Expansion type bus connector
By introducing a reinforced anti-shift structure and a rubber sleeve into the bus connector, the problems of positional displacement and insulation caused by frequent insertion and removal of the bus connector are solved, thereby improving the stability of the contact area and the insulation safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIRUN ELECTRICITY TECH CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-12
AI Technical Summary
Existing extended bus connectors, after frequent mating and unmating, experience weakened contact finger elasticity and positional shift, resulting in reduced contact area and potentially causing overheating and insulation breakdown.
The system employs a reinforced upper anti-slip plate and a reinforced lower anti-slip plate, combined with an anti-slip plate sleeve. Through the anti-slip plate reinforcement posts and snap ring structure, the positional displacement of the female connector assembly is limited, and the rubber anti-slip plate sleeve provides cushioning and insulation performance.
It effectively prevents the female connector assembly from shifting due to frequent insertion and removal, ensures stable contact area, improves insulation safety, and avoids overheating and insulation layer breakdown.
Smart Images
Figure CN224232998U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an extended busbar connector. Background Technology
[0002] Extended busbar connectors are used in equipment such as ring main units and gas-insulated switchgear to achieve flexible expansion and multi-branch series connection of busbars. Their main function is to provide a modular connection solution for power distribution systems and support the combined expansion of different cabinets. Existing extended busbar connectors have internal female connector components that, after frequent mating and unmating, have weakened contact finger elasticity or positional displacement, resulting in reduced contact area and overheating. Displacement may also cause uneven gaps between the female connector components and the connector insulation shell, leading to an unbalanced electric field distribution, which may break down the insulation layer after long-term operation. Improvements and optimizations are needed to address these issues. Utility Model Content
[0003] To address the above problems, the technical problem to be solved by this utility model is to provide an extended bus connector.
[0004] The technical solution adopted by this utility model of extended bus connector is characterized by including a connector insulating shell, a female connector assembly disposed within the connector insulating shell, a reinforced anti-displacement upper plate, a reinforced anti-displacement lower plate, and an anti-displacement plate cover sleeve. The connector insulating shell includes a shell middle portion and tapered insertion portions disposed at both ends of the shell middle portion. The connector insulating shell is provided with shell mating holes, and the shell middle portion is provided with a shell outer positioning groove. The female connector assembly includes three arc-shaped mating pieces arranged in a circular arc and mating piece sleeves pressed against the arc-shaped mating pieces. Connector insertion holes for plug insertion are formed between the three arc-shaped mating pieces. The arc-shaped mating pieces are provided with mating piece anti-displacement holes in the middle portion. The shell outer positioning groove is provided with shell through holes at intervals around the arc, communicating with the mating piece anti-displacement holes.
[0005] Both the reinforced anti-slip upper plate and the reinforced anti-slip lower plate are semi-circular arc structures, with anti-slip plate reinforcing posts and anti-slip plate inner arc grooves for fitting outside the positioning groove of the housing. The anti-slip plate reinforcing posts are sequentially inserted through the housing through holes and the anti-slip holes of the insert pieces. The anti-slip plate wrapping sleeve is fitted outside the reinforced anti-slip upper plate and the reinforced anti-slip lower plate and placed inside the positioning groove of the housing.
[0006] The number of anti-displacement holes for the insert is 2.
[0007] It also includes a retaining ring, and both the reinforced anti-slip upper plate and the reinforced anti-slip lower plate have anti-slip plate slots on their outer sides for the retaining ring to engage.
[0008] It also includes a locking sleeve, wherein the outer diameter of the anti-slip plate sleeve is the same as the outer diameter of the middle part of the housing, the outer wall of the anti-slip plate sleeve is provided with an external thread, the outer wall of the middle part of the housing is provided with an external thread, and the inner wall of the locking sleeve is provided with an internal thread that is threaded to the external thread of the sleeve and the external thread of the housing respectively.
[0009] The anti-movement plate cover is made of rubber.
[0010] The advantages of this extended bus connector are: the anti-displacement plate reinforcement posts on the reinforced anti-displacement upper plate and the reinforced anti-displacement lower plate can provide longitudinal restriction on the female connector assembly, effectively preventing the female connector assembly from shifting position due to frequent insertion and removal, ensuring stable contact area, and improving insulation safety. Attached Figure Description
[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0012] Figure 1 This is a structural schematic diagram of the extended busbar connector of this utility model;
[0013] Figure 2 This is an exploded view of the extended busbar connector of this utility model;
[0014] Figure 3 This is a schematic diagram of the structure of the connector insulating housing of this utility model;
[0015] Figure 4 This is a structural schematic diagram of the female connector assembly of this utility model;
[0016] Figure 5 This is a structural schematic diagram of the reinforced anti-slip upper plate of this utility model. Detailed Implementation
[0017] like Figure 1-5As shown, the extended bus connector of this utility model includes a connector insulating housing 1, a female connector assembly 2 disposed within the connector insulating housing 1, a reinforced anti-shift upper plate 3, a reinforced anti-shift lower plate 4, and an anti-shift plate cover 5. The connector insulating housing 1 includes a housing middle portion 10 and tapered insertion portions 11 disposed at both ends of the housing middle portion 10. The connector insulating housing 1 is provided with a housing mating hole 12, and the housing middle portion 10 is provided with a housing outer positioning groove 13. The female connector assembly 2 includes three arc-shaped mating pieces 15 arranged in an arc and mating piece sleeves 16 pressed against the arc-shaped mating pieces 15. The three arc-shaped mating pieces 15 form a spacer for... The connector socket 17 into which the plug is inserted has a mating hole 18 in the middle of the arc-shaped mating piece 15. The outer positioning groove 13 of the housing has housing through holes 19 that communicate with the mating hole 18 at intervals around the arc. The upper reinforcing anti-shift plate 3 and the lower reinforcing anti-shift plate 4 are both semi-circular arc structures, with anti-shift plate reinforcing posts 21 and an inner arc groove 20 for fitting outside the outer positioning groove 13 of the housing. The anti-shift plate reinforcing posts 21 are sequentially inserted through the housing through holes 19 and the mating hole 18. The anti-shift plate wrapping sleeve 5 is fitted outside the upper reinforcing anti-shift plate 3 and the lower reinforcing anti-shift plate 4 and placed inside the outer positioning groove 13 of the housing.
[0018] The number of anti-displacement holes 18 for the insert is two, which improves the stability and reliability of the limit during insertion and removal.
[0019] It also includes a retaining ring 6. The outer sides of the reinforced anti-slip upper plate 3 and the reinforced anti-slip lower plate 4 are provided with anti-slip plate slots 23 for the retaining ring 6 to engage, which further strengthens the rigid support of the reinforced anti-slip upper plate 3 and the reinforced anti-slip lower plate 4, making the structure more robust.
[0020] It also includes a locking sleeve 7. The outer diameter of the anti-slip plate cover 5 is the same as the outer diameter of the middle part 10 of the housing. The outer wall of the anti-slip plate cover 5 is provided with an external thread 24, and the outer wall of the middle part 10 of the housing is provided with an external thread 25. The inner wall of the locking sleeve 7 is provided with an internal thread 26 that is threaded to the external thread 24 of the cover and the external thread 25 of the housing respectively. During maintenance, only the locking sleeve needs to be loosened to replace the anti-slip plate or the female connector assembly without the need for complete disassembly.
[0021] The anti-slip plate cover 5 is made of rubber. The anti-slip plate cover 5 is elastic, buffers the impact force during insertion and removal, and provides excellent insulation performance.
[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.
Claims
1. An extended bus connector, characterized in that: The connector includes a connector insulating housing (1), a female connector assembly (2) disposed within the connector insulating housing (1), a reinforced anti-shift upper plate (3), a reinforced anti-shift lower plate (4), and an anti-shift plate cover (5). The connector insulating housing (1) includes a housing middle portion (10) and tapered insertion portions (11) disposed at both ends of the housing middle portion (10). The connector insulating housing (1) is provided with a housing mating hole (12), and the housing middle portion (10) is provided with a housing external positioning groove (13). The female connector assembly (2) includes three arc-shaped inserts (15) arranged around an arc and an insert sleeve (16) pressed against the outside of the arc-shaped inserts (15). A connector socket (17) for plug insertion is formed between the three arc-shaped inserts (15). An anti-displacement hole (18) is provided in the middle of the arc-shaped inserts (15). The outer positioning groove (13) of the housing is provided with housing through holes (19) that communicate with the anti-displacement hole (18) around an arc. The reinforced anti-slip upper plate (3) and the reinforced anti-slip lower plate (4) are both semi-circular arc structures, with anti-slip plate reinforcing columns (21) and anti-slip plate inner arc grooves (20) for sleeved outside the outer positioning groove (13) of the housing. The anti-slip plate reinforcing columns (21) are sequentially inserted through the housing through hole (19) and the anti-slip hole (18) of the insert piece. The anti-slip plate wrapping sleeve (5) is sleeved outside the reinforced anti-slip upper plate (3) and the reinforced anti-slip lower plate (4) and placed inside the outer positioning groove (13) of the housing.
2. The extended bus connector according to claim 1, characterized in that: The number of anti-displacement holes (18) for the insert is 2.
3. The extended bus connector according to claim 1, characterized in that: It also includes a retaining ring (6), and both the reinforced anti-slip upper plate (3) and the reinforced anti-slip lower plate (4) are provided with anti-slip plate slots (23) for the retaining ring (6) to engage.
4. The extended bus connector according to claim 1, characterized in that: It also includes a locking sleeve (7), the outer diameter of the anti-slip plate sleeve (5) is the same as the outer diameter of the middle part of the housing (10), the outer wall of the anti-slip plate sleeve (5) is provided with an external thread (24), the outer wall of the middle part of the housing (10) is provided with an external thread (25), and the inner wall of the locking sleeve (7) is provided with an internal thread (26) that is threadedly connected to the external thread (24) of the sleeve and the external thread (25) of the housing respectively.
5. The extended bus connector according to claim 1, characterized in that: The anti-movement plate cover (5) is made of rubber.