CN216117877U - High-voltage cable plug-in GIS terminal crimping-free outlet terminal structure - Google Patents
High-voltage cable plug-in GIS terminal crimping-free outlet terminal structure Download PDFInfo
- Publication number
- CN216117877U CN216117877U CN202122722393.5U CN202122722393U CN216117877U CN 216117877 U CN216117877 U CN 216117877U CN 202122722393 U CN202122722393 U CN 202122722393U CN 216117877 U CN216117877 U CN 216117877U
- Authority
- CN
- China
- Prior art keywords
- conductor
- voltage cable
- conical conductor
- pressing sleeve
- transition ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
A high-voltage cable plug-in GIS terminal crimping-free outlet terminal structure belongs to the technical field of electrical industry and comprises an outer conical conductor pressing sleeve, an inner conical conductor transition ring and a spring contact. The outer conical conductor compression sleeve is sleeved on the high-voltage cable conductor, the inner conical conductor transition ring is preassembled on the outer conical conductor compression sleeve, and the inner conical conductor transition ring is continuously sleeved by using a special mounting tool, so that the inner hole of the outer conical conductor compression sleeve is gradually reduced under the pressure of the inner conical conductor transition ring to compress the high-voltage cable conductor. When compressing to a certain degree, high tension cable conductor, outer toper conductor compress tightly the cover, interior toper conductor transition ring is hugged closely and is in the same place, can play conduction current's effect safely, overlaps spring contact to the annular groove in, accomplishes GIS terminal and exempts from the equipment of crimping terminal promptly. The utility model has simple structure, can finish product assembly by using a small and exquisite simple special tool and ensures that the axis of the terminal is completely coincided with the axis of the high-voltage cable conductor.
Description
Technical Field
The utility model belongs to the technical field of the electrical industry, and particularly relates to a high-voltage cable plug-in GIS terminal crimping-free outgoing line terminal structure.
Background
GIS is a gas insulated totally enclosed type combined electrical apparatus, which is composed of a breaker, a disconnecting switch, a grounding switch, a mutual inductor, a lightning arrester, a bus, a connecting piece, an outgoing line terminal and the like, all of which are enclosed in a metal grounded shell, and SF6 insulating gas with certain pressure is filled in the metal grounded shell, so the GIS is also called as an SF6 totally enclosed type combined electrical apparatus, and the GIS is widely applied to transformer substations due to small volume, safety and reliability. The high-voltage cable plug-in type GIS terminal is a component for connecting a high-voltage cable and a GIS, and the wire outlet terminal is an important component in the GIS high-voltage cable plug-in type GIS terminal, is an intermediate transition device for connecting a high-voltage cable conductor and an epoxy bushing high-voltage electrode together and is used for transmitting electric energy transmitted by the high-voltage cable to the epoxy bushing high-voltage electrode through the conductor.
The traditional high-voltage cable plug-in GIS terminal outlet terminal mainly comprises a conductor outlet terminal main body and a spring contact embedded on the conductor outlet terminal main body. The conductor outgoing terminal body is divided into a compression part with a lower tubular structure and a cylindrical conductive part with an upper annular groove, an inner hole of the lower tubular compression part can be inserted and accommodate a high-voltage cable conductor, and then the tubular part of the conductor outgoing terminal is mechanically compressed by a special electric hydraulic clamp to generate plastic deformation, so that the conductor outgoing terminal and the high-voltage cable conductor are connected together; the cylindrical conductive part with the annular groove at the upper part is communicated with the inner surface of the cylindrical high-voltage electrode of the epoxy sleeve through the spring contact embedded in the annular groove, so that the high-voltage cable conductor is communicated with the high-voltage electrode of the epoxy sleeve, and the purpose of transmitting electric energy by the conductor outgoing line terminal is further realized.
Although the high-voltage cable plug-in GIS terminal outlet terminal has a simple structure and is convenient to install, when the high-voltage cable conductor and the outlet terminal main body are in compression joint operation, the situation that the axis of the compressed terminal is not coincident with the axis of the high-voltage cable conductor is easy to occur, namely, the bending phenomenon is generated at the compressed part, which brings great inconvenience and hidden danger of installation quality to subsequent installation operation, not only influences the installation speed of the high-voltage cable plug-in GIS terminal, but also cannot ensure the final installation quality of the high-voltage cable plug-in GIS terminal.
Therefore, there is a need in the art for a new solution to solve this problem.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a high tension cable plug-in GIS terminal exempts from crimping terminal structure of being qualified for next round of competitions is used for solving high tension cable plug-in GIS terminal among the prior art and in the installation, because produce crooked and appear the technical problem of terminal axis and the high tension cable conductor axis phenomenon of not coinciding of crimping terminal during.
A high-voltage cable plug-in GIS terminal crimping-free outgoing line terminal structure comprises an outer conical conductor pressing sleeve, an inner conical conductor transition ring and a spring contact, wherein the outer conical conductor pressing sleeve is of a conical tubular structure, the outer surface of the outer conical conductor pressing sleeve is conical, a thread is machined in an inner hole of the outer conical conductor pressing sleeve, the inner hole of the outer conical conductor pressing sleeve is sleeved outside a high-voltage cable conductor, grooves I which are consistent in width and are not communicated are uniformly arranged on the inner side wall of the outer conical conductor pressing sleeve from the upper end surface to the lower end surface, and grooves II which are consistent in width are uniformly arranged on the outer side wall of the outer conical conductor pressing sleeve from the lower end surface to the upper end surface; the grooves II and the grooves I are arranged at intervals, wherein one of the grooves II penetrates through the upper end face to the lower end face of the outer conical conductor pressing sleeve and penetrates through the inner wall to the outer wall of the outer conical conductor pressing sleeve, and the rest of the grooves II are not penetrated;
the inner conical conductor transition ring is a tubular object, an inner hole of the inner conical conductor transition ring is conical and is matched with the shape of the outer surface of the outer conical conductor pressing sleeve, the outer part of the outer conical conductor pressing sleeve is sleeved with the inner hole of the inner conical conductor transition ring, and an annular groove is formed in the outer surface of the inner conical conductor transition ring;
the spring contact is of a circular ring spring structure and is sleeved on the annular groove.
The number of the grooves I is four.
The number of the grooves II is four.
The plane where the annular groove is located is perpendicular to the central axis of the inner hole of the inner conical conductor transition ring.
Through the design scheme, the utility model can bring the following beneficial effects:
the utility model has simple structure and convenient operation, does not need to use heavy electric hydraulic pliers to crimp the terminal in the installation process, can finish product assembly only by using a small and exquisite simple special tool, and has the more remarkable advantage that the axial line of the assembled terminal is completely coincided with the axial line of a high-voltage cable conductor because no bending is generated by crimping, thereby providing reliable guarantee for the subsequent installation quality and installation speed.
Drawings
The utility model is further described with reference to the following figures and detailed description:
fig. 1 is a schematic structural diagram of a high-voltage cable plug-in type GIS terminal crimping-free outlet terminal structure of the present invention.
Fig. 2 is a schematic structural diagram of an outer tapered conductor pressing sleeve in the high-voltage cable plug-in type GIS terminal crimping-free outlet terminal structure of the utility model.
Fig. 3 is a schematic diagram of an a-a direction structure of an outer tapered conductor pressing sleeve in the high-voltage cable plug-in type GIS terminal no-press-connection outlet terminal structure of the present invention.
Fig. 4 is a schematic view of the upward-looking structure of the outer tapered conductor pressing sleeve in the high-voltage cable plug-in type GIS terminal no-crimp outlet terminal structure of the present invention.
Fig. 5 is a schematic structural diagram of an inner tapered conductor transition ring in the high-voltage cable plug-in type GIS terminal no-crimp outgoing line terminal structure of the present invention.
Fig. 6 is a schematic structural diagram of a spring contact in the high-voltage cable plug-in type GIS terminal no-press-connection outlet terminal structure of the present invention.
In the figure, 1-an outer conical conductor compression sleeve, 2-an inner conical conductor transition ring, 3-a spring contact, 4-a high-voltage cable conductor, 101-a groove I, 102-a groove II and 201-an annular groove.
Detailed Description
As shown in the figure, the high-voltage cable plug-in GIS terminal crimping-free outlet terminal structure comprises an outer conical conductor pressing sleeve 1, an inner conical conductor transition ring 2 and a spring contact 3,
the outer conical conductor pressing sleeve 1 is of a conical tubular structure and is made of a T2 copper material, and the inner surface and the outer surface of the outer conical conductor pressing sleeve are all plated with tin. As shown in fig. 2, the outer tapered conductor pressing sleeve 1 is as shown in fig. 2, fig. 3 and fig. 4, the outer surface of the outer tapered conductor pressing sleeve is tapered, the inner hole is provided with a thread, and the inner hole of the outer tapered conductor pressing sleeve 1 is sleeved outside the high-voltage cable conductor 4, so that when the outer tapered conductor pressing sleeve 1 is radially stressed to have a smaller inner diameter and is pressed on the high-voltage cable conductor 4, the thread crest of the thread penetrates into the high-voltage cable conductor 4, thereby increasing the contact area between the outer tapered conductor pressing sleeve and the high-voltage cable conductor, reducing the current density per unit area on the contact surface, further reducing the temperature rise of the contact part between the outer tapered conductor pressing sleeve and the high-voltage cable conductor, and improving the operation reliability of the terminal. Four grooves I101 with the width of 2mm and no through are uniformly arranged on the inner side wall of the outer conical conductor pressing sleeve 1 from the upper end surface to the lower end surface, and four grooves II 102 with the width of 2mm are uniformly arranged on the outer side wall of the outer conical conductor pressing sleeve 1 from the lower end surface to the upper end surface; the grooves II 102 and the grooves I101 are arranged at intervals, wherein one of the grooves II 102 penetrates through the upper end face to the lower end face of the outer conical conductor pressing sleeve 1 and penetrates through the outer side wall to the inner side wall of the outer conical conductor pressing sleeve 1, and the rest grooves II 102 are not penetrated. Outer toper conductor compresses tightly cover 1 so design and mainly has two aspect reasons, first cooperate with interior toper conductor transition ring 2, utilize the characteristics of the conical surface can compress tightly cover 1 for outer toper conductor and apply a radial pressure all around, second is the morse taper fit that forms after two conical surface assemblies, can not produce relative displacement because of the auto-lock between two subassemblies, promptly: the periphery of the outer conical conductor pressing sleeve 1 is pressed radially and deformed inwards and then is connected with the high-voltage cable conductor into a whole, and the inner conical conductor transition ring 2 does not slide axially, so that the outer conical conductor pressing sleeve 1, the high-voltage cable conductor 4 and the inner conical conductor transition ring 2 are always connected together, and the mutual loosening phenomenon cannot occur.
The inner conical conductor transition ring 2 is a tubular object, is made of T2 copper, and is plated with tin on the inner surface and the outer surface. The structure sketch of interior toper conductor transition ring 2 is shown in figure 5, and the hole of interior toper conductor transition ring 2 is coniform and matches with the surface shape of outer toper conductor clamping sleeve 1, and the outside of outer toper conductor clamping sleeve 1 is overlapped to the hole suit of interior toper conductor transition ring 2, and the surface of interior toper conductor transition ring 2 is provided with the annular groove 201 of installation and supporting spring contact 3. When the inner conical conductor transition ring 2 and the outer conical conductor pressing sleeve 1 have relative downward displacement, the conical surface generates a radial acting force to be applied to the outer conical surface of the outer conical conductor pressing sleeve 1, so that the outer conical conductor pressing sleeve 1 is radially and inwardly deformed to be pressed on the high-voltage cable conductor 4.
The spring contact 3 is made of beryllium bronze, and the outer surface of the spring contact is plated with silver. The spring contact 3 is shown in a schematic structure diagram of fig. 6, and is of a circular ring spring structure, and the spring contact 3 is sleeved in the annular groove 201. The plane of the annular groove 201 is perpendicular to the central axis of the inner hole of the inner conical conductor transition ring 2. When the spring contact 3 installed in the annular groove 201 is pressed by the inner surface of the upper electrode of the epoxy sleeve, the spring contact 3 deforms, so that inward and outward radial elastic forces are generated simultaneously and are respectively pressed on the outer surface of the annular groove 201 and the inner surface of the upper electrode of the epoxy sleeve, and finally, the functions of communicating the upper electrode of the epoxy sleeve with the high-voltage cable conductor 4 and transmitting current are realized.
The specific technical scheme of the structure is as follows: firstly, the outer conical conductor pressing sleeve 1 is sleeved into the high-voltage cable conductor 4, then the inner conical conductor transition ring 2 is preassembled on the outer conical conductor pressing sleeve 1, and the inner conical conductor transition ring 2 is continuously sleeved by a special mounting tool, so that the inner hole of the outer conical conductor pressing sleeve 1 is gradually reduced under the pressure of the inner conical conductor transition ring 2 to compress the high-voltage cable conductor 4. When the high-voltage cable conductor is compressed to a certain degree, the high-voltage cable conductor 4, the outer conical conductor pressing sleeve 1 and the inner conical conductor transition ring 2 are tightly attached together, so that the function of conducting current can be safely achieved; the spring contact 3 is sleeved in the annular groove 201 of the inner conical conductor transition ring 2, namely the assembly of the GIS terminal compression-free terminal is completed, and the contact surface between the assembled compression-free terminal outer conical compression sleeve and the outer conical conductor transition ring is in mode taper fit, so that the compression-free terminal cannot be loosened automatically.
Claims (4)
1. The utility model provides a high tension cable plug-in GIS terminal exempts from crimping terminal structure of being qualified for next round of competitions, characterized by: the high-voltage cable conductor clamping device comprises an outer conical conductor pressing sleeve (1), an inner conical conductor transition ring (2) and a spring contact (3), wherein the outer conical conductor pressing sleeve (1) is of a conical tubular structure, the outer surface of the outer conical conductor pressing sleeve (1) is conical, threads are machined in an inner hole of the outer conical conductor pressing sleeve (1), the inner hole of the outer conical conductor pressing sleeve (1) is sleeved outside a high-voltage cable conductor, grooves I (101) which are consistent in width and are not communicated are uniformly arranged on the inner side wall of the outer conical conductor pressing sleeve (1) from the upper end surface to the lower end surface, and grooves II (102) which are consistent in width are uniformly arranged on the outer side wall of the outer conical conductor pressing sleeve (1) from the lower end surface to the upper end surface; the grooves II (102) and the grooves I (101) are arranged at intervals, wherein one of the grooves II (102) penetrates through the upper end face to the lower end face of the outer conical conductor pressing sleeve (1), penetrates through the inner wall to the outer wall of the outer conical conductor pressing sleeve (1), and the rest grooves II (102) are not penetrated;
the inner conical conductor transition ring (2) is a tubular object, an inner hole of the inner conical conductor transition ring (2) is conical and is matched with the shape of the outer surface of the outer conical conductor pressing sleeve (1), the outer part of the outer conical conductor pressing sleeve (1) is sleeved with the inner hole of the inner conical conductor transition ring (2), and an annular groove (201) is formed in the outer surface of the inner conical conductor transition ring (2);
the spring contact (3) is of a circular ring spring structure, and the spring contact (3) is sleeved on the annular groove (201).
2. The high-voltage cable plug-in GIS terminal crimping-free outlet terminal structure as claimed in claim 1, wherein: the number of the grooves I (101) is four.
3. The high-voltage cable plug-in GIS terminal crimping-free outlet terminal structure as claimed in claim 1, wherein: the number of the grooves II (102) is four.
4. The high-voltage cable plug-in GIS terminal crimping-free outlet terminal structure as claimed in claim 1, wherein: the plane of the annular groove (201) is perpendicular to the central axis of the inner hole of the inner conical conductor transition ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122722393.5U CN216117877U (en) | 2021-11-09 | 2021-11-09 | High-voltage cable plug-in GIS terminal crimping-free outlet terminal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122722393.5U CN216117877U (en) | 2021-11-09 | 2021-11-09 | High-voltage cable plug-in GIS terminal crimping-free outlet terminal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216117877U true CN216117877U (en) | 2022-03-22 |
Family
ID=80714417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122722393.5U Active CN216117877U (en) | 2021-11-09 | 2021-11-09 | High-voltage cable plug-in GIS terminal crimping-free outlet terminal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216117877U (en) |
-
2021
- 2021-11-09 CN CN202122722393.5U patent/CN216117877U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204144594U (en) | A kind of compression joint type microminiature Bussing connector | |
| CN109727713B (en) | High-power charging pile cold-stringing cable with red copper corrugated pipe structure | |
| CN108649353A (en) | A kind of flexibility midium voltage cable fast joint device | |
| CN216117877U (en) | High-voltage cable plug-in GIS terminal crimping-free outlet terminal structure | |
| CN109390713A (en) | A kind of water proof type conducting wire electric connector | |
| CN207530115U (en) | A kind of cable aluminium-alloy pipe terminal grounding connector | |
| CN217281559U (en) | 150KV three-core large-current high-voltage cable | |
| CN111312439A (en) | Electric energy transmission aluminum piece and processing technology thereof | |
| CN218548804U (en) | Novel cable connecting terminal | |
| CN208256428U (en) | A kind of connecting terminal, casing and transformer | |
| CN214754628U (en) | Terminal crimping machine suitable for cable joint crimping | |
| CN201674003U (en) | CT loop electrified sealing device | |
| CN110571565B (en) | Quick connecting device for high-voltage wire connector | |
| CN202616731U (en) | 35kV inner cone plug-in type cable terminal | |
| CN211556181U (en) | Tubular bus joint | |
| CN201698915U (en) | Explosion-proof vacuum electromagnetic starter for mining | |
| CN210778017U (en) | Coaxial cable | |
| CN110890176A (en) | Coaxial cable and method for connecting end portions thereof | |
| CN218334390U (en) | Plug-in cable terminal and connecting device thereof | |
| CN210778016U (en) | Combined coaxial cable | |
| CN215007875U (en) | High-voltage bushing tail end structure with direction-adjustable wiring board | |
| CN114744582B (en) | Cable joint convenient to operate for power line | |
| CN215008820U (en) | 35KV/2500A high-voltage large-current connecting bus device | |
| CN110620000A (en) | Voltage transformer and shielding case thereof | |
| CN220253691U (en) | Attached radio frequency coaxial connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |