectively improves the overall heat dissipation efficiency of the distribution cabinet 1000 and accelerates the discharge of internal moisture, helping to maintain the stability and dryness of the internal environment of the distribution cabinet 1000 and ensuring the safe operation of the internal electrical equipment.

[0040] Please see Figure 5 , Figure 7 , Figure 8This application further proposes that the guide plate 14 has a closed state and an open state. When the guide plate 14 is in the closed state, it is positioned above the heat dissipation vent 11 to avoid obstructing the heat dissipation of the heat dissipation vent 11. When the guide plate 14 is in the open state, it is inclined from top to bottom to guide the airflow blowing from below to the heat dissipation vent 11.

[0041] The variable state design of the air deflector 14 allows it to adjust its posture and function in the area of ​​the heat dissipation vent 11 according to actual needs. This variability enables the air deflector 14 to not only perform the air guiding function, but also to avoid unnecessary obstruction of the heat dissipation vent 11 when air guiding is not required, thereby optimizing the overall thermal management strategy of the distribution cabinet 1000.

[0042] Please see Figure 5 , Figure 7 , Figure 8 This application further proposes that the bottom of the guide plate 14 is provided with a rotating shaft, the rotating shaft is rotatably disposed on the side plate 1, a torsion spring 15 is provided on the outside of the rotating shaft, a pushing block 16 is provided extending from the bottom of the guide plate 14, and a pushing member 621 is provided in the opening section 62. The pushing member 621 is used to push the pushing block 16 so that the guide plate 14 rotates along the rotating shaft so that the guide plate 14 changes from the closed state to the open state.

[0043] The push block 16 is a structure on the guide plate 14 used to receive external pushing force. It is usually a small protrusion or structure extending outward or downward from the bottom of the guide plate 14. Its shape and position are designed to effectively contact the pusher 621, so that the external mechanical force can be concentrated on a specific position of the guide plate 14, thereby efficiently driving the guide plate 14 to rotate around the axis. The pusher 621 is a mechanical component set on the opening section 62 of the adjusting plate 6. Its main function is to contact the push block 16 of the guide plate 14 and apply thrust. The pusher 621 can be in the form of a protrusion, rod, or slider, etc. Its position and stroke are precisely designed to ensure that when the opening section 62 of the adjusting plate 6 moves to align with the heat dissipation port 11, the pusher 621 can accurately contact the push block 16 and provide sufficient thrust to rotate the guide plate 14 from the closed state to the open state.

[0044] When the adjusting frame moves under the drive of the lifting device 7, causing the adjusting plate 6 to slide until the opening section 62 aligns with the heat dissipation vent 11, it is in a fully open state. If the adjusting frame continues to move, the pushing component 621 on the opening section 62 can precisely push the pushing block 16 at the bottom of the guide plate 14, driving the guide plate 14 to rotate along the shaft, changing it from a closed state to an open state. At this time, the opening end is still not disengaged from the heat dissipation vent 11. At this time, the cooling fan is turned on for rapid heat dissipation or water vapor discharge, which not only improves the heat dissipation efficiency and water vapor discharge capacity inside the distribution cabinet 1000, but also avoids the need for manual intervention, improving the system's intelligence and response speed.

[0045] Please see Figure 1 This application further proposes that the adjustment frame is provided with multiple handles 10 on its outer side, providing users with a convenient and labor-saving operating interface. Users can easily grasp the handles 10 and slide the adjustment frame to directly remove it.

[0046] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A power distribution cabinet, characterized in that, The power distribution cabinet includes: Two side panels, a bottom panel, a top panel, and a door panel are provided. The side panels, the bottom panel, the top panel, and the door panel enclose an installation space. A temperature and humidity monitoring device is provided in the installation space. The side panels have multiple heat dissipation vents. Multiple adjusting plates are arranged vertically to form an adjusting frame. The adjusting frame is slidably disposed on the outside of the side plate. Each adjusting plate is closely attached to a heat dissipation vent. Each adjusting plate includes a filter section, an open section, and a sealed section. The adjusting plate slides relative to the heat dissipation vent. When the filter section is disposed on the outside of the heat dissipation vent, it can prevent debris from entering. When the open section is disposed on the outside of the heat dissipation vent, it can directly connect the inside and outside to improve the heat dissipation effect. When the sealed section is disposed on the outside of the heat dissipation vent, it can seal the heat dissipation hole to prevent moisture from entering the interior.

2. The power distribution cabinet as described in claim 1, characterized in that, The distribution cabinet also includes a lifting device, which is used to drive the adjustment frame to rise and fall, and the temperature and humidity data detected by the temperature and humidity monitoring device is transmitted to the lifting device.

3. The power distribution cabinet as described in claim 1, characterized in that, The side plate has protruding retaining strips on both sides, and the cross-section of the retaining strips is hook-shaped to form retaining grooves. The two sides of the adjustment frame are respectively retained in the two retaining grooves.

4. The power distribution cabinet as described in claim 3, characterized in that, The adjusting frame has locking blocks on both sides, which are held in the slots. The slots have multiple clearance openings, and the adjusting frame is raised so that the locking blocks can be removed through the clearance openings.

5. The power distribution cabinet as described in claim 2, characterized in that, The base plate is equipped with a cooling fan, and the top plate has ventilation holes.

6. The power distribution cabinet as described in claim 5, characterized in that, A shield is provided above the top plate, which is used for sun and rain protection.

7. The power distribution cabinet as described in claim 5, characterized in that, The inner side of the side plate is provided with multiple guide plates, which are located on one side of the heat dissipation port. The guide plates are used to guide a portion of the air blown by the cooling fan to the heat dissipation port for dissipation, so as to improve the heat dissipation efficiency or expel water vapor.

8. The power distribution cabinet as described in claim 7, characterized in that, The guide plate has a closed state and an open state. When the guide plate is in the closed state, it is positioned above the heat dissipation vent to avoid blocking the heat dissipation of the vent. When the guide plate is in the open state, it is tilted from top to bottom to guide the air blowing from below to the heat dissipation vent.

9. The power distribution cabinet as described in claim 8, characterized in that, The bottom of the guide plate is provided with a rotating shaft, which is rotatably mounted on the side plate. A torsion spring is provided on the outside of the rotating shaft. A pushing block is extended from the bottom of the guide plate. A pushing member is provided in the opening section. The pushing member is used to push the pushing block so that the guide plate rotates along the rotating shaft, so that the guide plate changes from a closed state to an open state.

10. The power distribution cabinet as described in claim 1, characterized in that, The adjustment frame has multiple handles on its outer side.