Modular power secondary circuit integration terminal block

Abstract

The utility model relates to the technical field of junction box, disclose a kind of modularization electric power secondary circuit integrated junction box, including box body and box cover, the box body lateral wall is fixedly connected with multiple connectors, multiple connector inside are slidably connected with sliding column, multiple sliding column one end is uniformly provided with limit component, the box body lateral wall is provided with connecting component;The limit component includes multiple limit plates, multiple limit plate one side is respectively fixedly connected in multiple sliding column one end, and multiple limit plate one side is uniformly fixedly connected with arc plate.In the utility model, by the lead to be connected into connector insertion extrusion arc plate, arc plate drives limit plate to move and make sliding column slide to connector inside, connecting ring is compressed first spring with sliding column movement, lead is in place after first spring reset and pushes connecting ring, sliding column back, limit plate is attached to lead outer wall and clamps lead, effectively limit the effect of clamping of different wire diameter lead is realized.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, and in particular to a modular power secondary circuit integrated junction box. Background Technology

[0002] In power systems, secondary circuits play a vital role in control, protection, and measurement. The reliability and stability of their wiring directly affect the safe operation of the power system. Integrated junction boxes provide standardized and convenient interfaces for the conductor connections of secondary circuits. Through modular design, they achieve standardization and integration of wiring, which not only simplifies the wiring operation process and reduces human error, but also improves wiring efficiency and facilitates later maintenance, repair, and line modification.

[0003] In existing junction boxes, there are usually multiple independent terminals inside. Each terminal has a screw and a metal washer. By tightening the screw with a screwdriver, the wires are clamped and fixed by the pressure between the screw and the metal washer.

[0004] However, in existing junction boxes, the clamping force of the terminals depends entirely on the tightness of the screws, resulting in poor adaptability to wires of different diameters. For thinner wires, insufficient clamping force can easily lead to loosening and poor contact, while for thicker wires, over-tightening can easily damage the wires. It is difficult to effectively limit the movement of cables of different diameters. To address this issue, a modular power secondary circuit integrated junction box is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a modular power secondary circuit integrated junction box, which aims to improve the problem of poor adaptability to conductors of different diameters in the prior art and the difficulty in effectively limiting the movement of cables of different diameters.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A modular power secondary circuit integrated junction box includes a box body and a box cover. Multiple connectors are fixedly connected to the side wall of the box body. Each of the multiple connectors is slidably connected to a sliding post. Each of the multiple sliding posts is provided with a limit component at one end. A connection component is provided on the side wall of the box body. The limiting assembly includes multiple limiting plates, one side of each of the multiple limiting plates is fixedly connected to one end of each of the multiple sliding columns, one side of each of the multiple limiting plates is fixedly connected to an arc-shaped plate, the outer wall of each of the multiple sliding columns is fixedly connected to a connecting ring, and the outer wall of each of the multiple sliding columns is sleeved with a first spring, the two ends of the multiple first springs are fixedly connected to the inside of the multiple connecting rings and the connector.

[0007] As a further description of the above technical solution: The connecting assembly includes a connecting plate and a connecting column. One side of the connecting plate is fixedly connected to the side wall of the box, and the bottom end of the connecting column is fixedly connected to the top of the connecting plate.

[0008] As a further description of the above technical solution: A fixing plate is fixedly connected to the side wall of the box cover, and a hollow column is fixedly connected to the bottom of the fixing plate. The hollow column is slidably connected to the outer wall of the connecting column.

[0009] As a further description of the above technical solution: A connecting buckle is fixedly connected to one side of the box lid, and a support block is fixedly connected to one side of the box body.

[0010] As a further description of the above technical solution: A fixed column is fixedly connected to one side of the support block, and a sliding rod is slidably connected inside the fixed column.

[0011] As a further description of the above technical solution: One end of the slide rod is fixedly connected to a positioning pin, which is slidably connected inside the fixed post and the connecting buckle.

[0012] As a further description of the above technical solution: A pull ring is fixedly connected to the other end of the slide rod, and a retaining ring is fixedly connected inside the fixed column.

[0013] As a further description of the above technical solution: The outer wall of the pull ring is fitted with a second spring, and the two ends of the second spring are respectively fixedly connected to the support block and the positioning pin.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the arc-shaped plate is squeezed by inserting the wire to be connected into the connector. The arc-shaped plate drives the limiting plate to move, causing the sliding column to slide into the connector. The connecting ring moves with the sliding column and compresses the first spring. After the wire is in place, the first spring resets and pushes the connecting ring and the sliding column back. The limiting plate fits against the outer wall of the wire and clamps the wire. This achieves the effect of effectively limiting and clamping wires of different diameters, solving the problem of poor adaptability to wires of different diameters and difficulty in effectively limiting cables of different diameters, thereby improving the applicability of the junction box.

[0015] 2. In this utility model, by pulling the pull ring to drive the slide rod to slide outward of the fixed post to compress the second spring, after the connecting buckle is aligned with the fixed post, the pull ring is released, the second spring resets and pushes the slide rod back to make the positioning pin insert into the connecting buckle and lock. This linkage structure realizes the effect of convenient connection and disassembly of the box cover and the box body, and solves the problem of cumbersome connection and disassembly of existing junction boxes and inconvenience for maintenance of the box body, thereby improving the maintenance convenience of the junction box. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a modular power secondary circuit integrated junction box proposed in this utility model; Figure 2 This is a schematic diagram of the side wall structure of a modular power secondary circuit integrated junction box proposed in this utility model; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 Exploded view of a modular power secondary circuit integrated junction box proposed in this utility model; Figure 5 This is a schematic diagram of the internal structure of the fixing column of a modular power secondary circuit integrated junction box proposed in this utility model.

[0017] Legend: 1. Box body; 2. Connector; 3. Sliding column; 4. Limiting plate; 5. Arc plate; 6. Connecting ring; 7. First spring; 8. Box cover; 9. Fixing plate; 10. Connecting plate; 11. Hollow column; 12. Connecting column; 13. Connecting buckle; 14. Support block; 15. Sliding rod; 16. Positioning pin; 17. Pull ring; 18. Snap ring; 19. Second spring; 20. Fixing column. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1 and Figure 3 The present invention provides an embodiment of a modular power secondary circuit integrated junction box, comprising a box body 1 and a box cover 8. The box body 1 is made of high-strength insulating flame-retardant plastic and has a partitioned wiring cavity inside, which can classify and store secondary circuit wires with different functions. Multiple connectors 2 are fixedly connected to the side wall of the box body 1, each connector 2 corresponding to an independent wiring channel, realizing modular access of multiple circuit wires. Each of the multiple connectors 2 has a sliding post 3 slidably connected inside, and each of the multiple sliding posts 3 has a limit component at one end. A connecting component is provided on the side wall of the box body 1. The limiting assembly includes multiple limiting plates 4, each fixedly connected to one end of multiple sliding columns 3 on one side. Each limiting plate 4 has an arc-shaped plate 5 fixedly connected to one side. The arc design can fit against the outer wall of the wire, increasing the contact area. Each sliding column 3 has a connecting ring 6 fixedly connected to its outer wall, serving as the force fulcrum of the first spring 7, ensuring that the spring force is evenly applied to the sliding column 3. Each sliding column 3 has a first spring 7 sleeved on its outer wall. Both ends of the first spring 7 are fixedly connected to the connecting ring 6 and the connector 2, respectively, to ensure stable transmission of spring force, prevent loosening or falling off, and ensure the continuity of the clamping effect.

[0020] Reference Figure 2 , Figure 4 and Figure 5 The connecting assembly includes a connecting plate 10 and a connecting post 12. One side of the connecting plate 10 is fixedly connected to the side wall of the box body 1, and the bottom end of the connecting post 12 is fixedly connected to the top of the connecting plate 10. A fixing plate 9 is fixedly connected to the side wall of the box cover 8, and a hollow post 11 is fixedly connected to the bottom of the fixing plate 9. The hollow post 11 is slidably connected to the outer wall of the connecting post 12 to achieve initial positioning of the box cover 8 and the box body 1, ensuring accurate alignment when the lid is closed. A connecting buckle 13 is fixedly connected to one side of the box cover 8, and a support block 14 is fixedly connected to one side of the box body 1. A fixing post 20 is fixedly connected to one side of the support block 14, and a sliding rod 15 is slidably connected inside the fixing post 20. A positioning pin 16 is fixedly connected to one end of the slide rod 15. The positioning pin 16 is slidably connected inside the fixing post 20 and the connecting buckle 13. It can automatically align with the slot of the connecting buckle 13 to achieve quick locking. A pull ring 17 is fixedly connected to the other end of the slide rod 15. A retaining ring 18 is fixedly connected inside the fixing post 20. A second spring 19 is sleeved on the outer wall of the pull ring 17. The two ends of the second spring 19 are fixedly connected to the support block 14 and the positioning pin 16, respectively. When the pull ring 17 is pulled, the spring is compressed. After being released, the elastic force pushes the positioning pin 16 to insert into the connecting buckle 13, thereby achieving a tight lock on the lid 8. When disassembling, simply pull the pull ring 17 to release the lock. The operation is efficient.

[0021] Working principle: When a secondary circuit wiring operation is required, the wire to be connected is first inserted into the connector 2. The wire presses against the arc plate 5, and the arc plate 5 moves the limiting plate 4 under force, causing the sliding column 3 to slide into the connector 2. At this time, the connecting ring 6 moves with the sliding column 3 and compresses the first spring 7. When the wire is inserted into the correct position, the first spring 7 is elastically reset, pushing the connecting ring 6 and the sliding column 3 back, so that the limiting plate 4 fits against the outer wall of the wire, restricting the position of the sliding column 3, thereby clamping the wire in the connector 2 and completing the wiring. The arc plate 5 can be adapted to wires of different diameters, thus achieving the effect of effectively limiting the cable. When it is necessary to connect and disassemble the lid 8 and the body 1, first, align the hollow column 11 at the bottom of the side wall fixing plate 9 of the lid 8 with the connecting column 12 on the side wall connecting plate 10 of the body 1 and insert it, so that the hollow column 11 slides along the outer wall of the connecting column 12 to complete the initial positioning of the lid 8 and the body 1. At this time, pull the pull ring 17 to drive the slide rod 15 to slide outward towards the fixing column 20 and compress the second spring 19. After the connecting buckle 13 is aligned with the fixing column 20, release the pull ring 17. The second spring 19 returns to its original position and pushes the slide rod 15 back, so that the positioning pin 16 is inserted into the connecting buckle 13 and locks the connecting buckle 13 and the lid 8, so that the lid 8 is tightly covered on the body 1, which facilitates the maintenance of the inside of the body 1.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular power secondary circuit integrated junction box, comprising a box body (1) and a box cover (8), characterized in that: The side wall of the box (1) is fixedly connected to multiple connectors (2), and each of the multiple connectors (2) is slidably connected to a sliding column (3). Each of the multiple sliding columns (3) is provided with a limit component at one end, and the side wall of the box (1) is provided with a connecting component. The limiting assembly includes multiple limiting plates (4), one side of each of the multiple limiting plates (4) is fixedly connected to one end of each of the multiple sliding columns (3), one side of each of the multiple limiting plates (4) is fixedly connected to an arc plate (5), the outer wall of each of the multiple sliding columns (3) is fixedly connected to a connecting ring (6), the outer wall of each of the multiple sliding columns (3) is sleeved with a first spring (7), and the two ends of each of the multiple first springs (7) are fixedly connected to the inside of the multiple connecting rings (6) and the connector (2).

2. The modular power secondary circuit integrated junction box according to claim 1, characterized in that: The connecting assembly includes a connecting plate (10) and a connecting post (12). One side of the connecting plate (10) is fixedly connected to the side wall of the box body (1), and the bottom end of the connecting post (12) is fixedly connected to the top of the connecting plate (10).

3. The modular power secondary circuit integrated junction box according to claim 2, characterized in that: A fixing plate (9) is fixedly connected to the side wall of the box cover (8), and a hollow column (11) is fixedly connected to the bottom of the fixing plate (9). The hollow column (11) is slidably connected to the outer wall of the connecting column (12).

4. The modular power secondary circuit integrated junction box according to claim 3, characterized in that: A connecting buckle (13) is fixedly connected to one side of the box cover (8), and a support block (14) is fixedly connected to one side of the box body (1).

5. A modular power secondary circuit integrated junction box according to claim 4, characterized in that: A fixed column (20) is fixedly connected to one side of the support block (14), and a sliding rod (15) is slidably connected inside the fixed column (20).

6. A modular power secondary circuit integrated junction box according to claim 5, characterized in that: One end of the slide rod (15) is fixedly connected to a positioning pin (16), which is slidably connected inside the fixed post (20) and the connecting buckle (13).

7. A modular power secondary circuit integrated junction box according to claim 6, characterized in that: A pull ring (17) is fixedly connected to the other end of the slide rod (15), and a retaining ring (18) is fixedly connected inside the fixed column (20).

8. A modular power secondary circuit integrated junction box according to claim 7, characterized in that: The outer wall of the pull ring (17) is fitted with a second spring (19), and the two ends of the second spring (19) are respectively fixedly connected to the support block (14) and the positioning pin (16).

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