Large-angle deflection electric connection structure for GIL

Abstract

The invention discloses a large-angle deflection electric connection structure for a GIL, and the structure comprises a spherical conductive seat, one end of the spherical conductive seat is connected with the conductive seat in an inserted manner, and is used for absorbing axial displacement, and the other end of the spherical conductive seat is connected with a spherical conductor in a semi-wrapping manner, and is used for absorbing angle deflection. Axial displacement caused by thermal expansion and cold contraction of equipment can be handled, the problem of large-angle deflection of a conductor caused by foundation settlement or vibration can be effectively handled, the axial displacement of the conductor can be absorbed under the combined action of the conductive seat and the spherical conductive seat, and angle deflection of the conductor can be absorbed under the combined action of the spherical conductive seat and the spherical conductor.

Description

Technical Field

[0001] This invention relates to an electrical connection structure, and more particularly to a large-angle deflection electrical connection structure for GIL. Background Technology

[0002] Currently, GIL (Gas Insulated Rail Transit) applications are becoming increasingly widespread, and the laying distances are getting longer. Due to factors such as ambient temperature, foundation settlement, and design tolerances, the GIL casing and conductors will experience a certain degree of relative displacement and deflection. Existing electrical connection structures mostly follow the design scheme of GIS busbars. Because GIS busbars are relatively short, displacement and deflection are negligible, and the problem of large-angle deflection was not considered in the initial design. Summary of the Invention

[0003] This invention provides a large-angle deflection electrical connection structure for GIL to overcome the defect of existing GIL electrical connection structures that are not adapted to large-angle deflection during long-distance laying.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: This invention discloses a large-angle deflection electrical connection structure for GIL, including a spherical conductive base. One end of the spherical conductive base is inserted into a conductive base to absorb axial displacement, and the other end is semi-enclosed to a spherical conductor to absorb angular deflection.

[0005] Furthermore, a reserved groove is provided on the inner surface of the opening at one end of the conductive base, and a watch strap contact finger A and a wear-resistant ring C are provided in the reserved groove.

[0006] Furthermore, one end of the spherical conductor is spherical, and the surface of the sphere is provided with a reserved groove. The reserved groove is provided with a wear-resistant ring A, a watch strap finger B, and a wear-resistant ring B.

[0007] Furthermore, the spherical conductive base is composed of two pieces joined together and fixed by bolts. One end is cylindrical and the other end is an arc-shaped opening. The surface is plated with silver to ensure its conductivity.

[0008] Furthermore, the arc-shaped opening of the spherical conductive base covers the spherical conductor, and the two are in a transitional fit, with the cylindrical portion of the spherical conductive base inserted into the conductive base.

[0009] The beneficial effects achieved by this invention are: it can not only cope with the axial displacement of equipment caused by thermal expansion and contraction, but also effectively cope with the problem of large-angle deflection of conductors caused by foundation settlement or vibration. The conductive base and the spherical conductive base work together to absorb the axial displacement of the conductor, and the spherical conductive base and the spherical conductor work together to absorb the angular deflection of the conductor. Attached Figure Description

[0010] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0011] In the diagram: 1. Conductive base; 2. Spherical conductive base; 3. Spherical conductor; 4. Watch strap contact A; 5. Wear ring A; 6. Watch strap contact B; 7. Wear ring B; 8. Wear ring C; 9. Bolt. Detailed Implementation

[0012] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0013] Example 1 like Figure 1-2 As shown, a large-angle deflection electrical connection structure for GIL includes a spherical conductive base 2. One end of the spherical conductive base 2 is inserted into a conductive base 1 to absorb axial displacement, and the other end is semi-enclosed to a spherical conductor 3 to absorb angular deflection.

[0014] A reserved groove is provided on the inner surface of the opening at one end of the conductive base 1. The reserved groove is provided with a watch strap contact finger A4 and a wear-resistant ring C8. The watch strap contact finger A4 plays a role in current flow.

[0015] One end of the spherical conductor 3 is spherical, and a wear-resistant ring A5, a watch strap finger B6, and a wear-resistant ring B7 are provided in the reserved groove on its surface. The wear-resistant ring A5 and the wear-resistant ring B7 serve to prevent friction between the spherical conductor 3 and the spherical cup and to ensure their concentricity. The watch strap finger B6 serves to carry current.

[0016] The spherical conductive base 2 is composed of two pieces spliced ​​together and fixed by bolts 9. One end is cylindrical and the other end is an arc-shaped opening. Its surface is plated with silver to ensure its conductivity.

[0017] The arc-shaped opening of the spherical conductive base 2 covers the spherical conductor 3, and the two are in a transitional fit. The cylindrical part of the spherical conductive base 2 is inserted into the conductive base 1.

[0018] It should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention. The terminology used in the description of this application is only for describing specific embodiments and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings indicate similar items, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0019] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0020] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

Claims

1. A large-angle deflection electrical connection structure for GIL, characterized in that, It includes a spherical conductive base, one end of which is inserted into a conductive base to absorb axial displacement, and the other end is semi-enclosed to a spherical conductor to absorb angular deflection.

2. The large-angle deflection electrical connection structure for GIL according to claim 1, characterized in that, A reserved groove is provided on the inner surface of the opening at one end of the conductive base, and a watch strap finger A and a wear-resistant ring C are provided in the reserved groove.

3. The large-angle deflection electrical connection structure for GIL according to claim 1, characterized in that, One end of the spherical conductor is spherical, and the surface of the sphere is provided with a reserved groove. The reserved groove is provided with a wear-resistant ring A, a watch strap finger B, and a wear-resistant ring B.

4. The large-angle deflection electrical connection structure for GIL according to claim 1, characterized in that, The spherical conductive base is composed of two pieces joined together and fixed by bolts. One end is cylindrical and the other end is an arc-shaped opening. The surface is plated with silver to ensure its conductivity.

5. The large-angle deflection electrical connection structure for GIL according to claim 4, characterized in that, The arc-shaped opening of the spherical conductive base covers the spherical conductor, and the two are in a transitional fit. The cylindrical part of the spherical conductive base is inserted into the conductive base.

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