Power cabinet anti-condensation shutter structure

Abstract

The utility model relates to a kind of electric power cabinet anti-condensation louver structure, including the window frame being installed on electric power cabinet, the two ends of window frame inside are respectively provided with hydrophobic louver structure and temperature control louver structure, and hydrophobic louver structure and temperature control louver structure are provided with condensing assembly between, hydrophobic louver structure is used to block rainwater and pour into electric power cabinet, temperature control louver structure is provided with electric control assembly, electric control assembly is used to control the opening angle of blade, hydrophobic louver structure is composed of multiple array arrangement's guide louver blade, guide louver blade and window frame are fixedly connected;The utility model is through hydrophobic louver structure and temperature control louver structure, while ensuring ventilation, prevent rainwater and pour into, while temperature control louver structure changes opening angle, changes opening size, when cabinet internal temperature is lower, close louver structure, block inside and outside air exchange, block the entry of external moisture, prevent the generation of condensation, improve practicality.

Description

Technical Field

[0001] This utility model relates to the field of power cabinet technology, specifically to a power cabinet anti-condensation louver structure. Background Technology

[0002] With the rapid development of power systems towards intelligence and distribution, power cabinets, as the core carrier of power distribution and equipment control, have expanded their application scenarios from traditional indoor substations to remote outdoor areas, underground pipe corridors, coastal high-humidity areas, and high-temperature and high-humidity workshops such as metallurgy and chemical industries.

[0003] Condensation in electrical cabinets is caused by the temperature and humidity difference between the inside and outside environments. When humid air from outside enters the cabinet, if it encounters low-temperature components (such as circuit breakers and cable joints), the gaseous water vapor in the air will quickly condense into liquid water and adhere to the surface of electrical components. Especially in humid or rainy environments, if rainwater enters through the ventilation openings of the electrical cabinet, it will further aggravate the condensation problem and pose a serious threat to the stable operation of electrical equipment.

[0004] However, existing anti-condensation measures for power cabinets are mainly passive protection, such as adding heating elements, exhaust fans, or ordinary louvers. While heating elements can increase the temperature inside the cabinet, they consume a lot of energy and can easily cause local overheating. Exhaust fans need to run continuously, and in high humidity environments, they can easily draw in humid air from outside, which can actually increase the risk of condensation. Ordinary louvers can only provide ventilation and rain protection, but cannot actively capture moisture, so their anti-condensation effect is limited. Based on this, we propose an anti-condensation louver structure for power cabinets to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an anti-condensation louver structure for power cabinets. This structure reduces condensation inside the power cabinet while providing ventilation, solving the problems of existing anti-condensation measures for power cabinets, which are mainly passive protection measures, such as adding heating elements, exhaust fans, or ordinary louvers. While heating elements can increase the temperature inside the cabinet, they consume a lot of energy and can easily lead to localized overheating. Exhaust fans need to run continuously, which can easily draw in humid air from outside into the cabinet in high humidity environments, thus exacerbating the risk of condensation. Ordinary louvers can only provide ventilation and rain protection, but cannot actively capture moisture, resulting in limited anti-condensation effects.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a power cabinet anti-condensation louver structure, including a window frame installed on the power cabinet, with a hydrophobic louver structure and a temperature-controlled louver structure respectively provided at both ends of the inner side of the window frame, and a condensation component provided between the hydrophobic louver structure and the temperature-controlled louver structure. The hydrophobic louver structure is used to prevent rainwater from entering the power cabinet, and the temperature-controlled louver structure includes a plurality of temperature-controlled louver blades arranged in an array and an electrical control component installed in the window frame. The temperature-controlled louver blades are all rotatably installed on the inner side of the window frame, and the electrical control component is used to control the opening and closing angle of the temperature-controlled louver blades.

[0007] The hydrophobic louver structure includes several arrayed flow guide louvers, all of which are fixedly connected to the window frame, and the surface of the flow guide louvers is coated with a hydrophobic coating.

[0008] Furthermore, the guide louvers have a Z-shaped bending structure, and the upper and lower ends of the guide louvers are respectively the upper hook and the lower hook. The upper hook and the lower hook of two adjacent guide louvers intersect to form a curved ventilation channel. The surface of the guide louvers forms a downward-sloping water guide groove, and a downward-sloping opening is formed between two adjacent guide louvers.

[0009] Furthermore, the hydrophobic coating of the guide louvers is a silane-based nano-hydrophobic coating.

[0010] It should be noted that the hydrophobic coating is applied using a spraying or coating process, which causes water droplets to form spherical shapes on the coating surface, making them less likely to wet and spread, thus effectively preventing rainwater from seeping into the electrical cabinet.

[0011] Furthermore, the temperature control louvers have an L-shaped structure, with a connecting piece fixedly connected to the inner side of the temperature control louvers. The upper end of the connecting piece is rotatably connected to the window frame via a connecting shaft, and the lower end of the temperature control louvers is attached to the outer surface of the adjacent temperature control louvers. A silicone sealing strip is provided on the attached end of the temperature control louvers.

[0012] Furthermore, the condensation assembly includes a spoiler fixedly installed inside the window frame. There are two spoilers, and a condensation plate is disposed between the two spoilers. The condensation plates are distributed at equal intervals.

[0013] It should be noted that the surface of the spoiler has evenly distributed ventilation holes. When air flows through the spoiler, it will slow down and disperse, making it easier for moisture in the air to condense on the spoiler. At the same time, there are drainage holes (not shown in the figure) at the bottom of the window frame and corresponding to the spoiler. The water droplets produced by condensation will naturally slide to the bottom and can be discharged through the drainage holes.

[0014] Furthermore, the condenser plate is made of copper, and the interior of the condenser plate has cavities arranged in a straight line, which are filled with a gel colloid composed of low-temperature gel and cold storage agent.

[0015] Furthermore, the electronic control component includes an electric push rod rotatably mounted on the top of the window frame. The output end of the electric push rod is movably connected to multiple temperature-controlled louvers via a linkage assembly. When the electric push rod extends, it pushes the multiple temperature-controlled louvers to flip outward synchronously, thereby increasing the opening gap between two adjacent temperature-controlled louvers. When the electric push rod retracts, the multiple temperature-controlled louvers flip inward synchronously, thereby decreasing the opening gap between two adjacent temperature-controlled louvers.

[0016] Furthermore, the linkage assembly includes a connecting rod mounted on the connecting plate and a lifting frame rotatably mounted on the output end of the electric push rod. One end of the connecting rod is rotatably connected to the connecting plate, and the connecting rod and the temperature control louvers correspond one-to-one. The other end of the connecting rod is rotatably connected to both ends of the lifting frame. The surface of the spoiler is provided with a guide rail, and the lifting frame is slidably connected to the spoiler through the guide rail. When the electric push rod extends or retracts, the lifting frame moves upward or downward along the direction of the guide rail.

[0017] It is important to note that, to achieve precise control of the opening and closing angle of the temperature-controlled louvers by the electric actuator and to adapt to the temperature and humidity sensor, we adopt the following control scheme: First, the temperature and humidity sensor is installed inside the power cabinet or near the window frame to monitor changes in temperature and humidity inside the cabinet in real time. Then, the signal from the temperature and humidity sensor is input to the controller. Based on preset temperature and humidity thresholds and a control algorithm, the controller calculates the extension and retraction amount of the electric actuator. Finally, the controller sends a control signal to the electric actuator through the drive circuit, causing it to extend and retract according to the calculated amount, thereby adjusting the opening and closing angle of the temperature-controlled louvers and achieving the purpose of regulating the temperature and humidity inside the power cabinet.

[0018] In practice, the correlation between temperature and humidity sensor signals and the extension / retraction of the electric actuator can be established through programming or setting controller parameters. Furthermore, different control modes and parameters can be set as needed to meet the requirements of different environments.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0020] 1. The anti-condensation louver structure of this power cabinet, through the hydrophobic louver structure and the temperature-controlled louver structure, ensures ventilation while preventing rainwater from entering. At the same time, the temperature-controlled louver structure changes the opening angle and opening size. When the internal temperature of the cabinet is low, the louver structure closes to block the exchange of air between the inside and outside and prevent the entry of external moisture, thus preventing condensation and improving practicality.

[0021] 2. The anti-condensation louver structure of this power cabinet, through the cooperation of the baffle and the condensation plate, can condense the water vapor in the humid air entering the power cabinet into water droplets and discharge them outside the cabinet, thereby actively capturing and removing water vapor, achieving moisture prevention while reducing the amount of water vapor inside the cabinet and reducing the possibility of condensation.

[0022] 3. The anti-condensation louver structure of this power cabinet uses an electric push rod to move the lifting frame, which can drive multiple temperature-controlled louvers to rotate and adapt to the external humidity and the internal temperature of the power cabinet for automatic control. While adjusting the ventilation volume, it avoids the risk of condensation being aggravated by excessive ventilation in high humidity environments. Attached Figure Description

[0023] Figure 1 The diagram shown is a side view sectional view of the present invention.

[0024] Figure 2 The diagram shown is a schematic representation of the installation structure of this utility model.

[0025] Figure 3 The diagram shown is a schematic diagram of the flow guide louver structure of this utility model;

[0026] Figure 4 The diagram shown is a top view cross-sectional view of the present invention.

[0027] Figure 5 This utility model is shown. Figure 4 Enlarged structural diagram at point A in the middle;

[0028] Figure 6 The diagram shown is a schematic representation of the lifting frame structure of this utility model.

[0029] Figure 7 The diagram shown is a schematic of the guide rail structure of this utility model.

[0030] Explanation of reference numerals in the attached drawings: 1. Window frame; 2. Air deflector louvers; 3. Temperature control louvers; 4. Spoiler; 5. Condensation plate; 6. Electric push rod; 61. Connecting rod; 62. Lifting frame. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-7 This embodiment of an anti-condensation louver structure for a power cabinet includes a window frame 1 installed on the power cabinet. A hydrophobic louver structure and a temperature-controlled louver structure are respectively provided at both ends of the inner side of the window frame 1. A condensation assembly is provided between the hydrophobic louver structure and the temperature-controlled louver structure. The hydrophobic louver structure is used to prevent rainwater from entering the power cabinet. The temperature-controlled louver structure includes several arrayed temperature-controlled louver blades 3 and an electrical control assembly installed inside the window frame 1. The temperature-controlled louver blades 3 are all rotatably installed inside the window frame 1. The electrical control assembly is used to control the opening and closing angle of the temperature-controlled louver blades 3. The hydrophobic louver structure includes several arrayed flow-guiding louver blades 2. The flow-guiding louver blades 2 are all fixedly connected to the window frame 1, and the surface of the flow-guiding louver blades 2 is coated with a hydrophobic coating.

[0033] In this embodiment, the guide louver 2 has a Z-shaped bending structure, and the upper and lower ends of the guide louver 2 are respectively the upper hook and the lower hook. The upper hook and the lower hook of two adjacent guide louver 2 intersect to form a curved ventilation channel. The surface of the guide louver 2 forms a downward inclined water guide groove, and a downward inclined opening is formed between two adjacent guide louver 2. The hydrophobic coating of the guide louver 2 is a silane-based nano hydrophobic coating. The coating thickness is strictly controlled at 8–10 μm. The surface is constructed with a micro-nano double rough structure (micron-level protrusion height 5–8 μm, nano-level pore diameter 50–100 nm). The coating contact angle is ≥160°, the roll-off angle is ≤5°, and photocatalytic titanium dioxide particles (accounting for 3%) are added. Under sunlight, it can decompose organic pollutants and maintain long-term hydrophobicity.

[0034] It should be noted that the Z-shaped bending structure of the guide louver 2, forming a downward-sloping water guide channel design, can more effectively guide rainwater to flow away in a specific direction, preventing rainwater from accumulating on the louver structure, thereby further enhancing its water-repellent performance. In addition, the overlapping of the hooks forms a curved airflow channel, which, while achieving water blocking, initially slows down the airflow speed.

[0035] Please see Figure 1 , Figure 4 and Figure 6 In this embodiment, the temperature control louver 3 has an L-shaped structure. A connecting piece is fixedly connected to the inner side of the temperature control louver 3. The upper end of the connecting piece is rotatably connected to the window frame 1 through a connecting shaft. The lower end of the temperature control louver 3 is attached to the outer surface of the adjacent temperature control louver 3. A silicone sealing strip is provided on the attached end of the temperature control louver 3.

[0036] It should be noted that the mutual contact of the temperature control louvers 3 forms a seal, effectively preventing the infiltration of external air or water vapor. The outer guide louvers 2 form a curved upward airflow channel, while the channel between the inner temperature control louvers 3 is a downward guide, which makes the airflow stay in the middle for a longer time and forms a complex curved flow channel.

[0037] It is worth noting that the temperature-controlled louver 3 breaks through the traditional planar overlapping sealing design and innovatively adopts a "hook-type nesting and elastic compensation" structure. A 0.3mm thick hollow silicone sealing strip is set on the inner side of the lower end of the blade. When the blade is closed, the hook part of the adjacent blade forms a mechanical lock. The sealing strip is squeezed and produces a 2mm elastic deformation. With the adaptive adjustment function of the dual-axis hinge, it can still maintain zero leakage within the ±3mm installation error range. Compared with the existing technology of straight contact of rubber strip (such as patent CN204885940U), the sealing contact area is increased by 3 times. It can still block 99.9% of water vapor penetration under level 8 wind pressure.

[0038] Please see Figure 1 , Figure 4 and Figure 5 In this embodiment, the condensation assembly includes a baffle 4 fixedly installed inside the window frame 1. There are two baffles 4, and a condensation plate 5 is disposed between the two baffles 4. The condensation plates 5 are evenly distributed and are made of copper. The condensation plates 5 have cavities arranged in a straight line inside, and the cavities are filled with a gel colloid composed of low-temperature gel and cold storage agent.

[0039] It should be noted that when air circulates, it is slowed down by the baffle 4, thus better discharging heat from the condenser plate 5. The copper material of the condenser plate 5 improves heat exchange efficiency. When water vapor in the air passes through the condenser plate 5, and the temperature difference is large, the water vapor condenses on the condenser plate 5, thereby reducing the amount of water vapor entering the power cabinet. This achieves a flow rate of 8 g / h·m³ at 35℃ / 90% humidity. 2 With its high water vapor condensation rate, this design breaks through the limitations of traditional passive ventilation by maintaining a continuous low temperature through the release of latent heat from phase change materials, thus solving the technical problem of repeated condensation formation in low-temperature environments at night.

[0040] Please see Figure 1 and Figure 6 , Figure 7 In this embodiment, the electronic control component includes an electric push rod 6 rotatably mounted on the top of the window frame 1. The output end of the electric push rod 6 is movably connected to multiple temperature-controlled louvers 3 via a connecting rod assembly. When the electric push rod 6 extends, it pushes the multiple temperature-controlled louvers 3 to flip outward synchronously, increasing the opening gap between two adjacent temperature-controlled louvers 3. When the electric push rod 6 retracts, the multiple temperature-controlled louvers 3 flip inward synchronously, decreasing the opening gap between two adjacent temperature-controlled louvers 3. The connecting rod assembly includes a connecting rod 61 mounted on a connecting piece and a lifting frame 62 rotatably mounted on the output end of the electric push rod 6. One end of the connecting rod 61 is rotatably connected to the connecting piece, and the connecting rod 61 corresponds one-to-one with the temperature-controlled louvers 3. The other end of the connecting rod 61 is rotatably connected to both ends of the lifting frame 62. The surface of the spoiler 4 is provided with a guide rail, and the lifting frame 62 is slidably connected to the spoiler 4 via the guide rail. When the electric push rod 6 extends or retracts, the lifting frame 62 moves upward or downward along the direction of the guide rail.

[0041] It should be noted that the combined use of the electric push rod 6 and the connecting rod assembly enables precise control of the opening and closing angle of the temperature-controlled louver 3, driving the lifting frame 62 to achieve a displacement accuracy of 0.1mm. Combined with the one-to-one correspondence between the connecting rod 61 and the temperature-controlled louver 3 in the connecting rod assembly, all blades can be synchronously driven to complete a 0-90° stepless rotation, changing the gap opening range between adjacent blades from 0.5-15mm. The connecting rod assembly has a built-in torque sensor that monitors the blade contact pressure in real time (set threshold 5-8N). When the system detects that the silicone sealing strip is aging and causing pressure decay, it automatically compensates for the opening and closing angle, maintaining a sealing performance retention rate of over 90%. It is adaptable to various temperature and humidity conditions. The temperature sensor forms a closed-loop control logic. When the internal temperature of the power cabinet is below 15°C and the humidity is above 75%, the electric push rod 6 drives the blades to close at a speed of 2° / s, achieving micron-level sealing through a reverse nesting structure. When the internal temperature is above 35°C, it automatically opens to a 45° ventilation angle, working with the condensation component to guide directional airflow. This provides better ventilation efficiency and a larger opening angle than traditional fixed louvers. It not only achieves an angle control accuracy of ±0.5°, but also extends the service life of the sealing strip to 8 years through a torque feedback mechanism. It maintains stable operation in environments ranging from -30°C to 55°C, achieving multiple protection functions including anti-condensation, dustproof, moistureproof, and intelligent temperature control.

[0042] The working principle of the above embodiments is as follows:

[0043] First, multiple Z-shaped bent louvers 2 form a curved air intake channel, which is inclined upwards, allowing airflow to enter while blocking rainwater and dust from entering. The surface of the louvers 2 is coated with a hydrophobic coating to prevent water adsorption, so that rainwater / condensate can quickly gather into water droplets under the action of the hydrophobic coating and flow out along the water guide channel, without being retained or seeping in.

[0044] Secondly, the temperature-controlled louver 3 can be opened and closed to adapt to temperature changes and control the ventilation of the louver. When the temperature inside the power cabinet is low, the temperature-controlled louver 3 is driven by the electric push rod 6 to flip and close the louver, so that the outside high-temperature air cannot enter and also blocks the entry of water vapor.

[0045] Furthermore, during daily ventilation, when external moisture enters, the baffle 4 reduces the wind speed, allowing the air to better contact the condenser plate 5. The copper material of the condenser plate 5 has good heat exchange performance, enabling heat exchange during ventilation. It is also compatible with the internal low-temperature filling gel, which can effectively reduce the surface temperature of the condenser plate 5. When the moisture is removed, condensation is more likely to occur, thereby reducing the amount of moisture entering the power cabinet and reducing condensation.

[0046] In summary, the anti-condensation louver structure of the power cabinet in this embodiment effectively prevents rainwater from entering, blocks the penetration of external air or water vapor, and condenses water vapor in the air through the synergistic effect of the hydrophobic louver structure, the temperature-controlled louver structure, the condensation component, and the electrical control component. By precisely controlling the opening and closing angle of the temperature-controlled louver 3, temperature and humidity regulation is achieved, ensuring the normal operation of the power cabinet. In extreme weather, the louvers not only effectively prevent condensation but also actively regulate the microclimate, reduce energy consumption, and unexpectedly improve the overall structural strength and fatigue resistance of the power cabinet.

[0047] It should be noted that the control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. The power supply is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail here.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A condensation-preventing shutter structure for an electric power cabinet, comprising a window frame (1) installed on the electric power cabinet, characterized in that: The inner sides of the window frame (1) are respectively provided with a water-repellent louver structure and a temperature-controlled louver structure, and a condensation component is provided between the water-repellent louver structure and the temperature-controlled louver structure. The water-repellent louver structure is used to prevent rainwater from entering the power cabinet. The temperature-controlled louver structure includes several arrayed temperature-controlled louver blades (3) and an electrical control component installed in the window frame (1). The temperature-controlled louver blades (3) are all rotatably installed on the inner side of the window frame (1). The electrical control component is used to control the opening and closing angle of the temperature-controlled louver blades (3). The hydrophobic louver structure includes several arrayed flow guide louvers (2), all of which are fixedly connected to the window frame (1), and the surface of the flow guide louvers (2) is coated with a hydrophobic coating.

2. The anti-condensation louver structure for an electrical cabinet according to claim 1, wherein: The guide louver (2) has a Z-shaped bending structure, and the upper and lower ends of the guide louver (2) are the upper hook and the lower hook, respectively. The upper hook and the lower hook of two adjacent guide louvers (2) intersect to form a curved ventilation channel. The surface of the guide louver (2) forms a downward inclined water guide groove, and a downward inclined opening is formed between two adjacent guide louvers (2).

3. The anti-condensation louver structure for an electrical cabinet according to claim 1, wherein: The hydrophobic coating of the guide vane (2) is a gas silane-based nano-hydrophobic coating.

4. The anti-condensation louver structure for a power cabinet according to claim 1, characterized in that: The temperature control louver (3) has an L-shaped structure. A connecting piece is fixedly connected to the inner side of the temperature control louver (3). The upper end of the connecting piece is rotatably connected to the window frame (1) through a connecting shaft. The lower end of the temperature control louver (3) is attached to the outer surface of the adjacent temperature control louver (3). A silicone sealing strip is provided on the attached end of the temperature control louver (3).

5. The anti-condensation louver structure for a power cabinet according to claim 4, characterized in that: The condensation assembly includes a spoiler (4) fixedly installed inside the window frame (1). There are two spoilers (4), and a condensation plate (5) is provided between the two spoilers (4). The condensation plates (5) are distributed at equal intervals.

6. The anti-condensation louver structure for an electrical power cabinet according to claim 5, characterized in that: The condenser plate (5) is made of copper. The interior of the condenser plate (5) has cavities arranged in a straight line, and the cavities are filled with a gel colloid composed of low-temperature gel and cold storage agent.

7. The anti-condensation louver structure for an electrical power cabinet according to claim 6, characterized in that: The electronic control assembly includes an electric push rod (6) that is rotatably mounted on the top of the window frame (1). The output end of the electric push rod (6) is movably connected to multiple temperature-controlled louvers (3) through a linkage assembly. When the electric push rod (6) extends, it pushes the multiple temperature-controlled louvers (3) to flip outward synchronously, thereby increasing the opening gap between two adjacent temperature-controlled louvers (3). When the electric push rod (6) retracts, the multiple temperature-controlled louvers (3) flip inward synchronously, thereby decreasing the opening gap between two adjacent temperature-controlled louvers (3).

8. The anti-condensation louver structure for a power cabinet according to claim 7, characterized in that: The linkage assembly includes a connecting rod (61) mounted on a connecting plate and a lifting frame (62) rotatably mounted on the output end of an electric push rod (6). One end of the connecting rod (61) is rotatably connected to the connecting plate. The connecting rod (61) corresponds one-to-one with the temperature control louvers (3), and the other end of the connecting rod (61) is rotatably connected to both ends of the lifting frame (62). The surface of the spoiler (4) is provided with a guide rail. The lifting frame (62) is slidably connected to the spoiler (4) through the guide rail. When the electric push rod (6) extends or retracts, the lifting frame (62) moves upward or downward along the direction of the guide rail.

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