Cabinet door structure convenient to disassemble and high-voltage frequency converter cabinet body

Abstract

The utility model belongs to the technical field of electrical equipment, and particularly relates to a cabinet door structure convenient to disassemble and a high-voltage frequency converter cabinet body, the cabinet door structure convenient to disassemble comprises a cabinet door, a screw, a gourd-shaped hole formed in the cabinet door and a notch formed in the screw, and meanwhile, a 7-shaped buckle or a magnet block is arranged below the gourd-shaped hole of the cabinet door and can be matched with a corresponding slot or a magnet block on the cabinet body. The design of the notches on the screws increases the stability of the detachable cabinet door when the detachable cabinet door is hung on the screws, the design of the 7-shaped buckles or the magnets on the cabinet door can bear the gravity of the cabinet door, the abrasion of the screws is reduced, the maintenance cost of workers is reduced, and meanwhile the operation safety of the workers is improved when the cabinet door is detached.

Description

Technical Field

[0001] This application belongs to the field of electrical equipment technology, specifically a cabinet door structure that is easy to disassemble and a high-voltage frequency converter cabinet. Background Technology

[0002] In the design and application of high-voltage frequency converter cabinets, the cabinet door, as a key component for equipment protection and operation and maintenance, directly affects the safety and operational efficiency of the equipment. Traditional high-voltage frequency converter cabinet doors are typically made of metal sheet and connected to the cabinet frame with screws. Specifically, through holes are pre-drilled in the cabinet door, and the end of the screw facing away from its head is inserted into the cabinet, leaving a gap between the head and the cabinet. During installation, the through hole in the cabinet door must be aligned with the screw. However, in existing technology, the diameter of the through hole in the cabinet door is only slightly larger than the diameter of the screw head. While this design ensures the stability of the cabinet door suspended within the aforementioned gap, it has the following drawbacks:

[0003] 1. Difficult installation alignment: During assembly or on-site maintenance, such as debugging, repair or emergency situations requiring frequent opening and closing, operators need to accurately align the φ through hole of the cabinet door with the end of the screw. When the cabinet door is heavy, workers often cannot install it quickly and smoothly, resulting in low operating efficiency.

[0004] 2. The disassembly process is inefficient and unsafe. When it is necessary to temporarily disassemble the cabinet door to replace internal components or remove foreign objects, the cabinet door is difficult to detach from the screws quickly due to the small gap between the through holes. The cabinet door needs to be manually supported during detachment, which poses a risk of the cabinet door falling off and affects the safety of the staff.

[0005] 3. Cabinet doors are suspended on screws for extended periods, causing significant wear and tear, resulting in shorter screw lifespans and higher maintenance costs for staff. Utility Model Content

[0006] The purpose of this application is to address the shortcomings of existing technologies by designing a cabinet door structure and a high-voltage frequency converter cabinet that is easy to disassemble by setting a gourd hole on the cabinet door. This allows for flexible installation and disassembly of the cabinet door in scenarios such as assembly, on-site maintenance, and cleaning of foreign objects inside the cabinet, thereby improving the operational efficiency and safety of the staff.

[0007] To achieve the above objectives, the following technical solution is adopted:

[0008] A cabinet door structure that is easy to disassemble includes a cabinet door and screws. The cabinet door is provided with a gourd-shaped hole. The inner diameter of the larger end of the gourd-shaped hole is larger than the end of the screw. The inner diameter of the smaller end of the gourd-shaped hole is larger than the outer diameter of the screw. The inner diameter of the smaller end of the gourd-shaped hole is smaller than the outer diameter of the end of the screw.

[0009] Preferably, a notch is provided on the circumferential surface between the two ends of the screw near the end of the screw, and the width of the notch is greater than the thickness of the cabinet door.

[0010] Preferably, the cabinet door is provided with a 7-shaped buckle below the gourd hole. One end of the horizontal portion of the 7-shaped buckle faces the gourd hole, and one end of the vertical portion of the 7-shaped buckle faces away from the gourd hole. The horizontal portion of the 7-shaped buckle is perpendicular to the cabinet door, and the upper end of the vertical portion of the 7-shaped buckle is fixedly connected to the end of the horizontal portion of the 7-shaped buckle facing away from the cabinet door.

[0011] Preferably, a first magnet is provided on the cabinet door below the gourd hole, and the first magnet is fixedly connected to the cabinet door.

[0012] Preferably, the width of the notch is 2-5 mm greater than the thickness of the cabinet door.

[0013] On the other hand, a high-voltage frequency converter cabinet is provided, comprising a cabinet body and a cabinet door structure with a 7-shaped buckle for easy disassembly. The front side wall of the cabinet body has a retrieval opening, and the bottom wall of the retrieval opening has an upward-opening slot. The lower end of the vertical portion of the 7-shaped buckle can be inserted into the slot. One end of a screw facing away from the screw head is inserted into the front side wall of the cabinet body, with a predetermined gap between the screw head and the front side wall of the cabinet body. This gap is greater than the thickness of the cabinet door. The screw is located directly above the retrieval opening of the cabinet body, and the shape and size of the cabinet door are larger than the shape and size of the retrieval opening.

[0014] When the small end of the gourd-shaped hole of the cabinet door is hung on the screw, the distance from the slot opening to the screw is less than the distance from the lower end of the vertical part of the 7-shaped buckle to the screw, and the cabinet door can completely cover the access opening.

[0015] When the larger end of the gourd-shaped hole of the cabinet door contacts the lowest point of the circumferential surface of the screw, the distance from the lower end of the vertical part of the 7-shaped buckle to the screw is less than the distance from the slot opening to the screw.

[0016] Preferably, the gap is 5-7 mm.

[0017] On another front, a high-voltage frequency converter cabinet is provided, comprising: a cabinet and a detachable cabinet door structure with a first magnet block. The front side wall of the cabinet is provided with a retrieval opening. One end of a screw facing away from the screw head is inserted into the cabinet body. The screw is located directly above the retrieval opening. A preset gap exists between the end and the outer surface of the cabinet body. The gap is greater than the thickness of the cabinet door. The screw is located directly above the retrieval opening. A second magnet block that cooperates with the first magnet block is provided on the outer side wall of the cabinet below the retrieval opening. The shape and size of the cabinet door are larger than the shape and size of the retrieval opening.

[0018] Preferably, both the first magnet block and the second magnet block are neodymium iron boron magnets.

[0019] Compared with the prior art, the beneficial effects of this application are:

[0020] 1. This application adopts the method of setting hoist holes on the cabinet door of the high voltage frequency converter, which makes the cabinet door easier to install and disassemble, and improves the operational efficiency of workers in installing and disassembling the cabinet door in scenarios such as assembly, on-site maintenance, and cleaning foreign objects inside the cabinet.

[0021] 2. In this application, because a 7-shaped buckle or magnetic block is provided at the bottom of the cabinet door to cooperate with the cabinet body, the movable cabinet door is more securely connected to the cabinet body, while reducing the risk of slipping when disassembling the cabinet door and improving the safety of the staff during operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this application;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a schematic diagram of the gourd's hole;

[0025] Figure 4 This diagram shows the relationship between the gourd holes and screws after the cabinet door is hung on the cabinet body.

[0026] Figure 5 This is a diagram illustrating the use of L7-shaped fasteners on the cabinet.

[0027] Figure 6 for Figure 5 A diagram of the back;

[0028] Figure 7 This is a schematic diagram showing the use of a second magnet block on the cabinet.

[0029] Figure 8 for Figure 7 A diagram of the back.

[0030] Among them, 1. Cabinet door; 2. Screw; 3. End; 4. Gourd hole; 5. Notch; 6. 7-shaped buckle; 6-1. Horizontal part; 6-2. Vertical part; 7. First magnet block; 8. Opening; 9. Slot; 10. Second magnet block; 11. Cabinet body. Detailed Implementation

[0031] Reference Figures 1-8 A cabinet door structure that is easy to disassemble includes a cabinet door 1 and screws 2. The cabinet door 1 is provided with a gourd-shaped hole 4. The inner diameter of the larger end of the gourd-shaped hole 4 is larger than the end 3 of the screw 2. The inner diameter of the smaller end of the gourd-shaped hole 4 is larger than the outer diameter of the screw 2. The inner diameter of the smaller end of the gourd-shaped hole 4 is smaller than the outer diameter of the end 3 of the screw 2.

[0032] In this embodiment, when the cabinet door 1 of the cabinet body 11 needs to be closed, the larger end of the gourd hole 4 on the cabinet door 1 is directly inserted into the screw 2. Then, the cabinet door 1 falls under its own weight, causing the screw 2 to slide from the larger end of the gourd hole 4 to the smaller end. Since the inner diameter of the smaller end of the gourd hole 4 is smaller than the outer diameter of the end 3 of the screw 2, the cabinet door 1 will not slide off the screw 2. When the cabinet door 1 needs to be removed, it needs to be lifted forcefully, causing the screw 2 to move from the lower end of the gourd hole 4 to the larger end. Since the inner diameter of the larger end of the gourd hole 4 is larger than the end 3 of the screw 2, the cabinet door 1 can be removed directly. This allows the cabinet door 1 to be quickly detached from the screw 2 when it needs to be opened. This facilitates the installation of the cabinet door 1 on the cabinet body 11 and the removal of the cabinet door 1 from the cabinet body 11.

[0033] Preferably, a notch 5 is provided on the circumferential surface between the two ends of the screw 2 near the end of the screw 2, and the width of the notch 5 is greater than the thickness of the cabinet door 1. By providing the notch 5, the cabinet door 1 is further secured even with the end 3, preventing the cabinet door 1 from slipping off the cabinet body 11.

[0034] Preferred, such as Figure 5 and Figure 6As shown, a 7-shaped buckle 6 is provided on the cabinet door 1 below the gourd hole 4. One end of the horizontal portion 6-1 of the 7-shaped buckle 6 faces the gourd hole 4, and one end of the vertical portion 6-2 of the 7-shaped buckle 6 faces away from the gourd hole 4. The horizontal portion 6-1 of the 7-shaped buckle 6 is perpendicular to the cabinet door 1, and the upper end of the vertical portion 6-2 of the 7-shaped buckle 6 is fixedly connected to the end of the horizontal portion 6-1 of the 7-shaped buckle 6 facing away from the cabinet door 1. With this setup, after the cabinet door 1 is closed to cover the retrieval opening 8, the vertical part 6-2 of the 7-shaped buckle 6 on the cabinet door 1 is inserted into the slot 9 on the cabinet body 11, securing the lower end of the cabinet door 1. This prevents the user from unknowingly prying open the cabinet door 1 from the lower end, thus preventing damage to the gourd hole 4 and the cabinet door 1. If the user applies a force from the lower end of the cabinet door 1 towards the opening of the retrieval opening 8, a torque will be created between the upper and lower ends of the cabinet door 1, easily damaging the gourd hole 4 or directly prying the screw 2 off the cabinet body 11. Furthermore, if only one screw 2 is designed for each retrieval opening 8 on the cabinet body 11, the vertical part 6-2 of the 7-shaped buckle 6 inserted into the slot 9 on the cabinet body 11 can also prevent the cabinet door 1 from rotating around the screw 2 under external force.

[0035] Another alternative to the L-shaped buckle 6 is as follows: a first magnet 7 is provided on the cabinet door 1 below the gourd hole 4, and the first magnet 7 is fixedly connected to the cabinet door 1. With this arrangement, a second magnet 10 that cooperates with the first magnet 7 is provided below the access opening 8 of the cabinet body 1. In this way, the lower end of the cabinet door 1 can be fixed to a certain extent without the L-shaped buckle 6, so that the cabinet door 1 will not rotate around the screw 2.

[0036] Preferably, the width of the notch 5 is 2-5mm larger than the thickness of the cabinet door 1. This allows the edge of the gourd hole 4 on the cabinet door 1 to easily fit into the notch 5.

[0037] On the other hand, a high-voltage frequency converter cabinet is provided, comprising a cabinet body 11 and a cabinet door structure with a 7-shaped buckle for easy disassembly. The front side wall of the cabinet body 11 has a retrieval opening 8, and the bottom wall of the retrieval opening 8 has an upward-opening slot 9. The lower end of the vertical portion 6-2 of the 7-shaped buckle 6 can be inserted into the slot 9. One end 3 of the screw 2, facing away from the screw 2, is inserted into the front side wall of the cabinet body 11. A predetermined gap exists between the end 3 and the front side wall of the cabinet body 11, the gap being greater than the thickness of the cabinet door 1. The screw 2 is located directly above the retrieval opening 8 of the cabinet body 11. The shape and size of the cabinet door 1 are larger than the shape and size of the retrieval opening 8.

[0038] When the small end of the gourd hole 4 of the cabinet door 1 is hung on the screw 2, the distance from the slot 9 to the screw 2 is less than the distance from the lower end of the vertical part 6-2 of the 7-shaped buckle 6 to the screw 2, so that the cabinet door 1 can completely cover the access opening 8. This arrangement is so that when the screw 2 is located at the small end of the gourd hole 4, the lower end of the vertical part 6-2 of the 7-shaped buckle 6 can be inserted into the slot 9 to fix the lower end of the cabinet door 1.

[0039] When the larger end of the gourd-shaped hole 4 of the cabinet door 1 contacts the lowest point of the circumferential surface of the screw 2, the distance from the lower end of the vertical portion 6-2 of the 7-shaped buckle 6 to the screw 2 is less than the distance from the slot opening of the slot 9 to the screw 2. This arrangement ensures that when the cabinet door 1 is lifted upwards, as the screw 2 moves relative to the lower edge of the larger end of the gourd-shaped hole 4, the lower end of the vertical portion 6-2 of the 7-shaped buckle 6 can just disengage from the slot 9, thus facilitating the removal of the cabinet door 1 from the cabinet body 11.

[0040] Preferably, the gap is 5-7 mm.

[0041] On the other hand, such as Figure 7 and Figure 8 As shown, a high-voltage frequency converter cabinet is provided, comprising: a cabinet body 11 and a cabinet door structure with a first magnet block for easy disassembly. The front side wall of the cabinet body 11 is provided with a retrieval opening 8. One end of the screw 2 facing away from the screw 2 is inserted into the cabinet body 11. The screw 2 is located directly above the retrieval opening 8. A preset gap is formed between the end 3 and the outer surface of the cabinet body 11. The gap is greater than the thickness of the cabinet door 1. The screw 2 is located directly above the retrieval opening 8. A second magnet block 10 that cooperates with the first magnet block 7 is provided on the outer side wall of the cabinet body 11 below the retrieval opening 8. The shape and size of the cabinet door 1 are larger than the shape and size of the retrieval opening 8.

[0042] Preferably, both the first magnet block 7 and the second magnet block 10 are neodymium iron boron magnets.

[0043] Preferably, the cabinet body 11 is provided with a hanging shaft 12 directly above the access opening 8, the hanging shaft 12 is parallel to the screw 2, and the cabinet door 1 is provided with a hanging groove 13 that cooperates with the hanging shaft 12. The connecting line segment between the upper edge of the hanging groove 13 and the edge of the small end of the gourd hole 4 is parallel to the upper edge of the cabinet door 1. The distance between the lower edge of the hanging groove 13 and the lower edge of the cabinet door 1 is greater than or equal to the distance between the edge of the large end of the gourd hole 4 and the lower edge of the cabinet door 1. With this design, when the cabinet door 1 is hung on the access opening 8 on the cabinet body 11, the hanging shaft 12 can share the weight of the cabinet door 1 with the screw 2.

Claims

1. A cabinet door structure that is easy to disassemble, characterized in that, Includes a cabinet door (1) and screws (2). The cabinet door (1) is provided with a gourd-shaped hole (4). The inner diameter of the larger end of the gourd-shaped hole (4) is larger than the end (3) of the screw (2). The inner diameter of the smaller end of the gourd-shaped hole (4) is larger than the outer diameter of the screw (2). The inner diameter of the smaller end of the gourd-shaped hole (4) is smaller than the outer diameter of the end (3) of the screw (2).

2. The cabinet door structure for easy disassembly according to claim 1, characterized in that, A notch (5) is provided on the circumferential surface between the two ends of the screw (2) near the end of the screw (2), and the width of the notch (5) is greater than the thickness of the cabinet door (1).

3. The cabinet door structure for easy disassembly according to claim 1, characterized in that, The cabinet door (1) is provided with a 7-shaped buckle (6) below the gourd hole (4). One end of the horizontal part (6-1) of the 7-shaped buckle (6) faces the gourd hole (4), and one end of the vertical part (6-2) of the 7-shaped buckle (6) faces away from the gourd hole (4). The horizontal part (6-1) of the 7-shaped buckle (6) is perpendicular to the cabinet door (1). The upper end of the vertical part (6-2) of the 7-shaped buckle (6) is fixedly connected to the end of the horizontal part (6-1) of the 7-shaped buckle (6) facing away from the cabinet door (1).

4. The cabinet door structure for easy disassembly according to claim 1, characterized in that, The cabinet door (1) is provided with a first magnet block (7) below the gourd hole (4), and the first magnet block (7) is fixedly connected to the cabinet door (1).

5. The cabinet door structure for easy disassembly according to claim 2, characterized in that, The width of the notch (5) is 2-5 mm greater than the thickness of the cabinet door (1).

6. A high-voltage frequency converter cabinet, characterized in that, The cabinet includes a cabinet body (11) and a cabinet door structure that is easy to disassemble as described in claim 3. The front side wall of the cabinet body (11) is provided with a retrieval opening (8). The bottom wall of the retrieval opening (8) of the cabinet body (11) is provided with an upward-facing slot (9). The lower end of the vertical part (6-2) of the 7-shaped buckle (6) can be inserted into the slot (9). One end of the screw (2) facing away from the screw (2) is inserted into the front side wall of the cabinet body (11). There is a preset gap between the end (3) and the front side wall of the cabinet body (11). The gap is greater than the thickness of the cabinet door (1). The screw (2) is located directly above the retrieval opening (8) of the cabinet body (11). The shape and size of the cabinet door (1) are larger than the shape and size of the retrieval opening (8). When the small end of the gourd hole (4) of the cabinet door (1) is hung on the screw (2), the distance from the slot (9) to the screw (2) is less than the distance from the lower end of the vertical part (6-2) of the 7-shaped buckle (6) to the screw (2), and the cabinet door (1) can completely cover the opening (8). When the large end of the gourd hole (4) of the cabinet door (1) contacts the lowest point of the circumferential surface of the screw (2), the distance from the lower end of the vertical part (6-2) of the 7-shaped buckle (6) to the screw (2) is less than the distance from the slot (9) to the screw (2).

7. A high-voltage frequency converter cabinet according to claim 6, characterized in that, The gap is 5-7mm.

8. A high-voltage frequency converter cabinet, characterized in that, The cabinet includes a cabinet body (11) and a cabinet door structure that is easy to disassemble as described in claim 4. The front side wall of the cabinet body (11) is provided with a retrieval opening (8). One end of the screw (2) facing away from the screw (2) is inserted into the cabinet body (11). The screw (2) is located directly above the retrieval opening (8). There is a preset gap between the end (3) and the outer surface of the cabinet body (11). The gap is greater than the thickness of the cabinet door (1). The screw (2) is located directly above the retrieval opening (8). A second magnet block (10) that cooperates with the first magnet block (7) is provided on the outer side wall of the cabinet body (11) below the retrieval opening (8). The shape and size of the cabinet door (1) are larger than the shape and size of the retrieval opening (8).

9. A high-voltage frequency converter cabinet according to claim 8, characterized in that, Both the first magnet block (7) and the second magnet block (10) are neodymium iron boron magnets.

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