Safety protection cabinet door of low-voltage capacitor cabinet

The low-voltage capacitor cabinet door, designed with a double-layer cabinet door structure and transmission mechanism, solves the problem of exposed electrical components when the cabinet door is opened in the existing technology, improves safety and management efficiency, and avoids power accidents.

CN223583531UActive Publication Date: 2025-11-21JIANGSU NANWANG ELECTRIC POWER TECH CO LTD
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Patent Information

Application Number
CN202422879072.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-11-21
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

When existing low-voltage capacitor banks are in use, opening the entire cabinet door exposes the internal electrical components, resulting in poor safety and potentially affecting other functional areas, posing a risk of power accidents.

Method used

The design incorporates a double-layer cabinet door structure. The outer door provides initial protection, while the inner door, through a transmission mechanism and a locking plate design, ensures that it cannot be easily opened without authorization. A monitoring display is used to differentiate functional areas.

Benefits of technology

This improved the safety protection level of the low-voltage capacitor bank, enhanced operation and maintenance efficiency, ensured equipment safety, and prevented power accidents caused by misoperation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223583531U_ABST
Patent Text Reader

Abstract

The utility model discloses a safety protection cabinet door of a low-voltage capacitor cabinet, which relates to the technical field of capacitor cabinets, and comprises a cabinet body, one side of the cabinet body is provided with an outer layer cabinet door, one side of the outer layer cabinet door is provided with three monitoring displays at equal intervals, one side of the outer layer cabinet door is symmetrically provided with lock catches, and the other side of the outer layer cabinet door is provided with a power supply. The inner wall of the cabinet body is provided with a protection assembly, the protection assembly comprises an inner-layer cabinet door, one side of the inner-layer cabinet door is provided with the inner-layer cabinet door at equal intervals, and one side of the inner-layer cabinet door is provided with three partition plates at equal intervals. According to the utility model, the double-layer cabinet door structure (the outer layer cabinet door and the inner layer cabinet door) is designed, so that the safety protection level of the low-voltage capacitor cabinet is effectively improved. The outer-layer cabinet door provides preliminary protection and monitoring functions, and the inner-layer cabinet door is designed through a transmission mechanism and a clamping plate in the inner-layer cabinet door, so that the inner-layer cabinet door cannot be easily opened under the unauthorized condition, and the safety of equipment in the cabinet is protected.
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Description

Technical Field

[0001] This utility model relates to the field of capacitor cabinet technology, specifically a safety protection cabinet door for a low-voltage capacitor cabinet. Background Technology

[0002] Modular capacitor banks are widely used in modern power systems because they are easy to install and maintain.

[0003] However, this utility model has the following problems in actual use:

[0004] Existing low-voltage capacitor banks have well-organized internal functional areas, but in actual use, opening the entire cabinet door exposes the internal electrical components. Moreover, during inspection and maintenance, the entire cabinet door is often opened to check one area, which can easily affect other functional areas and is very unsafe, potentially causing electrical accidents. Utility Model Content

[0005] This utility model provides a safety protection cabinet door for a low-voltage capacitor bank, which has the advantages of being able to open in sections and conveniently opening different functional areas. This solves the problem that when the entire cabinet door is opened during use, the internal electrical components will be exposed to the outside. Moreover, during inspection and maintenance, the entire cabinet door is usually opened to check one area, which can easily affect other functional areas and is very unsafe, potentially causing electrical accidents.

[0006] To achieve the purpose of partitioned opening and convenient access to different functional areas, this utility model provides the following technical solution: a safety protection cabinet door for a low-voltage capacitor bank, comprising a cabinet body, an outer cabinet door installed on one side of the cabinet body, three monitoring displays equidistantly installed on one side of the outer cabinet door, and latches symmetrically installed on one side of the outer cabinet door. A protective assembly is installed on the inner wall of the cabinet body, wherein: the protective assembly includes an inner cabinet door, an inner cabinet door equidistantly arranged on one side of the inner cabinet door, three partitions equidistantly installed on one side of the inner cabinet door, a knob on one side of the partition, a transmission rod installed on one side of the knob, a limit block installed on the outer surface of the transmission rod, a rotating block installed on the inner wall of the limit block, a locking plate installed on the outer surface of the transmission rod, horizontal and vertical grooves respectively opened on both sides of the locking plate, a moving groove opened in the middle of the locking plate, an installation block installed on the inner wall of the inner cabinet door, and a rotating rod installed on the inner wall of the installation block.

[0007] As a preferred technical solution of this utility model, the latch is divided into a locking end and a fixing end. The fixing end of the latch is fixedly connected to one side of the outer cabinet door and one side of the cabinet body. The locking end and the fixing end are in movable contact with each other.

[0008] As a preferred embodiment of this utility model, the outer surface of the inner cabinet door is in movable contact with the inner wall of the cabinet, one side surface of the inner cabinet door is in movable contact with the inner wall of the outer cabinet door, and one side of the partition is fixedly connected to the inner wall of the outer cabinet door.

[0009] As a preferred technical solution of this utility model, the inner wall of the partition and the outer surface of the transmission rod are movably and rotatably connected to each other, one side of the knob is in movable contact with one side of the outer cabinet door, the outer surface of the limiting block is fixedly connected to the inner wall of the partition, and the outer surface of the limiting block is in movable contact with the outer surface of the rotating block.

[0010] As a preferred technical solution of this utility model, the outer surface of the card plate is fixedly connected to the inner wall of the inner cabinet door, the horizontal groove is opened at the front end of the card plate, the moving groove is opened at the rear end of the horizontal groove, the vertical groove is opened at the rear end of the moving groove, and the inner wall of the vertical groove is in movable contact with the outer surface of the transmission rod.

[0011] As a preferred embodiment of this utility model, the outer surface of the mounting block is fixedly connected to the inner wall of the cabinet, the inner wall of the mounting block is movably and rotatably connected to the outer surface of the rotating rod, and the outer surface of the rotating rod is movably and rotatably connected to the inner wall of the inner cabinet door.

[0012] As a preferred embodiment of this utility model, the monitoring display corresponds to each inner cabinet door, and the inner cabinet door corresponds to the functional area inside the cabinet.

[0013] Compared with the prior art, this utility model provides a safety protection cabinet door for a low-voltage capacitor bank, which has the following advantages:

[0014] 1. By designing a double-layer cabinet door structure (outer and inner cabinet doors), the safety protection level of the low-voltage capacitor cabinet is effectively improved. The outer cabinet door provides basic protection and monitoring functions, while the inner cabinet door, through its internal transmission mechanism and latch design, further ensures that it cannot be easily opened without authorization, thereby protecting the safety of the equipment inside the cabinet.

[0015] 2. Three monitoring displays are installed at equal intervals on the outer cabinet door, corresponding to each inner cabinet door and the functional area inside the cabinet, so that maintenance personnel can intuitively monitor the status of each area and improve management efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the external structure of the protective component of this utility model;

[0019] Figure 4 This is a schematic diagram of the external structure of the protective component of this utility model from another angle;

[0020] Figure 5 This is a schematic diagram of the card plate connection structure of this utility model.

[0021] In the diagram: 1. Cabinet body; 2. Outer cabinet door; 3. Monitoring display; 4. Lock; 5. Protective components; 6. Inner cabinet door; 7. Partition; 8. Knob; 9. Transmission rod; 10. Limit block; 11. Rotating block; 12. Clamping plate; 13. Horizontal groove; 14. Moving groove; 15. Vertical groove; 16. Mounting block; 17. Rotating rod. Detailed Implementation

[0022] 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. Example 1

[0023] Please see Figures 1-2 This utility model discloses a safety protection cabinet door for a low-voltage capacitor bank, comprising a cabinet body 1, an outer cabinet door 2 installed on one side of the cabinet body 1, three monitoring displays 3 equidistantly installed on one side of the outer cabinet door 2, and latches 4 symmetrically installed on one side of the outer cabinet door 2. Protective components 5 are installed on the inner wall of the cabinet body 1, wherein:

[0024] The protective component 5 includes an inner cabinet door 6. Three partitions 7 are equidistantly arranged on one side of the inner cabinet door 6. A knob 8 is located on one side of each partition 7. A transmission rod 9 is installed on one side of each knob 8. A limit block 10 is installed on the outer surface of the transmission rod 9. A rotating block 11 is installed on the inner wall of the limit block 10. A clamping plate 12 is installed on the outer surface of the transmission rod 9. Horizontal grooves 13 and vertical grooves 15 are respectively opened on both sides of the clamping plate 12. A moving groove 14 is opened in the middle of the clamping plate 12. An installation block 16 is installed on the inner wall of the inner cabinet door 6. A rotating rod 17 is installed on the inner wall of the installation block 16.

[0025] The latch 4 is divided into a locking end and a fixing end. The fixing end of the latch 4 is fixedly connected to one side of the outer cabinet door and one side of the cabinet body 1. The locking end and the fixing end of the latch 4 are in contact with each other.

[0026] The outer surface of the inner cabinet door 6 is in contact with the inner wall of the cabinet body 1, one side surface of the inner cabinet door 6 is in contact with the inner wall of the outer cabinet door 2, and one side of the partition 7 is fixedly connected to the inner wall of the outer cabinet door 2.

[0027] Select and lock the inner cabinet door 6 of the corresponding functional area. As needed, the staff selects the corresponding functional area and locks or unlocks its inner cabinet door 6 by rotating the corresponding knob 8.

[0028] It is important to note that only locked inner cabinet doors 6 will open simultaneously with the outer cabinet door 2. If an inner cabinet door 6 of a functional area is not locked, it will remain closed even if the outer cabinet door 2 is opened. After confirming that the inner cabinet door 6 of the functional area to be viewed or operated is locked, the worker can use the unlocking lever 4 on the outer cabinet door 2 to open it, allowing the outer cabinet door 2 to be opened smoothly, exposing the internal inner cabinet door 6 and partition 7 structure. Example 2

[0029] Based on the above embodiment 1, please refer to Figures 3-5 The inner wall of the partition 7 is rotatably connected to the outer surface of the transmission rod 9. One side of the knob 8 is in movable contact with one side of the outer cabinet door 2. The outer surface of the limiting block 10 is fixedly connected to the inner wall of the partition 7. The outer surface of the limiting block 10 is in movable contact with the outer surface of the rotating block 11.

[0030] The outer surface of the card plate 12 is fixedly connected to the inner wall of the inner cabinet door 6. The horizontal groove 13 is opened at the front end of the card plate 12, the moving groove 14 is opened at the rear end of the horizontal groove 13, and the vertical groove 15 is opened at the rear end of the moving groove 14. The inner wall of the vertical groove 15 is in movable contact with the outer surface of the transmission rod 9.

[0031] The outer surface of the mounting block 16 is fixedly connected to the inner wall of the cabinet 1, the inner wall of the mounting block 16 is movably and rotatably connected to the outer surface of the rotating rod 17, and the outer surface of the rotating rod 17 is movably and rotatably connected to the inner wall of the inner cabinet door 6.

[0032] The monitoring display 3 corresponds to each inner cabinet door 6, and the inner cabinet door 6 corresponds to the functional area inside the cabinet 1.

[0033] When the outer cabinet door 2 is opened, the locked inner cabinet door 6 will also open simultaneously, exposing the equipment in the corresponding functional area. Staff can easily access this equipment to perform necessary inspections, maintenance, or replacements. After completing all operations, staff must ensure that all opened inner cabinet doors 6 are properly closed and returned to their locked position.

[0034] The working principle and usage process of this utility model: Observe the monitoring display 3 on the outer cabinet door 2 to understand the current status of each functional area and determine the functional area that needs to be viewed or operated.

[0035] Select and lock the inner cabinet door 6 of the corresponding functional area. As needed, the staff selects the corresponding functional area and locks or unlocks its inner cabinet door 6 by rotating the corresponding knob 8.

[0036] It is important to note that only locked inner cabinet doors 6 will open together with the outer cabinet door 2 when it is opened. If an inner cabinet door 6 of a certain functional area is not locked, then even if the outer cabinet door 2 is opened, the inner cabinet door 6 will remain closed.

[0037] After confirming that the inner cabinet door 6 of the functional area to be viewed or operated is locked, the staff uses the unlocking mechanism on the outer cabinet door 2. Once the latch 4 is opened, the outer cabinet door 2 can be opened smoothly, exposing the internal structure of the inner cabinet door 6 and the partition 7.

[0038] As the outer cabinet door 2 is opened, the locked inner cabinet door 6 will also open, exposing the equipment in the corresponding functional area. Staff can easily access this equipment to perform necessary inspections, maintenance, or replacements. After completing all operations, staff must ensure that all opened inner cabinet doors 6 are properly closed and returned to their locked position.

[0039] This can be achieved by rotating knob 8 to ensure that the latch 12 and transmission rod 9 are properly engaged, thereby restoring the cabinet door to its locked state. Finally, the operator closes the outer cabinet door 2 and locks it using latch 4. After ensuring that the outer cabinet door 2 is securely closed and locked, the safety protection of the entire low-voltage capacitor cabinet is restored.

Claims

1. A safety guard cabinet door for a low voltage capacitor cabinet comprising a cabinet body (1), characterized in that: One side of the cabinet body (1) is provided with an outer cabinet door (2), three monitoring displays (3) are equidistantly arranged on one side of the outer cabinet door (2), and a lock catch (4) is symmetrically arranged on one side of the outer cabinet door (2); a protection assembly (5) is arranged on the inner wall of the cabinet body (1), wherein: The protection assembly (5) comprises an inner cabinet door (6), and the inner cabinet door (6) is equidistantly arranged on one side of the inner cabinet door (6); three partitions (7) are equidistantly arranged on one side of the inner cabinet door (6); a knob (8) is arranged on one side of the partition (7); a transmission rod (9) is arranged on one side of the knob (8); a limiting block (10) is arranged on the outer side surface of the transmission rod (9); a rotating block (11) is arranged on the inner wall of the limiting block (10); a clamping plate (12) is arranged on the outer side surface of the transmission rod (9); horizontal grooves (13) and vertical grooves (15) are respectively formed in the two sides of the clamping plate (12); a moving groove (14) is formed in the middle of the clamping plate (12); an installation block (16) is arranged on the inner wall of the inner cabinet door (6); and a rotating rod (17) is arranged on the inner wall of the installation block (16).

2. A safety cabinet door for a low voltage capacitor cabinet according to claim 1, characterized in that: The lock catch (4) is divided into a locking end and a fixed end, the fixed end of the lock catch (4) is fixedly connected with one side of the outer cabinet door and one side of the cabinet body (1), and the locking end of the lock catch (4) is movably connected with the fixed end.

3. A safety cabinet door for a low voltage capacitor cabinet according to claim 2, characterized in that: The outer side surface of the inner cabinet door (6) is movably connected with the inner wall of the cabinet body (1), one side surface of the inner cabinet door (6) is movably connected with the inner wall of the outer cabinet door (2), and one side of the partition (7) is fixedly connected with the inner wall of the outer cabinet door (2).

4. A safety cabinet door for a low voltage capacitor cabinet according to claim 3, characterized in that: The inner wall of the partition (7) is movably and rotatably connected with the outer side surface of the transmission rod (9), one side of the knob (8) is movably connected with one side surface of the outer cabinet door (2), the outer side surface of the limiting block (10) is fixedly connected with the inner wall of the partition (7), and the outer side surface of the limiting block (10) is movably connected with the outer side surface of the rotating block (11).

5. A safety cabinet door for a low voltage capacitor cabinet according to claim 1, characterized in that: The outer side surface of the clamping plate (12) is fixedly connected with the inner wall of the inner cabinet door (6), the horizontal grooves (13) are formed in the front end of the clamping plate (12), the moving groove (14) is formed in the rear end of the horizontal groove (13), the vertical groove (15) is formed in the rear end of the moving groove (14), and the inner wall of the vertical groove (15) is movably connected with the outer side surface of the transmission rod (9).

6. A safety cabinet door for a low voltage capacitor cabinet according to claim 1, characterized in that: The outer side surface of the installation block (16) is fixedly connected with the inner wall of the cabinet body (1), the inner wall of the installation block (16) is movably and rotatably connected with the outer side surface of the rotating rod (17), and the outer side surface of the rotating rod (17) is movably and rotatably connected with the inner wall of the inner cabinet door (6).

7. A safety cabinet door for a low voltage capacitor cabinet according to claim 1, characterized in that: The monitoring displays (3) correspond to the inner cabinet doors (6) respectively, and the inner cabinet doors (6) correspond to the functional partitions in the cabinet body (1) respectively.