Ventilated guard and switchgear
Patent Information
- Application Number
- CN202522116185.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-30
AI Technical Summary
[0004]本申请的目的是提供一种通风防护装置和开关柜，旨在解决现有开关柜的通风结构难以兼顾有效通风与满足IP防护等级的双重要求的技术问题
[0019] The technical solution of this application forms a transition cavity by enclosing a support section and a transition section. The support section is connected to the switchgear door, and the transition section has transition holes along the axis of the ventilation device. A protective net is installed on the side of the transition section away from the transition cavity, which can meet the IP protection level requirements. The protective net, under the isolation effect of the transition cavity, fits with the ventilation device with a gap, which can improve the ventilation efficiency of the switchgear. This technical solution not only meets the protection level requirements but also effectively improves the ventilation efficiency, taking into account both the dual requirements of effective ventilation and IP protection level.
Smart Images
Figure CN224721449U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power equipment technology, and in particular to a ventilation and protection device and a switch cabinet. Background Technology
[0002] In power systems, switchgear is a crucial component for protecting and controlling electrical equipment, and ventilation design is a vital factor in ensuring its normal operation and heat dissipation. Traditional switchgear ventilation designs typically achieve airflow by creating louvered ventilation openings in the cabinet doors. However, the design of these openings must not only consider ventilation efficiency but also meet the IP protection rating requirements of the cabinet, i.e., its ability to protect against solid foreign objects and liquids. Therefore, conventional designs incorporate louvered openings in the cabinet doors, with fixed ventilation screens affixed around the openings to meet the protection rating requirements. These screens effectively prevent solid foreign objects and liquids from entering the cabinet, thus ensuring its airtightness and safety.
[0003] However, traditional screen mesh designs are usually flush against the cabinet door, allowing only the area with louvered openings to ventilate effectively. The remaining areas are covered by the screen mesh, restricting airflow and preventing the ventilation holes from functioning properly, thus affecting the cabinet's heat dissipation efficiency. Utility Model Content
[0004] The purpose of this application is to provide a ventilation protection device and switch cabinet, which aims to solve the technical problem that the ventilation structure of existing switch cabinets is difficult to simultaneously achieve effective ventilation and meet the dual requirements of IP protection level.
[0005] To achieve the above objectives, this application proposes a ventilation protection device, which includes:
[0006] Switch cabinet door and ventilation device installed on the switch cabinet door;
[0007] A transition device, comprising a support portion and a transition portion, wherein the support portion and the transition portion enclose a transition cavity, the support portion is connected to the switch cabinet door, and the transition portion has a transition hole along the axial direction of the ventilation device;
[0008] A protective net is provided on the side of the transition section away from the transition cavity, and the protective net is in clearance fit with the ventilation device under the isolation effect of the transition cavity.
[0009] In one embodiment, the number of ventilation devices is four, the number of transition devices is at least two, and at least two of the transition devices are clearance-fitted with any two of the four ventilation devices.
[0010] In one embodiment, the number of transition devices is four, and the four transition devices are respectively fitted with the four ventilation devices with clearance.
[0011] In one embodiment, the diameter of the transition hole is not less than the effective ventilation area of the ventilation device.
[0012] In one embodiment, the transition hole is rectangular in shape, and the area of the rectangle is not less than the effective ventilation area of the ventilation device.
[0013] In one embodiment, the transition hole is elliptical, and the area of the ellipse is not less than the effective ventilation area of the ventilation device.
[0014] In one embodiment, the ventilation device includes a ventilation hole and an adjustment part for adjusting the airflow direction, the adjustment part being movably connected to the edge of the ventilation hole.
[0015] In one embodiment, the switch cabinet door includes a first cabinet surface and a second cabinet surface, the ventilation direction of the ventilation hole is towards the first cabinet surface, the adjustment part is located on the first cabinet surface, and the second cabinet surface is connected to the support part.
[0016] In one embodiment, the support portion is connected to the second cabinet surface by welding.
[0017] In addition, to achieve the above objectives, this application also proposes a switch cabinet, which includes the ventilation and protection device as described above.
[0018] The above-mentioned technical solution of this application has at least the following beneficial technical effects:
[0019] The technical solution of this application forms a transition cavity by enclosing a support section and a transition section. The support section is connected to the switchgear door, and the transition section has transition holes along the axis of the ventilation device. A protective net is installed on the side of the transition section away from the transition cavity, which can meet the IP protection level requirements. The protective net, under the isolation effect of the transition cavity, fits with the ventilation device with a gap, which can improve the ventilation efficiency of the switchgear. This technical solution not only meets the protection level requirements but also effectively improves the ventilation efficiency, taking into account both the dual requirements of effective ventilation and IP protection level. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the first cabinet structure of the ventilation and protection device provided in this application;
[0021] Figure 2 This is a schematic diagram of an embodiment of the transition device of the ventilation and protection device provided in this application;
[0022] Figure 3This is a schematic diagram of another embodiment of the transition device of the ventilation and protection device provided in this application;
[0023] Figure 4 This is a partial side view of an embodiment of the switchgear provided in this application.
[0024] Figure label:
[0025] 100. Switch cabinet door; 110. First cabinet front; 120. Second cabinet front; 200. Ventilation device; 210. Ventilation hole; 220. Adjustment unit; 300. Transition device; 310. Support unit; 320. Transition unit; 330. Transition hole; 400. Protective net. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this application. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concepts of this application.
[0027] The embodiments described in this application are only a part of the embodiments of this application, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. In the description of this application, it should be noted that the terms "first" and "second" are not to be construed as indicating or implying relative importance.
[0028] In power systems, switchgear is a crucial component for protecting and controlling electrical equipment, and ventilation design is a vital factor in ensuring its normal operation and heat dissipation. Traditional switchgear ventilation designs typically achieve airflow by creating louvered ventilation openings in the cabinet doors. However, the design of these openings must not only consider ventilation efficiency but also meet the IP protection rating requirements of the cabinet, i.e., its ability to protect against solid foreign objects and liquids. Therefore, conventional designs incorporate louvered openings in the cabinet doors, with fixed ventilation screens affixed around the openings to meet the protection rating requirements. These screens effectively prevent solid foreign objects and liquids from entering the cabinet, thus ensuring its airtightness and safety.
[0029] However, traditional screen mesh designs are usually flush against the cabinet door, allowing only the area with louvered openings to ventilate effectively. The remaining areas are covered by the screen mesh, restricting airflow and preventing the ventilation holes from functioning properly, thus affecting the cabinet's heat dissipation efficiency.
[0030] To address the aforementioned technical problems, this application proposes a ventilation and protection device. Please refer to [link / reference needed]. Figures 1 to 4In one embodiment of this application, the ventilation and protection device includes a switch cabinet door 100, a ventilation device 200, a protective net 400, and a transition device 300. The ventilation device 200 is installed on the switch cabinet door 100. The transition device 300 includes a support portion 310 and a transition portion 320, which together form a transition cavity. The support portion 310 is connected to the switch cabinet door 100. The transition portion 320 has a transition hole 330 along the axial direction of the ventilation device 200. The protective net 400 is disposed on the side of the transition portion 320 away from the transition cavity, and the protective net 400 is in clearance fit with the ventilation device 200 under the isolation effect of the transition cavity.
[0031] The technical solution of this application forms a transition cavity by enclosing a support part 310 and a transition part 320. The support part 310 is connected to the switch cabinet door 100. The transition part 320 has a transition hole 330 along the axis of the ventilation device 200. A protective net 400 is set on the side of the transition part 320 away from the transition cavity, which can meet the requirements of IP protection level. Under the isolation effect of the transition cavity, the protective net 400 fits with the ventilation device 200 with a gap, which can improve the ventilation efficiency of the switch cabinet. This technical solution not only meets the protection level requirements, but also effectively improves the ventilation efficiency, taking into account the dual requirements of effective ventilation and IP protection level.
[0032] Please see Figure 2 In one embodiment, the number of ventilation devices 200 is four, and the number of transition devices 300 is at least two, with at least two transition devices 300 having a clearance fit with any two of the four ventilation devices 200. This embodiment, by setting four ventilation devices 200 and at least two transition devices 300, ensures a clearance fit between the multiple ventilation devices 200 and the transition devices 300, optimizing the airflow path and effectively improving the heat dissipation efficiency of the cabinet. The design of multiple transition devices 300 further enhances the ventilation effect and, while ensuring protective performance, prevents the entry of external pollutants, improving the stability and safety of the system. By rationally configuring the number and matching method of the ventilation and transition devices 300, the heat dissipation and protection requirements of the switchgear in complex working environments are fully met.
[0033] Please see Figure 3In one embodiment, four transition devices 300 are provided, each of which is fitted with one of four ventilation devices 200 with a clearance fit. This embodiment ensures that each transition device 300 corresponds to one ventilation device 200 through the precise fit between the four transition devices 300 and the four ventilation devices 200, optimizing airflow and heat dissipation paths and significantly improving the ventilation efficiency of the cabinet. The one-to-one correspondence between the four transition devices 300 and the ventilation devices 200 ensures balanced heat dissipation and efficient system operation, while preventing external debris from entering the cabinet, enhancing its protective capabilities and improving the safety and stability of the equipment.
[0034] Please see Figure 2 and Figure 3 In one embodiment, the diameter of the transition hole 330 is not less than the effective ventilation area of the ventilation device 200. This embodiment ensures unobstructed airflow through the ventilation device 200 by setting the diameter of the transition hole 330 to be no less than the effective ventilation area of the ventilation device 200, further improving the ventilation efficiency of the cabinet. The reasonable design of the hole diameter maximizes the ventilation function of the transition hole 330, effectively reducing the internal temperature of the cabinet and preventing equipment malfunctions due to overheating. Simultaneously, it ensures the required protection level, preventing external debris from entering the cabinet and enhancing the safety and stability of the switchgear.
[0035] Please see Figure 2 and Figure 3 In one embodiment, the transition hole 330 is rectangular in shape, and the area of the rectangle is not less than the effective ventilation area of the ventilation device 200. This embodiment optimizes airflow efficiency by designing the transition hole 330 as a rectangle and ensuring that its area is not less than the effective ventilation area of the ventilation device 200. The rectangular hole design helps to form a more uniform airflow distribution, allowing air to flow more smoothly through the entire cabinet, thereby effectively reducing the temperature inside the cabinet and enhancing heat dissipation performance. At the same time, ensuring that the area of the transition hole 330 is not less than the effective ventilation area of the ventilation device 200 ensures that the function of the ventilation device 200 is not limited, further improving the efficiency of the overall ventilation system. In addition, the shape and size design of the rectangular hole also helps to prevent external debris from entering the cabinet, ensuring the safety and stability of equipment operation.
[0036] Please see Figure 2 and Figure 3In one embodiment, the transition hole 330 is elliptical, and the area of the ellipse is not less than the effective ventilation area of the ventilation device 200. This embodiment further optimizes the airflow path and heat dissipation performance by designing the transition hole 330 as elliptical and ensuring that the area of the ellipse is not less than the effective ventilation area of the ventilation device 200. Compared to other shapes, the elliptical hole can guide airflow more smoothly, reducing airflow resistance, thereby improving airflow efficiency, facilitating rapid heat dissipation, and lowering the temperature inside the cabinet. Furthermore, ensuring that the area of the elliptical hole is not less than the effective ventilation area of the ventilation device 200 avoids insufficient ventilation capacity, ensuring that the effect of the ventilation device 200 is not limited, and improving the overall system's heat dissipation efficiency. The elliptical design also helps reduce interference in airflow, further optimizing the ventilation effect. Simultaneously, this shape effectively prevents external debris from entering the cabinet, ensuring safe operation of the equipment and improving the stability and reliability of the system.
[0037] Please see Figure 2 In one embodiment, the ventilation device 200 includes a ventilation hole 210 and an adjustment part 220 for adjusting the airflow direction, the adjustment part 220 being movably connected to the edge of the ventilation hole 210. This embodiment, by having the adjustment part 220 of the ventilation device 200 movably connected to the edge of the ventilation hole 210, allows for flexible adjustment of the airflow direction, ensuring that the airflow more accurately covers the area requiring heat dissipation, optimizing the equipment's heat dissipation efficiency, and preventing localized overheating. By adjusting the airflow direction, the ventilation effect can also be dynamically adjusted according to changes in ambient temperature and equipment load, improving the stability and service life of the equipment. This design increases the system's adaptability, enabling the ventilation device 200 to maintain optimal heat dissipation performance under different operating conditions, further improving equipment safety and reducing the risk of failure due to poor heat dissipation.
[0038] Please see Figure 1 and Figure 2In one embodiment, the switch cabinet door 100 includes a first cabinet surface 110 and a second cabinet surface 120. The first cabinet surface 110 is the outer side of the switch cabinet, and the second cabinet surface 120 is the inner side of the switch cabinet. The ventilation hole 210 faces the first cabinet surface 110, the adjustment part 220 is located on the first cabinet surface 110, and the second cabinet surface 120 is connected to the support part 310. This embodiment, by designing the switch cabinet door 100 to include a first cabinet surface 110 and a second cabinet surface 120, with the ventilation hole 210 facing the first cabinet surface 110 and the adjustment part 220 located on the first cabinet surface 110, can effectively guide airflow towards the area inside the cabinet that needs heat dissipation. At the same time, the adjustment part 220 enables precise control of the airflow direction, improving the ventilation effect. The design of the second cabinet surface 120 being connected to the support part 310 enhances the stability of the cabinet door, preventing deformation or loosening during use and ensuring the overall structural strength of the cabinet. This design not only optimizes the airflow path and enhances heat dissipation performance, but also improves the reliability of the switch cabinet and extends the service life of the equipment.
[0039] Please see Figure 1 and Figure 2 In one embodiment, the support portion 310 is connected to the second cabinet surface 120 by welding. This embodiment enhances the structural stability and durability of the switch cabinet door 100 by welding the support portion 310 to the second cabinet surface 120, ensuring that the door is less prone to loosening or deformation during long-term use and providing stronger support. The welding connection method offers high strength and high reliability, helping to improve the overall cabinet's compressive strength and preventing damage due to external forces or improper operation, thereby extending the equipment's service life and safety.
[0040] This application also proposes a switch cabinet, which includes the above-mentioned ventilation and protection device. The specific structure of the ventilation and protection device is as described in the above embodiments. Since this switch cabinet adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0041] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this application and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this application should be included within the protection scope of this application. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. A ventilation and protection device, characterized in that, include: Switch cabinet door and ventilation device installed on the switch cabinet door; A transition device, comprising a support portion and a transition portion, wherein the support portion and the transition portion enclose a transition cavity, the support portion is connected to the switch cabinet door, and the transition portion has a transition hole along the axial direction of the ventilation device; A protective net is provided on the side of the transition section away from the transition cavity, and the protective net is in clearance fit with the ventilation device under the isolation effect of the transition cavity.
2. The ventilation and protection device according to claim 1, characterized in that, The number of ventilation devices is four, the number of transition devices is at least two, and at least two of the transition devices are clearance-fitted with any two of the four ventilation devices.
3. The ventilation and protection device according to claim 2, characterized in that, The number of transition devices is four, and the four transition devices are respectively fitted with the four ventilation devices with clearance.
4. The ventilation and protection device according to claim 1, characterized in that, The diameter of the transition hole is not less than the effective ventilation area of the ventilation device.
5. The ventilation and protection device according to claim 4, characterized in that, The transition hole is rectangular in shape, and the area of the rectangle is not less than the effective ventilation area of the ventilation device.
6. The ventilation and protection device according to claim 4, characterized in that, The transition hole is elliptical, and the area of the ellipse is not less than the effective ventilation area of the ventilation device.
7. The ventilation and protection device according to claim 1, characterized in that, The ventilation device includes a ventilation hole and an adjustment part for adjusting the airflow direction, the adjustment part being movably connected to the edge of the ventilation hole.
8. The ventilation and protection device according to claim 7, characterized in that, The switch cabinet door includes a first cabinet surface and a second cabinet surface. The ventilation direction of the ventilation hole is towards the first cabinet surface. The adjustment part is located on the first cabinet surface. The second cabinet surface is connected to the support part.
9. The ventilation and protection device according to claim 8, characterized in that, The support part is connected to the second cabinet surface by welding.
10. A switch cabinet, characterized in that, The switch cabinet includes a ventilation and protection device as described in any one of claims 1 to 9.