Electrical relay cabinet

Abstract

The utility model provides an electrical relay cabinet, relates to the technical field of electric power facilities, and solves the technical problem that strong signals on the same side of an existing relay cabinet are easy to interfere with other signals. The cabinet comprises a cabinet body and wiring surfaces arranged on the two surfaces of the cabinet body, wherein each wiring surface is provided with a plurality of groups of wiring windows for wiring and shielding wire slots arranged among the wiring windows for shielding interference; the cabinet door is used for protecting the wiring surface; and the cabinet door is provided with a plurality of groups of metal protective covers used for shielding the interference of the wiring window. According to the utility model, electromagnetic interference between wiring surfaces and wiring windows can be reduced; shielding of the wiring window by the protective cover does not affect normal maintenance and inspection of the box opening; the wiring in the cabinet can be kept tidy and orderly, cable winding and disorder are avoided, and the maintainability and safety of wiring are improved.

Description

Technical Field

[0001] This utility model relates to the field of power facility technology, and more specifically, to an electrical relay cabinet. Background Technology

[0002] A relay cabinet is an essential component of an electrical control system. It is primarily used to install various relays, contactors, circuit breakers, and other control equipment. In industrial automation, relay cabinets amplify, convert, and protect circuits. When the signal from the control room is insufficient to directly drive the actuator, it needs to be amplified by the relays within the cabinet. Furthermore, it provides isolation, ensuring a safe connection between the main control system and field equipment. A relay cabinet typically contains the following components: Relays: used to receive control signals and perform corresponding actions. Contactors: used to frequently connect or disconnect circuits under load. Circuit breakers: automatically disconnect the circuit when the current exceeds a predetermined value to prevent damage caused by overload or short circuit. Terminal blocks: provide wiring points for easy cable connections.

[0003] To ensure system reliability and safety, instrument signals (usually measurements from sensors) and electrical signals (such as command signals used to control actuators) sometimes need to be physically or electrically separated. Due to space and cost constraints, electrical and instrument signals are often placed on the front and back sides of the repeater cabinet for physical isolation. However, strong signals on the same side of the repeater cabinet can easily interfere with other signals, and connecting cables for various purposes together occupies a large amount of space and results in a messy cabling layout. Utility Model Content

[0004] The purpose of this utility model is to provide an electrical relay cabinet to solve the technical problem that strong signals on the same side of existing relay cabinets can easily interfere with other signals.

[0005] The embodiments of this utility model are achieved through the following technical solutions:

[0006] An electrical relay cabinet includes a cabinet body and wiring faces on both sides of the cabinet body. The wiring faces are provided with a plurality of wiring windows for wiring and shielding cable trays provided between the wiring windows for shielding interference. The cabinet also includes a cabinet door for protecting the wiring faces. The cabinet door is provided with a plurality of metal protective covers for shielding interference from the wiring windows.

[0007] Preferably, the protective cover covers the wiring window, and the wiring window is provided with a metal connector for maintaining connection with the protective cover.

[0008] Preferably, the connector includes two sets of connecting posts arranged at an included angle, and the connection point of the connecting posts is hinged to the side of the wiring window.

[0009] Preferably, one set of the connecting posts is connected to the wiring surface by an elastic element, and the other set of the connecting posts is attached to the wiring window to contact the protective cover.

[0010] Preferably, a shielding plate for shielding interference is provided between the wiring surfaces, and the shielding plate is provided with a support frame for supporting the wiring surfaces.

[0011] Preferably, the cabinet is also provided with several sets of cable management tubes for cable entry and exit.

[0012] Preferably, the depth of the shielding groove is equal to the depth of the wiring window.

[0013] Preferably, the cabinet body and the cabinet door are connected by hinges.

[0014] This technical solution utilizes a metal protective cover, shielded cable trays, and shielding plates to reduce electromagnetic interference. The shielded cable trays, located between wiring windows, effectively isolate electromagnetic interference between different wiring windows, while the shielding plates further enhance the shielding effect of the entire wiring surface. This contributes to improving the stability and reliability of the equipment inside the electrical relay cabinet. The protective cover directly covers the wiring windows, protecting internal wiring from mechanical damage and external environmental influences. The design of the elastic elements and connecting posts ensures a tight contact between the protective cover and the wiring windows, guaranteeing the shielding effect of the cover. Cable management conduits are used for managing incoming and outgoing cables, helping to keep the wiring inside the cabinet neat and orderly, avoiding cable tangling and mess, and improving the maintainability and safety of the wiring.

[0015] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0016] 1. This utility model helps to reduce electromagnetic interference between wiring surfaces and wiring windows;

[0017] 2. The protective cover of this utility model does not affect normal maintenance and inspection when the wiring window is opened;

[0018] 3. This utility model helps to keep the wiring inside the cabinet neat and orderly, avoid cable tangling and mess, and improve the maintainability and safety of the wiring. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the unfolded structure of an electrical relay cabinet provided in Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the enlarged structure of an electrical relay cabinet provided in Embodiment 1 of the present invention;

[0022] Figure 3 This is a side sectional view of an electrical relay cabinet provided in Embodiment 1 of the present invention;

[0023] Icons: 1. Cabinet; 11. Wiring surface; 12. Wiring window; 13. Shielded cable tray; 2. Cabinet door; 3. Protective cover; 121. Connector; 122. Elastic component; 123. Connecting column; 4. Hinge; 5. Shielding plate; 51. Support frame; 14. Cable management tube. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and 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.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1

[0030] An electrical relay cabinet includes a cabinet body 1 and wiring surfaces 11 on both sides of the cabinet body 1. The wiring surfaces 11 are provided with a plurality of wiring windows 12 for wiring and shielding cable trays 13 provided between the wiring windows 12 for shielding interference. It also includes a cabinet door 2 for protecting the wiring surfaces 11. The cabinet door 2 is provided with a plurality of metal protective covers 3 for shielding interference from the wiring windows 12.

[0031] In this embodiment, the protective cover 3 covers the wiring window 12, and the wiring window 12 is provided with a metal connector 121 for maintaining connection with the protective cover 3.

[0032] In this embodiment, the connector 121 includes two sets of connecting posts 123 arranged at an included angle, and the connection point of the connecting posts 123 is hinged to the side of the wiring window 12.

[0033] In this embodiment, one set of the connecting posts 123 is connected to the wiring surface 11 by an elastic member 122, and another set of the connecting posts 123 is attached to the wiring window 12 to contact the protective cover 3.

[0034] In this embodiment, a shielding plate 5 for shielding interference is also provided between the wiring surfaces 11, and the shielding plate 5 is provided with a support frame 51 for supporting the wiring surfaces 11.

[0035] In this embodiment, the cabinet 1 is also provided with several sets of cable management tubes 14 for cable entry and exit.

[0036] In this embodiment, the depth of the shielding groove 13 is equal to the depth of the wiring window 12.

[0037] In this embodiment, the cabinet body 1 and the cabinet door 2 are connected by a hinge 4.

[0038] Working principle and usage:

[0039] This technical solution utilizes a metal protective cover 3, shielded cable tray 13, and shielding plate 5 to reduce electromagnetic interference. The shielded cable tray 13, located between the wiring windows 12, effectively isolates electromagnetic interference between different wiring windows 12, while the shielding plate 5 further enhances the shielding effect of the entire wiring surface 11. This contributes to improving the stability and reliability of the equipment inside the electrical relay cabinet. The protective cover 3 directly covers the wiring windows 12, protecting the internal wiring from mechanical damage and external environmental influences. The design of the elastic element 122 and connecting post 123 ensures tight contact between the protective cover 3 and the wiring windows 12, guaranteeing the shielding effect of the protective cover 3 on the wiring windows 12. The cable management tube 14 is used for managing incoming and outgoing cables, helping to keep the wiring inside the cabinet neat and orderly, avoiding cable tangling and mess, and improving the maintainability and safety of the wiring.

[0040] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electrical relay cabinet, comprising a cabinet body (1) and wiring surfaces (11) disposed on both sides of the cabinet body, characterized in that: The wiring surface (11) is provided with several sets of wiring windows (12) for wiring and shielding cable trays (13) provided between the wiring windows (12) for shielding interference; it also includes a cabinet door (2) for protecting the wiring surface, and the cabinet door (2) is provided with several sets of metal protective covers (3) for shielding interference from the wiring windows (12).

2. An electrical relay cabinet according to claim 1, characterized in that: The protective cover (3) covers the wiring window (12), and the wiring window (12) is provided with a metal connector (121) for maintaining connection with the protective cover (3).

3. An electrical relay cabinet according to claim 2, characterized in that: The connector (121) includes two sets of connecting posts (123) arranged at an angle, and the connection point of the connecting posts (123) is hinged to the side of the wiring window (12).

4. An electrical relay cabinet according to claim 3, characterized in that: One set of the connecting posts (123) is connected to the wiring surface (11) via an elastic element (122), and another set of the connecting posts (123) is attached to the wiring window (12) to contact the protective cover (3).

5. An electrical relay cabinet according to any one of claims 1-4, characterized in that: A shielding plate (5) for shielding interference is also provided between the wiring surfaces (11), and the shielding plate (5) is provided with a support frame (51) for supporting the wiring surfaces (11).

6. An electrical relay cabinet according to any one of claims 1-4, characterized in that: The cabinet (1) is also equipped with several sets of cable management tubes (14) for incoming and outgoing cables.

7. An electrical relay cabinet according to any one of claims 1-4, characterized in that: The depth of the shielded groove (13) is equal to the depth of the wiring window (12).

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