Electrical equipment cabinet with high protection grade
By adopting a double-door sealing structure and a water-blocking strip drainage design in large outdoor electrical equipment cabinets, the problem of weak waterproofing caused by the width of the cabinet is solved, and a high-protection level sealing effect for electrical equipment cabinets is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN HANGDIAN MICRO ENERGY CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-05-12
AI Technical Summary
Large outdoor electrical equipment cabinets cannot be effectively sealed with a single door due to the width of the cabinet, resulting in weak waterproofing and affecting the protection level of the equipment.
It adopts a double-door sealing structure, including a secondary cabinet door and a main cabinet door set on the left and right. The secondary cabinet door has a press-fit sealing structure on the side, and the main cabinet door has a rubber strip groove on the side. When the two doors are closed, the press-fit sealing structure of the secondary cabinet door is pressed into the rubber strip groove. A water-blocking strip and drainage structure are set in the middle of the top cover of the sealed chamber, and the locking ability is improved in conjunction with the lock cylinder tightening device.
It effectively improves the protection level of the electrical cabinet, especially its waterproof performance, protects the weak points of the cabinet door, and enhances the overall sealing effect.
Smart Images

Figure CN224233991U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical equipment protection, and in particular to a high-protection-level electrical equipment cabinet. Background Technology
[0002] In recent years, various new energy equipment have been developed rapidly. The installation environment is relatively complex, and temperature differences and rain erosion have a significant impact on the overall equipment performance. High-protection-level electrical equipment cabinets offer advantages such as high reliability and flexibility. Therefore, high-protection-level electrical equipment cabinets are currently the main design direction for outdoor products. Utility Model Content
[0003] To address the issue of large outdoor electrical equipment cabinets where a single door cannot be used for sealing due to cabinet width limitations, a high-protection-level electrical equipment cabinet is provided. This cabinet features a double-door sealing structure and a special structural design to ensure strong protection in vulnerable areas such as door joints.
[0004] The technical solution adopted by this utility model is as follows: a high-protection-level electrical equipment cabinet, the cabinet being divided into upper and lower parts: an open compartment and a sealed compartment.
[0005] The open compartment is used to install heat exchange equipment, and air inlet filters are installed at the front and rear of the open compartment cabinet.
[0006] The sealed compartment is used to install electrical equipment. The sealed compartment adopts a cabinet door design with two doors that open opposite each other, including a secondary cabinet door and a main cabinet door set on the left and right sides. The secondary cabinet door has a press-fit sealing structure on its side. The main cabinet door has a rubber strip groove on its side, and a sealing rubber strip is set in the rubber strip groove. When both doors are closed, the press-fit sealing structure of the secondary cabinet door is pressed into the rubber strip groove of the main cabinet door.
[0007] A water-blocking strip is provided in the middle of the top cover of the sealed compartment to drain water from the sides above the cabinet door.
[0008] As a preferred embodiment, the water-blocking strip and the cabinet form a trough structure, and the two sides of the trough structure are used for drainage.
[0009] As a preferred embodiment, the bottom inner side of the air inlet filter screen is provided with a water-blocking structure and a drainage structure to guide the water flow entering the air inlet filter screen.
[0010] As a preferred embodiment, the drainage structure cooperates with the tank structure to discharge water into the tank structure.
[0011] As a preferred embodiment, the secondary cabinet door also includes a baffle structure with a sealing strip on the inner side. When both doors are closed, the sealing strip of the secondary cabinet door baffle structure is tightly attached to the main cabinet door for external sealing between the two doors.
[0012] As a preferred embodiment, the main cabinet door and the secondary cabinet door are respectively equipped with a first handle lock and a second handle lock, and a lock cylinder tightening device is provided in the sealed compartment. When the two doors are closed, the lock cylinders of the first handle lock and the second handle lock are respectively embedded in the lock cylinder tightening device to complete the fixation.
[0013] As a preferred embodiment, the lock cylinder tightening device is mounted on the electrical equipment mounting rack inside the sealed chamber, and is positioned between the first handle lock and the second handle lock.
[0014] As a preferred embodiment, the size of the sealing strip in the sealing strip groove is the same as the size of the sealing strip groove.
[0015] As a preferred embodiment, the size of the sealing strip of the baffle structure is the same as the size of the baffle structure.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. A high-protection-level electrical equipment cabinet is provided, with a water-blocking strip and corresponding drainage structure on the top of the sealed compartment, which effectively guides the water entering from the open compartment to the sides of the cabinet, protecting the weakest point of the waterproof seal at the top of the double doors and improving the overall protection level of the electrical cabinet.
[0018] 2. The main and auxiliary cabinet doors are set up with a pressing and bonding structure for related adhesive strips, which effectively achieves the protective effect of the two double cabinet doors.
[0019] 3. An additional lock cylinder tightening device is designed in the electrical equipment installation frame structure of the cabinet to protect the weakest point of the waterproofing of the double doors and improve the protection level of the entire electrical cabinet. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall high-protection-level electrical equipment cabinet proposed in this utility model.
[0021] Figure 2 This is a schematic diagram of a water-blocking strip according to an embodiment of the present invention.
[0022] Figure 3 This is a schematic diagram of the water-blocking structure and drainage structure according to an embodiment of the present invention.
[0023] Figure 4 This is a schematic diagram of the drainage structure and water-blocking strip in one embodiment of the present invention.
[0024] Figure 5 This is a schematic diagram of the secondary cabinet door according to an embodiment of the present utility model.
[0025] Figure 6 This is a schematic diagram of the main cabinet door according to an embodiment of the present utility model.
[0026] Figure 7 This is a schematic diagram of the installation of a lock cylinder tightening device according to an embodiment of the present invention.
[0027] Figure 8 This is a schematic diagram illustrating the cooperation between the lock cylinder tightening device and the handle lock according to an embodiment of the present invention.
[0028] Reference numerals: 1-Open compartment, 2-Sealed compartment, 3-Air inlet filter, 4-Secondary cabinet door, 5-Main cabinet door, 6-Water-blocking structure, 7-Drainage structure, 8-Water-blocking strip, 9-Baffle structure, 10-Crimping sealing structure, 11-Glue strip groove, 12-Lock cylinder tightening device, 13-Second handle lock, 14-First handle lock. Detailed Implementation
[0029] The embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar modules or modules having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. Rather, the embodiments of this application include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.
[0030] Addressing the issue of large outdoor electrical equipment cabinets where a single door cannot be used for sealing due to cabinet width limitations, this invention proposes a high-protection-level electrical equipment cabinet. It employs a double-door sealing structure, and through a special structural design, ensures strong protection in vulnerable waterproof areas such as door joints. The specific solution is as follows:
[0031] Please refer to Figure 1 The high-protection-level electrical equipment cabinet is divided into two parts: an open compartment 1 and a sealed compartment 2. The open compartment 1 is used to install heat exchange equipment, and air inlet filters 3 are installed at the front and rear of the cabinet. The sealed compartment 2 is used to install electrical equipment.
[0032] Due to the large width of the cabinet and the inability to divide the sealed compartment 2 into two separate compartments, a single door may deform due to its excessive size and insufficient rigidity. Please refer to [the relevant documentation / reference]. Figure 5 , Figure 6In this embodiment, the sealed compartment 2 adopts a cabinet design with two doors that open outwards, including a secondary cabinet door 4 on the left and a main cabinet door 5 on the right. The secondary cabinet door 4 has a press-fit sealing structure 10 on its side. The main cabinet door 5 has a rubber strip groove 11 on its side, and a sealing rubber strip of the same size is installed in the rubber strip groove 11. When both doors are closed, the press-fit sealing structure 10 of the secondary cabinet door 4 is pressed into the rubber strip groove 11 of the main cabinet door 5. By addressing the weak point at the overlap of the two doors, the waterproof rating of the cabinet can be effectively improved.
[0033] When the equipment is exposed to rain, the two doors of the sealed compartment 2 fit tightly together, and the seal is achieved with the rubber strips on the door frame. The three-way overlap between the two doors and the door frame is the weakest point. Therefore, please refer to... Figure 2 In this embodiment, a water-blocking strip 8 is provided in the middle of the top cover of the sealed chamber 2. When rainwater falls normally to the bottom of the open chamber 1, the water will flow to the water-blocking strip 8 and then the water will be discharged from both sides through the water-blocking strip 8, protecting the weakest part in the middle from the effect of water immersion and water ingress.
[0034] In addition to the top horizontal structure, the air intake filter 3 installed inside the open compartment 1 will also accumulate water. Please refer to [reference needed]. Figure 3 In this embodiment, a water-blocking structure 6 and a drainage structure 7 are provided at the bottom inner side of the air inlet filter 3, which can effectively guide the water flow entering the open chamber 1. Please refer to... Figure 4 Specifically, the water-retaining strip 8 forms a groove structure with the cabinet, and drainage is completed through both sides of the groove structure. The drainage structure 7 cooperates with the groove structure to guide the water into the groove structure. Through this structure, all the water accumulated in the air intake filter 3 is guided to the drainage structure 7 and then to the water-retaining strip 8, where it is discharged from both sides. This effectively guides the water in the open compartment 1 to the more waterproof position on the upper edge of the sealed compartment 2, improving the overall protection of the cabinet.
[0035] In a preferred embodiment, the secondary cabinet door 4 further includes a baffle structure 9. The inner side of the baffle structure 9 is equipped with a sealing strip of the same size. When both doors are closed, the sealing strip of the baffle structure 9 of the secondary cabinet door 4 is tightly pressed against the main cabinet door 5, providing an external seal between the two doors. In practical applications, during the closing action, the main cabinet door 5 is closed first, and then the secondary cabinet door 4 is closed. The pressing and sealing structure 10 of the secondary cabinet door 4 is directly pressed into the sealing strip groove 11 of the main cabinet door 5, ensuring an internal seal between the two doors. During the locking process of the secondary cabinet door 4, the baffle structure 9 and the sealing strip of the same size, through the clamping force of the lock, ensure that the strip is tightly pressed against the outer surface of the main cabinet door 5, guaranteeing an external seal between the two doors.
[0036] In practical applications, large cabinets often lack sufficient internal equipment installation space to accommodate a central beam for independently securing the two doors. This invention addresses the issue of tight sealing between the main and secondary cabinet doors by improving the structure at the overlap. During the locking of the secondary cabinet door 4, the baffle structure 9 is equipped with a sealing strip of equal size, which adheres tightly to the outer surface of the main cabinet door 5. However, since the height of the two cabinet doors typically exceeds 1 meter, the locking mechanisms are usually located at the top and bottom of the sealing chamber 2. The area between the two doors is the weakest point in the seal between the baffle structure 9 and the main cabinet door 5. Please refer to [reference needed]. Figure 7 In this embodiment, an additional lock cylinder tightening device 12 is designed into the electrical equipment installation frame structure inside the open compartment 1 to further enhance the locking capability of the two doors. Please refer to... Figure 8 In this embodiment, the main cabinet door 5 and the secondary cabinet door 4 are respectively equipped with a first handle lock 14 and a second handle lock 13. The lock cylinder tensioning device 12 is installed on the electrical equipment mounting bracket inside the sealed chamber 2, and is located in the middle of the first handle lock 14 and the second handle lock 13. When both doors are closed, the lock cylinders of the first handle lock 14 and the second handle lock 13 are respectively embedded in the lock cylinder tensioning device 12 to complete the fixation.
[0037] When the equipment closes, the main cabinet door 5 is closed first, and the first handle lock 14 controls the main cabinet door 5 to be fixed. At the same time, the lock cylinder of the first handle lock 14 is screwed into the inside of the right side of the lock cylinder tensioning device 12, adding a cabinet door fitting and tensioning force except for the top and bottom of the sealed chamber 2. After the main cabinet door 5 is closed, the auxiliary cabinet door 4 is closed, and the lock cylinder of the second handle lock 13 is screwed into the inside of the left side of the lock cylinder tensioning device 12, which increases the overall sealing reliability of the baffle structure 9 and the main cabinet door 5.
[0038] The high-protection-level electrical equipment cabinet proposed in this utility model has the following advantages:
[0039] 1. A water-blocking strip and corresponding drainage structure are installed on the top of the sealed compartment to effectively guide the water entering from the open compartment to the sides of the cabinet, protecting the weakest point of the waterproof seal at the top of the double doors and improving the overall protection level of the electrical cabinet.
[0040] 3. An additional lock cylinder tightening device is designed in the electrical equipment installation frame structure of the cabinet to protect the weakest point of the waterproofing of the double doors and improve the protection level of the entire electrical cabinet.
[0041] Example 1
[0042] This embodiment proposes a high-protection-level electrical equipment cabinet, which is divided into upper and lower parts: an open compartment and a sealed compartment.
[0043] The open compartment is used to install heat exchange equipment, and air inlet filters are installed at the front and rear of the open compartment cabinet.
[0044] The sealed compartment is used to install electrical equipment. The sealed compartment adopts a cabinet door design with two doors that open opposite each other, including a secondary cabinet door and a main cabinet door set on the left and right. The secondary cabinet door has a press-fit sealing structure on its side. The main cabinet door has a rubber strip groove on its side, and a sealing rubber strip is set in the rubber strip groove. When the two doors are closed, the press-fit sealing structure of the secondary cabinet door is pressed into the rubber strip groove of the main cabinet door.
[0045] A water-blocking strip is provided in the middle of the top cover of the sealed compartment to drain water from the sides above the cabinet door.
[0046] Example 2
[0047] Based on Example 1, in this example, the water-blocking strip and the cabinet form a trough structure, and the two sides of the trough structure are used for drainage.
[0048] Example 3
[0049] Based on Example 2, the bottom inner side of the air inlet filter screen in this example is provided with a water-blocking structure and a drainage structure to guide the water flow entering the air inlet filter screen.
[0050] Example 4
[0051] Based on Example 3, the drainage structure described in this example cooperates with the tank structure to discharge water into the tank structure.
[0052] Example 5
[0053] Based on Embodiment 4, the secondary cabinet door in this embodiment also includes a baffle structure. The inner side of the baffle structure is equipped with a sealing strip. When both doors are closed, the sealing strip of the secondary cabinet door baffle structure is tightly attached to the main cabinet door for external sealing between the two doors.
[0054] Example 6
[0055] Based on Example 5, in this example, the main cabinet door and the secondary cabinet door are respectively equipped with a first handle lock and a second handle lock, and a lock cylinder tightening device is provided in the sealed chamber. When the two doors are closed, the lock cylinders of the first handle lock and the second handle lock are respectively embedded in the lock cylinder tightening device to complete the fixation.
[0056] Example 7
[0057] Based on Embodiment 6, the lock cylinder tightening device described in this embodiment is installed on the electrical equipment mounting bracket inside the sealed chamber, and is located in the middle position between the first handle lock and the second handle lock.
[0058] Example 8
[0059] Based on Example 7, in this example, the size of the sealing strip in the groove is the same as the size of the groove.
[0060] Example 9
[0061] Based on Example 8, the size of the sealing strip of the baffle structure in this example is the same as the size of the baffle structure.
[0062] This utility model can be well implemented through Examples 1 to 9.
[0063] It should be noted that, in the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "set" and "connection" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The accompanying drawings in the embodiments are used to clearly and completely describe the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0064] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A high-protection-level electrical equipment cabinet, characterized in that, The cabinet is divided into two parts: an open compartment (1) and a sealed compartment (2), which are located in the upper and lower sections. The open compartment (1) is used to install heat exchange equipment, and air inlet filters (3) are installed at the front and rear of the open compartment cabinet; The sealed compartment (2) is used to install electrical equipment. The sealed compartment (2) adopts a cabinet door design with two doors opening opposite each other, including a secondary cabinet door (4) and a main cabinet door (5) set on the left and right sides. The secondary cabinet door (4) is provided with a press-fit sealing structure (10) on its side. The main cabinet door (5) is provided with a rubber strip groove (11) on its side, and a sealing rubber strip is provided in the rubber strip groove (11). When the two doors are closed, the press-fit sealing structure (10) of the secondary cabinet door is pressed into the rubber strip groove (11) of the main cabinet door. The sealed chamber (2) has a water-blocking strip (8) in the middle of the top cover, which is used to drain the water above the cabinet door from both sides.
2. The high-protection-level electrical equipment cabinet according to claim 1, characterized in that, The water-blocking strip (8) forms a trough structure with the cabinet body, and the two sides of the trough structure are used for drainage.
3. The high-protection-level electrical equipment cabinet according to claim 2, characterized in that, The bottom inner side of the air inlet filter (3) is provided with a water-blocking structure (6) and a drainage structure (7) to guide the water flow entering the air inlet filter (3).
4. The high-protection-level electrical equipment cabinet according to claim 3, characterized in that, The drainage structure (7) works in conjunction with the tank structure to drain water into the tank structure.
5. The high-protection-level electrical equipment cabinet according to claim 1, characterized in that, The secondary cabinet door (4) also includes a baffle structure (9), the inner side of which is equipped with a sealing strip. When both doors are closed, the sealing strip of the baffle structure (9) of the secondary cabinet door (4) is tightly attached to the main cabinet door (5) for external sealing between the two doors.
6. The high-protection-level electrical equipment cabinet according to claim 1, characterized in that, The main cabinet door (5) and the secondary cabinet door (4) are respectively equipped with a first handle lock (14) and a second handle lock (13). The sealed compartment (2) is equipped with a lock cylinder tightening device (12). When the two doors are closed, the lock cylinders of the first handle lock (14) and the second handle lock (13) are respectively embedded in the lock cylinder tightening device (12) to complete the fixation.
7. The high-protection-level electrical equipment cabinet according to claim 6, characterized in that, The lock cylinder tightening device (12) is installed on the electrical equipment mounting rack inside the sealed chamber (2) and is located between the first handle lock (14) and the second handle lock (13).
8. The high-protection-level electrical equipment cabinet according to claim 1, characterized in that, The size of the sealing strip in the groove (11) is the same as the size of the groove (11).
9. The high-protection-level electrical equipment cabinet according to claim 5, characterized in that, The sealing strip of the baffle structure (9) is the same size as the baffle structure (9).