CN218771249U - Integral prefabricated intermediate joint for connecting high-voltage cables with different dimensions - Google Patents
Integral prefabricated intermediate joint for connecting high-voltage cables with different dimensions Download PDFInfo
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- CN218771249U CN218771249U CN202221218911.8U CN202221218911U CN218771249U CN 218771249 U CN218771249 U CN 218771249U CN 202221218911 U CN202221218911 U CN 202221218911U CN 218771249 U CN218771249 U CN 218771249U
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Abstract
The utility model relates to a cable accessories technical field, concretely relates to connect different dimensions high tension cable's whole prefabricated formula intermediate head, including conductor connecting pipe, metallic shield cover and insulating main part. The conductor connecting pipe is connected with two cables, and the metal shielding cover is sleeved on the conductor connecting pipe; the insulation main body comprises an insulation layer I, a stress cone II and a high-voltage shielding electrode; the insulating layer I, the stress cone II and the high-voltage shielding electrode are integrally formed, and the high-voltage shielding electrode is fixedly connected to the insulating layer I and is arranged close to the metal shielding cover; the stress cone I and the stress cone II are fixedly connected to the insulating layer I and are respectively positioned on two sides of the high-voltage shielding electrode. The utility model discloses effectively reduced the cooperation cross-section, guaranteed the electrical property of product, simple structure, installation are convenient, improved work efficiency.
Description
Technical Field
The utility model relates to a cable accessories technical field, concretely relates to connect different dimensions high tension cable's whole prefabricated formula intermediate head.
Background
The cable intermediate joint is a cable accessory for cross-linked cables of various voltage grades, and mainly has the functions of ensuring smooth circuit, keeping the cables sealed, ensuring the insulation grade at the cable joint and ensuring safe and reliable operation of the cable intermediate joint. Generally, the cable specifications are the same, so the inner diameter of the integral prefabricated intermediate joint is one size. When the cable specifications to be connected are not consistent, the conventional integral prefabricated intermediate joint cannot be used for connecting two cables with different specifications.
In the prior art, the sectional combined type intermediate joint is adopted to connect cables with different specifications, the sectional combined type intermediate joint is composed of a plurality of components, the internal structure is complex, a plurality of matching interfaces exist, the electrical performance of a product is weakened, the product performance is influenced, and the installation difficulty of operators is increased.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems that in the prior art, the segmented combined type intermediate joint for connecting cables of different specifications has a complex internal structure, the electrical performance of a product is weakened, the product performance is influenced, and the installation difficulty of operators is increased, the integral prefabricated type intermediate joint for connecting high-voltage cables of different dimensions is provided.
The technical scheme of the utility model as follows:
the utility model provides a connect different size specification high tension cable's whole prefabricated formula intermediate head which characterized in that: the cable comprises a conductor connecting pipe, a metal shielding cover and an insulating main body; the conductor connecting pipes are respectively inserted with the conductor ends of two cables; the metal shielding cover is sleeved outside the conductor connecting pipe; the insulation main body comprises an insulation layer I, a stress cone II and a high-voltage shielding electrode; the insulating layer I, the stress cone II and the high-voltage shielding electrode are integrally formed; the high-voltage shielding electrode is fixedly connected to the edge of the inner diameter of the insulating layer I, and the diameter of the high-voltage shielding electrode is equal to the inner diameter of the insulating layer I; the metal shielding cover is arranged close to the high-voltage shielding electrode; the stress cone I and the stress cone II are fixedly connected to the inner diameter edge of the insulating layer I and are respectively positioned on two sides of the high-voltage shielding electrode; and the insulating layers II of the two cables are respectively arranged close to the inner diameter of the stress cone I and the inner diameter of the stress cone II.
Preferably, the edges of the two ends of the metal shield are arranged against the insulating layers ii of the two cables.
Preferably, an outer conductive layer is arranged on the outer surface of the insulating layer I; the outer conductive layer and the insulating main body are integrally formed.
Preferably, the insulating layer I, the stress cone II, the high-voltage shielding electrode and the outer conducting layer are all made of silicon rubber materials.
According to the technical scheme, compared with the prior art, the invention has the following advantages:
the utility model effectively reduces the matching cross section through the integrally formed insulating main body, ensures the electrical performance of the product and further ensures the product quality; meanwhile, the utility model has simple structure and convenient installation, and improves the working efficiency; the utility model discloses the effectual connection problem of different cables of specification of having solved.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
fig. 2 is a half-section view of the utility model.
The labels in the figure are:
1. conductor connecting pipe 2, metal shielding cover 3, cable 4 and conductor end
5. Insulating layer I6, stress cone I7, stress cone II 8, high-voltage shielding electrode
9. Insulating layer II 10, outer conductive layer
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention to be solved clearer, the present invention will be further described with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
It should be understood that the terms "upper end surface, top end, left and right ends, left side, right side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the invention.
As shown in fig. 1, an integral prefabricated intermediate joint for connecting high-voltage cables of different dimensions comprises a conductor connecting pipe 1, a metal shielding case 2 and an insulating main body.
As shown in fig. 1, the conductor connecting pipe 1 is divided into two sections of tubular structures, the two sections of tubular structures are in smooth transition connection, and the axes of the two sections of tubular structures are superposed and communicated with each other; the inner diameters of the two sections of tubular structures are respectively equal to the outer diameters of conductor ends 4 of two cables 3 to be connected; the conductor ends 4 of the two cables 3 are inserted from both ends of the conductor connecting pipe 1 and connected to each other, and are crimped and fastened by a crimping pliers. The metallic shield 2 serves to reduce the electric field strength at the junction of the two cables 3.
As shown in fig. 1, the metal shielding case 2 is divided into two sections of tubular structures, the two sections of tubular structures are in smooth transition connection, and the inner diameters of the two sections of tubular structures are the same as the outer diameter of the conductor connecting pipe 1; the metal shielding cover 2 is sleeved outside the conductor connecting pipe 1, and the outer diameters of the two sections of tubular structures of the metal shielding cover 2 are respectively flush with the outer surfaces of the insulating layers II 9 of the two cables 3 and are arranged close to the insulating layers II 9 of the two cables 3.
As shown in fig. 2, the insulating body comprises an insulating layer i 5, a stress cone i 6, a stress cone ii 7, a high voltage shielding electrode 8 and an outer conductive layer 10. The insulating layer I5, the stress cone I6, the stress cone II 7, the high-voltage shielding electrode 8 and the outer conducting layer 10 are integrally formed in production, and the materials are all made of silicon rubber materials.
As shown in fig. 1, the insulating layer i 5 is divided into two tubular structures, and the two tubular structures are respectively equal to the outer diameters of the insulating layers ii 9 of the two cables 3; the outer surface of the insulating layer I5 is provided with an outer conductive layer 10.
As shown in fig. 1, the high-voltage shielding electrode 8 is fixedly connected to an insulating layer i 5 at the connection position of the conductor ends 4 of the two cables 3, the high-voltage shielding electrode 8 is divided into two-end tubular structures, and the inner diameters of the two-end tubular structures are equal to the outer diameters of the two-section tubular structures of the metal shielding case 2; the high voltage shielding electrode 8 is arranged in close proximity to the metallic shield 2.
As shown in fig. 2, a stress cone i 6 and a stress cone ii 7 are respectively fixedly connected to two end portions of an insulating layer i 5, outer ends of the stress cone i 6 and the stress cone ii 7 respectively extend out of the two end portions of the insulating layer i 5, the stress cone i 6 is located on the left side of a high-voltage shielding electrode 8, and the stress cone ii 7 is located on the right side of the high-voltage shielding electrode 8; because the electric field distribution of the cables 3 at the two ends is different, the geometric shapes of the stress cone I6 and the stress cone II 7 are different so as to homogenize the electric field distribution of the cables 3 at the two ends. The inner diameters of the stress cone I6 and the stress cone II 7 are respectively equal to the outer diameters of the insulating layers of the two cables 3.
As shown in fig. 2, the two cables 3 connected to the conductor connecting tube 1 and the metal shield case 2 are connected by inserting the outer ends of the smaller-sized cables 3 into the insulating body from the larger inner diameter end of the insulating layer ii 9 in the direction of the arrow in fig. 2.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention, which are made by those skilled in the art without departing from the spirit of the present invention, should fall within the protection scope defined by the claims of the present invention.
Claims (4)
1. The utility model provides a connect different size specification high tension cable's whole prefabricated formula intermediate head which characterized in that: the device comprises a conductor connecting pipe (1), a metal shielding cover (2) and an insulating main body; conductor ends (4) of two cables (3) are respectively inserted into the conductor connecting pipe (1); the metal shielding cover (2) is sleeved outside the conductor connecting pipe (1); the insulating main body comprises an insulating layer I (5), a stress cone I (6), a stress cone II (7) and a high-voltage shielding electrode (8); the insulating layer I (5), the stress cone I (6), the stress cone II (7) and the high-voltage shielding electrode (8) are integrally formed; the high-voltage shielding electrode (8) is fixedly connected to the edge of the inner diameter of the insulating layer I (5), and the diameter of the high-voltage shielding electrode is equal to the inner diameter of the insulating layer I (5); the metal shielding cover (2) is arranged close to the high-voltage shielding electrode (8); the stress cone I (6) and the stress cone II (7) are fixedly connected to the inner diameter edge of the insulating layer I (5) and are respectively positioned on two sides of the high-voltage shielding electrode (8); the insulation layers II (9) of the two cables (3) are respectively arranged close to the inner diameter of the stress cone I (6) and the inner diameter of the stress cone II (7); the conductor connecting pipe is divided into two sections of tubular structures, the two sections of tubular structures are in smooth transition connection, and the axes of the two sections of tubular structures are superposed and communicated with each other; the inner diameters of the two sections of tubular structures are respectively equal to the outer diameters of conductor ends of two cables to be connected; the stress cone I (6) and the stress cone II (7) are different in geometric shape and are used for homogenizing electric field distribution of cables at two ends.
2. An integrally prefabricated intermediate joint for connecting high-voltage cables of different dimensions as claimed in claim 1, wherein: the edges of the two ends of the metal shielding cover (2) are arranged close to the insulating layers II (9) of the two cables (3).
3. An integrally prefabricated intermediate joint for connecting high-voltage cables of different dimensions as claimed in claim 1, wherein: an outer conducting layer (10) is arranged on the outer surface of the insulating layer I (5); the outer conductive layer (10) is integrally formed with the insulating body.
4. An integrally prefabricated intermediate joint for connecting high-voltage cables of different dimensions as claimed in claim 1, wherein: the insulating layer I (5), the stress cone I (6), the stress cone II (7), the high-voltage shielding electrode (8) and the outer conducting layer are all made of silicon rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221218911.8U CN218771249U (en) | 2022-05-20 | 2022-05-20 | Integral prefabricated intermediate joint for connecting high-voltage cables with different dimensions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221218911.8U CN218771249U (en) | 2022-05-20 | 2022-05-20 | Integral prefabricated intermediate joint for connecting high-voltage cables with different dimensions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218771249U true CN218771249U (en) | 2023-03-28 |
Family
ID=85642536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221218911.8U Active CN218771249U (en) | 2022-05-20 | 2022-05-20 | Integral prefabricated intermediate joint for connecting high-voltage cables with different dimensions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218771249U (en) |
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2022
- 2022-05-20 CN CN202221218911.8U patent/CN218771249U/en active Active
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