A terminal strip connection device for an electrical distribution cabinet

Abstract

This utility model relates to the field of terminal wiring technology for electrical cabinets, and more particularly to a terminal block wiring device for distribution cabinets. Its technical solution includes: a cabinet body, a back plate fixed inside the cabinet body, a mounting cavity located on the front side of the back plate inside the cabinet body, and a cable routing cavity located on the rear side of the back plate. A cable groove is formed on the back plate, a cable frame is fixed on the front side of the back plate corresponding to the cable groove, and mounting brackets are fixed on the front side of the back plate above and below the cable frame. A fixing groove is formed inside the cable frame, and a fixing component for fixing the wire is provided in the fixing groove. During wiring, the wire is passed through the cable frame, and the positioning plate inside the cable frame slides to compress and fix the position where the wire passes through, maintaining the stability of the wire and preventing loosening of the wire at the terminal connection during installation and pulling, thus improving connection stability.

Description

Technical Field

[0001] This utility model relates to the field of terminal wiring technology for power distribution cabinets, specifically a terminal block wiring device for power distribution cabinets. Background Technology

[0002] Terminal wiring in a distribution cabinet refers to the standardized and reliable connection of various wires to designated terminal blocks or equipment terminals within the distribution cabinet, according to electrical schematics and wiring diagrams. This is a core aspect of the installation, commissioning, and operation of the distribution cabinet, directly impacting system safety, stable equipment operation, and ease of subsequent maintenance.

[0003] When wiring and connecting wires, the connection between the wires and terminals mainly relies on the locking of the terminal connectors. This locking is achieved by squeezing the ends of the wires. Since the frictional force of the metal conductors at the ends of the wires is relatively small, they are prone to loosening under certain pulling, which can lead to unstable connections. Especially during the installation of wiring and subsequent monitoring and maintenance, the wires are often pulled to ensure the wiring is tight. Without auxiliary wiring fixation, the probability of loose connections will be greatly increased. Therefore, it is necessary to design an auxiliary fixing structure for terminal wiring. Utility Model Content

[0004] The purpose of this utility model is to provide a terminal block wiring device for power distribution cabinets to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a cabinet, a back panel fixed inside the cabinet, an installation cavity located inside the cabinet and on the front side of the back panel, and a cable routing cavity located on the rear side of the back panel. A cable groove is formed on the back panel, a wire frame is fixed on the front side of the back panel at a position corresponding to the cable groove, and a mounting bracket is fixed on the front side of the back panel above and below the wire frame. A fixing groove is formed inside the wire frame, and a fixing component for fixing the wire is provided in the fixing groove.

[0006] Preferably, the fixing component includes a positioning block and a positioning plate. The positioning block is fixed in the fixing groove and is symmetrically distributed vertically. The positioning plate is slidably connected in the positioning groove and is located between the positioning blocks. A threaded rod is rotatably connected to the front end of the fixing groove, and the end of the threaded rod is threadedly connected in the positioning plate.

[0007] Preferably, the front end of the threaded rod extends out of the wire frame and is fixed with a knob, which is rotatably connected to the front end of the wire frame, and three positioning plates are provided in each of the fixing slots.

[0008] Preferably, the gap between the positioning blocks is in the shape of a trumpet, and an anti-slip pad is fixed on the side closest to each other. The outer side of the positioning plate is an inclined structure that is adapted to the positioning blocks.

[0009] Preferably, the wire frame has through holes at equal intervals on both the upper and lower sides, and a guide rod is fixed in the fixing groove and aligned with the four corners of the positioning plate, with the end of the guide rod slidably connected to the positioning plate.

[0010] Preferably, the back panel has wire clips fixed to its back side and is evenly distributed. The back of the cabinet is hinged to a rear door panel and the front of the cabinet is hinged to a front door panel. A connection hole is provided on the inner side of the cabinet, with the two ends of the connection hole located on the side wall of the mounting cavity and the side wall of the cable routing cavity, respectively.

[0011] Compared with the prior art, the beneficial effects of this utility model are: during the wiring process, the wire is passed through the wire frame, and the positioning plate inside the wire frame slides to squeeze and fix the position where the wire passes through, keeping the wire stable and avoiding the phenomenon of loosening at the connection between the wire and the terminal during installation and pulling, thus improving the connection stability. Attached Figure Description

[0012] Figure 1 This is a side sectional view of a terminal block wiring device for a power distribution cabinet according to the present invention.

[0013] Figure 2 This is a schematic diagram of the front appearance of a terminal block wiring device for a power distribution cabinet according to the present invention.

[0014] Figure 3 This utility model relates to a terminal block wiring device for a power distribution cabinet. Figure 1 Enlarged structural diagram at point A in the middle;

[0015] Figure 4 This is a schematic diagram of the wire frame structure of a terminal block wiring device for a power distribution cabinet according to the present invention.

[0016] In the diagram: 1. Cabinet body; 11. Back panel; 12. Cable clip; 13. Cable tray; 2. Wire frame; 21. Through hole; 22. Positioning block; 23. Positioning plate; 24. Threaded rod; 25. Knob; 26. Guide rod; 3. Mounting bracket; 4. Rear door panel; 5. Connection hole. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-4This utility model provides a technical solution: it includes a cabinet 1, a back panel 11 fixed inside the cabinet 1, an installation cavity is provided inside the cabinet 1 and on the front side of the back panel 11, and a cable routing cavity is provided on the rear side of the back panel 11. A cable groove 13 is provided on the back panel 11. A wire frame 2 is fixed on the front side of the back panel 11 and at a position corresponding to the cable groove 13. An installation bracket 3 is fixed on the front side of the back panel 11 and at a position above and below the wire frame 2. A fixing groove is provided inside the wire frame 2. A fixing component for fixing wires is provided in the fixing groove. Wire buckles 12 are fixed on the back of the back panel 11 and are evenly distributed. A rear door panel 4 is hinged to the back of the cabinet 1 and a front door panel is hinged to the front. A connection hole 5 is provided inside the cabinet 1, with the two ends of the connection hole 5 located on the side wall of the installation cavity and the side wall of the cable routing cavity, respectively.

[0019] The fixing assembly includes positioning blocks 22 and positioning plates 23. The positioning blocks 22 are fixed in the fixing groove and are symmetrically distributed vertically. The positioning plates 23 are slidably connected in the fixing groove and are located between the positioning blocks 22. A threaded rod 24 is rotatably connected to the front end of the fixing groove. The end of the threaded rod 24 is threadedly connected to the positioning plate 23. The front end of the threaded rod 24 extends out of the wire frame 2 and is fixed with a knob 25. The knob 25 is rotatably connected to the front end of the wire frame 2. Three positioning plates 23 are provided in each fixing groove. The gap between the positioning blocks 22 is a funnel-shaped structure, and an anti-slip pad is fixed on the side closest to each other. The outer side of the positioning plate 23 is a bevel structure that matches the positioning blocks 22. The wire frame 2 has through holes 21 equidistantly opened on both the upper and lower sides. A guide rod 26 is fixed in the fixing groove and aligned with the four corners of the positioning plate 23. The end of the guide rod 26 is slidably connected in the positioning plate 23.

[0020] Working principle: After the terminal wiring is installed, the terminal is fixed on the mounting bracket 3, and the wire end is connected to the terminal wiring port. At the same time, the wire is passed through the wire frame 2 and the wire groove 13, and then the wire is fixed by the wire buckle 12 behind the back plate 11 to achieve neat wiring. A rear door panel 4 that can be opened is set on the rear side of the cabinet 1, which makes it more convenient for wiring or maintenance. Secondly, in order to avoid the wire pulling during wiring and causing the connection between the wire end and the terminal to loosen, the positioning plate 23 can be slid to insert between the positioning blocks 22, thereby achieving the purpose of squeezing and fixing the wire. Therefore, when the wire is pulled during wiring, the pulling force will not be transmitted to the connection between the terminal and the wire, ensuring the wiring stability. In addition, the squeezed wire part has an outer rubber sleeve, making the squeezing and fixing more stable. In the whole process, the rotation of the knob 25 is used to drive the threaded rod 24 to rotate, and the guide rod 26 is used to limit the extension and retraction of the positioning plate 23.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A terminal block wiring device for a power distribution cabinet, comprising a cabinet (1), characterized in that: A back panel (11) is fixed inside the cabinet (1). An installation cavity is provided inside the cabinet (1) and on the front side of the back panel (11). A cable routing cavity is provided on the rear side of the back panel (11). A cable groove (13) is provided on the back panel (11). A wire frame (2) is fixed on the front side of the back panel (11) and at a position corresponding to the cable groove (13). An installation bracket (3) is fixed on the front side of the back panel (11) and at a position above and below the wire frame (2). A fixing groove is provided inside the wire frame (2). A fixing component for fixing the wire is provided in the fixing groove.

2. The terminal block wiring device for a power distribution cabinet according to claim 1, characterized in that: The fixing component includes a positioning block (22) and a positioning plate (23). The positioning block (22) is fixed in the fixing groove and is symmetrically distributed vertically. The positioning plate (23) is slidably connected in the positioning plate (23) and is located between the positioning blocks (22). A threaded rod (24) is rotatably connected to the front end of the fixing groove. The end of the threaded rod (24) is threadedly connected in the positioning plate (23).

3. A terminal block wiring device for a power distribution cabinet according to claim 2, characterized in that: The threaded rod (24) extends out of the wire frame (2) and is fixed with a knob (25). The knob (25) is rotatably connected to the front end of the wire frame (2). Each of the fixed slots is provided with three positioning plates (23).

4. A terminal block wiring device for a power distribution cabinet according to claim 2, characterized in that: The gap between the positioning blocks (22) is in the shape of a trumpet, and an anti-slip pad is fixed on the side closest to each other. The outer side of the positioning plate (23) is an inclined structure that is compatible with the positioning blocks (22).

5. A terminal block wiring device for a power distribution cabinet according to claim 2, characterized in that: The wire frame (2) has through holes (21) at equal intervals on both the upper and lower sides. A guide rod (26) is fixed in the fixing groove and aligned with the four corners of the positioning plate (23). The end of the guide rod (26) is slidably connected in the positioning plate (23).

6. A terminal block wiring device for a power distribution cabinet according to claim 1, characterized in that: The back panel (11) has wire buckles (12) fixed on the back and is evenly distributed. The cabinet (1) has a rear door panel (4) hinged to the back and a front door panel hinged to the front. The cabinet (1) has a connection hole (5) on the inner side. The two ends of the connection hole (5) are located on the side wall of the mounting cavity and the side wall of the cable routing cavity, respectively.

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