Intensive bus duct plug-in box plug
Through the design of T-type plug-ins and insulated base, combined with elastic plywood, the complex structure and poor contact problems of the intensive bus slot plug box plug are solved, convenient installation and stable contact are achieved, heating risks are reduced, and safety is improved.
Patent Information
- Application Number
- CN202422403707.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The plugs of the existing intensive bus trough plug box are complex in structure, inconvenient to install, and take up a large space. The conductive clamps and bus trough conductors are in poor contact with each other and are prone to heat up, and the unreasonable design leads to safety hazards.
The T-type plug-in design is adopted, combining the insulated base and elastic clamp, and the insert and the insulated base are tightened by bolt connections. The elastic clamp pressed by 65Mn spring steel is used to ensure the elastic contact of the conductive clamp and avoid heating.
The structure of the plug-in box is simplified, installation convenience is improved, space occupation is reduced, the conductive clamps are stable in contact with the busbar conductor, the risk of heating is reduced, and safety is improved.
Smart Images
Figure CN223218490U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric power equipment, in particular to a dense bus trough plug-in box plug. Background Art
[0002] At present, the plug structures of the dense bus duct plug-in boxes on the market are diverse. Some copper plugs are not convenient to install with the insulating base, and the switches and plugs in the plug-in box are not convenient to connect. Many fixed connectors are used and they take up a lot of space. Some copper plugs are pressed into an integrated form with the insulating base, all with three-phase five-wire plugs, which are large in size and cannot flexibly select the plug size and quantity according to the current and bus duct wiring system, resulting in waste. Some plug-in plugs cannot effectively ensure that the conductive splint is in full contact with the bus duct conductor, which easily causes heating of the plug-in point and short service life. In order to increase the strength, some insulating bases are designed to be very thick, bulky in appearance, wasteful of materials and high in cost. The phase-to-phase distance and insulation design of some plugs are unreasonable, resulting in too small electrical clearance and creepage distance between phases after the plug is inserted, which may cause unsafe factors such as short circuits during live maintenance and plugging. Utility Model Content
[0003] The purpose of the utility model is to provide a dense bus duct plug-in box plug, aiming to solve the problems of complex structure and unreasonable design existing in the above background technology.
[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a dense busbar trough plug-in box plug, comprising an insulating base arranged on the inner wall of the plug-in box and a plug-in arranged on the insulating base, the plug-in comprising a T-shaped piece and a plug connector, the T-shaped piece consisting of a flange plate and a web plate arranged at the center of the bottom surface of the flange plate, the web plate and the flange plate being perpendicular to each other, positioning grooves being respectively provided at both ends of the flange plate, the plug connector presenting an inwardly concave arc structure, the plug connector comprising a conductive splint and an elastic splint, the conductive splint being arranged on both sides of the free end of the web plate, the elastic splint being arranged on the outside of the conductive splint and fitting therewith, the plug-in being threadedly connected to the insulating base through two bolts arranged at intervals on the flange plate.
[0005] Furthermore, the insulating base includes a convex cover and a connecting plate provided on the lower edge of the convex cover.
[0006] Furthermore, the insulating base is provided with positioning posts that cooperate with the positioning grooves and square holes for installing plug-ins. The positioning posts are symmetrically arranged on both sides of the square hole and cooperate with the positioning grooves.
[0007] Furthermore, reinforcing ribs are provided on both the front and back sides of the insulating base at the stress-bearing position of the plug-in installation.
[0008] Furthermore, a positioning frame is provided at the bottom end of the insulating base.
[0009] The utility model has the following beneficial effects:
[0010] The utility model provides a dense bus duct plug-in box plug, which solves the problems of complex design of dense bus duct plug-in box plug, too many connectors, inconvenient installation, and large space occupation through the design of T-shaped plug-in. The elastic splint pressed by 65Mn spring steel is added to ensure the elasticity of the conductive splint during plugging and unplugging, and prevent heating failure caused by insufficient contact pressure. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is the assembly drawing of the utility model;
[0012] Figure 2 It is a side sectional view of the utility model;
[0013] Figure 3 It is a structural diagram of the utility model;
[0014] Figure 4 This is a schematic diagram of the top view of the insulating base in the present utility model;
[0015] Figure 5 This is a schematic diagram of the bottom view of the insulating base in the present invention;
[0016] In the figure: 1. Insulating base; 2. Plug-in; 3. T-shaped piece; 4. Plug connector; 5. Positioning slot; 6. Conductive splint; 7. Elastic splint; 8. Positioning column; 9. Square hole; 10. Reinforcement rib; 11. Positioning frame; 12. Plug-in box. DETAILED DESCRIPTION
[0017] like Figures 1 to 4 As shown, a dense busbar trough plug-in box plug includes an insulating base 1 provided on the inner wall of the plug-in box 12 and a plug-in 2 provided on the insulating base 1. The insulating base 1 includes a convex cover and a connecting plate provided on the lower edge of the convex cover; the plug-in 2 is made of a T-shaped piece 3 and a plug-in connector 4 riveted together with copper rivets. The T-shaped piece 3 consists of a flange plate and a web provided at the center of the bottom surface of the flange plate. The web plate and the flange plate are perpendicular to each other. Positioning grooves 5 are provided at both ends of the flange plate. The plug-in connector 4 includes a conductive clamping plate 6 and an elastic clamping plate 7. The conductive clamping plate 6 is provided with a plurality of springs. On both sides of the free end of the web, elastic clamps 7 are arranged on the outside of the conductive clamps 6 and fit with them. The conductive clamps 6 are made of T2 copper plates of corresponding specifications and pressed into a special shape to achieve double-sided overlap between the plug-in 2 and the bus duct conductor. The addition of elastic clamps 7 pressed from 65Mn spring steel ensures the elasticity and contact pressure of the conductive clamps 6 during insertion and removal. The plug-in 2 is threadedly connected to the insulating base 1 through two bolts arranged at intervals on the flange plate. The bolts not only serve as a connection, but also serve as terminals for connecting the wires between the switch and the plug-in in the plug-in box.
Claims
1. A dense busbar trough plug-in box plug, comprising an insulating base (1) arranged on the inner wall of the plug-in box and a plug-in (2) arranged on the insulating base (1), characterized in that: The plug-in (2) comprises a T-shaped piece (3) and a plug connector (4), wherein the T-shaped piece (3) comprises a flange plate and a web plate provided at the center of the bottom surface of the flange plate, wherein the web plate and the flange plate are perpendicular to each other, and positioning grooves (5) are provided at both ends of the flange plate, respectively. The plug connector (4) is an inwardly concave arc structure, and the plug connector (4) comprises a conductive clamping plate (6) and an elastic clamping plate (7), wherein the conductive clamping plate (6) is provided on both sides of the free end of the web plate, and the elastic clamping plate (7) is provided on the outside of the conductive clamping plate (6) and is in contact with the conductive clamping plate (6), and the plug-in (2) is threadedly connected to the insulating base (1) through two bolts provided at intervals on the flange plate.
2. The intensive bus duct plug-in box plug according to claim 1, characterized in that: The insulating base (1) comprises a convex cover and a connecting plate provided on the lower edge of the convex cover.
3. The dense bus duct plug-in box plug according to claim 1, characterized in that: The insulating base (1) is provided with a positioning column (8) that cooperates with the positioning groove (5) and a square hole (9) for installing a plug-in. The positioning column (8) is symmetrically arranged on both sides of the square hole (9) and cooperates with the positioning groove (5).
4. The dense bus duct plug-in box plug according to claim 1, characterized in that: Reinforcing ribs (10) are provided on both the front and back sides of the insulating base (1) at the location where the plug-in (2) is installed and subjected to stress.
5. The dense bus duct plug-in box plug according to claim 1, characterized in that: A positioning frame (11) is provided at the bottom end of the insulating base (1).