Intensive bus jack box with low insertion force

By designing an adjustment mechanism and a U-shaped fixing plate, the low-insertion-force dense busbar plug-in box solves the problem of complex installation of traditional busbar plug-in boxes, achieving efficient and safe connection conductor fixing, and adapting to different specification requirements.

CN223797882UActive Publication Date: 2026-01-13QINGDAO DONGSHAN GRP BUSBAR INTELLIGENT MFG CO LTD
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Patent Information

Application Number
CN202520301066.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-01-13
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Traditional busbar junction boxes require cumbersome bolt tightening during installation, resulting in high safety risks for working at heights and low installation efficiency.

Method used

A low-insertion-force dense busbar junction box is designed, which adopts an adjustment mechanism and a U-shaped fixing plate. Through the combination of fasteners and insulation plates, multiple connecting conductors can be quickly fixed, simplifying the installation process.

Benefits of technology

It improves installation efficiency, reduces safety risks, enhances fixing stability and insulation performance, and adapts to the needs of busbar plug-in boxes of different specifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a low insertion force dense bus jack box, which belongs to the technical field of bus jack boxes, and comprises a splicer, the splicer comprises two fixed plates arranged on a rack, the two fixed plates are symmetrically arranged and can slide oppositely or oppositely, a plurality of insulating plates are arranged between the two fixed plates, and the insulating plates are connected with the splicer. Storage grooves are formed between every two adjacent insulating plates and between the fixing plate and the adjacent insulating plate, and the storage grooves are used for placing connecting conductors; the adjusting mechanism is used for locking the two fixing plates and the plurality of insulating plates; according to the utility model, a plurality of connecting conductors can be quickly fixed through the adjusting mechanism, so that the installation efficiency of the connecting conductors is effectively improved, and the probability of accidents during the installation of the connecting conductors can be effectively reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of busbar plug-in box equipment, specifically to a low-insertion-force dense busbar plug-in box. Background Technology

[0002] In power distribution systems, dense busbar junction boxes play a crucial role as key components for power transmission and distribution. This is especially true as modern power systems increasingly demand higher efficiency, reliability, and security.

[0003] In the traditional busbar junction box, fixing multiple busbar conductors usually involves securing each individual busbar conductor with bolts during the connection process. However, installing and fixing multiple busbar conductors requires tedious tightening of multiple bolts.

[0004] However, since the installation of plug-in boxes and busbars is mostly done at height, there is always a risk of safety accidents. The more complex the process, the higher the risk. The demand for quick, time-saving, and labor-saving installation is particularly prominent. Therefore, simplifying the installation process has become an urgent technical problem to be solved in the field of power distribution systems. Utility Model Content

[0005] In view of this, the present invention provides a low-insertion-force dense busbar plug box. The present invention can quickly fix multiple connecting conductors through an adjustment mechanism, thereby effectively increasing the installation efficiency of the connecting conductors and thus effectively reducing the probability of accidents during the installation of connecting conductors.

[0006] To solve the above technical problems, this utility model provides a low insertion force dense busbar plug-in box, including a connector. The connector includes two fixed plates mounted on a frame. The two fixed plates are symmetrically arranged and can slide relative to or away from each other. When the two fixed plates slide relative to each other, they can clamp and fix multiple connecting conductors. Several insulating plates are also placed between the two fixed plates. The insulating plates are arranged in parallel with the two fixed plates. A storage groove is formed between every two adjacent insulating plates and between a fixed plate and an adjacent insulating plate. The storage groove is used to place the connecting conductors.

[0007] It also includes an adjustment mechanism for locking the two fixed plates and several insulating plates, which allows the two fixed plates to slide relative to each other.

[0008] The adjustment mechanism includes through holes provided through two fixed plates and several insulating plates, through which fasteners are placed. The fasteners can be bolts or other structures that can bring the two fixed plates together.

[0009] The fastener includes a nut and a movable rod on the nut. The movable rod is coaxially arranged with the nut and has a threaded rod. The threaded rod is coaxially arranged at the end of the movable rod. A corresponding end cap is also provided on the threaded rod. The end cap has a threaded hole corresponding to the threaded rod. The threaded rod can be screwed into the threaded hole. The end cap and the nut are used to clamp two fixing plates and several insulating plates.

[0010] The cross-sections of the movable rod and the perforation are both fitted polygonal structures, so the movable rod will not rotate within the perforation.

[0011] The end cap is also equipped with a dial ring, which makes it easy to rotate the end cap. The dial ring is marked with a line, which makes it easy to control the angle of rotation of the end cap.

[0012] The fixing plate has a U-shaped structure with multiple elongated holes through the bottom. A lead screw is vertically installed on the frame via a threaded connection. The height of the lead screw on the frame is adjustable. The lead screw is located inside the elongated holes and can limit the sliding trajectory of the fixing plate through the elongated holes. A limiting piece is also provided at the end of the lead screw corresponding to the elongated holes to prevent the fixing plate from falling off the frame.

[0013] Rubber layers are provided on both sides of the insulating board and the inner side of the fixing plate. The rubber layers can effectively provide insulation and make the connecting conductors more secure.

[0014] Each set of rubber layers is used to clamp the connecting conductor. A V-shaped relief groove is formed between the ends of each set of rubber layers, so that the clamping sheet can pass through the relief groove more smoothly when inserted into the placement groove.

[0015] An insulating plate is provided between the two fixed plates. Two storage slots are formed between the insulating plate and the two fixed plates. Two connecting conductors are placed in each storage slot. That is, the two fixed plates and the insulating plate can fix the two sets of connecting conductors.

[0016] Three insulating plates are provided between the two fixed plates, and four storage slots are formed between the three insulating plates and the two fixed plates. Each storage slot contains a connecting conductor, so that the two fixed plates and the three insulating plates can fix the three insulating plates.

[0017] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0018] 1. Improved Installation Efficiency: The designed adjustment mechanism allows for quick and easy fixing of multiple connecting conductors, eliminating the need for tedious individual tightening of multiple bolts. This significantly simplifies the installation process and improves work efficiency. This improvement is particularly suitable for high-altitude work environments, effectively reducing safety risks during installation.

[0019] 2. Enhanced Safety: The simplified installation process reduces the physical exertion and time costs for operators, thereby lowering the risk of accidents caused by improper operation or fatigue. Simultaneously, the design of the adjustment mechanism makes the fixing process more stable and reliable, further enhancing overall safety.

[0020] 3. Flexible Adaptability: The number of fixing plates and insulating plates in this utility model can be flexibly adjusted to accommodate different numbers of connecting conductors. By changing the number of insulating plates, different numbers of storage slots can be formed, thereby meeting the installation requirements of busbar plug-in boxes of different specifications.

[0021] 4. Structural Stability: The fixing plate adopts a U-shaped structure and is limited by the cooperation of a lead screw and an oblong hole, ensuring the stability of the fixing plate during sliding. At the same time, the rubber layer not only enhances the insulation performance but also improves the clamping stability of the connecting conductor, preventing the connecting conductor from loosening or falling off during use.

[0022] 5. Ease of Operation: The fasteners in the adjustment mechanism are rationally designed, and the cross-section of the movable rod and the through hole adopts a polygonal structure, effectively preventing the movable rod from rotating within the through hole, making the tightening process smoother. In addition, the dial ring and marking lines on the end cap make it easy for operators to control the rotation angle of the end cap, further improving the ease of operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a low-insertion-force dense busbar plug-in box according to the present invention;

[0024] Figure 2 This is a structural schematic diagram of the fastener section of this utility model;

[0025] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A;

[0026] Figure 4 This is a structural schematic diagram of the connector according to Embodiment 1 of this utility model;

[0027] Figure 5 This utility model Figure 4 Schematic diagram of the structure at point B;

[0028] Figure 6 This is a schematic diagram of the connector according to Embodiment 2 of this utility model;

[0029] Figure 7 This is a schematic diagram of the prior art of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100. Rack;

[0032] 200. Fixing plate; 201. Insulating plate; 202. Storage slot; 203. Connecting conductor; 204. Rubber layer; 205. Relief slot;

[0033] 300. Adjustment mechanism; 301. Through hole; 302. Fastener; 303. Nut; 304. Movable rod; 305. Threaded rod; 306. End cap; 307. Threaded hole; 308. Dial ring; 309. Marking line;

[0034] 400, oblong hole; 401, lead screw; 402, limiting plate. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-6 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0036] Example 1;

[0037] A low-insertion-force dense busbar patch box, such as Figure 3 , 4 As shown, the device includes a connector housed within a frame 100. The connector includes a support frame mounted on the frame 100. The support frame has a concave structure and is fixed to the frame 100 by bolts. Two support frames are arranged in parallel. Each support frame has a slidable fixing plate 200. The two fixing plates 200 can slide relative to each other or slide back to back. An insulating sheet is placed between the two fixing plates 200. Two storage slots 202 are formed between the two fixing plates 200 and the insulating sheet. Each storage slot 202 can be used to place two connecting conductors 203. A square hole is also provided through the frame 100 corresponding to the connector. Phases A, B, C, and N can pass through the hole and connect to multiple connecting conductors 203. The device also includes an adjustment mechanism 300 for locking the two fixing plates 200 and several insulating plates 201.

[0038] In use, the two sets of connecting conductors 203 are placed in the two storage slots 202 respectively, and then the two fixing plates 200 are used to bring them together, so that the two fixing plates 200 and an insulating sheet can fix the two sets of connecting conductors 203.

[0039] Specifically, the adjustment mechanism 300 includes a through hole 301 that passes through the two fixed plates 200 and the insulating plate 201. The through hole 301 is used to place a fastener 302, which can be a fastening bolt. By fastening the bolt, the two fixed plates 200 can be brought together, thereby forming a fixing effect on the connecting conductor 203.

[0040] Meanwhile, fastener 302 can also be composed of movable rod 304, nut 303, threaded rod 305, and end cap 306, such as Figure 2 As shown, the movable rod 304 is located inside the through hole 301. Both the through hole 301 and the movable rod 304 have polygonal cross-sections, so the movable rod 304 will not rotate inside the through hole 301. The end of the movable rod 304 is coaxially connected to the nut 303. The end of the movable rod 304 away from the nut 303 is also coaxially connected to the threaded rod 305. Correspondingly, the threaded rod 305 is provided with a threaded hole 307 on the end cap 306. The end cap 306 can be screwed onto the threaded rod 305 through the threaded hole 307, so that the end of the end cap 306 and the nut 303 can move together gradually, thereby causing the two fixed plates 200 to move relative to each other to form a clamping effect.

[0041] It is worth mentioning that the pitch of the threaded rod 305 and the threaded hole 307 is specifically set, that is, the end cap 306 can move 4mm for every one revolution of the end cap 306, and the end cap 306 can move 1mm for every 90 degrees of rotation.

[0042] like Figure 4 As shown, a dial ring 308 is also fixedly provided at the end of the end cap 306. A marking line 309 is also provided on the outer wall surface of the dial ring 308. That is, the number of rotations of the end cap 306 can be clearly observed through the marking line, so as to accurately control the distance of movement of the end cap 306.

[0043] Based on the above structure, the fixing plate 200 can also be configured as a U-shaped structure, such as... Figure 4 , 5 As shown, the two fixing plates 200 are symmetrically arranged. The bottom of the fixing plate 200 is provided with multiple elongated holes 400. The length direction of the elongated holes 400 is consistent with the length direction of the fastener 302. A lead screw 401 is vertically installed on the frame 100 by thread engagement. The lead screw 401 is located in the elongated holes 400. The end of the lead screw 401 is also provided with a limiting piece 402 corresponding to the elongated holes 400. The limiting piece 402 can prevent the fixing plate 200 from falling off the support frame.

[0044] The upper surface of the limiting plate 402 can be provided with a force-applying groove to fix the lead screw 401 to the frame 100. When fixing the connecting conductor 203, the fixing plate 200 can slide on the support frame through the fastener 302. After the fastener 302 fixes the two fixing plates 200, the lead screw 401 is moved down through the limiting plate 402 until the limiting plate 402 abuts against the fixing plate 200. In this way, the position of the fixing plate 200 can be reinforced by the limiting plate 402, so that the position of the fixing plate 200 is more stable. When it is necessary to disassemble the connecting conductor 203, the lead screw 401 must first be rotated to make the limiting plate 402 cancel the fixing effect on the fixing plate 200, and then the connecting conductor 203 can be disassembled through the fastener 302.

[0045] It is worth mentioning that, such as Figure 3 As shown, rubber layers 204 are provided on both sides of the insulating plate 201 and the inner side of the fixing plate 200. That is, each storage slot 202 has a set of rubber layers 204. Each set of rubber layers 204 is used to clamp the connecting conductor 203. The rubber layers 204 can not only avoid damage caused by hard contact with the connecting conductor 203, but also increase the friction between the rubber layers and the connecting conductor 203, thereby making the clamping of the connecting conductor 203 more stable.

[0046] Meanwhile, a V-shaped relief groove 205 is formed between the ends of each rubber layer 204. Specifically, in this embodiment, the relief groove 205 is set at the top of the rubber layer 204 and is chamfered. So when the connecting conductor 203 is inserted into the storage slot 202, if there is a slight deviation, the bottom of the connecting conductor 203 can abut against the V-shaped relief groove 205, thereby automatically correcting the deviation and effectively increasing the installation efficiency of the connecting conductor 203.

[0047] Example 2;

[0048] The difference from Example 1 is that, as Figure 6 As shown, three insulating plates 201 are placed between the two fixed plates 200, forming four storage slots 202 between the two fixed plates 200 and the three insulating plates 201. Each storage slot 202 can be used to place a connecting conductor 203. After the two fixed plates 200 move relative to each other, the two fixed plates 200 and the three insulating plates 201 can clamp and fix the four connecting conductors 203.

[0049] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 according to the specific circumstances.

[0050] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A low-insertion-force dense busbar patch panel, comprising a connector, characterized in that: The connector includes two fixed plates (200) mounted on a frame (100). The two fixed plates (200) are symmetrically arranged and can slide relative to or away from each other. A number of insulating plates (201) are placed between the two fixed plates (200). A storage groove (202) is formed between each pair of adjacent insulating plates (201) and between the fixed plate (200) and the adjacent insulating plate (201). The storage groove (202) is used to place the connecting conductor (203). It also includes an adjustment mechanism (300) for locking the two fixed plates (200) and several insulating plates (201).

2. The low insertion force dense busbar plug-in box as described in claim 1, characterized in that: The adjustment mechanism (300) includes through holes (301) provided through two fixed plates (200) and several insulating plates (201), and fasteners (302) are placed in the through holes (301).

3. The low insertion force dense busbar plug-in box as described in claim 2, characterized in that: The fastener (302) includes a nut (303) and a movable rod (304) provided on the nut (303). The movable rod (304) is provided with a threaded rod (305), and an end cap (306) is provided corresponding to the threaded rod (305). The end cap (306) is provided with a threaded hole (307) corresponding to the threaded rod (305). The end cap (306) and the nut (303) are used to clamp the two fixing plates (200) and several insulating plates (201).

4. The low insertion force dense busbar plug-in box as described in claim 3, characterized in that: The cross-sections of the movable rod (304) and the perforation (301) are both matching polygonal structures.

5. A low-insertion-force dense busbar plug-in box as described in claim 3, characterized in that: The end cap (306) is also provided with a dial ring (308), and the dial ring (308) is provided with a marking line (309).

6. The low insertion force dense busbar plug-in box as described in claim 1, characterized in that: The fixing plate (200) has a U-shaped structure. The bottom of the fixing plate (200) is provided with multiple elongated holes (400). A lead screw (401) is vertically installed on the frame (100) by means of threaded engagement. The lead screw (401) is located inside the elongated holes (400). The end of the lead screw (401) is also provided with a limiting piece (402) corresponding to the elongated holes (400).

7. A low-insertion-force dense busbar plug-in box as described in claim 1, characterized in that: The insulating plate (201) has rubber layers (204) on both sides and the inner side of the fixing plate (200).

8. A low-insertion-force dense busbar plug-in box as described in claim 7, characterized in that: Each set of rubber layers (204) is used to clamp the connecting conductor (203), and a V-shaped relief groove (205) is formed between the ends of each set of rubber layers (204).

9. A low-insertion-force dense busbar plug-in box as described in claim 1, characterized in that: An insulating plate (201) is provided between the two fixed plates (200), and two storage slots (202) are formed between the insulating plate (201) and the two fixed plates (200), and two connecting conductors (203) are placed in each storage slot (202).

10. A low-insertion-force dense busbar plug-in box as described in claim 1, characterized in that: Three insulating plates (201) are provided between the two fixed plates (200), and four storage slots (202) are formed between the three insulating plates (201) and the two fixed plates (200). A connecting conductor (203) is placed in each storage slot (202).